./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.3.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 826ab2ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd --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 194c78e05d2f7b76dcae21a4fa78cc4434982acb928d706441a970aa3e485794
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 12:50:49,675 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-13 12:50:49,751 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-13 12:50:49,763 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 12:50:49,763 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 12:50:49,807 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 12:50:49,807 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 12:50:49,808 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 12:50:49,808 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 12:50:49,808 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-13 12:50:49,808 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 12:50:49,808 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 12:50:49,810 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 12:50:49,810 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-13 12:50:49,811 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-13 12:50:49,812 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 12:50:49,812 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-13 12:50:49,812 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-13 12:50:49,812 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-13 12:50:49,812 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 12:50:49,813 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 12:50:49,813 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 12:50:49,813 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-13 12:50:49,813 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-13 12:50:49,813 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-13 12:50:49,814 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 12:50:49,814 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-13 12:50:49,814 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 12:50:49,814 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-13 12:50:49,814 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 12:50:49,814 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 12:50:49,815 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 12:50:49,815 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 12:50:49,815 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-13 12:50:49,815 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-13 12:50:49,815 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 12:50:49,815 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 12:50:49,815 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 12:50:49,815 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 12:50:49,816 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_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd
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 -> 194c78e05d2f7b76dcae21a4fa78cc4434982acb928d706441a970aa3e485794
[2024-11-13 12:50:50,160 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 12:50:50,176 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 12:50:50,178 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 12:50:50,180 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-13 12:50:50,181 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-13 12:50:50,184 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.3.prop1-back-serstep.c
Unable to find full path for "g++"
[2024-11-13 12:50:52,213 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-13 12:50:52,916 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-13 12:50:52,920 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.3.prop1-back-serstep.c
[2024-11-13 12:50:52,963 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/data/1d88a6b2f/a01f7e9bb6b94df48f765af4fada8d3e/FLAG3b998c149
[2024-11-13 12:50:52,993 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/data/1d88a6b2f/a01f7e9bb6b94df48f765af4fada8d3e
[2024-11-13 12:50:52,997 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 12:50:52,999 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 12:50:53,002 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 12:50:53,002 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 12:50:53,012 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 12:50:53,014 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:50:52" (1/1) ...
[2024-11-13 12:50:53,015 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eda4fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:53, skipping insertion in model container
[2024-11-13 12:50:53,016 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:50:52" (1/1) ...
[2024-11-13 12:50:53,133 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-13 12:50:53,437 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_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.3.prop1-back-serstep.c[1170,1183]
[2024-11-13 12:50:54,314 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 12:50:54,331 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-13 12:50:54,345 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_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.3.prop1-back-serstep.c[1170,1183]
[2024-11-13 12:50:54,839 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 12:50:54,860 INFO  L204         MainTranslator]: Completed translation
[2024-11-13 12:50:54,861 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54 WrapperNode
[2024-11-13 12:50:54,863 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 12:50:54,865 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 12:50:54,865 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 12:50:54,865 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 12:50:54,873 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:55,070 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:56,896 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13165
[2024-11-13 12:50:56,897 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 12:50:56,898 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 12:50:56,898 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 12:50:56,899 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 12:50:56,928 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:56,928 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:57,693 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:57,885 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].
[2024-11-13 12:50:57,885 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:57,885 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:58,392 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:58,473 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:58,551 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:58,593 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:58,811 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 12:50:58,812 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 12:50:58,812 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 12:50:58,812 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-13 12:50:58,813 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (1/1) ...
[2024-11-13 12:50:58,819 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 12:50:58,841 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 12:50:58,857 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 12:50:58,863 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_359f7cae-1b6c-44dd-8b43-7e4d569cb8ab/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 12:50:58,891 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 12:50:58,891 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-13 12:50:58,892 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 12:50:58,892 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 12:51:00,053 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-13 12:51:00,056 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 12:51:31,369 INFO  L?                        ?]: Removed 7234 outVars from TransFormulas that were not future-live.
[2024-11-13 12:51:31,369 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-13 12:51:31,468 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 12:51:31,472 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 12:51:31,472 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:51:31 BoogieIcfgContainer
[2024-11-13 12:51:31,473 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 12:51:31,478 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 12:51:31,478 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 12:51:31,485 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-13 12:51:31,486 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:50:52" (1/3) ...
[2024-11-13 12:51:31,487 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b448cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:51:31, skipping insertion in model container
[2024-11-13 12:51:31,488 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:50:54" (2/3) ...
[2024-11-13 12:51:31,488 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65b448cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:51:31, skipping insertion in model container
[2024-11-13 12:51:31,488 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:51:31" (3/3) ...
[2024-11-13 12:51:31,491 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.at.3.prop1-back-serstep.c
[2024-11-13 12:51:31,509 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 12:51:31,512 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.at.3.prop1-back-serstep.c that has 1 procedures, 4558 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 12:51:31,683 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 12:51:31,702 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;@2dfde308, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 12:51:31,702 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 12:51:31,728 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4558 states, 4556 states have (on average 1.4997805092186127) internal successors, (6833), 4557 states have internal predecessors, (6833), 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)
[2024-11-13 12:51:31,771 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 542
[2024-11-13 12:51:31,771 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:51:31,772 INFO  L215           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]
[2024-11-13 12:51:31,773 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:51:31,777 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:51:31,778 INFO  L85        PathProgramCache]: Analyzing trace with hash 1562850663, now seen corresponding path program 1 times
[2024-11-13 12:51:31,787 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:51:31,788 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012404378]
[2024-11-13 12:51:31,789 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:51:31,789 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:51:32,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:51:36,047 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 12:51:36,048 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:51:36,048 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012404378]
[2024-11-13 12:51:36,049 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012404378] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:51:36,049 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:51:36,050 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 12:51:36,051 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481490664]
[2024-11-13 12:51:36,052 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:51:36,057 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 12:51:36,061 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:51:36,087 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 12:51:36,088 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 12:51:36,100 INFO  L87              Difference]: Start difference. First operand  has 4558 states, 4556 states have (on average 1.4997805092186127) internal successors, (6833), 4557 states have internal predecessors, (6833), 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 135.25) internal successors, (541), 4 states have internal predecessors, (541), 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)
[2024-11-13 12:51:36,575 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:51:36,576 INFO  L93              Difference]: Finished difference Result 8881 states and 13317 transitions.
[2024-11-13 12:51:36,581 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:51:36,582 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 135.25) internal successors, (541), 4 states have internal predecessors, (541), 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 541
[2024-11-13 12:51:36,585 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:51:36,640 INFO  L225             Difference]: With dead ends: 8881
[2024-11-13 12:51:36,641 INFO  L226             Difference]: Without dead ends: 4557
[2024-11-13 12:51:36,658 INFO  L431           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
[2024-11-13 12:51:36,663 INFO  L432           NwaCegarLoop]: 6827 mSDtfsCounter, 0 mSDsluCounter, 13648 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20475 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-13 12:51:36,664 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20475 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 12:51:36,691 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4557 states.
[2024-11-13 12:51:36,892 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4557 to 4557.
[2024-11-13 12:51:36,905 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4557 states, 4556 states have (on average 1.4993415276558384) internal successors, (6831), 4556 states have internal predecessors, (6831), 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)
[2024-11-13 12:51:36,933 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4557 states to 4557 states and 6831 transitions.
[2024-11-13 12:51:36,935 INFO  L78                 Accepts]: Start accepts. Automaton has 4557 states and 6831 transitions. Word has length 541
[2024-11-13 12:51:36,938 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:51:36,940 INFO  L471      AbstractCegarLoop]: Abstraction has 4557 states and 6831 transitions.
[2024-11-13 12:51:36,940 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 135.25) internal successors, (541), 4 states have internal predecessors, (541), 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)
[2024-11-13 12:51:36,941 INFO  L276                IsEmpty]: Start isEmpty. Operand 4557 states and 6831 transitions.
