./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-5.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 3061b6dc
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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-5.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 21bdbc3e0ac2e83aebdf4ed5d685b5451eeeab46fc8ce4a523557df5ff3c8a1c
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 19:32:35,429 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 19:32:35,501 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 19:32:35,508 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 19:32:35,510 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 19:32:35,553 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 19:32:35,554 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 19:32:35,555 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 19:32:35,555 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 19:32:35,556 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 19:32:35,556 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 19:32:35,556 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 19:32:35,557 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 19:32:35,557 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 19:32:35,558 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 19:32:35,558 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 19:32:35,560 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 19:32:35,560 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 19:32:35,563 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 19:32:35,564 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 19:32:35,564 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 19:32:35,564 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 19:32:35,565 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 19:32:35,565 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 19:32:35,565 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 19:32:35,565 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 19:32:35,566 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 19:32:35,566 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 19:32:35,566 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 19:32:35,566 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 19:32:35,567 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 19:32:35,567 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 19:32:35,567 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 19:32:35,567 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 19:32:35,567 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 19:32:35,568 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 19:32:35,568 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 19:32:35,568 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 19:32:35,568 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 19:32:35,569 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 19:32:35,569 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 19:32:35,570 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 19:32:35,571 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 -> 21bdbc3e0ac2e83aebdf4ed5d685b5451eeeab46fc8ce4a523557df5ff3c8a1c
[2024-11-18 19:32:35,878 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 19:32:35,915 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 19:32:35,918 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 19:32:35,919 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 19:32:35,920 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 19:32:35,921 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-5.i
[2024-11-18 19:32:37,392 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 19:32:37,703 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 19:32:37,704 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-5.i
[2024-11-18 19:32:37,719 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3dd52669/0542474f6d0a4c49a04a27a310d90b5f/FLAGee11deaa9
[2024-11-18 19:32:37,739 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3dd52669/0542474f6d0a4c49a04a27a310d90b5f
[2024-11-18 19:32:37,742 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 19:32:37,745 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 19:32:37,747 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 19:32:37,747 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 19:32:37,753 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 19:32:37,754 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:37" (1/1) ...
[2024-11-18 19:32:37,754 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49973b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:37, skipping insertion in model container
[2024-11-18 19:32:37,755 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:32:37" (1/1) ...
[2024-11-18 19:32:37,811 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 19:32:37,998 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-5.i[915,928]
[2024-11-18 19:32:38,120 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 19:32:38,143 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 19:32:38,153 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-5.i[915,928]
[2024-11-18 19:32:38,232 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 19:32:38,259 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 19:32:38,260 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38 WrapperNode
[2024-11-18 19:32:38,260 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 19:32:38,261 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 19:32:38,261 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 19:32:38,262 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 19:32:38,269 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,295 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,356 INFO  L138                Inliner]: procedures = 26, calls = 80, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 493
[2024-11-18 19:32:38,357 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 19:32:38,358 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 19:32:38,358 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 19:32:38,358 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 19:32:38,370 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,371 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,380 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,424 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].
[2024-11-18 19:32:38,425 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,425 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,444 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,449 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,454 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,461 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,484 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 19:32:38,485 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 19:32:38,485 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 19:32:38,485 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 19:32:38,486 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (1/1) ...
[2024-11-18 19:32:38,492 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 19:32:38,504 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 19:32:38,523 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)
[2024-11-18 19:32:38,527 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
[2024-11-18 19:32:38,575 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 19:32:38,575 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-18 19:32:38,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-18 19:32:38,575 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 19:32:38,575 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 19:32:38,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 19:32:38,723 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 19:32:38,726 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 19:32:39,670 INFO  L?                        ?]: Removed 19 outVars from TransFormulas that were not future-live.
[2024-11-18 19:32:39,672 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 19:32:39,693 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 19:32:39,694 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-18 19:32:39,694 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:39 BoogieIcfgContainer
[2024-11-18 19:32:39,694 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 19:32:39,700 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 19:32:39,700 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 19:32:39,704 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 19:32:39,704 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:32:37" (1/3) ...
[2024-11-18 19:32:39,705 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be1d8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:39, skipping insertion in model container
[2024-11-18 19:32:39,706 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:32:38" (2/3) ...
[2024-11-18 19:32:39,706 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be1d8c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:32:39, skipping insertion in model container
[2024-11-18 19:32:39,707 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:32:39" (3/3) ...
[2024-11-18 19:32:39,708 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-5.i
[2024-11-18 19:32:39,725 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 19:32:39,725 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 19:32:39,804 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 19:32:39,810 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;@51745c4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 19:32:39,811 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 19:32:39,817 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 207 states, 137 states have (on average 1.5255474452554745) internal successors, (209), 138 states have internal predecessors, (209), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67)
[2024-11-18 19:32:39,849 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 432
[2024-11-18 19:32:39,849 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:32:39,851 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:32:39,851 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:32:39,857 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:32:39,857 INFO  L85        PathProgramCache]: Analyzing trace with hash 15854637, now seen corresponding path program 1 times
[2024-11-18 19:32:39,868 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:32:39,868 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350966825]
[2024-11-18 19:32:39,869 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:32:39,869 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:32:40,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:32:40,554 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 8712 trivial. 0 not checked.
[2024-11-18 19:32:40,555 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:32:40,555 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350966825]
[2024-11-18 19:32:40,556 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350966825] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 19:32:40,557 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027950490]
[2024-11-18 19:32:40,557 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:32:40,558 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 19:32:40,558 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 19:32:40,560 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)
[2024-11-18 19:32:40,562 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-18 19:32:40,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:32:40,901 INFO  L255         TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-18 19:32:40,918 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 19:32:40,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 8712 trivial. 0 not checked.
[2024-11-18 19:32:40,970 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 19:32:40,970 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027950490] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 19:32:40,970 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 19:32:40,970 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-18 19:32:40,975 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035675056]
[2024-11-18 19:32:40,976 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 19:32:40,981 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-18 19:32:40,983 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 19:32:41,010 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-18 19:32:41,011 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 19:32:41,016 INFO  L87              Difference]: Start difference. First operand  has 207 states, 137 states have (on average 1.5255474452554745) internal successors, (209), 138 states have internal predecessors, (209), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) Second operand  has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-18 19:32:41,069 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 19:32:41,073 INFO  L93              Difference]: Finished difference Result 407 states and 747 transitions.
[2024-11-18 19:32:41,074 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-18 19:32:41,075 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 2 states have call successors, (67) Word has length 431
[2024-11-18 19:32:41,076 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 19:32:41,091 INFO  L225             Difference]: With dead ends: 407
[2024-11-18 19:32:41,091 INFO  L226             Difference]: Without dead ends: 203
[2024-11-18 19:32:41,096 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 19:32:41,099 INFO  L432           NwaCegarLoop]: 334 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, 334 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
[2024-11-18 19:32:41,100 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 19:32:41,118 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 203 states.
[2024-11-18 19:32:41,183 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203.
[2024-11-18 19:32:41,185 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 203 states, 134 states have (on average 1.492537313432836) internal successors, (200), 134 states have internal predecessors, (200), 67 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67)
[2024-11-18 19:32:41,193 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 334 transitions.
[2024-11-18 19:32:41,196 INFO  L78                 Accepts]: Start accepts. Automaton has 203 states and 334 transitions. Word has length 431
[2024-11-18 19:32:41,197 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 19:32:41,197 INFO  L471      AbstractCegarLoop]: Abstraction has 203 states and 334 transitions.
[2024-11-18 19:32:41,198 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 50.5) internal successors, (101), 2 states have internal predecessors, (101), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (67), 1 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-18 19:32:41,198 INFO  L276                IsEmpty]: Start isEmpty. Operand 203 states and 334 transitions.
[2024-11-18 19:32:41,207 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 432
[2024-11-18 19:32:41,207 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:32:41,208 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:32:41,228 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-18 19:32:41,409 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
[2024-11-18 19:32:41,409 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:32:41,410 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:32:41,410 INFO  L85        PathProgramCache]: Analyzing trace with hash -1547106365, now seen corresponding path program 1 times
[2024-11-18 19:32:41,410 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:32:41,410 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101899462]
[2024-11-18 19:32:41,411 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:32:41,411 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:32:41,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:32:47,042 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked.
[2024-11-18 19:32:47,044 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:32:47,044 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101899462]
[2024-11-18 19:32:47,045 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101899462] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 19:32:47,045 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 19:32:47,046 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2024-11-18 19:32:47,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055822148]
[2024-11-18 19:32:47,047 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 19:32:47,048 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-18 19:32:47,048 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 19:32:47,051 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-18 19:32:47,052 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156
[2024-11-18 19:32:47,052 INFO  L87              Difference]: Start difference. First operand 203 states and 334 transitions. Second operand  has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 2 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-18 19:32:53,751 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 19:32:53,752 INFO  L93              Difference]: Finished difference Result 1578 states and 2600 transitions.
[2024-11-18 19:32:53,753 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. 
[2024-11-18 19:32:53,753 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 2 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 431
[2024-11-18 19:32:53,755 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 19:32:53,770 INFO  L225             Difference]: With dead ends: 1578
[2024-11-18 19:32:53,770 INFO  L226             Difference]: Without dead ends: 1378
[2024-11-18 19:32:53,777 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=364, Invalid=1196, Unknown=0, NotChecked=0, Total=1560
[2024-11-18 19:32:53,778 INFO  L432           NwaCegarLoop]: 334 mSDtfsCounter, 3185 mSDsluCounter, 3146 mSDsCounter, 0 mSdLazyCounter, 2469 mSolverCounterSat, 847 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3185 SdHoareTripleChecker+Valid, 3480 SdHoareTripleChecker+Invalid, 3316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 847 IncrementalHoareTripleChecker+Valid, 2469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2024-11-18 19:32:53,779 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [3185 Valid, 3480 Invalid, 3316 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [847 Valid, 2469 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2024-11-18 19:32:53,783 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1378 states.
[2024-11-18 19:32:53,869 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 363.
[2024-11-18 19:32:53,870 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 363 states, 278 states have (on average 1.618705035971223) internal successors, (450), 279 states have internal predecessors, (450), 82 states have call successors, (82), 2 states have call predecessors, (82), 2 states have return successors, (82), 81 states have call predecessors, (82), 82 states have call successors, (82)
[2024-11-18 19:32:53,872 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 614 transitions.
[2024-11-18 19:32:53,874 INFO  L78                 Accepts]: Start accepts. Automaton has 363 states and 614 transitions. Word has length 431
[2024-11-18 19:32:53,875 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 19:32:53,875 INFO  L471      AbstractCegarLoop]: Abstraction has 363 states and 614 transitions.
[2024-11-18 19:32:53,876 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 states have internal predecessors, (99), 2 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-18 19:32:53,876 INFO  L276                IsEmpty]: Start isEmpty. Operand 363 states and 614 transitions.
[2024-11-18 19:32:53,885 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 432
[2024-11-18 19:32:53,885 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:32:53,886 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:32:53,886 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-18 19:32:53,887 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:32:53,887 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:32:53,888 INFO  L85        PathProgramCache]: Analyzing trace with hash 258331969, now seen corresponding path program 1 times
[2024-11-18 19:32:53,888 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:32:53,888 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840393399]
[2024-11-18 19:32:53,888 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:32:53,889 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:32:54,108 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:33:06,450 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked.
[2024-11-18 19:33:06,450 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:33:06,451 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840393399]
[2024-11-18 19:33:06,451 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840393399] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 19:33:06,451 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 19:33:06,451 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17
[2024-11-18 19:33:06,451 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235647347]
[2024-11-18 19:33:06,451 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 19:33:06,453 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-18 19:33:06,453 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 19:33:06,454 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-18 19:33:06,455 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272
[2024-11-18 19:33:06,455 INFO  L87              Difference]: Start difference. First operand 363 states and 614 transitions. Second operand  has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 3 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67)
[2024-11-18 19:33:20,773 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 19:33:20,774 INFO  L93              Difference]: Finished difference Result 2799 states and 4681 transitions.
[2024-11-18 19:33:20,774 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2024-11-18 19:33:20,775 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 3 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) Word has length 431
[2024-11-18 19:33:20,776 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 19:33:20,793 INFO  L225             Difference]: With dead ends: 2799
[2024-11-18 19:33:20,794 INFO  L226             Difference]: Without dead ends: 2436
[2024-11-18 19:33:20,796 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=383, Invalid=1023, Unknown=0, NotChecked=0, Total=1406
[2024-11-18 19:33:20,797 INFO  L432           NwaCegarLoop]: 420 mSDtfsCounter, 5255 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 2985 mSolverCounterSat, 1473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5255 SdHoareTripleChecker+Valid, 2768 SdHoareTripleChecker+Invalid, 4458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1473 IncrementalHoareTripleChecker+Valid, 2985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time
[2024-11-18 19:33:20,798 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [5255 Valid, 2768 Invalid, 4458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1473 Valid, 2985 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time]
[2024-11-18 19:33:20,801 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2436 states.
[2024-11-18 19:33:20,920 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2436 to 662.
[2024-11-18 19:33:20,922 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 662 states, 523 states have (on average 1.6806883365200764) internal successors, (879), 523 states have internal predecessors, (879), 134 states have call successors, (134), 4 states have call predecessors, (134), 4 states have return successors, (134), 134 states have call predecessors, (134), 134 states have call successors, (134)
[2024-11-18 19:33:20,927 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1147 transitions.
[2024-11-18 19:33:20,929 INFO  L78                 Accepts]: Start accepts. Automaton has 662 states and 1147 transitions. Word has length 431
[2024-11-18 19:33:20,932 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 19:33:20,933 INFO  L471      AbstractCegarLoop]: Abstraction has 662 states and 1147 transitions.
[2024-11-18 19:33:20,934 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 3 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67)
[2024-11-18 19:33:20,934 INFO  L276                IsEmpty]: Start isEmpty. Operand 662 states and 1147 transitions.
[2024-11-18 19:33:20,937 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 432
[2024-11-18 19:33:20,937 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:33:20,938 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:33:20,938 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 19:33:20,938 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:33:20,939 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:33:20,939 INFO  L85        PathProgramCache]: Analyzing trace with hash 124318463, now seen corresponding path program 1 times
[2024-11-18 19:33:20,939 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:33:20,939 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864334730]
[2024-11-18 19:33:20,940 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:33:20,940 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:33:21,058 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:33:22,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked.
[2024-11-18 19:33:22,202 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:33:22,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864334730]
[2024-11-18 19:33:22,202 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864334730] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 19:33:22,206 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 19:33:22,206 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2024-11-18 19:33:22,206 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622197233]
[2024-11-18 19:33:22,206 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 19:33:22,207 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-18 19:33:22,207 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 19:33:22,208 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-18 19:33:22,208 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132
[2024-11-18 19:33:22,209 INFO  L87              Difference]: Start difference. First operand 662 states and 1147 transitions. Second operand  has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 2 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-18 19:33:26,208 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 19:33:26,209 INFO  L93              Difference]: Finished difference Result 4007 states and 6776 transitions.
[2024-11-18 19:33:26,209 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-18 19:33:26,210 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 2 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 431
[2024-11-18 19:33:26,210 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 19:33:26,228 INFO  L225             Difference]: With dead ends: 4007
[2024-11-18 19:33:26,229 INFO  L226             Difference]: Without dead ends: 3348
[2024-11-18 19:33:26,232 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552
[2024-11-18 19:33:26,234 INFO  L432           NwaCegarLoop]: 513 mSDtfsCounter, 2587 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 2194 mSolverCounterSat, 784 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2587 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 2978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 784 IncrementalHoareTripleChecker+Valid, 2194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2024-11-18 19:33:26,234 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2587 Valid, 2571 Invalid, 2978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [784 Valid, 2194 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2024-11-18 19:33:26,238 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3348 states.
[2024-11-18 19:33:26,631 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3348 to 2599.
[2024-11-18 19:33:26,637 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2599 states, 2084 states have (on average 1.6660268714011517) internal successors, (3472), 2088 states have internal predecessors, (3472), 494 states have call successors, (494), 20 states have call predecessors, (494), 20 states have return successors, (494), 490 states have call predecessors, (494), 494 states have call successors, (494)
[2024-11-18 19:33:26,648 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2599 states to 2599 states and 4460 transitions.
[2024-11-18 19:33:26,652 INFO  L78                 Accepts]: Start accepts. Automaton has 2599 states and 4460 transitions. Word has length 431
[2024-11-18 19:33:26,653 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 19:33:26,656 INFO  L471      AbstractCegarLoop]: Abstraction has 2599 states and 4460 transitions.
[2024-11-18 19:33:26,657 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 2 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-18 19:33:26,657 INFO  L276                IsEmpty]: Start isEmpty. Operand 2599 states and 4460 transitions.
[2024-11-18 19:33:26,661 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 432
[2024-11-18 19:33:26,662 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:33:26,663 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:33:26,663 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 19:33:26,663 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:33:26,664 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:33:26,664 INFO  L85        PathProgramCache]: Analyzing trace with hash -1273720321, now seen corresponding path program 1 times
[2024-11-18 19:33:26,664 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:33:26,664 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593455156]
[2024-11-18 19:33:26,666 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:33:26,666 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:33:26,825 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:33:32,885 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8844 trivial. 0 not checked.
[2024-11-18 19:33:32,885 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:33:32,886 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593455156]
[2024-11-18 19:33:32,886 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593455156] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 19:33:32,886 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 19:33:32,886 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15
[2024-11-18 19:33:32,886 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025623476]
[2024-11-18 19:33:32,887 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 19:33:32,887 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-11-18 19:33:32,888 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 19:33:32,888 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-11-18 19:33:32,889 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210
[2024-11-18 19:33:32,889 INFO  L87              Difference]: Start difference. First operand 2599 states and 4460 transitions. Second operand  has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 2 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-18 19:33:45,193 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 19:33:45,193 INFO  L93              Difference]: Finished difference Result 11363 states and 19349 transitions.
[2024-11-18 19:33:45,195 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-11-18 19:33:45,195 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 2 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 431
[2024-11-18 19:33:45,196 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 19:33:45,247 INFO  L225             Difference]: With dead ends: 11363
[2024-11-18 19:33:45,248 INFO  L226             Difference]: Without dead ends: 8767
[2024-11-18 19:33:45,261 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=144, Invalid=408, Unknown=0, NotChecked=0, Total=552
[2024-11-18 19:33:45,263 INFO  L432           NwaCegarLoop]: 588 mSDtfsCounter, 1749 mSDsluCounter, 2187 mSDsCounter, 0 mSdLazyCounter, 3106 mSolverCounterSat, 430 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 2775 SdHoareTripleChecker+Invalid, 3536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 430 IncrementalHoareTripleChecker+Valid, 3106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time
[2024-11-18 19:33:45,264 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 2775 Invalid, 3536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [430 Valid, 3106 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time]
[2024-11-18 19:33:45,274 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8767 states.
[2024-11-18 19:33:46,461 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8767 to 3923.
[2024-11-18 19:33:46,470 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3923 states, 3178 states have (on average 1.657960981749528) internal successors, (5269), 3190 states have internal predecessors, (5269), 702 states have call successors, (702), 42 states have call predecessors, (702), 42 states have return successors, (702), 690 states have call predecessors, (702), 702 states have call successors, (702)
[2024-11-18 19:33:46,487 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3923 states to 3923 states and 6673 transitions.
[2024-11-18 19:33:46,493 INFO  L78                 Accepts]: Start accepts. Automaton has 3923 states and 6673 transitions. Word has length 431
[2024-11-18 19:33:46,495 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 19:33:46,496 INFO  L471      AbstractCegarLoop]: Abstraction has 3923 states and 6673 transitions.
[2024-11-18 19:33:46,496 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 2 states have call successors, (67), 1 states have call predecessors, (67), 1 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67)
[2024-11-18 19:33:46,496 INFO  L276                IsEmpty]: Start isEmpty. Operand 3923 states and 6673 transitions.
[2024-11-18 19:33:46,505 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 432
[2024-11-18 19:33:46,505 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 19:33:46,506 INFO  L215           NwaCegarLoop]: trace histogram [67, 67, 67, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-18 19:33:46,506 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-18 19:33:46,507 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 19:33:46,508 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 19:33:46,508 INFO  L85        PathProgramCache]: Analyzing trace with hash -850073599, now seen corresponding path program 1 times
[2024-11-18 19:33:46,509 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 19:33:46,509 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299929336]
[2024-11-18 19:33:46,509 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:33:46,509 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 19:33:46,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:33:47,139 INFO  L134       CoverageAnalysis]: Checked inductivity of 8844 backedges. 156 proven. 42 refuted. 0 times theorem prover too weak. 8646 trivial. 0 not checked.
[2024-11-18 19:33:47,139 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 19:33:47,139 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299929336]
[2024-11-18 19:33:47,140 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299929336] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 19:33:47,140 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568056194]
[2024-11-18 19:33:47,140 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 19:33:47,140 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 19:33:47,140 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 19:33:47,146 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)
[2024-11-18 19:33:47,148 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-18 19:33:47,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 19:33:47,401 INFO  L255         TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-18 19:33:47,412 INFO  L278         TraceCheckSpWp]: Computing forward predicates...