./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for memory safety (deref-memtrack)
Using default analysis
Version 803cd42f
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b19ed65fc9d9f8e19f4d644b05d37e3da28cb107a90eedb15c652c094a7f23f1
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 18:42:05,306 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 18:42:05,373 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2024-11-22 18:42:05,377 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 18:42:05,379 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 18:42:05,408 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 18:42:05,410 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 18:42:05,410 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 18:42:05,411 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 18:42:05,411 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 18:42:05,412 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 18:42:05,412 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 18:42:05,413 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 18:42:05,413 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 18:42:05,413 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 18:42:05,414 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 18:42:05,416 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-22 18:42:05,416 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 18:42:05,416 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-22 18:42:05,416 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 18:42:05,417 INFO  L153        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2024-11-22 18:42:05,417 INFO  L153        SettingsManager]:  * Bitprecise bitfields=true
[2024-11-22 18:42:05,417 INFO  L153        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2024-11-22 18:42:05,417 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 18:42:05,417 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-22 18:42:05,417 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 18:42:05,418 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2024-11-22 18:42:05,418 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-22 18:42:05,418 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 18:42:05,418 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 18:42:05,418 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 18:42:05,418 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 18:42:05,418 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 18:42:05,418 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 18:42:05,419 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 18:42:05,419 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 18:42:05,419 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 18:42:05,419 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 18:42:05,419 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 18:42:05,419 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 18:42:05,419 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 18:42:05,421 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 18:42:05,421 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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/ultimate/releaseScripts/default/UAutomizer-linux
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 valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )


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 -> b19ed65fc9d9f8e19f4d644b05d37e3da28cb107a90eedb15c652c094a7f23f1
[2024-11-22 18:42:05,620 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 18:42:05,648 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 18:42:05,650 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 18:42:05,650 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 18:42:05,654 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 18:42:05,655 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i
[2024-11-22 18:42:07,159 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 18:42:07,338 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 18:42:07,338 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/memsafety-ext/dll_extends_pointer.i
[2024-11-22 18:42:07,354 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c413f6d33/a71c52f33d8f411e9babaf036eac5292/FLAG1210d2bd6
[2024-11-22 18:42:07,367 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c413f6d33/a71c52f33d8f411e9babaf036eac5292
[2024-11-22 18:42:07,369 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 18:42:07,370 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 18:42:07,371 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 18:42:07,371 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 18:42:07,375 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 18:42:07,376 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,378 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7dc590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07, skipping insertion in model container
[2024-11-22 18:42:07,379 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,419 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 18:42:07,655 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 18:42:07,681 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 18:42:07,783 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 18:42:07,819 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 18:42:07,819 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07 WrapperNode
[2024-11-22 18:42:07,819 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 18:42:07,821 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 18:42:07,824 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 18:42:07,824 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 18:42:07,832 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,848 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,878 INFO  L138                Inliner]: procedures = 123, calls = 21, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64
[2024-11-22 18:42:07,879 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 18:42:07,879 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 18:42:07,879 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 18:42:07,879 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 18:42:07,892 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,892 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,898 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,924 INFO  L175           MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 7 writes are split as follows [0, 7].
[2024-11-22 18:42:07,924 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,924 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,936 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,945 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,946 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,946 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,952 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 18:42:07,952 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 18:42:07,953 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 18:42:07,953 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 18:42:07,953 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (1/1) ...
[2024-11-22 18:42:07,961 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 18:42:07,970 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:42:07,984 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-22 18:42:07,987 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-22 18:42:08,034 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-22 18:42:08,034 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 18:42:08,035 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-22 18:42:08,035 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-22 18:42:08,035 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-22 18:42:08,035 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-22 18:42:08,035 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-22 18:42:08,035 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 18:42:08,035 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-22 18:42:08,036 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 18:42:08,036 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 18:42:08,141 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 18:42:08,143 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 18:42:08,309 INFO  L?                        ?]: Removed 57 outVars from TransFormulas that were not future-live.
[2024-11-22 18:42:08,309 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 18:42:08,318 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 18:42:08,318 INFO  L316             CfgBuilder]: Removed 2 assume(true) statements.
[2024-11-22 18:42:08,318 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:42:08 BoogieIcfgContainer
[2024-11-22 18:42:08,318 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 18:42:08,319 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 18:42:08,320 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 18:42:08,325 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 18:42:08,325 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 06:42:07" (1/3) ...
[2024-11-22 18:42:08,326 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eaef6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:42:08, skipping insertion in model container
[2024-11-22 18:42:08,326 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 06:42:07" (2/3) ...
[2024-11-22 18:42:08,326 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4eaef6eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 06:42:08, skipping insertion in model container
[2024-11-22 18:42:08,326 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 06:42:08" (3/3) ...
[2024-11-22 18:42:08,327 INFO  L112   eAbstractionObserver]: Analyzing ICFG dll_extends_pointer.i
[2024-11-22 18:42:08,338 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 18:42:08,338 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations.
[2024-11-22 18:42:08,366 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 18:42:08,371 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5d25240e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 18:42:08,371 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 27 error locations.
[2024-11-22 18:42:08,373 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 59 states, 31 states have (on average 2.064516129032258) internal successors, (64), 58 states have internal predecessors, (64), 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)
[2024-11-22 18:42:08,377 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-11-22 18:42:08,377 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:08,377 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-11-22 18:42:08,378 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:08,381 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:08,382 INFO  L85        PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times
[2024-11-22 18:42:08,388 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:08,388 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704651851]
[2024-11-22 18:42:08,388 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:08,389 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:08,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:08,564 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:08,566 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:08,566 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704651851]
[2024-11-22 18:42:08,567 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704651851] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:08,567 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:08,567 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-22 18:42:08,568 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308975463]
[2024-11-22 18:42:08,569 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:08,572 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 18:42:08,574 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:08,596 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 18:42:08,597 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 18:42:08,599 INFO  L87              Difference]: Start difference. First operand  has 59 states, 31 states have (on average 2.064516129032258) internal successors, (64), 58 states have internal predecessors, (64), 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) Second operand  has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-22 18:42:08,678 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:08,678 INFO  L93              Difference]: Finished difference Result 56 states and 60 transitions.
[2024-11-22 18:42:08,679 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 18:42:08,680 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2024-11-22 18:42:08,680 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:08,685 INFO  L225             Difference]: With dead ends: 56
[2024-11-22 18:42:08,685 INFO  L226             Difference]: Without dead ends: 54
[2024-11-22 18:42:08,686 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 18:42:08,688 INFO  L432           NwaCegarLoop]: 29 mSDtfsCounter, 23 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:08,689 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 38 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:08,702 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2024-11-22 18:42:08,711 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53.
[2024-11-22 18:42:08,712 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 53 states, 33 states have (on average 1.7575757575757576) internal successors, (58), 52 states have internal predecessors, (58), 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)
[2024-11-22 18:42:08,715 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions.
[2024-11-22 18:42:08,715 INFO  L78                 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 3
[2024-11-22 18:42:08,716 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:08,716 INFO  L471      AbstractCegarLoop]: Abstraction has 53 states and 58 transitions.
[2024-11-22 18:42:08,716 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-22 18:42:08,716 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions.
[2024-11-22 18:42:08,716 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-11-22 18:42:08,716 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:08,716 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-11-22 18:42:08,717 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-22 18:42:08,717 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:08,717 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:08,717 INFO  L85        PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times
[2024-11-22 18:42:08,718 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:08,718 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587757594]
[2024-11-22 18:42:08,718 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:08,719 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:08,736 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:08,806 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:08,806 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:08,806 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587757594]
[2024-11-22 18:42:08,806 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587757594] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:08,806 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:08,806 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-22 18:42:08,807 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838467815]
[2024-11-22 18:42:08,807 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:08,808 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 18:42:08,808 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:08,808 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 18:42:08,808 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 18:42:08,808 INFO  L87              Difference]: Start difference. First operand 53 states and 58 transitions. Second operand  has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-22 18:42:08,867 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:08,867 INFO  L93              Difference]: Finished difference Result 49 states and 54 transitions.
[2024-11-22 18:42:08,867 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 18:42:08,868 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2024-11-22 18:42:08,868 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:08,868 INFO  L225             Difference]: With dead ends: 49
[2024-11-22 18:42:08,869 INFO  L226             Difference]: Without dead ends: 49
[2024-11-22 18:42:08,870 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 18:42:08,870 INFO  L432           NwaCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:08,871 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 52 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:08,873 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49 states.
[2024-11-22 18:42:08,876 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48.
[2024-11-22 18:42:08,877 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 48 states, 33 states have (on average 1.606060606060606) internal successors, (53), 47 states have internal predecessors, (53), 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)
[2024-11-22 18:42:08,878 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions.
[2024-11-22 18:42:08,878 INFO  L78                 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 3
[2024-11-22 18:42:08,879 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:08,879 INFO  L471      AbstractCegarLoop]: Abstraction has 48 states and 53 transitions.
[2024-11-22 18:42:08,879 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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)
[2024-11-22 18:42:08,879 INFO  L276                IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions.
[2024-11-22 18:42:08,879 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-22 18:42:08,880 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:08,880 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:08,880 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-22 18:42:08,881 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:08,881 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:08,882 INFO  L85        PathProgramCache]: Analyzing trace with hash 1115897518, now seen corresponding path program 1 times
[2024-11-22 18:42:08,883 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:08,883 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845601024]
[2024-11-22 18:42:08,883 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:08,883 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:08,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:08,974 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:08,974 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:08,974 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845601024]
[2024-11-22 18:42:08,975 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845601024] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:08,975 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:08,975 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 18:42:08,975 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367017270]
[2024-11-22 18:42:08,975 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:08,976 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 18:42:08,976 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:08,997 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 18:42:08,997 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 18:42:08,998 INFO  L87              Difference]: Start difference. First operand 48 states and 53 transitions. Second operand  has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2024-11-22 18:42:09,067 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:09,067 INFO  L93              Difference]: Finished difference Result 53 states and 59 transitions.
[2024-11-22 18:42:09,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 18:42:09,068 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-11-22 18:42:09,068 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:09,068 INFO  L225             Difference]: With dead ends: 53
[2024-11-22 18:42:09,068 INFO  L226             Difference]: Without dead ends: 53
[2024-11-22 18:42:09,069 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-22 18:42:09,069 INFO  L432           NwaCegarLoop]: 19 mSDtfsCounter, 24 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:09,070 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 36 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:09,070 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 53 states.
[2024-11-22 18:42:09,072 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51.
[2024-11-22 18:42:09,072 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 51 states, 37 states have (on average 1.5945945945945945) internal successors, (59), 50 states have internal predecessors, (59), 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)
[2024-11-22 18:42:09,073 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions.
[2024-11-22 18:42:09,073 INFO  L78                 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 10
[2024-11-22 18:42:09,073 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:09,073 INFO  L471      AbstractCegarLoop]: Abstraction has 51 states and 59 transitions.
[2024-11-22 18:42:09,074 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2024-11-22 18:42:09,074 INFO  L276                IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions.
[2024-11-22 18:42:09,074 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-22 18:42:09,074 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:09,074 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:09,074 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-22 18:42:09,075 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:09,075 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:09,075 INFO  L85        PathProgramCache]: Analyzing trace with hash 1115897519, now seen corresponding path program 1 times
[2024-11-22 18:42:09,075 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:09,075 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967897992]
[2024-11-22 18:42:09,075 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:09,076 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:09,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:09,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:09,195 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:09,196 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967897992]
[2024-11-22 18:42:09,196 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967897992] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:09,196 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:09,196 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 18:42:09,196 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660016419]
[2024-11-22 18:42:09,196 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:09,197 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 18:42:09,197 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:09,197 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 18:42:09,198 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 18:42:09,198 INFO  L87              Difference]: Start difference. First operand 51 states and 59 transitions. Second operand  has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2024-11-22 18:42:09,300 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:09,301 INFO  L93              Difference]: Finished difference Result 70 states and 81 transitions.
[2024-11-22 18:42:09,301 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 18:42:09,301 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-11-22 18:42:09,302 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:09,302 INFO  L225             Difference]: With dead ends: 70
[2024-11-22 18:42:09,302 INFO  L226             Difference]: Without dead ends: 70
[2024-11-22 18:42:09,302 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-22 18:42:09,303 INFO  L432           NwaCegarLoop]: 28 mSDtfsCounter, 21 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:09,304 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 60 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:09,304 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 70 states.
[2024-11-22 18:42:09,307 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 67.
[2024-11-22 18:42:09,307 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 53 states have (on average 1.528301886792453) internal successors, (81), 66 states have internal predecessors, (81), 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)
[2024-11-22 18:42:09,308 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 81 transitions.
[2024-11-22 18:42:09,308 INFO  L78                 Accepts]: Start accepts. Automaton has 67 states and 81 transitions. Word has length 10
[2024-11-22 18:42:09,308 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:09,308 INFO  L471      AbstractCegarLoop]: Abstraction has 67 states and 81 transitions.
[2024-11-22 18:42:09,308 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2024-11-22 18:42:09,308 INFO  L276                IsEmpty]: Start isEmpty. Operand 67 states and 81 transitions.
[2024-11-22 18:42:09,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-11-22 18:42:09,309 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:09,309 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:09,309 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-22 18:42:09,309 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:09,310 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:09,310 INFO  L85        PathProgramCache]: Analyzing trace with hash 233083786, now seen corresponding path program 1 times
[2024-11-22 18:42:09,310 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:09,310 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414126134]
[2024-11-22 18:42:09,310 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:09,310 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:09,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:09,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:09,357 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:09,357 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414126134]
[2024-11-22 18:42:09,357 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414126134] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:09,357 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:09,357 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 18:42:09,357 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409096827]
[2024-11-22 18:42:09,357 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:09,358 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 18:42:09,358 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:09,358 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 18:42:09,358 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 18:42:09,358 INFO  L87              Difference]: Start difference. First operand 67 states and 81 transitions. Second operand  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2024-11-22 18:42:09,413 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:09,413 INFO  L93              Difference]: Finished difference Result 83 states and 100 transitions.
[2024-11-22 18:42:09,414 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 18:42:09,414 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11
[2024-11-22 18:42:09,414 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:09,415 INFO  L225             Difference]: With dead ends: 83
[2024-11-22 18:42:09,416 INFO  L226             Difference]: Without dead ends: 83
[2024-11-22 18:42:09,416 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-22 18:42:09,416 INFO  L432           NwaCegarLoop]: 27 mSDtfsCounter, 28 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:09,417 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 65 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 18:42:09,417 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2024-11-22 18:42:09,420 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 67.
[2024-11-22 18:42:09,421 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 67 states, 53 states have (on average 1.490566037735849) internal successors, (79), 66 states have internal predecessors, (79), 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)
[2024-11-22 18:42:09,421 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 79 transitions.
[2024-11-22 18:42:09,421 INFO  L78                 Accepts]: Start accepts. Automaton has 67 states and 79 transitions. Word has length 11
[2024-11-22 18:42:09,421 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:09,422 INFO  L471      AbstractCegarLoop]: Abstraction has 67 states and 79 transitions.
[2024-11-22 18:42:09,422 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2024-11-22 18:42:09,422 INFO  L276                IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions.
[2024-11-22 18:42:09,422 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-11-22 18:42:09,422 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:09,422 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:09,423 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-22 18:42:09,423 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:09,423 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:09,423 INFO  L85        PathProgramCache]: Analyzing trace with hash 683852015, now seen corresponding path program 1 times
[2024-11-22 18:42:09,423 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:09,424 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866812865]
[2024-11-22 18:42:09,424 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:09,424 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:09,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:09,573 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:09,573 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:09,573 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866812865]
[2024-11-22 18:42:09,574 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866812865] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:09,574 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:09,574 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 18:42:09,574 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112165003]
[2024-11-22 18:42:09,574 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:09,574 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 18:42:09,574 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:09,575 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 18:42:09,575 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-22 18:42:09,575 INFO  L87              Difference]: Start difference. First operand 67 states and 79 transitions. Second operand  has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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)
[2024-11-22 18:42:09,632 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:09,632 INFO  L93              Difference]: Finished difference Result 66 states and 78 transitions.
[2024-11-22 18:42:09,633 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 18:42:09,633 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2024-11-22 18:42:09,633 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:09,634 INFO  L225             Difference]: With dead ends: 66
[2024-11-22 18:42:09,634 INFO  L226             Difference]: Without dead ends: 66
[2024-11-22 18:42:09,634 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-22 18:42:09,635 INFO  L432           NwaCegarLoop]: 35 mSDtfsCounter, 8 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:09,635 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 57 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:09,635 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2024-11-22 18:42:09,637 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2024-11-22 18:42:09,638 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66 states, 53 states have (on average 1.471698113207547) internal successors, (78), 65 states have internal predecessors, (78), 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)
[2024-11-22 18:42:09,638 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions.
[2024-11-22 18:42:09,639 INFO  L78                 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 13
[2024-11-22 18:42:09,639 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:09,639 INFO  L471      AbstractCegarLoop]: Abstraction has 66 states and 78 transitions.
[2024-11-22 18:42:09,639 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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)
[2024-11-22 18:42:09,639 INFO  L276                IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions.
[2024-11-22 18:42:09,639 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-22 18:42:09,639 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:09,640 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:09,640 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-22 18:42:09,640 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:09,640 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:09,640 INFO  L85        PathProgramCache]: Analyzing trace with hash -833158411, now seen corresponding path program 1 times
[2024-11-22 18:42:09,640 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:09,641 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607747135]
[2024-11-22 18:42:09,641 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:09,641 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:09,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:09,804 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:09,805 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:09,806 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607747135]
[2024-11-22 18:42:09,806 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607747135] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:09,806 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:09,806 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-22 18:42:09,806 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163076317]
[2024-11-22 18:42:09,806 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:09,807 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 18:42:09,807 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:09,808 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 18:42:09,808 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-22 18:42:09,808 INFO  L87              Difference]: Start difference. First operand 66 states and 78 transitions. Second operand  has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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)
[2024-11-22 18:42:09,938 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:09,938 INFO  L93              Difference]: Finished difference Result 61 states and 69 transitions.
[2024-11-22 18:42:09,938 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-22 18:42:09,939 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2024-11-22 18:42:09,939 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:09,939 INFO  L225             Difference]: With dead ends: 61
[2024-11-22 18:42:09,939 INFO  L226             Difference]: Without dead ends: 61
[2024-11-22 18:42:09,940 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-11-22 18:42:09,941 INFO  L432           NwaCegarLoop]: 32 mSDtfsCounter, 14 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:09,941 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 119 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:09,941 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61 states.
[2024-11-22 18:42:09,943 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61.
[2024-11-22 18:42:09,943 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61 states, 48 states have (on average 1.4375) internal successors, (69), 60 states have internal predecessors, (69), 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)
[2024-11-22 18:42:09,944 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 69 transitions.
[2024-11-22 18:42:09,944 INFO  L78                 Accepts]: Start accepts. Automaton has 61 states and 69 transitions. Word has length 15
[2024-11-22 18:42:09,944 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:09,944 INFO  L471      AbstractCegarLoop]: Abstraction has 61 states and 69 transitions.
[2024-11-22 18:42:09,944 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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)
[2024-11-22 18:42:09,944 INFO  L276                IsEmpty]: Start isEmpty. Operand 61 states and 69 transitions.
[2024-11-22 18:42:09,945 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-22 18:42:09,945 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:09,945 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:09,945 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-22 18:42:09,945 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:09,945 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:09,945 INFO  L85        PathProgramCache]: Analyzing trace with hash -833147426, now seen corresponding path program 1 times
[2024-11-22 18:42:09,945 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:09,945 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781133654]
[2024-11-22 18:42:09,945 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:09,945 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:09,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:09,984 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:09,984 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:09,985 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781133654]
[2024-11-22 18:42:09,985 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781133654] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:09,985 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:09,985 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 18:42:09,985 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591841021]
[2024-11-22 18:42:09,985 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:09,985 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-22 18:42:09,985 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:09,986 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-22 18:42:09,996 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-22 18:42:09,996 INFO  L87              Difference]: Start difference. First operand 61 states and 69 transitions. Second operand  has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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)
[2024-11-22 18:42:10,063 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:10,064 INFO  L93              Difference]: Finished difference Result 75 states and 85 transitions.
[2024-11-22 18:42:10,064 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 18:42:10,064 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2024-11-22 18:42:10,064 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:10,065 INFO  L225             Difference]: With dead ends: 75
[2024-11-22 18:42:10,065 INFO  L226             Difference]: Without dead ends: 75
[2024-11-22 18:42:10,065 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-22 18:42:10,066 INFO  L432           NwaCegarLoop]: 32 mSDtfsCounter, 23 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:10,066 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 68 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:10,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2024-11-22 18:42:10,069 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 70.
[2024-11-22 18:42:10,069 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 70 states, 57 states have (on average 1.4912280701754386) internal successors, (85), 69 states have internal predecessors, (85), 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)
[2024-11-22 18:42:10,069 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 85 transitions.
[2024-11-22 18:42:10,069 INFO  L78                 Accepts]: Start accepts. Automaton has 70 states and 85 transitions. Word has length 15
[2024-11-22 18:42:10,070 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:10,070 INFO  L471      AbstractCegarLoop]: Abstraction has 70 states and 85 transitions.
[2024-11-22 18:42:10,070 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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)
[2024-11-22 18:42:10,070 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 85 transitions.
[2024-11-22 18:42:10,070 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-11-22 18:42:10,070 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:10,071 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:10,071 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-22 18:42:10,071 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:10,071 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:10,071 INFO  L85        PathProgramCache]: Analyzing trace with hash 321145941, now seen corresponding path program 1 times
[2024-11-22 18:42:10,072 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:10,072 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108262767]
[2024-11-22 18:42:10,072 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:10,072 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:10,083 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:10,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:10,246 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:10,246 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108262767]
[2024-11-22 18:42:10,246 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108262767] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 18:42:10,247 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1483439469]
[2024-11-22 18:42:10,247 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:10,247 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:10,247 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:42:10,249 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 18:42:10,254 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-22 18:42:10,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:10,319 INFO  L255         TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 29 conjuncts are in the unsatisfiable core
[2024-11-22 18:42:10,323 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 18:42:10,366 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:10,371 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:10,402 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-22 18:42:10,412 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-22 18:42:10,447 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:10,447 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28
[2024-11-22 18:42:10,462 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28
[2024-11-22 18:42:10,598 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:10,599 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 18:42:10,773 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8
[2024-11-22 18:42:10,778 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12
[2024-11-22 18:42:10,785 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8
[2024-11-22 18:42:10,788 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:10,797 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:10,797 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1483439469] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 18:42:10,798 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 18:42:10,798 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 7] total 14
[2024-11-22 18:42:10,798 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205601869]
[2024-11-22 18:42:10,798 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 18:42:10,798 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-22 18:42:10,798 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:10,799 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-22 18:42:10,799 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182
[2024-11-22 18:42:10,799 INFO  L87              Difference]: Start difference. First operand 70 states and 85 transitions. Second operand  has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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)
[2024-11-22 18:42:11,048 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:11,048 INFO  L93              Difference]: Finished difference Result 82 states and 98 transitions.
[2024-11-22 18:42:11,048 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-22 18:42:11,049 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2024-11-22 18:42:11,049 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:11,053 INFO  L225             Difference]: With dead ends: 82
[2024-11-22 18:42:11,053 INFO  L226             Difference]: Without dead ends: 82
[2024-11-22 18:42:11,054 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342
[2024-11-22 18:42:11,054 INFO  L432           NwaCegarLoop]: 30 mSDtfsCounter, 24 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:11,054 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 261 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:11,055 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2024-11-22 18:42:11,057 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81.
[2024-11-22 18:42:11,058 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 80 states have internal predecessors, (97), 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)
[2024-11-22 18:42:11,058 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 97 transitions.
[2024-11-22 18:42:11,058 INFO  L78                 Accepts]: Start accepts. Automaton has 81 states and 97 transitions. Word has length 18
[2024-11-22 18:42:11,059 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:11,059 INFO  L471      AbstractCegarLoop]: Abstraction has 81 states and 97 transitions.
[2024-11-22 18:42:11,059 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 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)
[2024-11-22 18:42:11,059 INFO  L276                IsEmpty]: Start isEmpty. Operand 81 states and 97 transitions.
[2024-11-22 18:42:11,059 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-22 18:42:11,059 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:11,059 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:11,071 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-22 18:42:11,263 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:11,264 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:11,264 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:11,264 INFO  L85        PathProgramCache]: Analyzing trace with hash 1365588675, now seen corresponding path program 1 times
[2024-11-22 18:42:11,265 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:11,265 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686060833]
[2024-11-22 18:42:11,265 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:11,265 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:11,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:11,322 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:11,322 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:11,322 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686060833]
[2024-11-22 18:42:11,322 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686060833] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 18:42:11,322 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571548940]
[2024-11-22 18:42:11,322 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:11,322 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:11,322 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:42:11,324 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 18:42:11,325 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-22 18:42:11,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:11,384 INFO  L255         TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-22 18:42:11,386 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 18:42:11,414 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2024-11-22 18:42:11,429 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:11,429 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 18:42:11,450 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:11,451 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571548940] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 18:42:11,451 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 18:42:11,451 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5
[2024-11-22 18:42:11,451 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49449453]
[2024-11-22 18:42:11,451 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 18:42:11,452 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-22 18:42:11,452 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:11,452 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-22 18:42:11,452 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-22 18:42:11,452 INFO  L87              Difference]: Start difference. First operand 81 states and 97 transitions. Second operand  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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)
[2024-11-22 18:42:11,540 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:11,540 INFO  L93              Difference]: Finished difference Result 83 states and 98 transitions.
[2024-11-22 18:42:11,540 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-22 18:42:11,541 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19
[2024-11-22 18:42:11,541 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:11,541 INFO  L225             Difference]: With dead ends: 83
[2024-11-22 18:42:11,541 INFO  L226             Difference]: Without dead ends: 72
[2024-11-22 18:42:11,541 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-22 18:42:11,542 INFO  L432           NwaCegarLoop]: 35 mSDtfsCounter, 1 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:11,542 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 109 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:11,542 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2024-11-22 18:42:11,544 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72.
[2024-11-22 18:42:11,544 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 72 states, 59 states have (on average 1.4745762711864407) internal successors, (87), 71 states have internal predecessors, (87), 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)
[2024-11-22 18:42:11,545 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions.
[2024-11-22 18:42:11,545 INFO  L78                 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 19
[2024-11-22 18:42:11,545 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:11,545 INFO  L471      AbstractCegarLoop]: Abstraction has 72 states and 87 transitions.
[2024-11-22 18:42:11,545 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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)
[2024-11-22 18:42:11,545 INFO  L276                IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions.
[2024-11-22 18:42:11,546 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-22 18:42:11,546 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:11,546 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:11,553 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-22 18:42:11,746 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-22 18:42:11,747 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:11,747 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:11,747 INFO  L85        PathProgramCache]: Analyzing trace with hash -190050214, now seen corresponding path program 1 times
[2024-11-22 18:42:11,748 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:11,748 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296382991]
[2024-11-22 18:42:11,748 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:11,748 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:11,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:11,822 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:11,822 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:11,822 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296382991]
[2024-11-22 18:42:11,822 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296382991] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:11,822 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:11,823 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-22 18:42:11,823 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891245790]
[2024-11-22 18:42:11,823 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:11,823 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 18:42:11,823 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:11,823 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 18:42:11,823 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-22 18:42:11,824 INFO  L87              Difference]: Start difference. First operand 72 states and 87 transitions. Second operand  has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-22 18:42:11,873 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:11,873 INFO  L93              Difference]: Finished difference Result 74 states and 81 transitions.
[2024-11-22 18:42:11,874 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-22 18:42:11,874 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19
[2024-11-22 18:42:11,874 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:11,874 INFO  L225             Difference]: With dead ends: 74
[2024-11-22 18:42:11,874 INFO  L226             Difference]: Without dead ends: 74
[2024-11-22 18:42:11,875 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-22 18:42:11,875 INFO  L432           NwaCegarLoop]: 27 mSDtfsCounter, 38 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:11,875 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 65 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 18:42:11,876 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2024-11-22 18:42:11,877 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 68.
[2024-11-22 18:42:11,878 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 68 states, 56 states have (on average 1.3928571428571428) internal successors, (78), 67 states have internal predecessors, (78), 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)
[2024-11-22 18:42:11,878 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions.
[2024-11-22 18:42:11,878 INFO  L78                 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 19
[2024-11-22 18:42:11,878 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:11,878 INFO  L471      AbstractCegarLoop]: Abstraction has 68 states and 78 transitions.
[2024-11-22 18:42:11,878 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 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)
[2024-11-22 18:42:11,878 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions.
[2024-11-22 18:42:11,879 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-22 18:42:11,879 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:11,879 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:11,879 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-22 18:42:11,879 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:11,879 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:11,879 INFO  L85        PathProgramCache]: Analyzing trace with hash -36338646, now seen corresponding path program 1 times
[2024-11-22 18:42:11,879 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:11,880 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049554692]
[2024-11-22 18:42:11,880 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:11,880 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:11,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:12,050 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:12,050 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:12,050 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049554692]
[2024-11-22 18:42:12,051 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049554692] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:12,051 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:12,051 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-22 18:42:12,051 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575707736]
[2024-11-22 18:42:12,051 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:12,051 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-22 18:42:12,051 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:12,052 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-22 18:42:12,052 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-22 18:42:12,052 INFO  L87              Difference]: Start difference. First operand 68 states and 78 transitions. Second operand  has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 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)
[2024-11-22 18:42:12,134 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:12,134 INFO  L93              Difference]: Finished difference Result 73 states and 80 transitions.
[2024-11-22 18:42:12,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-22 18:42:12,135 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24
[2024-11-22 18:42:12,135 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:12,135 INFO  L225             Difference]: With dead ends: 73
[2024-11-22 18:42:12,135 INFO  L226             Difference]: Without dead ends: 73
[2024-11-22 18:42:12,135 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2024-11-22 18:42:12,136 INFO  L432           NwaCegarLoop]: 37 mSDtfsCounter, 18 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:12,136 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 130 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:12,136 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 73 states.
[2024-11-22 18:42:12,137 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 68.
[2024-11-22 18:42:12,138 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 68 states, 56 states have (on average 1.375) internal successors, (77), 67 states have internal predecessors, (77), 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)
[2024-11-22 18:42:12,138 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions.
[2024-11-22 18:42:12,138 INFO  L78                 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 24
[2024-11-22 18:42:12,138 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:12,138 INFO  L471      AbstractCegarLoop]: Abstraction has 68 states and 77 transitions.
[2024-11-22 18:42:12,138 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 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)
[2024-11-22 18:42:12,139 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions.
[2024-11-22 18:42:12,139 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-22 18:42:12,139 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:12,139 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:12,139 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-22 18:42:12,139 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:12,140 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:12,140 INFO  L85        PathProgramCache]: Analyzing trace with hash -1126497925, now seen corresponding path program 1 times
[2024-11-22 18:42:12,140 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:12,140 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882512105]
[2024-11-22 18:42:12,140 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:12,140 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:12,158 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:12,354 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:12,354 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:12,354 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882512105]
[2024-11-22 18:42:12,354 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882512105] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:12,354 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:12,354 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-22 18:42:12,355 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006700363]
[2024-11-22 18:42:12,355 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:12,355 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-22 18:42:12,355 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:12,355 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-22 18:42:12,355 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2024-11-22 18:42:12,356 INFO  L87              Difference]: Start difference. First operand 68 states and 77 transitions. Second operand  has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 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)
[2024-11-22 18:42:12,471 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:12,471 INFO  L93              Difference]: Finished difference Result 72 states and 79 transitions.
[2024-11-22 18:42:12,471 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-22 18:42:12,471 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2024-11-22 18:42:12,472 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:12,472 INFO  L225             Difference]: With dead ends: 72
[2024-11-22 18:42:12,472 INFO  L226             Difference]: Without dead ends: 72
[2024-11-22 18:42:12,472 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110
[2024-11-22 18:42:12,473 INFO  L432           NwaCegarLoop]: 34 mSDtfsCounter, 31 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:12,473 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 117 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:12,473 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2024-11-22 18:42:12,474 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68.
[2024-11-22 18:42:12,474 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 68 states, 56 states have (on average 1.3571428571428572) internal successors, (76), 67 states have internal predecessors, (76), 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)
[2024-11-22 18:42:12,475 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 76 transitions.
[2024-11-22 18:42:12,475 INFO  L78                 Accepts]: Start accepts. Automaton has 68 states and 76 transitions. Word has length 25
[2024-11-22 18:42:12,475 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:12,475 INFO  L471      AbstractCegarLoop]: Abstraction has 68 states and 76 transitions.
[2024-11-22 18:42:12,475 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 8 states have internal predecessors, (25), 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)
[2024-11-22 18:42:12,475 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions.
[2024-11-22 18:42:12,476 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-22 18:42:12,476 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:12,476 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:12,476 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-22 18:42:12,476 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:12,476 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:12,476 INFO  L85        PathProgramCache]: Analyzing trace with hash -561697204, now seen corresponding path program 1 times
[2024-11-22 18:42:12,476 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:12,476 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430424913]
[2024-11-22 18:42:12,476 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:12,477 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:12,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:12,696 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:12,697 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:12,697 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430424913]
[2024-11-22 18:42:12,697 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430424913] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:12,697 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:12,697 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-22 18:42:12,697 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259130168]
[2024-11-22 18:42:12,698 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:12,698 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-22 18:42:12,698 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:12,699 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-22 18:42:12,699 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-22 18:42:12,699 INFO  L87              Difference]: Start difference. First operand 68 states and 76 transitions. Second operand  has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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)
[2024-11-22 18:42:12,818 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:12,819 INFO  L93              Difference]: Finished difference Result 68 states and 75 transitions.
[2024-11-22 18:42:12,819 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-22 18:42:12,819 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2024-11-22 18:42:12,819 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:12,820 INFO  L225             Difference]: With dead ends: 68
[2024-11-22 18:42:12,820 INFO  L226             Difference]: Without dead ends: 68
[2024-11-22 18:42:12,820 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90
[2024-11-22 18:42:12,820 INFO  L432           NwaCegarLoop]: 26 mSDtfsCounter, 7 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:12,821 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 91 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:12,821 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2024-11-22 18:42:12,822 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68.
[2024-11-22 18:42:12,823 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 68 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 67 states have internal predecessors, (75), 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)
[2024-11-22 18:42:12,823 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions.
[2024-11-22 18:42:12,823 INFO  L78                 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 26
[2024-11-22 18:42:12,823 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:12,823 INFO  L471      AbstractCegarLoop]: Abstraction has 68 states and 75 transitions.
[2024-11-22 18:42:12,824 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 4.333333333333333) internal successors, (26), 7 states have internal predecessors, (26), 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)
[2024-11-22 18:42:12,824 INFO  L276                IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions.
[2024-11-22 18:42:12,824 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-22 18:42:12,824 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:12,824 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:12,825 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-22 18:42:12,825 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:12,825 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:12,825 INFO  L85        PathProgramCache]: Analyzing trace with hash 1337846250, now seen corresponding path program 1 times
[2024-11-22 18:42:12,825 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:12,825 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827407247]
[2024-11-22 18:42:12,826 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:12,826 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:12,841 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:13,024 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:13,024 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:13,025 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827407247]
[2024-11-22 18:42:13,025 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827407247] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 18:42:13,025 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805543667]
[2024-11-22 18:42:13,025 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:13,025 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:13,025 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:42:13,026 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 18:42:13,031 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-22 18:42:13,102 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:13,103 INFO  L255         TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 30 conjuncts are in the unsatisfiable core
[2024-11-22 18:42:13,105 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 18:42:13,107 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-22 18:42:13,122 INFO  L349             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-22 18:42:13,123 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-22 18:42:13,139 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:13,165 INFO  L349             Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-11-22 18:42:13,166 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33
[2024-11-22 18:42:13,195 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24
[2024-11-22 18:42:13,280 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:13,280 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 16
[2024-11-22 18:42:13,300 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-22 18:42:13,303 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:13,303 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 18:42:13,499 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:13,499 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 49
[2024-11-22 18:42:13,548 WARN  L851   $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~list~0#1.offset_40| Int) (v_ArrVal_487 (Array Int Int))) (or (not (= (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_487) |c_ULTIMATE.start_main_~y~0#1.base|) |v_ULTIMATE.start_main_~list~0#1.offset_40|) |c_ULTIMATE.start_main_~y~0#1.base|)) (< |v_ULTIMATE.start_main_~list~0#1.offset_40| 0) (< |c_ULTIMATE.start_main_~y~0#1.offset| |v_ULTIMATE.start_main_~list~0#1.offset_40|))) (forall ((v_prenex_1 Int) (v_prenex_2 (Array Int Int))) (or (< v_prenex_1 0) (= |c_ULTIMATE.start_main_~list~0#1.base| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_2) |c_ULTIMATE.start_main_~y~0#1.base|) v_prenex_1)) (< |c_ULTIMATE.start_main_~y~0#1.offset| v_prenex_1)))) is different from false
[2024-11-22 18:42:13,558 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:13,558 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19
[2024-11-22 18:42:13,565 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:13,566 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30
[2024-11-22 18:42:13,569 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2024-11-22 18:42:13,584 INFO  L349             Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2024-11-22 18:42:13,584 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 1
[2024-11-22 18:42:13,636 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:13,636 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805543667] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 18:42:13,636 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 18:42:13,636 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 23
[2024-11-22 18:42:13,637 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315171027]
[2024-11-22 18:42:13,637 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 18:42:13,637 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-22 18:42:13,637 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:13,637 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-22 18:42:13,638 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=441, Unknown=1, NotChecked=42, Total=552
[2024-11-22 18:42:13,638 INFO  L87              Difference]: Start difference. First operand 68 states and 75 transitions. Second operand  has 24 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 24 states have internal predecessors, (56), 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)
[2024-11-22 18:42:14,282 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:14,282 INFO  L93              Difference]: Finished difference Result 81 states and 90 transitions.
[2024-11-22 18:42:14,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. 
[2024-11-22 18:42:14,282 INFO  L78                 Accepts]: Start accepts. Automaton has  has 24 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 24 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2024-11-22 18:42:14,283 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:14,283 INFO  L225             Difference]: With dead ends: 81
[2024-11-22 18:42:14,283 INFO  L226             Difference]: Without dead ends: 81
[2024-11-22 18:42:14,284 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=316, Invalid=1327, Unknown=1, NotChecked=78, Total=1722
[2024-11-22 18:42:14,284 INFO  L432           NwaCegarLoop]: 17 mSDtfsCounter, 85 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 84 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:14,284 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 166 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 451 Invalid, 0 Unknown, 84 Unchecked, 0.3s Time]
[2024-11-22 18:42:14,285 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81 states.
[2024-11-22 18:42:14,285 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73.
[2024-11-22 18:42:14,286 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 73 states, 61 states have (on average 1.360655737704918) internal successors, (83), 72 states have internal predecessors, (83), 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)
[2024-11-22 18:42:14,286 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions.
[2024-11-22 18:42:14,286 INFO  L78                 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 26
[2024-11-22 18:42:14,286 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:14,286 INFO  L471      AbstractCegarLoop]: Abstraction has 73 states and 83 transitions.
[2024-11-22 18:42:14,286 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 24 states, 23 states have (on average 2.4347826086956523) internal successors, (56), 24 states have internal predecessors, (56), 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)
[2024-11-22 18:42:14,286 INFO  L276                IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions.
[2024-11-22 18:42:14,287 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-22 18:42:14,287 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:14,287 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:14,294 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-22 18:42:14,491 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:14,492 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:14,492 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:14,493 INFO  L85        PathProgramCache]: Analyzing trace with hash 1337846251, now seen corresponding path program 1 times
[2024-11-22 18:42:14,493 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:14,493 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613004283]
[2024-11-22 18:42:14,493 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:14,493 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:14,528 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:14,980 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:14,984 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:14,984 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613004283]
[2024-11-22 18:42:14,984 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613004283] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 18:42:14,984 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838414599]
[2024-11-22 18:42:14,984 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:14,985 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:14,985 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:42:14,986 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 18:42:14,987 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-22 18:42:15,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:15,097 INFO  L255         TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 41 conjuncts are in the unsatisfiable core
[2024-11-22 18:42:15,105 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 18:42:15,115 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-22 18:42:15,123 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-22 18:42:15,185 INFO  L349             Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-22 18:42:15,186 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-22 18:42:15,200 INFO  L349             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-22 18:42:15,200 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-22 18:42:15,240 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:15,246 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:15,279 INFO  L349             Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-11-22 18:42:15,280 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45
[2024-11-22 18:42:15,286 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11
[2024-11-22 18:42:15,367 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-11-22 18:42:15,373 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24
[2024-11-22 18:42:15,469 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16
[2024-11-22 18:42:15,473 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-22 18:42:15,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:15,498 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 18:42:15,794 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:15,795 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2024-11-22 18:42:15,804 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:15,805 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 34
[2024-11-22 18:42:15,813 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2024-11-22 18:42:15,834 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:15,835 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 38
[2024-11-22 18:42:15,840 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:15,840 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30
[2024-11-22 18:42:15,842 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:15,844 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:15,845 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19
[2024-11-22 18:42:15,847 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:15,849 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:15,850 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12
[2024-11-22 18:42:15,983 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:15,983 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [838414599] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 18:42:15,983 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 18:42:15,984 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 23
[2024-11-22 18:42:15,984 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488434712]
[2024-11-22 18:42:15,984 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 18:42:15,984 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-22 18:42:15,984 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:15,984 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-22 18:42:15,985 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=478, Unknown=3, NotChecked=0, Total=552
[2024-11-22 18:42:15,985 INFO  L87              Difference]: Start difference. First operand 73 states and 83 transitions. Second operand  has 24 states, 23 states have (on average 2.782608695652174) internal successors, (64), 24 states have internal predecessors, (64), 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)
[2024-11-22 18:42:16,570 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:16,571 INFO  L93              Difference]: Finished difference Result 92 states and 104 transitions.
[2024-11-22 18:42:16,571 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2024-11-22 18:42:16,571 INFO  L78                 Accepts]: Start accepts. Automaton has  has 24 states, 23 states have (on average 2.782608695652174) internal successors, (64), 24 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2024-11-22 18:42:16,571 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:16,572 INFO  L225             Difference]: With dead ends: 92
[2024-11-22 18:42:16,572 INFO  L226             Difference]: Without dead ends: 92
[2024-11-22 18:42:16,572 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=245, Invalid=1012, Unknown=3, NotChecked=0, Total=1260
[2024-11-22 18:42:16,573 INFO  L432           NwaCegarLoop]: 24 mSDtfsCounter, 93 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:16,573 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 241 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-22 18:42:16,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 92 states.
[2024-11-22 18:42:16,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 87.
[2024-11-22 18:42:16,575 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 87 states, 75 states have (on average 1.36) internal successors, (102), 86 states have internal predecessors, (102), 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)
[2024-11-22 18:42:16,575 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions.
[2024-11-22 18:42:16,575 INFO  L78                 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 26
[2024-11-22 18:42:16,576 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:16,576 INFO  L471      AbstractCegarLoop]: Abstraction has 87 states and 102 transitions.
[2024-11-22 18:42:16,576 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 24 states, 23 states have (on average 2.782608695652174) internal successors, (64), 24 states have internal predecessors, (64), 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)
[2024-11-22 18:42:16,576 INFO  L276                IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions.
[2024-11-22 18:42:16,576 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-11-22 18:42:16,576 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:16,577 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:16,587 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-22 18:42:16,778 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-11-22 18:42:16,778 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:16,778 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:16,778 INFO  L85        PathProgramCache]: Analyzing trace with hash 94520065, now seen corresponding path program 1 times
[2024-11-22 18:42:16,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:16,779 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869816919]
[2024-11-22 18:42:16,779 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:16,779 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:16,801 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:17,074 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:17,074 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:17,074 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869816919]
[2024-11-22 18:42:17,074 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869816919] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 18:42:17,074 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673780828]
[2024-11-22 18:42:17,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:17,074 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:17,075 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:42:17,078 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 18:42:17,079 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-22 18:42:17,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:17,178 INFO  L255         TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-11-22 18:42:17,179 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 18:42:17,205 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:17,238 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:17,239 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 15
[2024-11-22 18:42:17,264 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:17,265 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 18:42:17,265 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673780828] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:17,265 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 18:42:17,265 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18
[2024-11-22 18:42:17,265 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480799477]
[2024-11-22 18:42:17,265 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:17,266 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-22 18:42:17,266 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:17,266 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-22 18:42:17,266 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306
[2024-11-22 18:42:17,267 INFO  L87              Difference]: Start difference. First operand 87 states and 102 transitions. Second operand  has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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)
[2024-11-22 18:42:17,397 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:17,397 INFO  L93              Difference]: Finished difference Result 84 states and 96 transitions.
[2024-11-22 18:42:17,397 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-22 18:42:17,397 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27
[2024-11-22 18:42:17,398 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:17,398 INFO  L225             Difference]: With dead ends: 84
[2024-11-22 18:42:17,398 INFO  L226             Difference]: Without dead ends: 83
[2024-11-22 18:42:17,398 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506
[2024-11-22 18:42:17,399 INFO  L432           NwaCegarLoop]: 38 mSDtfsCounter, 18 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:17,399 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 189 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:17,399 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 83 states.
[2024-11-22 18:42:17,400 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 80.
[2024-11-22 18:42:17,400 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 80 states, 68 states have (on average 1.338235294117647) internal successors, (91), 79 states have internal predecessors, (91), 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)
[2024-11-22 18:42:17,400 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 91 transitions.
[2024-11-22 18:42:17,400 INFO  L78                 Accepts]: Start accepts. Automaton has 80 states and 91 transitions. Word has length 27
[2024-11-22 18:42:17,401 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:17,401 INFO  L471      AbstractCegarLoop]: Abstraction has 80 states and 91 transitions.
[2024-11-22 18:42:17,401 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 3.375) internal successors, (27), 8 states have internal predecessors, (27), 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)
[2024-11-22 18:42:17,401 INFO  L276                IsEmpty]: Start isEmpty. Operand 80 states and 91 transitions.
[2024-11-22 18:42:17,401 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-11-22 18:42:17,401 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:17,401 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:17,408 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-22 18:42:17,602 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-22 18:42:17,602 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:17,602 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:17,602 INFO  L85        PathProgramCache]: Analyzing trace with hash -1476440114, now seen corresponding path program 1 times
[2024-11-22 18:42:17,602 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:17,602 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819580115]
[2024-11-22 18:42:17,602 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:17,603 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:17,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:17,729 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:17,730 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:17,730 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819580115]
[2024-11-22 18:42:17,730 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819580115] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 18:42:17,730 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165511113]
[2024-11-22 18:42:17,730 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:17,730 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:17,730 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:42:17,733 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 18:42:17,734 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-22 18:42:17,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:17,864 INFO  L255         TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 27 conjuncts are in the unsatisfiable core
[2024-11-22 18:42:17,866 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 18:42:17,871 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-22 18:42:17,903 INFO  L349             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-22 18:42:17,903 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-22 18:42:17,920 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:17,941 INFO  L349             Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-11-22 18:42:17,941 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 32
[2024-11-22 18:42:17,966 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23
[2024-11-22 18:42:18,020 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:18,020 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 15
[2024-11-22 18:42:18,027 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:18,027 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 18:42:18,125 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:18,126 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 20
[2024-11-22 18:42:18,131 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:18,132 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 33
[2024-11-22 18:42:18,135 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18
[2024-11-22 18:42:18,225 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:18,225 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [165511113] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 18:42:18,225 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 18:42:18,225 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 10] total 22
[2024-11-22 18:42:18,225 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797902285]
[2024-11-22 18:42:18,225 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 18:42:18,225 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2024-11-22 18:42:18,226 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:18,226 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2024-11-22 18:42:18,226 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=392, Unknown=4, NotChecked=0, Total=462
[2024-11-22 18:42:18,226 INFO  L87              Difference]: Start difference. First operand 80 states and 91 transitions. Second operand  has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 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)
[2024-11-22 18:42:18,755 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:18,755 INFO  L93              Difference]: Finished difference Result 108 states and 125 transitions.
[2024-11-22 18:42:18,756 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2024-11-22 18:42:18,756 INFO  L78                 Accepts]: Start accepts. Automaton has  has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27
[2024-11-22 18:42:18,756 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:18,756 INFO  L225             Difference]: With dead ends: 108
[2024-11-22 18:42:18,756 INFO  L226             Difference]: Without dead ends: 108
[2024-11-22 18:42:18,757 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=331, Invalid=1305, Unknown=4, NotChecked=0, Total=1640
[2024-11-22 18:42:18,757 INFO  L432           NwaCegarLoop]: 16 mSDtfsCounter, 85 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:18,757 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 195 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-22 18:42:18,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 108 states.
[2024-11-22 18:42:18,759 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 82.
[2024-11-22 18:42:18,759 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 81 states have internal predecessors, (93), 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)
[2024-11-22 18:42:18,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions.
[2024-11-22 18:42:18,759 INFO  L78                 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 27
[2024-11-22 18:42:18,759 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:18,760 INFO  L471      AbstractCegarLoop]: Abstraction has 82 states and 93 transitions.
[2024-11-22 18:42:18,760 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 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)
[2024-11-22 18:42:18,760 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions.
[2024-11-22 18:42:18,760 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2024-11-22 18:42:18,760 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:18,760 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:18,771 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-22 18:42:18,964 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2024-11-22 18:42:18,965 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:18,965 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:18,965 INFO  L85        PathProgramCache]: Analyzing trace with hash -328711838, now seen corresponding path program 1 times
[2024-11-22 18:42:18,965 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:18,965 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482287234]
[2024-11-22 18:42:18,966 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:18,966 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:18,983 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:19,216 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:19,217 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:19,217 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482287234]
[2024-11-22 18:42:19,217 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482287234] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 18:42:19,217 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 18:42:19,217 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-22 18:42:19,217 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608136342]
[2024-11-22 18:42:19,217 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 18:42:19,217 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-22 18:42:19,217 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:19,218 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-22 18:42:19,218 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72
[2024-11-22 18:42:19,218 INFO  L87              Difference]: Start difference. First operand 82 states and 93 transitions. Second operand  has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 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)
[2024-11-22 18:42:19,334 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:19,334 INFO  L93              Difference]: Finished difference Result 85 states and 94 transitions.
[2024-11-22 18:42:19,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-11-22 18:42:19,334 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29
[2024-11-22 18:42:19,334 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:19,335 INFO  L225             Difference]: With dead ends: 85
[2024-11-22 18:42:19,335 INFO  L226             Difference]: Without dead ends: 85
[2024-11-22 18:42:19,335 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2024-11-22 18:42:19,335 INFO  L432           NwaCegarLoop]: 28 mSDtfsCounter, 29 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:19,336 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 82 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-22 18:42:19,337 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 85 states.
[2024-11-22 18:42:19,337 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 82.
[2024-11-22 18:42:19,338 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 82 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 81 states have internal predecessors, (92), 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)
[2024-11-22 18:42:19,338 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions.
[2024-11-22 18:42:19,338 INFO  L78                 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 29
[2024-11-22 18:42:19,338 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:19,338 INFO  L471      AbstractCegarLoop]: Abstraction has 82 states and 92 transitions.
[2024-11-22 18:42:19,338 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 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)
[2024-11-22 18:42:19,338 INFO  L276                IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions.
[2024-11-22 18:42:19,339 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-22 18:42:19,339 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:19,339 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:19,339 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-22 18:42:19,339 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:19,339 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:19,339 INFO  L85        PathProgramCache]: Analyzing trace with hash 1935506277, now seen corresponding path program 1 times
[2024-11-22 18:42:19,339 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:19,339 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107075031]
[2024-11-22 18:42:19,340 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:19,340 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:19,356 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:19,804 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:19,804 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:19,805 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107075031]
[2024-11-22 18:42:19,805 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107075031] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 18:42:19,805 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197452192]
[2024-11-22 18:42:19,805 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:19,805 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:19,805 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:42:19,807 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 18:42:19,808 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-22 18:42:19,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:19,895 INFO  L255         TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 40 conjuncts are in the unsatisfiable core
[2024-11-22 18:42:19,897 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 18:42:19,900 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-22 18:42:19,922 INFO  L349             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-22 18:42:19,922 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-22 18:42:19,928 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:19,939 INFO  L349             Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-11-22 18:42:19,939 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33
[2024-11-22 18:42:19,964 INFO  L349             Elim1Store]: treesize reduction 32, result has 36.0 percent of original size
[2024-11-22 18:42:19,964 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 24
[2024-11-22 18:42:19,971 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25
[2024-11-22 18:42:20,178 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:20,178 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 38
[2024-11-22 18:42:20,280 INFO  L349             Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-22 18:42:20,283 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-22 18:42:20,329 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-22 18:42:20,332 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:20,333 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 18:42:20,865 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:20,865 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 406 treesize of output 456
[2024-11-22 18:42:21,141 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:21,142 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19
[2024-11-22 18:42:21,148 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:21,148 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30
[2024-11-22 18:42:21,151 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2024-11-22 18:42:21,163 INFO  L349             Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2024-11-22 18:42:21,163 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 1
[2024-11-22 18:42:21,167 INFO  L349             Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2024-11-22 18:42:21,168 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 1
[2024-11-22 18:42:21,228 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:21,228 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [197452192] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 18:42:21,228 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 18:42:21,229 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 17] total 37
[2024-11-22 18:42:21,229 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885126201]
[2024-11-22 18:42:21,229 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 18:42:21,229 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 38 states
[2024-11-22 18:42:21,229 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:21,230 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants.
[2024-11-22 18:42:21,230 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1243, Unknown=0, NotChecked=0, Total=1406
[2024-11-22 18:42:21,230 INFO  L87              Difference]: Start difference. First operand 82 states and 92 transitions. Second operand  has 38 states, 37 states have (on average 2.027027027027027) internal successors, (75), 38 states have internal predecessors, (75), 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)
[2024-11-22 18:42:21,883 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:21,883 INFO  L93              Difference]: Finished difference Result 89 states and 99 transitions.
[2024-11-22 18:42:21,883 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2024-11-22 18:42:21,884 INFO  L78                 Accepts]: Start accepts. Automaton has  has 38 states, 37 states have (on average 2.027027027027027) internal successors, (75), 38 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31
[2024-11-22 18:42:21,884 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:21,884 INFO  L225             Difference]: With dead ends: 89
[2024-11-22 18:42:21,884 INFO  L226             Difference]: Without dead ends: 89
[2024-11-22 18:42:21,885 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=426, Invalid=2330, Unknown=0, NotChecked=0, Total=2756
[2024-11-22 18:42:21,885 INFO  L432           NwaCegarLoop]: 18 mSDtfsCounter, 88 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:21,885 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 220 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-22 18:42:21,885 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89 states.
[2024-11-22 18:42:21,886 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85.
[2024-11-22 18:42:21,886 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 85 states, 73 states have (on average 1.3287671232876712) internal successors, (97), 84 states have internal predecessors, (97), 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)
[2024-11-22 18:42:21,887 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 97 transitions.
[2024-11-22 18:42:21,887 INFO  L78                 Accepts]: Start accepts. Automaton has 85 states and 97 transitions. Word has length 31
[2024-11-22 18:42:21,887 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:21,887 INFO  L471      AbstractCegarLoop]: Abstraction has 85 states and 97 transitions.
[2024-11-22 18:42:21,887 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 38 states, 37 states have (on average 2.027027027027027) internal successors, (75), 38 states have internal predecessors, (75), 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)
[2024-11-22 18:42:21,887 INFO  L276                IsEmpty]: Start isEmpty. Operand 85 states and 97 transitions.
[2024-11-22 18:42:21,887 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-22 18:42:21,887 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:21,888 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:21,894 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-22 18:42:22,091 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:22,092 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:22,092 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:22,092 INFO  L85        PathProgramCache]: Analyzing trace with hash 1935506278, now seen corresponding path program 1 times
[2024-11-22 18:42:22,093 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:22,093 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847938906]
[2024-11-22 18:42:22,093 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:22,093 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:22,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:22,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:22,369 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:22,369 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847938906]
[2024-11-22 18:42:22,369 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847938906] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 18:42:22,369 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [218357415]
[2024-11-22 18:42:22,369 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:22,369 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:22,369 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:42:22,371 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 18:42:22,372 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-22 18:42:22,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:22,460 INFO  L255         TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 58 conjuncts are in the unsatisfiable core
[2024-11-22 18:42:22,462 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 18:42:22,466 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1
[2024-11-22 18:42:22,467 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-22 18:42:22,498 INFO  L349             Elim1Store]: treesize reduction 13, result has 40.9 percent of original size
[2024-11-22 18:42:22,498 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13
[2024-11-22 18:42:22,507 INFO  L349             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-22 18:42:22,507 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-22 18:42:22,525 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:22,531 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:22,557 INFO  L349             Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-11-22 18:42:22,557 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 52
[2024-11-22 18:42:22,563 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11
[2024-11-22 18:42:22,595 INFO  L349             Elim1Store]: treesize reduction 4, result has 66.7 percent of original size
[2024-11-22 18:42:22,596 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15
[2024-11-22 18:42:22,600 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13
[2024-11-22 18:42:22,624 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-11-22 18:42:22,627 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25
[2024-11-22 18:42:22,727 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3
[2024-11-22 18:42:22,793 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:22,793 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 17
[2024-11-22 18:42:22,810 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:22,810 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 18:42:23,127 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:23,128 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 88
[2024-11-22 18:42:23,212 WARN  L851   $PredicateComparison]: unable to prove that (and (forall ((v_prenex_6 Int) (v_ArrVal_992 Int) (v_ArrVal_991 (Array Int Int)) (v_prenex_8 Int) (v_prenex_7 (Array Int Int))) (or (= |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_6) (< (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~list~0#1.base| v_prenex_7) |c_ULTIMATE.start_main_~y~0#1.base|) v_prenex_8) 3) (select (store |c_#length| v_prenex_6 v_ArrVal_992) (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_991) |c_ULTIMATE.start_main_~y~0#1.base|) v_prenex_8))) (< v_prenex_8 0) (< |c_ULTIMATE.start_main_~y~0#1.offset| v_prenex_8))) (forall ((v_ArrVal_990 (Array Int Int)) (|v_ULTIMATE.start_main_~list~0#1.offset_67| Int)) (or (< 0 (+ (select (select (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~list~0#1.base| v_ArrVal_990) |c_ULTIMATE.start_main_~y~0#1.base|) |v_ULTIMATE.start_main_~list~0#1.offset_67|) 1)) (< |c_ULTIMATE.start_main_~y~0#1.offset| |v_ULTIMATE.start_main_~list~0#1.offset_67|) (< |v_ULTIMATE.start_main_~list~0#1.offset_67| 0)))) is different from false
[2024-11-22 18:42:23,222 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:23,222 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 21
[2024-11-22 18:42:23,228 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:23,228 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 34
[2024-11-22 18:42:23,231 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2024-11-22 18:42:23,246 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:23,246 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 41
[2024-11-22 18:42:23,248 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:23,250 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:23,250 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30
[2024-11-22 18:42:23,255 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:23,255 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26
[2024-11-22 18:42:23,270 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:23,272 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:23,273 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15
[2024-11-22 18:42:23,413 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:23,413 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [218357415] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 18:42:23,413 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 18:42:23,413 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13, 11] total 30
[2024-11-22 18:42:23,413 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741856908]
[2024-11-22 18:42:23,414 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 18:42:23,414 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 31 states
[2024-11-22 18:42:23,414 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:42:23,414 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants.
[2024-11-22 18:42:23,415 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=772, Unknown=1, NotChecked=56, Total=930
[2024-11-22 18:42:23,415 INFO  L87              Difference]: Start difference. First operand 85 states and 97 transitions. Second operand  has 31 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 31 states have internal predecessors, (79), 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)
[2024-11-22 18:42:23,987 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:42:23,987 INFO  L93              Difference]: Finished difference Result 97 states and 108 transitions.
[2024-11-22 18:42:23,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2024-11-22 18:42:23,988 INFO  L78                 Accepts]: Start accepts. Automaton has  has 31 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 31 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31
[2024-11-22 18:42:23,988 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:42:23,988 INFO  L225             Difference]: With dead ends: 97
[2024-11-22 18:42:23,988 INFO  L226             Difference]: Without dead ends: 97
[2024-11-22 18:42:23,989 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=301, Invalid=1508, Unknown=1, NotChecked=82, Total=1892
[2024-11-22 18:42:23,990 INFO  L432           NwaCegarLoop]: 23 mSDtfsCounter, 115 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 68 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-22 18:42:23,990 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 205 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 420 Invalid, 0 Unknown, 68 Unchecked, 0.2s Time]
[2024-11-22 18:42:23,990 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 97 states.
[2024-11-22 18:42:23,991 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 78.
[2024-11-22 18:42:23,991 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 78 states, 66 states have (on average 1.3333333333333333) internal successors, (88), 77 states have internal predecessors, (88), 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)
[2024-11-22 18:42:23,991 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 88 transitions.
[2024-11-22 18:42:23,991 INFO  L78                 Accepts]: Start accepts. Automaton has 78 states and 88 transitions. Word has length 31
[2024-11-22 18:42:23,991 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:42:23,992 INFO  L471      AbstractCegarLoop]: Abstraction has 78 states and 88 transitions.
[2024-11-22 18:42:23,992 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 31 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 31 states have internal predecessors, (79), 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)
[2024-11-22 18:42:23,992 INFO  L276                IsEmpty]: Start isEmpty. Operand 78 states and 88 transitions.
[2024-11-22 18:42:23,992 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-22 18:42:23,992 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:42:23,992 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:42:24,000 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-11-22 18:42:24,196 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20
[2024-11-22 18:42:24,197 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:42:24,197 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:42:24,197 INFO  L85        PathProgramCache]: Analyzing trace with hash 678559033, now seen corresponding path program 1 times
[2024-11-22 18:42:24,197 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:42:24,197 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919339617]
[2024-11-22 18:42:24,197 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:24,197 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:42:24,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:24,708 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:24,708 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:42:24,708 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919339617]
[2024-11-22 18:42:24,708 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919339617] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 18:42:24,708 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934106334]
[2024-11-22 18:42:24,709 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:42:24,709 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:42:24,709 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:42:24,711 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 18:42:24,715 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-22 18:42:24,801 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:42:24,805 INFO  L255         TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 49 conjuncts are in the unsatisfiable core
[2024-11-22 18:42:24,810 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 18:42:24,813 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-22 18:42:24,823 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:24,826 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:42:24,862 INFO  L349             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-22 18:42:24,862 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-22 18:42:24,890 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-22 18:42:24,907 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2024-11-22 18:42:24,962 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:24,977 INFO  L349             Elim1Store]: treesize reduction 29, result has 19.4 percent of original size
[2024-11-22 18:42:24,978 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 60
[2024-11-22 18:42:24,987 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:24,992 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 25
[2024-11-22 18:42:25,135 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:25,171 INFO  L349             Elim1Store]: treesize reduction 31, result has 18.4 percent of original size
[2024-11-22 18:42:25,172 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 51
[2024-11-22 18:42:25,194 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25
[2024-11-22 18:42:25,752 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:25,753 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:25,753 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:25,754 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:25,760 INFO  L349             Elim1Store]: treesize reduction 22, result has 12.0 percent of original size
[2024-11-22 18:42:25,760 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 71 treesize of output 33
[2024-11-22 18:42:25,768 INFO  L349             Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-22 18:42:25,768 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 16
[2024-11-22 18:42:25,772 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:42:25,772 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 18:42:55,582 WARN  L851   $PredicateComparison]: unable to prove that (let ((.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (and (forall ((|v_ULTIMATE.start_main_~y~0#1.base_84| Int)) (or (forall ((v_ArrVal_1083 Int) (v_ArrVal_1086 Int) (|v_ULTIMATE.start_main_~list~0#1.offset_75| Int) (v_ArrVal_1081 Int)) (let ((.cse4 (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~y~0#1.base_84| (store (select |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~y~0#1.base_84|) 0 v_ArrVal_1081)))) (let ((.cse0 (store (select .cse4 |c_ULTIMATE.start_main_~list~0#1.base|) .cse3 v_ArrVal_1083))) (let ((.cse1 (select (store .cse4 |c_ULTIMATE.start_main_~list~0#1.base| .cse0) |v_ULTIMATE.start_main_~y~0#1.base_84|))) (or (= (+ 12 |v_ULTIMATE.start_main_~list~0#1.offset_75|) (select (select (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_main_~list~0#1.base| .cse0) |v_ULTIMATE.start_main_~y~0#1.base_84| (store .cse1 8 v_ArrVal_1086)) (select (select (let ((.cse2 (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~y~0#1.base_84| (store (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~y~0#1.base_84|) 0 |c_ULTIMATE.start_main_~list~0#1.base|)))) (store .cse2 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse2 |c_ULTIMATE.start_main_~list~0#1.base|) .cse3 |v_ULTIMATE.start_main_~y~0#1.base_84|))) |v_ULTIMATE.start_main_~y~0#1.base_84|) 0)) (+ 8 |v_ULTIMATE.start_main_~list~0#1.offset_75|))) (< (select .cse1 0) |v_ULTIMATE.start_main_~list~0#1.offset_75|) (< |v_ULTIMATE.start_main_~list~0#1.offset_75| 0) (< |c_ULTIMATE.start_main_~list~0#1.offset| v_ArrVal_1081)))))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~y~0#1.base_84|) 0)))) (forall ((|v_ULTIMATE.start_main_~y~0#1.base_84| Int)) (or (forall ((v_ArrVal_1083 Int) (|v_ULTIMATE.start_main_~list~0#1.offset_75| Int) (v_ArrVal_1081 Int)) (or (< (select (select (let ((.cse5 (store |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~y~0#1.base_84| (store (select |c_#memory_$Pointer$#1.offset| |v_ULTIMATE.start_main_~y~0#1.base_84|) 0 v_ArrVal_1081)))) (store .cse5 |c_ULTIMATE.start_main_~list~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~list~0#1.base|) .cse3 v_ArrVal_1083))) |v_ULTIMATE.start_main_~y~0#1.base_84|) 0) |v_ULTIMATE.start_main_~list~0#1.offset_75|) (let ((.cse9 (store |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~y~0#1.base_84| (store (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_main_~y~0#1.base_84|) 0 |c_ULTIMATE.start_main_~list~0#1.base|)))) (let ((.cse6 (store (select .cse9 |c_ULTIMATE.start_main_~list~0#1.base|) .cse3 |v_ULTIMATE.start_main_~y~0#1.base_84|))) (let ((.cse7 (select (store .cse9 |c_ULTIMATE.start_main_~list~0#1.base| .cse6) |v_ULTIMATE.start_main_~y~0#1.base_84|))) (let ((.cse8 (select .cse7 0))) (= (select (select (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_~list~0#1.base| .cse6) |v_ULTIMATE.start_main_~y~0#1.base_84| (store .cse7 8 |v_ULTIMATE.start_main_~y~0#1.base_84|)) .cse8) (+ 8 |v_ULTIMATE.start_main_~list~0#1.offset_75|)) .cse8))))) (< |v_ULTIMATE.start_main_~list~0#1.offset_75| 0) (< |c_ULTIMATE.start_main_~list~0#1.offset| v_ArrVal_1081))) (not (= (select |c_#valid| |v_ULTIMATE.start_main_~y~0#1.base_84|) 0)))))) is different from false
[2024-11-22 18:42:55,952 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:55,982 INFO  L349             Elim1Store]: treesize reduction 31, result has 40.4 percent of original size
[2024-11-22 18:42:55,982 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 45
[2024-11-22 18:42:56,001 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:42:56,001 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 52
[2024-11-22 18:42:56,011 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:56,011 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:56,040 INFO  L349             Elim1Store]: treesize reduction 54, result has 47.6 percent of original size
[2024-11-22 18:42:56,040 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 1327 treesize of output 494
[2024-11-22 18:42:56,065 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:56,068 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:56,085 INFO  L349             Elim1Store]: treesize reduction 27, result has 44.9 percent of original size
[2024-11-22 18:42:56,085 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 850 treesize of output 788
[2024-11-22 18:42:56,143 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 6
[2024-11-22 18:42:56,163 INFO  L349             Elim1Store]: treesize reduction 9, result has 10.0 percent of original size
[2024-11-22 18:42:56,163 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 44
[2024-11-22 18:42:56,227 INFO  L349             Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-22 18:42:56,227 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 27
[2024-11-22 18:42:56,241 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:56,242 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:56,247 INFO  L349             Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-22 18:42:56,247 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 124
[2024-11-22 18:42:56,323 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:56,325 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:56,396 INFO  L349             Elim1Store]: treesize reduction 449, result has 27.8 percent of original size
[2024-11-22 18:42:56,397 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 1941 treesize of output 1689
[2024-11-22 18:42:56,413 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:56,413 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:56,417 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:42:56,417 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 687 treesize of output 605
[2024-11-22 18:42:56,446 INFO  L349             Elim1Store]: treesize reduction 137, result has 5.5 percent of original size
[2024-11-22 18:42:56,446 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1165 treesize of output 966
[2024-11-22 18:42:56,453 INFO  L173   IndexEqualityManager]: detected equality via solver
[2024-11-22 18:42:56,464 INFO  L349             Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2024-11-22 18:42:56,464 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 38
[2024-11-22 18:42:56,474 INFO  L349             Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2024-11-22 18:42:56,475 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 22
[2024-11-22 18:42:56,485 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:43:00,589 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked.
[2024-11-22 18:43:00,590 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934106334] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 18:43:00,590 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 18:43:00,590 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 38
[2024-11-22 18:43:00,590 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779593169]
[2024-11-22 18:43:00,590 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 18:43:00,590 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 38 states
[2024-11-22 18:43:00,591 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:43:00,591 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants.
[2024-11-22 18:43:00,591 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1202, Unknown=9, NotChecked=70, Total=1406
[2024-11-22 18:43:00,591 INFO  L87              Difference]: Start difference. First operand 78 states and 88 transitions. Second operand  has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 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)
[2024-11-22 18:43:03,013 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:43:03,013 INFO  L93              Difference]: Finished difference Result 127 states and 140 transitions.
[2024-11-22 18:43:03,014 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. 
[2024-11-22 18:43:03,014 INFO  L78                 Accepts]: Start accepts. Automaton has  has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31
[2024-11-22 18:43:03,014 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:43:03,015 INFO  L225             Difference]: With dead ends: 127
[2024-11-22 18:43:03,015 INFO  L226             Difference]: Without dead ends: 127
[2024-11-22 18:43:03,015 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 35.6s TimeCoverageRelationStatistics Valid=450, Invalid=2967, Unknown=9, NotChecked=114, Total=3540
[2024-11-22 18:43:03,016 INFO  L432           NwaCegarLoop]: 28 mSDtfsCounter, 111 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 87 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-11-22 18:43:03,016 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 421 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 700 Invalid, 0 Unknown, 87 Unchecked, 1.0s Time]
[2024-11-22 18:43:03,016 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 127 states.
[2024-11-22 18:43:03,017 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 113.
[2024-11-22 18:43:03,018 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 113 states, 101 states have (on average 1.2475247524752475) internal successors, (126), 112 states have internal predecessors, (126), 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)
[2024-11-22 18:43:03,018 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions.
[2024-11-22 18:43:03,019 INFO  L78                 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 31
[2024-11-22 18:43:03,019 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:43:03,019 INFO  L471      AbstractCegarLoop]: Abstraction has 113 states and 126 transitions.
[2024-11-22 18:43:03,019 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 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)
[2024-11-22 18:43:03,021 INFO  L276                IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions.
[2024-11-22 18:43:03,022 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2024-11-22 18:43:03,022 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:43:03,022 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:43:03,029 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-11-22 18:43:03,222 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:43:03,222 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:43:03,223 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:43:03,223 INFO  L85        PathProgramCache]: Analyzing trace with hash 678570018, now seen corresponding path program 1 times
[2024-11-22 18:43:03,223 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:43:03,223 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825422913]
[2024-11-22 18:43:03,223 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:43:03,223 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:43:03,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:43:03,388 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:43:03,389 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:43:03,389 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825422913]
[2024-11-22 18:43:03,389 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825422913] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 18:43:03,389 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925130257]
[2024-11-22 18:43:03,389 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 18:43:03,389 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:43:03,389 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:43:03,391 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 18:43:03,396 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-22 18:43:03,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 18:43:03,486 INFO  L255         TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-22 18:43:03,487 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 18:43:03,491 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-22 18:43:03,511 INFO  L349             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-22 18:43:03,512 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-22 18:43:03,528 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:43:03,552 INFO  L349             Elim1Store]: treesize reduction 19, result has 20.8 percent of original size
[2024-11-22 18:43:03,552 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 33
[2024-11-22 18:43:03,578 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 24
[2024-11-22 18:43:03,637 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:43:03,637 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 16
[2024-11-22 18:43:03,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:43:03,651 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-22 18:43:03,773 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:43:03,774 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 19
[2024-11-22 18:43:03,780 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:43:03,780 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 30
[2024-11-22 18:43:03,784 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9
[2024-11-22 18:43:03,893 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:43:03,893 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [925130257] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-22 18:43:03,893 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-22 18:43:03,894 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 10] total 21
[2024-11-22 18:43:03,894 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114974458]
[2024-11-22 18:43:03,894 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-22 18:43:03,894 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2024-11-22 18:43:03,894 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 18:43:03,894 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2024-11-22 18:43:03,895 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=395, Unknown=1, NotChecked=0, Total=462
[2024-11-22 18:43:03,895 INFO  L87              Difference]: Start difference. First operand 113 states and 126 transitions. Second operand  has 22 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 22 states have internal predecessors, (61), 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)
[2024-11-22 18:43:04,546 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 18:43:04,546 INFO  L93              Difference]: Finished difference Result 127 states and 137 transitions.
[2024-11-22 18:43:04,547 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2024-11-22 18:43:04,547 INFO  L78                 Accepts]: Start accepts. Automaton has  has 22 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31
[2024-11-22 18:43:04,547 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 18:43:04,547 INFO  L225             Difference]: With dead ends: 127
[2024-11-22 18:43:04,547 INFO  L226             Difference]: Without dead ends: 127
[2024-11-22 18:43:04,548 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=331, Invalid=1307, Unknown=2, NotChecked=0, Total=1640
[2024-11-22 18:43:04,548 INFO  L432           NwaCegarLoop]: 23 mSDtfsCounter, 106 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 27 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 18:43:04,548 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 224 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-22 18:43:04,549 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 127 states.
[2024-11-22 18:43:04,550 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 115.
[2024-11-22 18:43:04,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 115 states, 103 states have (on average 1.2427184466019416) internal successors, (128), 114 states have internal predecessors, (128), 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)
[2024-11-22 18:43:04,550 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 128 transitions.
[2024-11-22 18:43:04,550 INFO  L78                 Accepts]: Start accepts. Automaton has 115 states and 128 transitions. Word has length 31
[2024-11-22 18:43:04,550 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 18:43:04,550 INFO  L471      AbstractCegarLoop]: Abstraction has 115 states and 128 transitions.
[2024-11-22 18:43:04,551 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 22 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 22 states have internal predecessors, (61), 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)
[2024-11-22 18:43:04,551 INFO  L276                IsEmpty]: Start isEmpty. Operand 115 states and 128 transitions.
[2024-11-22 18:43:04,551 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2024-11-22 18:43:04,551 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 18:43:04,551 INFO  L215           NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 18:43:04,559 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-22 18:43:04,751 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22
[2024-11-22 18:43:04,751 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 24 more)] ===
[2024-11-22 18:43:04,752 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 18:43:04,752 INFO  L85        PathProgramCache]: Analyzing trace with hash -1131545711, now seen corresponding path program 2 times
[2024-11-22 18:43:04,752 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 18:43:04,752 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311264962]
[2024-11-22 18:43:04,752 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-22 18:43:04,752 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 18:43:04,765 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-22 18:43:04,765 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-22 18:43:05,222 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-22 18:43:05,222 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 18:43:05,223 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311264962]
[2024-11-22 18:43:05,223 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311264962] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 18:43:05,223 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749071099]
[2024-11-22 18:43:05,223 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-22 18:43:05,223 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 18:43:05,223 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 18:43:05,225 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-22 18:43:05,226 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-22 18:43:05,351 INFO  L227   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-22 18:43:05,351 INFO  L228   tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-22 18:43:05,353 INFO  L255         TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 58 conjuncts are in the unsatisfiable core
[2024-11-22 18:43:05,358 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 18:43:05,362 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-22 18:43:05,379 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:43:05,385 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-11-22 18:43:05,391 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-22 18:43:05,399 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2024-11-22 18:43:05,433 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28
[2024-11-22 18:43:05,439 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28
[2024-11-22 18:43:05,529 INFO  L349             Elim1Store]: treesize reduction 4, result has 50.0 percent of original size
[2024-11-22 18:43:05,529 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11
[2024-11-22 18:43:05,607 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 38
[2024-11-22 18:43:05,619 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21
[2024-11-22 18:43:05,667 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:43:05,691 INFO  L349             Elim1Store]: treesize reduction 32, result has 41.8 percent of original size
[2024-11-22 18:43:05,692 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 131 treesize of output 102
[2024-11-22 18:43:05,703 INFO  L190   IndexEqualityManager]: detected not equals via solver
[2024-11-22 18:43:05,725 INFO  L349             Elim1Store]: treesize reduction 52, result has 37.3 percent of original size
[2024-11-22 18:43:05,726 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 51
[2024-11-22 18:43:05,922 INFO  L349             Elim1Store]: treesize reduction 90, result has 15.9 percent of original size
[2024-11-22 18:43:05,923 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 159 treesize of output 109
[2024-11-22 18:43:05,932 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 114
[2024-11-22 18:43:07,447 INFO  L349             Elim1Store]: treesize reduction 226, result has 64.6 percent of original size
[2024-11-22 18:43:07,448 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 3 disjoint index pairs (out of 136 index pairs), introduced 20 new quantified variables, introduced 136 case distinctions, treesize of input 278 treesize of output 541
[2024-11-22 18:43:07,547 INFO  L349             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-22 18:43:07,548 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 23 case distinctions, treesize of input 124 treesize of output 216