[2024-11-13 12:51:36,957 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 543
[2024-11-13 12:51:36,957 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:51:36,957 INFO  L215           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]
[2024-11-13 12:51:36,959 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-13 12:51:36,959 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:51:36,959 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:51:36,960 INFO  L85        PathProgramCache]: Analyzing trace with hash 1205428934, now seen corresponding path program 1 times
[2024-11-13 12:51:36,960 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:51:36,960 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691508578]
[2024-11-13 12:51:36,960 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:51:36,960 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:51:37,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:51:39,140 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 12:51:39,142 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:51:39,142 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691508578]
[2024-11-13 12:51:39,143 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691508578] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:51:39,143 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:51:39,143 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 12:51:39,143 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146017182]
[2024-11-13 12:51:39,144 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:51:39,146 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 12:51:39,148 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:51:39,150 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 12:51:39,151 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 12:51:39,152 INFO  L87              Difference]: Start difference. First operand 4557 states and 6831 transitions. Second operand  has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 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)
[2024-11-13 12:51:39,742 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:51:39,742 INFO  L93              Difference]: Finished difference Result 8882 states and 13315 transitions.
[2024-11-13 12:51:39,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:51:39,747 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 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 542
[2024-11-13 12:51:39,749 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:51:39,787 INFO  L225             Difference]: With dead ends: 8882
[2024-11-13 12:51:39,787 INFO  L226             Difference]: Without dead ends: 4559
[2024-11-13 12:51:39,796 INFO  L431           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
[2024-11-13 12:51:39,800 INFO  L432           NwaCegarLoop]: 6827 mSDtfsCounter, 0 mSDsluCounter, 13644 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20471 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 12:51:39,801 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20471 Invalid, 15 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 12:51:39,823 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4559 states.
[2024-11-13 12:51:40,004 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4559 to 4559.
[2024-11-13 12:51:40,026 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4559 states, 4558 states have (on average 1.4991224221149626) internal successors, (6833), 4558 states have internal predecessors, (6833), 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)
[2024-11-13 12:51:40,050 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4559 states to 4559 states and 6833 transitions.
[2024-11-13 12:51:40,051 INFO  L78                 Accepts]: Start accepts. Automaton has 4559 states and 6833 transitions. Word has length 542
[2024-11-13 12:51:40,054 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:51:40,054 INFO  L471      AbstractCegarLoop]: Abstraction has 4559 states and 6833 transitions.
[2024-11-13 12:51:40,054 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 135.5) internal successors, (542), 4 states have internal predecessors, (542), 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)
[2024-11-13 12:51:40,055 INFO  L276                IsEmpty]: Start isEmpty. Operand 4559 states and 6833 transitions.
[2024-11-13 12:51:40,075 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 544
[2024-11-13 12:51:40,075 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:51:40,077 INFO  L215           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]
[2024-11-13 12:51:40,077 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-13 12:51:40,077 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:51:40,082 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:51:40,082 INFO  L85        PathProgramCache]: Analyzing trace with hash 1910596128, now seen corresponding path program 1 times
[2024-11-13 12:51:40,082 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:51:40,083 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092969652]
[2024-11-13 12:51:40,083 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:51:40,083 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:51:40,570 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:51:42,121 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 12:51:42,121 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:51:42,121 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092969652]
[2024-11-13 12:51:42,122 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092969652] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:51:42,122 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:51:42,122 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 12:51:42,123 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623732207]
[2024-11-13 12:51:42,123 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:51:42,124 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 12:51:42,124 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:51:42,126 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 12:51:42,126 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 12:51:42,126 INFO  L87              Difference]: Start difference. First operand 4559 states and 6833 transitions. Second operand  has 5 states, 5 states have (on average 108.6) internal successors, (543), 5 states have internal predecessors, (543), 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)
[2024-11-13 12:51:42,654 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:51:42,654 INFO  L93              Difference]: Finished difference Result 13187 states and 19768 transitions.
[2024-11-13 12:51:42,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-13 12:51:42,655 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 108.6) internal successors, (543), 5 states have internal predecessors, (543), 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 543
[2024-11-13 12:51:42,657 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:51:42,690 INFO  L225             Difference]: With dead ends: 13187
[2024-11-13 12:51:42,690 INFO  L226             Difference]: Without dead ends: 8862
[2024-11-13 12:51:42,696 INFO  L431           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
[2024-11-13 12:51:42,697 INFO  L432           NwaCegarLoop]: 6825 mSDtfsCounter, 6266 mSDsluCounter, 20120 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6266 SdHoareTripleChecker+Valid, 26945 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
[2024-11-13 12:51:42,697 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6266 Valid, 26945 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 12:51:42,715 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8862 states.
[2024-11-13 12:51:42,865 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8862 to 5393.
[2024-11-13 12:51:42,883 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5393 states, 5392 states have (on average 1.499072700296736) internal successors, (8083), 5392 states have internal predecessors, (8083), 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)
[2024-11-13 12:51:42,914 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5393 states to 5393 states and 8083 transitions.
[2024-11-13 12:51:42,914 INFO  L78                 Accepts]: Start accepts. Automaton has 5393 states and 8083 transitions. Word has length 543
[2024-11-13 12:51:42,915 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:51:42,915 INFO  L471      AbstractCegarLoop]: Abstraction has 5393 states and 8083 transitions.
[2024-11-13 12:51:42,916 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 108.6) internal successors, (543), 5 states have internal predecessors, (543), 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)
[2024-11-13 12:51:42,917 INFO  L276                IsEmpty]: Start isEmpty. Operand 5393 states and 8083 transitions.
[2024-11-13 12:51:43,162 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2705
[2024-11-13 12:51:43,163 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:51:43,169 INFO  L215           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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[2024-11-13 12:51:43,170 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-13 12:51:43,170 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:51:43,170 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:51:43,174 INFO  L85        PathProgramCache]: Analyzing trace with hash 1223964910, now seen corresponding path program 1 times
[2024-11-13 12:51:43,175 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:51:43,175 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15582275]
[2024-11-13 12:51:43,175 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:51:43,176 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:51:47,642 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:51:58,105 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked.
[2024-11-13 12:51:58,105 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:51:58,105 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15582275]
[2024-11-13 12:51:58,106 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15582275] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:51:58,106 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:51:58,111 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 12:51:58,111 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814350090]
[2024-11-13 12:51:58,111 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:51:58,118 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 12:51:58,118 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:51:58,200 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 12:51:58,204 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 12:51:58,205 INFO  L87              Difference]: Start difference. First operand 5393 states and 8083 transitions. Second operand  has 5 states, 5 states have (on average 457.8) internal successors, (2289), 5 states have internal predecessors, (2289), 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)
[2024-11-13 12:51:58,830 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:51:58,833 INFO  L93              Difference]: Finished difference Result 9722 states and 14571 transitions.
[2024-11-13 12:51:58,833 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:51:58,835 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 457.8) internal successors, (2289), 5 states have internal predecessors, (2289), 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 2704
[2024-11-13 12:51:58,844 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:51:58,882 INFO  L225             Difference]: With dead ends: 9722
[2024-11-13 12:51:58,883 INFO  L226             Difference]: Without dead ends: 5397
[2024-11-13 12:51:58,897 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 12:51:58,902 INFO  L432           NwaCegarLoop]: 6827 mSDtfsCounter, 0 mSDsluCounter, 20465 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27292 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 12:51:58,902 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27292 Invalid, 24 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 12:51:58,930 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5397 states.
[2024-11-13 12:51:59,259 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5397 to 5393.
[2024-11-13 12:51:59,278 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5393 states, 5392 states have (on average 1.499072700296736) internal successors, (8083), 5392 states have internal predecessors, (8083), 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)
[2024-11-13 12:51:59,315 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5393 states to 5393 states and 8083 transitions.
[2024-11-13 12:51:59,316 INFO  L78                 Accepts]: Start accepts. Automaton has 5393 states and 8083 transitions. Word has length 2704
[2024-11-13 12:51:59,325 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:51:59,325 INFO  L471      AbstractCegarLoop]: Abstraction has 5393 states and 8083 transitions.
[2024-11-13 12:51:59,326 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 457.8) internal successors, (2289), 5 states have internal predecessors, (2289), 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)
[2024-11-13 12:51:59,327 INFO  L276                IsEmpty]: Start isEmpty. Operand 5393 states and 8083 transitions.
[2024-11-13 12:51:59,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2706
[2024-11-13 12:51:59,583 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:51:59,585 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 12:51:59,590 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-13 12:51:59,590 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:51:59,591 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:51:59,592 INFO  L85        PathProgramCache]: Analyzing trace with hash 197096831, now seen corresponding path program 1 times
[2024-11-13 12:51:59,593 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:51:59,593 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073709173]
[2024-11-13 12:51:59,598 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:51:59,598 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:52:03,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:52:10,928 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked.
[2024-11-13 12:52:10,928 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:52:10,928 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073709173]
[2024-11-13 12:52:10,928 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073709173] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:52:10,929 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:52:10,929 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 12:52:10,929 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958626471]
[2024-11-13 12:52:10,929 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:52:10,932 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 12:52:10,932 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:52:10,936 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 12:52:10,936 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 12:52:10,937 INFO  L87              Difference]: Start difference. First operand 5393 states and 8083 transitions. Second operand  has 5 states, 5 states have (on average 458.4) internal successors, (2292), 5 states have internal predecessors, (2292), 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)
[2024-11-13 12:52:11,146 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:52:11,146 INFO  L93              Difference]: Finished difference Result 9726 states and 14577 transitions.
[2024-11-13 12:52:11,146 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:52:11,148 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 458.4) internal successors, (2292), 5 states have internal predecessors, (2292), 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 2705
[2024-11-13 12:52:11,153 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:52:11,185 INFO  L225             Difference]: With dead ends: 9726
[2024-11-13 12:52:11,186 INFO  L226             Difference]: Without dead ends: 5397
[2024-11-13 12:52:11,194 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 12:52:11,196 INFO  L432           NwaCegarLoop]: 6827 mSDtfsCounter, 0 mSDsluCounter, 20465 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27292 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 12:52:11,198 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27292 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 12:52:11,207 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5397 states.
[2024-11-13 12:52:11,309 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5397 to 5395.
[2024-11-13 12:52:11,317 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5395 states, 5394 states have (on average 1.4988876529477198) internal successors, (8085), 5394 states have internal predecessors, (8085), 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)
[2024-11-13 12:52:11,335 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5395 states to 5395 states and 8085 transitions.
[2024-11-13 12:52:11,335 INFO  L78                 Accepts]: Start accepts. Automaton has 5395 states and 8085 transitions. Word has length 2705
[2024-11-13 12:52:11,339 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:52:11,339 INFO  L471      AbstractCegarLoop]: Abstraction has 5395 states and 8085 transitions.
[2024-11-13 12:52:11,340 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 458.4) internal successors, (2292), 5 states have internal predecessors, (2292), 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)
[2024-11-13 12:52:11,341 INFO  L276                IsEmpty]: Start isEmpty. Operand 5395 states and 8085 transitions.
[2024-11-13 12:52:11,507 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2707
[2024-11-13 12:52:11,507 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:52:11,509 INFO  L215           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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[2024-11-13 12:52:11,509 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-13 12:52:11,509 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:52:11,510 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:52:11,511 INFO  L85        PathProgramCache]: Analyzing trace with hash -1365736153, now seen corresponding path program 1 times
[2024-11-13 12:52:11,511 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:52:11,512 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232129417]
[2024-11-13 12:52:11,512 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:52:11,513 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:52:15,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:52:21,577 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked.
[2024-11-13 12:52:21,577 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:52:21,577 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232129417]
[2024-11-13 12:52:21,578 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232129417] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:52:21,578 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:52:21,578 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 12:52:21,578 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194144586]
[2024-11-13 12:52:21,579 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:52:21,581 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 12:52:21,581 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:52:21,583 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 12:52:21,584 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 12:52:21,585 INFO  L87              Difference]: Start difference. First operand 5395 states and 8085 transitions. Second operand  has 5 states, 5 states have (on average 459.0) internal successors, (2295), 5 states have internal predecessors, (2295), 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)
[2024-11-13 12:52:21,761 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:52:21,761 INFO  L93              Difference]: Finished difference Result 9734 states and 14587 transitions.
[2024-11-13 12:52:21,762 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:52:21,763 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 459.0) internal successors, (2295), 5 states have internal predecessors, (2295), 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 2706
[2024-11-13 12:52:21,768 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:52:21,786 INFO  L225             Difference]: With dead ends: 9734
[2024-11-13 12:52:21,787 INFO  L226             Difference]: Without dead ends: 5399
[2024-11-13 12:52:21,793 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 12:52:21,796 INFO  L432           NwaCegarLoop]: 6827 mSDtfsCounter, 0 mSDsluCounter, 20465 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27292 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 12:52:21,798 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27292 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 12:52:21,810 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5399 states.
[2024-11-13 12:52:21,918 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5399 to 5397.
[2024-11-13 12:52:21,927 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5397 states, 5396 states have (on average 1.498702742772424) internal successors, (8087), 5396 states have internal predecessors, (8087), 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)
[2024-11-13 12:52:21,936 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5397 states to 5397 states and 8087 transitions.
[2024-11-13 12:52:21,936 INFO  L78                 Accepts]: Start accepts. Automaton has 5397 states and 8087 transitions. Word has length 2706
[2024-11-13 12:52:21,941 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:52:21,942 INFO  L471      AbstractCegarLoop]: Abstraction has 5397 states and 8087 transitions.
[2024-11-13 12:52:21,943 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 459.0) internal successors, (2295), 5 states have internal predecessors, (2295), 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)
[2024-11-13 12:52:21,943 INFO  L276                IsEmpty]: Start isEmpty. Operand 5397 states and 8087 transitions.
[2024-11-13 12:52:22,006 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2708
[2024-11-13 12:52:22,006 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:52:22,008 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 12:52:22,008 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-13 12:52:22,009 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:52:22,009 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:52:22,010 INFO  L85        PathProgramCache]: Analyzing trace with hash 1975373254, now seen corresponding path program 1 times
[2024-11-13 12:52:22,011 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:52:22,011 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490194156]
[2024-11-13 12:52:22,012 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:52:22,012 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:52:25,537 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:52:30,942 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked.
[2024-11-13 12:52:30,943 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:52:30,943 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490194156]
[2024-11-13 12:52:30,943 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490194156] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:52:30,943 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:52:30,944 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 12:52:30,944 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675409606]
[2024-11-13 12:52:30,944 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:52:30,946 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 12:52:30,947 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:52:30,950 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 12:52:30,950 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 12:52:30,952 INFO  L87              Difference]: Start difference. First operand 5397 states and 8087 transitions. Second operand  has 4 states, 4 states have (on average 574.5) internal successors, (2298), 4 states have internal predecessors, (2298), 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)
[2024-11-13 12:52:31,083 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:52:31,083 INFO  L93              Difference]: Finished difference Result 9742 states and 14597 transitions.
[2024-11-13 12:52:31,084 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:52:31,085 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 574.5) internal successors, (2298), 4 states have internal predecessors, (2298), 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 2707
[2024-11-13 12:52:31,090 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:52:31,102 INFO  L225             Difference]: With dead ends: 9742
[2024-11-13 12:52:31,102 INFO  L226             Difference]: Without dead ends: 5401
[2024-11-13 12:52:31,108 INFO  L431           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
[2024-11-13 12:52:31,109 INFO  L432           NwaCegarLoop]: 6827 mSDtfsCounter, 0 mSDsluCounter, 13644 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20471 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-13 12:52:31,109 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20471 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 12:52:31,125 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5401 states.
[2024-11-13 12:52:31,197 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 5399.
[2024-11-13 12:52:31,205 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5399 states, 5398 states have (on average 1.4985179696183772) internal successors, (8089), 5398 states have internal predecessors, (8089), 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)
[2024-11-13 12:52:31,213 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5399 states to 5399 states and 8089 transitions.
[2024-11-13 12:52:31,213 INFO  L78                 Accepts]: Start accepts. Automaton has 5399 states and 8089 transitions. Word has length 2707
[2024-11-13 12:52:31,217 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:52:31,217 INFO  L471      AbstractCegarLoop]: Abstraction has 5399 states and 8089 transitions.
[2024-11-13 12:52:31,218 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 574.5) internal successors, (2298), 4 states have internal predecessors, (2298), 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)
[2024-11-13 12:52:31,218 INFO  L276                IsEmpty]: Start isEmpty. Operand 5399 states and 8089 transitions.
[2024-11-13 12:52:31,275 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2709
[2024-11-13 12:52:31,275 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:52:31,277 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 12:52:31,277 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-13 12:52:31,277 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:52:31,277 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:52:31,279 INFO  L85        PathProgramCache]: Analyzing trace with hash -200893344, now seen corresponding path program 1 times
[2024-11-13 12:52:31,279 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:52:31,279 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377275193]
[2024-11-13 12:52:31,280 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:52:31,280 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:52:33,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:52:39,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 422 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 408 trivial. 0 not checked.
[2024-11-13 12:52:39,380 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:52:39,380 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377275193]
[2024-11-13 12:52:39,380 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377275193] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:52:39,380 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:52:39,380 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 12:52:39,380 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335277866]
[2024-11-13 12:52:39,381 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:52:39,383 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 12:52:39,383 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:52:39,385 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 12:52:39,386 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 12:52:39,387 INFO  L87              Difference]: Start difference. First operand 5399 states and 8089 transitions. Second operand  has 4 states, 4 states have (on average 575.25) internal successors, (2301), 4 states have internal predecessors, (2301), 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)
[2024-11-13 12:52:39,527 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:52:39,527 INFO  L93              Difference]: Finished difference Result 9750 states and 14607 transitions.
[2024-11-13 12:52:39,528 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:52:39,529 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 575.25) internal successors, (2301), 4 states have internal predecessors, (2301), 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 2708
[2024-11-13 12:52:39,532 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:52:39,542 INFO  L225             Difference]: With dead ends: 9750
[2024-11-13 12:52:39,542 INFO  L226             Difference]: Without dead ends: 5403
[2024-11-13 12:52:39,546 INFO  L431           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
[2024-11-13 12:52:39,548 INFO  L432           NwaCegarLoop]: 6827 mSDtfsCounter, 0 mSDsluCounter, 13644 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20471 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-13 12:52:39,548 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20471 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 12:52:39,556 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5403 states.
[2024-11-13 12:52:39,626 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5403 to 5401.
[2024-11-13 12:52:39,634 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5401 states, 5400 states have (on average 1.4983333333333333) internal successors, (8091), 5400 states have internal predecessors, (8091), 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)
[2024-11-13 12:52:39,643 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 8091 transitions.
[2024-11-13 12:52:39,643 INFO  L78                 Accepts]: Start accepts. Automaton has 5401 states and 8091 transitions. Word has length 2708
[2024-11-13 12:52:39,646 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:52:39,646 INFO  L471      AbstractCegarLoop]: Abstraction has 5401 states and 8091 transitions.
[2024-11-13 12:52:39,647 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 575.25) internal successors, (2301), 4 states have internal predecessors, (2301), 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)
[2024-11-13 12:52:39,647 INFO  L276                IsEmpty]: Start isEmpty. Operand 5401 states and 8091 transitions.
[2024-11-13 12:52:39,711 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2710
[2024-11-13 12:52:39,711 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:52:39,713 INFO  L215           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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[2024-11-13 12:52:39,713 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-13 12:52:39,713 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:52:39,713 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:52:39,715 INFO  L85        PathProgramCache]: Analyzing trace with hash 1836593933, now seen corresponding path program 1 times
[2024-11-13 12:52:39,715 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:52:39,715 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908920981]
[2024-11-13 12:52:39,716 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:52:39,716 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:53:11,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat