./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/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_6f6ab93e-33fe-4073-af81-371881534c4d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/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_6f6ab93e-33fe-4073-af81-371881534c4d/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 59a51494e44542a55e0efd5b7238524ccc4e20c79b0ec6f03f7167fd13a5d201
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 15:16:07,875 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-12-02 15:16:07,932 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-02 15:16:07,937 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 15:16:07,937 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 15:16:07,958 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 15:16:07,959 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 15:16:07,959 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 15:16:07,959 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 15:16:07,959 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-12-02 15:16:07,959 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 15:16:07,959 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 15:16:07,960 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 15:16:07,960 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-12-02 15:16:07,960 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-12-02 15:16:07,960 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 15:16:07,960 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-12-02 15:16:07,960 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-12-02 15:16:07,960 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-12-02 15:16:07,961 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 15:16:07,961 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 15:16:07,961 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 15:16:07,961 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-12-02 15:16:07,961 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 15:16:07,961 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-12-02 15:16:07,961 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 15:16:07,961 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 15:16:07,961 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 15:16:07,961 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 15:16:07,961 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:16:07,962 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 15:16:07,962 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 15:16:07,962 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 15:16:07,962 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 15:16:07,962 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:16:07,962 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 15:16:07,962 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 15:16:07,962 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-12-02 15:16:07,962 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 15:16:07,962 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-12-02 15:16:07,963 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 15:16:07,963 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 15:16:07,963 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 15:16:07,963 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 15:16:07,963 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 15:16:07,963 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_6f6ab93e-33fe-4073-af81-371881534c4d/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 -> 59a51494e44542a55e0efd5b7238524ccc4e20c79b0ec6f03f7167fd13a5d201
[2024-12-02 15:16:08,191 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 15:16:08,198 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 15:16:08,201 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 15:16:08,202 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-12-02 15:16:08,202 INFO  L274        PluginConnector]: CDTParser initialized
[2024-12-02 15:16:08,203 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-back-serstep.c
[2024-12-02 15:16:10,840 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/bin/uautomizer-verify-84ZbGMXZE1/data/d72d49897/07463dfcb77844e6aaff16a7bb0840ff/FLAG3c8eeee55
[2024-12-02 15:16:11,200 INFO  L384              CDTParser]: Found 1 translation units.
[2024-12-02 15:16:11,201 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-back-serstep.c
[2024-12-02 15:16:11,226 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/bin/uautomizer-verify-84ZbGMXZE1/data/d72d49897/07463dfcb77844e6aaff16a7bb0840ff/FLAG3c8eeee55
[2024-12-02 15:16:11,388 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/bin/uautomizer-verify-84ZbGMXZE1/data/d72d49897/07463dfcb77844e6aaff16a7bb0840ff
[2024-12-02 15:16:11,389 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 15:16:11,391 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 15:16:11,392 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 15:16:11,392 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 15:16:11,395 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 15:16:11,396 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:16:11" (1/1) ...
[2024-12-02 15:16:11,397 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f58dcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:11, skipping insertion in model container
[2024-12-02 15:16:11,397 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:16:11" (1/1) ...
[2024-12-02 15:16:11,492 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-12-02 15:16:11,698 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_6f6ab93e-33fe-4073-af81-371881534c4d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-back-serstep.c[1177,1190]
[2024-12-02 15:16:12,352 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 15:16:12,364 INFO  L200         MainTranslator]: Completed pre-run
[2024-12-02 15:16:12,375 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_6f6ab93e-33fe-4073-af81-371881534c4d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-back-serstep.c[1177,1190]
[2024-12-02 15:16:12,913 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 15:16:12,928 INFO  L204         MainTranslator]: Completed translation
[2024-12-02 15:16:12,928 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12 WrapperNode
[2024-12-02 15:16:12,928 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 15:16:12,929 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 15:16:12,930 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 15:16:12,930 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 15:16:12,936 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:13,064 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:14,841 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25034
[2024-12-02 15:16:14,841 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 15:16:14,842 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 15:16:14,842 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 15:16:14,842 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 15:16:14,849 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:14,849 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:15,204 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:15,542 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-02 15:16:15,543 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:15,543 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:15,987 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:16,050 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:16,134 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:16,227 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:16,311 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:16,692 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 15:16:16,693 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 15:16:16,693 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 15:16:16,693 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-12-02 15:16:16,694 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (1/1) ...
[2024-12-02 15:16:16,699 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:16:16,708 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 15:16:16,719 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 15:16:16,722 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f6ab93e-33fe-4073-af81-371881534c4d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 15:16:16,741 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 15:16:16,741 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 15:16:16,741 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 15:16:16,741 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 15:16:17,898 INFO  L234             CfgBuilder]: Building ICFG
[2024-12-02 15:16:17,899 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 15:17:30,783 INFO  L?                        ?]: Removed 13548 outVars from TransFormulas that were not future-live.
[2024-12-02 15:17:30,783 INFO  L283             CfgBuilder]: Performing block encoding
[2024-12-02 15:17:30,909 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 15:17:30,909 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 15:17:30,910 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:17:30 BoogieIcfgContainer
[2024-12-02 15:17:30,910 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 15:17:30,912 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 15:17:30,912 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 15:17:30,918 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-12-02 15:17:30,918 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:16:11" (1/3) ...
[2024-12-02 15:17:30,919 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56108b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:17:30, skipping insertion in model container
[2024-12-02 15:17:30,919 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:16:12" (2/3) ...
[2024-12-02 15:17:30,920 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56108b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:17:30, skipping insertion in model container
[2024-12-02 15:17:30,920 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:17:30" (3/3) ...
[2024-12-02 15:17:30,921 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.4.prop1-back-serstep.c
[2024-12-02 15:17:30,939 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 15:17:30,940 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.4.prop1-back-serstep.c that has 1 procedures, 8762 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 15:17:31,137 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 15:17:31,158 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;@155fe3f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 15:17:31,158 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 15:17:31,189 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8762 states, 8760 states have (on average 1.5039954337899544) internal successors, (13175), 8761 states have internal predecessors, (13175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:17:31,241 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 700
[2024-12-02 15:17:31,241 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:17:31,242 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:17:31,243 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:17:31,248 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:17:31,249 INFO  L85        PathProgramCache]: Analyzing trace with hash 1965517741, now seen corresponding path program 1 times
[2024-12-02 15:17:31,258 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:17:31,259 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033297086]
[2024-12-02 15:17:31,260 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:17:31,260 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:17:32,020 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:17:34,631 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:17:34,631 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:17:34,631 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033297086]
[2024-12-02 15:17:34,632 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033297086] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:17:34,632 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:17:34,633 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:17:34,634 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827813266]
[2024-12-02 15:17:34,635 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:17:34,639 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:17:34,640 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:17:34,660 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:17:34,660 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:17:34,677 INFO  L87              Difference]: Start difference. First operand  has 8762 states, 8760 states have (on average 1.5039954337899544) internal successors, (13175), 8761 states have internal predecessors, (13175), 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 174.75) internal successors, (699), 4 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:17:35,117 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:17:35,117 INFO  L93              Difference]: Finished difference Result 17225 states and 25905 transitions.
[2024-12-02 15:17:35,118 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:17:35,120 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 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 699
[2024-12-02 15:17:35,122 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:17:35,160 INFO  L225             Difference]: With dead ends: 17225
[2024-12-02 15:17:35,161 INFO  L226             Difference]: Without dead ends: 8761
[2024-12-02 15:17:35,173 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:17:35,176 INFO  L435           NwaCegarLoop]: 13169 mSDtfsCounter, 0 mSDsluCounter, 26332 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39501 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:17:35,177 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39501 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:17:35,206 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8761 states.
[2024-12-02 15:17:35,377 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8761 to 8761.
[2024-12-02 15:17:35,396 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8761 states, 8760 states have (on average 1.5037671232876713) internal successors, (13173), 8760 states have internal predecessors, (13173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:17:35,435 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8761 states to 8761 states and 13173 transitions.
[2024-12-02 15:17:35,436 INFO  L78                 Accepts]: Start accepts. Automaton has 8761 states and 13173 transitions. Word has length 699
[2024-12-02 15:17:35,438 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:17:35,438 INFO  L471      AbstractCegarLoop]: Abstraction has 8761 states and 13173 transitions.
[2024-12-02 15:17:35,439 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 174.75) internal successors, (699), 4 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:17:35,439 INFO  L276                IsEmpty]: Start isEmpty. Operand 8761 states and 13173 transitions.
[2024-12-02 15:17:35,459 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 701
[2024-12-02 15:17:35,459 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:17:35,459 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:17:35,460 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 15:17:35,460 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:17:35,460 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:17:35,461 INFO  L85        PathProgramCache]: Analyzing trace with hash 803207491, now seen corresponding path program 1 times
[2024-12-02 15:17:35,461 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:17:35,461 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232086110]
[2024-12-02 15:17:35,461 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:17:35,461 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:17:35,773 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:17:37,026 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:17:37,026 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:17:37,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232086110]
[2024-12-02 15:17:37,026 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232086110] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:17:37,026 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:17:37,027 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:17:37,027 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320085957]
[2024-12-02 15:17:37,027 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:17:37,029 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:17:37,029 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:17:37,030 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:17:37,030 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:17:37,031 INFO  L87              Difference]: Start difference. First operand 8761 states and 13173 transitions. Second operand  has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:17:37,256 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:17:37,256 INFO  L93              Difference]: Finished difference Result 17226 states and 25903 transitions.
[2024-12-02 15:17:37,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:17:37,258 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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 700
[2024-12-02 15:17:37,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:17:37,279 INFO  L225             Difference]: With dead ends: 17226
[2024-12-02 15:17:37,280 INFO  L226             Difference]: Without dead ends: 8763
[2024-12-02 15:17:37,287 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:17:37,288 INFO  L435           NwaCegarLoop]: 13169 mSDtfsCounter, 0 mSDsluCounter, 26328 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39497 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:17:37,288 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39497 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:17:37,300 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8763 states.
[2024-12-02 15:17:37,398 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8763 to 8763.
[2024-12-02 15:17:37,407 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8763 states, 8762 states have (on average 1.5036521342159324) internal successors, (13175), 8762 states have internal predecessors, (13175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:17:37,426 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8763 states to 8763 states and 13175 transitions.
[2024-12-02 15:17:37,426 INFO  L78                 Accepts]: Start accepts. Automaton has 8763 states and 13175 transitions. Word has length 700
[2024-12-02 15:17:37,427 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:17:37,427 INFO  L471      AbstractCegarLoop]: Abstraction has 8763 states and 13175 transitions.
[2024-12-02 15:17:37,428 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:17:37,428 INFO  L276                IsEmpty]: Start isEmpty. Operand 8763 states and 13175 transitions.
[2024-12-02 15:17:37,433 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 702
[2024-12-02 15:17:37,433 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:17:37,434 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:17:37,434 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 15:17:37,434 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:17:37,434 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:17:37,435 INFO  L85        PathProgramCache]: Analyzing trace with hash -1968332986, now seen corresponding path program 1 times
[2024-12-02 15:17:37,435 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:17:37,435 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962023376]
[2024-12-02 15:17:37,435 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:17:37,435 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:17:37,686 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:17:38,569 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:17:38,569 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:17:38,569 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962023376]
[2024-12-02 15:17:38,569 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962023376] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:17:38,570 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:17:38,570 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:17:38,570 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338003060]
[2024-12-02 15:17:38,570 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:17:38,571 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:17:38,571 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:17:38,571 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:17:38,572 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:17:38,572 INFO  L87              Difference]: Start difference. First operand 8763 states and 13175 transitions. Second operand  has 5 states, 5 states have (on average 140.2) internal successors, (701), 5 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:17:38,883 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:17:38,883 INFO  L93              Difference]: Finished difference Result 25679 states and 38614 transitions.
[2024-12-02 15:17:38,884 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:17:38,884 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 140.2) internal successors, (701), 5 states have internal predecessors, (701), 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 701
[2024-12-02 15:17:38,885 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:17:38,921 INFO  L225             Difference]: With dead ends: 25679
[2024-12-02 15:17:38,921 INFO  L226             Difference]: Without dead ends: 17214
[2024-12-02 15:17:38,931 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 15:17:38,932 INFO  L435           NwaCegarLoop]: 13167 mSDtfsCounter, 12462 mSDsluCounter, 39050 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12462 SdHoareTripleChecker+Valid, 52217 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:17:38,932 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12462 Valid, 52217 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:17:38,950 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17214 states.
[2024-12-02 15:17:39,084 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17214 to 9849.
[2024-12-02 15:17:39,094 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9849 states, 9848 states have (on average 1.5031478472786353) internal successors, (14803), 9848 states have internal predecessors, (14803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:17:39,107 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9849 states to 9849 states and 14803 transitions.
[2024-12-02 15:17:39,107 INFO  L78                 Accepts]: Start accepts. Automaton has 9849 states and 14803 transitions. Word has length 701
[2024-12-02 15:17:39,108 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:17:39,108 INFO  L471      AbstractCegarLoop]: Abstraction has 9849 states and 14803 transitions.
[2024-12-02 15:17:39,109 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 140.2) internal successors, (701), 5 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:17:39,109 INFO  L276                IsEmpty]: Start isEmpty. Operand 9849 states and 14803 transitions.
[2024-12-02 15:17:39,203 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4825
[2024-12-02 15:17:39,203 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:17:39,205 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:17:39,205 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 15:17:39,205 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:17:39,207 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:17:39,208 INFO  L85        PathProgramCache]: Analyzing trace with hash -162832826, now seen corresponding path program 1 times
[2024-12-02 15:17:39,209 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:17:39,209 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662777644]
[2024-12-02 15:17:39,209 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:17:39,209 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:17:47,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:18:00,823 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 542 trivial. 0 not checked.
[2024-12-02 15:18:00,823 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:18:00,823 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662777644]
[2024-12-02 15:18:00,823 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662777644] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:18:00,823 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:18:00,824 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:18:00,824 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650989107]
[2024-12-02 15:18:00,824 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:18:00,828 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:18:00,828 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:18:00,832 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:18:00,832 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:18:00,833 INFO  L87              Difference]: Start difference. First operand 9849 states and 14803 transitions. Second operand  has 5 states, 5 states have (on average 856.6) internal successors, (4283), 5 states have internal predecessors, (4283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:01,125 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:18:01,126 INFO  L93              Difference]: Finished difference Result 18318 states and 27537 transitions.
[2024-12-02 15:18:01,126 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:18:01,127 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 856.6) internal successors, (4283), 5 states have internal predecessors, (4283), 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 4824
[2024-12-02 15:18:01,138 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:18:01,161 INFO  L225             Difference]: With dead ends: 18318
[2024-12-02 15:18:01,162 INFO  L226             Difference]: Without dead ends: 9853
[2024-12-02 15:18:01,172 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 15:18:01,173 INFO  L435           NwaCegarLoop]: 13169 mSDtfsCounter, 0 mSDsluCounter, 26328 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39497 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:18:01,174 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39497 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:18:01,192 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9853 states.
[2024-12-02 15:18:01,366 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9853 to 9849.
[2024-12-02 15:18:01,379 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9849 states, 9848 states have (on average 1.5031478472786353) internal successors, (14803), 9848 states have internal predecessors, (14803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:01,402 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9849 states to 9849 states and 14803 transitions.
[2024-12-02 15:18:01,403 INFO  L78                 Accepts]: Start accepts. Automaton has 9849 states and 14803 transitions. Word has length 4824
[2024-12-02 15:18:01,410 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:18:01,410 INFO  L471      AbstractCegarLoop]: Abstraction has 9849 states and 14803 transitions.
[2024-12-02 15:18:01,411 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 856.6) internal successors, (4283), 5 states have internal predecessors, (4283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:01,411 INFO  L276                IsEmpty]: Start isEmpty. Operand 9849 states and 14803 transitions.
[2024-12-02 15:18:01,695 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4826
[2024-12-02 15:18:01,695 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:18:01,698 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:18:01,698 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 15:18:01,698 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:18:01,700 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:18:01,702 INFO  L85        PathProgramCache]: Analyzing trace with hash 156041002, now seen corresponding path program 1 times
[2024-12-02 15:18:01,702 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:18:01,703 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648176312]
[2024-12-02 15:18:01,704 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:18:01,704 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:18:07,850 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:18:21,997 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:18:21,997 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:18:21,998 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648176312]
[2024-12-02 15:18:21,998 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648176312] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:18:21,998 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:18:21,998 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:18:21,999 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265677436]
[2024-12-02 15:18:21,999 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:18:22,002 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:18:22,002 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:18:22,006 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:18:22,006 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:18:22,008 INFO  L87              Difference]: Start difference. First operand 9849 states and 14803 transitions. Second operand  has 4 states, 4 states have (on average 1206.25) internal successors, (4825), 4 states have internal predecessors, (4825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:23,803 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:18:23,803 INFO  L93              Difference]: Finished difference Result 18244 states and 27462 transitions.
[2024-12-02 15:18:23,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:18:23,805 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1206.25) internal successors, (4825), 4 states have internal predecessors, (4825), 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 4825
[2024-12-02 15:18:23,807 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:18:23,824 INFO  L225             Difference]: With dead ends: 18244
[2024-12-02 15:18:23,825 INFO  L226             Difference]: Without dead ends: 9777
[2024-12-02 15:18:23,830 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 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 15:18:23,831 INFO  L435           NwaCegarLoop]: 12274 mSDtfsCounter, 11010 mSDsluCounter, 12271 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11010 SdHoareTripleChecker+Valid, 24545 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-12-02 15:18:23,831 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11010 Valid, 24545 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2024-12-02 15:18:23,843 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9777 states.
[2024-12-02 15:18:23,943 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9777 to 9777.
[2024-12-02 15:18:23,955 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9777 states, 9776 states have (on average 1.499283960720131) internal successors, (14657), 9776 states have internal predecessors, (14657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:23,967 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9777 states to 9777 states and 14657 transitions.
[2024-12-02 15:18:23,968 INFO  L78                 Accepts]: Start accepts. Automaton has 9777 states and 14657 transitions. Word has length 4825
[2024-12-02 15:18:23,970 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:18:23,970 INFO  L471      AbstractCegarLoop]: Abstraction has 9777 states and 14657 transitions.
[2024-12-02 15:18:23,971 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1206.25) internal successors, (4825), 4 states have internal predecessors, (4825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:23,971 INFO  L276                IsEmpty]: Start isEmpty. Operand 9777 states and 14657 transitions.
[2024-12-02 15:18:24,172 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4827
[2024-12-02 15:18:24,172 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:18:24,175 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:18:24,175 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 15:18:24,175 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:18:24,177 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:18:24,179 INFO  L85        PathProgramCache]: Analyzing trace with hash 1318159149, now seen corresponding path program 1 times
[2024-12-02 15:18:24,179 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:18:24,179 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52888903]
[2024-12-02 15:18:24,180 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:18:24,181 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:18:30,059 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:18:39,188 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:18:39,188 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:18:39,188 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52888903]
[2024-12-02 15:18:39,189 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52888903] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:18:39,189 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:18:39,189 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:18:39,189 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078614678]
[2024-12-02 15:18:39,189 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:18:39,193 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:18:39,193 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:18:39,196 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:18:39,197 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:18:39,198 INFO  L87              Difference]: Start difference. First operand 9777 states and 14657 transitions. Second operand  has 4 states, 4 states have (on average 1206.5) internal successors, (4826), 4 states have internal predecessors, (4826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:39,970 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:18:39,970 INFO  L93              Difference]: Finished difference Result 18175 states and 27246 transitions.
[2024-12-02 15:18:39,970 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:18:39,972 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1206.5) internal successors, (4826), 4 states have internal predecessors, (4826), 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 4826
[2024-12-02 15:18:39,974 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:18:39,990 INFO  L225             Difference]: With dead ends: 18175
[2024-12-02 15:18:39,991 INFO  L226             Difference]: Without dead ends: 9777
[2024-12-02 15:18:39,999 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 15:18:40,000 INFO  L435           NwaCegarLoop]: 12665 mSDtfsCounter, 11004 mSDsluCounter, 12657 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11004 SdHoareTripleChecker+Valid, 25322 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 15:18:40,000 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11004 Valid, 25322 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 15:18:40,017 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9777 states.
[2024-12-02 15:18:40,174 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9777 to 9777.
[2024-12-02 15:18:40,182 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9777 states, 9776 states have (on average 1.4991816693944353) internal successors, (14656), 9776 states have internal predecessors, (14656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:40,192 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9777 states to 9777 states and 14656 transitions.
[2024-12-02 15:18:40,192 INFO  L78                 Accepts]: Start accepts. Automaton has 9777 states and 14656 transitions. Word has length 4826
[2024-12-02 15:18:40,194 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:18:40,194 INFO  L471      AbstractCegarLoop]: Abstraction has 9777 states and 14656 transitions.
[2024-12-02 15:18:40,194 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1206.5) internal successors, (4826), 4 states have internal predecessors, (4826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:40,194 INFO  L276                IsEmpty]: Start isEmpty. Operand 9777 states and 14656 transitions.
[2024-12-02 15:18:40,298 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4828
[2024-12-02 15:18:40,298 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:18:40,300 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:18:40,300 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 15:18:40,301 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:18:40,302 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:18:40,304 INFO  L85        PathProgramCache]: Analyzing trace with hash -210958078, now seen corresponding path program 1 times
[2024-12-02 15:18:40,304 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:18:40,304 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101344220]
[2024-12-02 15:18:40,305 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:18:40,305 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:18:45,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:18:55,632 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:18:55,632 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:18:55,632 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101344220]
[2024-12-02 15:18:55,632 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101344220] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:18:55,632 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:18:55,633 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 15:18:55,633 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61994204]
[2024-12-02 15:18:55,633 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:18:55,637 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 15:18:55,637 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:18:55,639 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 15:18:55,639 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-12-02 15:18:55,640 INFO  L87              Difference]: Start difference. First operand 9777 states and 14656 transitions. Second operand  has 6 states, 6 states have (on average 804.5) internal successors, (4827), 6 states have internal predecessors, (4827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:56,591 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:18:56,591 INFO  L93              Difference]: Finished difference Result 20760 states and 31121 transitions.
[2024-12-02 15:18:56,592 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 15:18:56,593 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 804.5) internal successors, (4827), 6 states have internal predecessors, (4827), 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 4827
[2024-12-02 15:18:56,594 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:18:56,601 INFO  L225             Difference]: With dead ends: 20760
[2024-12-02 15:18:56,601 INFO  L226             Difference]: Without dead ends: 9777
[2024-12-02 15:18:56,607 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 15:18:56,608 INFO  L435           NwaCegarLoop]: 12930 mSDtfsCounter, 18695 mSDsluCounter, 38158 mSDsCounter, 0 mSdLazyCounter, 996 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18695 SdHoareTripleChecker+Valid, 51088 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 15:18:56,608 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [18695 Valid, 51088 Invalid, 1037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 996 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 15:18:56,616 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9777 states.
[2024-12-02 15:18:56,696 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9777 to 9777.
[2024-12-02 15:18:56,705 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9777 states, 9776 states have (on average 1.4990793780687397) internal successors, (14655), 9776 states have internal predecessors, (14655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:56,717 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9777 states to 9777 states and 14655 transitions.
[2024-12-02 15:18:56,717 INFO  L78                 Accepts]: Start accepts. Automaton has 9777 states and 14655 transitions. Word has length 4827
[2024-12-02 15:18:56,718 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:18:56,718 INFO  L471      AbstractCegarLoop]: Abstraction has 9777 states and 14655 transitions.
[2024-12-02 15:18:56,720 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 804.5) internal successors, (4827), 6 states have internal predecessors, (4827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:18:56,720 INFO  L276                IsEmpty]: Start isEmpty. Operand 9777 states and 14655 transitions.
[2024-12-02 15:18:56,910 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4829
[2024-12-02 15:18:56,910 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:18:56,911 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:18:56,912 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 15:18:56,912 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:18:56,913 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:18:56,914 INFO  L85        PathProgramCache]: Analyzing trace with hash 882675583, now seen corresponding path program 1 times
[2024-12-02 15:18:56,915 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:18:56,915 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448314608]
[2024-12-02 15:18:56,915 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:18:56,916 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:18:57,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:19:04,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:19:04,266 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:19:04,266 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448314608]
[2024-12-02 15:19:04,266 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448314608] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:19:04,266 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:19:04,266 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:19:04,266 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32445612]
[2024-12-02 15:19:04,266 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:19:04,270 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:19:04,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:19:04,272 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:19:04,272 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:19:04,273 INFO  L87              Difference]: Start difference. First operand 9777 states and 14655 transitions. Second operand  has 4 states, 4 states have (on average 1207.0) internal successors, (4828), 4 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:05,339 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:19:05,339 INFO  L93              Difference]: Finished difference Result 20733 states and 31077 transitions.
[2024-12-02 15:19:05,339 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:19:05,340 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1207.0) internal successors, (4828), 4 states have internal predecessors, (4828), 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 4828
[2024-12-02 15:19:05,341 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:19:05,347 INFO  L225             Difference]: With dead ends: 20733
[2024-12-02 15:19:05,348 INFO  L226             Difference]: Without dead ends: 9777
[2024-12-02 15:19:05,354 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:19:05,355 INFO  L435           NwaCegarLoop]: 12869 mSDtfsCounter, 2454 mSDsluCounter, 25176 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2454 SdHoareTripleChecker+Valid, 38045 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 15:19:05,355 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2454 Valid, 38045 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1014 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 15:19:05,364 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9777 states.
[2024-12-02 15:19:05,432 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9777 to 9777.
[2024-12-02 15:19:05,440 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9777 states, 9776 states have (on average 1.498977086743044) internal successors, (14654), 9776 states have internal predecessors, (14654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:05,450 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9777 states to 9777 states and 14654 transitions.
[2024-12-02 15:19:05,450 INFO  L78                 Accepts]: Start accepts. Automaton has 9777 states and 14654 transitions. Word has length 4828
[2024-12-02 15:19:05,451 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:19:05,451 INFO  L471      AbstractCegarLoop]: Abstraction has 9777 states and 14654 transitions.
[2024-12-02 15:19:05,451 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1207.0) internal successors, (4828), 4 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:05,452 INFO  L276                IsEmpty]: Start isEmpty. Operand 9777 states and 14654 transitions.
[2024-12-02 15:19:05,550 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4829
[2024-12-02 15:19:05,551 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:19:05,552 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:19:05,553 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 15:19:05,553 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:19:05,554 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:19:05,555 INFO  L85        PathProgramCache]: Analyzing trace with hash 1436812110, now seen corresponding path program 1 times
[2024-12-02 15:19:05,555 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:19:05,555 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807051660]
[2024-12-02 15:19:05,555 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:19:05,555 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:19:11,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:19:23,316 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:19:23,316 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:19:23,316 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807051660]
[2024-12-02 15:19:23,316 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807051660] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:19:23,316 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:19:23,317 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 15:19:23,317 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631087702]
[2024-12-02 15:19:23,317 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:19:23,319 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 15:19:23,319 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:19:23,323 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 15:19:23,323 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-12-02 15:19:23,324 INFO  L87              Difference]: Start difference. First operand 9777 states and 14654 transitions. Second operand  has 6 states, 6 states have (on average 804.6666666666666) internal successors, (4828), 6 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:25,430 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:19:25,431 INFO  L93              Difference]: Finished difference Result 18178 states and 27245 transitions.
[2024-12-02 15:19:25,431 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:19:25,432 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 804.6666666666666) internal successors, (4828), 6 states have internal predecessors, (4828), 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 4828
[2024-12-02 15:19:25,433 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:19:25,438 INFO  L225             Difference]: With dead ends: 18178
[2024-12-02 15:19:25,438 INFO  L226             Difference]: Without dead ends: 9783
[2024-12-02 15:19:25,443 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 15:19:25,444 INFO  L435           NwaCegarLoop]: 11959 mSDtfsCounter, 12313 mSDsluCounter, 11958 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12313 SdHoareTripleChecker+Valid, 23917 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-12-02 15:19:25,444 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12313 Valid, 23917 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-12-02 15:19:25,451 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9783 states.
[2024-12-02 15:19:25,531 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9783 to 9777.
[2024-12-02 15:19:25,538 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9777 states, 9776 states have (on average 1.4988747954173487) internal successors, (14653), 9776 states have internal predecessors, (14653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:25,546 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9777 states to 9777 states and 14653 transitions.
[2024-12-02 15:19:25,546 INFO  L78                 Accepts]: Start accepts. Automaton has 9777 states and 14653 transitions. Word has length 4828
[2024-12-02 15:19:25,547 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:19:25,547 INFO  L471      AbstractCegarLoop]: Abstraction has 9777 states and 14653 transitions.
[2024-12-02 15:19:25,547 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 804.6666666666666) internal successors, (4828), 6 states have internal predecessors, (4828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:25,547 INFO  L276                IsEmpty]: Start isEmpty. Operand 9777 states and 14653 transitions.
[2024-12-02 15:19:25,640 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4830
[2024-12-02 15:19:25,640 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:19:25,641 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:19:25,641 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 15:19:25,642 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:19:25,643 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:19:25,644 INFO  L85        PathProgramCache]: Analyzing trace with hash 750092570, now seen corresponding path program 1 times
[2024-12-02 15:19:25,644 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:19:25,644 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880363727]
[2024-12-02 15:19:25,644 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:19:25,644 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:19:31,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:19:39,747 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:19:39,748 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:19:39,748 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880363727]
[2024-12-02 15:19:39,748 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880363727] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:19:39,748 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:19:39,748 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:19:39,748 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362425041]
[2024-12-02 15:19:39,748 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:19:39,750 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:19:39,750 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:19:39,753 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:19:39,753 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:19:39,754 INFO  L87              Difference]: Start difference. First operand 9777 states and 14653 transitions. Second operand  has 5 states, 5 states have (on average 965.8) internal successors, (4829), 5 states have internal predecessors, (4829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:39,987 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:19:39,987 INFO  L93              Difference]: Finished difference Result 18173 states and 27236 transitions.
[2024-12-02 15:19:39,988 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:19:39,989 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 965.8) internal successors, (4829), 5 states have internal predecessors, (4829), 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 4829
[2024-12-02 15:19:39,989 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:19:39,995 INFO  L225             Difference]: With dead ends: 18173
[2024-12-02 15:19:39,995 INFO  L226             Difference]: Without dead ends: 9778
[2024-12-02 15:19:40,000 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 15:19:40,000 INFO  L435           NwaCegarLoop]: 12970 mSDtfsCounter, 12302 mSDsluCounter, 25935 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12302 SdHoareTripleChecker+Valid, 38905 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:19:40,001 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12302 Valid, 38905 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:19:40,009 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9778 states.
[2024-12-02 15:19:40,072 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9778 to 9778.
[2024-12-02 15:19:40,080 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9778 states, 9777 states have (on average 1.4988237700726195) internal successors, (14654), 9777 states have internal predecessors, (14654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:40,089 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9778 states to 9778 states and 14654 transitions.
[2024-12-02 15:19:40,089 INFO  L78                 Accepts]: Start accepts. Automaton has 9778 states and 14654 transitions. Word has length 4829
[2024-12-02 15:19:40,090 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:19:40,090 INFO  L471      AbstractCegarLoop]: Abstraction has 9778 states and 14654 transitions.
[2024-12-02 15:19:40,091 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 965.8) internal successors, (4829), 5 states have internal predecessors, (4829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:40,091 INFO  L276                IsEmpty]: Start isEmpty. Operand 9778 states and 14654 transitions.
[2024-12-02 15:19:40,207 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4830
[2024-12-02 15:19:40,207 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:19:40,209 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:19:40,210 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 15:19:40,210 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:19:40,211 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:19:40,213 INFO  L85        PathProgramCache]: Analyzing trace with hash 934999258, now seen corresponding path program 1 times
[2024-12-02 15:19:40,213 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:19:40,213 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541793120]
[2024-12-02 15:19:40,213 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:19:40,213 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:19:45,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:19:53,095 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:19:53,095 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:19:53,095 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541793120]
[2024-12-02 15:19:53,095 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541793120] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:19:53,095 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:19:53,096 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:19:53,096 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634015514]
[2024-12-02 15:19:53,096 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:19:53,097 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:19:53,097 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:19:53,099 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:19:53,099 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:19:53,100 INFO  L87              Difference]: Start difference. First operand 9778 states and 14654 transitions. Second operand  has 5 states, 5 states have (on average 965.8) internal successors, (4829), 5 states have internal predecessors, (4829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:53,767 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:19:53,767 INFO  L93              Difference]: Finished difference Result 18174 states and 27236 transitions.
[2024-12-02 15:19:53,767 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:19:53,768 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 965.8) internal successors, (4829), 5 states have internal predecessors, (4829), 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 4829
[2024-12-02 15:19:53,768 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:19:53,773 INFO  L225             Difference]: With dead ends: 18174
[2024-12-02 15:19:53,773 INFO  L226             Difference]: Without dead ends: 9778
[2024-12-02 15:19:53,776 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 15:19:53,777 INFO  L435           NwaCegarLoop]: 12615 mSDtfsCounter, 25283 mSDsluCounter, 12612 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25283 SdHoareTripleChecker+Valid, 25227 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 15:19:53,777 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [25283 Valid, 25227 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 15:19:53,784 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9778 states.
[2024-12-02 15:19:53,834 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9778 to 9778.
[2024-12-02 15:19:53,841 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9778 states, 9777 states have (on average 1.498721489209369) internal successors, (14653), 9777 states have internal predecessors, (14653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:53,848 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9778 states to 9778 states and 14653 transitions.
[2024-12-02 15:19:53,849 INFO  L78                 Accepts]: Start accepts. Automaton has 9778 states and 14653 transitions. Word has length 4829
[2024-12-02 15:19:53,849 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:19:53,849 INFO  L471      AbstractCegarLoop]: Abstraction has 9778 states and 14653 transitions.
[2024-12-02 15:19:53,850 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 965.8) internal successors, (4829), 5 states have internal predecessors, (4829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:53,850 INFO  L276                IsEmpty]: Start isEmpty. Operand 9778 states and 14653 transitions.
[2024-12-02 15:19:53,938 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4831
[2024-12-02 15:19:53,938 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:19:53,940 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:19:53,940 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-12-02 15:19:53,940 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:19:53,941 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:19:53,942 INFO  L85        PathProgramCache]: Analyzing trace with hash 1385609010, now seen corresponding path program 1 times
[2024-12-02 15:19:53,942 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:19:53,942 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592770637]
[2024-12-02 15:19:53,943 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:19:53,943 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:19:54,572 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:20:01,328 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:20:01,328 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:20:01,328 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592770637]
[2024-12-02 15:20:01,328 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592770637] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:20:01,328 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:20:01,329 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:20:01,329 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983605272]
[2024-12-02 15:20:01,329 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:20:01,332 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:20:01,332 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:20:01,335 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:20:01,336 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:20:01,337 INFO  L87              Difference]: Start difference. First operand 9778 states and 14653 transitions. Second operand  has 4 states, 4 states have (on average 1207.5) internal successors, (4830), 4 states have internal predecessors, (4830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:02,376 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:20:02,376 INFO  L93              Difference]: Finished difference Result 20703 states and 31025 transitions.
[2024-12-02 15:20:02,376 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:20:02,377 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1207.5) internal successors, (4830), 4 states have internal predecessors, (4830), 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 4830
[2024-12-02 15:20:02,378 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:20:02,383 INFO  L225             Difference]: With dead ends: 20703
[2024-12-02 15:20:02,383 INFO  L226             Difference]: Without dead ends: 9778
[2024-12-02 15:20:02,388 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:20:02,389 INFO  L435           NwaCegarLoop]: 12872 mSDtfsCounter, 2426 mSDsluCounter, 25178 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 38050 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 15:20:02,389 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2426 Valid, 38050 Invalid, 1092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 15:20:02,398 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9778 states.
[2024-12-02 15:20:02,462 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9778 to 9778.
[2024-12-02 15:20:02,469 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9778 states, 9777 states have (on average 1.4986192083461185) internal successors, (14652), 9777 states have internal predecessors, (14652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:02,477 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9778 states to 9778 states and 14652 transitions.
[2024-12-02 15:20:02,477 INFO  L78                 Accepts]: Start accepts. Automaton has 9778 states and 14652 transitions. Word has length 4830
[2024-12-02 15:20:02,478 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:20:02,478 INFO  L471      AbstractCegarLoop]: Abstraction has 9778 states and 14652 transitions.
[2024-12-02 15:20:02,479 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1207.5) internal successors, (4830), 4 states have internal predecessors, (4830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:02,479 INFO  L276                IsEmpty]: Start isEmpty. Operand 9778 states and 14652 transitions.
[2024-12-02 15:20:02,592 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4831
[2024-12-02 15:20:02,592 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:20:02,594 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:20:02,594 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 15:20:02,594 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:20:02,595 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:20:02,596 INFO  L85        PathProgramCache]: Analyzing trace with hash 1816504577, now seen corresponding path program 1 times
[2024-12-02 15:20:02,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:20:02,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032230852]
[2024-12-02 15:20:02,597 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:20:02,597 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:20:05,439 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:20:13,731 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:20:13,731 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:20:13,731 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032230852]
[2024-12-02 15:20:13,731 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032230852] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:20:13,732 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:20:13,732 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:20:13,732 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691896353]
[2024-12-02 15:20:13,732 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:20:13,735 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:20:13,736 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:20:13,739 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:20:13,739 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:20:13,740 INFO  L87              Difference]: Start difference. First operand 9778 states and 14652 transitions. Second operand  has 5 states, 5 states have (on average 966.0) internal successors, (4830), 5 states have internal predecessors, (4830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:15,101 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:20:15,102 INFO  L93              Difference]: Finished difference Result 18174 states and 27232 transitions.
[2024-12-02 15:20:15,102 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:20:15,103 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 966.0) internal successors, (4830), 5 states have internal predecessors, (4830), 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 4830
[2024-12-02 15:20:15,103 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:20:15,108 INFO  L225             Difference]: With dead ends: 18174
[2024-12-02 15:20:15,108 INFO  L226             Difference]: Without dead ends: 9778
[2024-12-02 15:20:15,114 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 15:20:15,114 INFO  L435           NwaCegarLoop]: 12313 mSDtfsCounter, 25990 mSDsluCounter, 12308 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25990 SdHoareTripleChecker+Valid, 24621 SdHoareTripleChecker+Invalid, 1412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-12-02 15:20:15,115 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [25990 Valid, 24621 Invalid, 1412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-12-02 15:20:15,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9778 states.
[2024-12-02 15:20:15,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9778 to 9778.
[2024-12-02 15:20:15,206 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9778 states, 9777 states have (on average 1.498516927482868) internal successors, (14651), 9777 states have internal predecessors, (14651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:15,216 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9778 states to 9778 states and 14651 transitions.
[2024-12-02 15:20:15,216 INFO  L78                 Accepts]: Start accepts. Automaton has 9778 states and 14651 transitions. Word has length 4830
[2024-12-02 15:20:15,217 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:20:15,217 INFO  L471      AbstractCegarLoop]: Abstraction has 9778 states and 14651 transitions.
[2024-12-02 15:20:15,218 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 966.0) internal successors, (4830), 5 states have internal predecessors, (4830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:15,218 INFO  L276                IsEmpty]: Start isEmpty. Operand 9778 states and 14651 transitions.
[2024-12-02 15:20:15,416 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4832
[2024-12-02 15:20:15,416 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:20:15,418 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:20:15,419 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-12-02 15:20:15,419 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:20:15,420 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:20:15,421 INFO  L85        PathProgramCache]: Analyzing trace with hash -1457858478, now seen corresponding path program 1 times
[2024-12-02 15:20:15,421 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:20:15,421 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963401889]
[2024-12-02 15:20:15,422 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:20:15,422 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:20:20,756 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:20:30,384 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:20:30,384 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:20:30,384 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963401889]
[2024-12-02 15:20:30,384 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963401889] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:20:30,385 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:20:30,385 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:20:30,385 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592287545]
[2024-12-02 15:20:30,385 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:20:30,388 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:20:30,389 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:20:30,392 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:20:30,392 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:20:30,393 INFO  L87              Difference]: Start difference. First operand 9778 states and 14651 transitions. Second operand  has 5 states, 5 states have (on average 966.2) internal successors, (4831), 5 states have internal predecessors, (4831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:30,627 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:20:30,627 INFO  L93              Difference]: Finished difference Result 18175 states and 27232 transitions.
[2024-12-02 15:20:30,628 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:20:30,629 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 966.2) internal successors, (4831), 5 states have internal predecessors, (4831), 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 4831
[2024-12-02 15:20:30,629 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:20:30,634 INFO  L225             Difference]: With dead ends: 18175
[2024-12-02 15:20:30,635 INFO  L226             Difference]: Without dead ends: 9779
[2024-12-02 15:20:30,639 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 15:20:30,640 INFO  L435           NwaCegarLoop]: 12967 mSDtfsCounter, 12281 mSDsluCounter, 25929 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12281 SdHoareTripleChecker+Valid, 38896 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:20:30,640 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12281 Valid, 38896 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:20:30,647 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9779 states.
[2024-12-02 15:20:30,698 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 9779.
[2024-12-02 15:20:30,704 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9779 states, 9778 states have (on average 1.4984659439558192) internal successors, (14652), 9778 states have internal predecessors, (14652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:30,712 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9779 states to 9779 states and 14652 transitions.
[2024-12-02 15:20:30,712 INFO  L78                 Accepts]: Start accepts. Automaton has 9779 states and 14652 transitions. Word has length 4831
[2024-12-02 15:20:30,713 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:20:30,713 INFO  L471      AbstractCegarLoop]: Abstraction has 9779 states and 14652 transitions.
[2024-12-02 15:20:30,714 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 966.2) internal successors, (4831), 5 states have internal predecessors, (4831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:30,714 INFO  L276                IsEmpty]: Start isEmpty. Operand 9779 states and 14652 transitions.
[2024-12-02 15:20:30,964 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4832
[2024-12-02 15:20:30,964 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:20:30,965 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:20:30,965 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-12-02 15:20:30,965 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:20:30,966 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:20:30,967 INFO  L85        PathProgramCache]: Analyzing trace with hash 1056951314, now seen corresponding path program 1 times
[2024-12-02 15:20:30,967 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:20:30,967 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716365345]
[2024-12-02 15:20:30,968 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:20:30,968 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:20:36,539 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:20:45,452 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:20:45,452 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:20:45,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716365345]
[2024-12-02 15:20:45,452 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716365345] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:20:45,452 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:20:45,453 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:20:45,453 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646483550]
[2024-12-02 15:20:45,453 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:20:45,456 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:20:45,456 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:20:45,458 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:20:45,458 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:20:45,458 INFO  L87              Difference]: Start difference. First operand 9779 states and 14652 transitions. Second operand  has 5 states, 5 states have (on average 966.2) internal successors, (4831), 5 states have internal predecessors, (4831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:46,381 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:20:46,381 INFO  L93              Difference]: Finished difference Result 18176 states and 27232 transitions.
[2024-12-02 15:20:46,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:20:46,383 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 966.2) internal successors, (4831), 5 states have internal predecessors, (4831), 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 4831
[2024-12-02 15:20:46,383 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:20:46,387 INFO  L225             Difference]: With dead ends: 18176
[2024-12-02 15:20:46,387 INFO  L226             Difference]: Without dead ends: 9779
[2024-12-02 15:20:46,390 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 15:20:46,391 INFO  L435           NwaCegarLoop]: 12613 mSDtfsCounter, 12827 mSDsluCounter, 12611 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12827 SdHoareTripleChecker+Valid, 25224 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 15:20:46,391 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12827 Valid, 25224 Invalid, 803 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 802 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 15:20:46,397 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9779 states.
[2024-12-02 15:20:46,443 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 9779.
[2024-12-02 15:20:46,449 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9779 states, 9778 states have (on average 1.4983636735528738) internal successors, (14651), 9778 states have internal predecessors, (14651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:46,457 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9779 states to 9779 states and 14651 transitions.
[2024-12-02 15:20:46,457 INFO  L78                 Accepts]: Start accepts. Automaton has 9779 states and 14651 transitions. Word has length 4831
[2024-12-02 15:20:46,458 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:20:46,458 INFO  L471      AbstractCegarLoop]: Abstraction has 9779 states and 14651 transitions.
[2024-12-02 15:20:46,458 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 966.2) internal successors, (4831), 5 states have internal predecessors, (4831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:46,458 INFO  L276                IsEmpty]: Start isEmpty. Operand 9779 states and 14651 transitions.
[2024-12-02 15:20:46,545 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4833
[2024-12-02 15:20:46,546 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:20:46,547 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:20:46,547 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-12-02 15:20:46,547 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:20:46,548 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:20:46,549 INFO  L85        PathProgramCache]: Analyzing trace with hash 879981070, now seen corresponding path program 1 times
[2024-12-02 15:20:46,549 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:20:46,549 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166351723]
[2024-12-02 15:20:46,549 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:20:46,549 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:20:47,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:20:53,596 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:20:53,597 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:20:53,597 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166351723]
[2024-12-02 15:20:53,597 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166351723] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:20:53,597 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:20:53,597 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:20:53,597 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920956999]
[2024-12-02 15:20:53,597 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:20:53,599 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:20:53,599 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:20:53,601 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:20:53,601 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:20:53,602 INFO  L87              Difference]: Start difference. First operand 9779 states and 14651 transitions. Second operand  has 4 states, 4 states have (on average 1208.0) internal successors, (4832), 4 states have internal predecessors, (4832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:54,639 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:20:54,639 INFO  L93              Difference]: Finished difference Result 20351 states and 30490 transitions.
[2024-12-02 15:20:54,639 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:20:54,640 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1208.0) internal successors, (4832), 4 states have internal predecessors, (4832), 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 4832
[2024-12-02 15:20:54,642 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:20:54,647 INFO  L225             Difference]: With dead ends: 20351
[2024-12-02 15:20:54,647 INFO  L226             Difference]: Without dead ends: 9779
[2024-12-02 15:20:54,653 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:20:54,653 INFO  L435           NwaCegarLoop]: 12876 mSDtfsCounter, 2078 mSDsluCounter, 25181 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 38057 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 15:20:54,654 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 38057 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 984 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 15:20:54,662 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9779 states.
[2024-12-02 15:20:54,724 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 9779.
[2024-12-02 15:20:54,731 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9779 states, 9778 states have (on average 1.4982614031499284) internal successors, (14650), 9778 states have internal predecessors, (14650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:54,741 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9779 states to 9779 states and 14650 transitions.
[2024-12-02 15:20:54,741 INFO  L78                 Accepts]: Start accepts. Automaton has 9779 states and 14650 transitions. Word has length 4832
[2024-12-02 15:20:54,742 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:20:54,742 INFO  L471      AbstractCegarLoop]: Abstraction has 9779 states and 14650 transitions.
[2024-12-02 15:20:54,743 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1208.0) internal successors, (4832), 4 states have internal predecessors, (4832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:54,743 INFO  L276                IsEmpty]: Start isEmpty. Operand 9779 states and 14650 transitions.
[2024-12-02 15:20:55,005 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4833
[2024-12-02 15:20:55,005 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:20:55,008 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:20:55,008 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-12-02 15:20:55,008 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:20:55,009 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:20:55,010 INFO  L85        PathProgramCache]: Analyzing trace with hash -994085475, now seen corresponding path program 1 times
[2024-12-02 15:20:55,010 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:20:55,010 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540165344]
[2024-12-02 15:20:55,010 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:20:55,010 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:20:57,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:21:06,032 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:21:06,032 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:21:06,032 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540165344]
[2024-12-02 15:21:06,032 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540165344] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:21:06,032 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:21:06,033 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:21:06,033 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84637553]
[2024-12-02 15:21:06,033 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:21:06,037 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:21:06,037 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:21:06,041 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:21:06,041 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:21:06,042 INFO  L87              Difference]: Start difference. First operand 9779 states and 14650 transitions. Second operand  has 5 states, 5 states have (on average 966.4) internal successors, (4832), 5 states have internal predecessors, (4832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:07,374 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:21:07,374 INFO  L93              Difference]: Finished difference Result 18176 states and 27228 transitions.
[2024-12-02 15:21:07,374 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:21:07,375 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 966.4) internal successors, (4832), 5 states have internal predecessors, (4832), 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 4832
[2024-12-02 15:21:07,376 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:21:07,382 INFO  L225             Difference]: With dead ends: 18176
[2024-12-02 15:21:07,383 INFO  L226             Difference]: Without dead ends: 9779
[2024-12-02 15:21:07,387 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 15:21:07,388 INFO  L435           NwaCegarLoop]: 12312 mSDtfsCounter, 25636 mSDsluCounter, 12306 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25636 SdHoareTripleChecker+Valid, 24618 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-12-02 15:21:07,388 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [25636 Valid, 24618 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-12-02 15:21:07,398 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9779 states.
[2024-12-02 15:21:07,469 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9779 to 9779.
[2024-12-02 15:21:07,475 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9779 states, 9778 states have (on average 1.498159132746983) internal successors, (14649), 9778 states have internal predecessors, (14649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:07,483 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9779 states to 9779 states and 14649 transitions.
[2024-12-02 15:21:07,483 INFO  L78                 Accepts]: Start accepts. Automaton has 9779 states and 14649 transitions. Word has length 4832
[2024-12-02 15:21:07,484 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:21:07,484 INFO  L471      AbstractCegarLoop]: Abstraction has 9779 states and 14649 transitions.
[2024-12-02 15:21:07,485 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 966.4) internal successors, (4832), 5 states have internal predecessors, (4832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:07,485 INFO  L276                IsEmpty]: Start isEmpty. Operand 9779 states and 14649 transitions.
[2024-12-02 15:21:07,572 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4834
[2024-12-02 15:21:07,572 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:21:07,573 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:21:07,573 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-12-02 15:21:07,573 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:21:07,574 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:21:07,574 INFO  L85        PathProgramCache]: Analyzing trace with hash 844837386, now seen corresponding path program 1 times
[2024-12-02 15:21:07,574 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:21:07,575 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152233069]
[2024-12-02 15:21:07,575 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:21:07,575 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:21:13,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:21:22,254 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:21:22,254 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:21:22,254 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152233069]
[2024-12-02 15:21:22,254 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152233069] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:21:22,254 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:21:22,254 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:21:22,255 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779395827]
[2024-12-02 15:21:22,255 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:21:22,257 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:21:22,257 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:21:22,259 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:21:22,259 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:21:22,260 INFO  L87              Difference]: Start difference. First operand 9779 states and 14649 transitions. Second operand  has 5 states, 5 states have (on average 966.6) internal successors, (4833), 5 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:22,475 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:21:22,475 INFO  L93              Difference]: Finished difference Result 18177 states and 27228 transitions.
[2024-12-02 15:21:22,476 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:21:22,476 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 966.6) internal successors, (4833), 5 states have internal predecessors, (4833), 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 4833
[2024-12-02 15:21:22,477 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:21:22,483 INFO  L225             Difference]: With dead ends: 18177
[2024-12-02 15:21:22,483 INFO  L226             Difference]: Without dead ends: 9780
[2024-12-02 15:21:22,488 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 15:21:22,489 INFO  L435           NwaCegarLoop]: 12964 mSDtfsCounter, 12098 mSDsluCounter, 25923 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12098 SdHoareTripleChecker+Valid, 38887 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:21:22,489 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12098 Valid, 38887 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:21:22,497 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9780 states.
[2024-12-02 15:21:22,548 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9780 to 9780.
[2024-12-02 15:21:22,554 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9780 states, 9779 states have (on average 1.4981081910215768) internal successors, (14650), 9779 states have internal predecessors, (14650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:22,562 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9780 states to 9780 states and 14650 transitions.
[2024-12-02 15:21:22,562 INFO  L78                 Accepts]: Start accepts. Automaton has 9780 states and 14650 transitions. Word has length 4833
[2024-12-02 15:21:22,563 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:21:22,563 INFO  L471      AbstractCegarLoop]: Abstraction has 9780 states and 14650 transitions.
[2024-12-02 15:21:22,564 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 966.6) internal successors, (4833), 5 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:22,564 INFO  L276                IsEmpty]: Start isEmpty. Operand 9780 states and 14650 transitions.
[2024-12-02 15:21:22,706 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4834
[2024-12-02 15:21:22,707 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:21:22,708 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:21:22,708 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-12-02 15:21:22,708 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:21:22,709 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:21:22,709 INFO  L85        PathProgramCache]: Analyzing trace with hash -895183414, now seen corresponding path program 1 times
[2024-12-02 15:21:22,709 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:21:22,709 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487086712]
[2024-12-02 15:21:22,710 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:21:22,710 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:21:28,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:21:36,353 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:21:36,353 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:21:36,353 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487086712]
[2024-12-02 15:21:36,353 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487086712] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:21:36,353 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:21:36,353 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:21:36,353 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366804423]
[2024-12-02 15:21:36,353 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:21:36,356 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:21:36,356 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:21:36,360 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:21:36,360 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:21:36,361 INFO  L87              Difference]: Start difference. First operand 9780 states and 14650 transitions. Second operand  has 5 states, 5 states have (on average 966.6) internal successors, (4833), 5 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:37,131 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:21:37,131 INFO  L93              Difference]: Finished difference Result 18178 states and 27228 transitions.
[2024-12-02 15:21:37,132 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:21:37,132 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 966.6) internal successors, (4833), 5 states have internal predecessors, (4833), 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 4833
[2024-12-02 15:21:37,133 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:21:37,137 INFO  L225             Difference]: With dead ends: 18178
[2024-12-02 15:21:37,137 INFO  L226             Difference]: Without dead ends: 9780
[2024-12-02 15:21:37,140 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 15:21:37,140 INFO  L435           NwaCegarLoop]: 12611 mSDtfsCounter, 12790 mSDsluCounter, 12609 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12790 SdHoareTripleChecker+Valid, 25220 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-12-02 15:21:37,140 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12790 Valid, 25220 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-12-02 15:21:37,147 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9780 states.
[2024-12-02 15:21:37,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9780 to 9780.
[2024-12-02 15:21:37,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9780 states, 9779 states have (on average 1.4980059310767972) internal successors, (14649), 9779 states have internal predecessors, (14649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:37,216 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9780 states to 9780 states and 14649 transitions.
[2024-12-02 15:21:37,216 INFO  L78                 Accepts]: Start accepts. Automaton has 9780 states and 14649 transitions. Word has length 4833
[2024-12-02 15:21:37,217 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:21:37,217 INFO  L471      AbstractCegarLoop]: Abstraction has 9780 states and 14649 transitions.
[2024-12-02 15:21:37,218 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 966.6) internal successors, (4833), 5 states have internal predecessors, (4833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:37,218 INFO  L276                IsEmpty]: Start isEmpty. Operand 9780 states and 14649 transitions.
[2024-12-02 15:21:37,309 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4835
[2024-12-02 15:21:37,309 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:21:37,310 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:21:37,310 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-12-02 15:21:37,310 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:21:37,311 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:21:37,312 INFO  L85        PathProgramCache]: Analyzing trace with hash -1756885655, now seen corresponding path program 1 times
[2024-12-02 15:21:37,312 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:21:37,313 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313031397]
[2024-12-02 15:21:37,313 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:21:37,313 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:21:37,947 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:21:44,849 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:21:44,849 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:21:44,849 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313031397]
[2024-12-02 15:21:44,849 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313031397] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:21:44,849 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:21:44,849 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:21:44,849 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820353607]
[2024-12-02 15:21:44,849 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:21:44,852 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:21:44,852 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:21:44,855 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:21:44,855 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:21:44,856 INFO  L87              Difference]: Start difference. First operand 9780 states and 14649 transitions. Second operand  has 4 states, 4 states have (on average 1208.5) internal successors, (4834), 4 states have internal predecessors, (4834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:46,008 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:21:46,008 INFO  L93              Difference]: Finished difference Result 20289 states and 30390 transitions.
[2024-12-02 15:21:46,009 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:21:46,009 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1208.5) internal successors, (4834), 4 states have internal predecessors, (4834), 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 4834
[2024-12-02 15:21:46,010 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:21:46,015 INFO  L225             Difference]: With dead ends: 20289
[2024-12-02 15:21:46,015 INFO  L226             Difference]: Without dead ends: 9780
[2024-12-02 15:21:46,019 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:21:46,020 INFO  L435           NwaCegarLoop]: 12879 mSDtfsCounter, 2018 mSDsluCounter, 25183 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 38062 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:21:46,020 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2018 Valid, 38062 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-12-02 15:21:46,026 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9780 states.
[2024-12-02 15:21:46,074 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9780 to 9780.
[2024-12-02 15:21:46,080 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9780 states, 9779 states have (on average 1.4979036711320175) internal successors, (14648), 9779 states have internal predecessors, (14648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:46,088 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9780 states to 9780 states and 14648 transitions.
[2024-12-02 15:21:46,089 INFO  L78                 Accepts]: Start accepts. Automaton has 9780 states and 14648 transitions. Word has length 4834
[2024-12-02 15:21:46,089 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:21:46,089 INFO  L471      AbstractCegarLoop]: Abstraction has 9780 states and 14648 transitions.
[2024-12-02 15:21:46,090 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1208.5) internal successors, (4834), 4 states have internal predecessors, (4834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:46,090 INFO  L276                IsEmpty]: Start isEmpty. Operand 9780 states and 14648 transitions.
[2024-12-02 15:21:46,181 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4835
[2024-12-02 15:21:46,181 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:21:46,182 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:21:46,182 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-12-02 15:21:46,182 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:21:46,184 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:21:46,185 INFO  L85        PathProgramCache]: Analyzing trace with hash 1271794936, now seen corresponding path program 1 times
[2024-12-02 15:21:46,185 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:21:46,185 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858000927]
[2024-12-02 15:21:46,185 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:21:46,185 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:21:48,977 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:21:57,390 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:21:57,390 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:21:57,390 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858000927]
[2024-12-02 15:21:57,390 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858000927] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:21:57,391 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:21:57,391 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:21:57,391 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518082020]
[2024-12-02 15:21:57,391 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:21:57,393 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:21:57,393 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:21:57,395 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:21:57,395 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:21:57,396 INFO  L87              Difference]: Start difference. First operand 9780 states and 14648 transitions. Second operand  has 5 states, 5 states have (on average 966.8) internal successors, (4834), 5 states have internal predecessors, (4834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:58,446 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:21:58,446 INFO  L93              Difference]: Finished difference Result 18178 states and 27224 transitions.
[2024-12-02 15:21:58,447 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:21:58,447 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 966.8) internal successors, (4834), 5 states have internal predecessors, (4834), 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 4834
[2024-12-02 15:21:58,448 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:21:58,453 INFO  L225             Difference]: With dead ends: 18178
[2024-12-02 15:21:58,454 INFO  L226             Difference]: Without dead ends: 9780
[2024-12-02 15:21:58,458 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 15:21:58,458 INFO  L435           NwaCegarLoop]: 12311 mSDtfsCounter, 12786 mSDsluCounter, 12306 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12786 SdHoareTripleChecker+Valid, 24617 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 15:21:58,459 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12786 Valid, 24617 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 15:21:58,466 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9780 states.
[2024-12-02 15:21:58,516 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9780 to 9780.
[2024-12-02 15:21:58,523 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9780 states, 9779 states have (on average 1.497801411187238) internal successors, (14647), 9779 states have internal predecessors, (14647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:58,531 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9780 states to 9780 states and 14647 transitions.
[2024-12-02 15:21:58,531 INFO  L78                 Accepts]: Start accepts. Automaton has 9780 states and 14647 transitions. Word has length 4834
[2024-12-02 15:21:58,531 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:21:58,531 INFO  L471      AbstractCegarLoop]: Abstraction has 9780 states and 14647 transitions.
[2024-12-02 15:21:58,532 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 966.8) internal successors, (4834), 5 states have internal predecessors, (4834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:58,532 INFO  L276                IsEmpty]: Start isEmpty. Operand 9780 states and 14647 transitions.
[2024-12-02 15:21:58,713 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4836
[2024-12-02 15:21:58,713 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:21:58,714 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:21:58,715 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-12-02 15:21:58,715 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:21:58,715 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:21:58,716 INFO  L85        PathProgramCache]: Analyzing trace with hash -1301147614, now seen corresponding path program 1 times
[2024-12-02 15:21:58,716 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:21:58,716 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152086304]
[2024-12-02 15:21:58,716 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:21:58,716 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:22:04,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:22:13,262 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:22:13,262 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:22:13,262 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152086304]
[2024-12-02 15:22:13,262 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152086304] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:22:13,262 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:22:13,263 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:22:13,263 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917013653]
[2024-12-02 15:22:13,263 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:22:13,265 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:22:13,265 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:22:13,266 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:22:13,266 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:22:13,267 INFO  L87              Difference]: Start difference. First operand 9780 states and 14647 transitions. Second operand  has 5 states, 5 states have (on average 967.0) internal successors, (4835), 5 states have internal predecessors, (4835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:13,778 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:22:13,778 INFO  L93              Difference]: Finished difference Result 18179 states and 27224 transitions.
[2024-12-02 15:22:13,778 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:22:13,779 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 967.0) internal successors, (4835), 5 states have internal predecessors, (4835), 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 4835
[2024-12-02 15:22:13,780 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:22:13,786 INFO  L225             Difference]: With dead ends: 18179
[2024-12-02 15:22:13,786 INFO  L226             Difference]: Without dead ends: 9781
[2024-12-02 15:22:13,790 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 15:22:13,793 INFO  L435           NwaCegarLoop]: 12961 mSDtfsCounter, 12061 mSDsluCounter, 25917 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12061 SdHoareTripleChecker+Valid, 38878 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:22:13,793 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12061 Valid, 38878 Invalid, 148 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:22:13,802 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9781 states.
[2024-12-02 15:22:13,851 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 9781.
[2024-12-02 15:22:13,858 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9781 states, 9780 states have (on average 1.4977505112474438) internal successors, (14648), 9780 states have internal predecessors, (14648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:13,866 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9781 states to 9781 states and 14648 transitions.
[2024-12-02 15:22:13,866 INFO  L78                 Accepts]: Start accepts. Automaton has 9781 states and 14648 transitions. Word has length 4835
[2024-12-02 15:22:13,866 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:22:13,866 INFO  L471      AbstractCegarLoop]: Abstraction has 9781 states and 14648 transitions.
[2024-12-02 15:22:13,867 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 967.0) internal successors, (4835), 5 states have internal predecessors, (4835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:13,867 INFO  L276                IsEmpty]: Start isEmpty. Operand 9781 states and 14648 transitions.
[2024-12-02 15:22:13,955 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4836
[2024-12-02 15:22:13,955 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:22:13,956 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:22:13,956 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-12-02 15:22:13,956 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:22:13,957 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:22:13,957 INFO  L85        PathProgramCache]: Analyzing trace with hash -1690668062, now seen corresponding path program 1 times
[2024-12-02 15:22:13,958 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:22:13,958 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77858587]
[2024-12-02 15:22:13,958 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:22:13,958 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:22:19,381 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:22:27,907 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:22:27,908 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:22:27,908 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77858587]
[2024-12-02 15:22:27,908 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77858587] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:22:27,908 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:22:27,909 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:22:27,909 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981373334]
[2024-12-02 15:22:27,909 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:22:27,911 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:22:27,911 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:22:27,912 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:22:27,912 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:22:27,913 INFO  L87              Difference]: Start difference. First operand 9781 states and 14648 transitions. Second operand  has 5 states, 5 states have (on average 967.0) internal successors, (4835), 5 states have internal predecessors, (4835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:28,564 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:22:28,565 INFO  L93              Difference]: Finished difference Result 18180 states and 27224 transitions.
[2024-12-02 15:22:28,565 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:22:28,566 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 967.0) internal successors, (4835), 5 states have internal predecessors, (4835), 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 4835
[2024-12-02 15:22:28,567 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:22:28,572 INFO  L225             Difference]: With dead ends: 18180
[2024-12-02 15:22:28,572 INFO  L226             Difference]: Without dead ends: 9781
[2024-12-02 15:22:28,577 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 15:22:28,577 INFO  L435           NwaCegarLoop]: 12609 mSDtfsCounter, 12701 mSDsluCounter, 12607 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12701 SdHoareTripleChecker+Valid, 25216 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 15:22:28,577 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12701 Valid, 25216 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 15:22:28,584 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9781 states.
[2024-12-02 15:22:28,635 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 9781.
[2024-12-02 15:22:28,642 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9781 states, 9780 states have (on average 1.4976482617586913) internal successors, (14647), 9780 states have internal predecessors, (14647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:28,650 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9781 states to 9781 states and 14647 transitions.
[2024-12-02 15:22:28,650 INFO  L78                 Accepts]: Start accepts. Automaton has 9781 states and 14647 transitions. Word has length 4835
[2024-12-02 15:22:28,650 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:22:28,650 INFO  L471      AbstractCegarLoop]: Abstraction has 9781 states and 14647 transitions.
[2024-12-02 15:22:28,651 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 967.0) internal successors, (4835), 5 states have internal predecessors, (4835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:28,651 INFO  L276                IsEmpty]: Start isEmpty. Operand 9781 states and 14647 transitions.
[2024-12-02 15:22:28,921 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4837
[2024-12-02 15:22:28,921 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:22:28,922 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:22:28,923 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-12-02 15:22:28,923 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:22:28,923 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:22:28,924 INFO  L85        PathProgramCache]: Analyzing trace with hash 396981486, now seen corresponding path program 1 times
[2024-12-02 15:22:28,924 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:22:28,924 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559996685]
[2024-12-02 15:22:28,924 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:22:28,924 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:22:29,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:22:35,861 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:22:35,861 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:22:35,861 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559996685]
[2024-12-02 15:22:35,861 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559996685] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:22:35,861 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:22:35,862 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:22:35,862 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71356062]
[2024-12-02 15:22:35,862 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:22:35,864 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:22:35,864 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:22:35,865 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:22:35,865 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:22:35,866 INFO  L87              Difference]: Start difference. First operand 9781 states and 14647 transitions. Second operand  has 4 states, 4 states have (on average 1209.0) internal successors, (4836), 4 states have internal predecessors, (4836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:37,156 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:22:37,156 INFO  L93              Difference]: Finished difference Result 20125 states and 30137 transitions.
[2024-12-02 15:22:37,157 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:22:37,157 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1209.0) internal successors, (4836), 4 states have internal predecessors, (4836), 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 4836
[2024-12-02 15:22:37,159 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:22:37,165 INFO  L225             Difference]: With dead ends: 20125
[2024-12-02 15:22:37,165 INFO  L226             Difference]: Without dead ends: 9781
[2024-12-02 15:22:37,170 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:22:37,171 INFO  L435           NwaCegarLoop]: 12884 mSDtfsCounter, 1858 mSDsluCounter, 25187 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1858 SdHoareTripleChecker+Valid, 38071 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-12-02 15:22:37,171 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1858 Valid, 38071 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-12-02 15:22:37,182 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9781 states.
[2024-12-02 15:22:37,272 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 9781.
[2024-12-02 15:22:37,281 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9781 states, 9780 states have (on average 1.4975460122699387) internal successors, (14646), 9780 states have internal predecessors, (14646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:37,295 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9781 states to 9781 states and 14646 transitions.
[2024-12-02 15:22:37,296 INFO  L78                 Accepts]: Start accepts. Automaton has 9781 states and 14646 transitions. Word has length 4836
[2024-12-02 15:22:37,297 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:22:37,297 INFO  L471      AbstractCegarLoop]: Abstraction has 9781 states and 14646 transitions.
[2024-12-02 15:22:37,298 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1209.0) internal successors, (4836), 4 states have internal predecessors, (4836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:37,298 INFO  L276                IsEmpty]: Start isEmpty. Operand 9781 states and 14646 transitions.
[2024-12-02 15:22:37,495 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4837
[2024-12-02 15:22:37,495 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:22:37,496 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:22:37,496 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-12-02 15:22:37,496 INFO  L396      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:22:37,497 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:22:37,498 INFO  L85        PathProgramCache]: Analyzing trace with hash 1482263037, now seen corresponding path program 1 times
[2024-12-02 15:22:37,498 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:22:37,498 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108078601]
[2024-12-02 15:22:37,498 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:22:37,498 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:22:40,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:22:48,534 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:22:48,534 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:22:48,535 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108078601]
[2024-12-02 15:22:48,535 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108078601] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:22:48,535 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:22:48,535 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:22:48,535 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242250304]
[2024-12-02 15:22:48,535 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:22:48,537 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:22:48,537 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:22:48,539 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:22:48,539 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:22:48,540 INFO  L87              Difference]: Start difference. First operand 9781 states and 14646 transitions. Second operand  has 5 states, 5 states have (on average 967.2) internal successors, (4836), 5 states have internal predecessors, (4836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:49,755 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:22:49,755 INFO  L93              Difference]: Finished difference Result 18180 states and 27220 transitions.
[2024-12-02 15:22:49,755 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:22:49,756 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 967.2) internal successors, (4836), 5 states have internal predecessors, (4836), 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 4836
[2024-12-02 15:22:49,757 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:22:49,762 INFO  L225             Difference]: With dead ends: 18180
[2024-12-02 15:22:49,762 INFO  L226             Difference]: Without dead ends: 9781
[2024-12-02 15:22:49,766 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 15:22:49,767 INFO  L435           NwaCegarLoop]: 12310 mSDtfsCounter, 25378 mSDsluCounter, 12304 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25378 SdHoareTripleChecker+Valid, 24614 SdHoareTripleChecker+Invalid, 1400 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:22:49,767 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [25378 Valid, 24614 Invalid, 1400 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-12-02 15:22:49,773 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9781 states.
[2024-12-02 15:22:49,820 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 9781.
[2024-12-02 15:22:49,826 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9781 states, 9780 states have (on average 1.497443762781186) internal successors, (14645), 9780 states have internal predecessors, (14645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:49,834 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9781 states to 9781 states and 14645 transitions.
[2024-12-02 15:22:49,834 INFO  L78                 Accepts]: Start accepts. Automaton has 9781 states and 14645 transitions. Word has length 4836
[2024-12-02 15:22:49,834 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:22:49,835 INFO  L471      AbstractCegarLoop]: Abstraction has 9781 states and 14645 transitions.
[2024-12-02 15:22:49,835 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 967.2) internal successors, (4836), 5 states have internal predecessors, (4836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:22:49,835 INFO  L276                IsEmpty]: Start isEmpty. Operand 9781 states and 14645 transitions.
[2024-12-02 15:22:49,981 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4838
[2024-12-02 15:22:49,981 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:22:49,982 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:22:49,982 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-12-02 15:22:49,982 INFO  L396      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:22:49,983 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:22:49,983 INFO  L85        PathProgramCache]: Analyzing trace with hash 2084751322, now seen corresponding path program 1 times
[2024-12-02 15:22:49,984 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:22:49,984 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141691517]
[2024-12-02 15:22:49,984 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:22:49,984 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:22:55,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:23:03,808 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:23:03,808 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:23:03,808 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141691517]
[2024-12-02 15:23:03,808 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141691517] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:23:03,808 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:23:03,808 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:23:03,808 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008080305]
[2024-12-02 15:23:03,808 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:23:03,810 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:23:03,810 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:23:03,812 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:23:03,812 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:23:03,813 INFO  L87              Difference]: Start difference. First operand 9781 states and 14645 transitions. Second operand  has 5 states, 5 states have (on average 967.4) internal successors, (4837), 5 states have internal predecessors, (4837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:04,061 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:23:04,062 INFO  L93              Difference]: Finished difference Result 18181 states and 27220 transitions.
[2024-12-02 15:23:04,062 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:23:04,063 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 967.4) internal successors, (4837), 5 states have internal predecessors, (4837), 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 4837
[2024-12-02 15:23:04,063 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:23:04,069 INFO  L225             Difference]: With dead ends: 18181
[2024-12-02 15:23:04,069 INFO  L226             Difference]: Without dead ends: 9782
[2024-12-02 15:23:04,073 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 15:23:04,074 INFO  L435           NwaCegarLoop]: 12958 mSDtfsCounter, 11972 mSDsluCounter, 25911 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11972 SdHoareTripleChecker+Valid, 38869 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:23:04,074 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11972 Valid, 38869 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:23:04,081 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9782 states.
[2024-12-02 15:23:04,131 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9782 to 9782.
[2024-12-02 15:23:04,137 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9782 states, 9781 states have (on average 1.4973929046109804) internal successors, (14646), 9781 states have internal predecessors, (14646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:04,145 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 14646 transitions.
[2024-12-02 15:23:04,145 INFO  L78                 Accepts]: Start accepts. Automaton has 9782 states and 14646 transitions. Word has length 4837
[2024-12-02 15:23:04,146 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:23:04,146 INFO  L471      AbstractCegarLoop]: Abstraction has 9782 states and 14646 transitions.
[2024-12-02 15:23:04,146 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 967.4) internal successors, (4837), 5 states have internal predecessors, (4837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:04,147 INFO  L276                IsEmpty]: Start isEmpty. Operand 9782 states and 14646 transitions.
[2024-12-02 15:23:04,391 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4838
[2024-12-02 15:23:04,391 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:23:04,392 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:23:04,392 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2024-12-02 15:23:04,392 INFO  L396      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:23:04,393 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:23:04,393 INFO  L85        PathProgramCache]: Analyzing trace with hash 214993818, now seen corresponding path program 1 times
[2024-12-02 15:23:04,393 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:23:04,394 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352519195]
[2024-12-02 15:23:04,394 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:23:04,394 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:23:09,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:23:19,103 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:23:19,103 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:23:19,103 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352519195]
[2024-12-02 15:23:19,103 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352519195] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:23:19,103 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:23:19,104 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:23:19,104 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006886001]
[2024-12-02 15:23:19,104 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:23:19,107 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:23:19,108 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:23:19,111 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:23:19,111 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:23:19,112 INFO  L87              Difference]: Start difference. First operand 9782 states and 14646 transitions. Second operand  has 5 states, 5 states have (on average 967.4) internal successors, (4837), 5 states have internal predecessors, (4837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:19,786 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:23:19,786 INFO  L93              Difference]: Finished difference Result 18182 states and 27220 transitions.
[2024-12-02 15:23:19,787 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:23:19,788 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 967.4) internal successors, (4837), 5 states have internal predecessors, (4837), 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 4837
[2024-12-02 15:23:19,789 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:23:19,794 INFO  L225             Difference]: With dead ends: 18182
[2024-12-02 15:23:19,794 INFO  L226             Difference]: Without dead ends: 9782
[2024-12-02 15:23:19,799 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 15:23:19,799 INFO  L435           NwaCegarLoop]: 12607 mSDtfsCounter, 12656 mSDsluCounter, 12605 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12656 SdHoareTripleChecker+Valid, 25212 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 15:23:19,799 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12656 Valid, 25212 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 15:23:19,807 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9782 states.
[2024-12-02 15:23:19,865 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9782 to 9782.
[2024-12-02 15:23:19,872 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9782 states, 9781 states have (on average 1.497290665576117) internal successors, (14645), 9781 states have internal predecessors, (14645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:19,882 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 14645 transitions.
[2024-12-02 15:23:19,882 INFO  L78                 Accepts]: Start accepts. Automaton has 9782 states and 14645 transitions. Word has length 4837
[2024-12-02 15:23:19,882 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:23:19,883 INFO  L471      AbstractCegarLoop]: Abstraction has 9782 states and 14645 transitions.
[2024-12-02 15:23:19,883 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 967.4) internal successors, (4837), 5 states have internal predecessors, (4837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:19,883 INFO  L276                IsEmpty]: Start isEmpty. Operand 9782 states and 14645 transitions.
[2024-12-02 15:23:20,079 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4839
[2024-12-02 15:23:20,079 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:23:20,080 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:23:20,080 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2024-12-02 15:23:20,080 INFO  L396      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:23:20,081 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:23:20,081 INFO  L85        PathProgramCache]: Analyzing trace with hash 1549181229, now seen corresponding path program 1 times
[2024-12-02 15:23:20,081 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:23:20,082 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127775237]
[2024-12-02 15:23:20,082 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:23:20,082 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:23:20,710 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:23:27,045 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:23:27,046 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:23:27,046 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127775237]
[2024-12-02 15:23:27,046 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127775237] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:23:27,046 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:23:27,047 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:23:27,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568644863]
[2024-12-02 15:23:27,047 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:23:27,049 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:23:27,049 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:23:27,050 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:23:27,050 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:23:27,051 INFO  L87              Difference]: Start difference. First operand 9782 states and 14645 transitions. Second operand  has 4 states, 4 states have (on average 1209.5) internal successors, (4838), 4 states have internal predecessors, (4838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:28,004 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:23:28,004 INFO  L93              Difference]: Finished difference Result 20047 states and 30013 transitions.
[2024-12-02 15:23:28,004 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:23:28,005 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1209.5) internal successors, (4838), 4 states have internal predecessors, (4838), 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 4838
[2024-12-02 15:23:28,007 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:23:28,013 INFO  L225             Difference]: With dead ends: 20047
[2024-12-02 15:23:28,013 INFO  L226             Difference]: Without dead ends: 9782
[2024-12-02 15:23:28,017 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:23:28,018 INFO  L435           NwaCegarLoop]: 12887 mSDtfsCounter, 1782 mSDsluCounter, 25189 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1782 SdHoareTripleChecker+Valid, 38076 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-02 15:23:28,018 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1782 Valid, 38076 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-12-02 15:23:28,025 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9782 states.
[2024-12-02 15:23:28,075 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9782 to 9782.
[2024-12-02 15:23:28,082 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9782 states, 9781 states have (on average 1.4971884265412534) internal successors, (14644), 9781 states have internal predecessors, (14644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:28,090 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 14644 transitions.
[2024-12-02 15:23:28,090 INFO  L78                 Accepts]: Start accepts. Automaton has 9782 states and 14644 transitions. Word has length 4838
[2024-12-02 15:23:28,091 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:23:28,091 INFO  L471      AbstractCegarLoop]: Abstraction has 9782 states and 14644 transitions.
[2024-12-02 15:23:28,092 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1209.5) internal successors, (4838), 4 states have internal predecessors, (4838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:28,092 INFO  L276                IsEmpty]: Start isEmpty. Operand 9782 states and 14644 transitions.
[2024-12-02 15:23:28,179 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4839
[2024-12-02 15:23:28,179 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:23:28,180 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:23:28,180 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2024-12-02 15:23:28,180 INFO  L396      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:23:28,181 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:23:28,182 INFO  L85        PathProgramCache]: Analyzing trace with hash 1752445244, now seen corresponding path program 1 times
[2024-12-02 15:23:28,182 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:23:28,182 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404725002]
[2024-12-02 15:23:28,182 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:23:28,182 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:23:30,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:23:39,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:23:39,097 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:23:39,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404725002]
[2024-12-02 15:23:39,097 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404725002] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:23:39,097 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:23:39,097 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:23:39,097 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38414677]
[2024-12-02 15:23:39,097 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:23:39,100 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:23:39,100 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:23:39,104 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:23:39,104 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:23:39,105 INFO  L87              Difference]: Start difference. First operand 9782 states and 14644 transitions. Second operand  has 5 states, 5 states have (on average 967.6) internal successors, (4838), 5 states have internal predecessors, (4838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:40,346 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:23:40,346 INFO  L93              Difference]: Finished difference Result 18182 states and 27216 transitions.
[2024-12-02 15:23:40,347 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:23:40,347 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 967.6) internal successors, (4838), 5 states have internal predecessors, (4838), 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 4838
[2024-12-02 15:23:40,348 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:23:40,353 INFO  L225             Difference]: With dead ends: 18182
[2024-12-02 15:23:40,354 INFO  L226             Difference]: Without dead ends: 9782
[2024-12-02 15:23:40,358 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 15:23:40,358 INFO  L435           NwaCegarLoop]: 12309 mSDtfsCounter, 25288 mSDsluCounter, 12303 mSDsCounter, 0 mSdLazyCounter, 1391 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25288 SdHoareTripleChecker+Valid, 24612 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:23:40,358 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [25288 Valid, 24612 Invalid, 1396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1391 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-12-02 15:23:40,365 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9782 states.
[2024-12-02 15:23:40,415 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9782 to 9782.
[2024-12-02 15:23:40,422 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9782 states, 9781 states have (on average 1.4970861875063899) internal successors, (14643), 9781 states have internal predecessors, (14643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:40,430 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9782 states to 9782 states and 14643 transitions.
[2024-12-02 15:23:40,430 INFO  L78                 Accepts]: Start accepts. Automaton has 9782 states and 14643 transitions. Word has length 4838
[2024-12-02 15:23:40,431 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:23:40,431 INFO  L471      AbstractCegarLoop]: Abstraction has 9782 states and 14643 transitions.
[2024-12-02 15:23:40,432 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 967.6) internal successors, (4838), 5 states have internal predecessors, (4838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:40,432 INFO  L276                IsEmpty]: Start isEmpty. Operand 9782 states and 14643 transitions.
[2024-12-02 15:23:40,519 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4840
[2024-12-02 15:23:40,519 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:23:40,520 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:23:40,520 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2024-12-02 15:23:40,520 INFO  L396      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:23:40,521 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:23:40,521 INFO  L85        PathProgramCache]: Analyzing trace with hash 33114226, now seen corresponding path program 1 times
[2024-12-02 15:23:40,521 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:23:40,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076744489]
[2024-12-02 15:23:40,521 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:23:40,521 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:23:45,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:23:54,824 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:23:54,824 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:23:54,824 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076744489]
[2024-12-02 15:23:54,824 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076744489] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:23:54,824 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:23:54,825 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:23:54,825 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395536069]
[2024-12-02 15:23:54,825 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:23:54,827 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:23:54,827 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:23:54,829 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:23:54,829 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:23:54,830 INFO  L87              Difference]: Start difference. First operand 9782 states and 14643 transitions. Second operand  has 5 states, 5 states have (on average 967.8) internal successors, (4839), 5 states have internal predecessors, (4839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:55,055 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:23:55,055 INFO  L93              Difference]: Finished difference Result 18183 states and 27216 transitions.
[2024-12-02 15:23:55,056 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:23:55,056 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 967.8) internal successors, (4839), 5 states have internal predecessors, (4839), 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 4839
[2024-12-02 15:23:55,057 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:23:55,062 INFO  L225             Difference]: With dead ends: 18183
[2024-12-02 15:23:55,063 INFO  L226             Difference]: Without dead ends: 9783
[2024-12-02 15:23:55,067 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 15:23:55,067 INFO  L435           NwaCegarLoop]: 12955 mSDtfsCounter, 11927 mSDsluCounter, 25905 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11927 SdHoareTripleChecker+Valid, 38860 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:23:55,067 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11927 Valid, 38860 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:23:55,074 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9783 states.
[2024-12-02 15:23:55,123 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9783 to 9783.
[2024-12-02 15:23:55,130 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9783 states, 9782 states have (on average 1.4970353710897566) internal successors, (14644), 9782 states have internal predecessors, (14644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:55,138 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9783 states to 9783 states and 14644 transitions.
[2024-12-02 15:23:55,138 INFO  L78                 Accepts]: Start accepts. Automaton has 9783 states and 14644 transitions. Word has length 4839
[2024-12-02 15:23:55,139 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:23:55,139 INFO  L471      AbstractCegarLoop]: Abstraction has 9783 states and 14644 transitions.
[2024-12-02 15:23:55,140 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 967.8) internal successors, (4839), 5 states have internal predecessors, (4839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:23:55,140 INFO  L276                IsEmpty]: Start isEmpty. Operand 9783 states and 14644 transitions.
[2024-12-02 15:23:55,249 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4840
[2024-12-02 15:23:55,249 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:23:55,250 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:23:55,250 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2024-12-02 15:23:55,250 INFO  L396      AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:23:55,250 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:23:55,251 INFO  L85        PathProgramCache]: Analyzing trace with hash 6671410, now seen corresponding path program 1 times
[2024-12-02 15:23:55,251 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:23:55,251 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903684687]
[2024-12-02 15:23:55,251 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:23:55,251 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:24:01,105 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:24:09,703 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:24:09,703 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:24:09,703 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903684687]
[2024-12-02 15:24:09,703 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903684687] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:24:09,703 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:24:09,704 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:24:09,704 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471081361]
[2024-12-02 15:24:09,704 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:24:09,706 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:24:09,706 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:24:09,708 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:24:09,708 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:24:09,710 INFO  L87              Difference]: Start difference. First operand 9783 states and 14644 transitions. Second operand  has 5 states, 5 states have (on average 967.8) internal successors, (4839), 5 states have internal predecessors, (4839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:10,383 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:24:10,383 INFO  L93              Difference]: Finished difference Result 18184 states and 27216 transitions.
[2024-12-02 15:24:10,383 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:24:10,384 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 967.8) internal successors, (4839), 5 states have internal predecessors, (4839), 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 4839
[2024-12-02 15:24:10,385 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:24:10,389 INFO  L225             Difference]: With dead ends: 18184
[2024-12-02 15:24:10,389 INFO  L226             Difference]: Without dead ends: 9783
[2024-12-02 15:24:10,392 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 15:24:10,392 INFO  L435           NwaCegarLoop]: 12605 mSDtfsCounter, 24493 mSDsluCounter, 12602 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24493 SdHoareTripleChecker+Valid, 25207 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 15:24:10,392 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [24493 Valid, 25207 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 15:24:10,399 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9783 states.
[2024-12-02 15:24:10,448 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9783 to 9783.
[2024-12-02 15:24:10,455 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9783 states, 9782 states have (on average 1.4969331425066448) internal successors, (14643), 9782 states have internal predecessors, (14643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:10,465 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9783 states to 9783 states and 14643 transitions.
[2024-12-02 15:24:10,465 INFO  L78                 Accepts]: Start accepts. Automaton has 9783 states and 14643 transitions. Word has length 4839
[2024-12-02 15:24:10,466 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:24:10,466 INFO  L471      AbstractCegarLoop]: Abstraction has 9783 states and 14643 transitions.
[2024-12-02 15:24:10,466 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 967.8) internal successors, (4839), 5 states have internal predecessors, (4839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:10,467 INFO  L276                IsEmpty]: Start isEmpty. Operand 9783 states and 14643 transitions.
[2024-12-02 15:24:10,593 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4841
[2024-12-02 15:24:10,593 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:24:10,594 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:24:10,594 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2024-12-02 15:24:10,594 INFO  L396      AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:24:10,595 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:24:10,595 INFO  L85        PathProgramCache]: Analyzing trace with hash 1092664154, now seen corresponding path program 1 times
[2024-12-02 15:24:10,595 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:24:10,595 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967597504]
[2024-12-02 15:24:10,596 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:24:10,596 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:24:11,291 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:24:17,405 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:24:17,405 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:24:17,405 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967597504]
[2024-12-02 15:24:17,405 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967597504] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:24:17,405 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:24:17,405 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:24:17,405 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799304193]
[2024-12-02 15:24:17,406 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:24:17,407 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:24:17,407 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:24:17,409 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:24:17,409 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:24:17,410 INFO  L87              Difference]: Start difference. First operand 9783 states and 14643 transitions. Second operand  has 4 states, 4 states have (on average 1210.0) internal successors, (4840), 4 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:18,405 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:24:18,405 INFO  L93              Difference]: Finished difference Result 19979 states and 29904 transitions.
[2024-12-02 15:24:18,406 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:24:18,407 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1210.0) internal successors, (4840), 4 states have internal predecessors, (4840), 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 4840
[2024-12-02 15:24:18,408 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:24:18,414 INFO  L225             Difference]: With dead ends: 19979
[2024-12-02 15:24:18,414 INFO  L226             Difference]: Without dead ends: 9783
[2024-12-02 15:24:18,419 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:24:18,420 INFO  L435           NwaCegarLoop]: 12891 mSDtfsCounter, 1718 mSDsluCounter, 25192 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 38083 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-02 15:24:18,420 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1718 Valid, 38083 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-02 15:24:18,434 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9783 states.
[2024-12-02 15:24:18,668 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9783 to 9783.
[2024-12-02 15:24:18,676 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9783 states, 9782 states have (on average 1.496830913923533) internal successors, (14642), 9782 states have internal predecessors, (14642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:18,685 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9783 states to 9783 states and 14642 transitions.
[2024-12-02 15:24:18,685 INFO  L78                 Accepts]: Start accepts. Automaton has 9783 states and 14642 transitions. Word has length 4840
[2024-12-02 15:24:18,686 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:24:18,686 INFO  L471      AbstractCegarLoop]: Abstraction has 9783 states and 14642 transitions.
[2024-12-02 15:24:18,687 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1210.0) internal successors, (4840), 4 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:18,687 INFO  L276                IsEmpty]: Start isEmpty. Operand 9783 states and 14642 transitions.
[2024-12-02 15:24:18,779 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4841
[2024-12-02 15:24:18,779 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:24:18,780 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:24:18,780 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2024-12-02 15:24:18,780 INFO  L396      AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:24:18,780 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:24:18,781 INFO  L85        PathProgramCache]: Analyzing trace with hash -1831295255, now seen corresponding path program 1 times
[2024-12-02 15:24:18,781 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:24:18,781 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981799705]
[2024-12-02 15:24:18,781 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:24:18,781 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:24:21,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:24:29,716 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:24:29,717 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:24:29,717 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981799705]
[2024-12-02 15:24:29,717 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981799705] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:24:29,717 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:24:29,717 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:24:29,717 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122751922]
[2024-12-02 15:24:29,717 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:24:29,719 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:24:29,719 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:24:29,720 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:24:29,720 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:24:29,721 INFO  L87              Difference]: Start difference. First operand 9783 states and 14642 transitions. Second operand  has 5 states, 5 states have (on average 968.0) internal successors, (4840), 5 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:30,928 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:24:30,929 INFO  L93              Difference]: Finished difference Result 18184 states and 27212 transitions.
[2024-12-02 15:24:30,929 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:24:30,930 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 968.0) internal successors, (4840), 5 states have internal predecessors, (4840), 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 4840
[2024-12-02 15:24:30,931 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:24:30,936 INFO  L225             Difference]: With dead ends: 18184
[2024-12-02 15:24:30,936 INFO  L226             Difference]: Without dead ends: 9783
[2024-12-02 15:24:30,941 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 15:24:30,941 INFO  L435           NwaCegarLoop]: 12308 mSDtfsCounter, 25200 mSDsluCounter, 12303 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25200 SdHoareTripleChecker+Valid, 24611 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:24:30,941 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [25200 Valid, 24611 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-12-02 15:24:30,949 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9783 states.
[2024-12-02 15:24:31,006 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9783 to 9783.
[2024-12-02 15:24:31,013 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9783 states, 9782 states have (on average 1.4967286853404211) internal successors, (14641), 9782 states have internal predecessors, (14641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:31,022 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9783 states to 9783 states and 14641 transitions.
[2024-12-02 15:24:31,023 INFO  L78                 Accepts]: Start accepts. Automaton has 9783 states and 14641 transitions. Word has length 4840
[2024-12-02 15:24:31,023 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:24:31,023 INFO  L471      AbstractCegarLoop]: Abstraction has 9783 states and 14641 transitions.
[2024-12-02 15:24:31,024 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 968.0) internal successors, (4840), 5 states have internal predecessors, (4840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:31,024 INFO  L276                IsEmpty]: Start isEmpty. Operand 9783 states and 14641 transitions.
[2024-12-02 15:24:31,117 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4842
[2024-12-02 15:24:31,117 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:24:31,118 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:24:31,118 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2024-12-02 15:24:31,118 INFO  L396      AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:24:31,119 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:24:31,119 INFO  L85        PathProgramCache]: Analyzing trace with hash 1408866218, now seen corresponding path program 1 times
[2024-12-02 15:24:31,119 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:24:31,119 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378897494]
[2024-12-02 15:24:31,120 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:24:31,120 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:24:36,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:24:45,413 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:24:45,413 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:24:45,413 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378897494]
[2024-12-02 15:24:45,413 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378897494] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:24:45,413 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:24:45,413 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:24:45,414 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4408939]
[2024-12-02 15:24:45,414 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:24:45,415 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:24:45,415 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:24:45,417 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:24:45,417 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:24:45,418 INFO  L87              Difference]: Start difference. First operand 9783 states and 14641 transitions. Second operand  has 5 states, 5 states have (on average 968.2) internal successors, (4841), 5 states have internal predecessors, (4841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:45,636 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:24:45,636 INFO  L93              Difference]: Finished difference Result 18185 states and 27212 transitions.
[2024-12-02 15:24:45,636 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:24:45,637 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 968.2) internal successors, (4841), 5 states have internal predecessors, (4841), 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 4841
[2024-12-02 15:24:45,638 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:24:45,643 INFO  L225             Difference]: With dead ends: 18185
[2024-12-02 15:24:45,643 INFO  L226             Difference]: Without dead ends: 9784
[2024-12-02 15:24:45,648 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 15:24:45,648 INFO  L435           NwaCegarLoop]: 12952 mSDtfsCounter, 11886 mSDsluCounter, 25899 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11886 SdHoareTripleChecker+Valid, 38851 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:24:45,648 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11886 Valid, 38851 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:24:45,656 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9784 states.
[2024-12-02 15:24:45,713 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9784 to 9784.
[2024-12-02 15:24:45,720 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9784 states, 9783 states have (on average 1.4966779106613513) internal successors, (14642), 9783 states have internal predecessors, (14642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:45,729 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9784 states to 9784 states and 14642 transitions.
[2024-12-02 15:24:45,729 INFO  L78                 Accepts]: Start accepts. Automaton has 9784 states and 14642 transitions. Word has length 4841
[2024-12-02 15:24:45,730 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:24:45,730 INFO  L471      AbstractCegarLoop]: Abstraction has 9784 states and 14642 transitions.
[2024-12-02 15:24:45,731 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 968.2) internal successors, (4841), 5 states have internal predecessors, (4841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:45,731 INFO  L276                IsEmpty]: Start isEmpty. Operand 9784 states and 14642 transitions.
[2024-12-02 15:24:45,842 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4842
[2024-12-02 15:24:45,842 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:24:45,843 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:24:45,843 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2024-12-02 15:24:45,843 INFO  L396      AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:24:45,844 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:24:45,844 INFO  L85        PathProgramCache]: Analyzing trace with hash -750978198, now seen corresponding path program 1 times
[2024-12-02 15:24:45,844 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:24:45,844 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396294248]
[2024-12-02 15:24:45,844 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:24:45,845 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:24:51,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:24:59,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:24:59,052 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:24:59,052 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396294248]
[2024-12-02 15:24:59,053 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396294248] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:24:59,053 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:24:59,054 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:24:59,054 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497398738]
[2024-12-02 15:24:59,054 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:24:59,055 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:24:59,056 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:24:59,057 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:24:59,057 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:24:59,058 INFO  L87              Difference]: Start difference. First operand 9784 states and 14642 transitions. Second operand  has 5 states, 5 states have (on average 968.2) internal successors, (4841), 5 states have internal predecessors, (4841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:59,690 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:24:59,690 INFO  L93              Difference]: Finished difference Result 18186 states and 27212 transitions.
[2024-12-02 15:24:59,691 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:24:59,692 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 968.2) internal successors, (4841), 5 states have internal predecessors, (4841), 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 4841
[2024-12-02 15:24:59,693 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:24:59,699 INFO  L225             Difference]: With dead ends: 18186
[2024-12-02 15:24:59,699 INFO  L226             Difference]: Without dead ends: 9784
[2024-12-02 15:24:59,703 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 15:24:59,703 INFO  L435           NwaCegarLoop]: 12603 mSDtfsCounter, 24391 mSDsluCounter, 12600 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24391 SdHoareTripleChecker+Valid, 25203 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 15:24:59,703 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [24391 Valid, 25203 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 15:24:59,710 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9784 states.
[2024-12-02 15:24:59,762 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9784 to 9784.
[2024-12-02 15:24:59,769 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9784 states, 9783 states have (on average 1.4965756925278544) internal successors, (14641), 9783 states have internal predecessors, (14641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:59,821 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9784 states to 9784 states and 14641 transitions.
[2024-12-02 15:24:59,821 INFO  L78                 Accepts]: Start accepts. Automaton has 9784 states and 14641 transitions. Word has length 4841
[2024-12-02 15:24:59,822 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:24:59,822 INFO  L471      AbstractCegarLoop]: Abstraction has 9784 states and 14641 transitions.
[2024-12-02 15:24:59,823 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 968.2) internal successors, (4841), 5 states have internal predecessors, (4841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:24:59,823 INFO  L276                IsEmpty]: Start isEmpty. Operand 9784 states and 14641 transitions.
[2024-12-02 15:24:59,910 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4843
[2024-12-02 15:24:59,910 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:24:59,911 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:24:59,911 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2024-12-02 15:24:59,911 INFO  L396      AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:24:59,912 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:24:59,912 INFO  L85        PathProgramCache]: Analyzing trace with hash -1064159932, now seen corresponding path program 1 times
[2024-12-02 15:24:59,912 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:24:59,912 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071505587]
[2024-12-02 15:24:59,913 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:24:59,913 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:25:00,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:25:07,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:25:07,552 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:25:07,552 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071505587]
[2024-12-02 15:25:07,552 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071505587] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:25:07,552 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:25:07,552 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:25:07,553 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483956109]
[2024-12-02 15:25:07,553 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:25:07,554 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:25:07,554 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:25:07,555 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:25:07,555 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:25:07,556 INFO  L87              Difference]: Start difference. First operand 9784 states and 14641 transitions. Second operand  has 4 states, 4 states have (on average 1210.5) internal successors, (4842), 4 states have internal predecessors, (4842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:25:08,505 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:25:08,505 INFO  L93              Difference]: Finished difference Result 19891 states and 29765 transitions.
[2024-12-02 15:25:08,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:25:08,506 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1210.5) internal successors, (4842), 4 states have internal predecessors, (4842), 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 4842
[2024-12-02 15:25:08,508 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:25:08,513 INFO  L225             Difference]: With dead ends: 19891
[2024-12-02 15:25:08,513 INFO  L226             Difference]: Without dead ends: 9784
[2024-12-02 15:25:08,518 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:25:08,518 INFO  L435           NwaCegarLoop]: 12896 mSDtfsCounter, 1634 mSDsluCounter, 25196 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 38092 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-12-02 15:25:08,519 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 38092 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-12-02 15:25:08,525 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9784 states.
[2024-12-02 15:25:08,576 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9784 to 9784.
[2024-12-02 15:25:08,583 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9784 states, 9783 states have (on average 1.4964734743943575) internal successors, (14640), 9783 states have internal predecessors, (14640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:25:08,591 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9784 states to 9784 states and 14640 transitions.
[2024-12-02 15:25:08,591 INFO  L78                 Accepts]: Start accepts. Automaton has 9784 states and 14640 transitions. Word has length 4842
[2024-12-02 15:25:08,591 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:25:08,591 INFO  L471      AbstractCegarLoop]: Abstraction has 9784 states and 14640 transitions.
[2024-12-02 15:25:08,592 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1210.5) internal successors, (4842), 4 states have internal predecessors, (4842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:25:08,592 INFO  L276                IsEmpty]: Start isEmpty. Operand 9784 states and 14640 transitions.
[2024-12-02 15:25:08,680 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4843
[2024-12-02 15:25:08,680 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:25:08,681 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 15:25:08,681 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2024-12-02 15:25:08,681 INFO  L396      AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:25:08,682 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:25:08,682 INFO  L85        PathProgramCache]: Analyzing trace with hash -351800557, now seen corresponding path program 1 times
[2024-12-02 15:25:08,682 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:25:08,682 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155685270]
[2024-12-02 15:25:08,683 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:25:08,683 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:25:11,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:25:19,845 INFO  L134       CoverageAnalysis]: Checked inductivity of 548 backedges. 548 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:25:19,846 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:25:19,846 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155685270]
[2024-12-02 15:25:19,846 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155685270] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:25:19,846 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:25:19,846 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:25:19,846 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350205978]
[2024-12-02 15:25:19,846 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:25:19,848 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:25:19,848 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:25:19,849 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:25:19,849 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:25:19,850 INFO  L87              Difference]: Start difference. First operand 9784 states and 14640 transitions. Second operand  has 5 states, 5 states have (on average 968.4) internal successors, (4842), 5 states have internal predecessors, (4842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:25:20,995 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:25:20,995 INFO  L93              Difference]: Finished difference Result 18186 states and 27208 transitions.
[2024-12-02 15:25:20,996 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:25:20,996 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 968.4) internal successors, (4842), 5 states have internal predecessors, (4842), 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 4842
[2024-12-02 15:25:20,997 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:25:21,002 INFO  L225             Difference]: With dead ends: 18186
[2024-12-02 15:25:21,003 INFO  L226             Difference]: Without dead ends: 9784
[2024-12-02 15:25:21,007 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 15:25:21,007 INFO  L435           NwaCegarLoop]: 12307 mSDtfsCounter, 12560 mSDsluCounter, 12302 mSDsCounter, 0 mSdLazyCounter, 1383 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12560 SdHoareTripleChecker+Valid, 24609 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:25:21,007 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12560 Valid, 24609 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1383 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2024-12-02 15:25:21,014 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9784 states.
[2024-12-02 15:25:21,352 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9784 to 9784.
[2024-12-02 15:25:21,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9784 states, 9783 states have (on average 1.4963712562608606) internal successors, (14639), 9783 states have internal predecessors, (14639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:25:21,367 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9784 states to 9784 states and 14639 transitions.
[2024-12-02 15:25:21,367 INFO  L78                 Accepts]: Start accepts. Automaton has 9784 states and 14639 transitions. Word has length 4842
[2024-12-02 15:25:21,367 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:25:21,367 INFO  L471      AbstractCegarLoop]: Abstraction has 9784 states and 14639 transitions.
[2024-12-02 15:25:21,368 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 968.4) internal successors, (4842), 5 states have internal predecessors, (4842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:25:21,368 INFO  L276                IsEmpty]: Start isEmpty. Operand 9784 states and 14639 transitions.
[2024-12-02 15:25:21,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4844
[2024-12-02 15:25:21,457 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:25:21,457 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 15:25:21,458 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2024-12-02 15:25:21,458 INFO  L396      AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:25:21,458 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:25:21,459 INFO  L85        PathProgramCache]: Analyzing trace with hash 747253538, now seen corresponding path program 1 times
[2024-12-02 15:25:21,459 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:25:21,459 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298317622]
[2024-12-02 15:25:21,459 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:25:21,459 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:25:27,170 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat