./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop3-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop3-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ed419cfde3f00c4e881dce3bd1ed7d811204a89d89673a381df3dbc162643a28
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 08:40:34,127 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-12-02 08:40:34,179 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-02 08:40:34,184 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 08:40:34,184 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 08:40:34,205 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 08:40:34,206 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 08:40:34,206 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 08:40:34,206 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 08:40:34,206 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-12-02 08:40:34,206 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 08:40:34,207 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 08:40:34,207 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 08:40:34,207 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-12-02 08:40:34,207 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-12-02 08:40:34,207 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 08:40:34,207 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-12-02 08:40:34,207 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-12-02 08:40:34,207 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-12-02 08:40:34,208 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 08:40:34,208 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 08:40:34,208 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 08:40:34,208 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-12-02 08:40:34,208 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 08:40:34,208 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-12-02 08:40:34,208 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 08:40:34,208 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 08:40:34,208 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:40:34,208 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 08:40:34,208 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:40:34,208 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:40:34,209 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 08:40:34,209 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 08:40:34,210 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 08:40:34,210 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_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed419cfde3f00c4e881dce3bd1ed7d811204a89d89673a381df3dbc162643a28
[2024-12-02 08:40:34,416 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 08:40:34,423 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 08:40:34,425 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 08:40:34,426 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-12-02 08:40:34,426 INFO  L274        PluginConnector]: CDTParser initialized
[2024-12-02 08:40:34,427 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop3-back-serstep.c
[2024-12-02 08:40:37,059 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/data/bc3dcdbe2/c46a898180194522800a59cdd0b26f0f/FLAG8a9c83860
[2024-12-02 08:40:37,402 INFO  L384              CDTParser]: Found 1 translation units.
[2024-12-02 08:40:37,402 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop3-back-serstep.c
[2024-12-02 08:40:37,424 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/data/bc3dcdbe2/c46a898180194522800a59cdd0b26f0f/FLAG8a9c83860
[2024-12-02 08:40:37,438 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/data/bc3dcdbe2/c46a898180194522800a59cdd0b26f0f
[2024-12-02 08:40:37,440 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 08:40:37,442 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 08:40:37,443 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 08:40:37,443 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 08:40:37,448 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 08:40:37,448 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:40:37" (1/1) ...
[2024-12-02 08:40:37,449 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9f983d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:37, skipping insertion in model container
[2024-12-02 08:40:37,449 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:40:37" (1/1) ...
[2024-12-02 08:40:37,534 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-12-02 08:40:37,726 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_f2595492-4ba1-48da-8ba2-1a1919b37165/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop3-back-serstep.c[1175,1188]
[2024-12-02 08:40:38,360 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:40:38,370 INFO  L200         MainTranslator]: Completed pre-run
[2024-12-02 08:40:38,381 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_f2595492-4ba1-48da-8ba2-1a1919b37165/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop3-back-serstep.c[1175,1188]
[2024-12-02 08:40:38,798 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:40:38,812 INFO  L204         MainTranslator]: Completed translation
[2024-12-02 08:40:38,813 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38 WrapperNode
[2024-12-02 08:40:38,813 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 08:40:38,814 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 08:40:38,814 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 08:40:38,814 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 08:40:38,821 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:38,974 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:40,201 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21657
[2024-12-02 08:40:40,201 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 08:40:40,202 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 08:40:40,202 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 08:40:40,202 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 08:40:40,210 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:40,211 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:40,667 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:40,941 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-02 08:40:40,941 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:40,942 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:41,219 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:41,255 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:41,312 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:41,375 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:41,417 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:41,634 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 08:40:41,634 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 08:40:41,635 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 08:40:41,635 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-12-02 08:40:41,636 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (1/1) ...
[2024-12-02 08:40:41,642 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:40:41,656 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:40:41,667 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 08:40:41,669 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2595492-4ba1-48da-8ba2-1a1919b37165/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 08:40:41,689 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 08:40:41,689 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 08:40:41,689 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 08:40:41,689 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 08:40:42,732 INFO  L234             CfgBuilder]: Building ICFG
[2024-12-02 08:40:42,733 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 08:41:43,619 INFO  L?                        ?]: Removed 11503 outVars from TransFormulas that were not future-live.
[2024-12-02 08:41:43,619 INFO  L283             CfgBuilder]: Performing block encoding
[2024-12-02 08:41:43,700 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 08:41:43,700 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 08:41:43,700 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:41:43 BoogieIcfgContainer
[2024-12-02 08:41:43,700 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 08:41:43,702 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 08:41:43,702 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 08:41:43,706 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-12-02 08:41:43,706 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:40:37" (1/3) ...
[2024-12-02 08:41:43,707 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9b61d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:41:43, skipping insertion in model container
[2024-12-02 08:41:43,707 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:40:38" (2/3) ...
[2024-12-02 08:41:43,707 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c9b61d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:41:43, skipping insertion in model container
[2024-12-02 08:41:43,707 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:41:43" (3/3) ...
[2024-12-02 08:41:43,708 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.needham.3.prop3-back-serstep.c
[2024-12-02 08:41:43,720 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 08:41:43,721 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.needham.3.prop3-back-serstep.c that has 1 procedures, 7773 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 08:41:43,860 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 08:41:43,869 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;@69e4c3e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 08:41:43,870 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 08:41:43,886 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7773 states, 7771 states have (on average 1.5037961652297003) internal successors, (11686), 7772 states have internal predecessors, (11686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:41:43,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 612
[2024-12-02 08:41:43,920 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:41:43,920 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:41:43,921 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:41:43,925 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:41:43,925 INFO  L85        PathProgramCache]: Analyzing trace with hash 417474391, now seen corresponding path program 1 times
[2024-12-02 08:41:43,931 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:41:43,931 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093820342]
[2024-12-02 08:41:43,932 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:41:43,932 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:41:44,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:41:46,782 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:41:46,783 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:41:46,783 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093820342]
[2024-12-02 08:41:46,785 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093820342] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:41:46,785 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:41:46,785 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:41:46,787 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703203812]
[2024-12-02 08:41:46,788 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:41:46,794 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:41:46,795 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:41:46,817 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:41:46,818 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:41:46,832 INFO  L87              Difference]: Start difference. First operand  has 7773 states, 7771 states have (on average 1.5037961652297003) internal successors, (11686), 7772 states have internal predecessors, (11686), 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 152.75) internal successors, (611), 4 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:41:47,348 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:41:47,348 INFO  L93              Difference]: Finished difference Result 15303 states and 23011 transitions.
[2024-12-02 08:41:47,349 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:41:47,351 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 152.75) internal successors, (611), 4 states have internal predecessors, (611), 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 611
[2024-12-02 08:41:47,356 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:41:47,408 INFO  L225             Difference]: With dead ends: 15303
[2024-12-02 08:41:47,408 INFO  L226             Difference]: Without dead ends: 7772
[2024-12-02 08:41:47,426 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:41:47,429 INFO  L435           NwaCegarLoop]: 11680 mSDtfsCounter, 0 mSDsluCounter, 23354 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35034 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:41:47,430 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35034 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:41:47,452 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7772 states.
[2024-12-02 08:41:47,630 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7772 to 7772.
[2024-12-02 08:41:47,644 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7772 states, 7771 states have (on average 1.5035387980954833) internal successors, (11684), 7771 states have internal predecessors, (11684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:41:47,680 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7772 states to 7772 states and 11684 transitions.
[2024-12-02 08:41:47,682 INFO  L78                 Accepts]: Start accepts. Automaton has 7772 states and 11684 transitions. Word has length 611
[2024-12-02 08:41:47,684 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:41:47,684 INFO  L471      AbstractCegarLoop]: Abstraction has 7772 states and 11684 transitions.
[2024-12-02 08:41:47,685 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 152.75) internal successors, (611), 4 states have internal predecessors, (611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:41:47,685 INFO  L276                IsEmpty]: Start isEmpty. Operand 7772 states and 11684 transitions.
[2024-12-02 08:41:47,704 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 613
[2024-12-02 08:41:47,705 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:41:47,705 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:41:47,705 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 08:41:47,706 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:41:47,707 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:41:47,708 INFO  L85        PathProgramCache]: Analyzing trace with hash 58503325, now seen corresponding path program 1 times
[2024-12-02 08:41:47,708 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:41:47,708 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473958254]
[2024-12-02 08:41:47,708 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:41:47,708 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:41:48,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:41:49,145 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:41:49,145 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:41:49,146 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473958254]
[2024-12-02 08:41:49,146 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473958254] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:41:49,146 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:41:49,146 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:41:49,146 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441002807]
[2024-12-02 08:41:49,146 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:41:49,148 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:41:49,148 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:41:49,149 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:41:49,149 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:41:49,149 INFO  L87              Difference]: Start difference. First operand 7772 states and 11684 transitions. Second operand  has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:41:49,407 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:41:49,407 INFO  L93              Difference]: Finished difference Result 15304 states and 23009 transitions.
[2024-12-02 08:41:49,408 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:41:49,408 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 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 612
[2024-12-02 08:41:49,409 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:41:49,434 INFO  L225             Difference]: With dead ends: 15304
[2024-12-02 08:41:49,435 INFO  L226             Difference]: Without dead ends: 7774
[2024-12-02 08:41:49,443 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:41:49,444 INFO  L435           NwaCegarLoop]: 11680 mSDtfsCounter, 0 mSDsluCounter, 23350 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35030 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:41:49,444 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35030 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:41:49,456 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7774 states.
[2024-12-02 08:41:49,566 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7774 to 7774.
[2024-12-02 08:41:49,577 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7774 states, 7773 states have (on average 1.5034092371027916) internal successors, (11686), 7773 states have internal predecessors, (11686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:41:49,601 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7774 states to 7774 states and 11686 transitions.
[2024-12-02 08:41:49,601 INFO  L78                 Accepts]: Start accepts. Automaton has 7774 states and 11686 transitions. Word has length 612
[2024-12-02 08:41:49,602 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:41:49,602 INFO  L471      AbstractCegarLoop]: Abstraction has 7774 states and 11686 transitions.
[2024-12-02 08:41:49,603 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 153.0) internal successors, (612), 4 states have internal predecessors, (612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:41:49,603 INFO  L276                IsEmpty]: Start isEmpty. Operand 7774 states and 11686 transitions.
[2024-12-02 08:41:49,608 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 614
[2024-12-02 08:41:49,608 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:41:49,609 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:41:49,609 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 08:41:49,609 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:41:49,610 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:41:49,610 INFO  L85        PathProgramCache]: Analyzing trace with hash 715641072, now seen corresponding path program 1 times
[2024-12-02 08:41:49,610 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:41:49,611 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409250155]
[2024-12-02 08:41:49,611 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:41:49,611 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:41:49,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:41:50,922 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:41:50,923 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:41:50,923 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409250155]
[2024-12-02 08:41:50,923 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409250155] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:41:50,923 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:41:50,923 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:41:50,923 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211188979]
[2024-12-02 08:41:50,923 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:41:50,924 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:41:50,924 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:41:50,925 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:41:50,925 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:41:50,926 INFO  L87              Difference]: Start difference. First operand 7774 states and 11686 transitions. Second operand  has 5 states, 5 states have (on average 122.6) internal successors, (613), 5 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:41:51,257 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:41:51,258 INFO  L93              Difference]: Finished difference Result 22824 states and 34315 transitions.
[2024-12-02 08:41:51,258 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 08:41:51,258 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 122.6) internal successors, (613), 5 states have internal predecessors, (613), 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 613
[2024-12-02 08:41:51,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:41:51,305 INFO  L225             Difference]: With dead ends: 22824
[2024-12-02 08:41:51,306 INFO  L226             Difference]: Without dead ends: 15292
[2024-12-02 08:41:51,316 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 08:41:51,317 INFO  L435           NwaCegarLoop]: 11678 mSDtfsCounter, 11061 mSDsluCounter, 34667 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11061 SdHoareTripleChecker+Valid, 46345 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
[2024-12-02 08:41:51,317 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11061 Valid, 46345 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 08:41:51,336 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15292 states.
[2024-12-02 08:41:51,485 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15292 to 8740.
[2024-12-02 08:41:51,496 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8740 states, 8739 states have (on average 1.5029179539993134) internal successors, (13134), 8739 states have internal predecessors, (13134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:41:51,507 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8740 states to 8740 states and 13134 transitions.
[2024-12-02 08:41:51,508 INFO  L78                 Accepts]: Start accepts. Automaton has 8740 states and 13134 transitions. Word has length 613
[2024-12-02 08:41:51,509 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:41:51,509 INFO  L471      AbstractCegarLoop]: Abstraction has 8740 states and 13134 transitions.
[2024-12-02 08:41:51,509 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 122.6) internal successors, (613), 5 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:41:51,509 INFO  L276                IsEmpty]: Start isEmpty. Operand 8740 states and 13134 transitions.
[2024-12-02 08:41:51,613 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4261
[2024-12-02 08:41:51,613 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:41:51,615 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:41:51,615 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 08:41:51,615 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:41:51,616 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:41:51,617 INFO  L85        PathProgramCache]: Analyzing trace with hash 842107037, now seen corresponding path program 1 times
[2024-12-02 08:41:51,617 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:41:51,617 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751780205]
[2024-12-02 08:41:51,618 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:41:51,618 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:41:57,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:42:05,405 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:42:05,406 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:42:05,406 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751780205]
[2024-12-02 08:42:05,406 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751780205] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:42:05,406 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:42:05,406 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 08:42:05,407 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230990528]
[2024-12-02 08:42:05,407 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:42:05,410 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 08:42:05,411 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:42:05,414 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 08:42:05,414 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 08:42:05,415 INFO  L87              Difference]: Start difference. First operand 8740 states and 13134 transitions. Second operand  has 3 states, 3 states have (on average 1420.0) internal successors, (4260), 3 states have internal predecessors, (4260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:05,541 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:42:05,541 INFO  L93              Difference]: Finished difference Result 16273 states and 24460 transitions.
[2024-12-02 08:42:05,542 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 08:42:05,543 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1420.0) internal successors, (4260), 3 states have internal predecessors, (4260), 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 4260
[2024-12-02 08:42:05,545 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:42:05,563 INFO  L225             Difference]: With dead ends: 16273
[2024-12-02 08:42:05,563 INFO  L226             Difference]: Without dead ends: 8741
[2024-12-02 08:42:05,573 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 08:42:05,575 INFO  L435           NwaCegarLoop]: 11681 mSDtfsCounter, 0 mSDsluCounter, 11675 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23356 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:42:05,579 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23356 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:42:05,591 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8741 states.
[2024-12-02 08:42:05,731 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8741 to 8741.
[2024-12-02 08:42:05,743 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8741 states, 8740 states have (on average 1.5028604118993134) internal successors, (13135), 8740 states have internal predecessors, (13135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:05,755 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8741 states to 8741 states and 13135 transitions.
[2024-12-02 08:42:05,756 INFO  L78                 Accepts]: Start accepts. Automaton has 8741 states and 13135 transitions. Word has length 4260
[2024-12-02 08:42:05,758 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:42:05,759 INFO  L471      AbstractCegarLoop]: Abstraction has 8741 states and 13135 transitions.
[2024-12-02 08:42:05,760 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1420.0) internal successors, (4260), 3 states have internal predecessors, (4260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:05,760 INFO  L276                IsEmpty]: Start isEmpty. Operand 8741 states and 13135 transitions.
[2024-12-02 08:42:05,892 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4261
[2024-12-02 08:42:05,892 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:42:05,894 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 08:42:05,895 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 08:42:05,895 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:42:05,897 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:42:05,899 INFO  L85        PathProgramCache]: Analyzing trace with hash 1497773518, now seen corresponding path program 1 times
[2024-12-02 08:42:05,899 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:42:05,900 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226577607]
[2024-12-02 08:42:05,901 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:42:05,901 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:42:09,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:42:17,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:42:17,521 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:42:17,522 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226577607]
[2024-12-02 08:42:17,522 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226577607] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:42:17,522 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:42:17,522 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 08:42:17,522 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90643427]
[2024-12-02 08:42:17,522 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:42:17,525 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 08:42:17,525 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:42:17,528 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 08:42:17,528 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 08:42:17,530 INFO  L87              Difference]: Start difference. First operand 8741 states and 13135 transitions. Second operand  has 3 states, 3 states have (on average 1420.0) internal successors, (4260), 3 states have internal predecessors, (4260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:17,688 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:42:17,688 INFO  L93              Difference]: Finished difference Result 16275 states and 24462 transitions.
[2024-12-02 08:42:17,688 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 08:42:17,690 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1420.0) internal successors, (4260), 3 states have internal predecessors, (4260), 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 4260
[2024-12-02 08:42:17,692 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:42:17,710 INFO  L225             Difference]: With dead ends: 16275
[2024-12-02 08:42:17,710 INFO  L226             Difference]: Without dead ends: 8742
[2024-12-02 08:42:17,718 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 08:42:17,718 INFO  L435           NwaCegarLoop]: 11681 mSDtfsCounter, 0 mSDsluCounter, 11675 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23356 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:42:17,719 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23356 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:42:17,732 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8742 states.
[2024-12-02 08:42:17,855 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8742 to 8742.
[2024-12-02 08:42:17,867 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8742 states, 8741 states have (on average 1.5028028829653357) internal successors, (13136), 8741 states have internal predecessors, (13136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:17,883 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8742 states to 8742 states and 13136 transitions.
[2024-12-02 08:42:17,884 INFO  L78                 Accepts]: Start accepts. Automaton has 8742 states and 13136 transitions. Word has length 4260
[2024-12-02 08:42:17,886 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:42:17,887 INFO  L471      AbstractCegarLoop]: Abstraction has 8742 states and 13136 transitions.
[2024-12-02 08:42:17,888 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1420.0) internal successors, (4260), 3 states have internal predecessors, (4260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:17,888 INFO  L276                IsEmpty]: Start isEmpty. Operand 8742 states and 13136 transitions.
[2024-12-02 08:42:18,152 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4261
[2024-12-02 08:42:18,152 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:42:18,154 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:42:18,154 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 08:42:18,154 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:42:18,156 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:42:18,158 INFO  L85        PathProgramCache]: Analyzing trace with hash -1653280321, now seen corresponding path program 1 times
[2024-12-02 08:42:18,158 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:42:18,158 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539601903]
[2024-12-02 08:42:18,158 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:42:18,158 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:42:21,160 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:42:30,002 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked.
[2024-12-02 08:42:30,003 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:42:30,003 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539601903]
[2024-12-02 08:42:30,003 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539601903] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:42:30,003 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:42:30,004 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:42:30,004 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413228034]
[2024-12-02 08:42:30,004 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:42:30,007 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:42:30,007 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:42:30,010 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:42:30,010 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:42:30,011 INFO  L87              Difference]: Start difference. First operand 8742 states and 13136 transitions. Second operand  has 5 states, 5 states have (on average 755.8) internal successors, (3779), 5 states have internal predecessors, (3779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:30,148 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:42:30,148 INFO  L93              Difference]: Finished difference Result 16280 states and 24467 transitions.
[2024-12-02 08:42:30,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:42:30,149 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 755.8) internal successors, (3779), 5 states have internal predecessors, (3779), 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 4260
[2024-12-02 08:42:30,153 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:42:30,164 INFO  L225             Difference]: With dead ends: 16280
[2024-12-02 08:42:30,164 INFO  L226             Difference]: Without dead ends: 8746
[2024-12-02 08:42:30,169 INFO  L434           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
[2024-12-02 08:42:30,170 INFO  L435           NwaCegarLoop]: 11680 mSDtfsCounter, 0 mSDsluCounter, 23350 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35030 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 08:42:30,170 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35030 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:42:30,178 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8746 states.
[2024-12-02 08:42:30,253 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8746 to 8742.
[2024-12-02 08:42:30,260 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8742 states, 8741 states have (on average 1.5028028829653357) internal successors, (13136), 8741 states have internal predecessors, (13136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:30,273 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8742 states to 8742 states and 13136 transitions.
[2024-12-02 08:42:30,273 INFO  L78                 Accepts]: Start accepts. Automaton has 8742 states and 13136 transitions. Word has length 4260
[2024-12-02 08:42:30,276 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:42:30,276 INFO  L471      AbstractCegarLoop]: Abstraction has 8742 states and 13136 transitions.
[2024-12-02 08:42:30,276 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 755.8) internal successors, (3779), 5 states have internal predecessors, (3779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:30,277 INFO  L276                IsEmpty]: Start isEmpty. Operand 8742 states and 13136 transitions.
[2024-12-02 08:42:30,349 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4262
[2024-12-02 08:42:30,349 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:42:30,350 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:42:30,350 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 08:42:30,350 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:42:30,351 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:42:30,352 INFO  L85        PathProgramCache]: Analyzing trace with hash 1196808341, now seen corresponding path program 1 times
[2024-12-02 08:42:30,353 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:42:30,353 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79816877]
[2024-12-02 08:42:30,354 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:42:30,354 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:42:33,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:42:44,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:42:44,022 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:42:44,022 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79816877]
[2024-12-02 08:42:44,022 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79816877] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:42:44,023 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:42:44,023 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:42:44,023 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482321226]
[2024-12-02 08:42:44,023 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:42:44,028 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:42:44,028 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:42:44,032 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:42:44,033 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:42:44,034 INFO  L87              Difference]: Start difference. First operand 8742 states and 13136 transitions. Second operand  has 4 states, 4 states have (on average 1065.25) internal successors, (4261), 4 states have internal predecessors, (4261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:45,284 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:42:45,285 INFO  L93              Difference]: Finished difference Result 16217 states and 24403 transitions.
[2024-12-02 08:42:45,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:42:45,286 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1065.25) internal successors, (4261), 4 states have internal predecessors, (4261), 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 4261
[2024-12-02 08:42:45,291 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:42:45,308 INFO  L225             Difference]: With dead ends: 16217
[2024-12-02 08:42:45,309 INFO  L226             Difference]: Without dead ends: 8681
[2024-12-02 08:42:45,316 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:42:45,316 INFO  L435           NwaCegarLoop]: 10940 mSDtfsCounter, 8011 mSDsluCounter, 10937 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8011 SdHoareTripleChecker+Valid, 21877 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:42:45,317 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [8011 Valid, 21877 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1229 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-12-02 08:42:45,330 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8681 states.
[2024-12-02 08:42:45,452 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8681 to 8681.
[2024-12-02 08:42:45,462 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8681 states, 8680 states have (on average 1.4990783410138249) internal successors, (13012), 8680 states have internal predecessors, (13012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:45,479 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8681 states to 8681 states and 13012 transitions.
[2024-12-02 08:42:45,479 INFO  L78                 Accepts]: Start accepts. Automaton has 8681 states and 13012 transitions. Word has length 4261
[2024-12-02 08:42:45,483 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:42:45,483 INFO  L471      AbstractCegarLoop]: Abstraction has 8681 states and 13012 transitions.
[2024-12-02 08:42:45,484 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1065.25) internal successors, (4261), 4 states have internal predecessors, (4261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:45,485 INFO  L276                IsEmpty]: Start isEmpty. Operand 8681 states and 13012 transitions.
[2024-12-02 08:42:45,593 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4263
[2024-12-02 08:42:45,593 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:42:45,595 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 08:42:45,595 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 08:42:45,595 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:42:45,596 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:42:45,598 INFO  L85        PathProgramCache]: Analyzing trace with hash 133618382, now seen corresponding path program 1 times
[2024-12-02 08:42:45,598 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:42:45,598 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873687157]
[2024-12-02 08:42:45,598 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:42:45,599 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:42:49,190 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:42:56,799 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:42:56,799 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:42:56,799 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873687157]
[2024-12-02 08:42:56,799 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873687157] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:42:56,799 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:42:56,800 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:42:56,800 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025432819]
[2024-12-02 08:42:56,800 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:42:56,802 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:42:56,802 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:42:56,804 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:42:56,804 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:42:56,805 INFO  L87              Difference]: Start difference. First operand 8681 states and 13012 transitions. Second operand  has 4 states, 4 states have (on average 1065.5) internal successors, (4262), 4 states have internal predecessors, (4262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:57,398 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:42:57,398 INFO  L93              Difference]: Finished difference Result 16159 states and 24220 transitions.
[2024-12-02 08:42:57,399 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:42:57,400 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1065.5) internal successors, (4262), 4 states have internal predecessors, (4262), 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 4262
[2024-12-02 08:42:57,402 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:42:57,408 INFO  L225             Difference]: With dead ends: 16159
[2024-12-02 08:42:57,408 INFO  L226             Difference]: Without dead ends: 8681
[2024-12-02 08:42:57,413 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:42:57,413 INFO  L435           NwaCegarLoop]: 11188 mSDtfsCounter, 8005 mSDsluCounter, 11180 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8005 SdHoareTripleChecker+Valid, 22368 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 08:42:57,413 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [8005 Valid, 22368 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 08:42:57,420 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8681 states.
[2024-12-02 08:42:57,577 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8681 to 8681.
[2024-12-02 08:42:57,584 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8681 states, 8680 states have (on average 1.498963133640553) internal successors, (13011), 8680 states have internal predecessors, (13011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:57,594 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8681 states to 8681 states and 13011 transitions.
[2024-12-02 08:42:57,595 INFO  L78                 Accepts]: Start accepts. Automaton has 8681 states and 13011 transitions. Word has length 4262
[2024-12-02 08:42:57,597 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:42:57,597 INFO  L471      AbstractCegarLoop]: Abstraction has 8681 states and 13011 transitions.
[2024-12-02 08:42:57,598 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1065.5) internal successors, (4262), 4 states have internal predecessors, (4262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:42:57,598 INFO  L276                IsEmpty]: Start isEmpty. Operand 8681 states and 13011 transitions.
[2024-12-02 08:42:57,697 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4264
[2024-12-02 08:42:57,697 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:42:57,699 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:42:57,699 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 08:42:57,700 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:42:57,701 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:42:57,703 INFO  L85        PathProgramCache]: Analyzing trace with hash -1930200787, now seen corresponding path program 1 times
[2024-12-02 08:42:57,703 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:42:57,703 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640955649]
[2024-12-02 08:42:57,703 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:42:57,703 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:43:01,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:43:09,243 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:43:09,243 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:43:09,243 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640955649]
[2024-12-02 08:43:09,243 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640955649] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:43:09,243 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:43:09,243 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 08:43:09,243 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746238951]
[2024-12-02 08:43:09,243 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:43:09,245 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 08:43:09,245 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:43:09,247 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 08:43:09,247 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 08:43:09,248 INFO  L87              Difference]: Start difference. First operand 8681 states and 13011 transitions. Second operand  has 6 states, 6 states have (on average 710.5) internal successors, (4263), 6 states have internal predecessors, (4263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:10,038 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:43:10,038 INFO  L93              Difference]: Finished difference Result 22024 states and 33014 transitions.
[2024-12-02 08:43:10,038 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 08:43:10,039 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 710.5) internal successors, (4263), 6 states have internal predecessors, (4263), 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 4263
[2024-12-02 08:43:10,042 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:43:10,047 INFO  L225             Difference]: With dead ends: 22024
[2024-12-02 08:43:10,047 INFO  L226             Difference]: Without dead ends: 8681
[2024-12-02 08:43:10,053 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-12-02 08:43:10,054 INFO  L435           NwaCegarLoop]: 11475 mSDtfsCounter, 25510 mSDsluCounter, 31305 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25510 SdHoareTripleChecker+Valid, 42780 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 08:43:10,054 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [25510 Valid, 42780 Invalid, 674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 08:43:10,061 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8681 states.
[2024-12-02 08:43:10,116 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8681 to 8681.
[2024-12-02 08:43:10,123 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8681 states, 8680 states have (on average 1.4988479262672811) internal successors, (13010), 8680 states have internal predecessors, (13010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:10,130 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8681 states to 8681 states and 13010 transitions.
[2024-12-02 08:43:10,130 INFO  L78                 Accepts]: Start accepts. Automaton has 8681 states and 13010 transitions. Word has length 4263
[2024-12-02 08:43:10,131 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:43:10,131 INFO  L471      AbstractCegarLoop]: Abstraction has 8681 states and 13010 transitions.
[2024-12-02 08:43:10,132 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 710.5) internal successors, (4263), 6 states have internal predecessors, (4263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:10,132 INFO  L276                IsEmpty]: Start isEmpty. Operand 8681 states and 13010 transitions.
[2024-12-02 08:43:10,222 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4265
[2024-12-02 08:43:10,222 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:43:10,223 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 08:43:10,224 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 08:43:10,224 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:43:10,225 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:43:10,226 INFO  L85        PathProgramCache]: Analyzing trace with hash -1919779184, now seen corresponding path program 1 times
[2024-12-02 08:43:10,226 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:43:10,226 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122973276]
[2024-12-02 08:43:10,226 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:43:10,226 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:43:10,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:43:16,720 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:43:16,720 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:43:16,720 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122973276]
[2024-12-02 08:43:16,720 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122973276] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:43:16,720 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:43:16,720 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:43:16,720 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199500672]
[2024-12-02 08:43:16,721 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:43:16,722 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:43:16,722 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:43:16,724 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:43:16,724 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:43:16,725 INFO  L87              Difference]: Start difference. First operand 8681 states and 13010 transitions. Second operand  has 4 states, 4 states have (on average 1066.0) internal successors, (4264), 4 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:17,724 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:43:17,724 INFO  L93              Difference]: Finished difference Result 22010 states and 32994 transitions.
[2024-12-02 08:43:17,724 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:43:17,725 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1066.0) internal successors, (4264), 4 states have internal predecessors, (4264), 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 4264
[2024-12-02 08:43:17,727 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:43:17,732 INFO  L225             Difference]: With dead ends: 22010
[2024-12-02 08:43:17,732 INFO  L226             Difference]: Without dead ends: 8681
[2024-12-02 08:43:17,738 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:43:17,739 INFO  L435           NwaCegarLoop]: 11373 mSDtfsCounter, 5740 mSDsluCounter, 22320 mSDsCounter, 0 mSdLazyCounter, 965 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5740 SdHoareTripleChecker+Valid, 33693 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 08:43:17,739 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5740 Valid, 33693 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 965 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 08:43:17,748 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8681 states.
[2024-12-02 08:43:17,810 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8681 to 8681.
[2024-12-02 08:43:17,817 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8681 states, 8680 states have (on average 1.4987327188940092) internal successors, (13009), 8680 states have internal predecessors, (13009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:17,824 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8681 states to 8681 states and 13009 transitions.
[2024-12-02 08:43:17,824 INFO  L78                 Accepts]: Start accepts. Automaton has 8681 states and 13009 transitions. Word has length 4264
[2024-12-02 08:43:17,825 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:43:17,825 INFO  L471      AbstractCegarLoop]: Abstraction has 8681 states and 13009 transitions.
[2024-12-02 08:43:17,826 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1066.0) internal successors, (4264), 4 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:17,826 INFO  L276                IsEmpty]: Start isEmpty. Operand 8681 states and 13009 transitions.
[2024-12-02 08:43:17,983 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4265
[2024-12-02 08:43:17,983 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:43:17,985 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:43:17,985 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 08:43:17,985 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:43:17,986 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:43:17,987 INFO  L85        PathProgramCache]: Analyzing trace with hash -931921761, now seen corresponding path program 1 times
[2024-12-02 08:43:17,987 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:43:17,987 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043767574]
[2024-12-02 08:43:17,987 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:43:17,987 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:43:21,699 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:43:32,247 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:43:32,247 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:43:32,247 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043767574]
[2024-12-02 08:43:32,247 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043767574] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:43:32,247 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:43:32,248 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 08:43:32,248 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613903407]
[2024-12-02 08:43:32,248 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:43:32,251 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 08:43:32,251 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:43:32,254 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 08:43:32,255 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-12-02 08:43:32,256 INFO  L87              Difference]: Start difference. First operand 8681 states and 13009 transitions. Second operand  has 6 states, 6 states have (on average 710.6666666666666) internal successors, (4264), 6 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:34,140 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:43:34,140 INFO  L93              Difference]: Finished difference Result 16162 states and 24219 transitions.
[2024-12-02 08:43:34,141 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 08:43:34,141 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 710.6666666666666) internal successors, (4264), 6 states have internal predecessors, (4264), 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 4264
[2024-12-02 08:43:34,142 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:43:34,147 INFO  L225             Difference]: With dead ends: 16162
[2024-12-02 08:43:34,147 INFO  L226             Difference]: Without dead ends: 8687
[2024-12-02 08:43:34,151 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42
[2024-12-02 08:43:34,151 INFO  L435           NwaCegarLoop]: 10589 mSDtfsCounter, 10962 mSDsluCounter, 10588 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10962 SdHoareTripleChecker+Valid, 21177 SdHoareTripleChecker+Invalid, 1933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-12-02 08:43:34,151 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10962 Valid, 21177 Invalid, 1933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-12-02 08:43:34,157 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8687 states.
[2024-12-02 08:43:34,206 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8687 to 8681.
[2024-12-02 08:43:34,213 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8681 states, 8680 states have (on average 1.4986175115207374) internal successors, (13008), 8680 states have internal predecessors, (13008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:34,221 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8681 states to 8681 states and 13008 transitions.
[2024-12-02 08:43:34,221 INFO  L78                 Accepts]: Start accepts. Automaton has 8681 states and 13008 transitions. Word has length 4264
[2024-12-02 08:43:34,221 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:43:34,221 INFO  L471      AbstractCegarLoop]: Abstraction has 8681 states and 13008 transitions.
[2024-12-02 08:43:34,222 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 710.6666666666666) internal successors, (4264), 6 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:34,222 INFO  L276                IsEmpty]: Start isEmpty. Operand 8681 states and 13008 transitions.
[2024-12-02 08:43:34,292 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4266
[2024-12-02 08:43:34,293 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:43:34,294 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 08:43:34,294 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-12-02 08:43:34,294 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:43:34,295 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:43:34,296 INFO  L85        PathProgramCache]: Analyzing trace with hash -39469051, now seen corresponding path program 1 times
[2024-12-02 08:43:34,296 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:43:34,296 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947343866]
[2024-12-02 08:43:34,296 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:43:34,296 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:43:37,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:43:44,645 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:43:44,645 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:43:44,645 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947343866]
[2024-12-02 08:43:44,645 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947343866] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:43:44,645 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:43:44,646 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:43:44,646 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181592260]
[2024-12-02 08:43:44,646 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:43:44,647 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:43:44,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:43:44,649 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:43:44,649 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:43:44,650 INFO  L87              Difference]: Start difference. First operand 8681 states and 13008 transitions. Second operand  has 5 states, 5 states have (on average 853.0) internal successors, (4265), 5 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:44,855 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:43:44,855 INFO  L93              Difference]: Finished difference Result 16157 states and 24210 transitions.
[2024-12-02 08:43:44,856 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 08:43:44,857 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 853.0) internal successors, (4265), 5 states have internal predecessors, (4265), 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 4265
[2024-12-02 08:43:44,857 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:43:44,863 INFO  L225             Difference]: With dead ends: 16157
[2024-12-02 08:43:44,863 INFO  L226             Difference]: Without dead ends: 8682
[2024-12-02 08:43:44,990 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-12-02 08:43:44,991 INFO  L435           NwaCegarLoop]: 11529 mSDtfsCounter, 10937 mSDsluCounter, 23053 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10937 SdHoareTripleChecker+Valid, 34582 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:43:44,991 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10937 Valid, 34582 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 08:43:44,997 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8682 states.
[2024-12-02 08:43:45,044 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8682 to 8682.
[2024-12-02 08:43:45,051 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8682 states, 8681 states have (on average 1.4985600737242253) internal successors, (13009), 8681 states have internal predecessors, (13009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:45,058 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8682 states to 8682 states and 13009 transitions.
[2024-12-02 08:43:45,059 INFO  L78                 Accepts]: Start accepts. Automaton has 8682 states and 13009 transitions. Word has length 4265
[2024-12-02 08:43:45,059 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:43:45,059 INFO  L471      AbstractCegarLoop]: Abstraction has 8682 states and 13009 transitions.
[2024-12-02 08:43:45,060 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 853.0) internal successors, (4265), 5 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:45,060 INFO  L276                IsEmpty]: Start isEmpty. Operand 8682 states and 13009 transitions.
[2024-12-02 08:43:45,130 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4266
[2024-12-02 08:43:45,131 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:43:45,132 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:43:45,132 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 08:43:45,132 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:43:45,133 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:43:45,134 INFO  L85        PathProgramCache]: Analyzing trace with hash -1810971707, now seen corresponding path program 1 times
[2024-12-02 08:43:45,134 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:43:45,134 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501480629]
[2024-12-02 08:43:45,134 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:43:45,134 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:43:49,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:43:55,276 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:43:55,276 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:43:55,276 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501480629]
[2024-12-02 08:43:55,276 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501480629] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:43:55,276 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:43:55,276 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:43:55,277 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175220]
[2024-12-02 08:43:55,277 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:43:55,278 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:43:55,278 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:43:55,280 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:43:55,280 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:43:55,281 INFO  L87              Difference]: Start difference. First operand 8682 states and 13009 transitions. Second operand  has 5 states, 5 states have (on average 853.0) internal successors, (4265), 5 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:55,899 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:43:55,900 INFO  L93              Difference]: Finished difference Result 16158 states and 24210 transitions.
[2024-12-02 08:43:55,900 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:43:55,901 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 853.0) internal successors, (4265), 5 states have internal predecessors, (4265), 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 4265
[2024-12-02 08:43:55,901 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:43:55,906 INFO  L225             Difference]: With dead ends: 16158
[2024-12-02 08:43:55,906 INFO  L226             Difference]: Without dead ends: 8682
[2024-12-02 08:43:55,911 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-02 08:43:55,911 INFO  L435           NwaCegarLoop]: 11166 mSDtfsCounter, 11547 mSDsluCounter, 11164 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11547 SdHoareTripleChecker+Valid, 22330 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 08:43:55,911 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11547 Valid, 22330 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 08:43:55,917 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8682 states.
[2024-12-02 08:43:55,966 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8682 to 8682.
[2024-12-02 08:43:55,973 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8682 states, 8681 states have (on average 1.4984448796221634) internal successors, (13008), 8681 states have internal predecessors, (13008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:55,981 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8682 states to 8682 states and 13008 transitions.
[2024-12-02 08:43:55,981 INFO  L78                 Accepts]: Start accepts. Automaton has 8682 states and 13008 transitions. Word has length 4265
[2024-12-02 08:43:55,981 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:43:55,981 INFO  L471      AbstractCegarLoop]: Abstraction has 8682 states and 13008 transitions.
[2024-12-02 08:43:55,982 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 853.0) internal successors, (4265), 5 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:43:55,982 INFO  L276                IsEmpty]: Start isEmpty. Operand 8682 states and 13008 transitions.
[2024-12-02 08:43:56,052 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4267
[2024-12-02 08:43:56,052 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:43:56,053 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:43:56,054 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-12-02 08:43:56,054 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:43:56,055 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:43:56,056 INFO  L85        PathProgramCache]: Analyzing trace with hash 2030893201, now seen corresponding path program 1 times
[2024-12-02 08:43:56,056 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:43:56,056 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424886896]
[2024-12-02 08:43:56,056 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:43:56,056 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:43:56,748 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:44:02,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:44:02,521 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:44:02,521 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424886896]
[2024-12-02 08:44:02,521 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424886896] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:44:02,521 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:44:02,521 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:44:02,521 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875082709]
[2024-12-02 08:44:02,521 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:44:02,523 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:44:02,523 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:44:02,525 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:44:02,525 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:44:02,526 INFO  L87              Difference]: Start difference. First operand 8682 states and 13008 transitions. Second operand  has 4 states, 4 states have (on average 1066.5) internal successors, (4266), 4 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:03,665 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:44:03,665 INFO  L93              Difference]: Finished difference Result 21990 states and 32957 transitions.
[2024-12-02 08:44:03,665 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:44:03,666 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1066.5) internal successors, (4266), 4 states have internal predecessors, (4266), 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 4266
[2024-12-02 08:44:03,668 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:44:03,672 INFO  L225             Difference]: With dead ends: 21990
[2024-12-02 08:44:03,672 INFO  L226             Difference]: Without dead ends: 8682
[2024-12-02 08:44:03,677 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:44:03,677 INFO  L435           NwaCegarLoop]: 11377 mSDtfsCounter, 5724 mSDsluCounter, 22323 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5724 SdHoareTripleChecker+Valid, 33700 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 08:44:03,677 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5724 Valid, 33700 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 08:44:03,683 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8682 states.
[2024-12-02 08:44:03,731 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8682 to 8682.
[2024-12-02 08:44:03,737 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8682 states, 8681 states have (on average 1.4983296855201014) internal successors, (13007), 8681 states have internal predecessors, (13007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:03,745 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8682 states to 8682 states and 13007 transitions.
[2024-12-02 08:44:03,745 INFO  L78                 Accepts]: Start accepts. Automaton has 8682 states and 13007 transitions. Word has length 4266
[2024-12-02 08:44:03,745 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:44:03,745 INFO  L471      AbstractCegarLoop]: Abstraction has 8682 states and 13007 transitions.
[2024-12-02 08:44:03,746 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1066.5) internal successors, (4266), 4 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:03,746 INFO  L276                IsEmpty]: Start isEmpty. Operand 8682 states and 13007 transitions.
[2024-12-02 08:44:03,817 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4267
[2024-12-02 08:44:03,817 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:44:03,818 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 08:44:03,818 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-12-02 08:44:03,818 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:44:03,819 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:44:03,820 INFO  L85        PathProgramCache]: Analyzing trace with hash -754067168, now seen corresponding path program 1 times
[2024-12-02 08:44:03,820 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:44:03,820 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839245002]
[2024-12-02 08:44:03,821 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:44:03,821 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:44:05,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:44:12,092 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:44:12,092 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:44:12,092 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839245002]
[2024-12-02 08:44:12,092 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839245002] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:44:12,092 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:44:12,093 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:44:12,093 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110246641]
[2024-12-02 08:44:12,093 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:44:12,096 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:44:12,096 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:44:12,099 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:44:12,099 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:44:12,100 INFO  L87              Difference]: Start difference. First operand 8682 states and 13007 transitions. Second operand  has 5 states, 5 states have (on average 853.2) internal successors, (4266), 5 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:13,406 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:44:13,407 INFO  L93              Difference]: Finished difference Result 16158 states and 24206 transitions.
[2024-12-02 08:44:13,407 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:44:13,408 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 853.2) internal successors, (4266), 5 states have internal predecessors, (4266), 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 4266
[2024-12-02 08:44:13,408 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:44:13,412 INFO  L225             Difference]: With dead ends: 16158
[2024-12-02 08:44:13,412 INFO  L226             Difference]: Without dead ends: 8682
[2024-12-02 08:44:13,415 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:44:13,415 INFO  L435           NwaCegarLoop]: 10953 mSDtfsCounter, 23070 mSDsluCounter, 10947 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23070 SdHoareTripleChecker+Valid, 21900 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 08:44:13,415 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [23070 Valid, 21900 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 08:44:13,421 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8682 states.
[2024-12-02 08:44:13,467 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8682 to 8682.
[2024-12-02 08:44:13,474 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8682 states, 8681 states have (on average 1.4982144914180393) internal successors, (13006), 8681 states have internal predecessors, (13006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:13,481 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8682 states to 8682 states and 13006 transitions.
[2024-12-02 08:44:13,481 INFO  L78                 Accepts]: Start accepts. Automaton has 8682 states and 13006 transitions. Word has length 4266
[2024-12-02 08:44:13,482 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:44:13,482 INFO  L471      AbstractCegarLoop]: Abstraction has 8682 states and 13006 transitions.
[2024-12-02 08:44:13,482 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 853.2) internal successors, (4266), 5 states have internal predecessors, (4266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:13,482 INFO  L276                IsEmpty]: Start isEmpty. Operand 8682 states and 13006 transitions.
[2024-12-02 08:44:13,554 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4268
[2024-12-02 08:44:13,554 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:44:13,555 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:44:13,555 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-12-02 08:44:13,555 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:44:13,556 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:44:13,557 INFO  L85        PathProgramCache]: Analyzing trace with hash 773909437, now seen corresponding path program 1 times
[2024-12-02 08:44:13,557 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:44:13,557 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458731481]
[2024-12-02 08:44:13,557 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:44:13,557 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:44:17,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:44:23,872 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:44:23,873 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:44:23,873 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458731481]
[2024-12-02 08:44:23,873 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458731481] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:44:23,873 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:44:23,873 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:44:23,873 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520853215]
[2024-12-02 08:44:23,873 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:44:23,876 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:44:23,876 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:44:23,878 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:44:23,878 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:44:23,879 INFO  L87              Difference]: Start difference. First operand 8682 states and 13006 transitions. Second operand  has 5 states, 5 states have (on average 853.4) internal successors, (4267), 5 states have internal predecessors, (4267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:24,040 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:44:24,041 INFO  L93              Difference]: Finished difference Result 16159 states and 24206 transitions.
[2024-12-02 08:44:24,041 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 08:44:24,042 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 853.4) internal successors, (4267), 5 states have internal predecessors, (4267), 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 4267
[2024-12-02 08:44:24,042 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:44:24,047 INFO  L225             Difference]: With dead ends: 16159
[2024-12-02 08:44:24,047 INFO  L226             Difference]: Without dead ends: 8683
[2024-12-02 08:44:24,050 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-12-02 08:44:24,051 INFO  L435           NwaCegarLoop]: 11528 mSDtfsCounter, 10920 mSDsluCounter, 23051 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10920 SdHoareTripleChecker+Valid, 34579 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:44:24,051 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10920 Valid, 34579 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 08:44:24,057 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8683 states.
[2024-12-02 08:44:24,105 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8683 to 8683.
[2024-12-02 08:44:24,111 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8683 states, 8682 states have (on average 1.4981571066574522) internal successors, (13007), 8682 states have internal predecessors, (13007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:24,385 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8683 states to 8683 states and 13007 transitions.
[2024-12-02 08:44:24,386 INFO  L78                 Accepts]: Start accepts. Automaton has 8683 states and 13007 transitions. Word has length 4267
[2024-12-02 08:44:24,386 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:44:24,386 INFO  L471      AbstractCegarLoop]: Abstraction has 8683 states and 13007 transitions.
[2024-12-02 08:44:24,387 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 853.4) internal successors, (4267), 5 states have internal predecessors, (4267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:24,387 INFO  L276                IsEmpty]: Start isEmpty. Operand 8683 states and 13007 transitions.
[2024-12-02 08:44:24,455 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4268
[2024-12-02 08:44:24,455 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:44:24,456 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:44:24,456 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-12-02 08:44:24,456 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:44:24,457 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:44:24,458 INFO  L85        PathProgramCache]: Analyzing trace with hash -182349955, now seen corresponding path program 1 times
[2024-12-02 08:44:24,458 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:44:24,458 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332281550]
[2024-12-02 08:44:24,458 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:44:24,458 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:44:28,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:44:34,680 INFO  L134       CoverageAnalysis]: Checked inductivity of 488 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:44:34,681 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:44:34,681 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332281550]
[2024-12-02 08:44:34,681 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332281550] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:44:34,681 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:44:34,681 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:44:34,681 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631613990]
[2024-12-02 08:44:34,682 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:44:34,685 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:44:34,685 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:44:34,687 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:44:34,687 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:44:34,688 INFO  L87              Difference]: Start difference. First operand 8683 states and 13007 transitions. Second operand  has 5 states, 5 states have (on average 853.4) internal successors, (4267), 5 states have internal predecessors, (4267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:35,278 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:44:35,278 INFO  L93              Difference]: Finished difference Result 16160 states and 24206 transitions.
[2024-12-02 08:44:35,548 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:44:35,549 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 853.4) internal successors, (4267), 5 states have internal predecessors, (4267), 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 4267
[2024-12-02 08:44:35,549 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:44:35,556 INFO  L225             Difference]: With dead ends: 16160
[2024-12-02 08:44:35,556 INFO  L226             Difference]: Without dead ends: 8683
[2024-12-02 08:44:35,558 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-02 08:44:35,558 INFO  L435           NwaCegarLoop]: 11162 mSDtfsCounter, 22357 mSDsluCounter, 11159 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22357 SdHoareTripleChecker+Valid, 22321 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 08:44:35,559 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [22357 Valid, 22321 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 08:44:35,564 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8683 states.
[2024-12-02 08:44:35,613 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8683 to 8683.
[2024-12-02 08:44:35,620 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8683 states, 8682 states have (on average 1.498041925823543) internal successors, (13006), 8682 states have internal predecessors, (13006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:35,627 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8683 states to 8683 states and 13006 transitions.
[2024-12-02 08:44:35,627 INFO  L78                 Accepts]: Start accepts. Automaton has 8683 states and 13006 transitions. Word has length 4267
[2024-12-02 08:44:35,627 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:44:35,627 INFO  L471      AbstractCegarLoop]: Abstraction has 8683 states and 13006 transitions.
[2024-12-02 08:44:35,628 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 853.4) internal successors, (4267), 5 states have internal predecessors, (4267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 08:44:35,628 INFO  L276                IsEmpty]: Start isEmpty. Operand 8683 states and 13006 transitions.
[2024-12-02 08:44:35,696 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4269
[2024-12-02 08:44:35,697 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:44:35,697 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 08:44:35,697 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-12-02 08:44:35,698 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:44:35,698 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:44:35,699 INFO  L85        PathProgramCache]: Analyzing trace with hash -1129817984, now seen corresponding path program 1 times
[2024-12-02 08:44:35,699 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:44:35,699 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272985510]
[2024-12-02 08:44:35,699 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:44:35,699 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:44:36,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat