./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal40.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 551b0097
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal40.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 64bit --witnessprinter.graph.data.programhash 6aeb07c44bf14581bb0b319f795057f1cb31dbe6f17e4b3d36e674cf9d0ecd3c
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-551b009-m
[2025-01-09 06:52:53,672 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-01-09 06:52:53,717 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-01-09 06:52:53,721 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-01-09 06:52:53,721 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-01-09 06:52:53,742 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-01-09 06:52:53,742 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-01-09 06:52:53,742 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-01-09 06:52:53,743 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-01-09 06:52:53,743 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-01-09 06:52:53,743 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-01-09 06:52:53,743 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-01-09 06:52:53,743 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-01-09 06:52:53,744 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-01-09 06:52:53,744 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-01-09 06:52:53,744 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-01-09 06:52:53,744 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-01-09 06:52:53,744 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-01-09 06:52:53,744 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-01-09 06:52:53,745 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-01-09 06:52:53,745 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-01-09 06:52:53,745 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-01-09 06:52:53,745 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-01-09 06:52:53,745 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-01-09 06:52:53,745 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-01-09 06:52:53,745 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-01-09 06:52:53,745 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-01-09 06:52:53,745 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-01-09 06:52:53,745 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-01-09 06:52:53,746 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 06:52:53,746 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-01-09 06:52:53,746 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-01-09 06:52:53,746 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-01-09 06:52:53,746 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-01-09 06:52:53,746 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 06:52:53,746 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-01-09 06:52:53,746 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-01-09 06:52:53,747 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-01-09 06:52:53,747 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-01-09 06:52:53,747 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-01-09 06:52:53,747 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-01-09 06:52:53,747 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-01-09 06:52:53,747 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-01-09 06:52:53,747 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-01-09 06:52:53,747 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-01-09 06:52:53,747 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-jdk21/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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeb07c44bf14581bb0b319f795057f1cb31dbe6f17e4b3d36e674cf9d0ecd3c
[2025-01-09 06:52:53,943 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-01-09 06:52:53,948 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-01-09 06:52:53,951 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-01-09 06:52:53,952 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-01-09 06:52:53,952 INFO  L274        PluginConnector]: CDTParser initialized
[2025-01-09 06:52:53,953 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal40.c
[2025-01-09 06:52:55,062 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b36407777/cf1963e333a54173867ecfc95531cd2f/FLAG8d011f91a
[2025-01-09 06:52:55,485 INFO  L384              CDTParser]: Found 1 translation units.
[2025-01-09 06:52:55,486 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal40.c
[2025-01-09 06:52:55,515 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b36407777/cf1963e333a54173867ecfc95531cd2f/FLAG8d011f91a
[2025-01-09 06:52:55,529 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b36407777/cf1963e333a54173867ecfc95531cd2f
[2025-01-09 06:52:55,534 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-01-09 06:52:55,535 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-01-09 06:52:55,536 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-01-09 06:52:55,536 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-01-09 06:52:55,540 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-01-09 06:52:55,541 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:52:55" (1/1) ...
[2025-01-09 06:52:55,541 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c99a647 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:55, skipping insertion in model container
[2025-01-09 06:52:55,541 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 06:52:55" (1/1) ...
[2025-01-09 06:52:55,601 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-01-09 06:52:55,743 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal40.c[1245,1258]
[2025-01-09 06:52:56,167 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-01-09 06:52:56,173 INFO  L200         MainTranslator]: Completed pre-run
[2025-01-09 06:52:56,180 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal40.c[1245,1258]
[2025-01-09 06:52:56,403 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-01-09 06:52:56,413 INFO  L204         MainTranslator]: Completed translation
[2025-01-09 06:52:56,414 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56 WrapperNode
[2025-01-09 06:52:56,414 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-01-09 06:52:56,414 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-01-09 06:52:56,414 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-01-09 06:52:56,415 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-01-09 06:52:56,418 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:56,503 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:57,644 INFO  L138                Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13134
[2025-01-09 06:52:57,645 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-01-09 06:52:57,645 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-01-09 06:52:57,645 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-01-09 06:52:57,645 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-01-09 06:52:57,652 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:57,654 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:58,095 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:58,282 INFO  L175           MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0].
[2025-01-09 06:52:58,282 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:58,283 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:58,624 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:58,659 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:58,688 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:58,769 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:58,810 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:58,970 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-01-09 06:52:58,970 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-01-09 06:52:58,971 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-01-09 06:52:58,971 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-01-09 06:52:58,972 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (1/1) ...
[2025-01-09 06:52:58,975 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 06:52:58,983 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-01-09 06:52:58,994 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-01-09 06:52:58,999 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-01-09 06:52:59,013 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-01-09 06:52:59,013 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-01-09 06:52:59,013 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-01-09 06:52:59,013 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-01-09 06:52:59,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-01-09 06:52:59,572 INFO  L234             CfgBuilder]: Building ICFG
[2025-01-09 06:52:59,574 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-01-09 06:53:15,911 INFO  L?                        ?]: Removed 7120 outVars from TransFormulas that were not future-live.
[2025-01-09 06:53:15,911 INFO  L283             CfgBuilder]: Performing block encoding
[2025-01-09 06:53:15,975 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-01-09 06:53:15,978 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2025-01-09 06:53:15,979 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:53:15 BoogieIcfgContainer
[2025-01-09 06:53:15,979 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-01-09 06:53:15,980 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-01-09 06:53:15,980 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-01-09 06:53:15,983 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-01-09 06:53:15,984 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 06:52:55" (1/3) ...
[2025-01-09 06:53:15,984 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158e6a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:53:15, skipping insertion in model container
[2025-01-09 06:53:15,984 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 06:52:56" (2/3) ...
[2025-01-09 06:53:15,984 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158e6a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 06:53:15, skipping insertion in model container
[2025-01-09 06:53:15,984 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 06:53:15" (3/3) ...
[2025-01-09 06:53:15,985 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal40.c
[2025-01-09 06:53:15,995 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-01-09 06:53:15,997 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cal40.c that has 1 procedures, 4308 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-01-09 06:53:16,095 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-01-09 06:53:16,103 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;@14119a69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-01-09 06:53:16,104 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-01-09 06:53:16,119 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4308 states, 4306 states have (on average 1.5) internal successors, (6459), 4307 states have internal predecessors, (6459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:16,202 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1966
[2025-01-09 06:53:16,203 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:16,205 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 06:53:16,205 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:16,209 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:16,210 INFO  L85        PathProgramCache]: Analyzing trace with hash 1027277039, now seen corresponding path program 1 times
[2025-01-09 06:53:16,215 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:16,216 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869213086]
[2025-01-09 06:53:16,216 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:16,217 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:16,546 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1965 statements into 1 equivalence classes.
[2025-01-09 06:53:17,661 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1965 of 1965 statements.
[2025-01-09 06:53:17,662 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:17,662 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 06:53:23,531 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 06:53:23,532 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 06:53:23,533 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869213086]
[2025-01-09 06:53:23,533 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869213086] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 06:53:23,534 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 06:53:23,534 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 06:53:23,535 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020687228]
[2025-01-09 06:53:23,535 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 06:53:23,541 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 06:53:23,542 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 06:53:23,558 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 06:53:23,558 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:53:23,567 INFO  L87              Difference]: Start difference. First operand  has 4308 states, 4306 states have (on average 1.5) internal successors, (6459), 4307 states have internal predecessors, (6459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:24,305 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 06:53:24,306 INFO  L93              Difference]: Finished difference Result 8514 states and 12769 transitions.
[2025-01-09 06:53:24,307 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 06:53:24,309 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1965
[2025-01-09 06:53:24,315 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 06:53:24,339 INFO  L225             Difference]: With dead ends: 8514
[2025-01-09 06:53:24,340 INFO  L226             Difference]: Without dead ends: 4304
[2025-01-09 06:53:24,349 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-01-09 06:53:24,351 INFO  L435           NwaCegarLoop]: 6175 mSDtfsCounter, 4675 mSDsluCounter, 6174 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4675 SdHoareTripleChecker+Valid, 12349 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2025-01-09 06:53:24,351 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4675 Valid, 12349 Invalid, 555 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2025-01-09 06:53:24,368 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4304 states.
[2025-01-09 06:53:24,459 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4304.
[2025-01-09 06:53:24,467 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4304 states, 4303 states have (on average 1.499419009993028) internal successors, (6452), 4303 states have internal predecessors, (6452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:24,482 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 6452 transitions.
[2025-01-09 06:53:24,484 INFO  L78                 Accepts]: Start accepts. Automaton has 4304 states and 6452 transitions. Word has length 1965
[2025-01-09 06:53:24,487 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 06:53:24,488 INFO  L471      AbstractCegarLoop]: Abstraction has 4304 states and 6452 transitions.
[2025-01-09 06:53:24,489 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:24,490 INFO  L276                IsEmpty]: Start isEmpty. Operand 4304 states and 6452 transitions.
[2025-01-09 06:53:24,547 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1967
[2025-01-09 06:53:24,548 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:24,549 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 06:53:24,549 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-01-09 06:53:24,549 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:24,550 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:24,551 INFO  L85        PathProgramCache]: Analyzing trace with hash -417985080, now seen corresponding path program 1 times
[2025-01-09 06:53:24,551 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:24,551 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554334105]
[2025-01-09 06:53:24,552 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:24,552 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:24,826 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1966 statements into 1 equivalence classes.
[2025-01-09 06:53:25,565 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1966 of 1966 statements.
[2025-01-09 06:53:25,565 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:25,565 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 06:53:28,244 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 06:53:28,247 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 06:53:28,247 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554334105]
[2025-01-09 06:53:28,247 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554334105] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 06:53:28,247 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 06:53:28,247 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 06:53:28,248 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230847055]
[2025-01-09 06:53:28,248 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 06:53:28,251 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 06:53:28,252 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 06:53:28,253 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 06:53:28,254 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-01-09 06:53:28,255 INFO  L87              Difference]: Start difference. First operand 4304 states and 6452 transitions. Second operand  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:28,766 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 06:53:28,767 INFO  L93              Difference]: Finished difference Result 8510 states and 12758 transitions.
[2025-01-09 06:53:28,767 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 06:53:28,768 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1966
[2025-01-09 06:53:28,772 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 06:53:28,784 INFO  L225             Difference]: With dead ends: 8510
[2025-01-09 06:53:28,785 INFO  L226             Difference]: Without dead ends: 4304
[2025-01-09 06:53:28,789 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2025-01-09 06:53:28,790 INFO  L435           NwaCegarLoop]: 6175 mSDtfsCounter, 11107 mSDsluCounter, 6174 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11107 SdHoareTripleChecker+Valid, 12349 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-01-09 06:53:28,790 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11107 Valid, 12349 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-01-09 06:53:28,852 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4304 states.
[2025-01-09 06:53:28,897 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4304.
[2025-01-09 06:53:28,902 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4304 states, 4303 states have (on average 1.4991866139902394) internal successors, (6451), 4303 states have internal predecessors, (6451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:28,911 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 6451 transitions.
[2025-01-09 06:53:28,912 INFO  L78                 Accepts]: Start accepts. Automaton has 4304 states and 6451 transitions. Word has length 1966
[2025-01-09 06:53:28,913 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 06:53:28,914 INFO  L471      AbstractCegarLoop]: Abstraction has 4304 states and 6451 transitions.
[2025-01-09 06:53:28,914 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:28,914 INFO  L276                IsEmpty]: Start isEmpty. Operand 4304 states and 6451 transitions.
[2025-01-09 06:53:28,934 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1968
[2025-01-09 06:53:28,935 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:28,935 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 06:53:28,936 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-01-09 06:53:28,936 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:28,940 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:28,940 INFO  L85        PathProgramCache]: Analyzing trace with hash -1925929384, now seen corresponding path program 1 times
[2025-01-09 06:53:28,941 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:28,941 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136058902]
[2025-01-09 06:53:28,941 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:28,941 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:29,187 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1967 statements into 1 equivalence classes.
[2025-01-09 06:53:29,506 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1967 of 1967 statements.
[2025-01-09 06:53:29,506 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:29,506 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 06:53:33,333 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 06:53:33,333 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 06:53:33,334 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136058902]
[2025-01-09 06:53:33,334 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136058902] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 06:53:33,334 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 06:53:33,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 06:53:33,334 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469864447]
[2025-01-09 06:53:33,334 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 06:53:33,335 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 06:53:33,336 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 06:53:33,337 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 06:53:33,337 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:53:33,337 INFO  L87              Difference]: Start difference. First operand 4304 states and 6451 transitions. Second operand  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:33,414 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 06:53:33,414 INFO  L93              Difference]: Finished difference Result 4308 states and 6455 transitions.
[2025-01-09 06:53:33,414 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 06:53:33,415 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1967
[2025-01-09 06:53:33,418 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 06:53:33,430 INFO  L225             Difference]: With dead ends: 4308
[2025-01-09 06:53:33,430 INFO  L226             Difference]: Without dead ends: 4306
[2025-01-09 06:53:33,432 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:53:33,432 INFO  L435           NwaCegarLoop]: 6449 mSDtfsCounter, 0 mSDsluCounter, 12892 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19341 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 06:53:33,433 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 06:53:33,437 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4306 states.
[2025-01-09 06:53:33,487 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 4306.
[2025-01-09 06:53:33,498 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4306 states, 4305 states have (on average 1.4989547038327526) internal successors, (6453), 4305 states have internal predecessors, (6453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:33,509 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 6453 transitions.
[2025-01-09 06:53:33,509 INFO  L78                 Accepts]: Start accepts. Automaton has 4306 states and 6453 transitions. Word has length 1967
[2025-01-09 06:53:33,511 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 06:53:33,512 INFO  L471      AbstractCegarLoop]: Abstraction has 4306 states and 6453 transitions.
[2025-01-09 06:53:33,512 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:33,512 INFO  L276                IsEmpty]: Start isEmpty. Operand 4306 states and 6453 transitions.
[2025-01-09 06:53:33,538 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1969
[2025-01-09 06:53:33,539 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:33,540 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 06:53:33,540 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-01-09 06:53:33,541 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:33,542 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:33,542 INFO  L85        PathProgramCache]: Analyzing trace with hash 427439143, now seen corresponding path program 1 times
[2025-01-09 06:53:33,543 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:33,543 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821266202]
[2025-01-09 06:53:33,543 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:33,543 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:33,792 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1968 statements into 1 equivalence classes.
[2025-01-09 06:53:34,455 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1968 of 1968 statements.
[2025-01-09 06:53:34,455 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:34,455 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 06:53:37,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 06:53:37,115 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 06:53:37,115 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821266202]
[2025-01-09 06:53:37,115 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821266202] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 06:53:37,116 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 06:53:37,116 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 06:53:37,116 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076035413]
[2025-01-09 06:53:37,116 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 06:53:37,117 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 06:53:37,117 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 06:53:37,119 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 06:53:37,119 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:53:37,120 INFO  L87              Difference]: Start difference. First operand 4306 states and 6453 transitions. Second operand  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:37,211 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 06:53:37,211 INFO  L93              Difference]: Finished difference Result 8516 states and 12763 transitions.
[2025-01-09 06:53:37,212 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 06:53:37,214 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1968
[2025-01-09 06:53:37,216 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 06:53:37,227 INFO  L225             Difference]: With dead ends: 8516
[2025-01-09 06:53:37,227 INFO  L226             Difference]: Without dead ends: 4308
[2025-01-09 06:53:37,231 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:53:37,232 INFO  L435           NwaCegarLoop]: 6449 mSDtfsCounter, 0 mSDsluCounter, 12888 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19337 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 06:53:37,232 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19337 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 06:53:37,237 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4308 states.
[2025-01-09 06:53:37,276 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 4308.
[2025-01-09 06:53:37,280 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4308 states, 4307 states have (on average 1.4987230090550268) internal successors, (6455), 4307 states have internal predecessors, (6455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:37,287 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4308 states to 4308 states and 6455 transitions.
[2025-01-09 06:53:37,288 INFO  L78                 Accepts]: Start accepts. Automaton has 4308 states and 6455 transitions. Word has length 1968
[2025-01-09 06:53:37,289 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 06:53:37,290 INFO  L471      AbstractCegarLoop]: Abstraction has 4308 states and 6455 transitions.
[2025-01-09 06:53:37,290 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:37,290 INFO  L276                IsEmpty]: Start isEmpty. Operand 4308 states and 6455 transitions.
[2025-01-09 06:53:37,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1970
[2025-01-09 06:53:37,309 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:37,310 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 06:53:37,310 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-01-09 06:53:37,310 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:37,311 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:37,312 INFO  L85        PathProgramCache]: Analyzing trace with hash -732241647, now seen corresponding path program 1 times
[2025-01-09 06:53:37,312 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:37,312 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516846449]
[2025-01-09 06:53:37,312 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:37,312 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:37,554 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1969 statements into 1 equivalence classes.
[2025-01-09 06:53:42,395 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1969 of 1969 statements.
[2025-01-09 06:53:42,395 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:42,395 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 06:53:46,152 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 06:53:46,152 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 06:53:46,152 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516846449]
[2025-01-09 06:53:46,153 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516846449] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 06:53:46,153 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 06:53:46,153 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 06:53:46,153 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536341753]
[2025-01-09 06:53:46,153 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 06:53:46,154 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 06:53:46,154 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 06:53:46,155 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 06:53:46,156 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-01-09 06:53:46,156 INFO  L87              Difference]: Start difference. First operand 4308 states and 6455 transitions. Second operand  has 5 states, 5 states have (on average 393.8) internal successors, (1969), 5 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:46,261 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 06:53:46,262 INFO  L93              Difference]: Finished difference Result 8521 states and 12769 transitions.
[2025-01-09 06:53:46,262 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-01-09 06:53:46,263 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 393.8) internal successors, (1969), 5 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1969
[2025-01-09 06:53:46,263 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 06:53:46,273 INFO  L225             Difference]: With dead ends: 8521
[2025-01-09 06:53:46,274 INFO  L226             Difference]: Without dead ends: 4311
[2025-01-09 06:53:46,279 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-01-09 06:53:46,280 INFO  L435           NwaCegarLoop]: 6448 mSDtfsCounter, 13 mSDsluCounter, 19313 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 25761 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 06:53:46,281 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 25761 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 06:53:46,286 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4311 states.
[2025-01-09 06:53:46,328 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4311 to 4311.
[2025-01-09 06:53:46,333 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4311 states, 4310 states have (on average 1.4983758700696055) internal successors, (6458), 4310 states have internal predecessors, (6458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:46,338 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4311 states to 4311 states and 6458 transitions.
[2025-01-09 06:53:46,338 INFO  L78                 Accepts]: Start accepts. Automaton has 4311 states and 6458 transitions. Word has length 1969
[2025-01-09 06:53:46,338 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 06:53:46,338 INFO  L471      AbstractCegarLoop]: Abstraction has 4311 states and 6458 transitions.
[2025-01-09 06:53:46,339 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 393.8) internal successors, (1969), 5 states have internal predecessors, (1969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:46,339 INFO  L276                IsEmpty]: Start isEmpty. Operand 4311 states and 6458 transitions.
[2025-01-09 06:53:46,359 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1971
[2025-01-09 06:53:46,359 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:46,360 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 06:53:46,360 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-01-09 06:53:46,360 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:46,361 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:46,362 INFO  L85        PathProgramCache]: Analyzing trace with hash 1873151589, now seen corresponding path program 1 times
[2025-01-09 06:53:46,362 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:46,362 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271552507]
[2025-01-09 06:53:46,363 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:46,364 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:46,588 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1970 statements into 1 equivalence classes.
[2025-01-09 06:53:49,523 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1970 of 1970 statements.
[2025-01-09 06:53:49,524 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:49,524 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 06:53:52,547 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 06:53:52,548 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 06:53:52,548 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271552507]
[2025-01-09 06:53:52,548 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271552507] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 06:53:52,548 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 06:53:52,548 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 06:53:52,548 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371987220]
[2025-01-09 06:53:52,548 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 06:53:52,549 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 06:53:52,549 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 06:53:52,550 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 06:53:52,550 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:53:52,551 INFO  L87              Difference]: Start difference. First operand 4311 states and 6458 transitions. Second operand  has 4 states, 4 states have (on average 492.5) internal successors, (1970), 4 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:52,915 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 06:53:52,915 INFO  L93              Difference]: Finished difference Result 11888 states and 17815 transitions.
[2025-01-09 06:53:52,915 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 06:53:52,916 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 492.5) internal successors, (1970), 4 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1970
[2025-01-09 06:53:52,918 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 06:53:52,937 INFO  L225             Difference]: With dead ends: 11888
[2025-01-09 06:53:52,938 INFO  L226             Difference]: Without dead ends: 4311
[2025-01-09 06:53:52,946 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:53:52,947 INFO  L435           NwaCegarLoop]: 6416 mSDtfsCounter, 3303 mSDsluCounter, 12602 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3303 SdHoareTripleChecker+Valid, 19018 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-01-09 06:53:52,948 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [3303 Valid, 19018 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-01-09 06:53:52,953 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4311 states.
[2025-01-09 06:53:52,990 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4311 to 4311.
[2025-01-09 06:53:52,995 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4311 states, 4310 states have (on average 1.4981438515081207) internal successors, (6457), 4310 states have internal predecessors, (6457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:53,000 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4311 states to 4311 states and 6457 transitions.
[2025-01-09 06:53:53,000 INFO  L78                 Accepts]: Start accepts. Automaton has 4311 states and 6457 transitions. Word has length 1970
[2025-01-09 06:53:53,000 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 06:53:53,000 INFO  L471      AbstractCegarLoop]: Abstraction has 4311 states and 6457 transitions.
[2025-01-09 06:53:53,001 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 492.5) internal successors, (1970), 4 states have internal predecessors, (1970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:53:53,001 INFO  L276                IsEmpty]: Start isEmpty. Operand 4311 states and 6457 transitions.
[2025-01-09 06:53:53,021 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1972
[2025-01-09 06:53:53,021 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:53:53,022 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 06:53:53,022 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-01-09 06:53:53,023 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:53:53,024 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:53:53,024 INFO  L85        PathProgramCache]: Analyzing trace with hash 1234828444, now seen corresponding path program 1 times
[2025-01-09 06:53:53,024 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:53:53,024 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171145561]
[2025-01-09 06:53:53,024 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:53:53,025 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:53:53,255 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1971 statements into 1 equivalence classes.
[2025-01-09 06:53:59,462 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1971 of 1971 statements.
[2025-01-09 06:53:59,462 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:53:59,462 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 06:54:02,540 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 06:54:02,541 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 06:54:02,541 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171145561]
[2025-01-09 06:54:02,541 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171145561] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 06:54:02,541 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 06:54:02,541 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 06:54:02,541 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293949972]
[2025-01-09 06:54:02,541 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 06:54:02,542 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 06:54:02,542 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 06:54:02,543 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 06:54:02,543 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:54:02,543 INFO  L87              Difference]: Start difference. First operand 4311 states and 6457 transitions. Second operand  has 4 states, 4 states have (on average 492.75) internal successors, (1971), 4 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:54:02,882 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 06:54:02,882 INFO  L93              Difference]: Finished difference Result 8524 states and 12768 transitions.
[2025-01-09 06:54:02,882 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 06:54:02,883 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 492.75) internal successors, (1971), 4 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1971
[2025-01-09 06:54:02,887 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 06:54:02,892 INFO  L225             Difference]: With dead ends: 8524
[2025-01-09 06:54:02,893 INFO  L226             Difference]: Without dead ends: 4311
[2025-01-09 06:54:02,896 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-01-09 06:54:02,897 INFO  L435           NwaCegarLoop]: 6190 mSDtfsCounter, 4563 mSDsluCounter, 6187 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4563 SdHoareTripleChecker+Valid, 12377 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-01-09 06:54:02,897 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4563 Valid, 12377 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-01-09 06:54:02,901 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4311 states.
[2025-01-09 06:54:02,935 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4311 to 4311.
[2025-01-09 06:54:02,939 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4311 states, 4310 states have (on average 1.4979118329466357) internal successors, (6456), 4310 states have internal predecessors, (6456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:54:02,943 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4311 states to 4311 states and 6456 transitions.
[2025-01-09 06:54:02,943 INFO  L78                 Accepts]: Start accepts. Automaton has 4311 states and 6456 transitions. Word has length 1971
[2025-01-09 06:54:02,944 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 06:54:02,944 INFO  L471      AbstractCegarLoop]: Abstraction has 4311 states and 6456 transitions.
[2025-01-09 06:54:02,945 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 492.75) internal successors, (1971), 4 states have internal predecessors, (1971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 06:54:02,945 INFO  L276                IsEmpty]: Start isEmpty. Operand 4311 states and 6456 transitions.
[2025-01-09 06:54:02,963 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1973
[2025-01-09 06:54:02,964 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 06:54:02,965 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2025-01-09 06:54:02,965 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-01-09 06:54:02,965 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 06:54:02,966 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 06:54:02,966 INFO  L85        PathProgramCache]: Analyzing trace with hash -1297066280, now seen corresponding path program 1 times
[2025-01-09 06:54:02,966 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 06:54:02,966 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957367542]
[2025-01-09 06:54:02,967 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 06:54:02,967 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 06:54:03,171 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1972 statements into 1 equivalence classes.
[2025-01-09 06:54:09,998 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1972 of 1972 statements.
[2025-01-09 06:54:09,998 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 06:54:09,998 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat