./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.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_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1 --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 89fa5bcee0b87baa8fdcd504d33e57009a693bf03fe212b3e5e783c0c5f361d6
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 15:35:20,351 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-12-02 15:35:20,415 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-02 15:35:20,421 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 15:35:20,421 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 15:35:20,447 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 15:35:20,448 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 15:35:20,448 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 15:35:20,448 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 15:35:20,449 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-12-02 15:35:20,449 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 15:35:20,449 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 15:35:20,449 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 15:35:20,449 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-12-02 15:35:20,449 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-12-02 15:35:20,450 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 15:35:20,450 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-12-02 15:35:20,450 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-12-02 15:35:20,450 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-12-02 15:35:20,450 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 15:35:20,450 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 15:35:20,450 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 15:35:20,450 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-12-02 15:35:20,450 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 15:35:20,450 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-12-02 15:35:20,451 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 15:35:20,451 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 15:35:20,451 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 15:35:20,451 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 15:35:20,451 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:35:20,451 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 15:35:20,451 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 15:35:20,451 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 15:35:20,451 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 15:35:20,451 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:35:20,452 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 15:35:20,452 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 15:35:20,452 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-12-02 15:35:20,452 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 15:35:20,452 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-12-02 15:35:20,452 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 15:35:20,452 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 15:35:20,452 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 15:35:20,452 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 15:35:20,452 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 15:35:20,453 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_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1
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 -> 89fa5bcee0b87baa8fdcd504d33e57009a693bf03fe212b3e5e783c0c5f361d6
[2024-12-02 15:35:20,723 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 15:35:20,732 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 15:35:20,735 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 15:35:20,737 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-12-02 15:35:20,737 INFO  L274        PluginConnector]: CDTParser initialized
[2024-12-02 15:35:20,738 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c
[2024-12-02 15:35:23,882 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/data/5fc8233d0/4f0aa2ffdda14edbbf390f733122647f/FLAG0a5042134
[2024-12-02 15:35:24,229 INFO  L384              CDTParser]: Found 1 translation units.
[2024-12-02 15:35:24,230 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c
[2024-12-02 15:35:24,258 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/data/5fc8233d0/4f0aa2ffdda14edbbf390f733122647f/FLAG0a5042134
[2024-12-02 15:35:24,272 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/data/5fc8233d0/4f0aa2ffdda14edbbf390f733122647f
[2024-12-02 15:35:24,274 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 15:35:24,276 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 15:35:24,277 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 15:35:24,277 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 15:35:24,280 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 15:35:24,281 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:35:24" (1/1) ...
[2024-12-02 15:35:24,281 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333858b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:24, skipping insertion in model container
[2024-12-02 15:35:24,282 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:35:24" (1/1) ...
[2024-12-02 15:35:24,375 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-12-02 15:35:24,610 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_97700635-5b92-473c-afbd-722daa6c0325/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c[1177,1190]
[2024-12-02 15:35:25,367 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 15:35:25,377 INFO  L200         MainTranslator]: Completed pre-run
[2024-12-02 15:35:25,386 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_97700635-5b92-473c-afbd-722daa6c0325/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-back-serstep.c[1177,1190]
[2024-12-02 15:35:26,018 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 15:35:26,037 INFO  L204         MainTranslator]: Completed translation
[2024-12-02 15:35:26,037 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26 WrapperNode
[2024-12-02 15:35:26,037 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 15:35:26,038 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 15:35:26,039 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 15:35:26,039 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 15:35:26,045 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:26,203 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:28,367 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26041
[2024-12-02 15:35:28,367 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 15:35:28,369 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 15:35:28,369 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 15:35:28,369 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 15:35:28,378 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:28,378 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:29,305 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:29,728 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].
[2024-12-02 15:35:29,728 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:29,728 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:30,410 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:30,450 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:30,522 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:30,616 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:30,679 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:31,228 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 15:35:31,229 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 15:35:31,229 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 15:35:31,230 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-12-02 15:35:31,231 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (1/1) ...
[2024-12-02 15:35:31,236 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:35:31,247 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 15:35:31,262 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 15:35:31,266 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97700635-5b92-473c-afbd-722daa6c0325/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 15:35:31,292 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 15:35:31,292 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 15:35:31,292 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 15:35:31,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 15:35:32,833 INFO  L234             CfgBuilder]: Building ICFG
[2024-12-02 15:35:32,835 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 15:37:09,132 INFO  L?                        ?]: Removed 14135 outVars from TransFormulas that were not future-live.
[2024-12-02 15:37:09,132 INFO  L283             CfgBuilder]: Performing block encoding
[2024-12-02 15:37:09,241 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 15:37:09,242 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 15:37:09,242 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:09 BoogieIcfgContainer
[2024-12-02 15:37:09,242 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 15:37:09,245 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 15:37:09,245 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 15:37:09,251 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-12-02 15:37:09,251 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:35:24" (1/3) ...
[2024-12-02 15:37:09,252 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a87e76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:37:09, skipping insertion in model container
[2024-12-02 15:37:09,252 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:26" (2/3) ...
[2024-12-02 15:37:09,252 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a87e76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:37:09, skipping insertion in model container
[2024-12-02 15:37:09,252 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:09" (3/3) ...
[2024-12-02 15:37:09,254 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.7.prop1-back-serstep.c
[2024-12-02 15:37:09,272 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 15:37:09,274 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.7.prop1-back-serstep.c that has 1 procedures, 9066 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 15:37:09,506 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 15:37:09,520 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;@8845cf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 15:37:09,520 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 15:37:09,549 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 9066 states, 9064 states have (on average 1.5038614298323036) internal successors, (13631), 9065 states have internal predecessors, (13631), 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)
[2024-12-02 15:37:09,597 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 732
[2024-12-02 15:37:09,597 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:37:09,598 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:37:09,599 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:37:09,605 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:37:09,605 INFO  L85        PathProgramCache]: Analyzing trace with hash -433348175, now seen corresponding path program 1 times
[2024-12-02 15:37:09,614 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:37:09,614 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154550698]
[2024-12-02 15:37:09,615 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:37:09,615 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:37:10,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:37:13,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:37:13,883 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:37:13,883 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154550698]
[2024-12-02 15:37:13,884 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154550698] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:37:13,884 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:37:13,885 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:37:13,886 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985909590]
[2024-12-02 15:37:13,887 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:37:13,893 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:37:13,893 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:37:13,918 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:37:13,919 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:37:13,940 INFO  L87              Difference]: Start difference. First operand  has 9066 states, 9064 states have (on average 1.5038614298323036) internal successors, (13631), 9065 states have internal predecessors, (13631), 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 182.75) internal successors, (731), 4 states have internal predecessors, (731), 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)
[2024-12-02 15:37:14,495 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:37:14,496 INFO  L93              Difference]: Finished difference Result 17817 states and 26793 transitions.
[2024-12-02 15:37:14,497 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:37:14,499 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 182.75) internal successors, (731), 4 states have internal predecessors, (731), 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 731
[2024-12-02 15:37:14,502 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:37:14,553 INFO  L225             Difference]: With dead ends: 17817
[2024-12-02 15:37:14,553 INFO  L226             Difference]: Without dead ends: 9065
[2024-12-02 15:37:14,568 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
[2024-12-02 15:37:14,572 INFO  L435           NwaCegarLoop]: 13625 mSDtfsCounter, 0 mSDsluCounter, 27244 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40869 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
[2024-12-02 15:37:14,573 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40869 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:37:14,606 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9065 states.
[2024-12-02 15:37:14,816 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9065 to 9065.
[2024-12-02 15:37:14,837 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9065 states, 9064 states have (on average 1.5036407766990292) internal successors, (13629), 9064 states have internal predecessors, (13629), 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)
[2024-12-02 15:37:14,892 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9065 states to 9065 states and 13629 transitions.
[2024-12-02 15:37:14,894 INFO  L78                 Accepts]: Start accepts. Automaton has 9065 states and 13629 transitions. Word has length 731
[2024-12-02 15:37:14,897 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:37:14,897 INFO  L471      AbstractCegarLoop]: Abstraction has 9065 states and 13629 transitions.
[2024-12-02 15:37:14,897 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 182.75) internal successors, (731), 4 states have internal predecessors, (731), 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)
[2024-12-02 15:37:14,898 INFO  L276                IsEmpty]: Start isEmpty. Operand 9065 states and 13629 transitions.
[2024-12-02 15:37:14,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 733
[2024-12-02 15:37:14,919 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:37:14,920 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:37:14,920 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 15:37:14,921 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:37:14,922 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:37:14,922 INFO  L85        PathProgramCache]: Analyzing trace with hash -547191665, now seen corresponding path program 1 times
[2024-12-02 15:37:14,922 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:37:14,922 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960057936]
[2024-12-02 15:37:14,923 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:37:14,923 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:37:15,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:37:17,219 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:37:17,220 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:37:17,220 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960057936]
[2024-12-02 15:37:17,220 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960057936] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:37:17,220 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:37:17,220 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:37:17,221 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170965219]
[2024-12-02 15:37:17,221 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:37:17,223 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:37:17,223 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:37:17,224 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:37:17,224 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:37:17,225 INFO  L87              Difference]: Start difference. First operand 9065 states and 13629 transitions. Second operand  has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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)
[2024-12-02 15:37:17,610 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:37:17,610 INFO  L93              Difference]: Finished difference Result 17818 states and 26791 transitions.
[2024-12-02 15:37:17,610 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:37:17,611 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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 732
[2024-12-02 15:37:17,613 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:37:17,648 INFO  L225             Difference]: With dead ends: 17818
[2024-12-02 15:37:17,648 INFO  L226             Difference]: Without dead ends: 9067
[2024-12-02 15:37:17,656 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
[2024-12-02 15:37:17,657 INFO  L435           NwaCegarLoop]: 13625 mSDtfsCounter, 0 mSDsluCounter, 27240 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40865 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
[2024-12-02 15:37:17,657 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40865 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:37:17,673 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9067 states.
[2024-12-02 15:37:17,819 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9067 to 9067.
[2024-12-02 15:37:17,833 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9067 states, 9066 states have (on average 1.5035296712993602) internal successors, (13631), 9066 states have internal predecessors, (13631), 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)
[2024-12-02 15:37:17,868 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9067 states to 9067 states and 13631 transitions.
[2024-12-02 15:37:17,869 INFO  L78                 Accepts]: Start accepts. Automaton has 9067 states and 13631 transitions. Word has length 732
[2024-12-02 15:37:17,870 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:37:17,870 INFO  L471      AbstractCegarLoop]: Abstraction has 9067 states and 13631 transitions.
[2024-12-02 15:37:17,872 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 183.0) internal successors, (732), 4 states have internal predecessors, (732), 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)
[2024-12-02 15:37:17,872 INFO  L276                IsEmpty]: Start isEmpty. Operand 9067 states and 13631 transitions.
[2024-12-02 15:37:17,880 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 734
[2024-12-02 15:37:17,880 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:37:17,881 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:37:17,881 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 15:37:17,881 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:37:17,882 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:37:17,882 INFO  L85        PathProgramCache]: Analyzing trace with hash -881033654, now seen corresponding path program 1 times
[2024-12-02 15:37:17,883 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:37:17,883 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904972021]
[2024-12-02 15:37:17,883 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:37:17,883 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:37:18,409 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:37:20,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:37:20,365 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:37:20,365 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904972021]
[2024-12-02 15:37:20,365 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904972021] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:37:20,365 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:37:20,365 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:37:20,366 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996712016]
[2024-12-02 15:37:20,366 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:37:20,367 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:37:20,367 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:37:20,368 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:37:20,368 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:37:20,369 INFO  L87              Difference]: Start difference. First operand 9067 states and 13631 transitions. Second operand  has 5 states, 5 states have (on average 146.6) internal successors, (733), 5 states have internal predecessors, (733), 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)
[2024-12-02 15:37:20,923 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:37:20,923 INFO  L93              Difference]: Finished difference Result 26559 states and 39934 transitions.
[2024-12-02 15:37:20,924 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:37:20,925 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 146.6) internal successors, (733), 5 states have internal predecessors, (733), 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 733
[2024-12-02 15:37:20,927 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:37:21,003 INFO  L225             Difference]: With dead ends: 26559
[2024-12-02 15:37:21,004 INFO  L226             Difference]: Without dead ends: 17806
[2024-12-02 15:37:21,020 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
[2024-12-02 15:37:21,025 INFO  L435           NwaCegarLoop]: 13623 mSDtfsCounter, 12886 mSDsluCounter, 40394 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12886 SdHoareTripleChecker+Valid, 54017 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:37:21,027 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12886 Valid, 54017 Invalid, 22 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:37:21,059 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17806 states.
[2024-12-02 15:37:21,242 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17806 to 10201.
[2024-12-02 15:37:21,255 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10201 states, 10200 states have (on average 1.5030392156862744) internal successors, (15331), 10200 states have internal predecessors, (15331), 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)
[2024-12-02 15:37:21,269 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10201 states to 10201 states and 15331 transitions.
[2024-12-02 15:37:21,272 INFO  L78                 Accepts]: Start accepts. Automaton has 10201 states and 15331 transitions. Word has length 733
[2024-12-02 15:37:21,274 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:37:21,275 INFO  L471      AbstractCegarLoop]: Abstraction has 10201 states and 15331 transitions.
[2024-12-02 15:37:21,275 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 146.6) internal successors, (733), 5 states have internal predecessors, (733), 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)
[2024-12-02 15:37:21,275 INFO  L276                IsEmpty]: Start isEmpty. Operand 10201 states and 15331 transitions.
[2024-12-02 15:37:21,427 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5001
[2024-12-02 15:37:21,427 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:37:21,429 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:37:21,430 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 15:37:21,430 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:37:21,431 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:37:21,433 INFO  L85        PathProgramCache]: Analyzing trace with hash -1220084840, now seen corresponding path program 1 times
[2024-12-02 15:37:21,433 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:37:21,433 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096337771]
[2024-12-02 15:37:21,435 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:37:21,435 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:37:31,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:37:45,643 INFO  L134       CoverageAnalysis]: Checked inductivity of 572 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:37:45,643 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:37:45,643 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096337771]
[2024-12-02 15:37:45,643 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096337771] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:37:45,644 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:37:45,645 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:37:45,645 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738999202]
[2024-12-02 15:37:45,645 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:37:45,650 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:37:45,650 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:37:45,655 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:37:45,655 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:37:45,657 INFO  L87              Difference]: Start difference. First operand 10201 states and 15331 transitions. Second operand  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:37:45,817 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:37:45,817 INFO  L93              Difference]: Finished difference Result 18955 states and 28494 transitions.
[2024-12-02 15:37:45,818 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:37:45,819 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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 5000
[2024-12-02 15:37:45,821 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:37:45,842 INFO  L225             Difference]: With dead ends: 18955
[2024-12-02 15:37:45,843 INFO  L226             Difference]: Without dead ends: 10202
[2024-12-02 15:37:45,853 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:37:45,854 INFO  L435           NwaCegarLoop]: 13626 mSDtfsCounter, 0 mSDsluCounter, 13620 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27246 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:37:45,854 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27246 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:37:45,868 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10202 states.
[2024-12-02 15:37:45,986 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10202 to 10202.
[2024-12-02 15:37:46,001 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10202 states, 10201 states have (on average 1.502989902950691) internal successors, (15332), 10201 states have internal predecessors, (15332), 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)
[2024-12-02 15:37:46,018 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10202 states to 10202 states and 15332 transitions.
[2024-12-02 15:37:46,018 INFO  L78                 Accepts]: Start accepts. Automaton has 10202 states and 15332 transitions. Word has length 5000
[2024-12-02 15:37:46,022 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:37:46,023 INFO  L471      AbstractCegarLoop]: Abstraction has 10202 states and 15332 transitions.
[2024-12-02 15:37:46,024 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:37:46,025 INFO  L276                IsEmpty]: Start isEmpty. Operand 10202 states and 15332 transitions.
[2024-12-02 15:37:46,388 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5001
[2024-12-02 15:37:46,389 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:37:46,392 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2024-12-02 15:37:46,392 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 15:37:46,392 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:37:46,394 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:37:46,397 INFO  L85        PathProgramCache]: Analyzing trace with hash -1713820409, now seen corresponding path program 1 times
[2024-12-02 15:37:46,397 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:37:46,397 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754111207]
[2024-12-02 15:37:46,398 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:37:46,398 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:37:55,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:38:08,630 INFO  L134       CoverageAnalysis]: Checked inductivity of 572 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:38:08,631 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:38:08,631 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754111207]
[2024-12-02 15:38:08,631 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754111207] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:38:08,631 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:38:08,631 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:38:08,632 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075529573]
[2024-12-02 15:38:08,632 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:38:08,638 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:38:08,638 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:38:08,645 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:38:08,646 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:38:08,648 INFO  L87              Difference]: Start difference. First operand 10202 states and 15332 transitions. Second operand  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:38:09,008 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:38:09,008 INFO  L93              Difference]: Finished difference Result 18957 states and 28496 transitions.
[2024-12-02 15:38:09,009 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:38:09,010 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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 5000
[2024-12-02 15:38:09,012 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:38:09,030 INFO  L225             Difference]: With dead ends: 18957
[2024-12-02 15:38:09,030 INFO  L226             Difference]: Without dead ends: 10203
[2024-12-02 15:38:09,036 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:38:09,037 INFO  L435           NwaCegarLoop]: 13626 mSDtfsCounter, 0 mSDsluCounter, 13620 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27246 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:38:09,037 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27246 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:38:09,049 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10203 states.
[2024-12-02 15:38:09,135 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10203 to 10203.
[2024-12-02 15:38:09,148 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10203 states, 10202 states have (on average 1.502940599882376) internal successors, (15333), 10202 states have internal predecessors, (15333), 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)
[2024-12-02 15:38:09,161 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10203 states to 10203 states and 15333 transitions.
[2024-12-02 15:38:09,161 INFO  L78                 Accepts]: Start accepts. Automaton has 10203 states and 15333 transitions. Word has length 5000
[2024-12-02 15:38:09,163 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:38:09,163 INFO  L471      AbstractCegarLoop]: Abstraction has 10203 states and 15333 transitions.
[2024-12-02 15:38:09,164 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:38:09,164 INFO  L276                IsEmpty]: Start isEmpty. Operand 10203 states and 15333 transitions.
[2024-12-02 15:38:09,362 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5001
[2024-12-02 15:38:09,362 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:38:09,363 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2024-12-02 15:38:09,364 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 15:38:09,364 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:38:09,365 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:38:09,366 INFO  L85        PathProgramCache]: Analyzing trace with hash 503254520, now seen corresponding path program 1 times
[2024-12-02 15:38:09,366 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:38:09,366 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903295058]
[2024-12-02 15:38:09,367 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:38:09,367 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:38:18,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:38:32,536 INFO  L134       CoverageAnalysis]: Checked inductivity of 572 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:38:32,536 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:38:32,536 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903295058]
[2024-12-02 15:38:32,536 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903295058] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:38:32,536 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:38:32,537 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:38:32,537 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820381308]
[2024-12-02 15:38:32,537 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:38:32,542 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:38:32,542 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:38:32,547 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:38:32,547 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:38:32,549 INFO  L87              Difference]: Start difference. First operand 10203 states and 15333 transitions. Second operand  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:38:32,848 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:38:32,848 INFO  L93              Difference]: Finished difference Result 18959 states and 28498 transitions.
[2024-12-02 15:38:32,848 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:38:32,850 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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 5000
[2024-12-02 15:38:32,851 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:38:32,862 INFO  L225             Difference]: With dead ends: 18959
[2024-12-02 15:38:32,862 INFO  L226             Difference]: Without dead ends: 10204
[2024-12-02 15:38:32,868 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:38:32,869 INFO  L435           NwaCegarLoop]: 13626 mSDtfsCounter, 0 mSDsluCounter, 13620 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27246 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:38:32,869 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27246 Invalid, 7 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:38:32,879 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10204 states.
[2024-12-02 15:38:32,961 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10204 to 10204.
[2024-12-02 15:38:32,972 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10204 states, 10203 states have (on average 1.5028913064784868) internal successors, (15334), 10203 states have internal predecessors, (15334), 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)
[2024-12-02 15:38:32,991 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10204 states to 10204 states and 15334 transitions.
[2024-12-02 15:38:32,991 INFO  L78                 Accepts]: Start accepts. Automaton has 10204 states and 15334 transitions. Word has length 5000
[2024-12-02 15:38:32,993 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:38:32,993 INFO  L471      AbstractCegarLoop]: Abstraction has 10204 states and 15334 transitions.
[2024-12-02 15:38:32,995 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:38:32,995 INFO  L276                IsEmpty]: Start isEmpty. Operand 10204 states and 15334 transitions.
[2024-12-02 15:38:33,209 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5001
[2024-12-02 15:38:33,209 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:38:33,211 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2024-12-02 15:38:33,212 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 15:38:33,212 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:38:33,213 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:38:33,216 INFO  L85        PathProgramCache]: Analyzing trace with hash 892052967, now seen corresponding path program 1 times
[2024-12-02 15:38:33,216 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:38:33,216 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024816577]
[2024-12-02 15:38:33,217 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:38:33,217 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:38:40,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:38:53,612 INFO  L134       CoverageAnalysis]: Checked inductivity of 572 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:38:53,613 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:38:53,613 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024816577]
[2024-12-02 15:38:53,613 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024816577] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:38:53,613 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:38:53,614 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:38:53,614 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914529098]
[2024-12-02 15:38:53,614 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:38:53,620 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:38:53,620 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:38:53,627 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:38:53,627 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:38:53,629 INFO  L87              Difference]: Start difference. First operand 10204 states and 15334 transitions. Second operand  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:38:53,832 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:38:53,833 INFO  L93              Difference]: Finished difference Result 18961 states and 28500 transitions.
[2024-12-02 15:38:53,833 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:38:53,835 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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 5000
[2024-12-02 15:38:53,837 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:38:53,859 INFO  L225             Difference]: With dead ends: 18961
[2024-12-02 15:38:53,859 INFO  L226             Difference]: Without dead ends: 10205
[2024-12-02 15:38:53,869 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:38:53,870 INFO  L435           NwaCegarLoop]: 13626 mSDtfsCounter, 0 mSDsluCounter, 13620 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27246 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:38:53,870 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27246 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:38:53,889 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10205 states.
[2024-12-02 15:38:54,043 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10205 to 10205.
[2024-12-02 15:38:54,054 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10205 states, 10204 states have (on average 1.5028420227361818) internal successors, (15335), 10204 states have internal predecessors, (15335), 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)
[2024-12-02 15:38:54,079 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10205 states to 10205 states and 15335 transitions.
[2024-12-02 15:38:54,079 INFO  L78                 Accepts]: Start accepts. Automaton has 10205 states and 15335 transitions. Word has length 5000
[2024-12-02 15:38:54,081 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:38:54,082 INFO  L471      AbstractCegarLoop]: Abstraction has 10205 states and 15335 transitions.
[2024-12-02 15:38:54,083 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:38:54,083 INFO  L276                IsEmpty]: Start isEmpty. Operand 10205 states and 15335 transitions.
[2024-12-02 15:38:54,574 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5001
[2024-12-02 15:38:54,574 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:38:54,578 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2024-12-02 15:38:54,578 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 15:38:54,578 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:38:54,580 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:38:54,582 INFO  L85        PathProgramCache]: Analyzing trace with hash 1357669462, now seen corresponding path program 1 times
[2024-12-02 15:38:54,583 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:38:54,583 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839415849]
[2024-12-02 15:38:54,584 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:38:54,584 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:39:02,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:39:14,220 INFO  L134       CoverageAnalysis]: Checked inductivity of 572 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:39:14,220 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:39:14,220 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839415849]
[2024-12-02 15:39:14,220 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839415849] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:39:14,220 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:39:14,221 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:39:14,221 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23493582]
[2024-12-02 15:39:14,221 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:39:14,224 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:39:14,224 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:39:14,227 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:39:14,227 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:39:14,228 INFO  L87              Difference]: Start difference. First operand 10205 states and 15335 transitions. Second operand  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:39:14,593 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:39:14,593 INFO  L93              Difference]: Finished difference Result 18963 states and 28502 transitions.
[2024-12-02 15:39:14,594 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:39:14,595 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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 5000
[2024-12-02 15:39:14,596 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:39:14,602 INFO  L225             Difference]: With dead ends: 18963
[2024-12-02 15:39:14,602 INFO  L226             Difference]: Without dead ends: 10206
[2024-12-02 15:39:14,607 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:39:14,607 INFO  L435           NwaCegarLoop]: 13626 mSDtfsCounter, 0 mSDsluCounter, 13620 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27246 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:39:14,607 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27246 Invalid, 7 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:39:14,616 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10206 states.
[2024-12-02 15:39:14,683 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10206 to 10206.
[2024-12-02 15:39:14,692 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10206 states, 10205 states have (on average 1.5027927486526214) internal successors, (15336), 10205 states have internal predecessors, (15336), 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)
[2024-12-02 15:39:14,702 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10206 states to 10206 states and 15336 transitions.
[2024-12-02 15:39:14,702 INFO  L78                 Accepts]: Start accepts. Automaton has 10206 states and 15336 transitions. Word has length 5000
[2024-12-02 15:39:14,703 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:39:14,703 INFO  L471      AbstractCegarLoop]: Abstraction has 10206 states and 15336 transitions.
[2024-12-02 15:39:14,704 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:39:14,704 INFO  L276                IsEmpty]: Start isEmpty. Operand 10206 states and 15336 transitions.
[2024-12-02 15:39:14,814 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5001
[2024-12-02 15:39:14,814 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:39:14,817 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:39:14,817 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 15:39:14,817 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:39:14,818 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:39:14,819 INFO  L85        PathProgramCache]: Analyzing trace with hash -490283961, now seen corresponding path program 1 times
[2024-12-02 15:39:14,819 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:39:14,819 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736706542]
[2024-12-02 15:39:14,820 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:39:14,820 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:39:22,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:39:35,722 INFO  L134       CoverageAnalysis]: Checked inductivity of 572 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:39:35,722 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:39:35,723 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736706542]
[2024-12-02 15:39:35,723 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736706542] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:39:35,723 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:39:35,723 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:39:35,724 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036205023]
[2024-12-02 15:39:35,724 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:39:35,728 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:39:35,729 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:39:35,734 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:39:35,734 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:39:35,735 INFO  L87              Difference]: Start difference. First operand 10206 states and 15336 transitions. Second operand  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:39:35,882 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:39:35,883 INFO  L93              Difference]: Finished difference Result 18965 states and 28504 transitions.
[2024-12-02 15:39:35,883 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:39:35,884 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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 5000
[2024-12-02 15:39:35,887 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:39:35,897 INFO  L225             Difference]: With dead ends: 18965
[2024-12-02 15:39:35,897 INFO  L226             Difference]: Without dead ends: 10207
[2024-12-02 15:39:35,905 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:39:35,905 INFO  L435           NwaCegarLoop]: 13626 mSDtfsCounter, 0 mSDsluCounter, 13620 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27246 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:39:35,906 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27246 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:39:35,919 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10207 states.
[2024-12-02 15:39:36,070 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10207 to 10207.
[2024-12-02 15:39:36,083 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10207 states, 10206 states have (on average 1.5027434842249656) internal successors, (15337), 10206 states have internal predecessors, (15337), 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)
[2024-12-02 15:39:36,108 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10207 states to 10207 states and 15337 transitions.
[2024-12-02 15:39:36,108 INFO  L78                 Accepts]: Start accepts. Automaton has 10207 states and 15337 transitions. Word has length 5000
[2024-12-02 15:39:36,111 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:39:36,111 INFO  L471      AbstractCegarLoop]: Abstraction has 10207 states and 15337 transitions.
[2024-12-02 15:39:36,113 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:39:36,113 INFO  L276                IsEmpty]: Start isEmpty. Operand 10207 states and 15337 transitions.
[2024-12-02 15:39:36,559 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5001
[2024-12-02 15:39:36,559 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:39:36,562 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2024-12-02 15:39:36,562 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 15:39:36,562 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:39:36,564 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:39:36,566 INFO  L85        PathProgramCache]: Analyzing trace with hash -147417736, now seen corresponding path program 1 times
[2024-12-02 15:39:36,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:39:36,566 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463593857]
[2024-12-02 15:39:36,566 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:39:36,566 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:39:44,174 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:39:56,351 INFO  L134       CoverageAnalysis]: Checked inductivity of 572 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:39:56,351 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:39:56,351 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463593857]
[2024-12-02 15:39:56,351 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463593857] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:39:56,351 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:39:56,351 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:39:56,351 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114930508]
[2024-12-02 15:39:56,351 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:39:56,354 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:39:56,354 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:39:56,356 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:39:56,356 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:39:56,357 INFO  L87              Difference]: Start difference. First operand 10207 states and 15337 transitions. Second operand  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:39:56,454 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:39:56,455 INFO  L93              Difference]: Finished difference Result 18967 states and 28506 transitions.
[2024-12-02 15:39:56,455 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:39:56,456 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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 5000
[2024-12-02 15:39:56,458 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:39:56,465 INFO  L225             Difference]: With dead ends: 18967
[2024-12-02 15:39:56,465 INFO  L226             Difference]: Without dead ends: 10208
[2024-12-02 15:39:56,470 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:39:56,471 INFO  L435           NwaCegarLoop]: 13626 mSDtfsCounter, 0 mSDsluCounter, 13620 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27246 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:39:56,471 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27246 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:39:56,479 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10208 states.
[2024-12-02 15:39:56,570 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10208 to 10208.
[2024-12-02 15:39:56,581 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10208 states, 10207 states have (on average 1.5026942294503771) internal successors, (15338), 10207 states have internal predecessors, (15338), 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)
[2024-12-02 15:39:56,596 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10208 states to 10208 states and 15338 transitions.
[2024-12-02 15:39:56,596 INFO  L78                 Accepts]: Start accepts. Automaton has 10208 states and 15338 transitions. Word has length 5000
[2024-12-02 15:39:56,598 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:39:56,598 INFO  L471      AbstractCegarLoop]: Abstraction has 10208 states and 15338 transitions.
[2024-12-02 15:39:56,599 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:39:56,599 INFO  L276                IsEmpty]: Start isEmpty. Operand 10208 states and 15338 transitions.
[2024-12-02 15:39:56,827 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5001
[2024-12-02 15:39:56,827 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:39:56,830 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2024-12-02 15:39:56,830 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 15:39:56,830 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:39:56,832 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:39:56,834 INFO  L85        PathProgramCache]: Analyzing trace with hash -401744665, now seen corresponding path program 1 times
[2024-12-02 15:39:56,834 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:39:56,834 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524367488]
[2024-12-02 15:39:56,835 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:39:56,835 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:40:04,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:40:16,876 INFO  L134       CoverageAnalysis]: Checked inductivity of 572 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:40:16,876 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:40:16,876 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524367488]
[2024-12-02 15:40:16,876 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524367488] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:40:16,877 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:40:16,877 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:40:16,877 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154502085]
[2024-12-02 15:40:16,877 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:40:16,879 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:40:16,880 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:40:16,882 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:40:16,882 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:40:16,883 INFO  L87              Difference]: Start difference. First operand 10208 states and 15338 transitions. Second operand  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:40:16,980 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:40:16,981 INFO  L93              Difference]: Finished difference Result 18969 states and 28508 transitions.
[2024-12-02 15:40:16,981 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:40:16,982 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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 5000
[2024-12-02 15:40:16,984 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:40:16,991 INFO  L225             Difference]: With dead ends: 18969
[2024-12-02 15:40:16,991 INFO  L226             Difference]: Without dead ends: 10209
[2024-12-02 15:40:16,996 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:40:16,997 INFO  L435           NwaCegarLoop]: 13626 mSDtfsCounter, 0 mSDsluCounter, 13620 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27246 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:40:16,997 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27246 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:40:17,006 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10209 states.
[2024-12-02 15:40:17,081 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10209 to 10209.
[2024-12-02 15:40:17,090 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10209 states, 10208 states have (on average 1.5026449843260188) internal successors, (15339), 10208 states have internal predecessors, (15339), 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)
[2024-12-02 15:40:17,100 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10209 states to 10209 states and 15339 transitions.
[2024-12-02 15:40:17,100 INFO  L78                 Accepts]: Start accepts. Automaton has 10209 states and 15339 transitions. Word has length 5000
[2024-12-02 15:40:17,101 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:40:17,101 INFO  L471      AbstractCegarLoop]: Abstraction has 10209 states and 15339 transitions.
[2024-12-02 15:40:17,102 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1666.6666666666667) internal successors, (5000), 3 states have internal predecessors, (5000), 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)
[2024-12-02 15:40:17,102 INFO  L276                IsEmpty]: Start isEmpty. Operand 10209 states and 15339 transitions.
[2024-12-02 15:40:17,337 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5001
[2024-12-02 15:40:17,337 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:40:17,339 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:40:17,340 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-12-02 15:40:17,340 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:40:17,341 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:40:17,342 INFO  L85        PathProgramCache]: Analyzing trace with hash 292157142, now seen corresponding path program 1 times
[2024-12-02 15:40:17,342 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:40:17,342 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793419910]
[2024-12-02 15:40:17,343 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:40:17,343 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms