./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.2.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e7ce2ceab9a4780081e64ea57768b919bba3caec8cab58aa0faadbe267bb0a07
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:20:17,381 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:20:17,493 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-23 23:20:17,499 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:20:17,500 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:20:17,528 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:20:17,529 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:20:17,529 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:20:17,529 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:20:17,530 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-23 23:20:17,530 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:20:17,530 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:20:17,530 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:20:17,531 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-23 23:20:17,531 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-23 23:20:17,531 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:20:17,531 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:20:17,531 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-23 23:20:17,531 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-23 23:20:17,532 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:20:17,532 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:20:17,532 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:20:17,532 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-23 23:20:17,532 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:20:17,532 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-23 23:20:17,532 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:20:17,533 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-23 23:20:17,533 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:20:17,533 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-23 23:20:17,533 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:20:17,533 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:20:17,533 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-23 23:20:17,534 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:20:17,534 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-23 23:20:17,534 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:20:17,534 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:20:17,534 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:20:17,534 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-23 23:20:17,534 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:20:17,535 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-23 23:20:17,535 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 23:20:17,535 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:20:17,535 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:20:17,535 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:20:17,535 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:20:17,535 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_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7ce2ceab9a4780081e64ea57768b919bba3caec8cab58aa0faadbe267bb0a07
[2024-11-23 23:20:17,902 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:20:17,911 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:20:17,913 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:20:17,914 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-23 23:20:17,915 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-23 23:20:17,916 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.2.prop1-func-interl.c
[2024-11-23 23:20:20,852 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/data/40c4b87b4/a7b917b26fee436f9eb7db47c208e19d/FLAGf0ca53943
[2024-11-23 23:20:21,514 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-23 23:20:21,515 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.2.prop1-func-interl.c
[2024-11-23 23:20:21,548 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/data/40c4b87b4/a7b917b26fee436f9eb7db47c208e19d/FLAGf0ca53943
[2024-11-23 23:20:21,581 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/data/40c4b87b4/a7b917b26fee436f9eb7db47c208e19d
[2024-11-23 23:20:21,584 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:20:21,587 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:20:21,590 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:20:21,591 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:20:21,596 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:20:21,597 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:20:21" (1/1) ...
[2024-11-23 23:20:21,599 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a9ed15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:21, skipping insertion in model container
[2024-11-23 23:20:21,599 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:20:21" (1/1) ...
[2024-11-23 23:20:21,720 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:20:22,015 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_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.2.prop1-func-interl.c[1176,1189]
[2024-11-23 23:20:22,810 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:20:22,824 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-23 23:20:22,837 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_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cambridge.2.prop1-func-interl.c[1176,1189]
[2024-11-23 23:20:23,296 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:20:23,315 INFO  L204         MainTranslator]: Completed translation
[2024-11-23 23:20:23,316 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23 WrapperNode
[2024-11-23 23:20:23,318 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:20:23,319 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:20:23,319 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:20:23,320 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:20:23,331 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:23,474 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:25,177 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13121
[2024-11-23 23:20:25,181 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:20:25,183 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:20:25,187 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:20:25,187 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:20:25,209 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:25,213 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:25,809 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:26,055 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-23 23:20:26,055 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:26,056 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:26,472 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:26,518 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:26,589 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:26,654 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:26,698 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:26,909 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:20:26,910 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:20:26,910 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:20:26,910 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:20:26,911 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (1/1) ...
[2024-11-23 23:20:26,918 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:20:26,936 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:20:26,952 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:20:26,957 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0a61055-f4e8-432c-9fe8-3a1ccd5651f1/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:20:26,989 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:20:26,989 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 23:20:26,989 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:20:26,989 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:20:28,031 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-23 23:20:28,034 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:21:00,627 INFO  L?                        ?]: Removed 7395 outVars from TransFormulas that were not future-live.
[2024-11-23 23:21:00,628 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-23 23:21:00,747 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:21:00,748 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-23 23:21:00,748 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:21:00 BoogieIcfgContainer
[2024-11-23 23:21:00,748 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:21:00,751 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 23:21:00,751 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 23:21:00,756 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-23 23:21:00,757 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:20:21" (1/3) ...
[2024-11-23 23:21:00,757 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11317541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:21:00, skipping insertion in model container
[2024-11-23 23:21:00,757 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:20:23" (2/3) ...
[2024-11-23 23:21:00,758 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11317541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:21:00, skipping insertion in model container
[2024-11-23 23:21:00,758 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:21:00" (3/3) ...
[2024-11-23 23:21:00,759 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cambridge.2.prop1-func-interl.c
[2024-11-23 23:21:00,782 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 23:21:00,783 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cambridge.2.prop1-func-interl.c that has 1 procedures, 4550 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-23 23:21:00,973 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 23:21:00,990 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;@325179bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 23:21:00,991 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 23:21:01,015 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4550 states, 4548 states have (on average 1.5019788918205805) internal successors, (6831), 4549 states have internal predecessors, (6831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:01,035 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 188
[2024-11-23 23:21:01,035 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:21:01,036 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]
[2024-11-23 23:21:01,037 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:21:01,042 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:21:01,043 INFO  L85        PathProgramCache]: Analyzing trace with hash 464142299, now seen corresponding path program 1 times
[2024-11-23 23:21:01,051 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:21:01,052 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802289914]
[2024-11-23 23:21:01,052 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:21:01,053 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:21:01,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:21:02,784 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:21:02,785 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:21:02,786 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802289914]
[2024-11-23 23:21:02,787 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802289914] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:21:02,790 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:21:02,791 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:21:02,792 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066146801]
[2024-11-23 23:21:02,793 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:21:02,799 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:21:02,800 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:21:02,827 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:21:02,828 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:21:02,840 INFO  L87              Difference]: Start difference. First operand  has 4550 states, 4548 states have (on average 1.5019788918205805) internal successors, (6831), 4549 states have internal predecessors, (6831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:03,275 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:21:03,276 INFO  L93              Difference]: Finished difference Result 8937 states and 13421 transitions.
[2024-11-23 23:21:03,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:21:03,278 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 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 187
[2024-11-23 23:21:03,280 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:21:03,325 INFO  L225             Difference]: With dead ends: 8937
[2024-11-23 23:21:03,326 INFO  L226             Difference]: Without dead ends: 4549
[2024-11-23 23:21:03,337 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:21:03,341 INFO  L435           NwaCegarLoop]: 6825 mSDtfsCounter, 0 mSDsluCounter, 13644 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20469 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:21:03,342 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20469 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 23:21:03,367 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4549 states.
[2024-11-23 23:21:03,556 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4549 to 4549.
[2024-11-23 23:21:03,566 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4549 states, 4548 states have (on average 1.5015391380826737) internal successors, (6829), 4548 states have internal predecessors, (6829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:03,593 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4549 states to 4549 states and 6829 transitions.
[2024-11-23 23:21:03,596 INFO  L78                 Accepts]: Start accepts. Automaton has 4549 states and 6829 transitions. Word has length 187
[2024-11-23 23:21:03,597 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:21:03,597 INFO  L471      AbstractCegarLoop]: Abstraction has 4549 states and 6829 transitions.
[2024-11-23 23:21:03,598 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 46.75) internal successors, (187), 4 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:03,598 INFO  L276                IsEmpty]: Start isEmpty. Operand 4549 states and 6829 transitions.
[2024-11-23 23:21:03,601 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 189
[2024-11-23 23:21:03,605 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:21:03,605 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]
[2024-11-23 23:21:03,606 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 23:21:03,606 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:21:03,607 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:21:03,607 INFO  L85        PathProgramCache]: Analyzing trace with hash 1505205717, now seen corresponding path program 1 times
[2024-11-23 23:21:03,607 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:21:03,607 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983455789]
[2024-11-23 23:21:03,608 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:21:03,608 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:21:03,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:21:04,225 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:21:04,225 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:21:04,225 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983455789]
[2024-11-23 23:21:04,226 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983455789] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:21:04,226 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:21:04,226 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:21:04,226 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417740703]
[2024-11-23 23:21:04,226 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:21:04,230 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:21:04,230 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:21:04,231 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:21:04,231 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:21:04,231 INFO  L87              Difference]: Start difference. First operand 4549 states and 6829 transitions. Second operand  has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:04,463 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:21:04,463 INFO  L93              Difference]: Finished difference Result 8938 states and 13419 transitions.
[2024-11-23 23:21:04,464 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:21:04,464 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 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 188
[2024-11-23 23:21:04,466 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:21:04,482 INFO  L225             Difference]: With dead ends: 8938
[2024-11-23 23:21:04,483 INFO  L226             Difference]: Without dead ends: 4551
[2024-11-23 23:21:04,488 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:21:04,491 INFO  L435           NwaCegarLoop]: 6825 mSDtfsCounter, 0 mSDsluCounter, 13640 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20465 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:21:04,493 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20465 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 23:21:04,502 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4551 states.
[2024-11-23 23:21:04,591 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 4551.
[2024-11-23 23:21:04,600 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4551 states, 4550 states have (on average 1.5013186813186814) internal successors, (6831), 4550 states have internal predecessors, (6831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:04,621 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4551 states to 4551 states and 6831 transitions.
[2024-11-23 23:21:04,621 INFO  L78                 Accepts]: Start accepts. Automaton has 4551 states and 6831 transitions. Word has length 188
[2024-11-23 23:21:04,622 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:21:04,624 INFO  L471      AbstractCegarLoop]: Abstraction has 4551 states and 6831 transitions.
[2024-11-23 23:21:04,624 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:04,625 INFO  L276                IsEmpty]: Start isEmpty. Operand 4551 states and 6831 transitions.
[2024-11-23 23:21:04,627 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 190
[2024-11-23 23:21:04,630 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:21:04,631 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]
[2024-11-23 23:21:04,631 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-23 23:21:04,631 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:21:04,632 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:21:04,632 INFO  L85        PathProgramCache]: Analyzing trace with hash -1681227788, now seen corresponding path program 1 times
[2024-11-23 23:21:04,632 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:21:04,632 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746904237]
[2024-11-23 23:21:04,632 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:21:04,632 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:21:04,774 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:21:05,556 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:21:05,558 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:21:05,558 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746904237]
[2024-11-23 23:21:05,559 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746904237] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:21:05,559 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:21:05,559 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 23:21:05,559 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461678027]
[2024-11-23 23:21:05,559 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:21:05,560 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:21:05,560 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:21:05,561 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:21:05,563 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:21:05,563 INFO  L87              Difference]: Start difference. First operand 4551 states and 6831 transitions. Second operand  has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:06,056 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:21:06,057 INFO  L93              Difference]: Finished difference Result 12863 states and 19312 transitions.
[2024-11-23 23:21:06,057 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-23 23:21:06,057 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 0 states have call successors, (0), 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 189
[2024-11-23 23:21:06,059 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:21:06,093 INFO  L225             Difference]: With dead ends: 12863
[2024-11-23 23:21:06,093 INFO  L226             Difference]: Without dead ends: 8474
[2024-11-23 23:21:06,101 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-23 23:21:06,102 INFO  L435           NwaCegarLoop]: 6821 mSDtfsCounter, 5958 mSDsluCounter, 20216 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5958 SdHoareTripleChecker+Valid, 27037 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:21:06,103 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5958 Valid, 27037 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:21:06,120 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8474 states.
[2024-11-23 23:21:06,264 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8474 to 4749.
[2024-11-23 23:21:06,273 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4749 states, 4748 states have (on average 1.5010530749789386) internal successors, (7127), 4748 states have internal predecessors, (7127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:06,299 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4749 states to 4749 states and 7127 transitions.
[2024-11-23 23:21:06,299 INFO  L78                 Accepts]: Start accepts. Automaton has 4749 states and 7127 transitions. Word has length 189
[2024-11-23 23:21:06,300 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:21:06,300 INFO  L471      AbstractCegarLoop]: Abstraction has 4749 states and 7127 transitions.
[2024-11-23 23:21:06,300 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 37.8) internal successors, (189), 5 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:06,300 INFO  L276                IsEmpty]: Start isEmpty. Operand 4749 states and 7127 transitions.
[2024-11-23 23:21:06,497 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2347
[2024-11-23 23:21:06,497 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:21:06,499 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:21:06,500 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-23 23:21:06,500 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:21:06,502 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:21:06,503 INFO  L85        PathProgramCache]: Analyzing trace with hash 1704771958, now seen corresponding path program 1 times
[2024-11-23 23:21:06,504 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:21:06,504 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412231225]
[2024-11-23 23:21:06,505 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:21:06,505 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:21:11,918 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:21:19,467 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:21:19,467 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:21:19,467 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412231225]
[2024-11-23 23:21:19,470 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412231225] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:21:19,470 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:21:19,471 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:21:19,471 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113630885]
[2024-11-23 23:21:19,471 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:21:19,474 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:21:19,474 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:21:19,478 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:21:19,478 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:21:19,480 INFO  L87              Difference]: Start difference. First operand 4749 states and 7127 transitions. Second operand  has 4 states, 4 states have (on average 586.5) internal successors, (2346), 4 states have internal predecessors, (2346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:19,692 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:21:19,692 INFO  L93              Difference]: Finished difference Result 9138 states and 13716 transitions.
[2024-11-23 23:21:19,693 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:21:19,698 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 586.5) internal successors, (2346), 4 states have internal predecessors, (2346), 0 states have call successors, (0), 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 2346
[2024-11-23 23:21:19,699 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:21:19,722 INFO  L225             Difference]: With dead ends: 9138
[2024-11-23 23:21:19,723 INFO  L226             Difference]: Without dead ends: 4749
[2024-11-23 23:21:19,728 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:21:19,732 INFO  L435           NwaCegarLoop]: 6819 mSDtfsCounter, 6643 mSDsluCounter, 6817 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6643 SdHoareTripleChecker+Valid, 13636 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:21:19,733 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6643 Valid, 13636 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 23:21:19,744 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4749 states.
[2024-11-23 23:21:19,835 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4749 to 4749.
[2024-11-23 23:21:19,843 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4749 states, 4748 states have (on average 1.5008424599831507) internal successors, (7126), 4748 states have internal predecessors, (7126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:19,868 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4749 states to 4749 states and 7126 transitions.
[2024-11-23 23:21:19,868 INFO  L78                 Accepts]: Start accepts. Automaton has 4749 states and 7126 transitions. Word has length 2346
[2024-11-23 23:21:19,871 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:21:19,871 INFO  L471      AbstractCegarLoop]: Abstraction has 4749 states and 7126 transitions.
[2024-11-23 23:21:19,872 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 586.5) internal successors, (2346), 4 states have internal predecessors, (2346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:19,872 INFO  L276                IsEmpty]: Start isEmpty. Operand 4749 states and 7126 transitions.
[2024-11-23 23:21:19,922 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2348
[2024-11-23 23:21:19,922 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:21:19,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2024-11-23 23:21:19,924 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-23 23:21:19,924 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:21:19,926 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:21:19,928 INFO  L85        PathProgramCache]: Analyzing trace with hash -1938764323, now seen corresponding path program 1 times
[2024-11-23 23:21:19,928 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:21:19,928 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389505813]
[2024-11-23 23:21:19,929 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:21:19,930 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:21:23,673 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:21:28,722 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:21:28,722 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:21:28,722 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389505813]
[2024-11-23 23:21:28,723 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389505813] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:21:28,723 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:21:28,723 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:21:28,723 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927622934]
[2024-11-23 23:21:28,724 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:21:28,728 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:21:28,728 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:21:28,733 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:21:28,734 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:21:28,735 INFO  L87              Difference]: Start difference. First operand 4749 states and 7126 transitions. Second operand  has 4 states, 4 states have (on average 586.75) internal successors, (2347), 4 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:28,998 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:21:28,998 INFO  L93              Difference]: Finished difference Result 9138 states and 13714 transitions.
[2024-11-23 23:21:28,999 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:21:29,000 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 586.75) internal successors, (2347), 4 states have internal predecessors, (2347), 0 states have call successors, (0), 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 2347
[2024-11-23 23:21:29,001 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:21:29,036 INFO  L225             Difference]: With dead ends: 9138
[2024-11-23 23:21:29,037 INFO  L226             Difference]: Without dead ends: 4749
[2024-11-23 23:21:29,043 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:21:29,045 INFO  L435           NwaCegarLoop]: 6818 mSDtfsCounter, 6613 mSDsluCounter, 6816 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6613 SdHoareTripleChecker+Valid, 13634 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:21:29,046 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6613 Valid, 13634 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 23:21:29,058 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4749 states.
[2024-11-23 23:21:29,175 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4749 to 4749.
[2024-11-23 23:21:29,184 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4749 states, 4748 states have (on average 1.500631844987363) internal successors, (7125), 4748 states have internal predecessors, (7125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:29,212 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4749 states to 4749 states and 7125 transitions.
[2024-11-23 23:21:29,212 INFO  L78                 Accepts]: Start accepts. Automaton has 4749 states and 7125 transitions. Word has length 2347
[2024-11-23 23:21:29,213 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:21:29,213 INFO  L471      AbstractCegarLoop]: Abstraction has 4749 states and 7125 transitions.
[2024-11-23 23:21:29,215 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 586.75) internal successors, (2347), 4 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:29,215 INFO  L276                IsEmpty]: Start isEmpty. Operand 4749 states and 7125 transitions.
[2024-11-23 23:21:29,322 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2349
[2024-11-23 23:21:29,322 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:21:29,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 1, 1, 1, 1, 1, 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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]
[2024-11-23 23:21:29,324 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-23 23:21:29,324 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:21:29,326 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:21:29,328 INFO  L85        PathProgramCache]: Analyzing trace with hash 692379125, now seen corresponding path program 1 times
[2024-11-23 23:21:29,328 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:21:29,328 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4936355]
[2024-11-23 23:21:29,329 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:21:29,329 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:21:32,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:21:37,357 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:21:37,357 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:21:37,357 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4936355]
[2024-11-23 23:21:37,358 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4936355] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:21:37,358 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:21:37,358 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 23:21:37,358 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84778073]
[2024-11-23 23:21:37,358 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:21:37,361 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 23:21:37,362 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:21:37,365 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 23:21:37,365 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:21:37,366 INFO  L87              Difference]: Start difference. First operand 4749 states and 7125 transitions. Second operand  has 3 states, 3 states have (on average 782.6666666666666) internal successors, (2348), 3 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:37,514 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:21:37,517 INFO  L93              Difference]: Finished difference Result 9139 states and 13714 transitions.
[2024-11-23 23:21:37,520 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-23 23:21:37,521 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 782.6666666666666) internal successors, (2348), 3 states have internal predecessors, (2348), 0 states have call successors, (0), 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 2348
[2024-11-23 23:21:37,522 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:21:37,541 INFO  L225             Difference]: With dead ends: 9139
[2024-11-23 23:21:37,542 INFO  L226             Difference]: Without dead ends: 4750
[2024-11-23 23:21:37,547 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 23:21:37,549 INFO  L435           NwaCegarLoop]: 6824 mSDtfsCounter, 0 mSDsluCounter, 6818 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13642 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 23:21:37,549 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13642 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 23:21:37,563 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4750 states.
[2024-11-23 23:21:37,655 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4750 to 4750.
[2024-11-23 23:21:37,663 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4750 states, 4749 states have (on average 1.5005264266161298) internal successors, (7126), 4749 states have internal predecessors, (7126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:37,680 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4750 states to 4750 states and 7126 transitions.
[2024-11-23 23:21:37,680 INFO  L78                 Accepts]: Start accepts. Automaton has 4750 states and 7126 transitions. Word has length 2348
[2024-11-23 23:21:37,681 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:21:37,682 INFO  L471      AbstractCegarLoop]: Abstraction has 4750 states and 7126 transitions.
[2024-11-23 23:21:37,683 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 782.6666666666666) internal successors, (2348), 3 states have internal predecessors, (2348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:37,683 INFO  L276                IsEmpty]: Start isEmpty. Operand 4750 states and 7126 transitions.
[2024-11-23 23:21:37,733 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2349
[2024-11-23 23:21:37,733 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:21:37,734 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 1, 1, 1, 1, 1, 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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]
[2024-11-23 23:21:37,735 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-23 23:21:37,735 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:21:37,736 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:21:37,738 INFO  L85        PathProgramCache]: Analyzing trace with hash 1562561636, now seen corresponding path program 1 times
[2024-11-23 23:21:37,738 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:21:37,738 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123362776]
[2024-11-23 23:21:37,739 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:21:37,739 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:21:40,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:21:45,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked.
[2024-11-23 23:21:45,744 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:21:45,744 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123362776]
[2024-11-23 23:21:45,744 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123362776] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:21:45,745 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:21:45,745 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 23:21:45,745 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26323944]
[2024-11-23 23:21:45,746 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:21:45,748 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:21:45,748 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:21:45,752 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:21:45,752 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:21:45,754 INFO  L87              Difference]: Start difference. First operand 4750 states and 7126 transitions. Second operand  has 5 states, 5 states have (on average 450.2) internal successors, (2251), 5 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:45,919 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:21:45,919 INFO  L93              Difference]: Finished difference Result 9144 states and 13719 transitions.
[2024-11-23 23:21:45,919 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:21:45,921 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 450.2) internal successors, (2251), 5 states have internal predecessors, (2251), 0 states have call successors, (0), 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 2348
[2024-11-23 23:21:45,926 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:21:45,980 INFO  L225             Difference]: With dead ends: 9144
[2024-11-23 23:21:45,980 INFO  L226             Difference]: Without dead ends: 4754
[2024-11-23 23:21:45,984 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
[2024-11-23 23:21:45,985 INFO  L435           NwaCegarLoop]: 6823 mSDtfsCounter, 0 mSDsluCounter, 13630 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20453 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:21:45,986 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20453 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:21:45,999 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4754 states.
[2024-11-23 23:21:46,083 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4754 to 4750.
[2024-11-23 23:21:46,091 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4750 states, 4749 states have (on average 1.5005264266161298) internal successors, (7126), 4749 states have internal predecessors, (7126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:46,099 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4750 states to 4750 states and 7126 transitions.
[2024-11-23 23:21:46,099 INFO  L78                 Accepts]: Start accepts. Automaton has 4750 states and 7126 transitions. Word has length 2348
[2024-11-23 23:21:46,104 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:21:46,104 INFO  L471      AbstractCegarLoop]: Abstraction has 4750 states and 7126 transitions.
[2024-11-23 23:21:46,105 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 450.2) internal successors, (2251), 5 states have internal predecessors, (2251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:46,105 INFO  L276                IsEmpty]: Start isEmpty. Operand 4750 states and 7126 transitions.
[2024-11-23 23:21:46,155 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2350
[2024-11-23 23:21:46,156 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:21:46,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:21:46,157 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-23 23:21:46,158 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:21:46,159 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:21:46,160 INFO  L85        PathProgramCache]: Analyzing trace with hash 2103658444, now seen corresponding path program 1 times
[2024-11-23 23:21:46,161 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:21:46,161 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311908442]
[2024-11-23 23:21:46,162 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:21:46,162 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:21:49,363 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:21:55,067 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:21:55,067 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:21:55,067 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311908442]
[2024-11-23 23:21:55,067 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311908442] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:21:55,067 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:21:55,068 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:21:55,068 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766384225]
[2024-11-23 23:21:55,068 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:21:55,071 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:21:55,071 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:21:55,074 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:21:55,074 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:21:55,075 INFO  L87              Difference]: Start difference. First operand 4750 states and 7126 transitions. Second operand  has 4 states, 4 states have (on average 587.25) internal successors, (2349), 4 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:56,028 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:21:56,028 INFO  L93              Difference]: Finished difference Result 9124 states and 13698 transitions.
[2024-11-23 23:21:56,029 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:21:56,030 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 587.25) internal successors, (2349), 4 states have internal predecessors, (2349), 0 states have call successors, (0), 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 2349
[2024-11-23 23:21:56,035 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:21:56,047 INFO  L225             Difference]: With dead ends: 9124
[2024-11-23 23:21:56,048 INFO  L226             Difference]: Without dead ends: 4732
[2024-11-23 23:21:56,053 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:21:56,054 INFO  L435           NwaCegarLoop]: 6584 mSDtfsCounter, 5302 mSDsluCounter, 6581 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5302 SdHoareTripleChecker+Valid, 13165 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-23 23:21:56,054 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5302 Valid, 13165 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-23 23:21:56,064 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4732 states.
[2024-11-23 23:21:56,159 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4732 to 4732.
[2024-11-23 23:21:56,167 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4732 states, 4731 states have (on average 1.4982033396744874) internal successors, (7088), 4731 states have internal predecessors, (7088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:56,179 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4732 states to 4732 states and 7088 transitions.
[2024-11-23 23:21:56,179 INFO  L78                 Accepts]: Start accepts. Automaton has 4732 states and 7088 transitions. Word has length 2349
[2024-11-23 23:21:56,183 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:21:56,183 INFO  L471      AbstractCegarLoop]: Abstraction has 4732 states and 7088 transitions.
[2024-11-23 23:21:56,185 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 587.25) internal successors, (2349), 4 states have internal predecessors, (2349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:21:56,185 INFO  L276                IsEmpty]: Start isEmpty. Operand 4732 states and 7088 transitions.
[2024-11-23 23:21:56,289 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2351
[2024-11-23 23:21:56,289 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:21:56,292 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 1, 1, 1, 1, 1, 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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]
[2024-11-23 23:21:56,292 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-23 23:21:56,292 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:21:56,294 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:21:56,295 INFO  L85        PathProgramCache]: Analyzing trace with hash 1966603828, now seen corresponding path program 1 times
[2024-11-23 23:21:56,296 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:21:56,296 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391246197]
[2024-11-23 23:21:56,297 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:21:56,297 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:21:59,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:22:03,360 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:22:03,360 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:22:03,361 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391246197]
[2024-11-23 23:22:03,361 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391246197] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:22:03,362 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:22:03,362 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:22:03,362 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452950098]
[2024-11-23 23:22:03,362 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:22:03,364 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:22:03,368 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:22:03,370 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:22:03,371 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:22:03,372 INFO  L87              Difference]: Start difference. First operand 4732 states and 7088 transitions. Second operand  has 4 states, 4 states have (on average 587.5) internal successors, (2350), 4 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:03,782 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:22:03,783 INFO  L93              Difference]: Finished difference Result 9109 states and 13644 transitions.
[2024-11-23 23:22:03,783 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:22:03,784 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 587.5) internal successors, (2350), 4 states have internal predecessors, (2350), 0 states have call successors, (0), 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 2350
[2024-11-23 23:22:03,787 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:22:03,798 INFO  L225             Difference]: With dead ends: 9109
[2024-11-23 23:22:03,798 INFO  L226             Difference]: Without dead ends: 4732
[2024-11-23 23:22:03,803 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:22:03,805 INFO  L435           NwaCegarLoop]: 6677 mSDtfsCounter, 5296 mSDsluCounter, 6669 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5296 SdHoareTripleChecker+Valid, 13346 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-23 23:22:03,806 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5296 Valid, 13346 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-23 23:22:03,814 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4732 states.
[2024-11-23 23:22:03,914 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4732 to 4732.
[2024-11-23 23:22:03,921 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4732 states, 4731 states have (on average 1.497991967871486) internal successors, (7087), 4731 states have internal predecessors, (7087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:03,929 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4732 states to 4732 states and 7087 transitions.
[2024-11-23 23:22:03,929 INFO  L78                 Accepts]: Start accepts. Automaton has 4732 states and 7087 transitions. Word has length 2350
[2024-11-23 23:22:03,932 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:22:03,933 INFO  L471      AbstractCegarLoop]: Abstraction has 4732 states and 7087 transitions.
[2024-11-23 23:22:03,933 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 587.5) internal successors, (2350), 4 states have internal predecessors, (2350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:03,934 INFO  L276                IsEmpty]: Start isEmpty. Operand 4732 states and 7087 transitions.
[2024-11-23 23:22:03,983 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2352
[2024-11-23 23:22:03,983 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:22:03,985 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 23:22:03,985 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-23 23:22:03,986 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:22:03,991 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:22:03,993 INFO  L85        PathProgramCache]: Analyzing trace with hash 248448068, now seen corresponding path program 1 times
[2024-11-23 23:22:03,993 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:22:03,993 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364812566]
[2024-11-23 23:22:03,994 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:22:03,994 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:22:06,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:22:12,576 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:22:12,576 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:22:12,576 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364812566]
[2024-11-23 23:22:12,576 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364812566] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:22:12,576 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:22:12,577 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-23 23:22:12,577 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299992591]
[2024-11-23 23:22:12,577 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:22:12,579 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-23 23:22:12,579 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:22:12,581 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-23 23:22:12,581 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-23 23:22:12,582 INFO  L87              Difference]: Start difference. First operand 4732 states and 7087 transitions. Second operand  has 7 states, 7 states have (on average 335.85714285714283) internal successors, (2351), 7 states have internal predecessors, (2351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:14,483 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-23 23:22:18,568 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-23 23:22:21,746 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-23 23:22:22,292 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:22:22,292 INFO  L93              Difference]: Finished difference Result 11698 states and 17525 transitions.
[2024-11-23 23:22:22,292 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-23 23:22:22,293 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 335.85714285714283) internal successors, (2351), 7 states have internal predecessors, (2351), 0 states have call successors, (0), 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 2351
[2024-11-23 23:22:22,296 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:22:22,306 INFO  L225             Difference]: With dead ends: 11698
[2024-11-23 23:22:22,306 INFO  L226             Difference]: Without dead ends: 4742
[2024-11-23 23:22:22,312 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90
[2024-11-23 23:22:22,313 INFO  L435           NwaCegarLoop]: 6748 mSDtfsCounter, 13029 mSDsluCounter, 26808 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13029 SdHoareTripleChecker+Valid, 33556 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time
[2024-11-23 23:22:22,313 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [13029 Valid, 33556 Invalid, 392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 373 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time]
[2024-11-23 23:22:22,319 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4742 states.
[2024-11-23 23:22:22,371 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4742 to 4734.
[2024-11-23 23:22:22,378 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4734 states, 4733 states have (on average 1.4977815339108387) internal successors, (7089), 4733 states have internal predecessors, (7089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:22,385 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4734 states to 4734 states and 7089 transitions.
[2024-11-23 23:22:22,386 INFO  L78                 Accepts]: Start accepts. Automaton has 4734 states and 7089 transitions. Word has length 2351
[2024-11-23 23:22:22,386 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:22:22,386 INFO  L471      AbstractCegarLoop]: Abstraction has 4734 states and 7089 transitions.
[2024-11-23 23:22:22,387 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 335.85714285714283) internal successors, (2351), 7 states have internal predecessors, (2351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:22,387 INFO  L276                IsEmpty]: Start isEmpty. Operand 4734 states and 7089 transitions.
[2024-11-23 23:22:22,432 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2353
[2024-11-23 23:22:22,433 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:22:22,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2024-11-23 23:22:22,434 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-23 23:22:22,434 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:22:22,436 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:22:22,437 INFO  L85        PathProgramCache]: Analyzing trace with hash -1643674859, now seen corresponding path program 1 times
[2024-11-23 23:22:22,437 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:22:22,437 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77490239]
[2024-11-23 23:22:22,438 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:22:22,438 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:22:23,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:22:26,068 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:22:26,068 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:22:26,068 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77490239]
[2024-11-23 23:22:26,069 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77490239] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:22:26,069 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:22:26,069 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:22:26,069 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509131301]
[2024-11-23 23:22:26,069 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:22:26,071 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:22:26,071 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:22:26,073 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:22:26,073 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:22:26,074 INFO  L87              Difference]: Start difference. First operand 4734 states and 7089 transitions. Second operand  has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:27,354 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:22:27,354 INFO  L93              Difference]: Finished difference Result 11689 states and 17510 transitions.
[2024-11-23 23:22:27,355 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:22:27,356 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 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 2352
[2024-11-23 23:22:27,361 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:22:27,384 INFO  L225             Difference]: With dead ends: 11689
[2024-11-23 23:22:27,384 INFO  L226             Difference]: Without dead ends: 4737
[2024-11-23 23:22:27,394 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:22:27,395 INFO  L435           NwaCegarLoop]: 6718 mSDtfsCounter, 2536 mSDsluCounter, 13301 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2536 SdHoareTripleChecker+Valid, 20019 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-23 23:22:27,395 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2536 Valid, 20019 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-23 23:22:27,402 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4737 states.
[2024-11-23 23:22:27,452 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4737 to 4736.
[2024-11-23 23:22:27,460 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4736 states, 4735 states have (on average 1.4977824709609293) internal successors, (7092), 4735 states have internal predecessors, (7092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:27,493 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4736 states to 4736 states and 7092 transitions.
[2024-11-23 23:22:27,501 INFO  L78                 Accepts]: Start accepts. Automaton has 4736 states and 7092 transitions. Word has length 2352
[2024-11-23 23:22:27,502 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:22:27,502 INFO  L471      AbstractCegarLoop]: Abstraction has 4736 states and 7092 transitions.
[2024-11-23 23:22:27,503 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 588.0) internal successors, (2352), 4 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:27,506 INFO  L276                IsEmpty]: Start isEmpty. Operand 4736 states and 7092 transitions.
[2024-11-23 23:22:27,593 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2353
[2024-11-23 23:22:27,596 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:22:27,598 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2024-11-23 23:22:27,601 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-23 23:22:27,601 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:22:27,627 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:22:27,628 INFO  L85        PathProgramCache]: Analyzing trace with hash 1106004772, now seen corresponding path program 1 times
[2024-11-23 23:22:27,631 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:22:27,631 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342920797]
[2024-11-23 23:22:27,632 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:22:27,633 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:22:30,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:22:36,050 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:22:36,051 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:22:36,051 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342920797]
[2024-11-23 23:22:36,051 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342920797] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:22:36,051 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:22:36,052 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-23 23:22:36,052 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90424502]
[2024-11-23 23:22:36,052 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:22:36,054 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 23:22:36,054 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:22:36,056 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 23:22:36,056 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-23 23:22:36,057 INFO  L87              Difference]: Start difference. First operand 4736 states and 7092 transitions. Second operand  has 6 states, 6 states have (on average 392.0) internal successors, (2352), 6 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:37,260 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:22:37,260 INFO  L93              Difference]: Finished difference Result 9124 states and 13663 transitions.
[2024-11-23 23:22:37,261 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-23 23:22:37,262 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 392.0) internal successors, (2352), 6 states have internal predecessors, (2352), 0 states have call successors, (0), 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 2352
[2024-11-23 23:22:37,262 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:22:37,272 INFO  L225             Difference]: With dead ends: 9124
[2024-11-23 23:22:37,273 INFO  L226             Difference]: Without dead ends: 4746
[2024-11-23 23:22:37,277 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
[2024-11-23 23:22:37,278 INFO  L435           NwaCegarLoop]: 6485 mSDtfsCounter, 13202 mSDsluCounter, 6482 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13202 SdHoareTripleChecker+Valid, 12967 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:22:37,278 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [13202 Valid, 12967 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2024-11-23 23:22:37,284 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4746 states.
[2024-11-23 23:22:37,334 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4746 to 4737.
[2024-11-23 23:22:37,340 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4737 states, 4736 states have (on average 1.497677364864865) internal successors, (7093), 4736 states have internal predecessors, (7093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:37,347 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4737 states to 4737 states and 7093 transitions.
[2024-11-23 23:22:37,347 INFO  L78                 Accepts]: Start accepts. Automaton has 4737 states and 7093 transitions. Word has length 2352
[2024-11-23 23:22:37,348 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:22:37,348 INFO  L471      AbstractCegarLoop]: Abstraction has 4737 states and 7093 transitions.
[2024-11-23 23:22:37,348 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 392.0) internal successors, (2352), 6 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:37,349 INFO  L276                IsEmpty]: Start isEmpty. Operand 4737 states and 7093 transitions.
[2024-11-23 23:22:37,392 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2353
[2024-11-23 23:22:37,392 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:22:37,394 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2024-11-23 23:22:37,394 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-23 23:22:37,394 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:22:37,395 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:22:37,396 INFO  L85        PathProgramCache]: Analyzing trace with hash 1753184814, now seen corresponding path program 1 times
[2024-11-23 23:22:37,396 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:22:37,397 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332942002]
[2024-11-23 23:22:37,397 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:22:37,397 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:22:40,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:22:52,138 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:22:52,138 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:22:52,138 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332942002]
[2024-11-23 23:22:52,138 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332942002] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:22:52,138 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:22:52,139 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-23 23:22:52,139 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865722959]
[2024-11-23 23:22:52,139 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:22:52,140 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-23 23:22:52,140 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:22:52,141 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-23 23:22:52,141 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110
[2024-11-23 23:22:52,142 INFO  L87              Difference]: Start difference. First operand 4737 states and 7093 transitions. Second operand  has 11 states, 11 states have (on average 213.8181818181818) internal successors, (2352), 11 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:54,064 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:22:54,064 INFO  L93              Difference]: Finished difference Result 11720 states and 17554 transitions.
[2024-11-23 23:22:54,065 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2024-11-23 23:22:54,065 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 213.8181818181818) internal successors, (2352), 11 states have internal predecessors, (2352), 0 states have call successors, (0), 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 2352
[2024-11-23 23:22:54,066 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:22:54,074 INFO  L225             Difference]: With dead ends: 11720
[2024-11-23 23:22:54,074 INFO  L226             Difference]: Without dead ends: 4748
[2024-11-23 23:22:54,079 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210
[2024-11-23 23:22:54,079 INFO  L435           NwaCegarLoop]: 6760 mSDtfsCounter, 23328 mSDsluCounter, 46198 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23328 SdHoareTripleChecker+Valid, 52958 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-11-23 23:22:54,080 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [23328 Valid, 52958 Invalid, 1409 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-11-23 23:22:54,086 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4748 states.
[2024-11-23 23:22:54,137 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 4745.
[2024-11-23 23:22:54,142 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4745 states, 4744 states have (on average 1.4974704890387858) internal successors, (7104), 4744 states have internal predecessors, (7104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:54,152 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4745 states to 4745 states and 7104 transitions.
[2024-11-23 23:22:54,152 INFO  L78                 Accepts]: Start accepts. Automaton has 4745 states and 7104 transitions. Word has length 2352
[2024-11-23 23:22:54,153 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:22:54,153 INFO  L471      AbstractCegarLoop]: Abstraction has 4745 states and 7104 transitions.
[2024-11-23 23:22:54,154 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 213.8181818181818) internal successors, (2352), 11 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:22:54,154 INFO  L276                IsEmpty]: Start isEmpty. Operand 4745 states and 7104 transitions.
[2024-11-23 23:22:54,198 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2354
[2024-11-23 23:22:54,199 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:22:54,200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 1, 1, 1, 1, 1, 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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]
[2024-11-23 23:22:54,200 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-23 23:22:54,200 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:22:54,201 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:22:54,202 INFO  L85        PathProgramCache]: Analyzing trace with hash 1080894499, now seen corresponding path program 1 times
[2024-11-23 23:22:54,202 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:22:54,202 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138554535]
[2024-11-23 23:22:54,203 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:22:54,203 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:22:56,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:23:00,313 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:23:00,313 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:23:00,313 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138554535]
[2024-11-23 23:23:00,313 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138554535] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:23:00,313 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:23:00,313 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 23:23:00,313 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951505705]
[2024-11-23 23:23:00,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:23:00,315 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:23:00,315 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:23:00,316 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:23:00,316 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:23:00,316 INFO  L87              Difference]: Start difference. First operand 4745 states and 7104 transitions. Second operand  has 5 states, 5 states have (on average 470.6) internal successors, (2353), 5 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:23:00,843 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:23:00,843 INFO  L93              Difference]: Finished difference Result 9132 states and 13672 transitions.
[2024-11-23 23:23:00,843 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:23:00,844 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 470.6) internal successors, (2353), 5 states have internal predecessors, (2353), 0 states have call successors, (0), 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 2353
[2024-11-23 23:23:00,844 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:23:00,851 INFO  L225             Difference]: With dead ends: 9132
[2024-11-23 23:23:00,851 INFO  L226             Difference]: Without dead ends: 4745
[2024-11-23 23:23:00,855 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
[2024-11-23 23:23:00,855 INFO  L435           NwaCegarLoop]: 6584 mSDtfsCounter, 6784 mSDsluCounter, 6582 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6784 SdHoareTripleChecker+Valid, 13166 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-23 23:23:00,856 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6784 Valid, 13166 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-23 23:23:00,862 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4745 states.
[2024-11-23 23:23:00,910 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4745 to 4745.
[2024-11-23 23:23:00,915 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4745 states, 4744 states have (on average 1.4972596964586846) internal successors, (7103), 4744 states have internal predecessors, (7103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:23:00,922 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4745 states to 4745 states and 7103 transitions.
[2024-11-23 23:23:00,923 INFO  L78                 Accepts]: Start accepts. Automaton has 4745 states and 7103 transitions. Word has length 2353
[2024-11-23 23:23:00,923 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:23:00,923 INFO  L471      AbstractCegarLoop]: Abstraction has 4745 states and 7103 transitions.
[2024-11-23 23:23:00,924 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 470.6) internal successors, (2353), 5 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:23:00,924 INFO  L276                IsEmpty]: Start isEmpty. Operand 4745 states and 7103 transitions.
[2024-11-23 23:23:00,968 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2354
[2024-11-23 23:23:00,968 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:23:00,969 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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, 1, 1, 1, 1, 1, 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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]
[2024-11-23 23:23:00,970 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-23 23:23:00,970 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:23:00,971 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:23:00,971 INFO  L85        PathProgramCache]: Analyzing trace with hash 1543589556, now seen corresponding path program 1 times
[2024-11-23 23:23:00,971 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:23:00,972 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006321077]
[2024-11-23 23:23:00,972 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:23:00,972 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:23:03,392 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:23:07,566 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:23:07,566 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:23:07,567 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006321077]
[2024-11-23 23:23:07,567 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006321077] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:23:07,567 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:23:07,567 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-23 23:23:07,567 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102522118]
[2024-11-23 23:23:07,567 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:23:07,569 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 23:23:07,569 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:23:07,571 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 23:23:07,571 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-23 23:23:07,571 INFO  L87              Difference]: Start difference. First operand 4745 states and 7103 transitions. Second operand  has 6 states, 6 states have (on average 392.1666666666667) internal successors, (2353), 6 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:23:08,018 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:23:08,019 INFO  L93              Difference]: Finished difference Result 11704 states and 17525 transitions.
[2024-11-23 23:23:08,019 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-23 23:23:08,019 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 392.1666666666667) internal successors, (2353), 6 states have internal predecessors, (2353), 0 states have call successors, (0), 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 2353
[2024-11-23 23:23:08,021 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:23:08,026 INFO  L225             Difference]: With dead ends: 11704
[2024-11-23 23:23:08,026 INFO  L226             Difference]: Without dead ends: 4745
[2024-11-23 23:23:08,033 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72
[2024-11-23 23:23:08,033 INFO  L435           NwaCegarLoop]: 6751 mSDtfsCounter, 12980 mSDsluCounter, 20073 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12980 SdHoareTripleChecker+Valid, 26824 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-23 23:23:08,033 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12980 Valid, 26824 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-23 23:23:08,040 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4745 states.
[2024-11-23 23:23:08,091 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4745 to 4745.
[2024-11-23 23:23:08,096 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4745 states, 4744 states have (on average 1.4970489038785835) internal successors, (7102), 4744 states have internal predecessors, (7102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:23:08,103 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4745 states to 4745 states and 7102 transitions.
[2024-11-23 23:23:08,104 INFO  L78                 Accepts]: Start accepts. Automaton has 4745 states and 7102 transitions. Word has length 2353
[2024-11-23 23:23:08,104 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:23:08,105 INFO  L471      AbstractCegarLoop]: Abstraction has 4745 states and 7102 transitions.
[2024-11-23 23:23:08,105 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 392.1666666666667) internal successors, (2353), 6 states have internal predecessors, (2353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:23:08,105 INFO  L276                IsEmpty]: Start isEmpty. Operand 4745 states and 7102 transitions.
[2024-11-23 23:23:08,356 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2355
[2024-11-23 23:23:08,356 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:23:08,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2024-11-23 23:23:08,358 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-23 23:23:08,358 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:23:08,359 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:23:08,360 INFO  L85        PathProgramCache]: Analyzing trace with hash 2136314628, now seen corresponding path program 1 times
[2024-11-23 23:23:08,360 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:23:08,360 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394909917]
[2024-11-23 23:23:08,360 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:23:08,360 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:23:10,601 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:23:15,636 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:23:15,636 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:23:15,636 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394909917]
[2024-11-23 23:23:15,636 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394909917] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:23:15,636 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:23:15,636 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-23 23:23:15,636 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625637993]
[2024-11-23 23:23:15,637 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:23:15,638 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 23:23:15,639 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:23:15,640 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 23:23:15,640 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-23 23:23:15,641 INFO  L87              Difference]: Start difference. First operand 4745 states and 7102 transitions. Second operand  has 6 states, 6 states have (on average 392.3333333333333) internal successors, (2354), 6 states have internal predecessors, (2354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:23:16,508 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:23:16,508 INFO  L93              Difference]: Finished difference Result 9138 states and 13677 transitions.
[2024-11-23 23:23:16,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-23 23:23:16,509 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 392.3333333333333) internal successors, (2354), 6 states have internal predecessors, (2354), 0 states have call successors, (0), 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 2354
[2024-11-23 23:23:16,509 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:23:16,516 INFO  L225             Difference]: With dead ends: 9138
[2024-11-23 23:23:16,516 INFO  L226             Difference]: Without dead ends: 4751
[2024-11-23 23:23:16,519 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
[2024-11-23 23:23:16,519 INFO  L435           NwaCegarLoop]: 6485 mSDtfsCounter, 6612 mSDsluCounter, 6484 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6612 SdHoareTripleChecker+Valid, 12969 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-23 23:23:16,520 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6612 Valid, 12969 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-23 23:23:16,525 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4751 states.
[2024-11-23 23:23:16,574 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4751 to 4745.
[2024-11-23 23:23:16,579 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4745 states, 4744 states have (on average 1.4968381112984823) internal successors, (7101), 4744 states have internal predecessors, (7101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:23:16,587 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4745 states to 4745 states and 7101 transitions.
[2024-11-23 23:23:16,587 INFO  L78                 Accepts]: Start accepts. Automaton has 4745 states and 7101 transitions. Word has length 2354
[2024-11-23 23:23:16,588 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:23:16,588 INFO  L471      AbstractCegarLoop]: Abstraction has 4745 states and 7101 transitions.
[2024-11-23 23:23:16,588 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 392.3333333333333) internal successors, (2354), 6 states have internal predecessors, (2354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 23:23:16,589 INFO  L276                IsEmpty]: Start isEmpty. Operand 4745 states and 7101 transitions.
[2024-11-23 23:23:16,632 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2356
[2024-11-23 23:23:16,632 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:23:16,633 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-23 23:23:16,634 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-23 23:23:16,634 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:23:16,635 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:23:16,636 INFO  L85        PathProgramCache]: Analyzing trace with hash 436156587, now seen corresponding path program 1 times
[2024-11-23 23:23:16,636 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:23:16,636 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190766503]
[2024-11-23 23:23:16,636 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:23:16,637 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:23:18,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat