./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version e2fb8bed
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_fillercodestructure_filler-ps-cn_file-33.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 3c130d3d9fa60b2bea9bba7adbf819cbc71aada0924db06d5b1e68ee6ed3ed16
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-e2fb8be-m
[2025-03-08 13:00:44,978 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-08 13:00:45,032 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-03-08 13:00:45,038 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-08 13:00:45,039 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-08 13:00:45,060 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-08 13:00:45,060 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-08 13:00:45,061 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-08 13:00:45,061 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-08 13:00:45,061 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-08 13:00:45,061 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-08 13:00:45,061 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-08 13:00:45,061 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-08 13:00:45,061 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-08 13:00:45,061 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-08 13:00:45,061 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-08 13:00:45,061 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-08 13:00:45,062 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-08 13:00:45,062 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-08 13:00:45,062 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-08 13:00:45,063 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-08 13:00:45,063 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-08 13:00:45,063 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-08 13:00:45,063 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-08 13:00:45,063 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-08 13:00:45,063 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-08 13:00:45,063 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-08 13:00:45,063 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-08 13:00:45,063 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
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 -> 3c130d3d9fa60b2bea9bba7adbf819cbc71aada0924db06d5b1e68ee6ed3ed16
[2025-03-08 13:00:45,282 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-08 13:00:45,290 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-08 13:00:45,292 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-08 13:00:45,293 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-08 13:00:45,293 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-08 13:00:45,294 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i
[2025-03-08 13:00:46,436 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e612fc44a/763e4f56069a44a6bd7b2b15872d8766/FLAG38b0ab2fa
[2025-03-08 13:00:46,662 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-08 13:00:46,662 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i
[2025-03-08 13:00:46,684 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e612fc44a/763e4f56069a44a6bd7b2b15872d8766/FLAG38b0ab2fa
[2025-03-08 13:00:46,704 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e612fc44a/763e4f56069a44a6bd7b2b15872d8766
[2025-03-08 13:00:46,706 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-08 13:00:46,707 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-08 13:00:46,709 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-08 13:00:46,710 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-08 13:00:46,713 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-08 13:00:46,713 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:46,714 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f68d2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46, skipping insertion in model container
[2025-03-08 13:00:46,714 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:46,733 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-08 13:00:46,829 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_fillercodestructure_filler-ps-cn_file-33.i[919,932]
[2025-03-08 13:00:46,906 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-08 13:00:46,923 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-08 13:00:46,932 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_fillercodestructure_filler-ps-cn_file-33.i[919,932]
[2025-03-08 13:00:46,964 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-08 13:00:46,978 INFO  L204         MainTranslator]: Completed translation
[2025-03-08 13:00:46,979 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46 WrapperNode
[2025-03-08 13:00:46,979 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-08 13:00:46,980 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-08 13:00:46,980 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-08 13:00:46,980 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-08 13:00:46,984 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:46,994 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:47,040 INFO  L138                Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 249
[2025-03-08 13:00:47,041 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-08 13:00:47,042 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-08 13:00:47,042 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-08 13:00:47,042 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-08 13:00:47,048 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:47,048 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:47,051 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:47,069 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].
[2025-03-08 13:00:47,069 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:47,069 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:47,083 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:47,085 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:47,090 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:47,091 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:47,096 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-08 13:00:47,097 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-08 13:00:47,098 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-08 13:00:47,098 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-08 13:00:47,099 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (1/1) ...
[2025-03-08 13:00:47,104 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-08 13:00:47,113 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-08 13:00:47,127 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)
[2025-03-08 13:00:47,130 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
[2025-03-08 13:00:47,148 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-08 13:00:47,149 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-03-08 13:00:47,149 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-03-08 13:00:47,150 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-08 13:00:47,150 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-08 13:00:47,150 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-08 13:00:47,228 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-08 13:00:47,230 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-08 13:00:47,551 INFO  L1307  $ProcedureCfgBuilder]: dead code at ProgramPoint L200: havoc property_#t~ite27#1;havoc property_#t~bitwise26#1;
[2025-03-08 13:00:47,587 INFO  L?                        ?]: Removed 15 outVars from TransFormulas that were not future-live.
[2025-03-08 13:00:47,587 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-08 13:00:47,603 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-08 13:00:47,604 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-08 13:00:47,604 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 01:00:47 BoogieIcfgContainer
[2025-03-08 13:00:47,604 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-08 13:00:47,606 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-08 13:00:47,606 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-08 13:00:47,609 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-08 13:00:47,609 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 01:00:46" (1/3) ...
[2025-03-08 13:00:47,610 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afb103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 01:00:47, skipping insertion in model container
[2025-03-08 13:00:47,610 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 01:00:46" (2/3) ...
[2025-03-08 13:00:47,610 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afb103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 01:00:47, skipping insertion in model container
[2025-03-08 13:00:47,610 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 01:00:47" (3/3) ...
[2025-03-08 13:00:47,611 INFO  L128   eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i
[2025-03-08 13:00:47,621 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-08 13:00:47,624 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodestructure_filler-ps-cn_file-33.i that has 2 procedures, 111 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-08 13:00:47,669 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-08 13:00:47,680 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;@7997e8bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-08 13:00:47,680 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-08 13:00:47,684 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 111 states, 66 states have (on average 1.393939393939394) internal successors, (92), 67 states have internal predecessors, (92), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2025-03-08 13:00:47,697 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2025-03-08 13:00:47,697 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 13:00:47,698 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 13:00:47,698 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 13:00:47,701 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 13:00:47,702 INFO  L85        PathProgramCache]: Analyzing trace with hash 2037136080, now seen corresponding path program 1 times
[2025-03-08 13:00:47,706 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 13:00:47,707 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760012206]
[2025-03-08 13:00:47,707 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 13:00:47,707 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 13:00:47,806 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 257 statements into 1 equivalence classes.
[2025-03-08 13:00:47,827 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 257 of 257 statements.
[2025-03-08 13:00:47,828 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 13:00:47,828 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 13:00:47,998 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 82 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked.
[2025-03-08 13:00:47,998 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 13:00:47,999 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760012206]
[2025-03-08 13:00:48,000 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760012206] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-08 13:00:48,000 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928196761]
[2025-03-08 13:00:48,001 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 13:00:48,001 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-08 13:00:48,001 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-08 13:00:48,003 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)
[2025-03-08 13:00:48,004 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-08 13:00:48,081 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 257 statements into 1 equivalence classes.
[2025-03-08 13:00:48,161 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 257 of 257 statements.
[2025-03-08 13:00:48,162 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 13:00:48,162 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 13:00:48,164 INFO  L256         TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 1 conjuncts are in the unsatisfiable core
[2025-03-08 13:00:48,170 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-08 13:00:48,206 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 82 proven. 0 refuted. 0 times theorem prover too weak. 3362 trivial. 0 not checked.
[2025-03-08 13:00:48,206 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-08 13:00:48,206 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928196761] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 13:00:48,206 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-08 13:00:48,206 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2025-03-08 13:00:48,208 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354448598]
[2025-03-08 13:00:48,208 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 13:00:48,212 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-03-08 13:00:48,212 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 13:00:48,224 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-03-08 13:00:48,224 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-08 13:00:48,226 INFO  L87              Difference]: Start difference. First operand  has 111 states, 66 states have (on average 1.393939393939394) internal successors, (92), 67 states have internal predecessors, (92), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42)
[2025-03-08 13:00:48,259 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 13:00:48,260 INFO  L93              Difference]: Finished difference Result 214 states and 385 transitions.
[2025-03-08 13:00:48,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-03-08 13:00:48,262 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) Word has length 257
[2025-03-08 13:00:48,262 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 13:00:48,266 INFO  L225             Difference]: With dead ends: 214
[2025-03-08 13:00:48,267 INFO  L226             Difference]: Without dead ends: 106
[2025-03-08 13:00:48,269 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-08 13:00:48,271 INFO  L435           NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-03-08 13:00:48,272 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-03-08 13:00:48,282 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 106 states.
[2025-03-08 13:00:48,301 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106.
[2025-03-08 13:00:48,304 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 106 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 62 states have internal predecessors, (80), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42)
[2025-03-08 13:00:48,307 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 164 transitions.
[2025-03-08 13:00:48,311 INFO  L78                 Accepts]: Start accepts. Automaton has 106 states and 164 transitions. Word has length 257
[2025-03-08 13:00:48,312 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 13:00:48,312 INFO  L471      AbstractCegarLoop]: Abstraction has 106 states and 164 transitions.
[2025-03-08 13:00:48,312 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42)
[2025-03-08 13:00:48,314 INFO  L276                IsEmpty]: Start isEmpty. Operand 106 states and 164 transitions.
[2025-03-08 13:00:48,316 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 258
[2025-03-08 13:00:48,319 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 13:00:48,319 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 13:00:48,332 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-03-08 13:00:48,520 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
[2025-03-08 13:00:48,520 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 13:00:48,520 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 13:00:48,521 INFO  L85        PathProgramCache]: Analyzing trace with hash -2032474030, now seen corresponding path program 1 times
[2025-03-08 13:00:48,521 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 13:00:48,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982501268]
[2025-03-08 13:00:48,521 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 13:00:48,521 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 13:00:48,551 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 257 statements into 1 equivalence classes.
[2025-03-08 13:00:48,722 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 257 of 257 statements.
[2025-03-08 13:00:48,722 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 13:00:48,723 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 13:00:49,444 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2025-03-08 13:00:49,445 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 13:00:49,445 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982501268]
[2025-03-08 13:00:49,445 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982501268] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 13:00:49,446 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 13:00:49,446 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 13:00:49,446 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177937208]
[2025-03-08 13:00:49,446 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 13:00:49,447 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 13:00:49,448 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 13:00:49,449 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 13:00:49,450 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 13:00:49,450 INFO  L87              Difference]: Start difference. First operand 106 states and 164 transitions. Second operand  has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-08 13:00:49,815 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 13:00:49,816 INFO  L93              Difference]: Finished difference Result 317 states and 494 transitions.
[2025-03-08 13:00:49,816 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 13:00:49,816 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 257
[2025-03-08 13:00:49,817 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 13:00:49,819 INFO  L225             Difference]: With dead ends: 317
[2025-03-08 13:00:49,819 INFO  L226             Difference]: Without dead ends: 214
[2025-03-08 13:00:49,820 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 13:00:49,821 INFO  L435           NwaCegarLoop]: 146 mSDtfsCounter, 102 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-03-08 13:00:49,821 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 428 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-03-08 13:00:49,822 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 214 states.
[2025-03-08 13:00:49,851 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 200.
[2025-03-08 13:00:49,851 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 200 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 113 states have internal predecessors, (145), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84)
[2025-03-08 13:00:49,853 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 313 transitions.
[2025-03-08 13:00:49,854 INFO  L78                 Accepts]: Start accepts. Automaton has 200 states and 313 transitions. Word has length 257
[2025-03-08 13:00:49,854 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 13:00:49,854 INFO  L471      AbstractCegarLoop]: Abstraction has 200 states and 313 transitions.
[2025-03-08 13:00:49,855 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-08 13:00:49,855 INFO  L276                IsEmpty]: Start isEmpty. Operand 200 states and 313 transitions.
[2025-03-08 13:00:49,857 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 259
[2025-03-08 13:00:49,857 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 13:00:49,857 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 13:00:49,858 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-03-08 13:00:49,858 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 13:00:49,858 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 13:00:49,858 INFO  L85        PathProgramCache]: Analyzing trace with hash -1136225096, now seen corresponding path program 1 times
[2025-03-08 13:00:49,858 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 13:00:49,858 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382939681]
[2025-03-08 13:00:49,858 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 13:00:49,858 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 13:00:49,878 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 258 statements into 1 equivalence classes.
[2025-03-08 13:00:49,903 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 258 of 258 statements.
[2025-03-08 13:00:49,903 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 13:00:49,903 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 13:00:50,151 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2025-03-08 13:00:50,152 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 13:00:50,152 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382939681]
[2025-03-08 13:00:50,152 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382939681] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 13:00:50,152 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 13:00:50,152 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-03-08 13:00:50,152 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097648313]
[2025-03-08 13:00:50,152 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 13:00:50,153 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-03-08 13:00:50,153 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 13:00:50,153 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-03-08 13:00:50,153 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-03-08 13:00:50,153 INFO  L87              Difference]: Start difference. First operand 200 states and 313 transitions. Second operand  has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-08 13:00:50,387 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 13:00:50,387 INFO  L93              Difference]: Finished difference Result 326 states and 505 transitions.
[2025-03-08 13:00:50,388 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-03-08 13:00:50,388 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 258
[2025-03-08 13:00:50,389 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 13:00:50,390 INFO  L225             Difference]: With dead ends: 326
[2025-03-08 13:00:50,391 INFO  L226             Difference]: Without dead ends: 210
[2025-03-08 13:00:50,391 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-03-08 13:00:50,394 INFO  L435           NwaCegarLoop]: 146 mSDtfsCounter, 99 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-03-08 13:00:50,394 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 433 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-03-08 13:00:50,394 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 210 states.
[2025-03-08 13:00:50,432 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 201.
[2025-03-08 13:00:50,433 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 201 states, 114 states have (on average 1.2719298245614035) internal successors, (145), 114 states have internal predecessors, (145), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84)
[2025-03-08 13:00:50,434 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 313 transitions.
[2025-03-08 13:00:50,438 INFO  L78                 Accepts]: Start accepts. Automaton has 201 states and 313 transitions. Word has length 258
[2025-03-08 13:00:50,439 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 13:00:50,439 INFO  L471      AbstractCegarLoop]: Abstraction has 201 states and 313 transitions.
[2025-03-08 13:00:50,439 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-08 13:00:50,439 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 313 transitions.
[2025-03-08 13:00:50,441 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 260
[2025-03-08 13:00:50,442 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 13:00:50,443 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 13:00:50,443 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-03-08 13:00:50,443 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 13:00:50,444 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 13:00:50,444 INFO  L85        PathProgramCache]: Analyzing trace with hash -165363399, now seen corresponding path program 1 times
[2025-03-08 13:00:50,444 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 13:00:50,444 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425432581]
[2025-03-08 13:00:50,444 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 13:00:50,444 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 13:00:50,459 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 259 statements into 1 equivalence classes.
[2025-03-08 13:00:50,618 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 259 of 259 statements.
[2025-03-08 13:00:50,619 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 13:00:50,619 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 13:00:57,495 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked.
[2025-03-08 13:00:57,496 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 13:00:57,496 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425432581]
[2025-03-08 13:00:57,496 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425432581] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-08 13:00:57,496 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-03-08 13:00:57,496 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2025-03-08 13:00:57,496 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768278359]
[2025-03-08 13:00:57,496 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-08 13:00:57,497 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2025-03-08 13:00:57,497 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 13:00:57,497 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2025-03-08 13:00:57,497 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156
[2025-03-08 13:00:57,498 INFO  L87              Difference]: Start difference. First operand 201 states and 313 transitions. Second operand  has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-08 13:00:59,711 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 13:00:59,712 INFO  L93              Difference]: Finished difference Result 494 states and 745 transitions.
[2025-03-08 13:00:59,713 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2025-03-08 13:00:59,714 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 259
[2025-03-08 13:00:59,714 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 13:00:59,717 INFO  L225             Difference]: With dead ends: 494
[2025-03-08 13:00:59,717 INFO  L226             Difference]: Without dead ends: 391
[2025-03-08 13:00:59,719 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600
[2025-03-08 13:00:59,720 INFO  L435           NwaCegarLoop]: 270 mSDtfsCounter, 347 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1403 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2025-03-08 13:00:59,721 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1403 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2025-03-08 13:00:59,722 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 391 states.
[2025-03-08 13:00:59,771 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 338.
[2025-03-08 13:00:59,773 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 338 states, 207 states have (on average 1.289855072463768) internal successors, (267), 207 states have internal predecessors, (267), 126 states have call successors, (126), 4 states have call predecessors, (126), 4 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126)
[2025-03-08 13:00:59,777 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 519 transitions.
[2025-03-08 13:00:59,777 INFO  L78                 Accepts]: Start accepts. Automaton has 338 states and 519 transitions. Word has length 259
[2025-03-08 13:00:59,778 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 13:00:59,778 INFO  L471      AbstractCegarLoop]: Abstraction has 338 states and 519 transitions.
[2025-03-08 13:00:59,779 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 4.0) internal successors, (52), 13 states have internal predecessors, (52), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42)
[2025-03-08 13:00:59,779 INFO  L276                IsEmpty]: Start isEmpty. Operand 338 states and 519 transitions.
[2025-03-08 13:00:59,781 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 260
[2025-03-08 13:00:59,781 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 13:00:59,781 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 13:00:59,781 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-03-08 13:00:59,782 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 13:00:59,782 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 13:00:59,782 INFO  L85        PathProgramCache]: Analyzing trace with hash -361876904, now seen corresponding path program 1 times
[2025-03-08 13:00:59,783 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 13:00:59,783 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819031695]
[2025-03-08 13:00:59,783 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 13:00:59,783 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 13:00:59,811 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 259 statements into 1 equivalence classes.
[2025-03-08 13:00:59,941 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 259 of 259 statements.
[2025-03-08 13:00:59,942 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 13:00:59,942 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 13:01:00,105 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 87 proven. 36 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked.
[2025-03-08 13:01:00,105 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 13:01:00,105 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819031695]
[2025-03-08 13:01:00,106 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819031695] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-08 13:01:00,106 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188727433]
[2025-03-08 13:01:00,106 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 13:01:00,106 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-08 13:01:00,106 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-08 13:01:00,108 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)
[2025-03-08 13:01:00,110 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-03-08 13:01:00,159 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 259 statements into 1 equivalence classes.
[2025-03-08 13:01:00,214 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 259 of 259 statements.
[2025-03-08 13:01:00,214 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 13:01:00,214 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 13:01:00,217 INFO  L256         TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 6 conjuncts are in the unsatisfiable core
[2025-03-08 13:01:00,221 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-08 13:01:00,361 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 1491 proven. 36 refuted. 0 times theorem prover too weak. 1917 trivial. 0 not checked.
[2025-03-08 13:01:00,362 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2025-03-08 13:01:00,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 87 proven. 36 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked.
[2025-03-08 13:01:00,552 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188727433] provided 0 perfect and 2 imperfect interpolant sequences
[2025-03-08 13:01:00,553 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2025-03-08 13:01:00,553 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8
[2025-03-08 13:01:00,553 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678977085]
[2025-03-08 13:01:00,553 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2025-03-08 13:01:00,553 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2025-03-08 13:01:00,554 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-08 13:01:00,554 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2025-03-08 13:01:00,554 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2025-03-08 13:01:00,554 INFO  L87              Difference]: Start difference. First operand 338 states and 519 transitions. Second operand  has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67)
[2025-03-08 13:01:00,799 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-08 13:01:00,799 INFO  L93              Difference]: Finished difference Result 614 states and 926 transitions.
[2025-03-08 13:01:00,800 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2025-03-08 13:01:00,800 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) Word has length 259
[2025-03-08 13:01:00,801 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-08 13:01:00,803 INFO  L225             Difference]: With dead ends: 614
[2025-03-08 13:01:00,803 INFO  L226             Difference]: Without dead ends: 356
[2025-03-08 13:01:00,806 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110
[2025-03-08 13:01:00,806 INFO  L435           NwaCegarLoop]: 114 mSDtfsCounter, 219 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-03-08 13:01:00,806 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 256 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-03-08 13:01:00,807 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 356 states.
[2025-03-08 13:01:00,845 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 350.
[2025-03-08 13:01:00,846 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 350 states, 216 states have (on average 1.2638888888888888) internal successors, (273), 216 states have internal predecessors, (273), 126 states have call successors, (126), 7 states have call predecessors, (126), 7 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126)
[2025-03-08 13:01:00,848 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 525 transitions.
[2025-03-08 13:01:00,848 INFO  L78                 Accepts]: Start accepts. Automaton has 350 states and 525 transitions. Word has length 259
[2025-03-08 13:01:00,849 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-03-08 13:01:00,849 INFO  L471      AbstractCegarLoop]: Abstraction has 350 states and 525 transitions.
[2025-03-08 13:01:00,849 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 3 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67)
[2025-03-08 13:01:00,849 INFO  L276                IsEmpty]: Start isEmpty. Operand 350 states and 525 transitions.
[2025-03-08 13:01:00,850 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 261
[2025-03-08 13:01:00,850 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-08 13:01:00,851 INFO  L218           NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-03-08 13:01:00,858 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2025-03-08 13:01:01,051 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-08 13:01:01,051 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-08 13:01:01,052 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-08 13:01:01,052 INFO  L85        PathProgramCache]: Analyzing trace with hash -1720899328, now seen corresponding path program 1 times
[2025-03-08 13:01:01,052 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-08 13:01:01,052 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391986037]
[2025-03-08 13:01:01,052 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 13:01:01,052 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-08 13:01:01,062 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 260 statements into 1 equivalence classes.
[2025-03-08 13:01:01,134 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 260 of 260 statements.
[2025-03-08 13:01:01,134 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 13:01:01,134 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 13:01:04,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 3444 backedges. 6 proven. 117 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked.
[2025-03-08 13:01:04,761 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-08 13:01:04,761 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391986037]
[2025-03-08 13:01:04,761 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391986037] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-08 13:01:04,761 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486932110]
[2025-03-08 13:01:04,761 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-08 13:01:04,762 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-08 13:01:04,762 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-08 13:01:04,763 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-08 13:01:04,764 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2025-03-08 13:01:04,813 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 260 statements into 1 equivalence classes.
[2025-03-08 13:01:04,865 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 260 of 260 statements.
[2025-03-08 13:01:04,866 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-08 13:01:04,866 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-08 13:01:04,869 INFO  L256         TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 42 conjuncts are in the unsatisfiable core
[2025-03-08 13:01:04,874 INFO  L279         TraceCheckSpWp]: Computing forward predicates...