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


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


Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.6.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC --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 df3f8d98fc56200249500c20837fbd03a7acc9d2584bf0ff8aa29f2b9e250a63
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:59:20,095 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:59:20,204 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-23 23:59:20,211 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:59:20,211 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:59:20,239 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:59:20,240 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:59:20,241 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:59:20,241 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:59:20,241 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-23 23:59:20,241 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:59:20,241 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:59:20,242 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:59:20,242 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-23 23:59:20,242 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-23 23:59:20,243 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:59:20,243 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:59:20,243 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-23 23:59:20,243 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-23 23:59:20,243 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:59:20,243 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:59:20,244 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:59:20,244 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-23 23:59:20,244 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:59:20,244 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-23 23:59:20,244 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:59:20,244 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-23 23:59:20,244 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:59:20,245 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-23 23:59:20,245 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:59:20,245 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:59:20,245 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-23 23:59:20,245 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:59:20,245 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-23 23:59:20,246 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:59:20,246 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:59:20,246 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:59:20,246 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-23 23:59:20,246 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:59:20,247 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-23 23:59:20,247 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 23:59:20,247 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:59:20,247 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:59:20,247 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:59:20,247 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:59:20,248 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_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC
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 -> df3f8d98fc56200249500c20837fbd03a7acc9d2584bf0ff8aa29f2b9e250a63
[2024-11-23 23:59:20,572 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:59:20,587 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:59:20,591 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:59:20,592 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-23 23:59:20,593 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-23 23:59:20,596 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.6.prop1-back-serstep.c
[2024-11-23 23:59:23,857 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/data/9bf8fdfa3/1e39f23a4db648af84ea3908e232e3fc/FLAGa7a802b70
[2024-11-23 23:59:24,496 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-23 23:59:24,496 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.6.prop1-back-serstep.c
[2024-11-23 23:59:24,548 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/data/9bf8fdfa3/1e39f23a4db648af84ea3908e232e3fc/FLAGa7a802b70
[2024-11-23 23:59:24,573 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/data/9bf8fdfa3/1e39f23a4db648af84ea3908e232e3fc
[2024-11-23 23:59:24,576 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:59:24,578 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:59:24,580 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:59:24,580 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:59:24,588 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:59:24,589 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:59:24" (1/1) ...
[2024-11-23 23:59:24,590 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53fe699e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:24, skipping insertion in model container
[2024-11-23 23:59:24,590 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:59:24" (1/1) ...
[2024-11-23 23:59:24,749 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:59:25,046 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_8167421d-5a92-46d9-8469-80dab2a21fec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.6.prop1-back-serstep.c[1177,1190]
[2024-11-23 23:59:26,245 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:59:26,257 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-23 23:59:26,277 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_8167421d-5a92-46d9-8469-80dab2a21fec/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.6.prop1-back-serstep.c[1177,1190]
[2024-11-23 23:59:27,118 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:59:27,135 INFO  L204         MainTranslator]: Completed translation
[2024-11-23 23:59:27,136 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27 WrapperNode
[2024-11-23 23:59:27,137 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:59:27,139 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:59:27,139 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:59:27,139 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:59:27,156 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:27,453 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:30,408 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27065
[2024-11-23 23:59:30,408 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:59:30,409 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:59:30,409 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:59:30,409 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:59:30,420 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:30,420 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:31,083 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:31,564 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-23 23:59:31,564 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:31,564 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:32,347 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:32,411 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:32,724 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:32,852 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:32,936 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:33,311 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:59:33,312 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:59:33,312 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:59:33,313 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:59:33,313 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (1/1) ...
[2024-11-23 23:59:33,320 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:59:33,337 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:59:33,358 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:59:33,367 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8167421d-5a92-46d9-8469-80dab2a21fec/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:59:33,397 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:59:33,397 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 23:59:33,398 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:59:33,398 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:59:35,117 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-23 23:59:35,120 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:01:27,270 INFO  L?                        ?]: Removed 14685 outVars from TransFormulas that were not future-live.
[2024-11-24 00:01:27,270 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-24 00:01:27,396 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:01:27,396 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-24 00:01:27,397 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:27 BoogieIcfgContainer
[2024-11-24 00:01:27,397 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:01:27,400 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:01:27,400 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:01:27,406 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:01:27,406 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:59:24" (1/3) ...
[2024-11-24 00:01:27,407 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e94f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:01:27, skipping insertion in model container
[2024-11-24 00:01:27,407 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:59:27" (2/3) ...
[2024-11-24 00:01:27,408 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e94f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:01:27, skipping insertion in model container
[2024-11-24 00:01:27,408 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:01:27" (3/3) ...
[2024-11-24 00:01:27,409 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.6.prop1-back-serstep.c
[2024-11-24 00:01:27,427 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:01:27,429 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.6.prop1-back-serstep.c that has 1 procedures, 9446 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-24 00:01:27,670 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:01:27,688 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;@36ae0e76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:01:27,688 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 00:01:27,726 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 9446 states, 9444 states have (on average 1.503706056755612) internal successors, (14201), 9445 states have internal predecessors, (14201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:27,797 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 740
[2024-11-24 00:01:27,798 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:01:27,799 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, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:27,800 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:01:27,806 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:27,807 INFO  L85        PathProgramCache]: Analyzing trace with hash 62125593, now seen corresponding path program 1 times
[2024-11-24 00:01:27,816 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:01:27,817 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559024236]
[2024-11-24 00:01:27,817 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:27,818 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:01:29,075 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:33,091 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:33,091 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:01:33,092 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559024236]
[2024-11-24 00:01:33,093 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559024236] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:01:33,094 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:01:33,094 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:01:33,096 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245347205]
[2024-11-24 00:01:33,098 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:01:33,108 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:01:33,109 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:01:33,139 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:01:33,140 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:01:33,168 INFO  L87              Difference]: Start difference. First operand  has 9446 states, 9444 states have (on average 1.503706056755612) internal successors, (14201), 9445 states have internal predecessors, (14201), 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 184.75) internal successors, (739), 4 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:33,942 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:33,942 INFO  L93              Difference]: Finished difference Result 18577 states and 27933 transitions.
[2024-11-24 00:01:33,944 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-24 00:01:33,946 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 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 739
[2024-11-24 00:01:33,952 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:34,029 INFO  L225             Difference]: With dead ends: 18577
[2024-11-24 00:01:34,032 INFO  L226             Difference]: Without dead ends: 9445
[2024-11-24 00:01:34,059 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:01:34,064 INFO  L435           NwaCegarLoop]: 14195 mSDtfsCounter, 0 mSDsluCounter, 28384 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42579 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:01:34,065 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42579 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:01:34,108 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9445 states.
[2024-11-24 00:01:34,431 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9445 to 9445.
[2024-11-24 00:01:34,462 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9445 states, 9444 states have (on average 1.5034942820838628) internal successors, (14199), 9444 states have internal predecessors, (14199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:34,520 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9445 states to 9445 states and 14199 transitions.
[2024-11-24 00:01:34,522 INFO  L78                 Accepts]: Start accepts. Automaton has 9445 states and 14199 transitions. Word has length 739
[2024-11-24 00:01:34,528 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:34,530 INFO  L471      AbstractCegarLoop]: Abstraction has 9445 states and 14199 transitions.
[2024-11-24 00:01:34,531 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:34,531 INFO  L276                IsEmpty]: Start isEmpty. Operand 9445 states and 14199 transitions.
[2024-11-24 00:01:34,572 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 741
[2024-11-24 00:01:34,572 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:01:34,572 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, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:34,573 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 00:01:34,573 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:01:34,575 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:34,575 INFO  L85        PathProgramCache]: Analyzing trace with hash 1927593307, now seen corresponding path program 1 times
[2024-11-24 00:01:34,576 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:01:34,576 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082842699]
[2024-11-24 00:01:34,577 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:34,577 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:01:35,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:37,159 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:37,159 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:01:37,161 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082842699]
[2024-11-24 00:01:37,161 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082842699] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:01:37,161 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:01:37,162 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 00:01:37,162 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419352108]
[2024-11-24 00:01:37,162 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:01:37,164 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 00:01:37,164 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:01:37,169 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 00:01:37,169 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:01:37,170 INFO  L87              Difference]: Start difference. First operand 9445 states and 14199 transitions. Second operand  has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:37,657 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:37,657 INFO  L93              Difference]: Finished difference Result 18578 states and 27931 transitions.
[2024-11-24 00:01:37,658 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-24 00:01:37,659 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 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 740
[2024-11-24 00:01:37,663 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:37,699 INFO  L225             Difference]: With dead ends: 18578
[2024-11-24 00:01:37,699 INFO  L226             Difference]: Without dead ends: 9447
[2024-11-24 00:01:37,709 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 00:01:37,711 INFO  L435           NwaCegarLoop]: 14195 mSDtfsCounter, 0 mSDsluCounter, 28380 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42575 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:01:37,713 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42575 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:01:37,731 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9447 states.
[2024-11-24 00:01:37,916 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9447 to 9447.
[2024-11-24 00:01:37,931 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9447 states, 9446 states have (on average 1.503387677323735) internal successors, (14201), 9446 states have internal predecessors, (14201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:37,978 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9447 states to 9447 states and 14201 transitions.
[2024-11-24 00:01:37,978 INFO  L78                 Accepts]: Start accepts. Automaton has 9447 states and 14201 transitions. Word has length 740
[2024-11-24 00:01:37,981 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:37,981 INFO  L471      AbstractCegarLoop]: Abstraction has 9447 states and 14201 transitions.
[2024-11-24 00:01:37,982 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:37,982 INFO  L276                IsEmpty]: Start isEmpty. Operand 9447 states and 14201 transitions.
[2024-11-24 00:01:38,006 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 742
[2024-11-24 00:01:38,006 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:01:38,007 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, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:01:38,008 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 00:01:38,008 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:01:38,009 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:38,010 INFO  L85        PathProgramCache]: Analyzing trace with hash -1472110798, now seen corresponding path program 1 times
[2024-11-24 00:01:38,010 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:01:38,010 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653217701]
[2024-11-24 00:01:38,010 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:38,011 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:01:38,530 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:01:40,846 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:01:40,847 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:01:40,847 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653217701]
[2024-11-24 00:01:40,847 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653217701] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:01:40,847 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:01:40,847 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-24 00:01:40,848 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576511250]
[2024-11-24 00:01:40,848 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:01:40,849 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 00:01:40,849 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:01:40,851 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 00:01:40,851 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 00:01:40,852 INFO  L87              Difference]: Start difference. First operand 9447 states and 14201 transitions. Second operand  has 5 states, 5 states have (on average 148.2) internal successors, (741), 5 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:41,616 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:01:41,616 INFO  L93              Difference]: Finished difference Result 27699 states and 41644 transitions.
[2024-11-24 00:01:41,616 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-24 00:01:41,617 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 148.2) internal successors, (741), 5 states have internal predecessors, (741), 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 741
[2024-11-24 00:01:41,621 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:01:41,707 INFO  L225             Difference]: With dead ends: 27699
[2024-11-24 00:01:41,707 INFO  L226             Difference]: Without dead ends: 18566
[2024-11-24 00:01:41,723 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-24 00:01:41,726 INFO  L435           NwaCegarLoop]: 14193 mSDtfsCounter, 13448 mSDsluCounter, 42104 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13448 SdHoareTripleChecker+Valid, 56297 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
[2024-11-24 00:01:41,727 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [13448 Valid, 56297 Invalid, 22 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:01:41,766 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18566 states.
[2024-11-24 00:01:42,072 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18566 to 10597.
[2024-11-24 00:01:42,091 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10597 states, 10596 states have (on average 1.5029256323140807) internal successors, (15925), 10596 states have internal predecessors, (15925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:42,150 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10597 states to 10597 states and 15925 transitions.
[2024-11-24 00:01:42,151 INFO  L78                 Accepts]: Start accepts. Automaton has 10597 states and 15925 transitions. Word has length 741
[2024-11-24 00:01:42,156 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:01:42,156 INFO  L471      AbstractCegarLoop]: Abstraction has 10597 states and 15925 transitions.
[2024-11-24 00:01:42,157 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 148.2) internal successors, (741), 5 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:01:42,157 INFO  L276                IsEmpty]: Start isEmpty. Operand 10597 states and 15925 transitions.
[2024-11-24 00:01:42,732 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5199
[2024-11-24 00:01:42,732 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:01:42,736 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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[2024-11-24 00:01:42,737 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 00:01:42,737 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:01:42,740 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:01:42,743 INFO  L85        PathProgramCache]: Analyzing trace with hash 602900375, now seen corresponding path program 1 times
[2024-11-24 00:01:42,744 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:01:42,744 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615725053]
[2024-11-24 00:01:42,746 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:01:42,747 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:02:00,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:02:21,518 INFO  L134       CoverageAnalysis]: Checked inductivity of 580 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:02:21,518 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:02:21,518 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615725053]
[2024-11-24 00:02:21,519 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615725053] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:02:21,519 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:02:21,520 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:02:21,520 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357828657]
[2024-11-24 00:02:21,520 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:02:21,977 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:02:21,977 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:02:21,984 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:02:21,984 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:02:21,986 INFO  L87              Difference]: Start difference. First operand 10597 states and 15925 transitions. Second operand  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:22,263 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:02:22,264 INFO  L93              Difference]: Finished difference Result 19731 states and 29658 transitions.
[2024-11-24 00:02:22,264 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-24 00:02:22,266 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 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 5198
[2024-11-24 00:02:22,270 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:02:22,295 INFO  L225             Difference]: With dead ends: 19731
[2024-11-24 00:02:22,295 INFO  L226             Difference]: Without dead ends: 10598
[2024-11-24 00:02:22,307 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
[2024-11-24 00:02:22,309 INFO  L435           NwaCegarLoop]: 14196 mSDtfsCounter, 0 mSDsluCounter, 14190 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28386 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:02:22,311 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28386 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:02:22,332 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10598 states.
[2024-11-24 00:02:22,522 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10598 to 10598.
[2024-11-24 00:02:22,540 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10598 states, 10597 states have (on average 1.5028781730678493) internal successors, (15926), 10597 states have internal predecessors, (15926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:22,582 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10598 states to 10598 states and 15926 transitions.
[2024-11-24 00:02:22,582 INFO  L78                 Accepts]: Start accepts. Automaton has 10598 states and 15926 transitions. Word has length 5198
[2024-11-24 00:02:22,585 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:02:22,586 INFO  L471      AbstractCegarLoop]: Abstraction has 10598 states and 15926 transitions.
[2024-11-24 00:02:22,588 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:22,588 INFO  L276                IsEmpty]: Start isEmpty. Operand 10598 states and 15926 transitions.
[2024-11-24 00:02:22,934 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5199
[2024-11-24 00:02:22,934 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:02:22,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:02:22,940 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 00:02:22,940 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:02:22,942 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:02:22,946 INFO  L85        PathProgramCache]: Analyzing trace with hash 831006024, now seen corresponding path program 1 times
[2024-11-24 00:02:22,947 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:02:22,947 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412179763]
[2024-11-24 00:02:22,949 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:02:22,949 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:02:32,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:02:51,907 INFO  L134       CoverageAnalysis]: Checked inductivity of 580 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:02:51,908 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:02:51,909 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412179763]
[2024-11-24 00:02:51,909 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412179763] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:02:51,909 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:02:51,910 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:02:51,912 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181594522]
[2024-11-24 00:02:51,913 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:02:51,921 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:02:51,922 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:02:51,930 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:02:51,934 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:02:51,937 INFO  L87              Difference]: Start difference. First operand 10598 states and 15926 transitions. Second operand  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:52,338 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:02:52,339 INFO  L93              Difference]: Finished difference Result 19733 states and 29660 transitions.
[2024-11-24 00:02:52,339 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-24 00:02:52,341 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 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 5198
[2024-11-24 00:02:52,345 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:02:52,367 INFO  L225             Difference]: With dead ends: 19733
[2024-11-24 00:02:52,367 INFO  L226             Difference]: Without dead ends: 10599
[2024-11-24 00:02:52,389 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
[2024-11-24 00:02:52,390 INFO  L435           NwaCegarLoop]: 14196 mSDtfsCounter, 0 mSDsluCounter, 14190 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28386 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:02:52,390 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28386 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:02:52,422 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10599 states.
[2024-11-24 00:02:52,697 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10599 to 10599.
[2024-11-24 00:02:52,728 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10599 states, 10598 states have (on average 1.5028307227778825) internal successors, (15927), 10598 states have internal predecessors, (15927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:52,807 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10599 states to 10599 states and 15927 transitions.
[2024-11-24 00:02:52,808 INFO  L78                 Accepts]: Start accepts. Automaton has 10599 states and 15927 transitions. Word has length 5198
[2024-11-24 00:02:52,813 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:02:52,816 INFO  L471      AbstractCegarLoop]: Abstraction has 10599 states and 15927 transitions.
[2024-11-24 00:02:52,819 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:02:52,822 INFO  L276                IsEmpty]: Start isEmpty. Operand 10599 states and 15927 transitions.
[2024-11-24 00:02:53,342 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5199
[2024-11-24 00:02:53,342 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:02:53,345 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-24 00:02:53,345 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 00:02:53,351 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:02:53,353 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:02:53,360 INFO  L85        PathProgramCache]: Analyzing trace with hash 1470973239, now seen corresponding path program 1 times
[2024-11-24 00:02:53,360 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:02:53,360 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781884866]
[2024-11-24 00:02:53,362 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:02:53,362 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:02,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:22,501 INFO  L134       CoverageAnalysis]: Checked inductivity of 580 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:22,501 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:22,501 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781884866]
[2024-11-24 00:03:22,501 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781884866] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:03:22,501 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:03:22,502 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:03:22,503 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129802615]
[2024-11-24 00:03:22,503 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:03:22,511 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:03:22,514 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:22,524 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:03:22,526 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:03:22,533 INFO  L87              Difference]: Start difference. First operand 10599 states and 15927 transitions. Second operand  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:22,855 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:22,856 INFO  L93              Difference]: Finished difference Result 19735 states and 29662 transitions.
[2024-11-24 00:03:22,857 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-24 00:03:22,860 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 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 5198
[2024-11-24 00:03:22,865 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:22,906 INFO  L225             Difference]: With dead ends: 19735
[2024-11-24 00:03:22,910 INFO  L226             Difference]: Without dead ends: 10600
[2024-11-24 00:03:22,927 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
[2024-11-24 00:03:22,928 INFO  L435           NwaCegarLoop]: 14196 mSDtfsCounter, 0 mSDsluCounter, 14190 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28386 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 00:03:22,932 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28386 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 00:03:22,957 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10600 states.
[2024-11-24 00:03:23,176 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10600 to 10600.
[2024-11-24 00:03:23,206 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10600 states, 10599 states have (on average 1.5027832814416455) internal successors, (15928), 10599 states have internal predecessors, (15928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:23,244 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10600 states to 10600 states and 15928 transitions.
[2024-11-24 00:03:23,245 INFO  L78                 Accepts]: Start accepts. Automaton has 10600 states and 15928 transitions. Word has length 5198
[2024-11-24 00:03:23,247 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:23,247 INFO  L471      AbstractCegarLoop]: Abstraction has 10600 states and 15928 transitions.
[2024-11-24 00:03:23,253 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:23,254 INFO  L276                IsEmpty]: Start isEmpty. Operand 10600 states and 15928 transitions.
[2024-11-24 00:03:23,981 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5199
[2024-11-24 00:03:23,981 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:03:23,987 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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[2024-11-24 00:03:23,987 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 00:03:23,988 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:03:23,990 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:23,997 INFO  L85        PathProgramCache]: Analyzing trace with hash 1029959206, now seen corresponding path program 1 times
[2024-11-24 00:03:24,000 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:24,001 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323916090]
[2024-11-24 00:03:24,007 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:24,007 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:03:34,542 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:03:52,794 INFO  L134       CoverageAnalysis]: Checked inductivity of 580 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:03:52,794 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:03:52,794 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323916090]
[2024-11-24 00:03:52,794 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323916090] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:03:52,794 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:03:52,795 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:03:52,795 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142507379]
[2024-11-24 00:03:52,795 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:03:52,800 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:03:52,800 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:03:52,805 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:03:52,805 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:03:52,808 INFO  L87              Difference]: Start difference. First operand 10600 states and 15928 transitions. Second operand  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:52,980 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:03:52,980 INFO  L93              Difference]: Finished difference Result 19737 states and 29664 transitions.
[2024-11-24 00:03:52,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-24 00:03:52,983 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 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 5198
[2024-11-24 00:03:52,986 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:03:53,007 INFO  L225             Difference]: With dead ends: 19737
[2024-11-24 00:03:53,007 INFO  L226             Difference]: Without dead ends: 10601
[2024-11-24 00:03:53,016 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
[2024-11-24 00:03:53,017 INFO  L435           NwaCegarLoop]: 14196 mSDtfsCounter, 0 mSDsluCounter, 14190 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28386 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
[2024-11-24 00:03:53,018 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28386 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:03:53,032 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10601 states.
[2024-11-24 00:03:53,155 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10601 to 10601.
[2024-11-24 00:03:53,170 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10601 states, 10600 states have (on average 1.5027358490566038) internal successors, (15929), 10600 states have internal predecessors, (15929), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:53,187 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10601 states to 10601 states and 15929 transitions.
[2024-11-24 00:03:53,187 INFO  L78                 Accepts]: Start accepts. Automaton has 10601 states and 15929 transitions. Word has length 5198
[2024-11-24 00:03:53,190 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:03:53,190 INFO  L471      AbstractCegarLoop]: Abstraction has 10601 states and 15929 transitions.
[2024-11-24 00:03:53,193 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:03:53,193 INFO  L276                IsEmpty]: Start isEmpty. Operand 10601 states and 15929 transitions.
[2024-11-24 00:03:53,647 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5199
[2024-11-24 00:03:53,647 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:03:53,650 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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[2024-11-24 00:03:53,651 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-24 00:03:53,651 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:03:53,653 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:03:53,657 INFO  L85        PathProgramCache]: Analyzing trace with hash 296731735, now seen corresponding path program 1 times
[2024-11-24 00:03:53,657 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:03:53,657 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163412996]
[2024-11-24 00:03:53,659 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:03:53,659 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:04:03,731 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:04:18,651 INFO  L134       CoverageAnalysis]: Checked inductivity of 580 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 00:04:18,651 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:04:18,651 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163412996]
[2024-11-24 00:04:18,651 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163412996] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:04:18,651 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 00:04:18,652 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 00:04:18,652 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759354727]
[2024-11-24 00:04:18,652 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:04:18,655 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 00:04:18,655 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:04:18,657 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 00:04:18,658 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 00:04:18,660 INFO  L87              Difference]: Start difference. First operand 10601 states and 15929 transitions. Second operand  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:04:18,790 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:04:18,791 INFO  L93              Difference]: Finished difference Result 19739 states and 29666 transitions.
[2024-11-24 00:04:18,791 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-24 00:04:18,792 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 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 5198
[2024-11-24 00:04:18,796 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:04:18,817 INFO  L225             Difference]: With dead ends: 19739
[2024-11-24 00:04:18,817 INFO  L226             Difference]: Without dead ends: 10602
[2024-11-24 00:04:18,825 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
[2024-11-24 00:04:18,825 INFO  L435           NwaCegarLoop]: 14196 mSDtfsCounter, 0 mSDsluCounter, 14190 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28386 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
[2024-11-24 00:04:18,826 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28386 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:04:18,839 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10602 states.
[2024-11-24 00:04:18,942 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10602 to 10602.
[2024-11-24 00:04:18,953 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10602 states, 10601 states have (on average 1.5026884256202244) internal successors, (15930), 10601 states have internal predecessors, (15930), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:04:18,968 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10602 states to 10602 states and 15930 transitions.
[2024-11-24 00:04:18,968 INFO  L78                 Accepts]: Start accepts. Automaton has 10602 states and 15930 transitions. Word has length 5198
[2024-11-24 00:04:18,971 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:04:18,971 INFO  L471      AbstractCegarLoop]: Abstraction has 10602 states and 15930 transitions.
[2024-11-24 00:04:18,973 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1732.6666666666667) internal successors, (5198), 3 states have internal predecessors, (5198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-24 00:04:18,973 INFO  L276                IsEmpty]: Start isEmpty. Operand 10602 states and 15930 transitions.
[2024-11-24 00:04:19,275 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5199
[2024-11-24 00:04:19,275 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:04:19,279 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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[2024-11-24 00:04:19,279 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-24 00:04:19,279 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:04:19,281 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:04:19,283 INFO  L85        PathProgramCache]: Analyzing trace with hash -865405368, now seen corresponding path program 1 times
[2024-11-24 00:04:19,283 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:04:19,283 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428148264]
[2024-11-24 00:04:19,284 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:04:19,284 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:04:27,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat