./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.3.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_bab25b43-b57a-4212-ab2f-b91367409d31/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/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_bab25b43-b57a-4212-ab2f-b91367409d31/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/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_bab25b43-b57a-4212-ab2f-b91367409d31/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 43eecf18c4fa6957dd491b119bf4e71f16d22755a6aeb07fea7d0a19b8daaf31
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-24 02:11:07,051 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-24 02:11:07,160 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-24 02:11:07,172 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 02:11:07,172 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 02:11:07,213 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 02:11:07,214 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 02:11:07,215 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 02:11:07,215 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 02:11:07,216 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-24 02:11:07,217 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 02:11:07,217 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 02:11:07,218 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 02:11:07,218 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-24 02:11:07,219 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-24 02:11:07,219 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 02:11:07,219 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-24 02:11:07,220 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-24 02:11:07,220 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-24 02:11:07,220 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 02:11:07,220 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 02:11:07,221 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 02:11:07,221 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-24 02:11:07,221 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 02:11:07,221 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-24 02:11:07,221 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 02:11:07,221 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-24 02:11:07,221 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 02:11:07,222 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-24 02:11:07,222 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 02:11:07,222 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 02:11:07,222 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-24 02:11:07,223 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 02:11:07,223 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-24 02:11:07,223 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 02:11:07,224 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 02:11:07,224 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 02:11:07,224 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-24 02:11:07,224 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 02:11:07,224 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-24 02:11:07,224 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 02:11:07,224 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 02:11:07,225 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 02:11:07,225 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 02:11:07,225 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 02:11:07,225 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_bab25b43-b57a-4212-ab2f-b91367409d31/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 -> 43eecf18c4fa6957dd491b119bf4e71f16d22755a6aeb07fea7d0a19b8daaf31
[2024-11-24 02:11:07,591 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 02:11:07,607 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 02:11:07,611 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 02:11:07,612 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-24 02:11:07,613 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-24 02:11:07,614 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.3.prop1-back-serstep.c
[2024-11-24 02:11:10,647 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/bin/uautomizer-verify-LYvppIcaGC/data/deef47e26/add9ab82baf142f588776dfa54ba35db/FLAG961b71124
[2024-11-24 02:11:11,326 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-24 02:11:11,326 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.3.prop1-back-serstep.c
[2024-11-24 02:11:11,368 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/bin/uautomizer-verify-LYvppIcaGC/data/deef47e26/add9ab82baf142f588776dfa54ba35db/FLAG961b71124
[2024-11-24 02:11:11,390 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/bin/uautomizer-verify-LYvppIcaGC/data/deef47e26/add9ab82baf142f588776dfa54ba35db
[2024-11-24 02:11:11,393 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 02:11:11,395 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 02:11:11,397 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 02:11:11,397 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 02:11:11,403 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 02:11:11,404 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:11:11" (1/1) ...
[2024-11-24 02:11:11,407 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3786b6bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:11, skipping insertion in model container
[2024-11-24 02:11:11,408 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:11:11" (1/1) ...
[2024-11-24 02:11:11,558 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-24 02:11:11,858 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_bab25b43-b57a-4212-ab2f-b91367409d31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.3.prop1-back-serstep.c[1177,1190]
[2024-11-24 02:11:12,769 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-24 02:11:12,780 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-24 02:11:12,791 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_bab25b43-b57a-4212-ab2f-b91367409d31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.3.prop1-back-serstep.c[1177,1190]
[2024-11-24 02:11:13,310 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-24 02:11:13,326 INFO  L204         MainTranslator]: Completed translation
[2024-11-24 02:11:13,327 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13 WrapperNode
[2024-11-24 02:11:13,327 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 02:11:13,329 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 02:11:13,329 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 02:11:13,329 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 02:11:13,338 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:13,589 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:15,691 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20616
[2024-11-24 02:11:15,692 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 02:11:15,693 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 02:11:15,694 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 02:11:15,695 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 02:11:15,706 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:15,706 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:16,100 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:16,683 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].
[2024-11-24 02:11:16,683 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:16,684 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:17,130 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:17,194 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:17,274 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:17,372 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:17,432 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:17,796 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 02:11:17,797 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 02:11:17,797 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 02:11:17,797 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-24 02:11:17,799 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (1/1) ...
[2024-11-24 02:11:17,805 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 02:11:17,819 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 02:11:17,835 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 02:11:17,842 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bab25b43-b57a-4212-ab2f-b91367409d31/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 02:11:17,868 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 02:11:17,868 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 02:11:17,868 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 02:11:17,868 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 02:11:19,336 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-24 02:11:19,338 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 02:12:15,731 INFO  L?                        ?]: Removed 11159 outVars from TransFormulas that were not future-live.
[2024-11-24 02:12:15,732 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-24 02:12:15,858 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 02:12:15,858 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-24 02:12:15,858 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:12:15 BoogieIcfgContainer
[2024-11-24 02:12:15,859 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 02:12:15,861 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 02:12:15,861 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 02:12:15,867 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-24 02:12:15,868 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:11:11" (1/3) ...
[2024-11-24 02:12:15,869 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa7a1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:12:15, skipping insertion in model container
[2024-11-24 02:12:15,870 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:11:13" (2/3) ...
[2024-11-24 02:12:15,870 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa7a1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:12:15, skipping insertion in model container
[2024-11-24 02:12:15,871 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:12:15" (3/3) ...
[2024-11-24 02:12:15,872 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.3.prop1-back-serstep.c
[2024-11-24 02:12:15,889 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 02:12:15,892 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.3.prop1-back-serstep.c that has 1 procedures, 7196 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-24 02:12:16,090 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 02:12:16,106 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;@6937dd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 02:12:16,107 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 02:12:16,135 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7196 states, 7194 states have (on average 1.5036141228801778) internal successors, (10817), 7195 states have internal predecessors, (10817), 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 02:12:16,192 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 576
[2024-11-24 02:12:16,192 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 02:12:16,193 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]
[2024-11-24 02:12:16,194 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:12:16,201 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:12:16,202 INFO  L85        PathProgramCache]: Analyzing trace with hash -1584040971, now seen corresponding path program 1 times
[2024-11-24 02:12:16,210 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:12:16,210 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7649432]
[2024-11-24 02:12:16,211 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:12:16,211 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:12:17,101 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:12:20,261 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 02:12:20,261 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:12:20,262 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7649432]
[2024-11-24 02:12:20,262 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7649432] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:12:20,262 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:12:20,263 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 02:12:20,264 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514734446]
[2024-11-24 02:12:20,265 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:12:20,270 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 02:12:20,272 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:12:20,299 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 02:12:20,299 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 02:12:20,317 INFO  L87              Difference]: Start difference. First operand  has 7196 states, 7194 states have (on average 1.5036141228801778) internal successors, (10817), 7195 states have internal predecessors, (10817), 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 143.75) internal successors, (575), 4 states have internal predecessors, (575), 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 02:12:20,855 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:12:20,856 INFO  L93              Difference]: Finished difference Result 14141 states and 21261 transitions.
[2024-11-24 02:12:20,857 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-24 02:12:20,858 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 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 575
[2024-11-24 02:12:20,864 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:12:20,918 INFO  L225             Difference]: With dead ends: 14141
[2024-11-24 02:12:20,919 INFO  L226             Difference]: Without dead ends: 7195
[2024-11-24 02:12:20,938 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 02:12:20,944 INFO  L435           NwaCegarLoop]: 10811 mSDtfsCounter, 0 mSDsluCounter, 21616 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32427 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 02:12:20,949 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32427 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 02:12:20,983 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7195 states.
[2024-11-24 02:12:21,203 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7195 to 7195.
[2024-11-24 02:12:21,220 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7195 states, 7194 states have (on average 1.5033361134278564) internal successors, (10815), 7194 states have internal predecessors, (10815), 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 02:12:21,257 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7195 states to 7195 states and 10815 transitions.
[2024-11-24 02:12:21,260 INFO  L78                 Accepts]: Start accepts. Automaton has 7195 states and 10815 transitions. Word has length 575
[2024-11-24 02:12:21,261 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:12:21,263 INFO  L471      AbstractCegarLoop]: Abstraction has 7195 states and 10815 transitions.
[2024-11-24 02:12:21,264 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 143.75) internal successors, (575), 4 states have internal predecessors, (575), 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 02:12:21,264 INFO  L276                IsEmpty]: Start isEmpty. Operand 7195 states and 10815 transitions.
[2024-11-24 02:12:21,282 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 577
[2024-11-24 02:12:21,282 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 02:12:21,282 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]
[2024-11-24 02:12:21,283 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-24 02:12:21,283 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:12:21,284 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:12:21,285 INFO  L85        PathProgramCache]: Analyzing trace with hash -1858930987, now seen corresponding path program 1 times
[2024-11-24 02:12:21,285 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:12:21,285 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255087336]
[2024-11-24 02:12:21,285 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:12:21,286 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:12:21,661 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:12:22,857 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 02:12:22,858 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:12:22,858 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255087336]
[2024-11-24 02:12:22,858 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255087336] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:12:22,858 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:12:22,858 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 02:12:22,858 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862610749]
[2024-11-24 02:12:22,858 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:12:22,860 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 02:12:22,860 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:12:22,865 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 02:12:22,865 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 02:12:22,866 INFO  L87              Difference]: Start difference. First operand 7195 states and 10815 transitions. Second operand  has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 02:12:23,224 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:12:23,224 INFO  L93              Difference]: Finished difference Result 14142 states and 21259 transitions.
[2024-11-24 02:12:23,224 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-24 02:12:23,225 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 576
[2024-11-24 02:12:23,226 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:12:23,254 INFO  L225             Difference]: With dead ends: 14142
[2024-11-24 02:12:23,254 INFO  L226             Difference]: Without dead ends: 7197
[2024-11-24 02:12:23,262 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 02:12:23,263 INFO  L435           NwaCegarLoop]: 10811 mSDtfsCounter, 0 mSDsluCounter, 21612 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32423 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 02:12:23,265 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32423 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 02:12:23,278 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7197 states.
[2024-11-24 02:12:23,403 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7197 to 7197.
[2024-11-24 02:12:23,419 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7197 states, 7196 states have (on average 1.5031962201222901) internal successors, (10817), 7196 states have internal predecessors, (10817), 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 02:12:23,455 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7197 states to 7197 states and 10817 transitions.
[2024-11-24 02:12:23,455 INFO  L78                 Accepts]: Start accepts. Automaton has 7197 states and 10817 transitions. Word has length 576
[2024-11-24 02:12:23,458 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:12:23,458 INFO  L471      AbstractCegarLoop]: Abstraction has 7197 states and 10817 transitions.
[2024-11-24 02:12:23,459 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 144.0) internal successors, (576), 4 states have internal predecessors, (576), 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 02:12:23,459 INFO  L276                IsEmpty]: Start isEmpty. Operand 7197 states and 10817 transitions.
[2024-11-24 02:12:23,473 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 578
[2024-11-24 02:12:23,473 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 02:12:23,474 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]
[2024-11-24 02:12:23,475 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-24 02:12:23,475 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:12:23,476 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:12:23,480 INFO  L85        PathProgramCache]: Analyzing trace with hash 1404719310, now seen corresponding path program 1 times
[2024-11-24 02:12:23,480 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:12:23,480 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549935703]
[2024-11-24 02:12:23,480 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:12:23,480 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:12:23,809 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:12:25,043 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 02:12:25,044 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:12:25,044 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549935703]
[2024-11-24 02:12:25,044 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549935703] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:12:25,044 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:12:25,044 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-24 02:12:25,045 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239399974]
[2024-11-24 02:12:25,045 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:12:25,046 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-24 02:12:25,046 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:12:25,047 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-24 02:12:25,047 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-24 02:12:25,051 INFO  L87              Difference]: Start difference. First operand 7197 states and 10817 transitions. Second operand  has 4 states, 4 states have (on average 144.25) internal successors, (577), 4 states have internal predecessors, (577), 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 02:12:25,351 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:12:25,351 INFO  L93              Difference]: Finished difference Result 14146 states and 21263 transitions.
[2024-11-24 02:12:25,352 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-24 02:12:25,353 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 144.25) internal successors, (577), 4 states have internal predecessors, (577), 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 577
[2024-11-24 02:12:25,356 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:12:25,382 INFO  L225             Difference]: With dead ends: 14146
[2024-11-24 02:12:25,382 INFO  L226             Difference]: Without dead ends: 7199
[2024-11-24 02:12:25,392 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 02:12:25,393 INFO  L435           NwaCegarLoop]: 10811 mSDtfsCounter, 0 mSDsluCounter, 21612 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32423 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 02:12:25,394 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32423 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 02:12:25,408 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7199 states.
[2024-11-24 02:12:25,702 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7199 to 7199.
[2024-11-24 02:12:25,713 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7199 states, 7198 states have (on average 1.5030564045568213) internal successors, (10819), 7198 states have internal predecessors, (10819), 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 02:12:25,749 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7199 states to 7199 states and 10819 transitions.
[2024-11-24 02:12:25,749 INFO  L78                 Accepts]: Start accepts. Automaton has 7199 states and 10819 transitions. Word has length 577
[2024-11-24 02:12:25,751 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:12:25,752 INFO  L471      AbstractCegarLoop]: Abstraction has 7199 states and 10819 transitions.
[2024-11-24 02:12:25,752 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 144.25) internal successors, (577), 4 states have internal predecessors, (577), 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 02:12:25,752 INFO  L276                IsEmpty]: Start isEmpty. Operand 7199 states and 10819 transitions.
[2024-11-24 02:12:25,765 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 579
[2024-11-24 02:12:25,765 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 02:12:25,766 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]
[2024-11-24 02:12:25,766 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-24 02:12:25,766 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:12:25,768 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:12:25,768 INFO  L85        PathProgramCache]: Analyzing trace with hash 1505516156, now seen corresponding path program 1 times
[2024-11-24 02:12:25,768 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:12:25,768 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096479080]
[2024-11-24 02:12:25,769 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:12:25,769 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:12:26,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:12:27,171 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 02:12:27,171 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:12:27,171 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096479080]
[2024-11-24 02:12:27,171 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096479080] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:12:27,171 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:12:27,171 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-24 02:12:27,171 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407455362]
[2024-11-24 02:12:27,176 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:12:27,176 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-24 02:12:27,177 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:12:27,178 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-24 02:12:27,178 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-24 02:12:27,179 INFO  L87              Difference]: Start difference. First operand 7199 states and 10819 transitions. Second operand  has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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 02:12:27,667 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:12:27,668 INFO  L93              Difference]: Finished difference Result 21083 states and 31690 transitions.
[2024-11-24 02:12:27,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-24 02:12:27,669 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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 578
[2024-11-24 02:12:27,671 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:12:27,727 INFO  L225             Difference]: With dead ends: 21083
[2024-11-24 02:12:27,728 INFO  L226             Difference]: Without dead ends: 14134
[2024-11-24 02:12:27,738 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 02:12:27,741 INFO  L435           NwaCegarLoop]: 10809 mSDtfsCounter, 10227 mSDsluCounter, 32048 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10227 SdHoareTripleChecker+Valid, 42857 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-24 02:12:27,742 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10227 Valid, 42857 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-24 02:12:27,770 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14134 states.
[2024-11-24 02:12:27,947 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14134 to 8083.
[2024-11-24 02:12:27,959 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8083 states, 8082 states have (on average 1.5027220984904726) internal successors, (12145), 8082 states have internal predecessors, (12145), 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 02:12:27,989 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8083 states to 8083 states and 12145 transitions.
[2024-11-24 02:12:27,989 INFO  L78                 Accepts]: Start accepts. Automaton has 8083 states and 12145 transitions. Word has length 578
[2024-11-24 02:12:27,991 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:12:27,991 INFO  L471      AbstractCegarLoop]: Abstraction has 8083 states and 12145 transitions.
[2024-11-24 02:12:27,991 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 115.6) internal successors, (578), 5 states have internal predecessors, (578), 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 02:12:27,992 INFO  L276                IsEmpty]: Start isEmpty. Operand 8083 states and 12145 transitions.
[2024-11-24 02:12:28,221 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3970
[2024-11-24 02:12:28,221 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 02:12:28,225 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 02:12:28,226 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-24 02:12:28,226 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:12:28,227 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:12:28,229 INFO  L85        PathProgramCache]: Analyzing trace with hash -1755905579, now seen corresponding path program 1 times
[2024-11-24 02:12:28,230 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:12:28,230 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421006695]
[2024-11-24 02:12:28,231 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:12:28,231 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:12:37,647 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:12:49,332 INFO  L134       CoverageAnalysis]: Checked inductivity of 448 backedges. 448 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 02:12:49,333 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:12:49,333 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421006695]
[2024-11-24 02:12:49,333 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421006695] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:12:49,333 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:12:49,334 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 02:12:49,334 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909057853]
[2024-11-24 02:12:49,334 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:12:49,343 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 02:12:49,343 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:12:49,353 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 02:12:49,356 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 02:12:49,358 INFO  L87              Difference]: Start difference. First operand 8083 states and 12145 transitions. Second operand  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 02:12:49,595 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:12:49,596 INFO  L93              Difference]: Finished difference Result 15033 states and 22592 transitions.
[2024-11-24 02:12:49,596 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-24 02:12:49,598 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 3969
[2024-11-24 02:12:49,600 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:12:49,620 INFO  L225             Difference]: With dead ends: 15033
[2024-11-24 02:12:49,621 INFO  L226             Difference]: Without dead ends: 8084
[2024-11-24 02:12:49,640 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 02:12:49,643 INFO  L435           NwaCegarLoop]: 10812 mSDtfsCounter, 0 mSDsluCounter, 10806 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21618 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 02:12:49,643 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21618 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 02:12:49,666 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8084 states.
[2024-11-24 02:12:49,863 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8084 to 8084.
[2024-11-24 02:12:49,874 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8084 states, 8083 states have (on average 1.5026599035011754) internal successors, (12146), 8083 states have internal predecessors, (12146), 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 02:12:49,906 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8084 states to 8084 states and 12146 transitions.
[2024-11-24 02:12:49,906 INFO  L78                 Accepts]: Start accepts. Automaton has 8084 states and 12146 transitions. Word has length 3969
[2024-11-24 02:12:49,908 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:12:49,908 INFO  L471      AbstractCegarLoop]: Abstraction has 8084 states and 12146 transitions.
[2024-11-24 02:12:49,910 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 02:12:49,910 INFO  L276                IsEmpty]: Start isEmpty. Operand 8084 states and 12146 transitions.
[2024-11-24 02:12:50,158 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3970
[2024-11-24 02:12:50,162 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 02:12:50,165 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 02:12:50,165 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-24 02:12:50,165 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:12:50,168 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:12:50,170 INFO  L85        PathProgramCache]: Analyzing trace with hash -1999213052, now seen corresponding path program 1 times
[2024-11-24 02:12:50,172 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:12:50,173 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359518825]
[2024-11-24 02:12:50,178 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:12:50,179 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:12:57,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:13:06,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 448 backedges. 448 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 02:13:06,475 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:13:06,475 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359518825]
[2024-11-24 02:13:06,476 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359518825] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:13:06,476 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:13:06,476 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 02:13:06,480 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017291666]
[2024-11-24 02:13:06,481 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:13:06,484 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 02:13:06,484 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:13:06,491 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 02:13:06,491 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 02:13:06,498 INFO  L87              Difference]: Start difference. First operand 8084 states and 12146 transitions. Second operand  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 02:13:06,735 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:13:06,738 INFO  L93              Difference]: Finished difference Result 15035 states and 22594 transitions.
[2024-11-24 02:13:06,739 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-24 02:13:06,741 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 3969
[2024-11-24 02:13:06,743 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:13:06,779 INFO  L225             Difference]: With dead ends: 15035
[2024-11-24 02:13:06,780 INFO  L226             Difference]: Without dead ends: 8085
[2024-11-24 02:13:06,798 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 02:13:06,799 INFO  L435           NwaCegarLoop]: 10812 mSDtfsCounter, 0 mSDsluCounter, 10806 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21618 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 02:13:06,799 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21618 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 02:13:06,821 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8085 states.
[2024-11-24 02:13:07,072 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8085 to 8085.
[2024-11-24 02:13:07,095 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8085 states, 8084 states have (on average 1.5025977238990598) internal successors, (12147), 8084 states have internal predecessors, (12147), 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 02:13:07,118 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8085 states to 8085 states and 12147 transitions.
[2024-11-24 02:13:07,122 INFO  L78                 Accepts]: Start accepts. Automaton has 8085 states and 12147 transitions. Word has length 3969
[2024-11-24 02:13:07,125 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:13:07,128 INFO  L471      AbstractCegarLoop]: Abstraction has 8085 states and 12147 transitions.
[2024-11-24 02:13:07,130 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 02:13:07,130 INFO  L276                IsEmpty]: Start isEmpty. Operand 8085 states and 12147 transitions.
[2024-11-24 02:13:07,735 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3970
[2024-11-24 02:13:07,735 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 02:13:07,745 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]
[2024-11-24 02:13:07,745 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-24 02:13:07,745 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:13:07,750 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:13:07,753 INFO  L85        PathProgramCache]: Analyzing trace with hash -1049180939, now seen corresponding path program 1 times
[2024-11-24 02:13:07,753 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:13:07,753 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35033966]
[2024-11-24 02:13:07,758 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:13:07,759 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:13:14,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:13:25,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 448 backedges. 448 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 02:13:25,043 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:13:25,043 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35033966]
[2024-11-24 02:13:25,044 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35033966] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:13:25,044 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:13:25,044 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 02:13:25,045 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251710723]
[2024-11-24 02:13:25,045 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:13:25,048 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 02:13:25,049 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:13:25,052 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 02:13:25,053 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 02:13:25,054 INFO  L87              Difference]: Start difference. First operand 8085 states and 12147 transitions. Second operand  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 02:13:25,211 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:13:25,211 INFO  L93              Difference]: Finished difference Result 15037 states and 22596 transitions.
[2024-11-24 02:13:25,211 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-24 02:13:25,213 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 3969
[2024-11-24 02:13:25,216 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:13:25,233 INFO  L225             Difference]: With dead ends: 15037
[2024-11-24 02:13:25,233 INFO  L226             Difference]: Without dead ends: 8086
[2024-11-24 02:13:25,240 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 02:13:25,242 INFO  L435           NwaCegarLoop]: 10812 mSDtfsCounter, 0 mSDsluCounter, 10806 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21618 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 02:13:25,243 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21618 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 02:13:25,255 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8086 states.
[2024-11-24 02:13:25,422 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8086 to 8086.
[2024-11-24 02:13:25,433 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8086 states, 8085 states have (on average 1.502535559678417) internal successors, (12148), 8085 states have internal predecessors, (12148), 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 02:13:25,452 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8086 states to 8086 states and 12148 transitions.
[2024-11-24 02:13:25,455 INFO  L78                 Accepts]: Start accepts. Automaton has 8086 states and 12148 transitions. Word has length 3969
[2024-11-24 02:13:25,458 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:13:25,460 INFO  L471      AbstractCegarLoop]: Abstraction has 8086 states and 12148 transitions.
[2024-11-24 02:13:25,461 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 02:13:25,463 INFO  L276                IsEmpty]: Start isEmpty. Operand 8086 states and 12148 transitions.
[2024-11-24 02:13:25,860 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3970
[2024-11-24 02:13:25,864 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 02:13:25,867 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 02:13:25,872 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-24 02:13:25,873 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:13:25,874 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:13:25,880 INFO  L85        PathProgramCache]: Analyzing trace with hash -1826706652, now seen corresponding path program 1 times
[2024-11-24 02:13:25,880 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:13:25,880 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238876626]
[2024-11-24 02:13:25,881 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:13:25,882 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:13:31,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 02:13:39,676 INFO  L134       CoverageAnalysis]: Checked inductivity of 448 backedges. 448 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-24 02:13:39,677 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 02:13:39,677 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238876626]
[2024-11-24 02:13:39,677 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238876626] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 02:13:39,677 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-24 02:13:39,678 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-24 02:13:39,678 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353483051]
[2024-11-24 02:13:39,678 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 02:13:39,681 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-24 02:13:39,681 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 02:13:39,684 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-24 02:13:39,684 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-24 02:13:39,686 INFO  L87              Difference]: Start difference. First operand 8086 states and 12148 transitions. Second operand  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 02:13:40,214 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 02:13:40,214 INFO  L93              Difference]: Finished difference Result 15039 states and 22598 transitions.
[2024-11-24 02:13:40,215 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-24 02:13:40,216 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 3969
[2024-11-24 02:13:40,219 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 02:13:40,233 INFO  L225             Difference]: With dead ends: 15039
[2024-11-24 02:13:40,233 INFO  L226             Difference]: Without dead ends: 8087
[2024-11-24 02:13:40,238 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 02:13:40,239 INFO  L435           NwaCegarLoop]: 10812 mSDtfsCounter, 0 mSDsluCounter, 10806 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21618 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 02:13:40,239 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21618 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 02:13:40,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8087 states.
[2024-11-24 02:13:40,365 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8087 to 8087.
[2024-11-24 02:13:40,375 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8087 states, 8086 states have (on average 1.5024734108335394) internal successors, (12149), 8086 states have internal predecessors, (12149), 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 02:13:40,391 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8087 states to 8087 states and 12149 transitions.
[2024-11-24 02:13:40,391 INFO  L78                 Accepts]: Start accepts. Automaton has 8087 states and 12149 transitions. Word has length 3969
[2024-11-24 02:13:40,395 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 02:13:40,395 INFO  L471      AbstractCegarLoop]: Abstraction has 8087 states and 12149 transitions.
[2024-11-24 02:13:40,397 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1323.0) internal successors, (3969), 3 states have internal predecessors, (3969), 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 02:13:40,397 INFO  L276                IsEmpty]: Start isEmpty. Operand 8087 states and 12149 transitions.
[2024-11-24 02:13:40,637 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3970
[2024-11-24 02:13:40,637 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 02:13:40,640 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 02:13:40,640 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-24 02:13:40,641 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 02:13:40,642 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 02:13:40,644 INFO  L85        PathProgramCache]: Analyzing trace with hash -1940888365, now seen corresponding path program 1 times
[2024-11-24 02:13:40,645 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 02:13:40,645 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393494248]
[2024-11-24 02:13:40,646 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 02:13:40,646 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 02:13:46,399 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat