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


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


Checking for ERROR reachability
Using default analysis
Version 0e0057cc
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya --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 2764290314b59114fad4b5e99003f9c9d5f5074a8228bf05362ffae0612dd3fa
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-29 05:39:52,127 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-29 05:39:52,196 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf
[2023-11-29 05:39:52,201 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-29 05:39:52,201 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-29 05:39:52,227 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-29 05:39:52,227 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-29 05:39:52,228 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-29 05:39:52,229 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-29 05:39:52,229 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-29 05:39:52,230 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-29 05:39:52,231 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-29 05:39:52,232 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-29 05:39:52,232 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-29 05:39:52,233 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-29 05:39:52,234 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-29 05:39:52,234 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-29 05:39:52,235 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-29 05:39:52,235 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-29 05:39:52,236 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-29 05:39:52,236 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-29 05:39:52,238 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-29 05:39:52,238 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-29 05:39:52,239 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-29 05:39:52,239 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-29 05:39:52,240 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-29 05:39:52,240 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-29 05:39:52,240 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-29 05:39:52,241 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-29 05:39:52,241 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-29 05:39:52,242 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-29 05:39:52,242 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-29 05:39:52,242 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-29 05:39:52,243 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-29 05:39:52,243 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-29 05:39:52,243 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-29 05:39:52,243 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-29 05:39:52,244 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-29 05:39:52,244 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-29 05:39:52,244 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya
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 -> 2764290314b59114fad4b5e99003f9c9d5f5074a8228bf05362ffae0612dd3fa
[2023-11-29 05:39:52,486 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-29 05:39:52,526 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-29 05:39:52,530 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-29 05:39:52,531 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-29 05:39:52,532 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-29 05:39:52,533 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.3.prop1-back-serstep.c
[2023-11-29 05:39:55,887 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-29 05:39:56,828 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-29 05:39:56,829 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.3.prop1-back-serstep.c
[2023-11-29 05:39:56,911 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/data/d5b95a7d4/cc0180122ab54b5fab43c09d944bafa7/FLAG09855f690
[2023-11-29 05:39:56,927 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/data/d5b95a7d4/cc0180122ab54b5fab43c09d944bafa7
[2023-11-29 05:39:56,930 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-29 05:39:56,932 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-29 05:39:56,934 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-29 05:39:56,934 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-29 05:39:56,940 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-29 05:39:56,941 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:39:56" (1/1) ...
[2023-11-29 05:39:56,943 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea54423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:39:56, skipping insertion in model container
[2023-11-29 05:39:56,943 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:39:56" (1/1) ...
[2023-11-29 05:39:57,386 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-29 05:39:57,863 WARN  L240   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_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.3.prop1-back-serstep.c[1181,1194]
[2023-11-29 05:40:00,778 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-29 05:40:00,791 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-29 05:40:00,807 WARN  L240   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_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.firewire_tree.3.prop1-back-serstep.c[1181,1194]
[2023-11-29 05:40:03,073 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-29 05:40:03,087 INFO  L206         MainTranslator]: Completed translation
[2023-11-29 05:40:03,087 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03 WrapperNode
[2023-11-29 05:40:03,087 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-29 05:40:03,088 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-29 05:40:03,088 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-29 05:40:03,089 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-29 05:40:03,096 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:03,657 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:12,600 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 127675
[2023-11-29 05:40:12,600 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-29 05:40:12,601 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-29 05:40:12,601 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-29 05:40:12,601 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-29 05:40:12,614 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:12,614 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:15,387 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:16,337 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].
[2023-11-29 05:40:16,337 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:16,337 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:19,031 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:19,425 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:19,827 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:20,196 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:21,901 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-29 05:40:21,902 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-29 05:40:21,902 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-29 05:40:21,902 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-29 05:40:21,903 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (1/1) ...
[2023-11-29 05:40:21,908 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-29 05:40:21,920 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/z3
[2023-11-29 05:40:21,933 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-29 05:40:21,935 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4fd5a37a-b7e5-415d-83b7-8203a9f57df5/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-29 05:40:21,961 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-29 05:40:21,961 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-29 05:40:21,961 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-29 05:40:21,962 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-29 05:40:26,823 INFO  L241             CfgBuilder]: Building ICFG
[2023-11-29 05:40:26,825 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-29 05:41:25,439 INFO  L282             CfgBuilder]: Performing block encoding
[2023-11-29 05:41:26,872 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-29 05:41:26,873 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-29 05:41:26,885 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:41:26 BoogieIcfgContainer
[2023-11-29 05:41:26,886 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-29 05:41:26,888 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-29 05:41:26,888 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-29 05:41:26,892 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-29 05:41:26,892 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:39:56" (1/3) ...
[2023-11-29 05:41:26,893 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271bc348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:41:26, skipping insertion in model container
[2023-11-29 05:41:26,893 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:40:03" (2/3) ...
[2023-11-29 05:41:26,894 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@271bc348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:41:26, skipping insertion in model container
[2023-11-29 05:41:26,894 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:41:26" (3/3) ...
[2023-11-29 05:41:26,895 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.firewire_tree.3.prop1-back-serstep.c
[2023-11-29 05:41:26,915 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-29 05:41:26,915 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-29 05:41:27,293 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-29 05:41:27,300 INFO  L357      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, mHoare=true, 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;@15820632, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-29 05:41:27,301 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-29 05:41:27,388 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 28144 states, 28142 states have (on average 1.6671878331319736) internal successors, (46918), 28143 states have internal predecessors, (46918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:41:27,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3029
[2023-11-29 05:41:27,777 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:41:27,780 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-11-29 05:41:27,781 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:41:27,792 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:41:27,794 INFO  L85        PathProgramCache]: Analyzing trace with hash -1784619402, now seen corresponding path program 1 times
[2023-11-29 05:41:27,805 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:41:27,805 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874686954]
[2023-11-29 05:41:27,807 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:41:27,807 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:41:30,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:41:41,917 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:41:41,917 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:41:41,918 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874686954]
[2023-11-29 05:41:41,918 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874686954] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:41:41,918 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:41:41,919 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:41:41,921 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825671382]
[2023-11-29 05:41:41,922 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:41:41,931 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:41:41,931 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:41:41,962 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:41:41,962 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:41:41,996 INFO  L87              Difference]: Start difference. First operand  has 28144 states, 28142 states have (on average 1.6671878331319736) internal successors, (46918), 28143 states have internal predecessors, (46918), 0 states have call successors, (0), 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 757.0) internal successors, (3028), 4 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:41:43,477 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:41:43,477 INFO  L93              Difference]: Finished difference Result 55354 states and 92282 transitions.
[2023-11-29 05:41:43,479 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 05:41:43,481 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 757.0) internal successors, (3028), 4 states have internal predecessors, (3028), 0 states have call successors, (0), 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 3028
[2023-11-29 05:41:43,490 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:41:43,651 INFO  L225             Difference]: With dead ends: 55354
[2023-11-29 05:41:43,651 INFO  L226             Difference]: Without dead ends: 28144
[2023-11-29 05:41:43,693 INFO  L412           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
[2023-11-29 05:41:43,696 INFO  L413           NwaCegarLoop]: 46911 mSDtfsCounter, 1 mSDsluCounter, 93817 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 140728 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:41:43,698 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 140728 Invalid, 13 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:41:43,776 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28144 states.
[2023-11-29 05:41:44,293 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28144 to 28144.
[2023-11-29 05:41:44,341 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28144 states, 28143 states have (on average 1.6670575276267634) internal successors, (46916), 28143 states have internal predecessors, (46916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:41:44,471 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28144 states to 28144 states and 46916 transitions.
[2023-11-29 05:41:44,472 INFO  L78                 Accepts]: Start accepts. Automaton has 28144 states and 46916 transitions. Word has length 3028
[2023-11-29 05:41:44,478 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:41:44,478 INFO  L495      AbstractCegarLoop]: Abstraction has 28144 states and 46916 transitions.
[2023-11-29 05:41:44,479 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 757.0) internal successors, (3028), 4 states have internal predecessors, (3028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:41:44,479 INFO  L276                IsEmpty]: Start isEmpty. Operand 28144 states and 46916 transitions.
[2023-11-29 05:41:44,670 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3030
[2023-11-29 05:41:44,670 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:41:44,672 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:41:44,672 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-29 05:41:44,672 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:41:44,673 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:41:44,674 INFO  L85        PathProgramCache]: Analyzing trace with hash 513116478, now seen corresponding path program 1 times
[2023-11-29 05:41:44,674 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:41:44,674 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255604571]
[2023-11-29 05:41:44,675 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:41:44,676 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:41:46,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:41:53,015 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:41:53,015 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:41:53,016 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255604571]
[2023-11-29 05:41:53,016 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255604571] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:41:53,016 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:41:53,017 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:41:53,017 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572925029]
[2023-11-29 05:41:53,018 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:41:53,024 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:41:53,025 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:41:53,028 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:41:53,028 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:41:53,029 INFO  L87              Difference]: Start difference. First operand 28144 states and 46916 transitions. Second operand  has 4 states, 4 states have (on average 757.25) internal successors, (3029), 4 states have internal predecessors, (3029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:41:53,832 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:41:53,833 INFO  L93              Difference]: Finished difference Result 55357 states and 92280 transitions.
[2023-11-29 05:41:53,833 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-29 05:41:53,834 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 757.25) internal successors, (3029), 4 states have internal predecessors, (3029), 0 states have call successors, (0), 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 3029
[2023-11-29 05:41:53,839 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:41:53,879 INFO  L225             Difference]: With dead ends: 55357
[2023-11-29 05:41:53,879 INFO  L226             Difference]: Without dead ends: 28147
[2023-11-29 05:41:53,909 INFO  L412           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
[2023-11-29 05:41:53,910 INFO  L413           NwaCegarLoop]: 46911 mSDtfsCounter, 1 mSDsluCounter, 93815 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 140726 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:41:53,911 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 140726 Invalid, 15 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:41:54,034 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28147 states.
[2023-11-29 05:41:54,428 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28147 to 28146.
[2023-11-29 05:41:54,462 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28146 states, 28145 states have (on average 1.667010126132528) internal successors, (46918), 28145 states have internal predecessors, (46918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:41:54,510 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28146 states to 28146 states and 46918 transitions.
[2023-11-29 05:41:54,511 INFO  L78                 Accepts]: Start accepts. Automaton has 28146 states and 46918 transitions. Word has length 3029
[2023-11-29 05:41:54,516 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:41:54,516 INFO  L495      AbstractCegarLoop]: Abstraction has 28146 states and 46918 transitions.
[2023-11-29 05:41:54,517 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 757.25) internal successors, (3029), 4 states have internal predecessors, (3029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:41:54,517 INFO  L276                IsEmpty]: Start isEmpty. Operand 28146 states and 46918 transitions.
[2023-11-29 05:41:54,590 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3031
[2023-11-29 05:41:54,590 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:41:54,593 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:41:54,593 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-29 05:41:54,593 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:41:54,594 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:41:54,595 INFO  L85        PathProgramCache]: Analyzing trace with hash -1483672688, now seen corresponding path program 1 times
[2023-11-29 05:41:54,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:41:54,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23759212]
[2023-11-29 05:41:54,596 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:41:54,597 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:41:56,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:42:02,113 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:42:02,113 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:42:02,113 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23759212]
[2023-11-29 05:42:02,113 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23759212] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:42:02,114 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:42:02,115 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:42:02,115 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938593426]
[2023-11-29 05:42:02,115 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:42:02,118 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:42:02,119 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:42:02,122 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:42:02,122 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:42:02,124 INFO  L87              Difference]: Start difference. First operand 28146 states and 46918 transitions. Second operand  has 4 states, 4 states have (on average 757.5) internal successors, (3030), 4 states have internal predecessors, (3030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:42:03,377 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:42:03,378 INFO  L93              Difference]: Finished difference Result 82564 states and 137633 transitions.
[2023-11-29 05:42:03,378 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:42:03,379 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 757.5) internal successors, (3030), 4 states have internal predecessors, (3030), 0 states have call successors, (0), 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 3030
[2023-11-29 05:42:03,385 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:42:03,429 INFO  L225             Difference]: With dead ends: 82564
[2023-11-29 05:42:03,429 INFO  L226             Difference]: Without dead ends: 55352
[2023-11-29 05:42:03,445 INFO  L412           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
[2023-11-29 05:42:03,446 INFO  L413           NwaCegarLoop]: 52906 mSDtfsCounter, 45349 mSDsluCounter, 99808 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45349 SdHoareTripleChecker+Valid, 152714 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:42:03,447 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45349 Valid, 152714 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:42:03,493 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55352 states.
[2023-11-29 05:42:03,828 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55352 to 28148.
[2023-11-29 05:42:03,856 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28148 states, 28147 states have (on average 1.6669627313745692) internal successors, (46920), 28147 states have internal predecessors, (46920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:42:03,894 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28148 states to 28148 states and 46920 transitions.
[2023-11-29 05:42:03,894 INFO  L78                 Accepts]: Start accepts. Automaton has 28148 states and 46920 transitions. Word has length 3030
[2023-11-29 05:42:03,898 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:42:03,899 INFO  L495      AbstractCegarLoop]: Abstraction has 28148 states and 46920 transitions.
[2023-11-29 05:42:03,899 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 757.5) internal successors, (3030), 4 states have internal predecessors, (3030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:42:03,899 INFO  L276                IsEmpty]: Start isEmpty. Operand 28148 states and 46920 transitions.
[2023-11-29 05:42:03,946 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3032
[2023-11-29 05:42:03,946 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:42:03,948 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:42:03,949 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-29 05:42:03,949 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:42:03,949 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:42:03,950 INFO  L85        PathProgramCache]: Analyzing trace with hash -1837282462, now seen corresponding path program 1 times
[2023-11-29 05:42:03,951 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:42:03,951 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290354909]
[2023-11-29 05:42:03,951 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:42:03,952 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:42:05,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:42:11,941 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:42:11,942 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:42:11,942 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290354909]
[2023-11-29 05:42:11,942 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290354909] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:42:11,942 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:42:11,943 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:42:11,943 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770862109]
[2023-11-29 05:42:11,943 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:42:11,947 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:42:11,947 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:42:11,950 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:42:11,950 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:42:11,951 INFO  L87              Difference]: Start difference. First operand 28148 states and 46920 transitions. Second operand  has 4 states, 4 states have (on average 757.75) internal successors, (3031), 4 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:42:12,894 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:42:12,894 INFO  L93              Difference]: Finished difference Result 82567 states and 137634 transitions.
[2023-11-29 05:42:12,895 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:42:12,895 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 757.75) internal successors, (3031), 4 states have internal predecessors, (3031), 0 states have call successors, (0), 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 3031
[2023-11-29 05:42:12,902 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:42:12,957 INFO  L225             Difference]: With dead ends: 82567
[2023-11-29 05:42:12,957 INFO  L226             Difference]: Without dead ends: 55353
[2023-11-29 05:42:12,976 INFO  L412           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
[2023-11-29 05:42:12,977 INFO  L413           NwaCegarLoop]: 52901 mSDtfsCounter, 45346 mSDsluCounter, 99803 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45346 SdHoareTripleChecker+Valid, 152704 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:42:12,977 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45346 Valid, 152704 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:42:13,042 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55353 states.
[2023-11-29 05:42:13,406 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55353 to 28150.
[2023-11-29 05:42:13,436 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28150 states, 28149 states have (on average 1.6669153433514512) internal successors, (46922), 28149 states have internal predecessors, (46922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:42:13,484 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28150 states to 28150 states and 46922 transitions.
[2023-11-29 05:42:13,484 INFO  L78                 Accepts]: Start accepts. Automaton has 28150 states and 46922 transitions. Word has length 3031
[2023-11-29 05:42:13,487 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:42:13,487 INFO  L495      AbstractCegarLoop]: Abstraction has 28150 states and 46922 transitions.
[2023-11-29 05:42:13,488 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 757.75) internal successors, (3031), 4 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:42:13,488 INFO  L276                IsEmpty]: Start isEmpty. Operand 28150 states and 46922 transitions.
[2023-11-29 05:42:13,562 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3033
[2023-11-29 05:42:13,562 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:42:13,564 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:42:13,564 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-29 05:42:13,565 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:42:13,565 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:42:13,567 INFO  L85        PathProgramCache]: Analyzing trace with hash -703444760, now seen corresponding path program 1 times
[2023-11-29 05:42:13,567 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:42:13,567 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616153500]
[2023-11-29 05:42:13,568 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:42:13,568 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:42:16,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:42:22,417 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:42:22,417 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:42:22,417 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616153500]
[2023-11-29 05:42:22,417 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616153500] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:42:22,417 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:42:22,418 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:42:22,418 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105332535]
[2023-11-29 05:42:22,419 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:42:22,421 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-29 05:42:22,422 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:42:22,424 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-29 05:42:22,424 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:42:22,425 INFO  L87              Difference]: Start difference. First operand 28150 states and 46922 transitions. Second operand  has 6 states, 6 states have (on average 505.3333333333333) internal successors, (3032), 5 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:42:48,228 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:42:48,228 INFO  L93              Difference]: Finished difference Result 130087 states and 215294 transitions.
[2023-11-29 05:42:48,229 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2023-11-29 05:42:48,230 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 505.3333333333333) internal successors, (3032), 5 states have internal predecessors, (3032), 0 states have call successors, (0), 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 3032
[2023-11-29 05:42:48,233 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:42:48,289 INFO  L225             Difference]: With dead ends: 130087
[2023-11-29 05:42:48,289 INFO  L226             Difference]: Without dead ends: 55366
[2023-11-29 05:42:48,334 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2023-11-29 05:42:48,335 INFO  L413           NwaCegarLoop]: 46160 mSDtfsCounter, 315192 mSDsluCounter, 126039 mSDsCounter, 0 mSdLazyCounter, 19244 mSolverCounterSat, 4655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315192 SdHoareTripleChecker+Valid, 172199 SdHoareTripleChecker+Invalid, 23899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.8s SdHoareTripleChecker+Time, 4655 IncrementalHoareTripleChecker+Valid, 19244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time
[2023-11-29 05:42:48,336 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [315192 Valid, 172199 Invalid, 23899 Unknown, 0 Unchecked, 0.8s Time], IncrementalHoareTripleChecker [4655 Valid, 19244 Invalid, 0 Unknown, 0 Unchecked, 23.0s Time]
[2023-11-29 05:42:48,403 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55366 states.
[2023-11-29 05:42:48,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55366 to 30411.
[2023-11-29 05:42:48,831 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30411 states, 30410 states have (on average 1.6668530088786584) internal successors, (50689), 30410 states have internal predecessors, (50689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:42:48,869 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30411 states to 30411 states and 50689 transitions.
[2023-11-29 05:42:48,869 INFO  L78                 Accepts]: Start accepts. Automaton has 30411 states and 50689 transitions. Word has length 3032
[2023-11-29 05:42:48,871 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:42:48,871 INFO  L495      AbstractCegarLoop]: Abstraction has 30411 states and 50689 transitions.
[2023-11-29 05:42:48,872 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 505.3333333333333) internal successors, (3032), 5 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:42:48,872 INFO  L276                IsEmpty]: Start isEmpty. Operand 30411 states and 50689 transitions.
[2023-11-29 05:42:48,922 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3034
[2023-11-29 05:42:48,922 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:42:48,925 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:42:48,925 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-29 05:42:48,926 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:42:48,926 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:42:48,928 INFO  L85        PathProgramCache]: Analyzing trace with hash -939828470, now seen corresponding path program 1 times
[2023-11-29 05:42:48,928 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:42:48,928 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976203235]
[2023-11-29 05:42:48,929 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:42:48,929 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:42:51,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:42:58,527 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:42:58,527 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:42:58,527 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976203235]
[2023-11-29 05:42:58,528 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976203235] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:42:58,528 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:42:58,528 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:42:58,529 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729092969]
[2023-11-29 05:42:58,529 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:42:58,532 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-29 05:42:58,532 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:42:58,535 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-29 05:42:58,536 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:42:58,537 INFO  L87              Difference]: Start difference. First operand 30411 states and 50689 transitions. Second operand  has 6 states, 6 states have (on average 505.5) internal successors, (3033), 5 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:31,456 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:43:31,456 INFO  L93              Difference]: Finished difference Result 83830 states and 139524 transitions.
[2023-11-29 05:43:31,457 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 05:43:31,457 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 505.5) internal successors, (3033), 5 states have internal predecessors, (3033), 0 states have call successors, (0), 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 3033
[2023-11-29 05:43:31,459 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:43:31,502 INFO  L225             Difference]: With dead ends: 83830
[2023-11-29 05:43:31,502 INFO  L226             Difference]: Without dead ends: 56614
[2023-11-29 05:43:31,526 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-11-29 05:43:31,527 INFO  L413           NwaCegarLoop]: 38221 mSDtfsCounter, 136118 mSDsluCounter, 118761 mSDsCounter, 0 mSdLazyCounter, 34415 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136118 SdHoareTripleChecker+Valid, 156982 SdHoareTripleChecker+Invalid, 35039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 34415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time
[2023-11-29 05:43:31,528 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [136118 Valid, 156982 Invalid, 35039 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [624 Valid, 34415 Invalid, 0 Unknown, 0 Unchecked, 30.8s Time]
[2023-11-29 05:43:31,597 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56614 states.
[2023-11-29 05:43:31,965 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56614 to 30417.
[2023-11-29 05:43:31,995 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30417 states, 30416 states have (on average 1.6668200946870069) internal successors, (50698), 30416 states have internal predecessors, (50698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:32,041 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30417 states to 30417 states and 50698 transitions.
[2023-11-29 05:43:32,042 INFO  L78                 Accepts]: Start accepts. Automaton has 30417 states and 50698 transitions. Word has length 3033
[2023-11-29 05:43:32,044 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:43:32,044 INFO  L495      AbstractCegarLoop]: Abstraction has 30417 states and 50698 transitions.
[2023-11-29 05:43:32,045 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 505.5) internal successors, (3033), 5 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:32,045 INFO  L276                IsEmpty]: Start isEmpty. Operand 30417 states and 50698 transitions.
[2023-11-29 05:43:32,091 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3035
[2023-11-29 05:43:32,091 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:43:32,094 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:43:32,095 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-29 05:43:32,095 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:43:32,095 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:43:32,097 INFO  L85        PathProgramCache]: Analyzing trace with hash -1539888548, now seen corresponding path program 1 times
[2023-11-29 05:43:32,097 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:43:32,097 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935010545]
[2023-11-29 05:43:32,098 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:43:32,098 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:43:33,577 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:43:40,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:43:40,368 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:43:40,368 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935010545]
[2023-11-29 05:43:40,368 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935010545] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:43:40,368 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:43:40,369 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:43:40,369 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948659919]
[2023-11-29 05:43:40,369 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:43:40,372 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:43:40,372 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:43:40,375 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:43:40,375 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:43:40,376 INFO  L87              Difference]: Start difference. First operand 30417 states and 50698 transitions. Second operand  has 5 states, 5 states have (on average 606.8) internal successors, (3034), 5 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:41,408 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:43:41,408 INFO  L93              Difference]: Finished difference Result 84837 states and 141411 transitions.
[2023-11-29 05:43:41,408 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:43:41,409 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 606.8) internal successors, (3034), 5 states have internal predecessors, (3034), 0 states have call successors, (0), 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 3034
[2023-11-29 05:43:41,412 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:43:41,465 INFO  L225             Difference]: With dead ends: 84837
[2023-11-29 05:43:41,465 INFO  L226             Difference]: Without dead ends: 57621
[2023-11-29 05:43:41,495 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:43:41,496 INFO  L413           NwaCegarLoop]: 52894 mSDtfsCounter, 45343 mSDsluCounter, 145138 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45343 SdHoareTripleChecker+Valid, 198032 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:43:41,496 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45343 Valid, 198032 Invalid, 23 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:43:41,554 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57621 states.
[2023-11-29 05:43:41,882 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57621 to 30419.
[2023-11-29 05:43:41,909 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30419 states, 30418 states have (on average 1.66677625090407) internal successors, (50700), 30418 states have internal predecessors, (50700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:41,950 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30419 states to 30419 states and 50700 transitions.
[2023-11-29 05:43:41,950 INFO  L78                 Accepts]: Start accepts. Automaton has 30419 states and 50700 transitions. Word has length 3034
[2023-11-29 05:43:41,952 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:43:41,952 INFO  L495      AbstractCegarLoop]: Abstraction has 30419 states and 50700 transitions.
[2023-11-29 05:43:41,953 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 606.8) internal successors, (3034), 5 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:41,953 INFO  L276                IsEmpty]: Start isEmpty. Operand 30419 states and 50700 transitions.
[2023-11-29 05:43:42,006 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3036
[2023-11-29 05:43:42,006 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:43:42,007 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-11-29 05:43:42,008 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-29 05:43:42,008 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:43:42,008 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:43:42,009 INFO  L85        PathProgramCache]: Analyzing trace with hash -335377836, now seen corresponding path program 1 times
[2023-11-29 05:43:42,009 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:43:42,009 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582419669]
[2023-11-29 05:43:42,009 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:43:42,009 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:43:43,190 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:43:48,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:43:48,883 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:43:48,883 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582419669]
[2023-11-29 05:43:48,883 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582419669] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:43:48,884 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:43:48,884 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:43:48,884 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608334368]
[2023-11-29 05:43:48,885 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:43:48,888 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:43:48,888 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:43:48,891 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:43:48,891 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:43:48,892 INFO  L87              Difference]: Start difference. First operand 30419 states and 50700 transitions. Second operand  has 5 states, 5 states have (on average 607.0) internal successors, (3035), 5 states have internal predecessors, (3035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:49,957 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:43:49,957 INFO  L93              Difference]: Finished difference Result 84840 states and 141412 transitions.
[2023-11-29 05:43:49,958 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:43:49,958 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 607.0) internal successors, (3035), 5 states have internal predecessors, (3035), 0 states have call successors, (0), 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 3035
[2023-11-29 05:43:49,961 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:43:50,000 INFO  L225             Difference]: With dead ends: 84840
[2023-11-29 05:43:50,000 INFO  L226             Difference]: Without dead ends: 57622
[2023-11-29 05:43:50,021 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:43:50,022 INFO  L413           NwaCegarLoop]: 52889 mSDtfsCounter, 45340 mSDsluCounter, 145130 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45340 SdHoareTripleChecker+Valid, 198019 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:43:50,022 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45340 Valid, 198019 Invalid, 23 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:43:50,075 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57622 states.
[2023-11-29 05:43:50,428 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57622 to 30421.
[2023-11-29 05:43:50,454 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30421 states, 30420 states have (on average 1.666732412886259) internal successors, (50702), 30420 states have internal predecessors, (50702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:50,489 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30421 states to 30421 states and 50702 transitions.
[2023-11-29 05:43:50,489 INFO  L78                 Accepts]: Start accepts. Automaton has 30421 states and 50702 transitions. Word has length 3035
[2023-11-29 05:43:50,491 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:43:50,491 INFO  L495      AbstractCegarLoop]: Abstraction has 30421 states and 50702 transitions.
[2023-11-29 05:43:50,491 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 607.0) internal successors, (3035), 5 states have internal predecessors, (3035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:50,491 INFO  L276                IsEmpty]: Start isEmpty. Operand 30421 states and 50702 transitions.
[2023-11-29 05:43:50,535 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3037
[2023-11-29 05:43:50,535 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:43:50,536 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:43:50,537 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-29 05:43:50,537 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:43:50,537 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:43:50,538 INFO  L85        PathProgramCache]: Analyzing trace with hash -871199114, now seen corresponding path program 1 times
[2023-11-29 05:43:50,538 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:43:50,538 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630036994]
[2023-11-29 05:43:50,538 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:43:50,538 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:43:51,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:43:57,469 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:43:57,470 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:43:57,470 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630036994]
[2023-11-29 05:43:57,470 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630036994] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:43:57,470 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:43:57,471 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:43:57,471 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916091215]
[2023-11-29 05:43:57,471 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:43:57,475 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:43:57,475 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:43:57,478 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:43:57,478 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:43:57,479 INFO  L87              Difference]: Start difference. First operand 30421 states and 50702 transitions. Second operand  has 5 states, 5 states have (on average 607.2) internal successors, (3036), 5 states have internal predecessors, (3036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:58,542 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:43:58,542 INFO  L93              Difference]: Finished difference Result 84843 states and 141413 transitions.
[2023-11-29 05:43:58,543 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:43:58,543 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 607.2) internal successors, (3036), 5 states have internal predecessors, (3036), 0 states have call successors, (0), 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 3036
[2023-11-29 05:43:58,546 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:43:58,586 INFO  L225             Difference]: With dead ends: 84843
[2023-11-29 05:43:58,586 INFO  L226             Difference]: Without dead ends: 57623
[2023-11-29 05:43:58,609 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:43:58,609 INFO  L413           NwaCegarLoop]: 52884 mSDtfsCounter, 45337 mSDsluCounter, 145122 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45337 SdHoareTripleChecker+Valid, 198006 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:43:58,610 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45337 Valid, 198006 Invalid, 23 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:43:58,666 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57623 states.
[2023-11-29 05:43:59,013 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57623 to 30423.
[2023-11-29 05:43:59,041 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30423 states, 30422 states have (on average 1.666688580632437) internal successors, (50704), 30422 states have internal predecessors, (50704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:59,079 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30423 states to 30423 states and 50704 transitions.
[2023-11-29 05:43:59,080 INFO  L78                 Accepts]: Start accepts. Automaton has 30423 states and 50704 transitions. Word has length 3036
[2023-11-29 05:43:59,082 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:43:59,082 INFO  L495      AbstractCegarLoop]: Abstraction has 30423 states and 50704 transitions.
[2023-11-29 05:43:59,083 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 607.2) internal successors, (3036), 5 states have internal predecessors, (3036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:43:59,083 INFO  L276                IsEmpty]: Start isEmpty. Operand 30423 states and 50704 transitions.
[2023-11-29 05:43:59,128 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3038
[2023-11-29 05:43:59,128 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:43:59,129 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-11-29 05:43:59,129 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-11-29 05:43:59,130 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:43:59,130 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:43:59,131 INFO  L85        PathProgramCache]: Analyzing trace with hash -1338716040, now seen corresponding path program 1 times
[2023-11-29 05:43:59,131 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:43:59,131 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250578261]
[2023-11-29 05:43:59,131 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:43:59,131 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:44:00,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:44:06,139 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:44:06,139 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:44:06,139 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250578261]
[2023-11-29 05:44:06,139 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250578261] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:44:06,140 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:44:06,140 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:44:06,140 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559263299]
[2023-11-29 05:44:06,140 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:44:06,142 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:44:06,142 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:44:06,144 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:44:06,145 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:44:06,145 INFO  L87              Difference]: Start difference. First operand 30423 states and 50704 transitions. Second operand  has 4 states, 4 states have (on average 759.25) internal successors, (3037), 4 states have internal predecessors, (3037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:44:06,999 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:44:06,999 INFO  L93              Difference]: Finished difference Result 84846 states and 141414 transitions.
[2023-11-29 05:44:06,999 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:44:07,000 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 759.25) internal successors, (3037), 4 states have internal predecessors, (3037), 0 states have call successors, (0), 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 3037
[2023-11-29 05:44:07,003 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:44:07,042 INFO  L225             Difference]: With dead ends: 84846
[2023-11-29 05:44:07,043 INFO  L226             Difference]: Without dead ends: 57624
[2023-11-29 05:44:07,063 INFO  L412           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
[2023-11-29 05:44:07,064 INFO  L413           NwaCegarLoop]: 52879 mSDtfsCounter, 45334 mSDsluCounter, 99781 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45334 SdHoareTripleChecker+Valid, 152660 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-29 05:44:07,064 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45334 Valid, 152660 Invalid, 19 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-29 05:44:07,115 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57624 states.
[2023-11-29 05:44:07,564 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57624 to 30425.
[2023-11-29 05:44:07,592 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30425 states, 30424 states have (on average 1.6666447541414673) internal successors, (50706), 30424 states have internal predecessors, (50706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:44:07,633 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30425 states to 30425 states and 50706 transitions.
[2023-11-29 05:44:07,633 INFO  L78                 Accepts]: Start accepts. Automaton has 30425 states and 50706 transitions. Word has length 3037
[2023-11-29 05:44:07,636 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:44:07,636 INFO  L495      AbstractCegarLoop]: Abstraction has 30425 states and 50706 transitions.
[2023-11-29 05:44:07,636 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 759.25) internal successors, (3037), 4 states have internal predecessors, (3037), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:44:07,637 INFO  L276                IsEmpty]: Start isEmpty. Operand 30425 states and 50706 transitions.
[2023-11-29 05:44:07,685 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3039
[2023-11-29 05:44:07,685 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:44:07,686 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:44:07,686 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-11-29 05:44:07,687 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:44:07,687 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:44:07,688 INFO  L85        PathProgramCache]: Analyzing trace with hash 1340687822, now seen corresponding path program 1 times
[2023-11-29 05:44:07,688 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:44:07,688 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232458352]
[2023-11-29 05:44:07,688 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:44:07,689 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:44:10,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:44:16,752 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:44:16,753 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:44:16,753 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232458352]
[2023-11-29 05:44:16,753 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232458352] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:44:16,753 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:44:16,754 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:44:16,754 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297892417]
[2023-11-29 05:44:16,754 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:44:16,758 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-29 05:44:16,759 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:44:16,761 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-29 05:44:16,761 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:44:16,762 INFO  L87              Difference]: Start difference. First operand 30425 states and 50706 transitions. Second operand  has 6 states, 6 states have (on average 506.3333333333333) internal successors, (3038), 5 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:44:52,889 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:44:52,889 INFO  L93              Difference]: Finished difference Result 83854 states and 139547 transitions.
[2023-11-29 05:44:52,890 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 05:44:52,890 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 506.3333333333333) internal successors, (3038), 5 states have internal predecessors, (3038), 0 states have call successors, (0), 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 3038
[2023-11-29 05:44:52,893 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:44:52,929 INFO  L225             Difference]: With dead ends: 83854
[2023-11-29 05:44:52,929 INFO  L226             Difference]: Without dead ends: 56630
[2023-11-29 05:44:52,942 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-11-29 05:44:52,943 INFO  L413           NwaCegarLoop]: 38222 mSDtfsCounter, 136111 mSDsluCounter, 118761 mSDsCounter, 0 mSdLazyCounter, 34414 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136111 SdHoareTripleChecker+Valid, 156983 SdHoareTripleChecker+Invalid, 35038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.7s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 34414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.0s IncrementalHoareTripleChecker+Time
[2023-11-29 05:44:52,944 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [136111 Valid, 156983 Invalid, 35038 Unknown, 0 Unchecked, 0.7s Time], IncrementalHoareTripleChecker [624 Valid, 34414 Invalid, 0 Unknown, 0 Unchecked, 34.0s Time]
[2023-11-29 05:44:53,011 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56630 states.
[2023-11-29 05:44:53,439 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56630 to 30431.
[2023-11-29 05:44:53,478 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30431 states, 30430 states have (on average 1.6666118961551102) internal successors, (50715), 30430 states have internal predecessors, (50715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:44:53,537 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30431 states to 30431 states and 50715 transitions.
[2023-11-29 05:44:53,537 INFO  L78                 Accepts]: Start accepts. Automaton has 30431 states and 50715 transitions. Word has length 3038
[2023-11-29 05:44:53,539 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:44:53,539 INFO  L495      AbstractCegarLoop]: Abstraction has 30431 states and 50715 transitions.
[2023-11-29 05:44:53,540 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 506.3333333333333) internal successors, (3038), 5 states have internal predecessors, (3038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:44:53,540 INFO  L276                IsEmpty]: Start isEmpty. Operand 30431 states and 50715 transitions.
[2023-11-29 05:44:53,607 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3040
[2023-11-29 05:44:53,607 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:44:53,609 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:44:53,609 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-11-29 05:44:53,609 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:44:53,610 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:44:53,611 INFO  L85        PathProgramCache]: Analyzing trace with hash 950458096, now seen corresponding path program 1 times
[2023-11-29 05:44:53,611 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:44:53,611 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723980613]
[2023-11-29 05:44:53,612 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:44:53,612 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:44:55,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:45:03,702 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:45:03,702 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:45:03,703 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723980613]
[2023-11-29 05:45:03,703 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723980613] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:45:03,703 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:45:03,704 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:45:03,704 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966408814]
[2023-11-29 05:45:03,704 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:45:03,707 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:45:03,707 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:45:03,710 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:45:03,710 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:45:03,711 INFO  L87              Difference]: Start difference. First operand 30431 states and 50715 transitions. Second operand  has 5 states, 5 states have (on average 607.8) internal successors, (3039), 5 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:04,756 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:45:04,757 INFO  L93              Difference]: Finished difference Result 84855 states and 141424 transitions.
[2023-11-29 05:45:04,757 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:45:04,758 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 607.8) internal successors, (3039), 5 states have internal predecessors, (3039), 0 states have call successors, (0), 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 3039
[2023-11-29 05:45:04,760 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:45:04,802 INFO  L225             Difference]: With dead ends: 84855
[2023-11-29 05:45:04,802 INFO  L226             Difference]: Without dead ends: 57631
[2023-11-29 05:45:04,822 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:45:04,822 INFO  L413           NwaCegarLoop]: 52873 mSDtfsCounter, 45331 mSDsluCounter, 145105 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45331 SdHoareTripleChecker+Valid, 197978 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:45:04,822 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45331 Valid, 197978 Invalid, 23 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:45:04,877 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57631 states.
[2023-11-29 05:45:05,185 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57631 to 30433.
[2023-11-29 05:45:05,213 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30433 states, 30432 states have (on average 1.6665680862250263) internal successors, (50717), 30432 states have internal predecessors, (50717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:05,249 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30433 states to 30433 states and 50717 transitions.
[2023-11-29 05:45:05,250 INFO  L78                 Accepts]: Start accepts. Automaton has 30433 states and 50717 transitions. Word has length 3039
[2023-11-29 05:45:05,251 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:45:05,251 INFO  L495      AbstractCegarLoop]: Abstraction has 30433 states and 50717 transitions.
[2023-11-29 05:45:05,252 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 607.8) internal successors, (3039), 5 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:05,252 INFO  L276                IsEmpty]: Start isEmpty. Operand 30433 states and 50717 transitions.
[2023-11-29 05:45:05,296 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3041
[2023-11-29 05:45:05,296 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:45:05,298 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:45:05,298 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-11-29 05:45:05,298 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:45:05,298 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:45:05,299 INFO  L85        PathProgramCache]: Analyzing trace with hash 1027589756, now seen corresponding path program 1 times
[2023-11-29 05:45:05,299 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:45:05,299 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141968440]
[2023-11-29 05:45:05,300 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:45:05,300 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:45:06,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:45:13,604 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:45:13,604 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:45:13,605 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141968440]
[2023-11-29 05:45:13,605 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141968440] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:45:13,605 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:45:13,605 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:45:13,605 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138723181]
[2023-11-29 05:45:13,606 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:45:13,608 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:45:13,608 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:45:13,611 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:45:13,611 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:45:13,612 INFO  L87              Difference]: Start difference. First operand 30433 states and 50717 transitions. Second operand  has 5 states, 5 states have (on average 608.0) internal successors, (3040), 5 states have internal predecessors, (3040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:14,926 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:45:14,927 INFO  L93              Difference]: Finished difference Result 84858 states and 141425 transitions.
[2023-11-29 05:45:14,927 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:45:14,928 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 608.0) internal successors, (3040), 5 states have internal predecessors, (3040), 0 states have call successors, (0), 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 3040
[2023-11-29 05:45:14,930 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:45:14,969 INFO  L225             Difference]: With dead ends: 84858
[2023-11-29 05:45:14,970 INFO  L226             Difference]: Without dead ends: 57632
[2023-11-29 05:45:14,989 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:45:14,989 INFO  L413           NwaCegarLoop]: 52868 mSDtfsCounter, 45328 mSDsluCounter, 145097 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45328 SdHoareTripleChecker+Valid, 197965 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:45:14,990 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45328 Valid, 197965 Invalid, 23 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:45:15,050 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57632 states.
[2023-11-29 05:45:15,414 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57632 to 30435.
[2023-11-29 05:45:15,446 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30435 states, 30434 states have (on average 1.666524282052967) internal successors, (50719), 30434 states have internal predecessors, (50719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:15,491 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30435 states to 30435 states and 50719 transitions.
[2023-11-29 05:45:15,491 INFO  L78                 Accepts]: Start accepts. Automaton has 30435 states and 50719 transitions. Word has length 3040
[2023-11-29 05:45:15,493 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:45:15,493 INFO  L495      AbstractCegarLoop]: Abstraction has 30435 states and 50719 transitions.
[2023-11-29 05:45:15,493 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 608.0) internal successors, (3040), 5 states have internal predecessors, (3040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:15,493 INFO  L276                IsEmpty]: Start isEmpty. Operand 30435 states and 50719 transitions.
[2023-11-29 05:45:15,550 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3042
[2023-11-29 05:45:15,550 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:45:15,552 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:45:15,552 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-11-29 05:45:15,552 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:45:15,553 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:45:15,554 INFO  L85        PathProgramCache]: Analyzing trace with hash -1231858038, now seen corresponding path program 1 times
[2023-11-29 05:45:15,554 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:45:15,554 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128852035]
[2023-11-29 05:45:15,555 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:45:15,555 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:45:17,188 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:45:23,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:45:23,621 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:45:23,621 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128852035]
[2023-11-29 05:45:23,621 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128852035] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:45:23,621 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:45:23,621 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:45:23,622 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506773306]
[2023-11-29 05:45:23,622 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:45:23,624 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:45:23,624 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:45:23,627 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:45:23,627 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:45:23,628 INFO  L87              Difference]: Start difference. First operand 30435 states and 50719 transitions. Second operand  has 5 states, 5 states have (on average 608.2) internal successors, (3041), 5 states have internal predecessors, (3041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:25,105 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:45:25,106 INFO  L93              Difference]: Finished difference Result 84861 states and 141426 transitions.
[2023-11-29 05:45:25,106 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:45:25,107 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 608.2) internal successors, (3041), 5 states have internal predecessors, (3041), 0 states have call successors, (0), 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 3041
[2023-11-29 05:45:25,109 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:45:25,142 INFO  L225             Difference]: With dead ends: 84861
[2023-11-29 05:45:25,142 INFO  L226             Difference]: Without dead ends: 57633
[2023-11-29 05:45:25,154 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:45:25,154 INFO  L413           NwaCegarLoop]: 52863 mSDtfsCounter, 45325 mSDsluCounter, 152625 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45325 SdHoareTripleChecker+Valid, 205488 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-11-29 05:45:25,155 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45325 Valid, 205488 Invalid, 27 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-11-29 05:45:25,207 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57633 states.
[2023-11-29 05:45:25,543 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57633 to 30437.
[2023-11-29 05:45:25,574 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30437 states, 30436 states have (on average 1.6664804836377973) internal successors, (50721), 30436 states have internal predecessors, (50721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:25,618 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30437 states to 30437 states and 50721 transitions.
[2023-11-29 05:45:25,618 INFO  L78                 Accepts]: Start accepts. Automaton has 30437 states and 50721 transitions. Word has length 3041
[2023-11-29 05:45:25,620 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:45:25,620 INFO  L495      AbstractCegarLoop]: Abstraction has 30437 states and 50721 transitions.
[2023-11-29 05:45:25,621 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 608.2) internal successors, (3041), 5 states have internal predecessors, (3041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:25,621 INFO  L276                IsEmpty]: Start isEmpty. Operand 30437 states and 50721 transitions.
[2023-11-29 05:45:25,673 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3043
[2023-11-29 05:45:25,673 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:45:25,674 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:45:25,675 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2023-11-29 05:45:25,675 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:45:25,675 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:45:25,677 INFO  L85        PathProgramCache]: Analyzing trace with hash -1661217760, now seen corresponding path program 1 times
[2023-11-29 05:45:25,677 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:45:25,677 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144056807]
[2023-11-29 05:45:25,678 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:45:25,678 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:45:27,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:45:33,725 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:45:33,725 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:45:33,725 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144056807]
[2023-11-29 05:45:33,725 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144056807] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:45:33,725 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:45:33,726 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:45:33,726 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618309670]
[2023-11-29 05:45:33,727 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:45:33,730 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:45:33,731 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:45:33,734 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:45:33,735 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:45:33,736 INFO  L87              Difference]: Start difference. First operand 30437 states and 50721 transitions. Second operand  has 4 states, 4 states have (on average 760.5) internal successors, (3042), 4 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:34,631 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:45:34,631 INFO  L93              Difference]: Finished difference Result 84864 states and 141427 transitions.
[2023-11-29 05:45:34,632 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:45:34,633 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 760.5) internal successors, (3042), 4 states have internal predecessors, (3042), 0 states have call successors, (0), 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 3042
[2023-11-29 05:45:34,635 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:45:34,677 INFO  L225             Difference]: With dead ends: 84864
[2023-11-29 05:45:34,678 INFO  L226             Difference]: Without dead ends: 57634
[2023-11-29 05:45:34,700 INFO  L412           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
[2023-11-29 05:45:34,701 INFO  L413           NwaCegarLoop]: 52858 mSDtfsCounter, 45322 mSDsluCounter, 99760 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45322 SdHoareTripleChecker+Valid, 152618 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:45:34,701 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45322 Valid, 152618 Invalid, 19 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:45:34,758 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57634 states.
[2023-11-29 05:45:35,088 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57634 to 30439.
[2023-11-29 05:45:35,118 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30439 states, 30438 states have (on average 1.6664366909783823) internal successors, (50723), 30438 states have internal predecessors, (50723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:35,158 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30439 states to 30439 states and 50723 transitions.
[2023-11-29 05:45:35,158 INFO  L78                 Accepts]: Start accepts. Automaton has 30439 states and 50723 transitions. Word has length 3042
[2023-11-29 05:45:35,160 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:45:35,160 INFO  L495      AbstractCegarLoop]: Abstraction has 30439 states and 50723 transitions.
[2023-11-29 05:45:35,161 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 760.5) internal successors, (3042), 4 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:35,161 INFO  L276                IsEmpty]: Start isEmpty. Operand 30439 states and 50723 transitions.
[2023-11-29 05:45:35,209 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3044
[2023-11-29 05:45:35,209 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:45:35,210 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:45:35,211 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2023-11-29 05:45:35,211 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:45:35,211 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:45:35,212 INFO  L85        PathProgramCache]: Analyzing trace with hash -494953374, now seen corresponding path program 1 times
[2023-11-29 05:45:35,212 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:45:35,212 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823585767]
[2023-11-29 05:45:35,212 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:45:35,213 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:45:36,613 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:45:43,678 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:45:43,678 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:45:43,678 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823585767]
[2023-11-29 05:45:43,678 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823585767] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:45:43,678 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:45:43,680 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:45:43,680 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854641987]
[2023-11-29 05:45:43,680 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:45:43,685 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:45:43,685 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:45:43,689 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:45:43,690 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:45:43,691 INFO  L87              Difference]: Start difference. First operand 30439 states and 50723 transitions. Second operand  has 4 states, 4 states have (on average 760.75) internal successors, (3043), 4 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:45,002 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:45:45,002 INFO  L93              Difference]: Finished difference Result 84867 states and 141428 transitions.
[2023-11-29 05:45:45,003 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:45:45,004 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 760.75) internal successors, (3043), 4 states have internal predecessors, (3043), 0 states have call successors, (0), 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 3043
[2023-11-29 05:45:45,006 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:45:45,055 INFO  L225             Difference]: With dead ends: 84867
[2023-11-29 05:45:45,055 INFO  L226             Difference]: Without dead ends: 57635
[2023-11-29 05:45:45,077 INFO  L412           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
[2023-11-29 05:45:45,078 INFO  L413           NwaCegarLoop]: 52853 mSDtfsCounter, 45319 mSDsluCounter, 99755 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45319 SdHoareTripleChecker+Valid, 152608 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:45:45,078 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45319 Valid, 152608 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:45:45,145 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57635 states.
[2023-11-29 05:45:45,584 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57635 to 30441.
[2023-11-29 05:45:45,623 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30441 states, 30440 states have (on average 1.6663929040735874) internal successors, (50725), 30440 states have internal predecessors, (50725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:45,682 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30441 states to 30441 states and 50725 transitions.
[2023-11-29 05:45:45,682 INFO  L78                 Accepts]: Start accepts. Automaton has 30441 states and 50725 transitions. Word has length 3043
[2023-11-29 05:45:45,684 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:45:45,685 INFO  L495      AbstractCegarLoop]: Abstraction has 30441 states and 50725 transitions.
[2023-11-29 05:45:45,685 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 760.75) internal successors, (3043), 4 states have internal predecessors, (3043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:45,686 INFO  L276                IsEmpty]: Start isEmpty. Operand 30441 states and 50725 transitions.
[2023-11-29 05:45:45,746 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3045
[2023-11-29 05:45:45,746 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:45:45,747 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:45:45,747 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2023-11-29 05:45:45,748 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:45:45,748 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:45:45,749 INFO  L85        PathProgramCache]: Analyzing trace with hash 916163462, now seen corresponding path program 1 times
[2023-11-29 05:45:45,749 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:45:45,749 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734357509]
[2023-11-29 05:45:45,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:45:45,750 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:45:47,810 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:45:55,186 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:45:55,186 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:45:55,186 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734357509]
[2023-11-29 05:45:55,186 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734357509] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:45:55,186 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:45:55,186 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:45:55,187 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919906512]
[2023-11-29 05:45:55,187 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:45:55,189 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:45:55,189 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:45:55,191 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:45:55,191 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:45:55,192 INFO  L87              Difference]: Start difference. First operand 30441 states and 50725 transitions. Second operand  has 5 states, 5 states have (on average 608.8) internal successors, (3044), 5 states have internal predecessors, (3044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:56,379 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:45:56,379 INFO  L93              Difference]: Finished difference Result 84870 states and 141429 transitions.
[2023-11-29 05:45:56,379 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:45:56,380 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 608.8) internal successors, (3044), 5 states have internal predecessors, (3044), 0 states have call successors, (0), 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 3044
[2023-11-29 05:45:56,382 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:45:56,428 INFO  L225             Difference]: With dead ends: 84870
[2023-11-29 05:45:56,428 INFO  L226             Difference]: Without dead ends: 57636
[2023-11-29 05:45:56,451 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:45:56,452 INFO  L413           NwaCegarLoop]: 52848 mSDtfsCounter, 45316 mSDsluCounter, 145065 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45316 SdHoareTripleChecker+Valid, 197913 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-29 05:45:56,453 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45316 Valid, 197913 Invalid, 23 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-29 05:45:56,518 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57636 states.
[2023-11-29 05:45:56,961 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57636 to 30443.
[2023-11-29 05:45:56,992 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30443 states, 30442 states have (on average 1.6663491229222784) internal successors, (50727), 30442 states have internal predecessors, (50727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:57,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30443 states to 30443 states and 50727 transitions.
[2023-11-29 05:45:57,034 INFO  L78                 Accepts]: Start accepts. Automaton has 30443 states and 50727 transitions. Word has length 3044
[2023-11-29 05:45:57,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:45:57,036 INFO  L495      AbstractCegarLoop]: Abstraction has 30443 states and 50727 transitions.
[2023-11-29 05:45:57,037 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 608.8) internal successors, (3044), 5 states have internal predecessors, (3044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:45:57,037 INFO  L276                IsEmpty]: Start isEmpty. Operand 30443 states and 50727 transitions.
[2023-11-29 05:45:57,090 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3046
[2023-11-29 05:45:57,090 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:45:57,091 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:45:57,091 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2023-11-29 05:45:57,091 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:45:57,092 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:45:57,093 INFO  L85        PathProgramCache]: Analyzing trace with hash 1924511740, now seen corresponding path program 1 times
[2023-11-29 05:45:57,093 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:45:57,093 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306927783]
[2023-11-29 05:45:57,093 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:45:57,093 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:45:58,419 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:46:05,110 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:46:05,110 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:46:05,110 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306927783]
[2023-11-29 05:46:05,110 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306927783] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:46:05,111 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:46:05,111 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:46:05,111 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506317143]
[2023-11-29 05:46:05,111 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:46:05,114 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:46:05,114 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:46:05,117 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:46:05,117 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:46:05,118 INFO  L87              Difference]: Start difference. First operand 30443 states and 50727 transitions. Second operand  has 4 states, 4 states have (on average 761.25) internal successors, (3045), 4 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:46:06,190 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:46:06,190 INFO  L93              Difference]: Finished difference Result 84873 states and 141430 transitions.
[2023-11-29 05:46:06,190 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:46:06,191 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 761.25) internal successors, (3045), 4 states have internal predecessors, (3045), 0 states have call successors, (0), 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 3045
[2023-11-29 05:46:06,194 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:46:06,241 INFO  L225             Difference]: With dead ends: 84873
[2023-11-29 05:46:06,241 INFO  L226             Difference]: Without dead ends: 57637
[2023-11-29 05:46:06,265 INFO  L412           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
[2023-11-29 05:46:06,266 INFO  L413           NwaCegarLoop]: 52843 mSDtfsCounter, 45313 mSDsluCounter, 99745 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45313 SdHoareTripleChecker+Valid, 152588 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:46:06,266 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45313 Valid, 152588 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:46:06,331 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57637 states.
[2023-11-29 05:46:06,704 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57637 to 30445.
[2023-11-29 05:46:06,736 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30445 states, 30444 states have (on average 1.6663053475233216) internal successors, (50729), 30444 states have internal predecessors, (50729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:46:06,778 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30445 states to 30445 states and 50729 transitions.
[2023-11-29 05:46:06,778 INFO  L78                 Accepts]: Start accepts. Automaton has 30445 states and 50729 transitions. Word has length 3045
[2023-11-29 05:46:06,780 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:46:06,780 INFO  L495      AbstractCegarLoop]: Abstraction has 30445 states and 50729 transitions.
[2023-11-29 05:46:06,781 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 761.25) internal successors, (3045), 4 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:46:06,781 INFO  L276                IsEmpty]: Start isEmpty. Operand 30445 states and 50729 transitions.
[2023-11-29 05:46:06,833 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3047
[2023-11-29 05:46:06,833 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:46:06,835 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:46:06,835 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2023-11-29 05:46:06,835 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:46:06,835 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:46:06,836 INFO  L85        PathProgramCache]: Analyzing trace with hash 1579446314, now seen corresponding path program 1 times
[2023-11-29 05:46:06,836 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:46:06,836 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39583917]
[2023-11-29 05:46:06,837 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:46:06,837 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:46:08,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:46:14,196 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:46:14,196 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:46:14,196 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39583917]
[2023-11-29 05:46:14,196 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39583917] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:46:14,196 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:46:14,197 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:46:14,197 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980917316]
[2023-11-29 05:46:14,197 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:46:14,199 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:46:14,199 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:46:14,201 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:46:14,201 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:46:14,202 INFO  L87              Difference]: Start difference. First operand 30445 states and 50729 transitions. Second operand  has 4 states, 4 states have (on average 761.5) internal successors, (3046), 4 states have internal predecessors, (3046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:46:15,097 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:46:15,097 INFO  L93              Difference]: Finished difference Result 84876 states and 141431 transitions.
[2023-11-29 05:46:15,098 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:46:15,098 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 761.5) internal successors, (3046), 4 states have internal predecessors, (3046), 0 states have call successors, (0), 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 3046
[2023-11-29 05:46:15,101 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:46:15,140 INFO  L225             Difference]: With dead ends: 84876
[2023-11-29 05:46:15,140 INFO  L226             Difference]: Without dead ends: 57638
[2023-11-29 05:46:15,156 INFO  L412           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
[2023-11-29 05:46:15,156 INFO  L413           NwaCegarLoop]: 52838 mSDtfsCounter, 45310 mSDsluCounter, 99740 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45310 SdHoareTripleChecker+Valid, 152578 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-29 05:46:15,157 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45310 Valid, 152578 Invalid, 19 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-29 05:46:15,207 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57638 states.
[2023-11-29 05:46:15,509 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57638 to 30447.
[2023-11-29 05:46:15,536 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30447 states, 30446 states have (on average 1.666261577875583) internal successors, (50731), 30446 states have internal predecessors, (50731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:46:15,573 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30447 states to 30447 states and 50731 transitions.
[2023-11-29 05:46:15,573 INFO  L78                 Accepts]: Start accepts. Automaton has 30447 states and 50731 transitions. Word has length 3046
[2023-11-29 05:46:15,574 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:46:15,575 INFO  L495      AbstractCegarLoop]: Abstraction has 30447 states and 50731 transitions.
[2023-11-29 05:46:15,575 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 761.5) internal successors, (3046), 4 states have internal predecessors, (3046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:46:15,575 INFO  L276                IsEmpty]: Start isEmpty. Operand 30447 states and 50731 transitions.
[2023-11-29 05:46:15,618 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3048
[2023-11-29 05:46:15,618 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:46:15,619 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:46:15,619 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2023-11-29 05:46:15,619 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:46:15,619 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:46:15,620 INFO  L85        PathProgramCache]: Analyzing trace with hash 1852665044, now seen corresponding path program 1 times
[2023-11-29 05:46:15,620 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:46:15,620 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215400210]
[2023-11-29 05:46:15,621 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:46:15,621 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:46:18,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:46:27,357 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:46:27,357 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:46:27,357 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215400210]
[2023-11-29 05:46:27,358 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215400210] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:46:27,358 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:46:27,359 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:46:27,359 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199181058]
[2023-11-29 05:46:27,359 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:46:27,363 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:46:27,363 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:46:27,366 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:46:27,367 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:46:27,368 INFO  L87              Difference]: Start difference. First operand 30447 states and 50731 transitions. Second operand  has 5 states, 5 states have (on average 609.4) internal successors, (3047), 4 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:02,433 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:47:02,433 INFO  L93              Difference]: Finished difference Result 82654 states and 137723 transitions.
[2023-11-29 05:47:02,434 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:47:02,434 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 609.4) internal successors, (3047), 4 states have internal predecessors, (3047), 0 states have call successors, (0), 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 3047
[2023-11-29 05:47:02,436 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:47:02,482 INFO  L225             Difference]: With dead ends: 82654
[2023-11-29 05:47:02,482 INFO  L226             Difference]: Without dead ends: 55414
[2023-11-29 05:47:02,507 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-11-29 05:47:02,508 INFO  L413           NwaCegarLoop]: 35618 mSDtfsCounter, 135484 mSDsluCounter, 71229 mSDsCounter, 0 mSdLazyCounter, 33894 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135484 SdHoareTripleChecker+Valid, 106847 SdHoareTripleChecker+Invalid, 33894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time
[2023-11-29 05:47:02,508 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [135484 Valid, 106847 Invalid, 33894 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [0 Valid, 33894 Invalid, 0 Unknown, 0 Unchecked, 33.4s Time]
[2023-11-29 05:47:02,569 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55414 states.
[2023-11-29 05:47:02,999 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55414 to 30448.
[2023-11-29 05:47:03,027 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30448 states, 30447 states have (on average 1.6662396952080665) internal successors, (50732), 30447 states have internal predecessors, (50732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:03,065 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30448 states to 30448 states and 50732 transitions.
[2023-11-29 05:47:03,065 INFO  L78                 Accepts]: Start accepts. Automaton has 30448 states and 50732 transitions. Word has length 3047
[2023-11-29 05:47:03,066 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:47:03,067 INFO  L495      AbstractCegarLoop]: Abstraction has 30448 states and 50732 transitions.
[2023-11-29 05:47:03,067 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 609.4) internal successors, (3047), 4 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:03,067 INFO  L276                IsEmpty]: Start isEmpty. Operand 30448 states and 50732 transitions.
[2023-11-29 05:47:03,116 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3048
[2023-11-29 05:47:03,116 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:47:03,117 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:47:03,117 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2023-11-29 05:47:03,118 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:47:03,118 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:47:03,118 INFO  L85        PathProgramCache]: Analyzing trace with hash 1439903506, now seen corresponding path program 1 times
[2023-11-29 05:47:03,118 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:47:03,118 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583245928]
[2023-11-29 05:47:03,119 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:47:03,119 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:47:04,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:47:10,847 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:47:10,847 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:47:10,847 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583245928]
[2023-11-29 05:47:10,847 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583245928] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:47:10,847 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:47:10,848 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:47:10,849 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113567202]
[2023-11-29 05:47:10,849 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:47:10,853 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:47:10,853 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:47:10,857 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:47:10,857 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:47:10,858 INFO  L87              Difference]: Start difference. First operand 30448 states and 50732 transitions. Second operand  has 4 states, 4 states have (on average 761.75) internal successors, (3047), 4 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:12,246 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:47:12,246 INFO  L93              Difference]: Finished difference Result 84880 states and 141433 transitions.
[2023-11-29 05:47:12,247 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:47:12,248 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 761.75) internal successors, (3047), 4 states have internal predecessors, (3047), 0 states have call successors, (0), 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 3047
[2023-11-29 05:47:12,250 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:47:12,293 INFO  L225             Difference]: With dead ends: 84880
[2023-11-29 05:47:12,293 INFO  L226             Difference]: Without dead ends: 57640
[2023-11-29 05:47:12,308 INFO  L412           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
[2023-11-29 05:47:12,309 INFO  L413           NwaCegarLoop]: 52832 mSDtfsCounter, 45307 mSDsluCounter, 99734 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45307 SdHoareTripleChecker+Valid, 152566 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:47:12,310 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45307 Valid, 152566 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:47:12,379 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57640 states.
[2023-11-29 05:47:12,878 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57640 to 30450.
[2023-11-29 05:47:12,916 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30450 states, 30449 states have (on average 1.6661959341850308) internal successors, (50734), 30449 states have internal predecessors, (50734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:12,973 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30450 states to 30450 states and 50734 transitions.
[2023-11-29 05:47:12,974 INFO  L78                 Accepts]: Start accepts. Automaton has 30450 states and 50734 transitions. Word has length 3047
[2023-11-29 05:47:12,976 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:47:12,976 INFO  L495      AbstractCegarLoop]: Abstraction has 30450 states and 50734 transitions.
[2023-11-29 05:47:12,977 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 761.75) internal successors, (3047), 4 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:12,978 INFO  L276                IsEmpty]: Start isEmpty. Operand 30450 states and 50734 transitions.
[2023-11-29 05:47:13,041 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3049
[2023-11-29 05:47:13,041 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:47:13,042 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:47:13,042 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2023-11-29 05:47:13,043 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:47:13,043 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:47:13,044 INFO  L85        PathProgramCache]: Analyzing trace with hash -979259118, now seen corresponding path program 1 times
[2023-11-29 05:47:13,044 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:47:13,044 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219786242]
[2023-11-29 05:47:13,044 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:47:13,044 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:47:14,954 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:47:22,827 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:47:22,827 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:47:22,827 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219786242]
[2023-11-29 05:47:22,827 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219786242] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:47:22,828 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:47:22,828 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:47:22,828 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524528527]
[2023-11-29 05:47:22,828 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:47:22,831 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:47:22,831 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:47:22,833 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:47:22,833 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:47:22,834 INFO  L87              Difference]: Start difference. First operand 30450 states and 50734 transitions. Second operand  has 5 states, 5 states have (on average 609.6) internal successors, (3048), 5 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:24,236 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:47:24,236 INFO  L93              Difference]: Finished difference Result 84883 states and 141434 transitions.
[2023-11-29 05:47:24,236 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:47:24,237 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 609.6) internal successors, (3048), 5 states have internal predecessors, (3048), 0 states have call successors, (0), 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 3048
[2023-11-29 05:47:24,240 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:47:24,292 INFO  L225             Difference]: With dead ends: 84883
[2023-11-29 05:47:24,292 INFO  L226             Difference]: Without dead ends: 57641
[2023-11-29 05:47:24,315 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:47:24,316 INFO  L413           NwaCegarLoop]: 52827 mSDtfsCounter, 45304 mSDsluCounter, 145032 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45304 SdHoareTripleChecker+Valid, 197859 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:47:24,317 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45304 Valid, 197859 Invalid, 23 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:47:24,393 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57641 states.
[2023-11-29 05:47:24,829 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57641 to 30452.
[2023-11-29 05:47:24,868 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30452 states, 30451 states have (on average 1.6661521789103806) internal successors, (50736), 30451 states have internal predecessors, (50736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:24,923 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30452 states to 30452 states and 50736 transitions.
[2023-11-29 05:47:24,924 INFO  L78                 Accepts]: Start accepts. Automaton has 30452 states and 50736 transitions. Word has length 3048
[2023-11-29 05:47:24,926 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:47:24,926 INFO  L495      AbstractCegarLoop]: Abstraction has 30452 states and 50736 transitions.
[2023-11-29 05:47:24,927 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 609.6) internal successors, (3048), 5 states have internal predecessors, (3048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:24,927 INFO  L276                IsEmpty]: Start isEmpty. Operand 30452 states and 50736 transitions.
[2023-11-29 05:47:24,984 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3050
[2023-11-29 05:47:24,984 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:47:24,985 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:47:24,985 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2023-11-29 05:47:24,985 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:47:24,985 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:47:24,986 INFO  L85        PathProgramCache]: Analyzing trace with hash 1745866540, now seen corresponding path program 1 times
[2023-11-29 05:47:24,986 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:47:24,986 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478912376]
[2023-11-29 05:47:24,986 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:47:24,986 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:47:26,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:47:34,278 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:47:34,278 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:47:34,278 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478912376]
[2023-11-29 05:47:34,278 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478912376] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:47:34,278 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:47:34,279 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:47:34,280 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131544579]
[2023-11-29 05:47:34,280 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:47:34,282 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:47:34,282 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:47:34,285 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:47:34,285 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:47:34,286 INFO  L87              Difference]: Start difference. First operand 30452 states and 50736 transitions. Second operand  has 5 states, 5 states have (on average 609.8) internal successors, (3049), 5 states have internal predecessors, (3049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:35,891 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:47:35,891 INFO  L93              Difference]: Finished difference Result 84886 states and 141435 transitions.
[2023-11-29 05:47:35,892 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:47:35,892 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 609.8) internal successors, (3049), 5 states have internal predecessors, (3049), 0 states have call successors, (0), 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 3049
[2023-11-29 05:47:35,895 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:47:35,934 INFO  L225             Difference]: With dead ends: 84886
[2023-11-29 05:47:35,934 INFO  L226             Difference]: Without dead ends: 57642
[2023-11-29 05:47:35,946 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:47:35,947 INFO  L413           NwaCegarLoop]: 52822 mSDtfsCounter, 45301 mSDsluCounter, 152543 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45301 SdHoareTripleChecker+Valid, 205365 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-11-29 05:47:35,947 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45301 Valid, 205365 Invalid, 27 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-11-29 05:47:36,007 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57642 states.
[2023-11-29 05:47:36,397 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57642 to 30454.
[2023-11-29 05:47:36,432 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30454 states, 30453 states have (on average 1.6661084293829835) internal successors, (50738), 30453 states have internal predecessors, (50738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:36,481 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30454 states to 30454 states and 50738 transitions.
[2023-11-29 05:47:36,482 INFO  L78                 Accepts]: Start accepts. Automaton has 30454 states and 50738 transitions. Word has length 3049
[2023-11-29 05:47:36,484 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:47:36,484 INFO  L495      AbstractCegarLoop]: Abstraction has 30454 states and 50738 transitions.
[2023-11-29 05:47:36,485 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 609.8) internal successors, (3049), 5 states have internal predecessors, (3049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:36,485 INFO  L276                IsEmpty]: Start isEmpty. Operand 30454 states and 50738 transitions.
[2023-11-29 05:47:36,541 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3051
[2023-11-29 05:47:36,541 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:47:36,542 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:47:36,542 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2023-11-29 05:47:36,542 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:47:36,542 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:47:36,543 INFO  L85        PathProgramCache]: Analyzing trace with hash 1493374006, now seen corresponding path program 1 times
[2023-11-29 05:47:36,543 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:47:36,543 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159890571]
[2023-11-29 05:47:36,543 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:47:36,543 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:47:38,392 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:47:45,402 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:47:45,402 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:47:45,402 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159890571]
[2023-11-29 05:47:45,402 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159890571] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:47:45,402 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:47:45,403 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:47:45,403 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411603562]
[2023-11-29 05:47:45,404 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:47:45,406 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:47:45,406 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:47:45,408 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:47:45,408 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:47:45,409 INFO  L87              Difference]: Start difference. First operand 30454 states and 50738 transitions. Second operand  has 4 states, 4 states have (on average 762.5) internal successors, (3050), 4 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:46,590 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:47:46,591 INFO  L93              Difference]: Finished difference Result 84889 states and 141436 transitions.
[2023-11-29 05:47:46,591 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:47:46,592 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 762.5) internal successors, (3050), 4 states have internal predecessors, (3050), 0 states have call successors, (0), 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 3050
[2023-11-29 05:47:46,595 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:47:46,653 INFO  L225             Difference]: With dead ends: 84889
[2023-11-29 05:47:46,654 INFO  L226             Difference]: Without dead ends: 57643
[2023-11-29 05:47:46,681 INFO  L412           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
[2023-11-29 05:47:46,683 INFO  L413           NwaCegarLoop]: 52817 mSDtfsCounter, 45298 mSDsluCounter, 99719 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45298 SdHoareTripleChecker+Valid, 152536 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:47:46,683 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45298 Valid, 152536 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:47:46,860 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57643 states.
[2023-11-29 05:47:47,214 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57643 to 30456.
[2023-11-29 05:47:47,251 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30456 states, 30455 states have (on average 1.6660646856017074) internal successors, (50740), 30455 states have internal predecessors, (50740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:47,307 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30456 states to 30456 states and 50740 transitions.
[2023-11-29 05:47:47,308 INFO  L78                 Accepts]: Start accepts. Automaton has 30456 states and 50740 transitions. Word has length 3050
[2023-11-29 05:47:47,310 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:47:47,310 INFO  L495      AbstractCegarLoop]: Abstraction has 30456 states and 50740 transitions.
[2023-11-29 05:47:47,311 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 762.5) internal successors, (3050), 4 states have internal predecessors, (3050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:47,311 INFO  L276                IsEmpty]: Start isEmpty. Operand 30456 states and 50740 transitions.
[2023-11-29 05:47:47,373 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3052
[2023-11-29 05:47:47,373 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:47:47,373 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:47:47,374 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2023-11-29 05:47:47,374 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:47:47,374 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:47:47,375 INFO  L85        PathProgramCache]: Analyzing trace with hash 840121220, now seen corresponding path program 1 times
[2023-11-29 05:47:47,375 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:47:47,375 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73623982]
[2023-11-29 05:47:47,375 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:47:47,375 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:47:49,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:47:56,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:47:56,420 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:47:56,420 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73623982]
[2023-11-29 05:47:56,420 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73623982] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:47:56,420 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:47:56,421 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:47:56,421 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218886042]
[2023-11-29 05:47:56,421 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:47:56,423 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:47:56,423 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:47:56,426 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:47:56,426 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:47:56,427 INFO  L87              Difference]: Start difference. First operand 30456 states and 50740 transitions. Second operand  has 4 states, 4 states have (on average 762.75) internal successors, (3051), 4 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:57,622 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:47:57,623 INFO  L93              Difference]: Finished difference Result 84892 states and 141437 transitions.
[2023-11-29 05:47:57,623 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:47:57,624 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 762.75) internal successors, (3051), 4 states have internal predecessors, (3051), 0 states have call successors, (0), 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 3051
[2023-11-29 05:47:57,626 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:47:57,678 INFO  L225             Difference]: With dead ends: 84892
[2023-11-29 05:47:57,679 INFO  L226             Difference]: Without dead ends: 57644
[2023-11-29 05:47:57,704 INFO  L412           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
[2023-11-29 05:47:57,704 INFO  L413           NwaCegarLoop]: 52812 mSDtfsCounter, 45295 mSDsluCounter, 99714 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45295 SdHoareTripleChecker+Valid, 152526 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:47:57,705 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45295 Valid, 152526 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:47:57,784 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57644 states.
[2023-11-29 05:47:58,229 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57644 to 30458.
[2023-11-29 05:47:58,268 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30458 states, 30457 states have (on average 1.6660209475654202) internal successors, (50742), 30457 states have internal predecessors, (50742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:58,325 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30458 states to 30458 states and 50742 transitions.
[2023-11-29 05:47:58,325 INFO  L78                 Accepts]: Start accepts. Automaton has 30458 states and 50742 transitions. Word has length 3051
[2023-11-29 05:47:58,327 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:47:58,327 INFO  L495      AbstractCegarLoop]: Abstraction has 30458 states and 50742 transitions.
[2023-11-29 05:47:58,328 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 762.75) internal successors, (3051), 4 states have internal predecessors, (3051), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:47:58,328 INFO  L276                IsEmpty]: Start isEmpty. Operand 30458 states and 50742 transitions.
[2023-11-29 05:47:58,383 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3053
[2023-11-29 05:47:58,384 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:47:58,384 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:47:58,384 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2023-11-29 05:47:58,385 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:47:58,385 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:47:58,385 INFO  L85        PathProgramCache]: Analyzing trace with hash 1979521820, now seen corresponding path program 1 times
[2023-11-29 05:47:58,386 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:47:58,386 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586724969]
[2023-11-29 05:47:58,386 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:47:58,386 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:48:00,265 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:48:07,801 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:48:07,801 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:48:07,801 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586724969]
[2023-11-29 05:48:07,801 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586724969] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:48:07,801 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:48:07,802 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:48:07,802 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431968848]
[2023-11-29 05:48:07,802 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:48:07,804 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:48:07,804 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:48:07,806 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:48:07,807 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:48:07,807 INFO  L87              Difference]: Start difference. First operand 30458 states and 50742 transitions. Second operand  has 5 states, 5 states have (on average 610.4) internal successors, (3052), 5 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:48:09,210 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:48:09,210 INFO  L93              Difference]: Finished difference Result 84895 states and 141438 transitions.
[2023-11-29 05:48:09,211 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:48:09,212 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 610.4) internal successors, (3052), 5 states have internal predecessors, (3052), 0 states have call successors, (0), 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 3052
[2023-11-29 05:48:09,214 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:48:09,261 INFO  L225             Difference]: With dead ends: 84895
[2023-11-29 05:48:09,261 INFO  L226             Difference]: Without dead ends: 57645
[2023-11-29 05:48:09,283 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:48:09,283 INFO  L413           NwaCegarLoop]: 52807 mSDtfsCounter, 45292 mSDsluCounter, 145000 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45292 SdHoareTripleChecker+Valid, 197807 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:48:09,284 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45292 Valid, 197807 Invalid, 23 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:48:09,347 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57645 states.
[2023-11-29 05:48:09,762 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57645 to 30460.
[2023-11-29 05:48:09,801 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30460 states, 30459 states have (on average 1.66597721527299) internal successors, (50744), 30459 states have internal predecessors, (50744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:48:09,856 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30460 states to 30460 states and 50744 transitions.
[2023-11-29 05:48:09,857 INFO  L78                 Accepts]: Start accepts. Automaton has 30460 states and 50744 transitions. Word has length 3052
[2023-11-29 05:48:09,859 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:48:09,859 INFO  L495      AbstractCegarLoop]: Abstraction has 30460 states and 50744 transitions.
[2023-11-29 05:48:09,860 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 610.4) internal successors, (3052), 5 states have internal predecessors, (3052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:48:09,860 INFO  L276                IsEmpty]: Start isEmpty. Operand 30460 states and 50744 transitions.
[2023-11-29 05:48:09,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3054
[2023-11-29 05:48:09,919 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:48:09,920 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:48:09,920 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2023-11-29 05:48:09,920 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:48:09,920 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:48:09,921 INFO  L85        PathProgramCache]: Analyzing trace with hash -512084066, now seen corresponding path program 1 times
[2023-11-29 05:48:09,921 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:48:09,921 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899290616]
[2023-11-29 05:48:09,922 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:48:09,922 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:48:12,721 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:48:19,700 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:48:19,700 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:48:19,700 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899290616]
[2023-11-29 05:48:19,700 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899290616] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:48:19,701 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:48:19,701 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:48:19,701 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628943499]
[2023-11-29 05:48:19,701 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:48:19,703 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-29 05:48:19,703 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:48:19,705 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-29 05:48:19,706 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:48:19,706 INFO  L87              Difference]: Start difference. First operand 30460 states and 50744 transitions. Second operand  has 6 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 5 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:48:59,605 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:48:59,605 INFO  L93              Difference]: Finished difference Result 83938 states and 139629 transitions.
[2023-11-29 05:48:59,606 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 05:48:59,607 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 5 states have internal predecessors, (3053), 0 states have call successors, (0), 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 3053
[2023-11-29 05:48:59,608 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:48:59,651 INFO  L225             Difference]: With dead ends: 83938
[2023-11-29 05:48:59,652 INFO  L226             Difference]: Without dead ends: 56686
[2023-11-29 05:48:59,664 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-11-29 05:48:59,665 INFO  L413           NwaCegarLoop]: 38224 mSDtfsCounter, 136102 mSDsluCounter, 118761 mSDsCounter, 0 mSdLazyCounter, 34412 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136102 SdHoareTripleChecker+Valid, 156985 SdHoareTripleChecker+Invalid, 35036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.8s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 34412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time
[2023-11-29 05:48:59,665 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [136102 Valid, 156985 Invalid, 35036 Unknown, 0 Unchecked, 0.8s Time], IncrementalHoareTripleChecker [624 Valid, 34412 Invalid, 0 Unknown, 0 Unchecked, 37.6s Time]
[2023-11-29 05:48:59,722 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56686 states.
[2023-11-29 05:49:00,080 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56686 to 30465.
[2023-11-29 05:49:00,112 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30465 states, 30464 states have (on average 1.6659335609243697) internal successors, (50751), 30464 states have internal predecessors, (50751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:49:00,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30465 states to 30465 states and 50751 transitions.
[2023-11-29 05:49:00,157 INFO  L78                 Accepts]: Start accepts. Automaton has 30465 states and 50751 transitions. Word has length 3053
[2023-11-29 05:49:00,159 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:49:00,159 INFO  L495      AbstractCegarLoop]: Abstraction has 30465 states and 50751 transitions.
[2023-11-29 05:49:00,159 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 508.8333333333333) internal successors, (3053), 5 states have internal predecessors, (3053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:49:00,160 INFO  L276                IsEmpty]: Start isEmpty. Operand 30465 states and 50751 transitions.
[2023-11-29 05:49:00,211 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3055
[2023-11-29 05:49:00,211 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:49:00,212 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:49:00,212 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2023-11-29 05:49:00,212 INFO  L420      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:49:00,212 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:49:00,213 INFO  L85        PathProgramCache]: Analyzing trace with hash -84612428, now seen corresponding path program 1 times
[2023-11-29 05:49:00,213 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:49:00,213 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087380325]
[2023-11-29 05:49:00,213 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:49:00,213 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:49:02,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:49:10,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:49:10,914 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:49:10,914 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087380325]
[2023-11-29 05:49:10,914 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087380325] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:49:10,914 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:49:10,915 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:49:10,915 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034997421]
[2023-11-29 05:49:10,915 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:49:10,917 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:49:10,917 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:49:10,919 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:49:10,919 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:49:10,920 INFO  L87              Difference]: Start difference. First operand 30465 states and 50751 transitions. Second operand  has 5 states, 5 states have (on average 610.8) internal successors, (3054), 4 states have internal predecessors, (3054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:49:45,528 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:49:45,528 INFO  L93              Difference]: Finished difference Result 82690 states and 137757 transitions.
[2023-11-29 05:49:45,528 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:49:45,529 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 610.8) internal successors, (3054), 4 states have internal predecessors, (3054), 0 states have call successors, (0), 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 3054
[2023-11-29 05:49:45,531 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:49:45,573 INFO  L225             Difference]: With dead ends: 82690
[2023-11-29 05:49:45,573 INFO  L226             Difference]: Without dead ends: 55438
[2023-11-29 05:49:45,589 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-11-29 05:49:45,589 INFO  L413           NwaCegarLoop]: 35618 mSDtfsCounter, 135475 mSDsluCounter, 71229 mSDsCounter, 0 mSdLazyCounter, 33894 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135475 SdHoareTripleChecker+Valid, 106847 SdHoareTripleChecker+Invalid, 33894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.8s IncrementalHoareTripleChecker+Time
[2023-11-29 05:49:45,589 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [135475 Valid, 106847 Invalid, 33894 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [0 Valid, 33894 Invalid, 0 Unknown, 0 Unchecked, 32.8s Time]
[2023-11-29 05:49:45,651 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55438 states.
[2023-11-29 05:49:46,002 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55438 to 30466.
[2023-11-29 05:49:46,032 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30466 states, 30465 states have (on average 1.665911701953061) internal successors, (50752), 30465 states have internal predecessors, (50752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:49:46,075 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30466 states to 30466 states and 50752 transitions.
[2023-11-29 05:49:46,075 INFO  L78                 Accepts]: Start accepts. Automaton has 30466 states and 50752 transitions. Word has length 3054
[2023-11-29 05:49:46,077 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:49:46,077 INFO  L495      AbstractCegarLoop]: Abstraction has 30466 states and 50752 transitions.
[2023-11-29 05:49:46,077 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 610.8) internal successors, (3054), 4 states have internal predecessors, (3054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:49:46,077 INFO  L276                IsEmpty]: Start isEmpty. Operand 30466 states and 50752 transitions.
[2023-11-29 05:49:46,129 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3055
[2023-11-29 05:49:46,129 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:49:46,130 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:49:46,130 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2023-11-29 05:49:46,130 INFO  L420      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:49:46,130 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:49:46,131 INFO  L85        PathProgramCache]: Analyzing trace with hash -1611459214, now seen corresponding path program 1 times
[2023-11-29 05:49:46,131 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:49:46,131 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871356196]
[2023-11-29 05:49:46,131 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:49:46,131 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:49:47,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:49:54,844 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:49:54,844 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:49:54,844 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871356196]
[2023-11-29 05:49:54,844 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871356196] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:49:54,845 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:49:54,846 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:49:54,846 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728772741]
[2023-11-29 05:49:54,846 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:49:54,848 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:49:54,848 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:49:54,850 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:49:54,850 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:49:54,851 INFO  L87              Difference]: Start difference. First operand 30466 states and 50752 transitions. Second operand  has 5 states, 5 states have (on average 610.8) internal successors, (3054), 5 states have internal predecessors, (3054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:49:56,390 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:49:56,390 INFO  L93              Difference]: Finished difference Result 84904 states and 141447 transitions.
[2023-11-29 05:49:56,391 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:49:56,391 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 610.8) internal successors, (3054), 5 states have internal predecessors, (3054), 0 states have call successors, (0), 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 3054
[2023-11-29 05:49:56,394 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:49:56,439 INFO  L225             Difference]: With dead ends: 84904
[2023-11-29 05:49:56,439 INFO  L226             Difference]: Without dead ends: 57652
[2023-11-29 05:49:56,459 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:49:56,460 INFO  L413           NwaCegarLoop]: 52800 mSDtfsCounter, 45289 mSDsluCounter, 152499 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45289 SdHoareTripleChecker+Valid, 205299 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-29 05:49:56,460 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45289 Valid, 205299 Invalid, 27 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-29 05:49:56,519 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57652 states.
[2023-11-29 05:49:56,945 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57652 to 30468.
[2023-11-29 05:49:56,974 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30468 states, 30467 states have (on average 1.6658679883152263) internal successors, (50754), 30467 states have internal predecessors, (50754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:49:57,014 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30468 states to 30468 states and 50754 transitions.
[2023-11-29 05:49:57,014 INFO  L78                 Accepts]: Start accepts. Automaton has 30468 states and 50754 transitions. Word has length 3054
[2023-11-29 05:49:57,016 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:49:57,016 INFO  L495      AbstractCegarLoop]: Abstraction has 30468 states and 50754 transitions.
[2023-11-29 05:49:57,017 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 610.8) internal successors, (3054), 5 states have internal predecessors, (3054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:49:57,017 INFO  L276                IsEmpty]: Start isEmpty. Operand 30468 states and 50754 transitions.
[2023-11-29 05:49:57,068 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3056
[2023-11-29 05:49:57,069 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:49:57,069 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:49:57,070 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2023-11-29 05:49:57,070 INFO  L420      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:49:57,070 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:49:57,070 INFO  L85        PathProgramCache]: Analyzing trace with hash -2044956180, now seen corresponding path program 1 times
[2023-11-29 05:49:57,071 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:49:57,071 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638677503]
[2023-11-29 05:49:57,071 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:49:57,071 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:49:58,496 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:50:04,820 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:50:04,821 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:50:04,821 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638677503]
[2023-11-29 05:50:04,821 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638677503] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:50:04,821 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:50:04,822 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:50:04,822 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111357178]
[2023-11-29 05:50:04,822 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:50:04,824 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-29 05:50:04,824 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:50:04,825 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-29 05:50:04,826 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-29 05:50:04,826 INFO  L87              Difference]: Start difference. First operand 30468 states and 50754 transitions. Second operand  has 4 states, 4 states have (on average 763.75) internal successors, (3055), 4 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:50:05,787 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:50:05,787 INFO  L93              Difference]: Finished difference Result 84907 states and 141448 transitions.
[2023-11-29 05:50:05,787 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-29 05:50:05,788 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 763.75) internal successors, (3055), 4 states have internal predecessors, (3055), 0 states have call successors, (0), 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 3055
[2023-11-29 05:50:05,790 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:50:05,837 INFO  L225             Difference]: With dead ends: 84907
[2023-11-29 05:50:05,837 INFO  L226             Difference]: Without dead ends: 57653
[2023-11-29 05:50:05,855 INFO  L412           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
[2023-11-29 05:50:05,856 INFO  L413           NwaCegarLoop]: 52795 mSDtfsCounter, 45286 mSDsluCounter, 99697 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45286 SdHoareTripleChecker+Valid, 152492 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-29 05:50:05,856 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [45286 Valid, 152492 Invalid, 19 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-29 05:50:05,914 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 57653 states.
[2023-11-29 05:50:06,266 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 57653 to 30470.
[2023-11-29 05:50:06,298 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30470 states, 30469 states have (on average 1.6658242804161607) internal successors, (50756), 30469 states have internal predecessors, (50756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:50:06,341 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30470 states to 30470 states and 50756 transitions.
[2023-11-29 05:50:06,341 INFO  L78                 Accepts]: Start accepts. Automaton has 30470 states and 50756 transitions. Word has length 3055
[2023-11-29 05:50:06,343 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:50:06,343 INFO  L495      AbstractCegarLoop]: Abstraction has 30470 states and 50756 transitions.
[2023-11-29 05:50:06,344 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 763.75) internal successors, (3055), 4 states have internal predecessors, (3055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:50:06,344 INFO  L276                IsEmpty]: Start isEmpty. Operand 30470 states and 50756 transitions.
[2023-11-29 05:50:06,445 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3057
[2023-11-29 05:50:06,445 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:50:06,446 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 05:50:06,446 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2023-11-29 05:50:06,446 INFO  L420      AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:50:06,446 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:50:06,447 INFO  L85        PathProgramCache]: Analyzing trace with hash -1138127926, now seen corresponding path program 1 times
[2023-11-29 05:50:06,447 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:50:06,447 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635956203]
[2023-11-29 05:50:06,447 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:50:06,447 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:50:08,860 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:50:15,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:50:15,371 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:50:15,371 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635956203]
[2023-11-29 05:50:15,371 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635956203] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:50:15,371 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:50:15,372 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 05:50:15,372 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113297701]
[2023-11-29 05:50:15,372 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:50:15,374 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-29 05:50:15,374 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:50:15,376 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-29 05:50:15,377 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2023-11-29 05:50:15,377 INFO  L87              Difference]: Start difference. First operand 30470 states and 50756 transitions. Second operand  has 6 states, 6 states have (on average 509.3333333333333) internal successors, (3056), 5 states have internal predecessors, (3056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:50:39,385 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 05:50:39,385 INFO  L93              Difference]: Finished difference Result 83950 states and 139639 transitions.
[2023-11-29 05:50:39,385 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-29 05:50:39,386 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 509.3333333333333) internal successors, (3056), 5 states have internal predecessors, (3056), 0 states have call successors, (0), 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 3056
[2023-11-29 05:50:39,388 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 05:50:39,429 INFO  L225             Difference]: With dead ends: 83950
[2023-11-29 05:50:39,429 INFO  L226             Difference]: Without dead ends: 56694
[2023-11-29 05:50:39,444 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2023-11-29 05:50:39,445 INFO  L413           NwaCegarLoop]: 38226 mSDtfsCounter, 179530 mSDsluCounter, 84415 mSDsCounter, 0 mSdLazyCounter, 23737 mSolverCounterSat, 624 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179530 SdHoareTripleChecker+Valid, 122641 SdHoareTripleChecker+Invalid, 24361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 23737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time
[2023-11-29 05:50:39,445 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [179530 Valid, 122641 Invalid, 24361 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [624 Valid, 23737 Invalid, 0 Unknown, 0 Unchecked, 22.3s Time]
[2023-11-29 05:50:39,504 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 56694 states.
[2023-11-29 05:50:39,855 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 56694 to 30475.
[2023-11-29 05:50:39,885 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30475 states, 30474 states have (on average 1.6657806654853318) internal successors, (50763), 30474 states have internal predecessors, (50763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:50:39,926 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30475 states to 30475 states and 50763 transitions.
[2023-11-29 05:50:39,926 INFO  L78                 Accepts]: Start accepts. Automaton has 30475 states and 50763 transitions. Word has length 3056
[2023-11-29 05:50:39,927 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 05:50:39,927 INFO  L495      AbstractCegarLoop]: Abstraction has 30475 states and 50763 transitions.
[2023-11-29 05:50:39,928 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 509.3333333333333) internal successors, (3056), 5 states have internal predecessors, (3056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-29 05:50:39,928 INFO  L276                IsEmpty]: Start isEmpty. Operand 30475 states and 50763 transitions.
[2023-11-29 05:50:40,027 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3058
[2023-11-29 05:50:40,027 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 05:50:40,028 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-11-29 05:50:40,028 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2023-11-29 05:50:40,028 INFO  L420      AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 05:50:40,029 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 05:50:40,029 INFO  L85        PathProgramCache]: Analyzing trace with hash 1449501548, now seen corresponding path program 1 times
[2023-11-29 05:50:40,029 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 05:50:40,029 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302518345]
[2023-11-29 05:50:40,030 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 05:50:40,030 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 05:50:42,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 05:50:51,588 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 05:50:51,588 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 05:50:51,589 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302518345]
[2023-11-29 05:50:51,589 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302518345] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 05:50:51,589 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 05:50:51,589 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-29 05:50:51,589 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763998676]
[2023-11-29 05:50:51,589 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 05:50:51,591 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-29 05:50:51,591 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 05:50:51,593 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-29 05:50:51,593 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-29 05:50:51,594 INFO  L87              Difference]: Start difference. First operand 30475 states and 50763 transitions. Second operand  has 5 states, 5 states have (on average 611.4) internal successors, (3057), 4 states have internal predecessors, (3057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)