./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-64.i --full-output --architecture 32bit


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


Checking for ERROR reachability
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/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-64.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a46946bc8d58053a534d6da71b639247988c56d2fd04364ce5eeef30b6223e75
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 07:25:31,411 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 07:25:31,488 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-22 07:25:31,493 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 07:25:31,495 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 07:25:31,521 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 07:25:31,522 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 07:25:31,522 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 07:25:31,523 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 07:25:31,524 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 07:25:31,525 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 07:25:31,525 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 07:25:31,526 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 07:25:31,526 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 07:25:31,527 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 07:25:31,528 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 07:25:31,528 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-22 07:25:31,528 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-22 07:25:31,528 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 07:25:31,528 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-22 07:25:31,529 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 07:25:31,529 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-22 07:25:31,532 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 07:25:31,532 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-22 07:25:31,532 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 07:25:31,532 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-22 07:25:31,532 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-22 07:25:31,533 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 07:25:31,533 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 07:25:31,533 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 07:25:31,533 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 07:25:31,533 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 07:25:31,533 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 07:25:31,534 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 07:25:31,534 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 07:25:31,534 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-22 07:25:31,534 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 07:25:31,534 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 07:25:31,535 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 07:25:31,535 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 07:25:31,535 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 07:25:31,536 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 07:25:31,537 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 ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a46946bc8d58053a534d6da71b639247988c56d2fd04364ce5eeef30b6223e75
[2024-11-22 07:25:31,753 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 07:25:31,773 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 07:25:31,775 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 07:25:31,776 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 07:25:31,777 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 07:25:31,777 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-64.i
[2024-11-22 07:25:33,061 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 07:25:33,262 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 07:25:33,262 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-64.i
[2024-11-22 07:25:33,273 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09dd120bd/56f8441eff1c413396504c6bdd6aa3a0/FLAG8e4834ede
[2024-11-22 07:25:33,291 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/09dd120bd/56f8441eff1c413396504c6bdd6aa3a0
[2024-11-22 07:25:33,293 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 07:25:33,294 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 07:25:33,296 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 07:25:33,296 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 07:25:33,301 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 07:25:33,302 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,303 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c1824b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33, skipping insertion in model container
[2024-11-22 07:25:33,304 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,341 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 07:25:33,513 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-64.i[916,929]
[2024-11-22 07:25:33,668 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 07:25:33,683 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 07:25:33,701 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-64.i[916,929]
[2024-11-22 07:25:33,773 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 07:25:33,792 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 07:25:33,793 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33 WrapperNode
[2024-11-22 07:25:33,793 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 07:25:33,794 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 07:25:33,795 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 07:25:33,795 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 07:25:33,801 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,823 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,869 INFO  L138                Inliner]: procedures = 26, calls = 98, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 561
[2024-11-22 07:25:33,869 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 07:25:33,870 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 07:25:33,870 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 07:25:33,870 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 07:25:33,881 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,881 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,889 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,917 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-22 07:25:33,917 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,920 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,942 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,949 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,958 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,962 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,983 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 07:25:33,984 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 07:25:33,984 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 07:25:33,984 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 07:25:33,985 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (1/1) ...
[2024-11-22 07:25:33,993 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 07:25:34,002 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 07:25:34,017 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 07:25:34,020 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 07:25:34,059 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 07:25:34,059 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-22 07:25:34,059 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-22 07:25:34,059 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 07:25:34,059 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 07:25:34,059 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 07:25:34,146 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 07:25:34,148 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 07:25:34,904 INFO  L?                        ?]: Removed 19 outVars from TransFormulas that were not future-live.
[2024-11-22 07:25:34,905 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 07:25:34,924 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 07:25:34,926 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-22 07:25:34,926 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:25:34 BoogieIcfgContainer
[2024-11-22 07:25:34,926 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 07:25:34,928 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 07:25:34,928 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 07:25:34,931 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 07:25:34,931 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:25:33" (1/3) ...
[2024-11-22 07:25:34,932 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59310479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:25:34, skipping insertion in model container
[2024-11-22 07:25:34,933 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:25:33" (2/3) ...
[2024-11-22 07:25:34,933 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59310479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:25:34, skipping insertion in model container
[2024-11-22 07:25:34,933 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:25:34" (3/3) ...
[2024-11-22 07:25:34,934 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-64.i
[2024-11-22 07:25:34,948 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 07:25:34,948 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-22 07:25:35,010 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 07:25:35,017 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=LoopHeads, 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;@76693950, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 07:25:35,020 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-22 07:25:35,025 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 237 states, 149 states have (on average 1.516778523489933) internal successors, (226), 150 states have internal predecessors, (226), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85)
[2024-11-22 07:25:35,048 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 524
[2024-11-22 07:25:35,050 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 07:25:35,051 INFO  L215           NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 07:25:35,052 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 07:25:35,056 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 07:25:35,057 INFO  L85        PathProgramCache]: Analyzing trace with hash 1210074450, now seen corresponding path program 1 times
[2024-11-22 07:25:35,065 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 07:25:35,065 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280910854]
[2024-11-22 07:25:35,066 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 07:25:35,066 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 07:25:35,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 07:25:35,550 INFO  L134       CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 14112 trivial. 0 not checked.
[2024-11-22 07:25:35,551 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 07:25:35,551 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280910854]
[2024-11-22 07:25:35,552 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280910854] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 07:25:35,552 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301741637]
[2024-11-22 07:25:35,553 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 07:25:35,553 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 07:25:35,553 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 07:25:35,555 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 07:25:35,556 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 07:25:35,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 07:25:35,832 INFO  L255         TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-22 07:25:35,851 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 07:25:35,910 INFO  L134       CoverageAnalysis]: Checked inductivity of 14280 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 14112 trivial. 0 not checked.
[2024-11-22 07:25:35,911 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 07:25:35,911 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [301741637] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 07:25:35,911 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 07:25:35,912 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-22 07:25:35,913 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675593550]
[2024-11-22 07:25:35,914 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 07:25:35,918 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-22 07:25:35,918 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 07:25:35,941 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-22 07:25:35,942 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 07:25:35,946 INFO  L87              Difference]: Start difference. First operand  has 237 states, 149 states have (on average 1.516778523489933) internal successors, (226), 150 states have internal predecessors, (226), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) Second operand  has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85)
[2024-11-22 07:25:36,004 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 07:25:36,005 INFO  L93              Difference]: Finished difference Result 467 states and 871 transitions.
[2024-11-22 07:25:36,006 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-22 07:25:36,007 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85) Word has length 523
[2024-11-22 07:25:36,008 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 07:25:36,017 INFO  L225             Difference]: With dead ends: 467
[2024-11-22 07:25:36,018 INFO  L226             Difference]: Without dead ends: 233
[2024-11-22 07:25:36,024 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 524 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 07:25:36,028 INFO  L432           NwaCegarLoop]: 388 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 07:25:36,029 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 07:25:36,044 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 233 states.
[2024-11-22 07:25:36,086 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233.
[2024-11-22 07:25:36,089 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 233 states, 146 states have (on average 1.4931506849315068) internal successors, (218), 146 states have internal predecessors, (218), 85 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85)
[2024-11-22 07:25:36,091 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 388 transitions.
[2024-11-22 07:25:36,094 INFO  L78                 Accepts]: Start accepts. Automaton has 233 states and 388 transitions. Word has length 523
[2024-11-22 07:25:36,096 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 07:25:36,096 INFO  L471      AbstractCegarLoop]: Abstraction has 233 states and 388 transitions.
[2024-11-22 07:25:36,096 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (85), 2 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85)
[2024-11-22 07:25:36,097 INFO  L276                IsEmpty]: Start isEmpty. Operand 233 states and 388 transitions.
[2024-11-22 07:25:36,108 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 524
[2024-11-22 07:25:36,108 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 07:25:36,109 INFO  L215           NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 07:25:36,123 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 07:25:36,310 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-22 07:25:36,311 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 07:25:36,311 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 07:25:36,312 INFO  L85        PathProgramCache]: Analyzing trace with hash 1776599868, now seen corresponding path program 1 times
[2024-11-22 07:25:36,312 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 07:25:36,312 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048020496]
[2024-11-22 07:25:36,312 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 07:25:36,312 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 07:25:36,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 07:25:36,690 INFO  L134       CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked.
[2024-11-22 07:25:36,691 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 07:25:36,691 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048020496]
[2024-11-22 07:25:36,693 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048020496] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 07:25:36,693 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 07:25:36,693 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 07:25:36,693 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455337909]
[2024-11-22 07:25:36,693 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 07:25:36,695 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 07:25:36,695 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 07:25:36,696 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 07:25:36,696 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 07:25:36,698 INFO  L87              Difference]: Start difference. First operand 233 states and 388 transitions. Second operand  has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:36,772 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 07:25:36,773 INFO  L93              Difference]: Finished difference Result 615 states and 1027 transitions.
[2024-11-22 07:25:36,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 07:25:36,774 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 523
[2024-11-22 07:25:36,776 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 07:25:36,783 INFO  L225             Difference]: With dead ends: 615
[2024-11-22 07:25:36,784 INFO  L226             Difference]: Without dead ends: 385
[2024-11-22 07:25:36,785 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 07:25:36,785 INFO  L432           NwaCegarLoop]: 468 mSDtfsCounter, 236 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 07:25:36,786 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 839 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 07:25:36,787 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 385 states.
[2024-11-22 07:25:36,828 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 382.
[2024-11-22 07:25:36,832 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 382 states, 256 states have (on average 1.52734375) internal successors, (391), 257 states have internal predecessors, (391), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123)
[2024-11-22 07:25:36,834 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 637 transitions.
[2024-11-22 07:25:36,835 INFO  L78                 Accepts]: Start accepts. Automaton has 382 states and 637 transitions. Word has length 523
[2024-11-22 07:25:36,837 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 07:25:36,838 INFO  L471      AbstractCegarLoop]: Abstraction has 382 states and 637 transitions.
[2024-11-22 07:25:36,838 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:36,838 INFO  L276                IsEmpty]: Start isEmpty. Operand 382 states and 637 transitions.
[2024-11-22 07:25:36,844 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 525
[2024-11-22 07:25:36,844 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 07:25:36,845 INFO  L215           NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 07:25:36,845 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-22 07:25:36,845 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 07:25:36,845 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 07:25:36,846 INFO  L85        PathProgramCache]: Analyzing trace with hash 809011717, now seen corresponding path program 1 times
[2024-11-22 07:25:36,846 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 07:25:36,846 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600242657]
[2024-11-22 07:25:36,846 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 07:25:36,847 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 07:25:36,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 07:25:37,549 INFO  L134       CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked.
[2024-11-22 07:25:37,550 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 07:25:37,551 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600242657]
[2024-11-22 07:25:37,552 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600242657] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 07:25:37,553 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 07:25:37,553 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 07:25:37,553 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843135412]
[2024-11-22 07:25:37,554 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 07:25:37,554 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 07:25:37,554 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 07:25:37,556 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 07:25:37,556 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-22 07:25:37,556 INFO  L87              Difference]: Start difference. First operand 382 states and 637 transitions. Second operand  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:37,953 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 07:25:37,954 INFO  L93              Difference]: Finished difference Result 1489 states and 2483 transitions.
[2024-11-22 07:25:37,954 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 07:25:37,955 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 524
[2024-11-22 07:25:37,956 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 07:25:37,963 INFO  L225             Difference]: With dead ends: 1489
[2024-11-22 07:25:37,963 INFO  L226             Difference]: Without dead ends: 1110
[2024-11-22 07:25:37,965 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 07:25:37,966 INFO  L432           NwaCegarLoop]: 731 mSDtfsCounter, 749 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 07:25:37,966 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 2023 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-22 07:25:37,968 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1110 states.
[2024-11-22 07:25:38,033 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 390.
[2024-11-22 07:25:38,034 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 390 states, 264 states have (on average 1.5265151515151516) internal successors, (403), 265 states have internal predecessors, (403), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123)
[2024-11-22 07:25:38,036 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 649 transitions.
[2024-11-22 07:25:38,037 INFO  L78                 Accepts]: Start accepts. Automaton has 390 states and 649 transitions. Word has length 524
[2024-11-22 07:25:38,041 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 07:25:38,041 INFO  L471      AbstractCegarLoop]: Abstraction has 390 states and 649 transitions.
[2024-11-22 07:25:38,041 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:38,041 INFO  L276                IsEmpty]: Start isEmpty. Operand 390 states and 649 transitions.
[2024-11-22 07:25:38,047 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 525
[2024-11-22 07:25:38,047 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 07:25:38,048 INFO  L215           NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 07:25:38,048 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-22 07:25:38,048 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 07:25:38,048 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 07:25:38,049 INFO  L85        PathProgramCache]: Analyzing trace with hash -334909, now seen corresponding path program 1 times
[2024-11-22 07:25:38,049 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 07:25:38,049 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347131396]
[2024-11-22 07:25:38,050 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 07:25:38,050 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 07:25:38,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 07:25:38,584 INFO  L134       CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked.
[2024-11-22 07:25:38,585 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 07:25:38,585 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347131396]
[2024-11-22 07:25:38,585 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347131396] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 07:25:38,585 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 07:25:38,585 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 07:25:38,586 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863465608]
[2024-11-22 07:25:38,586 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 07:25:38,586 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 07:25:38,589 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 07:25:38,590 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 07:25:38,590 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-22 07:25:38,591 INFO  L87              Difference]: Start difference. First operand 390 states and 649 transitions. Second operand  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:38,931 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 07:25:38,931 INFO  L93              Difference]: Finished difference Result 1497 states and 2493 transitions.
[2024-11-22 07:25:38,931 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 07:25:38,932 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 524
[2024-11-22 07:25:38,933 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 07:25:38,938 INFO  L225             Difference]: With dead ends: 1497
[2024-11-22 07:25:38,938 INFO  L226             Difference]: Without dead ends: 1110
[2024-11-22 07:25:38,940 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 07:25:38,940 INFO  L432           NwaCegarLoop]: 745 mSDtfsCounter, 739 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 07:25:38,941 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 2055 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-22 07:25:38,942 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1110 states.
[2024-11-22 07:25:38,987 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 390.
[2024-11-22 07:25:38,988 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 390 states, 264 states have (on average 1.5265151515151516) internal successors, (403), 265 states have internal predecessors, (403), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123)
[2024-11-22 07:25:38,989 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 649 transitions.
[2024-11-22 07:25:38,990 INFO  L78                 Accepts]: Start accepts. Automaton has 390 states and 649 transitions. Word has length 524
[2024-11-22 07:25:38,991 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 07:25:38,991 INFO  L471      AbstractCegarLoop]: Abstraction has 390 states and 649 transitions.
[2024-11-22 07:25:38,991 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:38,992 INFO  L276                IsEmpty]: Start isEmpty. Operand 390 states and 649 transitions.
[2024-11-22 07:25:38,996 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 525
[2024-11-22 07:25:38,997 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 07:25:38,997 INFO  L215           NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 07:25:38,997 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-22 07:25:38,997 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 07:25:38,998 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 07:25:38,998 INFO  L85        PathProgramCache]: Analyzing trace with hash 1326164741, now seen corresponding path program 1 times
[2024-11-22 07:25:38,998 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 07:25:38,998 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062890246]
[2024-11-22 07:25:38,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 07:25:38,998 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 07:25:39,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 07:25:39,486 INFO  L134       CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked.
[2024-11-22 07:25:39,486 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 07:25:39,486 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062890246]
[2024-11-22 07:25:39,487 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062890246] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 07:25:39,487 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 07:25:39,487 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 07:25:39,487 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353324779]
[2024-11-22 07:25:39,487 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 07:25:39,488 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 07:25:39,488 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 07:25:39,488 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 07:25:39,489 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-22 07:25:39,490 INFO  L87              Difference]: Start difference. First operand 390 states and 649 transitions. Second operand  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:39,841 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 07:25:39,842 INFO  L93              Difference]: Finished difference Result 1164 states and 1930 transitions.
[2024-11-22 07:25:39,842 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 07:25:39,843 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 524
[2024-11-22 07:25:39,843 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 07:25:39,847 INFO  L225             Difference]: With dead ends: 1164
[2024-11-22 07:25:39,847 INFO  L226             Difference]: Without dead ends: 777
[2024-11-22 07:25:39,849 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 07:25:39,849 INFO  L432           NwaCegarLoop]: 749 mSDtfsCounter, 398 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 07:25:39,850 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 2056 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-22 07:25:39,850 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 777 states.
[2024-11-22 07:25:39,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 390.
[2024-11-22 07:25:39,888 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 390 states, 264 states have (on average 1.5265151515151516) internal successors, (403), 265 states have internal predecessors, (403), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123)
[2024-11-22 07:25:39,890 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 649 transitions.
[2024-11-22 07:25:39,891 INFO  L78                 Accepts]: Start accepts. Automaton has 390 states and 649 transitions. Word has length 524
[2024-11-22 07:25:39,891 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 07:25:39,892 INFO  L471      AbstractCegarLoop]: Abstraction has 390 states and 649 transitions.
[2024-11-22 07:25:39,892 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:39,892 INFO  L276                IsEmpty]: Start isEmpty. Operand 390 states and 649 transitions.
[2024-11-22 07:25:39,898 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 525
[2024-11-22 07:25:39,898 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 07:25:39,898 INFO  L215           NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 07:25:39,898 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-22 07:25:39,898 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 07:25:39,899 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 07:25:39,899 INFO  L85        PathProgramCache]: Analyzing trace with hash 516818115, now seen corresponding path program 1 times
[2024-11-22 07:25:39,899 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 07:25:39,899 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375036504]
[2024-11-22 07:25:39,899 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 07:25:39,900 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 07:25:39,942 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 07:25:43,958 INFO  L134       CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked.
[2024-11-22 07:25:43,958 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 07:25:43,958 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375036504]
[2024-11-22 07:25:43,959 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375036504] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 07:25:43,959 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 07:25:43,959 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-22 07:25:43,959 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752301887]
[2024-11-22 07:25:43,959 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 07:25:43,960 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-22 07:25:43,960 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 07:25:43,961 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-22 07:25:43,961 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-22 07:25:43,961 INFO  L87              Difference]: Start difference. First operand 390 states and 649 transitions. Second operand  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:44,383 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 07:25:44,384 INFO  L93              Difference]: Finished difference Result 1154 states and 1912 transitions.
[2024-11-22 07:25:44,384 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-22 07:25:44,384 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 524
[2024-11-22 07:25:44,385 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 07:25:44,389 INFO  L225             Difference]: With dead ends: 1154
[2024-11-22 07:25:44,390 INFO  L226             Difference]: Without dead ends: 767
[2024-11-22 07:25:44,391 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-22 07:25:44,391 INFO  L432           NwaCegarLoop]: 731 mSDtfsCounter, 380 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 2363 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-22 07:25:44,392 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 2363 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-22 07:25:44,392 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 767 states.
[2024-11-22 07:25:44,434 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 382.
[2024-11-22 07:25:44,435 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 382 states, 256 states have (on average 1.51953125) internal successors, (389), 257 states have internal predecessors, (389), 123 states have call successors, (123), 2 states have call predecessors, (123), 2 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123)
[2024-11-22 07:25:44,437 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 635 transitions.
[2024-11-22 07:25:44,438 INFO  L78                 Accepts]: Start accepts. Automaton has 382 states and 635 transitions. Word has length 524
[2024-11-22 07:25:44,438 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 07:25:44,438 INFO  L471      AbstractCegarLoop]: Abstraction has 382 states and 635 transitions.
[2024-11-22 07:25:44,439 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:44,439 INFO  L276                IsEmpty]: Start isEmpty. Operand 382 states and 635 transitions.
[2024-11-22 07:25:44,441 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 527
[2024-11-22 07:25:44,441 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 07:25:44,441 INFO  L215           NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 07:25:44,442 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-22 07:25:44,442 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 07:25:44,442 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 07:25:44,442 INFO  L85        PathProgramCache]: Analyzing trace with hash -477261120, now seen corresponding path program 1 times
[2024-11-22 07:25:44,442 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 07:25:44,443 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95285104]
[2024-11-22 07:25:44,443 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 07:25:44,443 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 07:25:44,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 07:25:44,910 INFO  L134       CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked.
[2024-11-22 07:25:44,910 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 07:25:44,911 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95285104]
[2024-11-22 07:25:44,911 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95285104] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 07:25:44,911 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-22 07:25:44,911 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-22 07:25:44,911 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555827818]
[2024-11-22 07:25:44,911 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 07:25:44,912 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-22 07:25:44,912 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 07:25:44,913 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-22 07:25:44,913 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 07:25:44,913 INFO  L87              Difference]: Start difference. First operand 382 states and 635 transitions. Second operand  has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:44,953 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 07:25:44,953 INFO  L93              Difference]: Finished difference Result 1134 states and 1889 transitions.
[2024-11-22 07:25:44,954 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-22 07:25:44,955 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 526
[2024-11-22 07:25:44,955 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 07:25:44,960 INFO  L225             Difference]: With dead ends: 1134
[2024-11-22 07:25:44,960 INFO  L226             Difference]: Without dead ends: 755
[2024-11-22 07:25:44,962 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-22 07:25:44,962 INFO  L432           NwaCegarLoop]: 385 mSDtfsCounter, 213 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 764 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-22 07:25:44,962 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 764 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 07:25:44,963 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 755 states.
[2024-11-22 07:25:45,035 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 753.
[2024-11-22 07:25:45,036 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 753 states, 502 states have (on average 1.5139442231075697) internal successors, (760), 504 states have internal predecessors, (760), 246 states have call successors, (246), 4 states have call predecessors, (246), 4 states have return successors, (246), 244 states have call predecessors, (246), 246 states have call successors, (246)
[2024-11-22 07:25:45,040 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1252 transitions.
[2024-11-22 07:25:45,041 INFO  L78                 Accepts]: Start accepts. Automaton has 753 states and 1252 transitions. Word has length 526
[2024-11-22 07:25:45,042 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-22 07:25:45,042 INFO  L471      AbstractCegarLoop]: Abstraction has 753 states and 1252 transitions.
[2024-11-22 07:25:45,042 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (85), 1 states have call predecessors, (85), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85)
[2024-11-22 07:25:45,042 INFO  L276                IsEmpty]: Start isEmpty. Operand 753 states and 1252 transitions.
[2024-11-22 07:25:45,045 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 527
[2024-11-22 07:25:45,045 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 07:25:45,045 INFO  L215           NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-22 07:25:45,046 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-22 07:25:45,046 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 07:25:45,046 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 07:25:45,046 INFO  L85        PathProgramCache]: Analyzing trace with hash -1294909570, now seen corresponding path program 1 times
[2024-11-22 07:25:45,046 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 07:25:45,047 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042206508]
[2024-11-22 07:25:45,047 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 07:25:45,047 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 07:25:45,353 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat