./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.5.prop1-back-serstep.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.frogs.5.prop1-back-serstep.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 84f7d85051ef68646f8f488d43fc46c9a04f055c3fce09bef3a2a192f4e514e5
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-551b009-m
[2025-01-09 07:19:23,470 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-01-09 07:19:23,508 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2025-01-09 07:19:23,512 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-01-09 07:19:23,512 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-01-09 07:19:23,526 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-01-09 07:19:23,526 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-01-09 07:19:23,526 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-01-09 07:19:23,527 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-01-09 07:19:23,527 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-01-09 07:19:23,527 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-01-09 07:19:23,527 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-01-09 07:19:23,527 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-01-09 07:19:23,527 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-01-09 07:19:23,527 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-01-09 07:19:23,527 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-01-09 07:19:23,527 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-01-09 07:19:23,528 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-01-09 07:19:23,528 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-01-09 07:19:23,528 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-01-09 07:19:23,528 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-01-09 07:19:23,528 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-01-09 07:19:23,528 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-01-09 07:19:23,528 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-01-09 07:19:23,528 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-01-09 07:19:23,528 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-01-09 07:19:23,528 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-01-09 07:19:23,528 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-01-09 07:19:23,529 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-01-09 07:19:23,529 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 07:19:23,529 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2025-01-09 07:19:23,529 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-01-09 07:19:23,529 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-01-09 07:19:23,529 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-01-09 07:19:23,529 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 07:19:23,529 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-01-09 07:19:23,529 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-01-09 07:19:23,529 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-01-09 07:19:23,529 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-01-09 07:19:23,530 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-01-09 07:19:23,530 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-01-09 07:19:23,530 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-01-09 07:19:23,530 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-01-09 07:19:23,530 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-01-09 07:19:23,530 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-01-09 07:19:23,530 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 -> 84f7d85051ef68646f8f488d43fc46c9a04f055c3fce09bef3a2a192f4e514e5
[2025-01-09 07:19:23,700 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-01-09 07:19:23,706 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-01-09 07:19:23,708 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-01-09 07:19:23,708 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-01-09 07:19:23,709 INFO  L274        PluginConnector]: CDTParser initialized
[2025-01-09 07:19:23,709 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.5.prop1-back-serstep.c
[2025-01-09 07:19:24,793 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8027ea683/8fcd27fafc924a3daf2924a048349cbd/FLAG0f94d0cfd
[2025-01-09 07:19:25,429 INFO  L384              CDTParser]: Found 1 translation units.
[2025-01-09 07:19:25,430 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.frogs.5.prop1-back-serstep.c
[2025-01-09 07:19:25,460 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8027ea683/8fcd27fafc924a3daf2924a048349cbd/FLAG0f94d0cfd
[2025-01-09 07:19:25,894 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8027ea683/8fcd27fafc924a3daf2924a048349cbd
[2025-01-09 07:19:25,896 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-01-09 07:19:25,897 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-01-09 07:19:25,898 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-01-09 07:19:25,898 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-01-09 07:19:25,904 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-01-09 07:19:25,905 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:19:25" (1/1) ...
[2025-01-09 07:19:25,909 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ec176d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:25, skipping insertion in model container
[2025-01-09 07:19:25,909 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 07:19:25" (1/1) ...
[2025-01-09 07:19:25,987 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-01-09 07:19:26,183 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.frogs.5.prop1-back-serstep.c[1173,1186]
[2025-01-09 07:19:26,793 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-01-09 07:19:26,801 INFO  L200         MainTranslator]: Completed pre-run
[2025-01-09 07:19:26,810 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.frogs.5.prop1-back-serstep.c[1173,1186]
[2025-01-09 07:19:27,287 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-01-09 07:19:27,298 INFO  L204         MainTranslator]: Completed translation
[2025-01-09 07:19:27,300 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27 WrapperNode
[2025-01-09 07:19:27,300 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-01-09 07:19:27,301 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-01-09 07:19:27,302 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-01-09 07:19:27,302 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-01-09 07:19:27,307 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:27,401 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:28,803 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 17059
[2025-01-09 07:19:28,804 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-01-09 07:19:28,809 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-01-09 07:19:28,809 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-01-09 07:19:28,809 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-01-09 07:19:28,821 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:28,821 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:29,090 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:29,381 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 07:19:29,381 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:29,381 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:29,695 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:29,731 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:29,811 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:29,894 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:29,945 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:30,156 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-01-09 07:19:30,157 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2025-01-09 07:19:30,157 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2025-01-09 07:19:30,157 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2025-01-09 07:19:30,158 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (1/1) ...
[2025-01-09 07:19:30,161 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-01-09 07:19:30,170 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-01-09 07:19:30,185 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 07:19:30,188 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 07:19:30,208 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-01-09 07:19:30,208 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-01-09 07:19:30,208 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-01-09 07:19:30,208 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-01-09 07:19:31,239 INFO  L234             CfgBuilder]: Building ICFG
[2025-01-09 07:19:31,241 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-01-09 07:19:44,416 INFO  L?                        ?]: Removed 11610 outVars from TransFormulas that were not future-live.
[2025-01-09 07:19:44,417 INFO  L283             CfgBuilder]: Performing block encoding
[2025-01-09 07:19:44,494 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-01-09 07:19:44,496 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2025-01-09 07:19:44,497 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:19:44 BoogieIcfgContainer
[2025-01-09 07:19:44,497 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2025-01-09 07:19:44,498 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-01-09 07:19:44,498 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-01-09 07:19:44,503 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-01-09 07:19:44,503 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 07:19:25" (1/3) ...
[2025-01-09 07:19:44,505 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abb71a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:19:44, skipping insertion in model container
[2025-01-09 07:19:44,505 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 07:19:27" (2/3) ...
[2025-01-09 07:19:44,505 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abb71a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 07:19:44, skipping insertion in model container
[2025-01-09 07:19:44,505 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 07:19:44" (3/3) ...
[2025-01-09 07:19:44,507 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.frogs.5.prop1-back-serstep.c
[2025-01-09 07:19:44,520 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-01-09 07:19:44,522 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.frogs.5.prop1-back-serstep.c that has 1 procedures, 4306 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-01-09 07:19:44,619 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-01-09 07:19:44,629 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;@770ba1ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-01-09 07:19:44,630 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-01-09 07:19:44,642 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4306 states, 4304 states have (on average 1.499767657992565) internal successors, (6455), 4305 states have internal predecessors, (6455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 07:19:44,656 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 246
[2025-01-09 07:19:44,656 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:19:44,657 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 07:19:44,657 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:19:44,661 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:19:44,662 INFO  L85        PathProgramCache]: Analyzing trace with hash -1148520213, now seen corresponding path program 1 times
[2025-01-09 07:19:44,667 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:19:44,667 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978285633]
[2025-01-09 07:19:44,668 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:19:44,670 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:19:44,860 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 245 statements into 1 equivalence classes.
[2025-01-09 07:19:45,053 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 245 of 245 statements.
[2025-01-09 07:19:45,054 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:19:45,054 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:19:46,019 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 07:19:46,021 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:19:46,021 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978285633]
[2025-01-09 07:19:46,022 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978285633] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:19:46,022 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:19:46,022 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 07:19:46,023 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113259730]
[2025-01-09 07:19:46,023 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:19:46,027 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 07:19:46,027 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:19:46,044 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 07:19:46,045 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 07:19:46,053 INFO  L87              Difference]: Start difference. First operand  has 4306 states, 4304 states have (on average 1.499767657992565) internal successors, (6455), 4305 states have internal predecessors, (6455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 07:19:46,297 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:19:46,297 INFO  L93              Difference]: Finished difference Result 8457 states and 12681 transitions.
[2025-01-09 07:19:46,298 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:19:46,300 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 245
[2025-01-09 07:19:46,301 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:19:46,332 INFO  L225             Difference]: With dead ends: 8457
[2025-01-09 07:19:46,332 INFO  L226             Difference]: Without dead ends: 4305
[2025-01-09 07:19:46,347 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 07:19:46,350 INFO  L435           NwaCegarLoop]: 6449 mSDtfsCounter, 0 mSDsluCounter, 12892 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19341 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:19:46,351 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19341 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:19:46,369 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4305 states.
[2025-01-09 07:19:46,485 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4305 to 4305.
[2025-01-09 07:19:46,492 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4305 states, 4304 states have (on average 1.499302973977695) internal successors, (6453), 4304 states have internal predecessors, (6453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 07:19:46,508 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 6453 transitions.
[2025-01-09 07:19:46,509 INFO  L78                 Accepts]: Start accepts. Automaton has 4305 states and 6453 transitions. Word has length 245
[2025-01-09 07:19:46,511 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:19:46,511 INFO  L471      AbstractCegarLoop]: Abstraction has 4305 states and 6453 transitions.
[2025-01-09 07:19:46,512 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 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 07:19:46,512 INFO  L276                IsEmpty]: Start isEmpty. Operand 4305 states and 6453 transitions.
[2025-01-09 07:19:46,515 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 247
[2025-01-09 07:19:46,517 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:19:46,518 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 07:19:46,518 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2025-01-09 07:19:46,518 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:19:46,519 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:19:46,519 INFO  L85        PathProgramCache]: Analyzing trace with hash -1242691522, now seen corresponding path program 1 times
[2025-01-09 07:19:46,519 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:19:46,519 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333823102]
[2025-01-09 07:19:46,519 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:19:46,519 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:19:46,622 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 246 statements into 1 equivalence classes.
[2025-01-09 07:19:46,685 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 246 of 246 statements.
[2025-01-09 07:19:46,685 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:19:46,685 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:19:47,043 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 07:19:47,044 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:19:47,044 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333823102]
[2025-01-09 07:19:47,044 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333823102] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:19:47,044 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:19:47,044 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2025-01-09 07:19:47,044 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350238594]
[2025-01-09 07:19:47,045 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:19:47,045 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2025-01-09 07:19:47,047 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:19:47,047 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2025-01-09 07:19:47,047 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2025-01-09 07:19:47,047 INFO  L87              Difference]: Start difference. First operand 4305 states and 6453 transitions. Second operand  has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 07:19:47,186 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:19:47,186 INFO  L93              Difference]: Finished difference Result 8458 states and 12679 transitions.
[2025-01-09 07:19:47,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:19:47,187 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 246
[2025-01-09 07:19:47,189 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:19:47,201 INFO  L225             Difference]: With dead ends: 8458
[2025-01-09 07:19:47,201 INFO  L226             Difference]: Without dead ends: 4307
[2025-01-09 07:19:47,207 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 07:19:47,207 INFO  L435           NwaCegarLoop]: 6449 mSDtfsCounter, 0 mSDsluCounter, 12888 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19337 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:19:47,208 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19337 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:19:47,213 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4307 states.
[2025-01-09 07:19:47,266 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4307 to 4307.
[2025-01-09 07:19:47,273 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4307 states, 4306 states have (on average 1.4990710636321412) internal successors, (6455), 4306 states have internal predecessors, (6455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2025-01-09 07:19:47,288 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4307 states to 4307 states and 6455 transitions.
[2025-01-09 07:19:47,289 INFO  L78                 Accepts]: Start accepts. Automaton has 4307 states and 6455 transitions. Word has length 246
[2025-01-09 07:19:47,290 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:19:47,290 INFO  L471      AbstractCegarLoop]: Abstraction has 4307 states and 6455 transitions.
[2025-01-09 07:19:47,290 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 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 07:19:47,291 INFO  L276                IsEmpty]: Start isEmpty. Operand 4307 states and 6455 transitions.
[2025-01-09 07:19:47,293 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 248
[2025-01-09 07:19:47,293 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:19:47,293 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 07:19:47,293 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2025-01-09 07:19:47,294 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:19:47,298 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:19:47,298 INFO  L85        PathProgramCache]: Analyzing trace with hash -966695900, now seen corresponding path program 1 times
[2025-01-09 07:19:47,298 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:19:47,298 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610128412]
[2025-01-09 07:19:47,298 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:19:47,298 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:19:47,410 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 247 statements into 1 equivalence classes.
[2025-01-09 07:19:47,443 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 247 of 247 statements.
[2025-01-09 07:19:47,443 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:19:47,443 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:19:47,785 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 07:19:47,786 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:19:47,786 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610128412]
[2025-01-09 07:19:47,786 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610128412] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:19:47,786 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:19:47,786 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:19:47,786 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906099263]
[2025-01-09 07:19:47,786 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:19:47,786 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:19:47,787 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:19:47,787 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:19:47,787 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:19:47,787 INFO  L87              Difference]: Start difference. First operand 4307 states and 6455 transitions. Second operand  has 5 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 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 07:19:48,124 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:19:48,125 INFO  L93              Difference]: Finished difference Result 12599 states and 18886 transitions.
[2025-01-09 07:19:48,126 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-01-09 07:19:48,126 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 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 247
[2025-01-09 07:19:48,126 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:19:48,154 INFO  L225             Difference]: With dead ends: 12599
[2025-01-09 07:19:48,154 INFO  L226             Difference]: Without dead ends: 8446
[2025-01-09 07:19:48,159 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 07:19:48,159 INFO  L435           NwaCegarLoop]: 6447 mSDtfsCounter, 6196 mSDsluCounter, 19106 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6196 SdHoareTripleChecker+Valid, 25553 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:19:48,160 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6196 Valid, 25553 Invalid, 22 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:19:48,170 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8446 states.
[2025-01-09 07:19:48,244 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8446 to 4629.
[2025-01-09 07:19:48,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4629 states, 4628 states have (on average 1.4989196197061365) internal successors, (6937), 4628 states have internal predecessors, (6937), 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 07:19:48,263 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 6937 transitions.
[2025-01-09 07:19:48,263 INFO  L78                 Accepts]: Start accepts. Automaton has 4629 states and 6937 transitions. Word has length 247
[2025-01-09 07:19:48,264 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:19:48,264 INFO  L471      AbstractCegarLoop]: Abstraction has 4629 states and 6937 transitions.
[2025-01-09 07:19:48,264 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 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 07:19:48,264 INFO  L276                IsEmpty]: Start isEmpty. Operand 4629 states and 6937 transitions.
[2025-01-09 07:19:48,338 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2323
[2025-01-09 07:19:48,338 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:19:48,340 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:19:48,341 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2025-01-09 07:19:48,341 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:19:48,343 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:19:48,343 INFO  L85        PathProgramCache]: Analyzing trace with hash 1834790612, now seen corresponding path program 1 times
[2025-01-09 07:19:48,344 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:19:48,344 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097722613]
[2025-01-09 07:19:48,344 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:19:48,344 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:19:48,970 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2322 statements into 1 equivalence classes.
[2025-01-09 07:19:53,717 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2322 of 2322 statements.
[2025-01-09 07:19:53,717 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:19:53,717 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:20:00,109 INFO  L134       CoverageAnalysis]: Checked inductivity of 166 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked.
[2025-01-09 07:20:00,109 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:20:00,109 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097722613]
[2025-01-09 07:20:00,109 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097722613] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:20:00,109 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:20:00,109 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2025-01-09 07:20:00,110 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294877151]
[2025-01-09 07:20:00,110 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:20:00,112 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2025-01-09 07:20:00,113 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:20:00,115 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2025-01-09 07:20:00,115 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:20:00,116 INFO  L87              Difference]: Start difference. First operand 4629 states and 6937 transitions. Second operand  has 5 states, 5 states have (on average 432.6) internal successors, (2163), 5 states have internal predecessors, (2163), 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 07:20:00,240 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:20:00,241 INFO  L93              Difference]: Finished difference Result 8786 states and 13167 transitions.
[2025-01-09 07:20:00,241 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2025-01-09 07:20:00,245 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 432.6) internal successors, (2163), 5 states have internal predecessors, (2163), 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 2322
[2025-01-09 07:20:00,248 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:20:00,266 INFO  L225             Difference]: With dead ends: 8786
[2025-01-09 07:20:00,266 INFO  L226             Difference]: Without dead ends: 4633
[2025-01-09 07:20:00,270 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2025-01-09 07:20:00,273 INFO  L435           NwaCegarLoop]: 6449 mSDtfsCounter, 0 mSDsluCounter, 12888 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19337 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-01-09 07:20:00,274 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19337 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-01-09 07:20:00,279 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4633 states.
[2025-01-09 07:20:00,334 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4633 to 4629.
[2025-01-09 07:20:00,343 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4629 states, 4628 states have (on average 1.4989196197061365) internal successors, (6937), 4628 states have internal predecessors, (6937), 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 07:20:00,356 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 6937 transitions.
[2025-01-09 07:20:00,357 INFO  L78                 Accepts]: Start accepts. Automaton has 4629 states and 6937 transitions. Word has length 2322
[2025-01-09 07:20:00,359 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:20:00,359 INFO  L471      AbstractCegarLoop]: Abstraction has 4629 states and 6937 transitions.
[2025-01-09 07:20:00,361 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 432.6) internal successors, (2163), 5 states have internal predecessors, (2163), 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 07:20:00,361 INFO  L276                IsEmpty]: Start isEmpty. Operand 4629 states and 6937 transitions.
[2025-01-09 07:20:00,403 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2324
[2025-01-09 07:20:00,403 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:20:00,404 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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, 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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]
[2025-01-09 07:20:00,405 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2025-01-09 07:20:00,405 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:20:00,406 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:20:00,407 INFO  L85        PathProgramCache]: Analyzing trace with hash 1952822485, now seen corresponding path program 1 times
[2025-01-09 07:20:00,407 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:20:00,407 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859167029]
[2025-01-09 07:20:00,407 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:20:00,407 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:20:00,996 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2323 statements into 1 equivalence classes.
[2025-01-09 07:20:06,563 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2323 of 2323 statements.
[2025-01-09 07:20:06,563 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:20:06,563 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:20:14,852 INFO  L134       CoverageAnalysis]: Checked inductivity of 166 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:20:14,852 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:20:14,853 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859167029]
[2025-01-09 07:20:14,853 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859167029] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:20:14,853 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:20:14,853 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-01-09 07:20:14,853 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194359702]
[2025-01-09 07:20:14,853 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:20:14,855 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-01-09 07:20:14,855 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:20:14,856 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-01-09 07:20:14,856 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2025-01-09 07:20:14,857 INFO  L87              Difference]: Start difference. First operand 4629 states and 6937 transitions. Second operand  has 6 states, 6 states have (on average 387.1666666666667) internal successors, (2323), 6 states have internal predecessors, (2323), 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 07:20:15,778 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:20:15,779 INFO  L93              Difference]: Finished difference Result 9553 states and 14317 transitions.
[2025-01-09 07:20:15,779 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-01-09 07:20:15,780 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 387.1666666666667) internal successors, (2323), 6 states have internal predecessors, (2323), 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 2323
[2025-01-09 07:20:15,782 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:20:15,795 INFO  L225             Difference]: With dead ends: 9553
[2025-01-09 07:20:15,796 INFO  L226             Difference]: Without dead ends: 5398
[2025-01-09 07:20:15,801 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2025-01-09 07:20:15,802 INFO  L435           NwaCegarLoop]: 6262 mSDtfsCounter, 6109 mSDsluCounter, 18781 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6109 SdHoareTripleChecker+Valid, 25043 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2025-01-09 07:20:15,802 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6109 Valid, 25043 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2025-01-09 07:20:15,807 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5398 states.
[2025-01-09 07:20:15,862 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5398 to 5011.
[2025-01-09 07:20:15,866 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5011 states, 5010 states have (on average 1.4988023952095808) internal successors, (7509), 5010 states have internal predecessors, (7509), 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 07:20:15,873 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5011 states to 5011 states and 7509 transitions.
[2025-01-09 07:20:15,873 INFO  L78                 Accepts]: Start accepts. Automaton has 5011 states and 7509 transitions. Word has length 2323
[2025-01-09 07:20:15,875 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:20:15,875 INFO  L471      AbstractCegarLoop]: Abstraction has 5011 states and 7509 transitions.
[2025-01-09 07:20:15,876 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 387.1666666666667) internal successors, (2323), 6 states have internal predecessors, (2323), 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 07:20:15,876 INFO  L276                IsEmpty]: Start isEmpty. Operand 5011 states and 7509 transitions.
[2025-01-09 07:20:15,900 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2325
[2025-01-09 07:20:15,901 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:20:15,902 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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, 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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]
[2025-01-09 07:20:15,902 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2025-01-09 07:20:15,902 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:20:15,903 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:20:15,903 INFO  L85        PathProgramCache]: Analyzing trace with hash 1534776905, now seen corresponding path program 1 times
[2025-01-09 07:20:15,903 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:20:15,904 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108970920]
[2025-01-09 07:20:15,904 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:20:15,904 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:20:16,497 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2324 statements into 1 equivalence classes.
[2025-01-09 07:20:21,402 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2324 of 2324 statements.
[2025-01-09 07:20:21,403 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:20:21,403 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:20:28,088 INFO  L134       CoverageAnalysis]: Checked inductivity of 166 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:20:28,089 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:20:28,089 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108970920]
[2025-01-09 07:20:28,089 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108970920] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:20:28,090 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:20:28,090 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-01-09 07:20:28,090 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792443706]
[2025-01-09 07:20:28,091 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:20:28,092 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-01-09 07:20:28,092 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:20:28,094 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-01-09 07:20:28,094 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2025-01-09 07:20:28,094 INFO  L87              Difference]: Start difference. First operand 5011 states and 7509 transitions. Second operand  has 6 states, 6 states have (on average 387.3333333333333) internal successors, (2324), 6 states have internal predecessors, (2324), 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 07:20:28,697 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:20:28,697 INFO  L93              Difference]: Finished difference Result 11994 states and 17976 transitions.
[2025-01-09 07:20:28,698 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2025-01-09 07:20:28,699 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 387.3333333333333) internal successors, (2324), 6 states have internal predecessors, (2324), 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 2324
[2025-01-09 07:20:28,700 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:20:28,713 INFO  L225             Difference]: With dead ends: 11994
[2025-01-09 07:20:28,714 INFO  L226             Difference]: Without dead ends: 5015
[2025-01-09 07:20:28,722 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2025-01-09 07:20:28,723 INFO  L435           NwaCegarLoop]: 6404 mSDtfsCounter, 12246 mSDsluCounter, 19089 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12246 SdHoareTripleChecker+Valid, 25493 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2025-01-09 07:20:28,723 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12246 Valid, 25493 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2025-01-09 07:20:28,729 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5015 states.
[2025-01-09 07:20:28,783 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5015 to 5013.
[2025-01-09 07:20:28,788 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5013 states, 5012 states have (on average 1.4986033519553073) internal successors, (7511), 5012 states have internal predecessors, (7511), 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 07:20:28,793 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5013 states to 5013 states and 7511 transitions.
[2025-01-09 07:20:28,793 INFO  L78                 Accepts]: Start accepts. Automaton has 5013 states and 7511 transitions. Word has length 2324
[2025-01-09 07:20:28,794 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:20:28,794 INFO  L471      AbstractCegarLoop]: Abstraction has 5013 states and 7511 transitions.
[2025-01-09 07:20:28,795 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 387.3333333333333) internal successors, (2324), 6 states have internal predecessors, (2324), 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 07:20:28,796 INFO  L276                IsEmpty]: Start isEmpty. Operand 5013 states and 7511 transitions.
[2025-01-09 07:20:28,821 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2326
[2025-01-09 07:20:28,821 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:20:28,822 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-01-09 07:20:28,822 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2025-01-09 07:20:28,822 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:20:28,823 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:20:28,824 INFO  L85        PathProgramCache]: Analyzing trace with hash -1145731245, now seen corresponding path program 1 times
[2025-01-09 07:20:28,824 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:20:28,824 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156659990]
[2025-01-09 07:20:28,824 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:20:28,824 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:20:29,425 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2325 statements into 1 equivalence classes.
[2025-01-09 07:20:35,023 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2325 of 2325 statements.
[2025-01-09 07:20:35,024 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-01-09 07:20:35,024 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-01-09 07:20:41,468 INFO  L134       CoverageAnalysis]: Checked inductivity of 166 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2025-01-09 07:20:41,469 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-01-09 07:20:41,469 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156659990]
[2025-01-09 07:20:41,469 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156659990] provided 1 perfect and 0 imperfect interpolant sequences
[2025-01-09 07:20:41,469 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2025-01-09 07:20:41,469 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2025-01-09 07:20:41,469 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792730366]
[2025-01-09 07:20:41,469 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-01-09 07:20:41,471 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2025-01-09 07:20:41,471 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-01-09 07:20:41,472 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2025-01-09 07:20:41,472 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2025-01-09 07:20:41,473 INFO  L87              Difference]: Start difference. First operand 5013 states and 7511 transitions. Second operand  has 6 states, 6 states have (on average 387.5) internal successors, (2325), 6 states have internal predecessors, (2325), 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 07:20:42,130 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-01-09 07:20:42,130 INFO  L93              Difference]: Finished difference Result 9556 states and 14318 transitions.
[2025-01-09 07:20:42,130 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2025-01-09 07:20:42,134 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 387.5) internal successors, (2325), 6 states have internal predecessors, (2325), 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 2325
[2025-01-09 07:20:42,135 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-01-09 07:20:42,149 INFO  L225             Difference]: With dead ends: 9556
[2025-01-09 07:20:42,150 INFO  L226             Difference]: Without dead ends: 5017
[2025-01-09 07:20:42,162 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2025-01-09 07:20:42,164 INFO  L435           NwaCegarLoop]: 6289 mSDtfsCounter, 6230 mSDsluCounter, 12548 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6230 SdHoareTripleChecker+Valid, 18837 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2025-01-09 07:20:42,164 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6230 Valid, 18837 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 516 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2025-01-09 07:20:42,179 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5017 states.
[2025-01-09 07:20:42,269 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5017 to 5015.
[2025-01-09 07:20:42,278 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5015 states, 5014 states have (on average 1.498404467491025) internal successors, (7513), 5014 states have internal predecessors, (7513), 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 07:20:42,295 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5015 states to 5015 states and 7513 transitions.
[2025-01-09 07:20:42,295 INFO  L78                 Accepts]: Start accepts. Automaton has 5015 states and 7513 transitions. Word has length 2325
[2025-01-09 07:20:42,296 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-01-09 07:20:42,296 INFO  L471      AbstractCegarLoop]: Abstraction has 5015 states and 7513 transitions.
[2025-01-09 07:20:42,297 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 387.5) internal successors, (2325), 6 states have internal predecessors, (2325), 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 07:20:42,297 INFO  L276                IsEmpty]: Start isEmpty. Operand 5015 states and 7513 transitions.
[2025-01-09 07:20:42,335 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2327
[2025-01-09 07:20:42,336 INFO  L210           NwaCegarLoop]: Found error trace
[2025-01-09 07:20:42,337 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2025-01-09 07:20:42,337 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2025-01-09 07:20:42,337 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-01-09 07:20:42,338 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-01-09 07:20:42,339 INFO  L85        PathProgramCache]: Analyzing trace with hash 1602868889, now seen corresponding path program 1 times
[2025-01-09 07:20:42,339 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-01-09 07:20:42,339 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783844243]
[2025-01-09 07:20:42,339 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-01-09 07:20:42,339 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-01-09 07:20:43,307 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2326 statements into 1 equivalence classes.