./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.1.prop3-func-interl.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.needham.1.prop3-func-interl.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 afe726ff4bfcb006fa1921d1acd83593e17d3b3df66156bb7f2c9bf761f68906
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-551b009-m
[2025-01-09 07:41:05,432 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-01-09 07:41:05,490 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-01-09 07:41:05,496 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-01-09 07:41:05,497 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-01-09 07:41:05,516 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-01-09 07:41:05,517 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-01-09 07:41:05,517 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-01-09 07:41:05,517 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-01-09 07:41:05,517 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-01-09 07:41:05,517 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-01-09 07:41:05,517 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-01-09 07:41:05,517 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-01-09 07:41:05,517 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-01-09 07:41:05,517 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-01-09 07:41:05,517 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-01-09 07:41:05,517 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-01-09 07:41:05,517 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-01-09 07:41:05,517 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-01-09 07:41:05,518 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 07:41:05,518 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 07:41:05,518 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-01-09 07:41:05,518 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-01-09 07:41:05,519 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-01-09 07:41:05,519 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-01-09 07:41:05,519 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-01-09 07:41:05,519 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-01-09 07:41:05,519 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-01-09 07:41:05,519 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-01-09 07:41:05,519 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 -> afe726ff4bfcb006fa1921d1acd83593e17d3b3df66156bb7f2c9bf761f68906
[2025-01-09 07:41:05,746 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-01-09 07:41:05,751 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-01-09 07:41:05,753 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-01-09 07:41:05,753 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-01-09 07:41:05,754 INFO  L274        PluginConnector]: CDTParser initialized
[2025-01-09 07:41:05,754 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.1.prop3-func-interl.c
[2025-01-09 07:41:06,988 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b21070263/f02a2054257a4ff287f3dce97bbd6ca5/FLAG6bd678b2a
[2025-01-09 07:41:07,363 INFO  L384              CDTParser]: Found 1 translation units.
[2025-01-09 07:41:07,364 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.1.prop3-func-interl.c
[2025-01-09 07:41:07,378 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b21070263/f02a2054257a4ff287f3dce97bbd6ca5/FLAG6bd678b2a
[2025-01-09 07:41:07,567 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b21070263/f02a2054257a4ff287f3dce97bbd6ca5
[2025-01-09 07:41:07,569 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-01-09 07:41:07,570 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-01-09 07:41:07,572 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-01-09 07:41:07,572 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-01-09 07:41:07,575 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-01-09 07:41:07,576 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:41:07" (1/1) ...
[2025-01-09 07:41:07,580 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c31941c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:07, skipping insertion in model container
[2025-01-09 07:41:07,580 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:41:07" (1/1) ...
[2025-01-09 07:41:07,625 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-01-09 07:41:07,742 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.needham.1.prop3-func-interl.c[1174,1187]
[2025-01-09 07:41:08,122 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-01-09 07:41:08,131 INFO  L200         MainTranslator]: Completed pre-run
[2025-01-09 07:41:08,139 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.needham.1.prop3-func-interl.c[1174,1187]
[2025-01-09 07:41:08,366 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-01-09 07:41:08,377 INFO  L204         MainTranslator]: Completed translation
[2025-01-09 07:41:08,379 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08 WrapperNode
[2025-01-09 07:41:08,379 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-01-09 07:41:08,380 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-01-09 07:41:08,380 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-01-09 07:41:08,380 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-01-09 07:41:08,385 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:08,441 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:09,148 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 10392
[2025-01-09 07:41:09,149 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-01-09 07:41:09,150 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-01-09 07:41:09,150 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-01-09 07:41:09,150 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-01-09 07:41:09,156 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:09,156 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:09,296 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:09,537 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2025-01-09 07:41:09,537 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:09,537 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:09,723 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:09,750 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:09,809 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:09,885 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:09,945 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:10,113 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-01-09 07:41:10,115 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-01-09 07:41:10,115 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-01-09 07:41:10,115 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-01-09 07:41:10,116 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (1/1) ...
[2025-01-09 07:41:10,120 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 07:41:10,147 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-01-09 07:41:10,158 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 07:41:10,160 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 07:41:10,190 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-01-09 07:41:10,190 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-01-09 07:41:10,190 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-01-09 07:41:10,190 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-01-09 07:41:10,697 INFO  L234             CfgBuilder]: Building ICFG
[2025-01-09 07:41:10,699 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-01-09 07:41:21,160 INFO  L?                        ?]: Removed 5597 outVars from TransFormulas that were not future-live.
[2025-01-09 07:41:21,160 INFO  L283             CfgBuilder]: Performing block encoding
[2025-01-09 07:41:21,225 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-01-09 07:41:21,225 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2025-01-09 07:41:21,225 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:41:21 BoogieIcfgContainer
[2025-01-09 07:41:21,225 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-01-09 07:41:21,230 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-01-09 07:41:21,230 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-01-09 07:41:21,233 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-01-09 07:41:21,234 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 07:41:07" (1/3) ...
[2025-01-09 07:41:21,234 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d00408d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:41:21, skipping insertion in model container
[2025-01-09 07:41:21,234 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:41:08" (2/3) ...
[2025-01-09 07:41:21,234 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d00408d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:41:21, skipping insertion in model container
[2025-01-09 07:41:21,234 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:41:21" (3/3) ...
[2025-01-09 07:41:21,235 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.needham.1.prop3-func-interl.c
[2025-01-09 07:41:21,246 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-01-09 07:41:21,248 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.needham.1.prop3-func-interl.c that has 1 procedures, 3772 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-01-09 07:41:21,338 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-01-09 07:41:21,348 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;@72c8a6d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-01-09 07:41:21,348 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-01-09 07:41:21,361 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3772 states, 3770 states have (on average 1.5037135278514588) internal successors, (5669), 3771 states have internal predecessors, (5669), 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 07:41:21,371 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 160
[2025-01-09 07:41:21,372 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:21,372 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]
[2025-01-09 07:41:21,373 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:21,377 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:21,377 INFO  L85        PathProgramCache]: Analyzing trace with hash -1114018784, now seen corresponding path program 1 times
[2025-01-09 07:41:21,383 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:21,386 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465529524]
[2025-01-09 07:41:21,386 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:21,386 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:21,493 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes.
[2025-01-09 07:41:21,586 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements.
[2025-01-09 07:41:21,587 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:21,587 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:22,286 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 07:41:22,287 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:22,287 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465529524]
[2025-01-09 07:41:22,287 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465529524] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:22,288 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:22,288 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 07:41:22,289 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318508238]
[2025-01-09 07:41:22,290 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:22,292 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 07:41:22,292 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:22,307 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 07:41:22,308 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 07:41:22,317 INFO  L87              Difference]: Start difference. First operand  has 3772 states, 3770 states have (on average 1.5037135278514588) internal successors, (5669), 3771 states have internal predecessors, (5669), 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 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 07:41:22,557 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:22,557 INFO  L93              Difference]: Finished difference Result 7409 states and 11139 transitions.
[2025-01-09 07:41:22,558 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:41:22,559 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 159
[2025-01-09 07:41:22,560 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:22,587 INFO  L225             Difference]: With dead ends: 7409
[2025-01-09 07:41:22,587 INFO  L226             Difference]: Without dead ends: 3771
[2025-01-09 07:41:22,597 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 07:41:22,598 INFO  L435           NwaCegarLoop]: 5663 mSDtfsCounter, 0 mSDsluCounter, 11320 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16983 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 07:41:22,600 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16983 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:41:22,617 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3771 states.
[2025-01-09 07:41:22,728 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3771 to 3771.
[2025-01-09 07:41:22,734 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3771 states, 3770 states have (on average 1.503183023872679) internal successors, (5667), 3770 states have internal predecessors, (5667), 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 07:41:22,747 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3771 states to 3771 states and 5667 transitions.
[2025-01-09 07:41:22,748 INFO  L78                 Accepts]: Start accepts. Automaton has 3771 states and 5667 transitions. Word has length 159
[2025-01-09 07:41:22,749 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:22,749 INFO  L471      AbstractCegarLoop]: Abstraction has 3771 states and 5667 transitions.
[2025-01-09 07:41:22,749 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 39.75) internal successors, (159), 4 states have internal predecessors, (159), 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 07:41:22,749 INFO  L276                IsEmpty]: Start isEmpty. Operand 3771 states and 5667 transitions.
[2025-01-09 07:41:22,751 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 161
[2025-01-09 07:41:22,751 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:22,751 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]
[2025-01-09 07:41:22,751 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-01-09 07:41:22,751 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:22,752 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:22,752 INFO  L85        PathProgramCache]: Analyzing trace with hash -173147782, now seen corresponding path program 1 times
[2025-01-09 07:41:22,752 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:22,752 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494014741]
[2025-01-09 07:41:22,752 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:22,752 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:22,811 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes.
[2025-01-09 07:41:22,845 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements.
[2025-01-09 07:41:22,847 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:22,847 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:23,089 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 07:41:23,090 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:23,090 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494014741]
[2025-01-09 07:41:23,090 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494014741] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:23,090 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:23,090 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 07:41:23,090 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53193562]
[2025-01-09 07:41:23,090 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:23,091 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 07:41:23,092 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:23,092 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 07:41:23,092 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 07:41:23,093 INFO  L87              Difference]: Start difference. First operand 3771 states and 5667 transitions. Second operand  has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 07:41:23,187 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:23,188 INFO  L93              Difference]: Finished difference Result 7410 states and 11137 transitions.
[2025-01-09 07:41:23,188 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:41:23,188 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 160
[2025-01-09 07:41:23,190 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:23,200 INFO  L225             Difference]: With dead ends: 7410
[2025-01-09 07:41:23,200 INFO  L226             Difference]: Without dead ends: 3773
[2025-01-09 07:41:23,204 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 07:41:23,205 INFO  L435           NwaCegarLoop]: 5663 mSDtfsCounter, 0 mSDsluCounter, 11316 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16979 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 07:41:23,205 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16979 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:41:23,210 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3773 states.
[2025-01-09 07:41:23,254 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3773 to 3773.
[2025-01-09 07:41:23,259 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3773 states, 3772 states have (on average 1.502916224814422) internal successors, (5669), 3772 states have internal predecessors, (5669), 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 07:41:23,269 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3773 states to 3773 states and 5669 transitions.
[2025-01-09 07:41:23,269 INFO  L78                 Accepts]: Start accepts. Automaton has 3773 states and 5669 transitions. Word has length 160
[2025-01-09 07:41:23,269 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:23,270 INFO  L471      AbstractCegarLoop]: Abstraction has 3773 states and 5669 transitions.
[2025-01-09 07:41:23,271 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 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 07:41:23,271 INFO  L276                IsEmpty]: Start isEmpty. Operand 3773 states and 5669 transitions.
[2025-01-09 07:41:23,272 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 162
[2025-01-09 07:41:23,273 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:23,273 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]
[2025-01-09 07:41:23,276 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-01-09 07:41:23,276 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:23,277 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:23,277 INFO  L85        PathProgramCache]: Analyzing trace with hash 2124388409, now seen corresponding path program 1 times
[2025-01-09 07:41:23,277 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:23,277 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140032436]
[2025-01-09 07:41:23,277 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:23,277 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:23,327 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes.
[2025-01-09 07:41:23,350 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements.
[2025-01-09 07:41:23,350 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:23,350 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:23,541 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 07:41:23,541 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:23,542 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140032436]
[2025-01-09 07:41:23,542 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140032436] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:23,542 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:23,542 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 07:41:23,542 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114482453]
[2025-01-09 07:41:23,542 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:23,542 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 07:41:23,544 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:23,544 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 07:41:23,545 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 07:41:23,545 INFO  L87              Difference]: Start difference. First operand 3773 states and 5669 transitions. Second operand  has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 07:41:23,635 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:23,635 INFO  L93              Difference]: Finished difference Result 7414 states and 11141 transitions.
[2025-01-09 07:41:23,635 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:41:23,636 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 161
[2025-01-09 07:41:23,636 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:23,647 INFO  L225             Difference]: With dead ends: 7414
[2025-01-09 07:41:23,647 INFO  L226             Difference]: Without dead ends: 3775
[2025-01-09 07:41:23,651 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 07:41:23,653 INFO  L435           NwaCegarLoop]: 5663 mSDtfsCounter, 0 mSDsluCounter, 11310 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16973 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:23,653 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16973 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:41:23,658 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3775 states.
[2025-01-09 07:41:23,694 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3775 to 3775.
[2025-01-09 07:41:23,699 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3775 states, 3774 states have (on average 1.5026497085320614) internal successors, (5671), 3774 states have internal predecessors, (5671), 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 07:41:23,708 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3775 states to 3775 states and 5671 transitions.
[2025-01-09 07:41:23,708 INFO  L78                 Accepts]: Start accepts. Automaton has 3775 states and 5671 transitions. Word has length 161
[2025-01-09 07:41:23,709 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:23,709 INFO  L471      AbstractCegarLoop]: Abstraction has 3775 states and 5671 transitions.
[2025-01-09 07:41:23,709 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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 07:41:23,709 INFO  L276                IsEmpty]: Start isEmpty. Operand 3775 states and 5671 transitions.
[2025-01-09 07:41:23,711 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 163
[2025-01-09 07:41:23,711 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:23,711 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]
[2025-01-09 07:41:23,711 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-01-09 07:41:23,711 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:23,712 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:23,712 INFO  L85        PathProgramCache]: Analyzing trace with hash -1954548255, now seen corresponding path program 1 times
[2025-01-09 07:41:23,713 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:23,713 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472287795]
[2025-01-09 07:41:23,713 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:23,713 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:23,755 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes.
[2025-01-09 07:41:23,782 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements.
[2025-01-09 07:41:23,782 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:23,783 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:24,118 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 07:41:24,118 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:24,118 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472287795]
[2025-01-09 07:41:24,118 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472287795] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:24,118 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:24,119 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:41:24,119 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085771905]
[2025-01-09 07:41:24,119 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:24,119 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:41:24,119 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:24,120 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:41:24,120 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:41:24,120 INFO  L87              Difference]: Start difference. First operand 3775 states and 5671 transitions. Second operand  has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 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 07:41:26,927 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:26,927 INFO  L93              Difference]: Finished difference Result 11043 states and 16593 transitions.
[2025-01-09 07:41:26,927 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-01-09 07:41:26,928 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 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 162
[2025-01-09 07:41:26,928 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:26,949 INFO  L225             Difference]: With dead ends: 11043
[2025-01-09 07:41:26,949 INFO  L226             Difference]: Without dead ends: 7402
[2025-01-09 07:41:26,956 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-01-09 07:41:26,957 INFO  L435           NwaCegarLoop]: 4529 mSDtfsCounter, 5495 mSDsluCounter, 13453 mSDsCounter, 0 mSdLazyCounter, 4479 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5495 SdHoareTripleChecker+Valid, 17982 SdHoareTripleChecker+Invalid, 4480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:26,957 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5495 Valid, 17982 Invalid, 4480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4479 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2025-01-09 07:41:26,965 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7402 states.
[2025-01-09 07:41:27,025 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7402 to 3942.
[2025-01-09 07:41:27,030 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3942 states, 3941 states have (on average 1.5021568129916265) internal successors, (5920), 3941 states have internal predecessors, (5920), 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 07:41:27,037 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3942 states to 3942 states and 5920 transitions.
[2025-01-09 07:41:27,037 INFO  L78                 Accepts]: Start accepts. Automaton has 3942 states and 5920 transitions. Word has length 162
[2025-01-09 07:41:27,037 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:27,037 INFO  L471      AbstractCegarLoop]: Abstraction has 3942 states and 5920 transitions.
[2025-01-09 07:41:27,037 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 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 07:41:27,038 INFO  L276                IsEmpty]: Start isEmpty. Operand 3942 states and 5920 transitions.
[2025-01-09 07:41:27,038 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 164
[2025-01-09 07:41:27,039 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:27,039 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]
[2025-01-09 07:41:27,039 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-01-09 07:41:27,039 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:27,039 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:27,039 INFO  L85        PathProgramCache]: Analyzing trace with hash -142106474, now seen corresponding path program 1 times
[2025-01-09 07:41:27,039 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:27,040 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655948344]
[2025-01-09 07:41:27,040 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:27,040 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:27,073 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes.
[2025-01-09 07:41:27,099 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements.
[2025-01-09 07:41:27,099 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:27,099 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:27,963 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 07:41:27,965 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:27,966 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655948344]
[2025-01-09 07:41:27,966 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655948344] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:27,966 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:27,966 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2025-01-09 07:41:27,966 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551247899]
[2025-01-09 07:41:27,966 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:27,966 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2025-01-09 07:41:27,967 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:27,971 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2025-01-09 07:41:27,971 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2025-01-09 07:41:27,971 INFO  L87              Difference]: Start difference. First operand 3942 states and 5920 transitions. Second operand  has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 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 07:41:28,317 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:28,323 INFO  L93              Difference]: Finished difference Result 7884 states and 11847 transitions.
[2025-01-09 07:41:28,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-01-09 07:41:28,331 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 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 163
[2025-01-09 07:41:28,331 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:28,348 INFO  L225             Difference]: With dead ends: 7884
[2025-01-09 07:41:28,351 INFO  L226             Difference]: Without dead ends: 4243
[2025-01-09 07:41:28,356 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2025-01-09 07:41:28,360 INFO  L435           NwaCegarLoop]: 5659 mSDtfsCounter, 755 mSDsluCounter, 22405 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 28064 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:28,360 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 28064 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2025-01-09 07:41:28,368 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4243 states.
[2025-01-09 07:41:28,451 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4243 to 3943.
[2025-01-09 07:41:28,463 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3943 states, 3942 states have (on average 1.502029426686961) internal successors, (5921), 3942 states have internal predecessors, (5921), 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 07:41:28,484 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 5921 transitions.
[2025-01-09 07:41:28,484 INFO  L78                 Accepts]: Start accepts. Automaton has 3943 states and 5921 transitions. Word has length 163
[2025-01-09 07:41:28,485 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:28,485 INFO  L471      AbstractCegarLoop]: Abstraction has 3943 states and 5921 transitions.
[2025-01-09 07:41:28,485 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 23.285714285714285) internal successors, (163), 7 states have internal predecessors, (163), 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 07:41:28,485 INFO  L276                IsEmpty]: Start isEmpty. Operand 3943 states and 5921 transitions.
[2025-01-09 07:41:28,562 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1926
[2025-01-09 07:41:28,562 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:28,564 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:41:28,564 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-01-09 07:41:28,565 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:28,566 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:28,566 INFO  L85        PathProgramCache]: Analyzing trace with hash 1956529476, now seen corresponding path program 1 times
[2025-01-09 07:41:28,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:28,566 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159041237]
[2025-01-09 07:41:28,567 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:28,567 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:28,748 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1925 statements into 1 equivalence classes.
[2025-01-09 07:41:29,923 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1925 of 1925 statements.
[2025-01-09 07:41:29,924 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:29,924 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:33,056 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:41:33,057 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:33,058 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159041237]
[2025-01-09 07:41:33,058 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159041237] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:33,058 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:33,059 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-01-09 07:41:33,060 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082444738]
[2025-01-09 07:41:33,060 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:33,061 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-01-09 07:41:33,063 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:33,065 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-01-09 07:41:33,065 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-01-09 07:41:33,066 INFO  L87              Difference]: Start difference. First operand 3943 states and 5921 transitions. Second operand  has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 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 07:41:33,111 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:33,111 INFO  L93              Difference]: Finished difference Result 7585 states and 11394 transitions.
[2025-01-09 07:41:33,112 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-01-09 07:41:33,113 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 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 1925
[2025-01-09 07:41:33,113 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:33,126 INFO  L225             Difference]: With dead ends: 7585
[2025-01-09 07:41:33,126 INFO  L226             Difference]: Without dead ends: 3944
[2025-01-09 07:41:33,132 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-01-09 07:41:33,133 INFO  L435           NwaCegarLoop]: 5664 mSDtfsCounter, 0 mSDsluCounter, 5658 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11322 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:33,134 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11322 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:41:33,140 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3944 states.
[2025-01-09 07:41:33,174 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3944 to 3944.
[2025-01-09 07:41:33,178 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3944 states, 3943 states have (on average 1.5019021049961958) internal successors, (5922), 3943 states have internal predecessors, (5922), 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 07:41:33,182 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3944 states to 3944 states and 5922 transitions.
[2025-01-09 07:41:33,183 INFO  L78                 Accepts]: Start accepts. Automaton has 3944 states and 5922 transitions. Word has length 1925
[2025-01-09 07:41:33,184 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:33,184 INFO  L471      AbstractCegarLoop]: Abstraction has 3944 states and 5922 transitions.
[2025-01-09 07:41:33,185 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 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 07:41:33,185 INFO  L276                IsEmpty]: Start isEmpty. Operand 3944 states and 5922 transitions.
[2025-01-09 07:41:33,213 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1926
[2025-01-09 07:41:33,213 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:33,214 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:41:33,214 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-01-09 07:41:33,215 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:33,216 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:33,216 INFO  L85        PathProgramCache]: Analyzing trace with hash 224211509, now seen corresponding path program 1 times
[2025-01-09 07:41:33,216 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:33,216 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043365766]
[2025-01-09 07:41:33,217 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:33,217 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:33,430 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1925 statements into 1 equivalence classes.
[2025-01-09 07:41:34,089 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1925 of 1925 statements.
[2025-01-09 07:41:34,090 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:34,090 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:37,126 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:41:37,126 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:37,126 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043365766]
[2025-01-09 07:41:37,126 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043365766] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:37,127 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:37,127 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-01-09 07:41:37,127 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839812036]
[2025-01-09 07:41:37,127 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:37,128 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-01-09 07:41:37,129 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:37,130 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-01-09 07:41:37,130 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-01-09 07:41:37,131 INFO  L87              Difference]: Start difference. First operand 3944 states and 5922 transitions. Second operand  has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 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 07:41:37,164 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:37,165 INFO  L93              Difference]: Finished difference Result 7587 states and 11396 transitions.
[2025-01-09 07:41:37,165 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-01-09 07:41:37,165 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 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 1925
[2025-01-09 07:41:37,166 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:37,171 INFO  L225             Difference]: With dead ends: 7587
[2025-01-09 07:41:37,171 INFO  L226             Difference]: Without dead ends: 3945
[2025-01-09 07:41:37,174 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-01-09 07:41:37,175 INFO  L435           NwaCegarLoop]: 5664 mSDtfsCounter, 0 mSDsluCounter, 5658 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11322 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:37,175 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11322 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:41:37,178 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3945 states.
[2025-01-09 07:41:37,206 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3945 to 3945.
[2025-01-09 07:41:37,209 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3945 states, 3944 states have (on average 1.5017748478701824) internal successors, (5923), 3944 states have internal predecessors, (5923), 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 07:41:37,211 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5923 transitions.
[2025-01-09 07:41:37,212 INFO  L78                 Accepts]: Start accepts. Automaton has 3945 states and 5923 transitions. Word has length 1925
[2025-01-09 07:41:37,212 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:37,212 INFO  L471      AbstractCegarLoop]: Abstraction has 3945 states and 5923 transitions.
[2025-01-09 07:41:37,213 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 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 07:41:37,213 INFO  L276                IsEmpty]: Start isEmpty. Operand 3945 states and 5923 transitions.
[2025-01-09 07:41:37,232 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1926
[2025-01-09 07:41:37,233 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:37,234 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:41:37,234 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-01-09 07:41:37,234 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:37,235 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:37,235 INFO  L85        PathProgramCache]: Analyzing trace with hash -1096323610, now seen corresponding path program 1 times
[2025-01-09 07:41:37,235 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:37,236 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070497892]
[2025-01-09 07:41:37,236 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:37,236 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:37,391 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1925 statements into 1 equivalence classes.
[2025-01-09 07:41:38,458 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1925 of 1925 statements.
[2025-01-09 07:41:38,458 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:38,458 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:40,123 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:41:40,123 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:40,123 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070497892]
[2025-01-09 07:41:40,124 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070497892] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:40,124 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:40,124 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2025-01-09 07:41:40,124 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703081289]
[2025-01-09 07:41:40,124 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:40,129 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-01-09 07:41:40,130 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:40,131 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-01-09 07:41:40,134 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-01-09 07:41:40,135 INFO  L87              Difference]: Start difference. First operand 3945 states and 5923 transitions. Second operand  has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 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 07:41:40,201 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:40,201 INFO  L93              Difference]: Finished difference Result 7589 states and 11398 transitions.
[2025-01-09 07:41:40,202 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-01-09 07:41:40,202 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 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 1925
[2025-01-09 07:41:40,203 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:40,211 INFO  L225             Difference]: With dead ends: 7589
[2025-01-09 07:41:40,212 INFO  L226             Difference]: Without dead ends: 3946
[2025-01-09 07:41:40,215 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-01-09 07:41:40,215 INFO  L435           NwaCegarLoop]: 5664 mSDtfsCounter, 0 mSDsluCounter, 5658 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11322 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:40,215 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11322 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:41:40,220 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3946 states.
[2025-01-09 07:41:40,253 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3946 to 3946.
[2025-01-09 07:41:40,256 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3946 states, 3945 states have (on average 1.5016476552598226) internal successors, (5924), 3945 states have internal predecessors, (5924), 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 07:41:40,259 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3946 states to 3946 states and 5924 transitions.
[2025-01-09 07:41:40,259 INFO  L78                 Accepts]: Start accepts. Automaton has 3946 states and 5924 transitions. Word has length 1925
[2025-01-09 07:41:40,260 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:40,261 INFO  L471      AbstractCegarLoop]: Abstraction has 3946 states and 5924 transitions.
[2025-01-09 07:41:40,262 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 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 07:41:40,262 INFO  L276                IsEmpty]: Start isEmpty. Operand 3946 states and 5924 transitions.
[2025-01-09 07:41:40,282 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1926
[2025-01-09 07:41:40,282 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:40,283 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:41:40,284 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2025-01-09 07:41:40,284 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:40,285 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:40,285 INFO  L85        PathProgramCache]: Analyzing trace with hash -2096391979, now seen corresponding path program 1 times
[2025-01-09 07:41:40,285 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:40,286 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116697328]
[2025-01-09 07:41:40,286 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:40,287 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:40,434 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1925 statements into 1 equivalence classes.
[2025-01-09 07:41:40,964 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1925 of 1925 statements.
[2025-01-09 07:41:40,965 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:40,965 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:43,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:41:43,615 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:43,615 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116697328]
[2025-01-09 07:41:43,616 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116697328] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:43,616 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:43,616 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 07:41:43,616 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302790745]
[2025-01-09 07:41:43,616 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:43,618 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 07:41:43,618 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:43,620 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 07:41:43,620 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 07:41:43,620 INFO  L87              Difference]: Start difference. First operand 3946 states and 5924 transitions. Second operand  has 4 states, 4 states have (on average 481.25) internal successors, (1925), 4 states have internal predecessors, (1925), 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 07:41:43,953 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:43,953 INFO  L93              Difference]: Finished difference Result 7589 states and 11397 transitions.
[2025-01-09 07:41:43,954 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:41:43,954 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 481.25) internal successors, (1925), 4 states have internal predecessors, (1925), 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 1925
[2025-01-09 07:41:43,955 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:43,960 INFO  L225             Difference]: With dead ends: 7589
[2025-01-09 07:41:43,960 INFO  L226             Difference]: Without dead ends: 3945
[2025-01-09 07:41:43,963 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:41:43,964 INFO  L435           NwaCegarLoop]: 5470 mSDtfsCounter, 5473 mSDsluCounter, 5466 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5473 SdHoareTripleChecker+Valid, 10936 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:43,964 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5473 Valid, 10936 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2025-01-09 07:41:43,968 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3945 states.
[2025-01-09 07:41:44,000 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3945 to 3945.
[2025-01-09 07:41:44,003 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3945 states, 3944 states have (on average 1.5015212981744421) internal successors, (5922), 3944 states have internal predecessors, (5922), 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 07:41:44,007 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5922 transitions.
[2025-01-09 07:41:44,007 INFO  L78                 Accepts]: Start accepts. Automaton has 3945 states and 5922 transitions. Word has length 1925
[2025-01-09 07:41:44,008 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:44,008 INFO  L471      AbstractCegarLoop]: Abstraction has 3945 states and 5922 transitions.
[2025-01-09 07:41:44,008 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 481.25) internal successors, (1925), 4 states have internal predecessors, (1925), 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 07:41:44,008 INFO  L276                IsEmpty]: Start isEmpty. Operand 3945 states and 5922 transitions.
[2025-01-09 07:41:44,044 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1927
[2025-01-09 07:41:44,044 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:44,045 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:41:44,046 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2025-01-09 07:41:44,046 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:44,047 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:44,047 INFO  L85        PathProgramCache]: Analyzing trace with hash 1256040951, now seen corresponding path program 1 times
[2025-01-09 07:41:44,047 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:44,047 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168579296]
[2025-01-09 07:41:44,048 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:44,048 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:44,274 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1926 statements into 1 equivalence classes.
[2025-01-09 07:41:45,009 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1926 of 1926 statements.
[2025-01-09 07:41:45,010 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:45,010 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:47,297 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:41:47,298 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:47,298 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168579296]
[2025-01-09 07:41:47,298 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168579296] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:47,298 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:47,298 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:41:47,298 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783771899]
[2025-01-09 07:41:47,298 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:47,300 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:41:47,300 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:47,301 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:41:47,301 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:41:47,301 INFO  L87              Difference]: Start difference. First operand 3945 states and 5922 transitions. Second operand  has 5 states, 5 states have (on average 385.2) internal successors, (1926), 5 states have internal predecessors, (1926), 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 07:41:47,888 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:47,888 INFO  L93              Difference]: Finished difference Result 7558 states and 11364 transitions.
[2025-01-09 07:41:47,888 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:41:47,889 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 385.2) internal successors, (1926), 5 states have internal predecessors, (1926), 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 1926
[2025-01-09 07:41:47,890 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:47,895 INFO  L225             Difference]: With dead ends: 7558
[2025-01-09 07:41:47,895 INFO  L226             Difference]: Without dead ends: 3915
[2025-01-09 07:41:47,898 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:41:47,899 INFO  L435           NwaCegarLoop]: 5303 mSDtfsCounter, 10792 mSDsluCounter, 5297 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10792 SdHoareTripleChecker+Valid, 10600 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:47,899 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10792 Valid, 10600 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2025-01-09 07:41:47,903 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3915 states.
[2025-01-09 07:41:47,932 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3915 to 3915.
[2025-01-09 07:41:47,935 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3915 states, 3914 states have (on average 1.4971895758814513) internal successors, (5860), 3914 states have internal predecessors, (5860), 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 07:41:47,939 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3915 states to 3915 states and 5860 transitions.
[2025-01-09 07:41:47,939 INFO  L78                 Accepts]: Start accepts. Automaton has 3915 states and 5860 transitions. Word has length 1926
[2025-01-09 07:41:47,940 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:47,940 INFO  L471      AbstractCegarLoop]: Abstraction has 3915 states and 5860 transitions.
[2025-01-09 07:41:47,940 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 385.2) internal successors, (1926), 5 states have internal predecessors, (1926), 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 07:41:47,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 3915 states and 5860 transitions.
[2025-01-09 07:41:47,976 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1928
[2025-01-09 07:41:47,976 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:47,977 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:41:47,978 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2025-01-09 07:41:47,978 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:47,979 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:47,979 INFO  L85        PathProgramCache]: Analyzing trace with hash -520306323, now seen corresponding path program 1 times
[2025-01-09 07:41:47,979 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:47,979 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568818632]
[2025-01-09 07:41:47,980 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:47,980 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:48,186 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1927 statements into 1 equivalence classes.
[2025-01-09 07:41:49,098 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1927 of 1927 statements.
[2025-01-09 07:41:49,098 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:49,098 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:51,224 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:41:51,224 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:51,224 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568818632]
[2025-01-09 07:41:51,224 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568818632] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:51,224 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:51,225 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:41:51,225 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561648203]
[2025-01-09 07:41:51,225 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:51,226 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:41:51,226 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:51,235 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:41:51,235 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:41:51,236 INFO  L87              Difference]: Start difference. First operand 3915 states and 5860 transitions. Second operand  has 5 states, 5 states have (on average 385.4) internal successors, (1927), 5 states have internal predecessors, (1927), 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 07:41:51,555 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:51,556 INFO  L93              Difference]: Finished difference Result 7528 states and 11270 transitions.
[2025-01-09 07:41:51,556 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:41:51,557 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 385.4) internal successors, (1927), 5 states have internal predecessors, (1927), 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 1927
[2025-01-09 07:41:51,558 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:51,564 INFO  L225             Difference]: With dead ends: 7528
[2025-01-09 07:41:51,564 INFO  L226             Difference]: Without dead ends: 3915
[2025-01-09 07:41:51,567 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 07:41:51,568 INFO  L435           NwaCegarLoop]: 5408 mSDtfsCounter, 10985 mSDsluCounter, 5405 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10985 SdHoareTripleChecker+Valid, 10813 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:51,569 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10985 Valid, 10813 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-01-09 07:41:51,573 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3915 states.
[2025-01-09 07:41:51,609 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3915 to 3915.
[2025-01-09 07:41:51,613 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3915 states, 3914 states have (on average 1.496934082779765) internal successors, (5859), 3914 states have internal predecessors, (5859), 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 07:41:51,618 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3915 states to 3915 states and 5859 transitions.
[2025-01-09 07:41:51,618 INFO  L78                 Accepts]: Start accepts. Automaton has 3915 states and 5859 transitions. Word has length 1927
[2025-01-09 07:41:51,619 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:51,620 INFO  L471      AbstractCegarLoop]: Abstraction has 3915 states and 5859 transitions.
[2025-01-09 07:41:51,620 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 385.4) internal successors, (1927), 5 states have internal predecessors, (1927), 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 07:41:51,620 INFO  L276                IsEmpty]: Start isEmpty. Operand 3915 states and 5859 transitions.
[2025-01-09 07:41:51,657 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1929
[2025-01-09 07:41:51,657 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:51,658 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:41:51,659 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2025-01-09 07:41:51,659 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:51,660 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:51,661 INFO  L85        PathProgramCache]: Analyzing trace with hash -48317648, now seen corresponding path program 1 times
[2025-01-09 07:41:51,661 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:51,661 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032650146]
[2025-01-09 07:41:51,661 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:51,661 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:51,869 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1928 statements into 1 equivalence classes.
[2025-01-09 07:41:52,651 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1928 of 1928 statements.
[2025-01-09 07:41:52,651 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:52,651 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:54,190 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:41:54,191 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:54,191 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032650146]
[2025-01-09 07:41:54,191 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032650146] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:54,191 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:54,191 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 07:41:54,191 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514334646]
[2025-01-09 07:41:54,191 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:54,193 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 07:41:54,193 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:54,194 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 07:41:54,194 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-01-09 07:41:54,194 INFO  L87              Difference]: Start difference. First operand 3915 states and 5859 transitions. Second operand  has 4 states, 4 states have (on average 482.0) internal successors, (1928), 4 states have internal predecessors, (1928), 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 07:41:54,625 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:54,625 INFO  L93              Difference]: Finished difference Result 7528 states and 11268 transitions.
[2025-01-09 07:41:54,625 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:41:54,626 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 482.0) internal successors, (1928), 4 states have internal predecessors, (1928), 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 1928
[2025-01-09 07:41:54,626 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:54,631 INFO  L225             Difference]: With dead ends: 7528
[2025-01-09 07:41:54,631 INFO  L226             Difference]: Without dead ends: 3915
[2025-01-09 07:41:54,634 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 07:41:54,634 INFO  L435           NwaCegarLoop]: 5302 mSDtfsCounter, 5382 mSDsluCounter, 5297 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5382 SdHoareTripleChecker+Valid, 10599 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:54,634 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5382 Valid, 10599 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-01-09 07:41:54,637 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3915 states.
[2025-01-09 07:41:54,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3915 to 3915.
[2025-01-09 07:41:54,662 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3915 states, 3914 states have (on average 1.4964230965763925) internal successors, (5857), 3914 states have internal predecessors, (5857), 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 07:41:54,665 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3915 states to 3915 states and 5857 transitions.
[2025-01-09 07:41:54,665 INFO  L78                 Accepts]: Start accepts. Automaton has 3915 states and 5857 transitions. Word has length 1928
[2025-01-09 07:41:54,666 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:54,666 INFO  L471      AbstractCegarLoop]: Abstraction has 3915 states and 5857 transitions.
[2025-01-09 07:41:54,666 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 482.0) internal successors, (1928), 4 states have internal predecessors, (1928), 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 07:41:54,666 INFO  L276                IsEmpty]: Start isEmpty. Operand 3915 states and 5857 transitions.
[2025-01-09 07:41:54,683 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1930
[2025-01-09 07:41:54,683 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:54,684 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:41:54,684 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2025-01-09 07:41:54,684 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:54,685 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:54,685 INFO  L85        PathProgramCache]: Analyzing trace with hash -266710459, now seen corresponding path program 1 times
[2025-01-09 07:41:54,685 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:54,686 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745353082]
[2025-01-09 07:41:54,686 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:54,686 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:54,819 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1929 statements into 1 equivalence classes.
[2025-01-09 07:41:55,313 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1929 of 1929 statements.
[2025-01-09 07:41:55,314 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:55,314 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:56,818 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:41:56,819 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:56,819 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745353082]
[2025-01-09 07:41:56,819 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745353082] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:56,819 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:56,819 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:41:56,819 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771452814]
[2025-01-09 07:41:56,819 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:56,820 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:41:56,821 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:56,822 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:41:56,822 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:41:56,822 INFO  L87              Difference]: Start difference. First operand 3915 states and 5857 transitions. Second operand  has 5 states, 5 states have (on average 385.8) internal successors, (1929), 5 states have internal predecessors, (1929), 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 07:41:56,906 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:56,906 INFO  L93              Difference]: Finished difference Result 7529 states and 11266 transitions.
[2025-01-09 07:41:56,906 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-01-09 07:41:56,907 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 385.8) internal successors, (1929), 5 states have internal predecessors, (1929), 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 1929
[2025-01-09 07:41:56,907 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:56,911 INFO  L225             Difference]: With dead ends: 7529
[2025-01-09 07:41:56,911 INFO  L226             Difference]: Without dead ends: 3916
[2025-01-09 07:41:56,915 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2025-01-09 07:41:56,915 INFO  L435           NwaCegarLoop]: 5581 mSDtfsCounter, 5396 mSDsluCounter, 11157 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5396 SdHoareTripleChecker+Valid, 16738 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:56,915 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5396 Valid, 16738 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:41:56,918 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3916 states.
[2025-01-09 07:41:57,010 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3916.
[2025-01-09 07:41:57,017 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3916 states, 3915 states have (on average 1.4962962962962962) internal successors, (5858), 3915 states have internal predecessors, (5858), 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 07:41:57,023 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5858 transitions.
[2025-01-09 07:41:57,027 INFO  L78                 Accepts]: Start accepts. Automaton has 3916 states and 5858 transitions. Word has length 1929
[2025-01-09 07:41:57,028 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:57,028 INFO  L471      AbstractCegarLoop]: Abstraction has 3916 states and 5858 transitions.
[2025-01-09 07:41:57,028 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 385.8) internal successors, (1929), 5 states have internal predecessors, (1929), 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 07:41:57,028 INFO  L276                IsEmpty]: Start isEmpty. Operand 3916 states and 5858 transitions.
[2025-01-09 07:41:57,059 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1930
[2025-01-09 07:41:57,062 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:57,063 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:41:57,063 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2025-01-09 07:41:57,064 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:57,064 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:57,065 INFO  L85        PathProgramCache]: Analyzing trace with hash 490030597, now seen corresponding path program 1 times
[2025-01-09 07:41:57,065 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:57,065 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434076381]
[2025-01-09 07:41:57,065 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:57,065 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:57,326 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1929 statements into 1 equivalence classes.
[2025-01-09 07:41:57,887 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1929 of 1929 statements.
[2025-01-09 07:41:57,887 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:41:57,887 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:41:59,310 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:41:59,310 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:41:59,310 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434076381]
[2025-01-09 07:41:59,310 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434076381] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:41:59,310 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:41:59,311 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:41:59,311 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010708276]
[2025-01-09 07:41:59,311 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:41:59,312 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:41:59,312 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:41:59,313 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:41:59,313 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:41:59,313 INFO  L87              Difference]: Start difference. First operand 3916 states and 5858 transitions. Second operand  has 5 states, 5 states have (on average 385.8) internal successors, (1929), 5 states have internal predecessors, (1929), 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 07:41:59,578 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:41:59,579 INFO  L93              Difference]: Finished difference Result 7530 states and 11266 transitions.
[2025-01-09 07:41:59,579 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:41:59,579 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 385.8) internal successors, (1929), 5 states have internal predecessors, (1929), 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 1929
[2025-01-09 07:41:59,580 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:41:59,582 INFO  L225             Difference]: With dead ends: 7530
[2025-01-09 07:41:59,583 INFO  L226             Difference]: Without dead ends: 3916
[2025-01-09 07:41:59,585 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 07:41:59,586 INFO  L435           NwaCegarLoop]: 5407 mSDtfsCounter, 5558 mSDsluCounter, 5405 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5558 SdHoareTripleChecker+Valid, 10812 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-01-09 07:41:59,587 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5558 Valid, 10812 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-01-09 07:41:59,590 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3916 states.
[2025-01-09 07:41:59,629 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3916.
[2025-01-09 07:41:59,632 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3916 states, 3915 states have (on average 1.4960408684546616) internal successors, (5857), 3915 states have internal predecessors, (5857), 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 07:41:59,636 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5857 transitions.
[2025-01-09 07:41:59,637 INFO  L78                 Accepts]: Start accepts. Automaton has 3916 states and 5857 transitions. Word has length 1929
[2025-01-09 07:41:59,637 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:41:59,637 INFO  L471      AbstractCegarLoop]: Abstraction has 3916 states and 5857 transitions.
[2025-01-09 07:41:59,637 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 385.8) internal successors, (1929), 5 states have internal predecessors, (1929), 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 07:41:59,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 3916 states and 5857 transitions.
[2025-01-09 07:41:59,654 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1931
[2025-01-09 07:41:59,655 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:41:59,656 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:41:59,656 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2025-01-09 07:41:59,656 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:41:59,657 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:41:59,657 INFO  L85        PathProgramCache]: Analyzing trace with hash -2055410258, now seen corresponding path program 1 times
[2025-01-09 07:41:59,657 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:41:59,657 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665852220]
[2025-01-09 07:41:59,657 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:41:59,657 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:41:59,795 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1930 statements into 1 equivalence classes.
[2025-01-09 07:42:00,256 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1930 of 1930 statements.
[2025-01-09 07:42:00,256 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:42:00,256 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:42:01,727 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:42:01,727 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:42:01,727 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665852220]
[2025-01-09 07:42:01,727 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665852220] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:42:01,727 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:42:01,728 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 07:42:01,728 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078650969]
[2025-01-09 07:42:01,728 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:42:01,729 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 07:42:01,729 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:42:01,730 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 07:42:01,730 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-01-09 07:42:01,730 INFO  L87              Difference]: Start difference. First operand 3916 states and 5857 transitions. Second operand  has 4 states, 4 states have (on average 482.5) internal successors, (1930), 4 states have internal predecessors, (1930), 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 07:42:02,149 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:42:02,150 INFO  L93              Difference]: Finished difference Result 7530 states and 11264 transitions.
[2025-01-09 07:42:02,150 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:42:02,150 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 482.5) internal successors, (1930), 4 states have internal predecessors, (1930), 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 1930
[2025-01-09 07:42:02,151 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:42:02,153 INFO  L225             Difference]: With dead ends: 7530
[2025-01-09 07:42:02,153 INFO  L226             Difference]: Without dead ends: 3916
[2025-01-09 07:42:02,156 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 07:42:02,156 INFO  L435           NwaCegarLoop]: 5301 mSDtfsCounter, 5349 mSDsluCounter, 5295 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5349 SdHoareTripleChecker+Valid, 10596 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-01-09 07:42:02,156 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5349 Valid, 10596 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-01-09 07:42:02,159 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3916 states.
[2025-01-09 07:42:02,179 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3916.
[2025-01-09 07:42:02,182 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3916 states, 3915 states have (on average 1.4955300127713922) internal successors, (5855), 3915 states have internal predecessors, (5855), 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 07:42:02,184 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5855 transitions.
[2025-01-09 07:42:02,184 INFO  L78                 Accepts]: Start accepts. Automaton has 3916 states and 5855 transitions. Word has length 1930
[2025-01-09 07:42:02,185 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:42:02,185 INFO  L471      AbstractCegarLoop]: Abstraction has 3916 states and 5855 transitions.
[2025-01-09 07:42:02,185 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 482.5) internal successors, (1930), 4 states have internal predecessors, (1930), 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 07:42:02,185 INFO  L276                IsEmpty]: Start isEmpty. Operand 3916 states and 5855 transitions.
[2025-01-09 07:42:02,202 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1932
[2025-01-09 07:42:02,202 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:42:02,203 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:42:02,204 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2025-01-09 07:42:02,204 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:42:02,205 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:42:02,205 INFO  L85        PathProgramCache]: Analyzing trace with hash -1016319587, now seen corresponding path program 1 times
[2025-01-09 07:42:02,205 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:42:02,205 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470319651]
[2025-01-09 07:42:02,205 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:42:02,205 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:42:02,333 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1931 statements into 1 equivalence classes.
[2025-01-09 07:42:02,779 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1931 of 1931 statements.
[2025-01-09 07:42:02,779 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:42:02,779 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:42:04,219 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:42:04,219 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:42:04,219 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470319651]
[2025-01-09 07:42:04,219 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470319651] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:42:04,219 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:42:04,220 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:42:04,220 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045884276]
[2025-01-09 07:42:04,220 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:42:04,221 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:42:04,221 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:42:04,222 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:42:04,222 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:42:04,222 INFO  L87              Difference]: Start difference. First operand 3916 states and 5855 transitions. Second operand  has 5 states, 5 states have (on average 386.2) internal successors, (1931), 5 states have internal predecessors, (1931), 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 07:42:04,303 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:42:04,303 INFO  L93              Difference]: Finished difference Result 7531 states and 11262 transitions.
[2025-01-09 07:42:04,303 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-01-09 07:42:04,304 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 386.2) internal successors, (1931), 5 states have internal predecessors, (1931), 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 1931
[2025-01-09 07:42:04,304 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:42:04,307 INFO  L225             Difference]: With dead ends: 7531
[2025-01-09 07:42:04,307 INFO  L226             Difference]: Without dead ends: 3917
[2025-01-09 07:42:04,310 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2025-01-09 07:42:04,310 INFO  L435           NwaCegarLoop]: 5579 mSDtfsCounter, 5357 mSDsluCounter, 11153 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5357 SdHoareTripleChecker+Valid, 16732 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:42:04,310 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5357 Valid, 16732 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:42:04,313 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3917 states.
[2025-01-09 07:42:04,330 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3917 to 3917.
[2025-01-09 07:42:04,333 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3917 states, 3916 states have (on average 1.4954034729315628) internal successors, (5856), 3916 states have internal predecessors, (5856), 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 07:42:04,336 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3917 states to 3917 states and 5856 transitions.
[2025-01-09 07:42:04,336 INFO  L78                 Accepts]: Start accepts. Automaton has 3917 states and 5856 transitions. Word has length 1931
[2025-01-09 07:42:04,336 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:42:04,336 INFO  L471      AbstractCegarLoop]: Abstraction has 3917 states and 5856 transitions.
[2025-01-09 07:42:04,337 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 386.2) internal successors, (1931), 5 states have internal predecessors, (1931), 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 07:42:04,337 INFO  L276                IsEmpty]: Start isEmpty. Operand 3917 states and 5856 transitions.
[2025-01-09 07:42:04,354 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1932
[2025-01-09 07:42:04,354 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:42:04,355 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:42:04,355 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2025-01-09 07:42:04,355 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:42:04,356 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:42:04,356 INFO  L85        PathProgramCache]: Analyzing trace with hash -1397746339, now seen corresponding path program 1 times
[2025-01-09 07:42:04,356 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:42:04,356 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402484959]
[2025-01-09 07:42:04,357 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:42:04,357 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:42:04,483 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1931 statements into 1 equivalence classes.
[2025-01-09 07:42:04,971 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1931 of 1931 statements.
[2025-01-09 07:42:04,971 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:42:04,971 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:42:06,375 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:42:06,375 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:42:06,375 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402484959]
[2025-01-09 07:42:06,376 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402484959] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:42:06,376 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:42:06,376 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:42:06,376 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493713477]
[2025-01-09 07:42:06,376 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:42:06,377 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:42:06,377 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:42:06,379 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:42:06,379 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:42:06,379 INFO  L87              Difference]: Start difference. First operand 3917 states and 5856 transitions. Second operand  has 5 states, 5 states have (on average 386.2) internal successors, (1931), 5 states have internal predecessors, (1931), 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 07:42:06,662 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:42:06,662 INFO  L93              Difference]: Finished difference Result 7531 states and 11261 transitions.
[2025-01-09 07:42:06,663 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:42:06,663 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 386.2) internal successors, (1931), 5 states have internal predecessors, (1931), 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 1931
[2025-01-09 07:42:06,664 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:42:06,667 INFO  L225             Difference]: With dead ends: 7531
[2025-01-09 07:42:06,667 INFO  L226             Difference]: Without dead ends: 3916
[2025-01-09 07:42:06,670 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 07:42:06,672 INFO  L435           NwaCegarLoop]: 5404 mSDtfsCounter, 10877 mSDsluCounter, 5401 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10877 SdHoareTripleChecker+Valid, 10805 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-01-09 07:42:06,672 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10877 Valid, 10805 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-01-09 07:42:06,675 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3916 states.
[2025-01-09 07:42:06,698 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3916.
[2025-01-09 07:42:06,701 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3916 states, 3915 states have (on average 1.4952745849297573) internal successors, (5854), 3915 states have internal predecessors, (5854), 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 07:42:06,703 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5854 transitions.
[2025-01-09 07:42:06,704 INFO  L78                 Accepts]: Start accepts. Automaton has 3916 states and 5854 transitions. Word has length 1931
[2025-01-09 07:42:06,704 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:42:06,704 INFO  L471      AbstractCegarLoop]: Abstraction has 3916 states and 5854 transitions.
[2025-01-09 07:42:06,704 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 386.2) internal successors, (1931), 5 states have internal predecessors, (1931), 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 07:42:06,705 INFO  L276                IsEmpty]: Start isEmpty. Operand 3916 states and 5854 transitions.
[2025-01-09 07:42:06,721 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1933
[2025-01-09 07:42:06,721 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:42:06,722 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:42:06,722 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2025-01-09 07:42:06,722 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:42:06,723 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:42:06,723 INFO  L85        PathProgramCache]: Analyzing trace with hash -1205905531, now seen corresponding path program 1 times
[2025-01-09 07:42:06,723 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:42:06,724 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511090788]
[2025-01-09 07:42:06,724 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:42:06,724 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:42:06,848 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1932 statements into 1 equivalence classes.
[2025-01-09 07:42:07,079 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1932 of 1932 statements.
[2025-01-09 07:42:07,079 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:42:07,079 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:42:08,440 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:42:08,440 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:42:08,440 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511090788]
[2025-01-09 07:42:08,440 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511090788] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:42:08,440 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:42:08,440 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:42:08,440 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639865554]
[2025-01-09 07:42:08,440 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:42:08,442 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:42:08,442 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:42:08,443 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:42:08,443 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:42:08,443 INFO  L87              Difference]: Start difference. First operand 3916 states and 5854 transitions. Second operand  has 5 states, 5 states have (on average 386.4) internal successors, (1932), 5 states have internal predecessors, (1932), 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 07:42:08,861 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:42:08,861 INFO  L93              Difference]: Finished difference Result 7530 states and 11258 transitions.
[2025-01-09 07:42:08,861 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:42:08,861 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 386.4) internal successors, (1932), 5 states have internal predecessors, (1932), 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 1932
[2025-01-09 07:42:08,862 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:42:08,864 INFO  L225             Difference]: With dead ends: 7530
[2025-01-09 07:42:08,864 INFO  L226             Difference]: Without dead ends: 3916
[2025-01-09 07:42:08,870 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:42:08,871 INFO  L435           NwaCegarLoop]: 5300 mSDtfsCounter, 5539 mSDsluCounter, 5295 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5539 SdHoareTripleChecker+Valid, 10595 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-01-09 07:42:08,871 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5539 Valid, 10595 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-01-09 07:42:08,874 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3916 states.
[2025-01-09 07:42:08,939 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3916.
[2025-01-09 07:42:08,941 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3916 states, 3915 states have (on average 1.494763729246488) internal successors, (5852), 3915 states have internal predecessors, (5852), 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 07:42:08,944 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5852 transitions.
[2025-01-09 07:42:08,944 INFO  L78                 Accepts]: Start accepts. Automaton has 3916 states and 5852 transitions. Word has length 1932
[2025-01-09 07:42:08,945 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:42:08,945 INFO  L471      AbstractCegarLoop]: Abstraction has 3916 states and 5852 transitions.
[2025-01-09 07:42:08,945 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 386.4) internal successors, (1932), 5 states have internal predecessors, (1932), 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 07:42:08,945 INFO  L276                IsEmpty]: Start isEmpty. Operand 3916 states and 5852 transitions.
[2025-01-09 07:42:08,961 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1934
[2025-01-09 07:42:08,962 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:42:08,963 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:42:08,963 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2025-01-09 07:42:08,963 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:42:08,964 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:42:08,964 INFO  L85        PathProgramCache]: Analyzing trace with hash 1137610933, now seen corresponding path program 1 times
[2025-01-09 07:42:08,964 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:42:08,964 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824200641]
[2025-01-09 07:42:08,964 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:42:08,964 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:42:09,096 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1933 statements into 1 equivalence classes.
[2025-01-09 07:42:09,544 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1933 of 1933 statements.
[2025-01-09 07:42:09,544 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:42:09,544 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:42:10,961 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:42:10,961 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:42:10,961 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824200641]
[2025-01-09 07:42:10,961 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824200641] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:42:10,962 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:42:10,962 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:42:10,962 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801932836]
[2025-01-09 07:42:10,962 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:42:10,963 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:42:10,963 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:42:10,964 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:42:10,964 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:42:10,964 INFO  L87              Difference]: Start difference. First operand 3916 states and 5852 transitions. Second operand  has 5 states, 5 states have (on average 386.6) internal successors, (1933), 5 states have internal predecessors, (1933), 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 07:42:11,241 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:42:11,242 INFO  L93              Difference]: Finished difference Result 7530 states and 11254 transitions.
[2025-01-09 07:42:11,242 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:42:11,242 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 386.6) internal successors, (1933), 5 states have internal predecessors, (1933), 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 1933
[2025-01-09 07:42:11,243 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:42:11,245 INFO  L225             Difference]: With dead ends: 7530
[2025-01-09 07:42:11,245 INFO  L226             Difference]: Without dead ends: 3916
[2025-01-09 07:42:11,248 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 07:42:11,248 INFO  L435           NwaCegarLoop]: 5402 mSDtfsCounter, 10843 mSDsluCounter, 5399 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10843 SdHoareTripleChecker+Valid, 10801 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-01-09 07:42:11,249 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10843 Valid, 10801 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-01-09 07:42:11,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3916 states.
[2025-01-09 07:42:11,269 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3916.
[2025-01-09 07:42:11,271 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3916 states, 3915 states have (on average 1.494508301404853) internal successors, (5851), 3915 states have internal predecessors, (5851), 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 07:42:11,274 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5851 transitions.
[2025-01-09 07:42:11,274 INFO  L78                 Accepts]: Start accepts. Automaton has 3916 states and 5851 transitions. Word has length 1933
[2025-01-09 07:42:11,274 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:42:11,274 INFO  L471      AbstractCegarLoop]: Abstraction has 3916 states and 5851 transitions.
[2025-01-09 07:42:11,275 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 386.6) internal successors, (1933), 5 states have internal predecessors, (1933), 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 07:42:11,275 INFO  L276                IsEmpty]: Start isEmpty. Operand 3916 states and 5851 transitions.
[2025-01-09 07:42:11,291 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1935
[2025-01-09 07:42:11,291 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:42:11,292 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:42:11,293 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2025-01-09 07:42:11,293 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:42:11,294 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:42:11,294 INFO  L85        PathProgramCache]: Analyzing trace with hash 1297274935, now seen corresponding path program 1 times
[2025-01-09 07:42:11,294 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:42:11,294 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896905431]
[2025-01-09 07:42:11,294 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:42:11,294 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:42:11,430 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1934 statements into 1 equivalence classes.
[2025-01-09 07:42:11,902 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1934 of 1934 statements.
[2025-01-09 07:42:11,902 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:42:11,902 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:42:13,342 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:42:13,342 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:42:13,342 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896905431]
[2025-01-09 07:42:13,342 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896905431] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:42:13,342 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:42:13,343 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 07:42:13,343 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305167110]
[2025-01-09 07:42:13,343 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:42:13,344 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 07:42:13,344 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:42:13,345 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 07:42:13,345 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-01-09 07:42:13,345 INFO  L87              Difference]: Start difference. First operand 3916 states and 5851 transitions. Second operand  has 4 states, 4 states have (on average 483.5) internal successors, (1934), 4 states have internal predecessors, (1934), 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 07:42:13,766 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:42:13,766 INFO  L93              Difference]: Finished difference Result 7530 states and 11252 transitions.
[2025-01-09 07:42:13,766 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:42:13,767 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 483.5) internal successors, (1934), 4 states have internal predecessors, (1934), 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 1934
[2025-01-09 07:42:13,767 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:42:13,769 INFO  L225             Difference]: With dead ends: 7530
[2025-01-09 07:42:13,769 INFO  L226             Difference]: Without dead ends: 3916
[2025-01-09 07:42:13,771 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 07:42:13,772 INFO  L435           NwaCegarLoop]: 5299 mSDtfsCounter, 5317 mSDsluCounter, 5293 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5317 SdHoareTripleChecker+Valid, 10592 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-01-09 07:42:13,772 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5317 Valid, 10592 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-01-09 07:42:13,774 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3916 states.
[2025-01-09 07:42:13,789 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3916.
[2025-01-09 07:42:13,791 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3916 states, 3915 states have (on average 1.4939974457215837) internal successors, (5849), 3915 states have internal predecessors, (5849), 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 07:42:13,794 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3916 states to 3916 states and 5849 transitions.
[2025-01-09 07:42:13,794 INFO  L78                 Accepts]: Start accepts. Automaton has 3916 states and 5849 transitions. Word has length 1934
[2025-01-09 07:42:13,794 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:42:13,794 INFO  L471      AbstractCegarLoop]: Abstraction has 3916 states and 5849 transitions.
[2025-01-09 07:42:13,795 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 483.5) internal successors, (1934), 4 states have internal predecessors, (1934), 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 07:42:13,795 INFO  L276                IsEmpty]: Start isEmpty. Operand 3916 states and 5849 transitions.
[2025-01-09 07:42:13,810 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1936
[2025-01-09 07:42:13,810 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:42:13,811 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:42:13,812 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2025-01-09 07:42:13,812 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:42:13,813 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:42:13,813 INFO  L85        PathProgramCache]: Analyzing trace with hash -1229872787, now seen corresponding path program 1 times
[2025-01-09 07:42:13,813 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:42:13,813 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705667625]
[2025-01-09 07:42:13,813 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:42:13,813 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:42:13,938 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1935 statements into 1 equivalence classes.
[2025-01-09 07:42:14,402 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1935 of 1935 statements.
[2025-01-09 07:42:14,402 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:42:14,402 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:42:15,844 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:42:15,844 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:42:15,844 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705667625]
[2025-01-09 07:42:15,844 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705667625] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:42:15,844 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:42:15,844 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:42:15,845 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097417264]
[2025-01-09 07:42:15,845 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:42:15,847 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:42:15,847 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:42:15,848 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:42:15,848 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:42:15,848 INFO  L87              Difference]: Start difference. First operand 3916 states and 5849 transitions. Second operand  has 5 states, 5 states have (on average 387.0) internal successors, (1935), 5 states have internal predecessors, (1935), 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 07:42:15,929 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:42:15,929 INFO  L93              Difference]: Finished difference Result 7531 states and 11250 transitions.
[2025-01-09 07:42:15,930 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-01-09 07:42:15,930 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 387.0) internal successors, (1935), 5 states have internal predecessors, (1935), 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 1935
[2025-01-09 07:42:15,930 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:42:15,933 INFO  L225             Difference]: With dead ends: 7531
[2025-01-09 07:42:15,933 INFO  L226             Difference]: Without dead ends: 3917
[2025-01-09 07:42:15,935 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2025-01-09 07:42:15,935 INFO  L435           NwaCegarLoop]: 5572 mSDtfsCounter, 5325 mSDsluCounter, 11139 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5325 SdHoareTripleChecker+Valid, 16711 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:42:15,935 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5325 Valid, 16711 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:42:15,938 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3917 states.
[2025-01-09 07:42:15,955 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3917 to 3917.
[2025-01-09 07:42:15,958 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3917 states, 3916 states have (on average 1.4938712972420838) internal successors, (5850), 3916 states have internal predecessors, (5850), 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 07:42:15,960 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3917 states to 3917 states and 5850 transitions.
[2025-01-09 07:42:15,961 INFO  L78                 Accepts]: Start accepts. Automaton has 3917 states and 5850 transitions. Word has length 1935
[2025-01-09 07:42:15,961 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:42:15,961 INFO  L471      AbstractCegarLoop]: Abstraction has 3917 states and 5850 transitions.
[2025-01-09 07:42:15,962 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 387.0) internal successors, (1935), 5 states have internal predecessors, (1935), 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 07:42:15,962 INFO  L276                IsEmpty]: Start isEmpty. Operand 3917 states and 5850 transitions.
[2025-01-09 07:42:15,978 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1936
[2025-01-09 07:42:15,978 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:42:15,979 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:42:15,979 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2025-01-09 07:42:15,979 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:42:15,980 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:42:15,980 INFO  L85        PathProgramCache]: Analyzing trace with hash -1510288083, now seen corresponding path program 1 times
[2025-01-09 07:42:15,980 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:42:15,981 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557114804]
[2025-01-09 07:42:15,981 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:42:15,981 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:42:16,110 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1935 statements into 1 equivalence classes.
[2025-01-09 07:42:16,598 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1935 of 1935 statements.
[2025-01-09 07:42:16,599 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:42:16,599 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:42:18,056 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:42:18,056 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:42:18,056 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557114804]
[2025-01-09 07:42:18,056 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557114804] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:42:18,056 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:42:18,057 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:42:18,057 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021719505]
[2025-01-09 07:42:18,057 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:42:18,058 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:42:18,058 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:42:18,059 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:42:18,059 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:42:18,059 INFO  L87              Difference]: Start difference. First operand 3917 states and 5850 transitions. Second operand  has 5 states, 5 states have (on average 387.0) internal successors, (1935), 5 states have internal predecessors, (1935), 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 07:42:18,331 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:42:18,331 INFO  L93              Difference]: Finished difference Result 7532 states and 11250 transitions.
[2025-01-09 07:42:18,331 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:42:18,332 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 387.0) internal successors, (1935), 5 states have internal predecessors, (1935), 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 1935
[2025-01-09 07:42:18,332 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:42:18,335 INFO  L225             Difference]: With dead ends: 7532
[2025-01-09 07:42:18,335 INFO  L226             Difference]: Without dead ends: 3917
[2025-01-09 07:42:18,337 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 07:42:18,338 INFO  L435           NwaCegarLoop]: 5400 mSDtfsCounter, 10033 mSDsluCounter, 5397 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10033 SdHoareTripleChecker+Valid, 10797 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2025-01-09 07:42:18,339 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10033 Valid, 10797 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2025-01-09 07:42:18,341 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3917 states.
[2025-01-09 07:42:18,358 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3917 to 3917.
[2025-01-09 07:42:18,360 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3917 states, 3916 states have (on average 1.4936159346271707) internal successors, (5849), 3916 states have internal predecessors, (5849), 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 07:42:18,363 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3917 states to 3917 states and 5849 transitions.
[2025-01-09 07:42:18,363 INFO  L78                 Accepts]: Start accepts. Automaton has 3917 states and 5849 transitions. Word has length 1935
[2025-01-09 07:42:18,364 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:42:18,364 INFO  L471      AbstractCegarLoop]: Abstraction has 3917 states and 5849 transitions.
[2025-01-09 07:42:18,364 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 387.0) internal successors, (1935), 5 states have internal predecessors, (1935), 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 07:42:18,364 INFO  L276                IsEmpty]: Start isEmpty. Operand 3917 states and 5849 transitions.
[2025-01-09 07:42:18,380 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1937
[2025-01-09 07:42:18,380 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:42:18,381 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:42:18,381 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2025-01-09 07:42:18,381 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:42:18,382 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:42:18,382 INFO  L85        PathProgramCache]: Analyzing trace with hash -961382134, now seen corresponding path program 1 times
[2025-01-09 07:42:18,382 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:42:18,383 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928035446]
[2025-01-09 07:42:18,383 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:42:18,383 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:42:18,509 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1936 statements into 1 equivalence classes.
[2025-01-09 07:42:18,973 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1936 of 1936 statements.
[2025-01-09 07:42:18,973 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:42:18,973 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:42:20,444 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:42:20,444 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:42:20,445 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928035446]
[2025-01-09 07:42:20,445 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928035446] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:42:20,445 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:42:20,445 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 07:42:20,445 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341719495]
[2025-01-09 07:42:20,445 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:42:20,446 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 07:42:20,446 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:42:20,448 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 07:42:20,448 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2025-01-09 07:42:20,448 INFO  L87              Difference]: Start difference. First operand 3917 states and 5849 transitions. Second operand  has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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 07:42:20,861 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:42:20,861 INFO  L93              Difference]: Finished difference Result 7532 states and 11248 transitions.
[2025-01-09 07:42:20,861 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:42:20,862 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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 1936
[2025-01-09 07:42:20,862 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:42:20,864 INFO  L225             Difference]: With dead ends: 7532
[2025-01-09 07:42:20,864 INFO  L226             Difference]: Without dead ends: 3917
[2025-01-09 07:42:20,866 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 07:42:20,866 INFO  L435           NwaCegarLoop]: 5298 mSDtfsCounter, 4906 mSDsluCounter, 5293 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 10591 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2025-01-09 07:42:20,867 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4906 Valid, 10591 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2025-01-09 07:42:20,869 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3917 states.
[2025-01-09 07:42:20,884 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3917 to 3917.
[2025-01-09 07:42:20,886 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3917 states, 3916 states have (on average 1.4931052093973443) internal successors, (5847), 3916 states have internal predecessors, (5847), 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 07:42:20,888 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3917 states to 3917 states and 5847 transitions.
[2025-01-09 07:42:20,888 INFO  L78                 Accepts]: Start accepts. Automaton has 3917 states and 5847 transitions. Word has length 1936
[2025-01-09 07:42:20,889 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:42:20,889 INFO  L471      AbstractCegarLoop]: Abstraction has 3917 states and 5847 transitions.
[2025-01-09 07:42:20,889 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 484.0) internal successors, (1936), 4 states have internal predecessors, (1936), 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 07:42:20,889 INFO  L276                IsEmpty]: Start isEmpty. Operand 3917 states and 5847 transitions.
[2025-01-09 07:42:20,904 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1938
[2025-01-09 07:42:20,905 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:42:20,906 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2025-01-09 07:42:20,906 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2025-01-09 07:42:20,906 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:42:20,907 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:42:20,907 INFO  L85        PathProgramCache]: Analyzing trace with hash 608690501, now seen corresponding path program 1 times
[2025-01-09 07:42:20,907 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:42:20,907 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689766770]
[2025-01-09 07:42:20,907 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:42:20,908 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:42:21,028 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1937 statements into 1 equivalence classes.
[2025-01-09 07:42:21,504 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1937 of 1937 statements.
[2025-01-09 07:42:21,505 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:42:21,505 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:42:23,062 INFO  L134       CoverageAnalysis]: Checked inductivity of 91 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:42:23,063 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:42:23,063 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689766770]
[2025-01-09 07:42:23,063 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689766770] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:42:23,063 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:42:23,063 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:42:23,063 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104288141]
[2025-01-09 07:42:23,063 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:42:23,064 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:42:23,064 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:42:23,065 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:42:23,065 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:42:23,066 INFO  L87              Difference]: Start difference. First operand 3917 states and 5847 transitions. Second operand  has 5 states, 5 states have (on average 387.4) internal successors, (1937), 5 states have internal predecessors, (1937), 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 07:42:23,155 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:42:23,155 INFO  L93              Difference]: Finished difference Result 7533 states and 11246 transitions.
[2025-01-09 07:42:23,155 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-01-09 07:42:23,156 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 387.4) internal successors, (1937), 5 states have internal predecessors, (1937), 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 1937
[2025-01-09 07:42:23,156 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:42:23,159 INFO  L225             Difference]: With dead ends: 7533
[2025-01-09 07:42:23,159 INFO  L226             Difference]: Without dead ends: 3918
[2025-01-09 07:42:23,161 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2025-01-09 07:42:23,166 INFO  L435           NwaCegarLoop]: 5569 mSDtfsCounter, 4920 mSDsluCounter, 11133 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4920 SdHoareTripleChecker+Valid, 16702 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:42:23,166 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4920 Valid, 16702 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:42:23,170 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3918 states.
[2025-01-09 07:42:23,194 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3918 to 3918.
[2025-01-09 07:42:23,197 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3918 states, 3917 states have (on average 1.4929793209088589) internal successors, (5848), 3917 states have internal predecessors, (5848), 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 07:42:23,200 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 5848 transitions.
[2025-01-09 07:42:23,200 INFO  L78                 Accepts]: Start accepts. Automaton has 3918 states and 5848 transitions. Word has length 1937
[2025-01-09 07:42:23,201 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:42:23,201 INFO  L471      AbstractCegarLoop]: Abstraction has 3918 states and 5848 transitions.
[2025-01-09 07:42:23,201 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 387.4) internal successors, (1937), 5 states have internal predecessors, (1937), 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 07:42:23,201 INFO  L276                IsEmpty]: Start isEmpty. Operand 3918 states and 5848 transitions.
[2025-01-09 07:42:23,217 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1938
[2025-01-09 07:42:23,217 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:42:23,218 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:42:23,219 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2025-01-09 07:42:23,219 INFO  L396      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:42:23,220 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:42:23,221 INFO  L85        PathProgramCache]: Analyzing trace with hash 719623429, now seen corresponding path program 1 times
[2025-01-09 07:42:23,221 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:42:23,221 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672968309]
[2025-01-09 07:42:23,221 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:42:23,222 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:42:23,374 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1937 statements into 1 equivalence classes.
[2025-01-09 07:42:23,851 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1937 of 1937 statements.
[2025-01-09 07:42:23,851 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:42:23,851 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat