./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem101_label07.c --full-output --architecture 32bit


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


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_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/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_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem101_label07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/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 32bit --witnessprinter.graph.data.programhash 34b274a9d3f9e565038ffe944b33383cd0c42b036a481bebe099c4917380c142
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-29 00:12:08,152 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-29 00:12:08,232 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-29 00:12:08,236 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-29 00:12:08,237 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-29 00:12:08,262 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-29 00:12:08,263 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-29 00:12:08,263 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-29 00:12:08,264 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-29 00:12:08,265 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-29 00:12:08,265 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-29 00:12:08,266 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-29 00:12:08,266 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-29 00:12:08,267 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-29 00:12:08,267 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-29 00:12:08,268 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-29 00:12:08,268 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-29 00:12:08,269 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-29 00:12:08,269 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-29 00:12:08,270 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-29 00:12:08,271 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-29 00:12:08,272 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-29 00:12:08,272 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-29 00:12:08,273 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-29 00:12:08,273 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-29 00:12:08,273 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-29 00:12:08,274 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-29 00:12:08,274 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-29 00:12:08,275 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-29 00:12:08,275 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-29 00:12:08,275 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-29 00:12:08,276 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-29 00:12:08,276 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-29 00:12:08,276 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-29 00:12:08,277 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-29 00:12:08,277 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-29 00:12:08,277 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-29 00:12:08,277 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-29 00:12:08,277 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-29 00:12:08,278 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-29 00:12:08,278 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-29 00:12:08,278 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-29 00:12:08,278 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_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/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_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/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 -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34b274a9d3f9e565038ffe944b33383cd0c42b036a481bebe099c4917380c142
[2023-11-29 00:12:08,509 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-29 00:12:08,533 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-29 00:12:08,536 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-29 00:12:08,537 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-29 00:12:08,537 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-29 00:12:08,539 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/eca-programs/Problem101_label07.c
[2023-11-29 00:12:11,305 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-29 00:12:13,094 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-29 00:12:13,095 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/sv-benchmarks/c/eca-programs/Problem101_label07.c
[2023-11-29 00:12:13,239 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/bin/uautomizer-verify-BQ2R08f2Ya/data/5af1998f3/839b45e3768f4a28b06907a492b029ca/FLAGb6b4adffb
[2023-11-29 00:12:13,253 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/bin/uautomizer-verify-BQ2R08f2Ya/data/5af1998f3/839b45e3768f4a28b06907a492b029ca
[2023-11-29 00:12:13,255 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-29 00:12:13,257 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-29 00:12:13,258 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-29 00:12:13,258 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-29 00:12:13,263 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-29 00:12:13,264 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:12:13" (1/1) ...
[2023-11-29 00:12:13,265 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@beb2dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:13, skipping insertion in model container
[2023-11-29 00:12:13,265 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:12:13" (1/1) ...
[2023-11-29 00:12:14,057 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-29 00:12:24,908 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_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/sv-benchmarks/c/eca-programs/Problem101_label07.c[2769526,2769539]
[2023-11-29 00:12:24,978 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-29 00:12:24,989 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-29 00:12:31,422 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_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/sv-benchmarks/c/eca-programs/Problem101_label07.c[2769526,2769539]
[2023-11-29 00:12:31,433 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-29 00:12:32,255 INFO  L206         MainTranslator]: Completed translation
[2023-11-29 00:12:32,255 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32 WrapperNode
[2023-11-29 00:12:32,255 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-29 00:12:32,256 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-29 00:12:32,256 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-29 00:12:32,256 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-29 00:12:32,262 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:32,784 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:34,515 INFO  L138                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83781
[2023-11-29 00:12:34,515 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-29 00:12:34,516 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-29 00:12:34,516 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-29 00:12:34,516 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-29 00:12:34,526 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:34,526 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:34,798 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:35,112 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 00:12:35,113 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:35,113 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:35,798 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:35,950 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:36,104 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:36,220 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:36,667 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-29 00:12:36,668 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-29 00:12:36,669 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-29 00:12:36,669 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-29 00:12:36,670 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (1/1) ...
[2023-11-29 00:12:36,677 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-29 00:12:36,687 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/bin/uautomizer-verify-BQ2R08f2Ya/z3
[2023-11-29 00:12:36,698 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-29 00:12:36,701 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed8b3ad9-59a4-47a0-ae5c-6c7fd5c9fb4b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-29 00:12:36,728 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-29 00:12:36,728 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-29 00:12:36,728 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-29 00:12:36,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-29 00:12:36,855 INFO  L241             CfgBuilder]: Building ICFG
[2023-11-29 00:12:36,857 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-29 00:13:17,071 INFO  L282             CfgBuilder]: Performing block encoding
[2023-11-29 00:13:17,210 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-29 00:13:17,210 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-29 00:13:17,215 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:13:17 BoogieIcfgContainer
[2023-11-29 00:13:17,215 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-29 00:13:17,217 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-29 00:13:17,218 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-29 00:13:17,220 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-29 00:13:17,221 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:12:13" (1/3) ...
[2023-11-29 00:13:17,221 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58092ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:13:17, skipping insertion in model container
[2023-11-29 00:13:17,222 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:12:32" (2/3) ...
[2023-11-29 00:13:17,222 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58092ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:13:17, skipping insertion in model container
[2023-11-29 00:13:17,222 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:13:17" (3/3) ...
[2023-11-29 00:13:17,223 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem101_label07.c
[2023-11-29 00:13:17,238 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-29 00:13:17,238 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-29 00:13:17,405 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-29 00:13:17,412 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;@61984e02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-29 00:13:17,413 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-29 00:13:17,450 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 0 states have call successors, (0), 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 00:13:18,159 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10104
[2023-11-29 00:13:18,159 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:13:18,164 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 00:13:18,167 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:13:18,174 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:13:18,180 INFO  L85        PathProgramCache]: Analyzing trace with hash -87787998, now seen corresponding path program 1 times
[2023-11-29 00:13:18,186 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:13:18,187 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971830381]
[2023-11-29 00:13:18,190 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:13:18,190 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:13:21,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:13:45,893 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 00:13:45,893 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:13:45,894 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971830381]
[2023-11-29 00:13:45,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971830381] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:13:45,894 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:13:45,896 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:13:45,897 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499056112]
[2023-11-29 00:13:45,898 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:13:45,911 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-29 00:13:45,911 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:13:45,944 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-29 00:13:45,945 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-29 00:13:45,968 INFO  L87              Difference]: Start difference. First operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 0 states have call successors, (0), 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 2 states, 2 states have (on average 5051.5) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 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 00:13:46,233 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:13:46,233 INFO  L93              Difference]: Finished difference Result 20389 states and 40675 transitions.
[2023-11-29 00:13:46,234 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-29 00:13:46,241 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 5051.5) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 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 10103
[2023-11-29 00:13:46,343 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:13:46,416 INFO  L225             Difference]: With dead ends: 20389
[2023-11-29 00:13:46,417 INFO  L226             Difference]: Without dead ends: 10193
[2023-11-29 00:13:46,438 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-11-29 00:13:46,441 INFO  L413           NwaCegarLoop]: 20273 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20273 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-29 00:13:46,443 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20273 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-29 00:13:46,481 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10193 states.
[2023-11-29 00:13:46,678 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10193 to 10193.
[2023-11-29 00:13:46,700 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10193 states, 10192 states have (on average 1.9891091051805339) internal successors, (20273), 10192 states have internal predecessors, (20273), 0 states have call successors, (0), 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 00:13:46,730 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10193 states to 10193 states and 20273 transitions.
[2023-11-29 00:13:46,731 INFO  L78                 Accepts]: Start accepts. Automaton has 10193 states and 20273 transitions. Word has length 10103
[2023-11-29 00:13:46,745 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:13:46,745 INFO  L495      AbstractCegarLoop]: Abstraction has 10193 states and 20273 transitions.
[2023-11-29 00:13:46,748 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 5051.5) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 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 00:13:46,748 INFO  L276                IsEmpty]: Start isEmpty. Operand 10193 states and 20273 transitions.
[2023-11-29 00:13:47,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10104
[2023-11-29 00:13:47,324 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:13:47,329 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]
[2023-11-29 00:13:47,329 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-29 00:13:47,330 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:13:47,330 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:13:47,336 INFO  L85        PathProgramCache]: Analyzing trace with hash -1436437766, now seen corresponding path program 1 times
[2023-11-29 00:13:47,336 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:13:47,337 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628592102]
[2023-11-29 00:13:47,341 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:13:47,341 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:13:49,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:14:22,020 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 00:14:22,020 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:14:22,020 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628592102]
[2023-11-29 00:14:22,021 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628592102] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:14:22,021 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:14:22,023 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:14:22,023 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887144095]
[2023-11-29 00:14:22,023 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:14:22,037 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:14:22,038 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:14:22,045 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:14:22,045 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:14:22,049 INFO  L87              Difference]: Start difference. First operand 10193 states and 20273 transitions. Second operand  has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 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 00:14:58,580 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:14:58,580 INFO  L93              Difference]: Finished difference Result 30575 states and 60816 transitions.
[2023-11-29 00:14:58,581 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:14:58,583 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 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 10103
[2023-11-29 00:14:58,595 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:14:58,689 INFO  L225             Difference]: With dead ends: 30575
[2023-11-29 00:14:58,689 INFO  L226             Difference]: Without dead ends: 20383
[2023-11-29 00:14:58,702 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:14:58,703 INFO  L413           NwaCegarLoop]: 5063 mSDtfsCounter, 1966 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 33508 mSolverCounterSat, 7005 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1966 SdHoareTripleChecker+Valid, 5113 SdHoareTripleChecker+Invalid, 40513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7005 IncrementalHoareTripleChecker+Valid, 33508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time
[2023-11-29 00:14:58,704 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1966 Valid, 5113 Invalid, 40513 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7005 Valid, 33508 Invalid, 0 Unknown, 0 Unchecked, 35.8s Time]
[2023-11-29 00:14:58,736 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20383 states.
[2023-11-29 00:14:59,103 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20383 to 20383.
[2023-11-29 00:14:59,128 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20383 states, 20382 states have (on average 1.7445294868020802) internal successors, (35557), 20382 states have internal predecessors, (35557), 0 states have call successors, (0), 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 00:14:59,162 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20383 states to 20383 states and 35557 transitions.
[2023-11-29 00:14:59,162 INFO  L78                 Accepts]: Start accepts. Automaton has 20383 states and 35557 transitions. Word has length 10103
[2023-11-29 00:14:59,179 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:14:59,179 INFO  L495      AbstractCegarLoop]: Abstraction has 20383 states and 35557 transitions.
[2023-11-29 00:14:59,181 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 0 states have call successors, (0), 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 00:14:59,182 INFO  L276                IsEmpty]: Start isEmpty. Operand 20383 states and 35557 transitions.
[2023-11-29 00:14:59,725 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10108
[2023-11-29 00:14:59,725 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:14:59,730 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 00:14:59,730 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-29 00:14:59,730 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:14:59,731 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:14:59,734 INFO  L85        PathProgramCache]: Analyzing trace with hash 1964746018, now seen corresponding path program 1 times
[2023-11-29 00:14:59,735 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:14:59,735 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444062811]
[2023-11-29 00:14:59,736 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:14:59,736 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:15:01,086 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:15:24,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:15:24,025 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:15:24,025 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444062811]
[2023-11-29 00:15:24,025 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444062811] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:15:24,026 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:15:24,028 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:15:24,028 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759151286]
[2023-11-29 00:15:24,028 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:15:24,035 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:15:24,035 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:15:24,042 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:15:24,043 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:15:24,046 INFO  L87              Difference]: Start difference. First operand 20383 states and 35557 transitions. Second operand  has 3 states, 3 states have (on average 3369.0) internal successors, (10107), 2 states have internal predecessors, (10107), 0 states have call successors, (0), 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 00:16:02,884 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:16:02,884 INFO  L93              Difference]: Finished difference Result 61145 states and 106668 transitions.
[2023-11-29 00:16:02,884 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:16:02,886 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3369.0) internal successors, (10107), 2 states have internal predecessors, (10107), 0 states have call successors, (0), 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 10107
[2023-11-29 00:16:02,886 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:16:02,941 INFO  L225             Difference]: With dead ends: 61145
[2023-11-29 00:16:02,941 INFO  L226             Difference]: Without dead ends: 40763
[2023-11-29 00:16:02,956 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:16:02,957 INFO  L413           NwaCegarLoop]: 4833 mSDtfsCounter, 13865 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28701 mSolverCounterSat, 11758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13865 SdHoareTripleChecker+Valid, 4882 SdHoareTripleChecker+Invalid, 40459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11758 IncrementalHoareTripleChecker+Valid, 28701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.1s IncrementalHoareTripleChecker+Time
[2023-11-29 00:16:02,958 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13865 Valid, 4882 Invalid, 40459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11758 Valid, 28701 Invalid, 0 Unknown, 0 Unchecked, 38.1s Time]
[2023-11-29 00:16:02,992 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40763 states.
[2023-11-29 00:16:03,364 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40763 to 40763.
[2023-11-29 00:16:03,397 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40763 states, 40762 states have (on average 1.5682253078847948) internal successors, (63924), 40762 states have internal predecessors, (63924), 0 states have call successors, (0), 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 00:16:03,442 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40763 states to 40763 states and 63924 transitions.
[2023-11-29 00:16:03,442 INFO  L78                 Accepts]: Start accepts. Automaton has 40763 states and 63924 transitions. Word has length 10107
[2023-11-29 00:16:03,444 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:16:03,445 INFO  L495      AbstractCegarLoop]: Abstraction has 40763 states and 63924 transitions.
[2023-11-29 00:16:03,447 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3369.0) internal successors, (10107), 2 states have internal predecessors, (10107), 0 states have call successors, (0), 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 00:16:03,447 INFO  L276                IsEmpty]: Start isEmpty. Operand 40763 states and 63924 transitions.
[2023-11-29 00:16:04,044 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10109
[2023-11-29 00:16:04,044 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:16:04,050 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-11-29 00:16:04,050 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-29 00:16:04,050 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:16:04,051 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:16:04,054 INFO  L85        PathProgramCache]: Analyzing trace with hash -1894677358, now seen corresponding path program 1 times
[2023-11-29 00:16:04,054 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:16:04,054 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047267712]
[2023-11-29 00:16:04,055 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:16:04,056 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:16:05,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:16:25,743 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:16:25,743 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:16:25,743 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047267712]
[2023-11-29 00:16:25,743 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047267712] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:16:25,744 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:16:25,745 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:16:25,746 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226387893]
[2023-11-29 00:16:25,746 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:16:25,752 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:16:25,752 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:16:25,759 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:16:25,759 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:16:25,761 INFO  L87              Difference]: Start difference. First operand 40763 states and 63924 transitions. Second operand  has 3 states, 3 states have (on average 3369.3333333333335) internal successors, (10108), 2 states have internal predecessors, (10108), 0 states have call successors, (0), 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 00:17:03,100 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:17:03,100 INFO  L93              Difference]: Finished difference Result 122285 states and 191769 transitions.
[2023-11-29 00:17:03,101 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:17:03,102 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3369.3333333333335) internal successors, (10108), 2 states have internal predecessors, (10108), 0 states have call successors, (0), 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 10108
[2023-11-29 00:17:03,102 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:17:03,256 INFO  L225             Difference]: With dead ends: 122285
[2023-11-29 00:17:03,256 INFO  L226             Difference]: Without dead ends: 81523
[2023-11-29 00:17:03,278 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:17:03,279 INFO  L413           NwaCegarLoop]: 6212 mSDtfsCounter, 12828 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29361 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12828 SdHoareTripleChecker+Valid, 6261 SdHoareTripleChecker+Invalid, 41038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 29361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time
[2023-11-29 00:17:03,280 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12828 Valid, 6261 Invalid, 41038 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 29361 Invalid, 0 Unknown, 0 Unchecked, 36.5s Time]
[2023-11-29 00:17:03,348 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81523 states.
[2023-11-29 00:17:03,972 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81523 to 81523.
[2023-11-29 00:17:04,031 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81523 states, 81522 states have (on average 1.4373788670542922) internal successors, (117178), 81522 states have internal predecessors, (117178), 0 states have call successors, (0), 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 00:17:04,112 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81523 states to 81523 states and 117178 transitions.
[2023-11-29 00:17:04,112 INFO  L78                 Accepts]: Start accepts. Automaton has 81523 states and 117178 transitions. Word has length 10108
[2023-11-29 00:17:04,114 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:17:04,114 INFO  L495      AbstractCegarLoop]: Abstraction has 81523 states and 117178 transitions.
[2023-11-29 00:17:04,116 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3369.3333333333335) internal successors, (10108), 2 states have internal predecessors, (10108), 0 states have call successors, (0), 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 00:17:04,116 INFO  L276                IsEmpty]: Start isEmpty. Operand 81523 states and 117178 transitions.
[2023-11-29 00:17:04,912 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10115
[2023-11-29 00:17:04,912 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:17:04,917 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 00:17:04,918 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-29 00:17:04,918 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:17:04,918 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:17:04,923 INFO  L85        PathProgramCache]: Analyzing trace with hash -1601958973, now seen corresponding path program 1 times
[2023-11-29 00:17:04,923 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:17:04,923 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743940351]
[2023-11-29 00:17:04,926 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:17:04,926 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:17:06,279 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:17:30,887 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:17:30,888 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:17:30,888 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743940351]
[2023-11-29 00:17:30,888 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743940351] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:17:30,888 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:17:30,889 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:17:30,890 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841669455]
[2023-11-29 00:17:30,890 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:17:30,896 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:17:30,896 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:17:30,903 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:17:30,903 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:17:30,905 INFO  L87              Difference]: Start difference. First operand 81523 states and 117178 transitions. Second operand  has 3 states, 3 states have (on average 3371.3333333333335) internal successors, (10114), 2 states have internal predecessors, (10114), 0 states have call successors, (0), 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 00:18:10,420 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:18:10,420 INFO  L93              Difference]: Finished difference Result 244565 states and 351531 transitions.
[2023-11-29 00:18:10,420 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:18:10,422 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3371.3333333333335) internal successors, (10114), 2 states have internal predecessors, (10114), 0 states have call successors, (0), 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 10114
[2023-11-29 00:18:10,422 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:18:10,588 INFO  L225             Difference]: With dead ends: 244565
[2023-11-29 00:18:10,588 INFO  L226             Difference]: Without dead ends: 163043
[2023-11-29 00:18:10,619 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:18:10,620 INFO  L413           NwaCegarLoop]: 6166 mSDtfsCounter, 13400 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27534 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13400 SdHoareTripleChecker+Valid, 6215 SdHoareTripleChecker+Invalid, 40564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time
[2023-11-29 00:18:10,620 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13400 Valid, 6215 Invalid, 40564 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27534 Invalid, 0 Unknown, 0 Unchecked, 38.0s Time]
[2023-11-29 00:18:10,711 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163043 states.
[2023-11-29 00:18:11,791 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163043 to 163043.
[2023-11-29 00:18:11,905 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163043 states, 163042 states have (on average 1.313771911531998) internal successors, (214200), 163042 states have internal predecessors, (214200), 0 states have call successors, (0), 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 00:18:12,066 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163043 states to 163043 states and 214200 transitions.
[2023-11-29 00:18:12,066 INFO  L78                 Accepts]: Start accepts. Automaton has 163043 states and 214200 transitions. Word has length 10114
[2023-11-29 00:18:12,067 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:18:12,067 INFO  L495      AbstractCegarLoop]: Abstraction has 163043 states and 214200 transitions.
[2023-11-29 00:18:12,069 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3371.3333333333335) internal successors, (10114), 2 states have internal predecessors, (10114), 0 states have call successors, (0), 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 00:18:12,069 INFO  L276                IsEmpty]: Start isEmpty. Operand 163043 states and 214200 transitions.
[2023-11-29 00:18:13,155 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10125
[2023-11-29 00:18:13,155 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:18:13,159 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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]
[2023-11-29 00:18:13,159 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-29 00:18:13,159 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:18:13,159 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:18:13,164 INFO  L85        PathProgramCache]: Analyzing trace with hash 617599594, now seen corresponding path program 1 times
[2023-11-29 00:18:13,164 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:18:13,164 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247030312]
[2023-11-29 00:18:13,166 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:18:13,166 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:18:14,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:18:45,637 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:18:45,637 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:18:45,637 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247030312]
[2023-11-29 00:18:45,637 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247030312] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:18:45,637 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:18:45,640 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:18:45,640 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422712209]
[2023-11-29 00:18:45,640 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:18:45,647 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:18:45,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:18:45,654 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:18:45,654 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:18:45,657 INFO  L87              Difference]: Start difference. First operand 163043 states and 214200 transitions. Second operand  has 3 states, 3 states have (on average 3374.6666666666665) internal successors, (10124), 2 states have internal predecessors, (10124), 0 states have call successors, (0), 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 00:19:20,488 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:19:20,488 INFO  L93              Difference]: Finished difference Result 407605 states and 527575 transitions.
[2023-11-29 00:19:20,488 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:19:20,490 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3374.6666666666665) internal successors, (10124), 2 states have internal predecessors, (10124), 0 states have call successors, (0), 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 10124
[2023-11-29 00:19:20,490 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:19:20,794 INFO  L225             Difference]: With dead ends: 407605
[2023-11-29 00:19:20,795 INFO  L226             Difference]: Without dead ends: 244563
[2023-11-29 00:19:20,848 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:19:20,849 INFO  L413           NwaCegarLoop]: 8005 mSDtfsCounter, 11128 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28481 mSolverCounterSat, 7491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11128 SdHoareTripleChecker+Valid, 8054 SdHoareTripleChecker+Invalid, 35972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7491 IncrementalHoareTripleChecker+Valid, 28481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.2s IncrementalHoareTripleChecker+Time
[2023-11-29 00:19:20,849 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11128 Valid, 8054 Invalid, 35972 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7491 Valid, 28481 Invalid, 0 Unknown, 0 Unchecked, 33.2s Time]
[2023-11-29 00:19:20,983 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 244563 states.
[2023-11-29 00:19:22,986 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 244563 to 244563.
[2023-11-29 00:19:23,090 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 244563 states, 244562 states have (on average 1.2438890751629443) internal successors, (304208), 244562 states have internal predecessors, (304208), 0 states have call successors, (0), 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 00:19:23,336 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 244563 states to 244563 states and 304208 transitions.
[2023-11-29 00:19:23,336 INFO  L78                 Accepts]: Start accepts. Automaton has 244563 states and 304208 transitions. Word has length 10124
[2023-11-29 00:19:23,336 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:19:23,336 INFO  L495      AbstractCegarLoop]: Abstraction has 244563 states and 304208 transitions.
[2023-11-29 00:19:23,339 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3374.6666666666665) internal successors, (10124), 2 states have internal predecessors, (10124), 0 states have call successors, (0), 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 00:19:23,339 INFO  L276                IsEmpty]: Start isEmpty. Operand 244563 states and 304208 transitions.
[2023-11-29 00:19:24,374 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10154
[2023-11-29 00:19:24,374 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:19:24,376 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:24,376 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-29 00:19:24,376 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:19:24,376 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:19:24,378 INFO  L85        PathProgramCache]: Analyzing trace with hash -700631729, now seen corresponding path program 1 times
[2023-11-29 00:19:24,378 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:19:24,378 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550552078]
[2023-11-29 00:19:24,379 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:19:24,379 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:19:25,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:19:46,072 INFO  L134       CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:19:46,072 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:19:46,072 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550552078]
[2023-11-29 00:19:46,073 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550552078] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:19:46,073 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:19:46,074 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:19:46,074 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071232369]
[2023-11-29 00:19:46,075 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:19:46,079 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:19:46,080 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:19:46,085 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:19:46,085 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:19:46,088 INFO  L87              Difference]: Start difference. First operand 244563 states and 304208 transitions. Second operand  has 3 states, 3 states have (on average 3384.3333333333335) internal successors, (10153), 2 states have internal predecessors, (10153), 0 states have call successors, (0), 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 00:20:26,306 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:20:26,307 INFO  L93              Difference]: Finished difference Result 733685 states and 912621 transitions.
[2023-11-29 00:20:26,307 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:20:26,309 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3384.3333333333335) internal successors, (10153), 2 states have internal predecessors, (10153), 0 states have call successors, (0), 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 10153
[2023-11-29 00:20:26,309 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:20:26,859 INFO  L225             Difference]: With dead ends: 733685
[2023-11-29 00:20:26,859 INFO  L226             Difference]: Without dead ends: 489123
[2023-11-29 00:20:27,082 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:20:27,083 INFO  L413           NwaCegarLoop]: 7235 mSDtfsCounter, 11831 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30503 mSolverCounterSat, 11086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11831 SdHoareTripleChecker+Valid, 7284 SdHoareTripleChecker+Invalid, 41589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11086 IncrementalHoareTripleChecker+Valid, 30503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.6s IncrementalHoareTripleChecker+Time
[2023-11-29 00:20:27,083 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11831 Valid, 7284 Invalid, 41589 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11086 Valid, 30503 Invalid, 0 Unknown, 0 Unchecked, 37.6s Time]
[2023-11-29 00:20:27,354 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 489123 states.
[2023-11-29 00:20:31,549 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 489123 to 489123.
[2023-11-29 00:20:31,818 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 489123 states, 489122 states have (on average 1.1869472238010148) internal successors, (580562), 489122 states have internal predecessors, (580562), 0 states have call successors, (0), 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 00:20:32,838 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 489123 states to 489123 states and 580562 transitions.
[2023-11-29 00:20:32,838 INFO  L78                 Accepts]: Start accepts. Automaton has 489123 states and 580562 transitions. Word has length 10153
[2023-11-29 00:20:32,838 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:20:32,838 INFO  L495      AbstractCegarLoop]: Abstraction has 489123 states and 580562 transitions.
[2023-11-29 00:20:32,840 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3384.3333333333335) internal successors, (10153), 2 states have internal predecessors, (10153), 0 states have call successors, (0), 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 00:20:32,840 INFO  L276                IsEmpty]: Start isEmpty. Operand 489123 states and 580562 transitions.
[2023-11-29 00:20:34,562 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10244
[2023-11-29 00:20:34,562 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:20:34,564 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2023-11-29 00:20:34,564 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-29 00:20:34,564 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:20:34,564 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:20:34,566 INFO  L85        PathProgramCache]: Analyzing trace with hash -499313330, now seen corresponding path program 1 times
[2023-11-29 00:20:34,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:20:34,566 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946136005]
[2023-11-29 00:20:34,567 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:20:34,567 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:20:35,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:20:56,747 INFO  L134       CoverageAnalysis]: Checked inductivity of 139 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:20:56,748 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:20:56,748 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946136005]
[2023-11-29 00:20:56,748 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946136005] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:20:56,748 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:20:56,750 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:20:56,750 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119530066]
[2023-11-29 00:20:56,750 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:20:56,756 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:20:56,756 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:20:56,761 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:20:56,761 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:20:56,764 INFO  L87              Difference]: Start difference. First operand 489123 states and 580562 transitions. Second operand  has 3 states, 3 states have (on average 3414.3333333333335) internal successors, (10243), 2 states have internal predecessors, (10243), 0 states have call successors, (0), 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 00:21:38,764 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:21:38,765 INFO  L93              Difference]: Finished difference Result 1467365 states and 1741683 transitions.
[2023-11-29 00:21:38,765 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:21:38,767 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3414.3333333333335) internal successors, (10243), 2 states have internal predecessors, (10243), 0 states have call successors, (0), 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 10243
[2023-11-29 00:21:38,767 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:21:39,927 INFO  L225             Difference]: With dead ends: 1467365
[2023-11-29 00:21:39,927 INFO  L226             Difference]: Without dead ends: 978243
[2023-11-29 00:21:40,116 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:21:40,117 INFO  L413           NwaCegarLoop]: 6464 mSDtfsCounter, 12329 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30672 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12329 SdHoareTripleChecker+Valid, 6513 SdHoareTripleChecker+Invalid, 41173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 30672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.2s IncrementalHoareTripleChecker+Time
[2023-11-29 00:21:40,117 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12329 Valid, 6513 Invalid, 41173 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [10501 Valid, 30672 Invalid, 0 Unknown, 0 Unchecked, 37.2s Time]
[2023-11-29 00:21:41,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 978243 states.
[2023-11-29 00:21:48,869 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 978243 to 978243.
[2023-11-29 00:21:49,343 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 978243 states, 978242 states have (on average 1.1423635460346213) internal successors, (1117508), 978242 states have internal predecessors, (1117508), 0 states have call successors, (0), 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 00:21:51,622 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 978243 states to 978243 states and 1117508 transitions.
[2023-11-29 00:21:51,622 INFO  L78                 Accepts]: Start accepts. Automaton has 978243 states and 1117508 transitions. Word has length 10243
[2023-11-29 00:21:51,623 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:21:51,623 INFO  L495      AbstractCegarLoop]: Abstraction has 978243 states and 1117508 transitions.
[2023-11-29 00:21:51,625 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3414.3333333333335) internal successors, (10243), 2 states have internal predecessors, (10243), 0 states have call successors, (0), 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 00:21:51,625 INFO  L276                IsEmpty]: Start isEmpty. Operand 978243 states and 1117508 transitions.
[2023-11-29 00:21:53,519 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10440
[2023-11-29 00:21:53,521 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:21:53,523 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-11-29 00:21:53,524 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-29 00:21:53,524 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:21:53,524 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:21:53,526 INFO  L85        PathProgramCache]: Analyzing trace with hash -1972931179, now seen corresponding path program 1 times
[2023-11-29 00:21:53,526 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:21:53,526 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618787561]
[2023-11-29 00:21:53,527 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:21:53,528 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:21:55,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:22:47,319 INFO  L134       CoverageAnalysis]: Checked inductivity of 383 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked.
[2023-11-29 00:22:47,319 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:22:47,319 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618787561]
[2023-11-29 00:22:47,319 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618787561] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:22:47,319 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:22:47,321 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-29 00:22:47,321 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369246066]
[2023-11-29 00:22:47,321 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:22:47,327 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-29 00:22:47,327 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:22:47,332 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-29 00:22:47,332 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-29 00:22:47,335 INFO  L87              Difference]: Start difference. First operand 978243 states and 1117508 transitions. Second operand  has 6 states, 6 states have (on average 1731.6666666666667) internal successors, (10390), 5 states have internal predecessors, (10390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)