./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB --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 5b3157e4b8464481afb456e60ff52ac14c54dfdd3857541f78f205fb0f185301
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-11-28 05:08:53,967 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-28 05:08:54,060 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-28 05:08:54,069 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-28 05:08:54,070 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-28 05:08:54,109 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-28 05:08:54,110 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-28 05:08:54,111 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-28 05:08:54,111 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-28 05:08:54,111 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-28 05:08:54,112 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-28 05:08:54,113 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-28 05:08:54,113 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-28 05:08:54,113 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-28 05:08:54,114 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-28 05:08:54,115 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-28 05:08:54,115 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-28 05:08:54,115 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-28 05:08:54,115 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-28 05:08:54,115 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-28 05:08:54,115 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-28 05:08:54,115 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-28 05:08:54,115 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-28 05:08:54,116 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-28 05:08:54,116 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-28 05:08:54,116 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-28 05:08:54,116 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 05:08:54,116 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 05:08:54,116 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 05:08:54,116 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 05:08:54,117 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-28 05:08:54,117 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 05:08:54,117 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 05:08:54,117 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 05:08:54,117 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 05:08:54,118 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-28 05:08:54,118 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-28 05:08:54,118 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-28 05:08:54,118 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-28 05:08:54,118 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-28 05:08:54,118 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-28 05:08:54,118 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-28 05:08:54,118 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-28 05:08:54,119 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-28 05:08:54,119 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-28 05:08:54,119 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB
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 -> 5b3157e4b8464481afb456e60ff52ac14c54dfdd3857541f78f205fb0f185301
[2024-11-28 05:08:54,456 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-28 05:08:54,465 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-28 05:08:54,467 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-28 05:08:54,468 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-28 05:08:54,469 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-28 05:08:54,470 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop1-func-interl.c
[2024-11-28 05:08:57,466 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/data/1fedf70b9/e56a5a06198249d399da62b2333a4f48/FLAG05dd5af10
[2024-11-28 05:08:58,172 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-28 05:08:58,173 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop1-func-interl.c
[2024-11-28 05:08:58,227 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/data/1fedf70b9/e56a5a06198249d399da62b2333a4f48/FLAG05dd5af10
[2024-11-28 05:08:58,249 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/data/1fedf70b9/e56a5a06198249d399da62b2333a4f48
[2024-11-28 05:08:58,253 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-28 05:08:58,256 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-28 05:08:58,258 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-28 05:08:58,258 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-28 05:08:58,264 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-28 05:08:58,265 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:08:58" (1/1) ...
[2024-11-28 05:08:58,266 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b89eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:08:58, skipping insertion in model container
[2024-11-28 05:08:58,266 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:08:58" (1/1) ...
[2024-11-28 05:08:58,422 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-28 05:08:58,741 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop1-func-interl.c[1176,1189]
[2024-11-28 05:08:59,859 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 05:08:59,875 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-28 05:08:59,886 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.6.prop1-func-interl.c[1176,1189]
[2024-11-28 05:09:00,548 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 05:09:00,565 INFO  L204         MainTranslator]: Completed translation
[2024-11-28 05:09:00,565 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00 WrapperNode
[2024-11-28 05:09:00,566 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-28 05:09:00,567 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-28 05:09:00,568 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-28 05:09:00,568 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-28 05:09:00,577 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:00,719 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:03,025 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20137
[2024-11-28 05:09:03,025 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-28 05:09:03,026 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-28 05:09:03,026 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-28 05:09:03,027 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-28 05:09:03,037 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:03,037 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:03,544 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:03,989 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-28 05:09:03,989 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:03,989 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:04,610 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:04,654 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:04,730 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:04,810 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:04,884 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:05,276 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-28 05:09:05,278 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-28 05:09:05,278 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-28 05:09:05,278 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-28 05:09:05,279 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (1/1) ...
[2024-11-28 05:09:05,289 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 05:09:05,303 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 05:09:05,321 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-28 05:09:05,325 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e066f203-1d94-4fa1-a432-8d57192f9de7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-28 05:09:05,355 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-28 05:09:05,355 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-28 05:09:05,355 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-28 05:09:05,355 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-28 05:09:06,883 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-28 05:09:06,885 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-28 05:09:45,785 INFO  L?                        ?]: Removed 11885 outVars from TransFormulas that were not future-live.
[2024-11-28 05:09:45,785 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-28 05:09:45,910 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-28 05:09:45,911 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-28 05:09:45,911 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:09:45 BoogieIcfgContainer
[2024-11-28 05:09:45,911 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-28 05:09:45,913 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-28 05:09:45,913 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-28 05:09:45,918 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-28 05:09:45,918 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:08:58" (1/3) ...
[2024-11-28 05:09:45,919 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22931c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:09:45, skipping insertion in model container
[2024-11-28 05:09:45,919 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:00" (2/3) ...
[2024-11-28 05:09:45,920 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22931c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:09:45, skipping insertion in model container
[2024-11-28 05:09:45,920 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:09:45" (3/3) ...
[2024-11-28 05:09:45,921 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cambridge.6.prop1-func-interl.c
[2024-11-28 05:09:45,938 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-28 05:09:45,941 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cambridge.6.prop1-func-interl.c that has 1 procedures, 6486 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-28 05:09:46,128 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-28 05:09:46,144 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;@27cd7afd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-28 05:09:46,144 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-28 05:09:46,169 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6486 states, 6484 states have (on average 1.5013880320789637) internal successors, (9735), 6485 states have internal predecessors, (9735), 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)
[2024-11-28 05:09:46,193 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 232
[2024-11-28 05:09:46,193 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:09:46,195 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]
[2024-11-28 05:09:46,196 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:09:46,202 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:09:46,202 INFO  L85        PathProgramCache]: Analyzing trace with hash 1359355439, now seen corresponding path program 1 times
[2024-11-28 05:09:46,209 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:09:46,210 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113046780]
[2024-11-28 05:09:46,210 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:09:46,211 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:09:46,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:09:48,110 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 05:09:48,111 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:09:48,111 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113046780]
[2024-11-28 05:09:48,114 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113046780] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:09:48,114 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:09:48,114 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 05:09:48,116 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492749524]
[2024-11-28 05:09:48,116 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:09:48,120 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 05:09:48,122 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:09:48,144 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 05:09:48,144 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 05:09:48,160 INFO  L87              Difference]: Start difference. First operand  has 6486 states, 6484 states have (on average 1.5013880320789637) internal successors, (9735), 6485 states have internal predecessors, (9735), 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 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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)
[2024-11-28 05:09:48,644 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:09:48,645 INFO  L93              Difference]: Finished difference Result 12713 states and 19085 transitions.
[2024-11-28 05:09:48,646 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 05:09:48,647 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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 231
[2024-11-28 05:09:48,648 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:09:48,699 INFO  L225             Difference]: With dead ends: 12713
[2024-11-28 05:09:48,702 INFO  L226             Difference]: Without dead ends: 6485
[2024-11-28 05:09:48,720 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
[2024-11-28 05:09:48,724 INFO  L435           NwaCegarLoop]: 9729 mSDtfsCounter, 0 mSDsluCounter, 19452 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29181 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
[2024-11-28 05:09:48,725 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29181 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-28 05:09:48,755 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6485 states.
[2024-11-28 05:09:48,954 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6485 to 6485.
[2024-11-28 05:09:48,968 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6485 states, 6484 states have (on average 1.5010795805058605) internal successors, (9733), 6484 states have internal predecessors, (9733), 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)
[2024-11-28 05:09:49,002 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6485 states to 6485 states and 9733 transitions.
[2024-11-28 05:09:49,004 INFO  L78                 Accepts]: Start accepts. Automaton has 6485 states and 9733 transitions. Word has length 231
[2024-11-28 05:09:49,006 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:09:49,006 INFO  L471      AbstractCegarLoop]: Abstraction has 6485 states and 9733 transitions.
[2024-11-28 05:09:49,007 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 57.75) internal successors, (231), 4 states have internal predecessors, (231), 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)
[2024-11-28 05:09:49,008 INFO  L276                IsEmpty]: Start isEmpty. Operand 6485 states and 9733 transitions.
[2024-11-28 05:09:49,011 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 233
[2024-11-28 05:09:49,011 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:09:49,011 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]
[2024-11-28 05:09:49,012 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-28 05:09:49,012 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:09:49,013 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:09:49,013 INFO  L85        PathProgramCache]: Analyzing trace with hash -807957729, now seen corresponding path program 1 times
[2024-11-28 05:09:49,013 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:09:49,013 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161687115]
[2024-11-28 05:09:49,013 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:09:49,014 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:09:49,219 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:09:49,741 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 05:09:49,743 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:09:49,743 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161687115]
[2024-11-28 05:09:49,743 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161687115] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:09:49,743 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:09:49,744 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 05:09:49,744 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262103831]
[2024-11-28 05:09:49,744 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:09:49,747 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 05:09:49,747 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:09:49,748 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 05:09:49,748 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 05:09:49,748 INFO  L87              Difference]: Start difference. First operand 6485 states and 9733 transitions. Second operand  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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)
[2024-11-28 05:09:50,040 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:09:50,041 INFO  L93              Difference]: Finished difference Result 12714 states and 19083 transitions.
[2024-11-28 05:09:50,041 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 05:09:50,042 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 232
[2024-11-28 05:09:50,043 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:09:50,067 INFO  L225             Difference]: With dead ends: 12714
[2024-11-28 05:09:50,067 INFO  L226             Difference]: Without dead ends: 6487
[2024-11-28 05:09:50,073 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
[2024-11-28 05:09:50,076 INFO  L435           NwaCegarLoop]: 9729 mSDtfsCounter, 0 mSDsluCounter, 19448 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29177 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 05:09:50,078 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29177 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 05:09:50,089 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6487 states.
[2024-11-28 05:09:50,202 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6487 to 6487.
[2024-11-28 05:09:50,217 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6487 states, 6486 states have (on average 1.5009250693802034) internal successors, (9735), 6486 states have internal predecessors, (9735), 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)
[2024-11-28 05:09:50,250 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6487 states to 6487 states and 9735 transitions.
[2024-11-28 05:09:50,250 INFO  L78                 Accepts]: Start accepts. Automaton has 6487 states and 9735 transitions. Word has length 232
[2024-11-28 05:09:50,252 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:09:50,252 INFO  L471      AbstractCegarLoop]: Abstraction has 6487 states and 9735 transitions.
[2024-11-28 05:09:50,253 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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)
[2024-11-28 05:09:50,253 INFO  L276                IsEmpty]: Start isEmpty. Operand 6487 states and 9735 transitions.
[2024-11-28 05:09:50,256 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 234
[2024-11-28 05:09:50,257 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:09:50,258 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]
[2024-11-28 05:09:50,258 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-28 05:09:50,258 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:09:50,259 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:09:50,260 INFO  L85        PathProgramCache]: Analyzing trace with hash -374850296, now seen corresponding path program 1 times
[2024-11-28 05:09:50,260 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:09:50,260 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220713534]
[2024-11-28 05:09:50,260 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:09:50,260 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:09:50,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:09:50,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 05:09:50,914 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:09:50,915 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220713534]
[2024-11-28 05:09:50,915 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220713534] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:09:50,915 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:09:50,915 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 05:09:50,915 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237772732]
[2024-11-28 05:09:50,915 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:09:50,916 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 05:09:50,916 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:09:50,917 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 05:09:50,918 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 05:09:50,918 INFO  L87              Difference]: Start difference. First operand 6487 states and 9735 transitions. Second operand  has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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)
[2024-11-28 05:09:51,196 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:09:51,196 INFO  L93              Difference]: Finished difference Result 12718 states and 19087 transitions.
[2024-11-28 05:09:51,197 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 05:09:51,197 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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 233
[2024-11-28 05:09:51,201 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:09:51,227 INFO  L225             Difference]: With dead ends: 12718
[2024-11-28 05:09:51,228 INFO  L226             Difference]: Without dead ends: 6489
[2024-11-28 05:09:51,234 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
[2024-11-28 05:09:51,238 INFO  L435           NwaCegarLoop]: 9729 mSDtfsCounter, 0 mSDsluCounter, 19442 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 29171 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 05:09:51,240 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 29171 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 05:09:51,252 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6489 states.
[2024-11-28 05:09:51,362 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6489 to 6489.
[2024-11-28 05:09:51,372 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6489 states, 6488 states have (on average 1.50077065351418) internal successors, (9737), 6488 states have internal predecessors, (9737), 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)
[2024-11-28 05:09:51,398 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 9737 transitions.
[2024-11-28 05:09:51,399 INFO  L78                 Accepts]: Start accepts. Automaton has 6489 states and 9737 transitions. Word has length 233
[2024-11-28 05:09:51,400 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:09:51,400 INFO  L471      AbstractCegarLoop]: Abstraction has 6489 states and 9737 transitions.
[2024-11-28 05:09:51,400 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 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)
[2024-11-28 05:09:51,400 INFO  L276                IsEmpty]: Start isEmpty. Operand 6489 states and 9737 transitions.
[2024-11-28 05:09:51,403 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 235
[2024-11-28 05:09:51,403 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:09:51,404 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]
[2024-11-28 05:09:51,404 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-28 05:09:51,404 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:09:51,405 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:09:51,405 INFO  L85        PathProgramCache]: Analyzing trace with hash -2121536314, now seen corresponding path program 1 times
[2024-11-28 05:09:51,405 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:09:51,405 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404368811]
[2024-11-28 05:09:51,405 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:09:51,406 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:09:51,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:09:52,139 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 05:09:52,140 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:09:52,141 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404368811]
[2024-11-28 05:09:52,141 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404368811] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:09:52,141 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:09:52,141 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-28 05:09:52,141 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970836501]
[2024-11-28 05:09:52,141 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:09:52,142 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-28 05:09:52,142 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:09:52,143 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-28 05:09:52,143 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-28 05:09:52,143 INFO  L87              Difference]: Start difference. First operand 6489 states and 9737 transitions. Second operand  has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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)
[2024-11-28 05:09:52,622 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:09:52,622 INFO  L93              Difference]: Finished difference Result 18485 states and 27742 transitions.
[2024-11-28 05:09:52,622 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-28 05:09:52,623 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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 234
[2024-11-28 05:09:52,624 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:09:52,674 INFO  L225             Difference]: With dead ends: 18485
[2024-11-28 05:09:52,674 INFO  L226             Difference]: Without dead ends: 12254
[2024-11-28 05:09:52,684 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
[2024-11-28 05:09:52,685 INFO  L435           NwaCegarLoop]: 9725 mSDtfsCounter, 8817 mSDsluCounter, 28784 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8817 SdHoareTripleChecker+Valid, 38509 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 05:09:52,685 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [8817 Valid, 38509 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 05:09:52,706 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12254 states.
[2024-11-28 05:09:53,012 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12254 to 6677.
[2024-11-28 05:09:53,023 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6677 states, 6676 states have (on average 1.5007489514679448) internal successors, (10019), 6676 states have internal predecessors, (10019), 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)
[2024-11-28 05:09:53,048 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 10019 transitions.
[2024-11-28 05:09:53,048 INFO  L78                 Accepts]: Start accepts. Automaton has 6677 states and 10019 transitions. Word has length 234
[2024-11-28 05:09:53,049 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:09:53,049 INFO  L471      AbstractCegarLoop]: Abstraction has 6677 states and 10019 transitions.
[2024-11-28 05:09:53,049 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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)
[2024-11-28 05:09:53,049 INFO  L276                IsEmpty]: Start isEmpty. Operand 6677 states and 10019 transitions.
[2024-11-28 05:09:53,204 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3312
[2024-11-28 05:09:53,205 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:09:53,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-11-28 05:09:53,206 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-28 05:09:53,206 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:09:53,208 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:09:53,210 INFO  L85        PathProgramCache]: Analyzing trace with hash -1190673787, now seen corresponding path program 1 times
[2024-11-28 05:09:53,210 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:09:53,210 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011880095]
[2024-11-28 05:09:53,212 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:09:53,212 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:10:00,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:10:13,049 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 05:10:13,049 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:10:13,050 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011880095]
[2024-11-28 05:10:13,050 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011880095] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:10:13,050 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:10:13,050 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 05:10:13,050 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542321597]
[2024-11-28 05:10:13,050 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:10:13,055 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 05:10:13,055 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:10:13,060 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 05:10:13,060 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 05:10:13,061 INFO  L87              Difference]: Start difference. First operand 6677 states and 10019 transitions. Second operand  has 4 states, 4 states have (on average 827.75) internal successors, (3311), 4 states have internal predecessors, (3311), 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)
[2024-11-28 05:10:13,276 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:10:13,276 INFO  L93              Difference]: Finished difference Result 12908 states and 19370 transitions.
[2024-11-28 05:10:13,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 05:10:13,278 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 827.75) internal successors, (3311), 4 states have internal predecessors, (3311), 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 3311
[2024-11-28 05:10:13,280 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:10:13,294 INFO  L225             Difference]: With dead ends: 12908
[2024-11-28 05:10:13,294 INFO  L226             Difference]: Without dead ends: 6677
[2024-11-28 05:10:13,301 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-28 05:10:13,303 INFO  L435           NwaCegarLoop]: 9723 mSDtfsCounter, 9503 mSDsluCounter, 9721 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9503 SdHoareTripleChecker+Valid, 19444 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-28 05:10:13,304 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [9503 Valid, 19444 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-28 05:10:13,317 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6677 states.
[2024-11-28 05:10:13,427 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 6677.
[2024-11-28 05:10:13,437 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6677 states, 6676 states have (on average 1.5005991611743559) internal successors, (10018), 6676 states have internal predecessors, (10018), 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)
[2024-11-28 05:10:13,463 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 10018 transitions.
[2024-11-28 05:10:13,463 INFO  L78                 Accepts]: Start accepts. Automaton has 6677 states and 10018 transitions. Word has length 3311
[2024-11-28 05:10:13,465 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:10:13,465 INFO  L471      AbstractCegarLoop]: Abstraction has 6677 states and 10018 transitions.
[2024-11-28 05:10:13,467 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 827.75) internal successors, (3311), 4 states have internal predecessors, (3311), 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)
[2024-11-28 05:10:13,467 INFO  L276                IsEmpty]: Start isEmpty. Operand 6677 states and 10018 transitions.
[2024-11-28 05:10:13,546 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3313
[2024-11-28 05:10:13,546 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:10:13,548 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-11-28 05:10:13,548 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-28 05:10:13,548 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:10:13,550 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:10:13,551 INFO  L85        PathProgramCache]: Analyzing trace with hash 229470452, now seen corresponding path program 1 times
[2024-11-28 05:10:13,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:10:13,552 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570371744]
[2024-11-28 05:10:13,552 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:10:13,553 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:10:19,173 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:10:26,767 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 05:10:26,767 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:10:26,767 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570371744]
[2024-11-28 05:10:26,767 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570371744] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:10:26,767 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:10:26,768 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 05:10:26,768 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881812262]
[2024-11-28 05:10:26,768 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:10:26,771 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 05:10:26,771 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:10:26,774 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 05:10:26,774 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 05:10:26,776 INFO  L87              Difference]: Start difference. First operand 6677 states and 10018 transitions. Second operand  has 4 states, 4 states have (on average 828.0) internal successors, (3312), 4 states have internal predecessors, (3312), 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)
[2024-11-28 05:10:26,963 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:10:26,964 INFO  L93              Difference]: Finished difference Result 12908 states and 19368 transitions.
[2024-11-28 05:10:26,964 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 05:10:26,966 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 828.0) internal successors, (3312), 4 states have internal predecessors, (3312), 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 3312
[2024-11-28 05:10:26,967 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:10:26,980 INFO  L225             Difference]: With dead ends: 12908
[2024-11-28 05:10:26,980 INFO  L226             Difference]: Without dead ends: 6677
[2024-11-28 05:10:26,987 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-28 05:10:26,988 INFO  L435           NwaCegarLoop]: 9722 mSDtfsCounter, 9473 mSDsluCounter, 9720 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9473 SdHoareTripleChecker+Valid, 19442 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-28 05:10:26,990 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [9473 Valid, 19442 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-28 05:10:27,004 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6677 states.
[2024-11-28 05:10:27,102 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6677 to 6677.
[2024-11-28 05:10:27,112 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6677 states, 6676 states have (on average 1.500449370880767) internal successors, (10017), 6676 states have internal predecessors, (10017), 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)
[2024-11-28 05:10:27,122 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6677 states to 6677 states and 10017 transitions.
[2024-11-28 05:10:27,122 INFO  L78                 Accepts]: Start accepts. Automaton has 6677 states and 10017 transitions. Word has length 3312
[2024-11-28 05:10:27,123 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:10:27,123 INFO  L471      AbstractCegarLoop]: Abstraction has 6677 states and 10017 transitions.
[2024-11-28 05:10:27,124 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 828.0) internal successors, (3312), 4 states have internal predecessors, (3312), 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)
[2024-11-28 05:10:27,125 INFO  L276                IsEmpty]: Start isEmpty. Operand 6677 states and 10017 transitions.
[2024-11-28 05:10:27,203 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3314
[2024-11-28 05:10:27,203 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:10:27,205 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-11-28 05:10:27,205 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-28 05:10:27,205 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:10:27,206 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:10:27,208 INFO  L85        PathProgramCache]: Analyzing trace with hash -2085809754, now seen corresponding path program 1 times
[2024-11-28 05:10:27,208 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:10:27,208 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895801808]
[2024-11-28 05:10:27,209 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:10:27,210 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:10:33,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:10:42,412 INFO  L134       CoverageAnalysis]: Checked inductivity of 100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 05:10:42,412 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:10:42,412 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895801808]
[2024-11-28 05:10:42,412 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895801808] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:10:42,412 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:10:42,413 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-28 05:10:42,413 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048331427]
[2024-11-28 05:10:42,413 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:10:42,416 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-28 05:10:42,417 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:10:42,421 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-28 05:10:42,421 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-28 05:10:42,422 INFO  L87              Difference]: Start difference. First operand 6677 states and 10017 transitions. Second operand  has 5 states, 5 states have (on average 662.6) internal successors, (3313), 5 states have internal predecessors, (3313), 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)
[2024-11-28 05:10:42,644 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:10:42,645 INFO  L93              Difference]: Finished difference Result 12912 states and 19372 transitions.
[2024-11-28 05:10:42,645 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-28 05:10:42,646 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 662.6) internal successors, (3313), 5 states have internal predecessors, (3313), 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 3313
[2024-11-28 05:10:42,647 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:10:42,659 INFO  L225             Difference]: With dead ends: 12912
[2024-11-28 05:10:42,659 INFO  L226             Difference]: Without dead ends: 6681
[2024-11-28 05:10:42,665 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-28 05:10:42,665 INFO  L435           NwaCegarLoop]: 9721 mSDtfsCounter, 4 mSDsluCounter, 29154 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 38875 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 05:10:42,666 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 38875 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 05:10:42,674 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6681 states.
[2024-11-28 05:10:42,750 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6681 to 6679.
[2024-11-28 05:10:42,759 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6679 states, 6678 states have (on average 1.5002994908655285) internal successors, (10019), 6678 states have internal predecessors, (10019), 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)
[2024-11-28 05:10:42,767 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6679 states to 6679 states and 10019 transitions.
[2024-11-28 05:10:42,768 INFO  L78                 Accepts]: Start accepts. Automaton has 6679 states and 10019 transitions. Word has length 3313
[2024-11-28 05:10:42,769 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:10:42,769 INFO  L471      AbstractCegarLoop]: Abstraction has 6679 states and 10019 transitions.
[2024-11-28 05:10:42,770 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 662.6) internal successors, (3313), 5 states have internal predecessors, (3313), 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)
[2024-11-28 05:10:42,770 INFO  L276                IsEmpty]: Start isEmpty. Operand 6679 states and 10019 transitions.
[2024-11-28 05:10:42,848 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3315
[2024-11-28 05:10:42,848 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:10:42,850 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-11-28 05:10:42,850 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-28 05:10:42,850 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:10:42,851 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:10:42,853 INFO  L85        PathProgramCache]: Analyzing trace with hash 987585729, now seen corresponding path program 1 times
[2024-11-28 05:10:42,853 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:10:42,853 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620374089]
[2024-11-28 05:10:42,854 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:10:42,854 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:10:49,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat