./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a7e0baeaec9166977e35877266ecd8d02003b6a17c023c6c66f433789b3f2bc2
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 07:02:45,056 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-12-02 07:02:45,111 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-02 07:02:45,116 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 07:02:45,117 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 07:02:45,138 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 07:02:45,138 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 07:02:45,139 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 07:02:45,139 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 07:02:45,139 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-12-02 07:02:45,139 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 07:02:45,139 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 07:02:45,140 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 07:02:45,140 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-12-02 07:02:45,140 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-12-02 07:02:45,140 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 07:02:45,140 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-12-02 07:02:45,140 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-12-02 07:02:45,140 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-12-02 07:02:45,140 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-12-02 07:02:45,141 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 07:02:45,141 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 07:02:45,141 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 07:02:45,142 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 07:02:45,142 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 07:02:45,142 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 07:02:45,142 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-12-02 07:02:45,142 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 07:02:45,142 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-12-02 07:02:45,142 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 07:02:45,142 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 07:02:45,142 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 07:02:45,142 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 07:02:45,142 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 07:02:45,142 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e0baeaec9166977e35877266ecd8d02003b6a17c023c6c66f433789b3f2bc2
[2024-12-02 07:02:45,345 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 07:02:45,352 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 07:02:45,355 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 07:02:45,356 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-12-02 07:02:45,356 INFO  L274        PluginConnector]: CDTParser initialized
[2024-12-02 07:02:45,357 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c
[2024-12-02 07:02:48,004 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/data/851691a25/41ce26a223a2428ca8fc60363bbab9b0/FLAG36b2ba599
[2024-12-02 07:02:48,357 INFO  L384              CDTParser]: Found 1 translation units.
[2024-12-02 07:02:48,357 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c
[2024-12-02 07:02:48,385 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/data/851691a25/41ce26a223a2428ca8fc60363bbab9b0/FLAG36b2ba599
[2024-12-02 07:02:48,400 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/data/851691a25/41ce26a223a2428ca8fc60363bbab9b0
[2024-12-02 07:02:48,403 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 07:02:48,404 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 07:02:48,405 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 07:02:48,406 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 07:02:48,410 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 07:02:48,411 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:02:48" (1/1) ...
[2024-12-02 07:02:48,411 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9855f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:48, skipping insertion in model container
[2024-12-02 07:02:48,412 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:02:48" (1/1) ...
[2024-12-02 07:02:48,490 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-12-02 07:02:48,672 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c[1183,1196]
[2024-12-02 07:02:49,108 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 07:02:49,114 INFO  L200         MainTranslator]: Completed pre-run
[2024-12-02 07:02:49,121 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c[1183,1196]
[2024-12-02 07:02:49,362 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 07:02:49,373 INFO  L204         MainTranslator]: Completed translation
[2024-12-02 07:02:49,374 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49 WrapperNode
[2024-12-02 07:02:49,374 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 07:02:49,375 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 07:02:49,375 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 07:02:49,375 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 07:02:49,380 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:49,452 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:50,467 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15529
[2024-12-02 07:02:50,468 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 07:02:50,469 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 07:02:50,469 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 07:02:50,469 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 07:02:50,478 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:50,478 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:50,893 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:51,047 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-02 07:02:51,047 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:51,047 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:51,369 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:51,398 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:51,456 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:51,522 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:51,562 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:51,751 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 07:02:51,752 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 07:02:51,752 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 07:02:51,752 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-12-02 07:02:51,753 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (1/1) ...
[2024-12-02 07:02:51,758 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 07:02:51,768 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:02:51,777 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 07:02:51,779 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 07:02:51,800 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 07:02:51,800 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 07:02:51,800 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 07:02:51,800 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 07:02:52,494 INFO  L234             CfgBuilder]: Building ICFG
[2024-12-02 07:02:52,496 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 07:03:22,081 INFO  L?                        ?]: Removed 8522 outVars from TransFormulas that were not future-live.
[2024-12-02 07:03:22,081 INFO  L283             CfgBuilder]: Performing block encoding
[2024-12-02 07:03:22,151 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 07:03:22,151 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 07:03:22,152 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:03:22 BoogieIcfgContainer
[2024-12-02 07:03:22,152 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 07:03:22,155 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 07:03:22,155 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 07:03:22,159 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-12-02 07:03:22,160 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:02:48" (1/3) ...
[2024-12-02 07:03:22,160 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3176923b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:03:22, skipping insertion in model container
[2024-12-02 07:03:22,160 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:02:49" (2/3) ...
[2024-12-02 07:03:22,161 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3176923b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:03:22, skipping insertion in model container
[2024-12-02 07:03:22,161 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:03:22" (3/3) ...
[2024-12-02 07:03:22,162 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.production_cell.5.prop1-back-serstep.c
[2024-12-02 07:03:22,177 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 07:03:22,178 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.production_cell.5.prop1-back-serstep.c that has 1 procedures, 5470 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 07:03:22,313 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 07:03:22,325 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@551bae4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 07:03:22,325 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 07:03:22,340 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5470 states, 5468 states have (on average 1.4998171177761521) internal successors, (8201), 5469 states have internal predecessors, (8201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:22,365 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 546
[2024-12-02 07:03:22,365 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:03:22,366 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:03:22,367 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:03:22,372 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:03:22,372 INFO  L85        PathProgramCache]: Analyzing trace with hash -1922414400, now seen corresponding path program 1 times
[2024-12-02 07:03:22,380 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:03:22,380 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744409001]
[2024-12-02 07:03:22,380 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:03:22,381 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:03:23,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:03:24,602 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:03:24,603 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:03:24,603 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744409001]
[2024-12-02 07:03:24,604 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744409001] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:03:24,604 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:03:24,604 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 07:03:24,605 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313857442]
[2024-12-02 07:03:24,606 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:03:24,611 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 07:03:24,611 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:03:24,630 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 07:03:24,631 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:03:24,641 INFO  L87              Difference]: Start difference. First operand  has 5470 states, 5468 states have (on average 1.4998171177761521) internal successors, (8201), 5469 states have internal predecessors, (8201), 0 states have call successors, (0), 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 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:30,448 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:03:30,448 INFO  L93              Difference]: Finished difference Result 15596 states and 23389 transitions.
[2024-12-02 07:03:30,449 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 07:03:30,450 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 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 545
[2024-12-02 07:03:30,451 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:03:30,483 INFO  L225             Difference]: With dead ends: 15596
[2024-12-02 07:03:30,484 INFO  L226             Difference]: Without dead ends: 10412
[2024-12-02 07:03:30,492 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 07:03:30,495 INFO  L435           NwaCegarLoop]: 6066 mSDtfsCounter, 7530 mSDsluCounter, 18061 mSDsCounter, 0 mSdLazyCounter, 8234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7530 SdHoareTripleChecker+Valid, 24127 SdHoareTripleChecker+Invalid, 8235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2024-12-02 07:03:30,496 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7530 Valid, 24127 Invalid, 8235 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 8234 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2024-12-02 07:03:30,516 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10412 states.
[2024-12-02 07:03:30,639 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10412 to 5806.
[2024-12-02 07:03:30,652 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5806 states, 5805 states have (on average 1.4993970714900948) internal successors, (8704), 5805 states have internal predecessors, (8704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:30,669 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 8704 transitions.
[2024-12-02 07:03:30,670 INFO  L78                 Accepts]: Start accepts. Automaton has 5806 states and 8704 transitions. Word has length 545
[2024-12-02 07:03:30,672 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:03:30,672 INFO  L471      AbstractCegarLoop]: Abstraction has 5806 states and 8704 transitions.
[2024-12-02 07:03:30,672 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:30,672 INFO  L276                IsEmpty]: Start isEmpty. Operand 5806 states and 8704 transitions.
[2024-12-02 07:03:30,681 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 548
[2024-12-02 07:03:30,682 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:03:30,682 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:03:30,682 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 07:03:30,682 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:03:30,683 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:03:30,683 INFO  L85        PathProgramCache]: Analyzing trace with hash -1514730499, now seen corresponding path program 1 times
[2024-12-02 07:03:30,683 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:03:30,683 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333595380]
[2024-12-02 07:03:30,684 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:03:30,684 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:03:30,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:03:32,051 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:03:32,051 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:03:32,052 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333595380]
[2024-12-02 07:03:32,052 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333595380] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:03:32,052 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:03:32,052 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:03:32,052 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551993058]
[2024-12-02 07:03:32,052 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:03:32,056 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:03:32,056 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:03:32,057 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:03:32,057 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:03:32,058 INFO  L87              Difference]: Start difference. First operand 5806 states and 8704 transitions. Second operand  has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:32,202 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:03:32,202 INFO  L93              Difference]: Finished difference Result 5810 states and 8708 transitions.
[2024-12-02 07:03:32,202 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:03:32,203 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 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 547
[2024-12-02 07:03:32,204 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:03:32,223 INFO  L225             Difference]: With dead ends: 5810
[2024-12-02 07:03:32,223 INFO  L226             Difference]: Without dead ends: 5808
[2024-12-02 07:03:32,226 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:03:32,228 INFO  L435           NwaCegarLoop]: 8195 mSDtfsCounter, 0 mSDsluCounter, 16384 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24579 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:03:32,228 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24579 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:03:32,239 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5808 states.
[2024-12-02 07:03:32,328 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5808 to 5808.
[2024-12-02 07:03:32,339 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5808 states, 5807 states have (on average 1.4992250731875323) internal successors, (8706), 5807 states have internal predecessors, (8706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:32,351 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 8706 transitions.
[2024-12-02 07:03:32,351 INFO  L78                 Accepts]: Start accepts. Automaton has 5808 states and 8706 transitions. Word has length 547
[2024-12-02 07:03:32,353 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:03:32,355 INFO  L471      AbstractCegarLoop]: Abstraction has 5808 states and 8706 transitions.
[2024-12-02 07:03:32,355 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:32,355 INFO  L276                IsEmpty]: Start isEmpty. Operand 5808 states and 8706 transitions.
[2024-12-02 07:03:32,361 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 549
[2024-12-02 07:03:32,361 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:03:32,361 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:03:32,361 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 07:03:32,362 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:03:32,362 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:03:32,363 INFO  L85        PathProgramCache]: Analyzing trace with hash 289693450, now seen corresponding path program 1 times
[2024-12-02 07:03:32,363 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:03:32,363 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738014006]
[2024-12-02 07:03:32,363 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:03:32,364 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:03:32,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:03:33,527 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:03:33,527 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:03:33,527 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738014006]
[2024-12-02 07:03:33,527 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738014006] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:03:33,527 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:03:33,527 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:03:33,527 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318935915]
[2024-12-02 07:03:33,528 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:03:33,528 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:03:33,528 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:03:33,529 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:03:33,529 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:03:33,529 INFO  L87              Difference]: Start difference. First operand 5808 states and 8706 transitions. Second operand  has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:33,649 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:03:33,649 INFO  L93              Difference]: Finished difference Result 10993 states and 16480 transitions.
[2024-12-02 07:03:33,649 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:03:33,650 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 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 548
[2024-12-02 07:03:33,650 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:03:33,667 INFO  L225             Difference]: With dead ends: 10993
[2024-12-02 07:03:33,667 INFO  L226             Difference]: Without dead ends: 5810
[2024-12-02 07:03:33,673 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:03:33,674 INFO  L435           NwaCegarLoop]: 8195 mSDtfsCounter, 0 mSDsluCounter, 16380 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24575 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:03:33,674 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24575 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:03:33,682 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5810 states.
[2024-12-02 07:03:33,763 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5810 to 5810.
[2024-12-02 07:03:33,772 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5810 states, 5809 states have (on average 1.4990531933207092) internal successors, (8708), 5809 states have internal predecessors, (8708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:33,783 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 8708 transitions.
[2024-12-02 07:03:33,783 INFO  L78                 Accepts]: Start accepts. Automaton has 5810 states and 8708 transitions. Word has length 548
[2024-12-02 07:03:33,784 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:03:33,784 INFO  L471      AbstractCegarLoop]: Abstraction has 5810 states and 8708 transitions.
[2024-12-02 07:03:33,785 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:33,785 INFO  L276                IsEmpty]: Start isEmpty. Operand 5810 states and 8708 transitions.
[2024-12-02 07:03:33,790 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 550
[2024-12-02 07:03:33,790 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:03:33,790 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:03:33,790 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 07:03:33,791 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:03:33,791 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:03:33,791 INFO  L85        PathProgramCache]: Analyzing trace with hash -707400074, now seen corresponding path program 1 times
[2024-12-02 07:03:33,792 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:03:33,792 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468508719]
[2024-12-02 07:03:33,792 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:03:33,792 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:03:33,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:03:34,820 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:03:34,820 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:03:34,820 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468508719]
[2024-12-02 07:03:34,820 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468508719] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:03:34,820 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:03:34,820 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 07:03:34,820 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989677696]
[2024-12-02 07:03:34,820 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:03:34,821 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 07:03:34,822 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:03:34,822 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 07:03:34,822 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:03:34,823 INFO  L87              Difference]: Start difference. First operand 5810 states and 8708 transitions. Second operand  has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:35,048 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:03:35,048 INFO  L93              Difference]: Finished difference Result 15827 states and 23726 transitions.
[2024-12-02 07:03:35,048 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 07:03:35,049 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 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 549
[2024-12-02 07:03:35,050 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:03:35,076 INFO  L225             Difference]: With dead ends: 15827
[2024-12-02 07:03:35,076 INFO  L226             Difference]: Without dead ends: 10642
[2024-12-02 07:03:35,084 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 07:03:35,084 INFO  L435           NwaCegarLoop]: 8193 mSDtfsCounter, 7638 mSDsluCounter, 24146 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7638 SdHoareTripleChecker+Valid, 32339 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:03:35,085 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7638 Valid, 32339 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:03:35,098 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10642 states.
[2024-12-02 07:03:35,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 6261.
[2024-12-02 07:03:35,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6261 states, 6260 states have (on average 1.4988817891373802) internal successors, (9383), 6260 states have internal predecessors, (9383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:35,216 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6261 states to 6261 states and 9383 transitions.
[2024-12-02 07:03:35,216 INFO  L78                 Accepts]: Start accepts. Automaton has 6261 states and 9383 transitions. Word has length 549
[2024-12-02 07:03:35,217 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:03:35,217 INFO  L471      AbstractCegarLoop]: Abstraction has 6261 states and 9383 transitions.
[2024-12-02 07:03:35,218 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:35,218 INFO  L276                IsEmpty]: Start isEmpty. Operand 6261 states and 9383 transitions.
[2024-12-02 07:03:35,291 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3141
[2024-12-02 07:03:35,291 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:03:35,293 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:03:35,293 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 07:03:35,293 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:03:35,294 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:03:35,296 INFO  L85        PathProgramCache]: Analyzing trace with hash -1419616929, now seen corresponding path program 1 times
[2024-12-02 07:03:35,296 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:03:35,296 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583609207]
[2024-12-02 07:03:35,297 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:03:35,297 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:03:38,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:03:43,690 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked.
[2024-12-02 07:03:43,691 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:03:43,691 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583609207]
[2024-12-02 07:03:43,691 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583609207] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:03:43,692 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:03:43,692 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 07:03:43,693 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47499184]
[2024-12-02 07:03:43,693 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:03:43,695 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 07:03:43,696 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:03:43,698 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 07:03:43,698 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:03:43,699 INFO  L87              Difference]: Start difference. First operand 6261 states and 9383 transitions. Second operand  has 5 states, 5 states have (on average 549.6) internal successors, (2748), 5 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:43,798 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:03:43,799 INFO  L93              Difference]: Finished difference Result 11450 states and 17161 transitions.
[2024-12-02 07:03:43,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:03:43,799 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 549.6) internal successors, (2748), 5 states have internal predecessors, (2748), 0 states have call successors, (0), 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 3140
[2024-12-02 07:03:43,803 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:03:43,815 INFO  L225             Difference]: With dead ends: 11450
[2024-12-02 07:03:43,815 INFO  L226             Difference]: Without dead ends: 6265
[2024-12-02 07:03:43,821 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:03:43,823 INFO  L435           NwaCegarLoop]: 8195 mSDtfsCounter, 0 mSDsluCounter, 16380 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24575 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:03:43,824 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24575 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:03:43,836 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6265 states.
[2024-12-02 07:03:43,947 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 6261.
[2024-12-02 07:03:43,955 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6261 states, 6260 states have (on average 1.4988817891373802) internal successors, (9383), 6260 states have internal predecessors, (9383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:43,963 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6261 states to 6261 states and 9383 transitions.
[2024-12-02 07:03:43,963 INFO  L78                 Accepts]: Start accepts. Automaton has 6261 states and 9383 transitions. Word has length 3140
[2024-12-02 07:03:43,968 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:03:43,968 INFO  L471      AbstractCegarLoop]: Abstraction has 6261 states and 9383 transitions.
[2024-12-02 07:03:43,969 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 549.6) internal successors, (2748), 5 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:43,969 INFO  L276                IsEmpty]: Start isEmpty. Operand 6261 states and 9383 transitions.
[2024-12-02 07:03:44,041 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3142
[2024-12-02 07:03:44,041 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:03:44,043 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:03:44,043 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 07:03:44,044 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:03:44,045 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:03:44,046 INFO  L85        PathProgramCache]: Analyzing trace with hash -149561528, now seen corresponding path program 1 times
[2024-12-02 07:03:44,046 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:03:44,046 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334857714]
[2024-12-02 07:03:44,047 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:03:44,047 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:03:46,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:03:51,617 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2024-12-02 07:03:51,617 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:03:51,617 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334857714]
[2024-12-02 07:03:51,617 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334857714] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:03:51,617 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:03:51,617 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 07:03:51,618 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848378327]
[2024-12-02 07:03:51,618 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:03:51,620 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 07:03:51,620 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:03:51,621 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 07:03:51,622 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:03:51,622 INFO  L87              Difference]: Start difference. First operand 6261 states and 9383 transitions. Second operand  has 5 states, 5 states have (on average 550.2) internal successors, (2751), 5 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:51,735 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:03:51,736 INFO  L93              Difference]: Finished difference Result 11454 states and 17167 transitions.
[2024-12-02 07:03:51,736 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:03:51,737 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 550.2) internal successors, (2751), 5 states have internal predecessors, (2751), 0 states have call successors, (0), 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 3141
[2024-12-02 07:03:51,740 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:03:51,748 INFO  L225             Difference]: With dead ends: 11454
[2024-12-02 07:03:51,748 INFO  L226             Difference]: Without dead ends: 6265
[2024-12-02 07:03:51,752 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:03:51,752 INFO  L435           NwaCegarLoop]: 8195 mSDtfsCounter, 0 mSDsluCounter, 24569 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32764 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:03:51,753 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32764 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:03:51,759 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6265 states.
[2024-12-02 07:03:51,805 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 6263.
[2024-12-02 07:03:51,810 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6263 states, 6262 states have (on average 1.4987224528904504) internal successors, (9385), 6262 states have internal predecessors, (9385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:51,816 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6263 states to 6263 states and 9385 transitions.
[2024-12-02 07:03:51,816 INFO  L78                 Accepts]: Start accepts. Automaton has 6263 states and 9385 transitions. Word has length 3141
[2024-12-02 07:03:51,818 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:03:51,818 INFO  L471      AbstractCegarLoop]: Abstraction has 6263 states and 9385 transitions.
[2024-12-02 07:03:51,818 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 550.2) internal successors, (2751), 5 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:03:51,818 INFO  L276                IsEmpty]: Start isEmpty. Operand 6263 states and 9385 transitions.
[2024-12-02 07:03:51,860 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3143
[2024-12-02 07:03:51,861 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:03:51,862 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:03:51,862 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 07:03:51,862 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:03:51,863 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:03:51,864 INFO  L85        PathProgramCache]: Analyzing trace with hash 772756632, now seen corresponding path program 1 times
[2024-12-02 07:03:51,864 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:03:51,864 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880980101]
[2024-12-02 07:03:51,864 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:03:51,865 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:03:59,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:04:04,709 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:04:04,709 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:04:04,709 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880980101]
[2024-12-02 07:04:04,709 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880980101] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:04:04,709 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:04:04,710 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:04:04,710 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019877014]
[2024-12-02 07:04:04,710 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:04:04,712 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:04:04,712 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:04:04,714 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:04:04,715 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:04:04,716 INFO  L87              Difference]: Start difference. First operand 6263 states and 9385 transitions. Second operand  has 4 states, 4 states have (on average 785.5) internal successors, (3142), 4 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:07,382 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:04:07,382 INFO  L93              Difference]: Finished difference Result 11452 states and 17162 transitions.
[2024-12-02 07:04:07,382 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:04:07,383 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 785.5) internal successors, (3142), 4 states have internal predecessors, (3142), 0 states have call successors, (0), 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 3142
[2024-12-02 07:04:07,385 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:04:07,397 INFO  L225             Difference]: With dead ends: 11452
[2024-12-02 07:04:07,397 INFO  L226             Difference]: Without dead ends: 6263
[2024-12-02 07:04:07,401 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:04:07,402 INFO  L435           NwaCegarLoop]: 6067 mSDtfsCounter, 7118 mSDsluCounter, 6059 mSDsCounter, 0 mSdLazyCounter, 4264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7118 SdHoareTripleChecker+Valid, 12126 SdHoareTripleChecker+Invalid, 4265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-12-02 07:04:07,402 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7118 Valid, 12126 Invalid, 4265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4264 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-12-02 07:04:07,411 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6263 states.
[2024-12-02 07:04:07,500 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6263 to 6263.
[2024-12-02 07:04:07,509 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6263 states, 6262 states have (on average 1.4985627595017565) internal successors, (9384), 6262 states have internal predecessors, (9384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:07,522 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6263 states to 6263 states and 9384 transitions.
[2024-12-02 07:04:07,522 INFO  L78                 Accepts]: Start accepts. Automaton has 6263 states and 9384 transitions. Word has length 3142
[2024-12-02 07:04:07,524 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:04:07,524 INFO  L471      AbstractCegarLoop]: Abstraction has 6263 states and 9384 transitions.
[2024-12-02 07:04:07,525 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 785.5) internal successors, (3142), 4 states have internal predecessors, (3142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:07,525 INFO  L276                IsEmpty]: Start isEmpty. Operand 6263 states and 9384 transitions.
[2024-12-02 07:04:07,653 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3144
[2024-12-02 07:04:07,653 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:04:07,654 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:04:07,654 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 07:04:07,655 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:04:07,656 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:04:07,657 INFO  L85        PathProgramCache]: Analyzing trace with hash -213466193, now seen corresponding path program 1 times
[2024-12-02 07:04:07,657 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:04:07,658 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871626234]
[2024-12-02 07:04:07,658 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:04:07,658 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:04:10,058 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:04:14,412 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked.
[2024-12-02 07:04:14,413 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:04:14,413 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871626234]
[2024-12-02 07:04:14,413 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871626234] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:04:14,413 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:04:14,414 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:04:14,414 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932848455]
[2024-12-02 07:04:14,414 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:04:14,415 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:04:14,415 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:04:14,416 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:04:14,416 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:04:14,417 INFO  L87              Difference]: Start difference. First operand 6263 states and 9384 transitions. Second operand  has 4 states, 4 states have (on average 688.75) internal successors, (2755), 4 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:14,493 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:04:14,493 INFO  L93              Difference]: Finished difference Result 11462 states and 17175 transitions.
[2024-12-02 07:04:14,493 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:04:14,494 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 688.75) internal successors, (2755), 4 states have internal predecessors, (2755), 0 states have call successors, (0), 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 3143
[2024-12-02 07:04:14,496 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:04:14,504 INFO  L225             Difference]: With dead ends: 11462
[2024-12-02 07:04:14,504 INFO  L226             Difference]: Without dead ends: 6267
[2024-12-02 07:04:14,507 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:04:14,508 INFO  L435           NwaCegarLoop]: 8194 mSDtfsCounter, 0 mSDsluCounter, 16378 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24572 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:04:14,508 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24572 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:04:14,513 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6267 states.
[2024-12-02 07:04:14,552 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6267 to 6265.
[2024-12-02 07:04:14,558 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6265 states, 6264 states have (on average 1.498403575989783) internal successors, (9386), 6264 states have internal predecessors, (9386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:14,564 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6265 states to 6265 states and 9386 transitions.
[2024-12-02 07:04:14,564 INFO  L78                 Accepts]: Start accepts. Automaton has 6265 states and 9386 transitions. Word has length 3143
[2024-12-02 07:04:14,565 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:04:14,565 INFO  L471      AbstractCegarLoop]: Abstraction has 6265 states and 9386 transitions.
[2024-12-02 07:04:14,566 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 688.75) internal successors, (2755), 4 states have internal predecessors, (2755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:14,566 INFO  L276                IsEmpty]: Start isEmpty. Operand 6265 states and 9386 transitions.
[2024-12-02 07:04:14,638 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3145
[2024-12-02 07:04:14,638 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:04:14,640 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:04:14,640 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 07:04:14,640 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:04:14,641 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:04:14,641 INFO  L85        PathProgramCache]: Analyzing trace with hash -958963624, now seen corresponding path program 1 times
[2024-12-02 07:04:14,641 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:04:14,641 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535484467]
[2024-12-02 07:04:14,642 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:04:14,642 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:04:22,004 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:04:27,006 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:04:27,007 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:04:27,007 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535484467]
[2024-12-02 07:04:27,007 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535484467] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:04:27,007 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:04:27,007 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:04:27,007 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695922238]
[2024-12-02 07:04:27,007 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:04:27,009 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:04:27,009 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:04:27,013 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:04:27,013 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:04:27,014 INFO  L87              Difference]: Start difference. First operand 6265 states and 9386 transitions. Second operand  has 4 states, 4 states have (on average 786.0) internal successors, (3144), 4 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:29,746 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:04:29,746 INFO  L93              Difference]: Finished difference Result 11456 states and 17164 transitions.
[2024-12-02 07:04:29,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:04:29,747 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 786.0) internal successors, (3144), 4 states have internal predecessors, (3144), 0 states have call successors, (0), 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 3144
[2024-12-02 07:04:29,749 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:04:29,757 INFO  L225             Difference]: With dead ends: 11456
[2024-12-02 07:04:29,757 INFO  L226             Difference]: Without dead ends: 6265
[2024-12-02 07:04:29,762 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:04:29,762 INFO  L435           NwaCegarLoop]: 6067 mSDtfsCounter, 7038 mSDsluCounter, 6059 mSDsCounter, 0 mSdLazyCounter, 4262 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7038 SdHoareTripleChecker+Valid, 12126 SdHoareTripleChecker+Invalid, 4263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-12-02 07:04:29,763 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7038 Valid, 12126 Invalid, 4263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4262 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-12-02 07:04:29,772 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6265 states.
[2024-12-02 07:04:29,852 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 6265.
[2024-12-02 07:04:29,858 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6265 states, 6264 states have (on average 1.4982439335887612) internal successors, (9385), 6264 states have internal predecessors, (9385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:29,869 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6265 states to 6265 states and 9385 transitions.
[2024-12-02 07:04:29,869 INFO  L78                 Accepts]: Start accepts. Automaton has 6265 states and 9385 transitions. Word has length 3144
[2024-12-02 07:04:29,871 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:04:29,871 INFO  L471      AbstractCegarLoop]: Abstraction has 6265 states and 9385 transitions.
[2024-12-02 07:04:29,872 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 786.0) internal successors, (3144), 4 states have internal predecessors, (3144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:29,872 INFO  L276                IsEmpty]: Start isEmpty. Operand 6265 states and 9385 transitions.
[2024-12-02 07:04:30,014 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3146
[2024-12-02 07:04:30,014 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:04:30,016 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:04:30,016 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 07:04:30,016 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:04:30,017 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:04:30,019 INFO  L85        PathProgramCache]: Analyzing trace with hash -2005513634, now seen corresponding path program 1 times
[2024-12-02 07:04:30,019 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:04:30,019 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800202508]
[2024-12-02 07:04:30,019 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:04:30,019 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:04:32,077 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:04:36,330 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked.
[2024-12-02 07:04:36,330 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:04:36,330 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800202508]
[2024-12-02 07:04:36,330 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800202508] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:04:36,330 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:04:36,330 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 07:04:36,330 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901892422]
[2024-12-02 07:04:36,330 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:04:36,331 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 07:04:36,331 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:04:36,332 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 07:04:36,333 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:04:36,333 INFO  L87              Difference]: Start difference. First operand 6265 states and 9385 transitions. Second operand  has 5 states, 5 states have (on average 551.8) internal successors, (2759), 5 states have internal predecessors, (2759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:36,417 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:04:36,417 INFO  L93              Difference]: Finished difference Result 11470 states and 17183 transitions.
[2024-12-02 07:04:36,418 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:04:36,418 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 551.8) internal successors, (2759), 5 states have internal predecessors, (2759), 0 states have call successors, (0), 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 3145
[2024-12-02 07:04:36,420 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:04:36,425 INFO  L225             Difference]: With dead ends: 11470
[2024-12-02 07:04:36,425 INFO  L226             Difference]: Without dead ends: 6269
[2024-12-02 07:04:36,428 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:04:36,428 INFO  L435           NwaCegarLoop]: 8193 mSDtfsCounter, 0 mSDsluCounter, 16376 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24569 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:04:36,429 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24569 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:04:36,433 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6269 states.
[2024-12-02 07:04:36,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6269 to 6267.
[2024-12-02 07:04:36,475 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6267 states, 6266 states have (on average 1.498084902649218) internal successors, (9387), 6266 states have internal predecessors, (9387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:36,479 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6267 states to 6267 states and 9387 transitions.
[2024-12-02 07:04:36,480 INFO  L78                 Accepts]: Start accepts. Automaton has 6267 states and 9387 transitions. Word has length 3145
[2024-12-02 07:04:36,481 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:04:36,481 INFO  L471      AbstractCegarLoop]: Abstraction has 6267 states and 9387 transitions.
[2024-12-02 07:04:36,482 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 551.8) internal successors, (2759), 5 states have internal predecessors, (2759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:36,482 INFO  L276                IsEmpty]: Start isEmpty. Operand 6267 states and 9387 transitions.
[2024-12-02 07:04:36,521 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3147
[2024-12-02 07:04:36,522 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:04:36,523 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:04:36,523 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 07:04:36,523 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:04:36,524 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:04:36,524 INFO  L85        PathProgramCache]: Analyzing trace with hash 945664738, now seen corresponding path program 1 times
[2024-12-02 07:04:36,524 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:04:36,524 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321419293]
[2024-12-02 07:04:36,525 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:04:36,525 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:04:38,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:04:42,739 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked.
[2024-12-02 07:04:42,740 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:04:42,740 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321419293]
[2024-12-02 07:04:42,740 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321419293] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:04:42,740 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:04:42,740 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:04:42,740 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251771062]
[2024-12-02 07:04:42,740 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:04:42,741 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:04:42,741 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:04:42,743 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:04:42,744 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:04:42,744 INFO  L87              Difference]: Start difference. First operand 6267 states and 9387 transitions. Second operand  has 4 states, 4 states have (on average 690.5) internal successors, (2762), 4 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:42,816 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:04:42,816 INFO  L93              Difference]: Finished difference Result 11478 states and 17193 transitions.
[2024-12-02 07:04:42,817 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:04:42,817 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 690.5) internal successors, (2762), 4 states have internal predecessors, (2762), 0 states have call successors, (0), 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 3146
[2024-12-02 07:04:42,819 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:04:42,823 INFO  L225             Difference]: With dead ends: 11478
[2024-12-02 07:04:42,823 INFO  L226             Difference]: Without dead ends: 6271
[2024-12-02 07:04:42,826 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:04:42,826 INFO  L435           NwaCegarLoop]: 8193 mSDtfsCounter, 0 mSDsluCounter, 16376 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24569 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:04:42,826 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24569 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:04:42,832 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6271 states.
[2024-12-02 07:04:42,878 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6271 to 6269.
[2024-12-02 07:04:42,883 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6269 states, 6268 states have (on average 1.4979259731971921) internal successors, (9389), 6268 states have internal predecessors, (9389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:42,888 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6269 states to 6269 states and 9389 transitions.
[2024-12-02 07:04:42,888 INFO  L78                 Accepts]: Start accepts. Automaton has 6269 states and 9389 transitions. Word has length 3146
[2024-12-02 07:04:42,889 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:04:42,889 INFO  L471      AbstractCegarLoop]: Abstraction has 6269 states and 9389 transitions.
[2024-12-02 07:04:42,890 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 690.5) internal successors, (2762), 4 states have internal predecessors, (2762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:42,890 INFO  L276                IsEmpty]: Start isEmpty. Operand 6269 states and 9389 transitions.
[2024-12-02 07:04:42,939 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3148
[2024-12-02 07:04:42,939 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:04:42,940 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:04:42,941 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-12-02 07:04:42,941 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:04:42,942 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:04:42,943 INFO  L85        PathProgramCache]: Analyzing trace with hash -1274811163, now seen corresponding path program 1 times
[2024-12-02 07:04:42,943 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:04:42,943 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271715752]
[2024-12-02 07:04:42,943 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:04:42,943 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:04:47,628 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:04:51,939 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:04:51,939 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:04:51,939 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271715752]
[2024-12-02 07:04:51,939 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271715752] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:04:51,939 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:04:51,940 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:04:51,940 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385255856]
[2024-12-02 07:04:51,940 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:04:51,941 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:04:51,941 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:04:51,942 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:04:51,942 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:04:51,943 INFO  L87              Difference]: Start difference. First operand 6269 states and 9389 transitions. Second operand  has 4 states, 4 states have (on average 786.75) internal successors, (3147), 4 states have internal predecessors, (3147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:54,518 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:04:54,518 INFO  L93              Difference]: Finished difference Result 11464 states and 17170 transitions.
[2024-12-02 07:04:54,518 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:04:54,519 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 786.75) internal successors, (3147), 4 states have internal predecessors, (3147), 0 states have call successors, (0), 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 3147
[2024-12-02 07:04:54,519 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:04:54,523 INFO  L225             Difference]: With dead ends: 11464
[2024-12-02 07:04:54,523 INFO  L226             Difference]: Without dead ends: 6269
[2024-12-02 07:04:54,526 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:04:54,526 INFO  L435           NwaCegarLoop]: 6067 mSDtfsCounter, 7954 mSDsluCounter, 6054 mSDsCounter, 0 mSdLazyCounter, 4265 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7954 SdHoareTripleChecker+Valid, 12121 SdHoareTripleChecker+Invalid, 4266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-12-02 07:04:54,526 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7954 Valid, 12121 Invalid, 4266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4265 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-12-02 07:04:54,532 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6269 states.
[2024-12-02 07:04:54,584 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6269 to 6269.
[2024-12-02 07:04:54,589 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6269 states, 6268 states have (on average 1.497766432673899) internal successors, (9388), 6268 states have internal predecessors, (9388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:54,594 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6269 states to 6269 states and 9388 transitions.
[2024-12-02 07:04:54,594 INFO  L78                 Accepts]: Start accepts. Automaton has 6269 states and 9388 transitions. Word has length 3147
[2024-12-02 07:04:54,595 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:04:54,595 INFO  L471      AbstractCegarLoop]: Abstraction has 6269 states and 9388 transitions.
[2024-12-02 07:04:54,595 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 786.75) internal successors, (3147), 4 states have internal predecessors, (3147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:04:54,595 INFO  L276                IsEmpty]: Start isEmpty. Operand 6269 states and 9388 transitions.
[2024-12-02 07:04:54,635 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3149
[2024-12-02 07:04:54,636 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:04:54,637 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:04:54,637 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 07:04:54,637 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:04:54,638 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:04:54,638 INFO  L85        PathProgramCache]: Analyzing trace with hash -1170374109, now seen corresponding path program 1 times
[2024-12-02 07:04:54,638 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:04:54,638 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915496048]
[2024-12-02 07:04:54,639 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:04:54,639 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:04:56,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:05:01,906 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked.
[2024-12-02 07:05:01,906 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:05:01,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915496048]
[2024-12-02 07:05:01,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915496048] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:05:01,906 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:05:01,906 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 07:05:01,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751833921]
[2024-12-02 07:05:01,906 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:05:01,907 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 07:05:01,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:05:01,909 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 07:05:01,909 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:05:01,910 INFO  L87              Difference]: Start difference. First operand 6269 states and 9388 transitions. Second operand  has 5 states, 5 states have (on average 553.2) internal successors, (2766), 5 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:02,005 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:05:02,005 INFO  L93              Difference]: Finished difference Result 11486 states and 17201 transitions.
[2024-12-02 07:05:02,006 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:05:02,006 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 553.2) internal successors, (2766), 5 states have internal predecessors, (2766), 0 states have call successors, (0), 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 3148
[2024-12-02 07:05:02,008 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:05:02,012 INFO  L225             Difference]: With dead ends: 11486
[2024-12-02 07:05:02,012 INFO  L226             Difference]: Without dead ends: 6273
[2024-12-02 07:05:02,016 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:05:02,016 INFO  L435           NwaCegarLoop]: 8192 mSDtfsCounter, 0 mSDsluCounter, 24560 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32752 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:05:02,016 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32752 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:05:02,021 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6273 states.
[2024-12-02 07:05:02,054 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6273 to 6271.
[2024-12-02 07:05:02,058 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6271 states, 6270 states have (on average 1.4976076555023923) internal successors, (9390), 6270 states have internal predecessors, (9390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:02,063 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6271 states to 6271 states and 9390 transitions.
[2024-12-02 07:05:02,063 INFO  L78                 Accepts]: Start accepts. Automaton has 6271 states and 9390 transitions. Word has length 3148
[2024-12-02 07:05:02,064 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:05:02,064 INFO  L471      AbstractCegarLoop]: Abstraction has 6271 states and 9390 transitions.
[2024-12-02 07:05:02,065 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 553.2) internal successors, (2766), 5 states have internal predecessors, (2766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:02,065 INFO  L276                IsEmpty]: Start isEmpty. Operand 6271 states and 9390 transitions.
[2024-12-02 07:05:02,104 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3150
[2024-12-02 07:05:02,104 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:05:02,105 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:05:02,105 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-12-02 07:05:02,106 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:05:02,106 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:05:02,107 INFO  L85        PathProgramCache]: Analyzing trace with hash 2111791709, now seen corresponding path program 1 times
[2024-12-02 07:05:02,107 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:05:02,107 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696669842]
[2024-12-02 07:05:02,107 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:05:02,107 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:05:03,773 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:05:08,811 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked.
[2024-12-02 07:05:08,811 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:05:08,811 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696669842]
[2024-12-02 07:05:08,811 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696669842] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:05:08,811 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:05:08,812 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 07:05:08,812 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705078844]
[2024-12-02 07:05:08,812 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:05:08,814 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 07:05:08,814 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:05:08,816 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 07:05:08,816 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:05:08,816 INFO  L87              Difference]: Start difference. First operand 6271 states and 9390 transitions. Second operand  has 5 states, 5 states have (on average 553.8) internal successors, (2769), 5 states have internal predecessors, (2769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:08,905 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:05:08,905 INFO  L93              Difference]: Finished difference Result 11494 states and 17211 transitions.
[2024-12-02 07:05:08,905 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:05:08,906 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 553.8) internal successors, (2769), 5 states have internal predecessors, (2769), 0 states have call successors, (0), 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 3149
[2024-12-02 07:05:08,908 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:05:08,912 INFO  L225             Difference]: With dead ends: 11494
[2024-12-02 07:05:08,912 INFO  L226             Difference]: Without dead ends: 6275
[2024-12-02 07:05:08,917 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:05:08,918 INFO  L435           NwaCegarLoop]: 8192 mSDtfsCounter, 0 mSDsluCounter, 16374 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24566 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:05:08,918 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24566 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:05:08,923 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6275 states.
[2024-12-02 07:05:08,960 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 6273.
[2024-12-02 07:05:08,965 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6273 states, 6272 states have (on average 1.4974489795918366) internal successors, (9392), 6272 states have internal predecessors, (9392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:08,971 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6273 states to 6273 states and 9392 transitions.
[2024-12-02 07:05:08,971 INFO  L78                 Accepts]: Start accepts. Automaton has 6273 states and 9392 transitions. Word has length 3149
[2024-12-02 07:05:08,972 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:05:08,973 INFO  L471      AbstractCegarLoop]: Abstraction has 6273 states and 9392 transitions.
[2024-12-02 07:05:08,973 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 553.8) internal successors, (2769), 5 states have internal predecessors, (2769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:08,973 INFO  L276                IsEmpty]: Start isEmpty. Operand 6273 states and 9392 transitions.
[2024-12-02 07:05:09,061 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3151
[2024-12-02 07:05:09,061 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:05:09,063 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:05:09,063 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-12-02 07:05:09,063 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:05:09,064 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:05:09,065 INFO  L85        PathProgramCache]: Analyzing trace with hash -1523566038, now seen corresponding path program 1 times
[2024-12-02 07:05:09,065 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:05:09,065 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510943939]
[2024-12-02 07:05:09,065 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:05:09,065 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:05:11,343 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:05:15,803 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked.
[2024-12-02 07:05:15,803 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:05:15,804 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510943939]
[2024-12-02 07:05:15,804 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510943939] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:05:15,804 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:05:15,804 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:05:15,804 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660719687]
[2024-12-02 07:05:15,804 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:05:15,806 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:05:15,806 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:05:15,808 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:05:15,808 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:15,809 INFO  L87              Difference]: Start difference. First operand 6273 states and 9392 transitions. Second operand  has 4 states, 4 states have (on average 693.0) internal successors, (2772), 4 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:15,894 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:05:15,895 INFO  L93              Difference]: Finished difference Result 11502 states and 17221 transitions.
[2024-12-02 07:05:15,895 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:05:15,896 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 693.0) internal successors, (2772), 4 states have internal predecessors, (2772), 0 states have call successors, (0), 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 3150
[2024-12-02 07:05:15,898 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:05:15,901 INFO  L225             Difference]: With dead ends: 11502
[2024-12-02 07:05:15,901 INFO  L226             Difference]: Without dead ends: 6277
[2024-12-02 07:05:15,904 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:15,904 INFO  L435           NwaCegarLoop]: 8192 mSDtfsCounter, 0 mSDsluCounter, 16374 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24566 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:05:15,905 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24566 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:05:15,909 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6277 states.
[2024-12-02 07:05:15,944 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6277 to 6275.
[2024-12-02 07:05:15,948 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6275 states, 6274 states have (on average 1.4972904048453937) internal successors, (9394), 6274 states have internal predecessors, (9394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:15,954 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6275 states to 6275 states and 9394 transitions.
[2024-12-02 07:05:15,954 INFO  L78                 Accepts]: Start accepts. Automaton has 6275 states and 9394 transitions. Word has length 3150
[2024-12-02 07:05:15,956 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:05:15,956 INFO  L471      AbstractCegarLoop]: Abstraction has 6275 states and 9394 transitions.
[2024-12-02 07:05:15,957 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 693.0) internal successors, (2772), 4 states have internal predecessors, (2772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:15,957 INFO  L276                IsEmpty]: Start isEmpty. Operand 6275 states and 9394 transitions.
[2024-12-02 07:05:16,000 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3152
[2024-12-02 07:05:16,000 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:05:16,001 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:05:16,001 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-12-02 07:05:16,002 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:05:16,003 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:05:16,004 INFO  L85        PathProgramCache]: Analyzing trace with hash 1038098902, now seen corresponding path program 1 times
[2024-12-02 07:05:16,004 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:05:16,004 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979189150]
[2024-12-02 07:05:16,004 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:05:16,004 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:05:17,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:05:22,806 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked.
[2024-12-02 07:05:22,806 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:05:22,806 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979189150]
[2024-12-02 07:05:22,807 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979189150] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:05:22,807 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:05:22,807 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 07:05:22,807 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455262246]
[2024-12-02 07:05:22,807 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:05:22,808 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 07:05:22,808 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:05:22,809 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 07:05:22,809 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:05:22,810 INFO  L87              Difference]: Start difference. First operand 6275 states and 9394 transitions. Second operand  has 5 states, 5 states have (on average 555.0) internal successors, (2775), 5 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:22,902 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:05:22,902 INFO  L93              Difference]: Finished difference Result 11510 states and 17231 transitions.
[2024-12-02 07:05:22,903 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:05:22,903 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 555.0) internal successors, (2775), 5 states have internal predecessors, (2775), 0 states have call successors, (0), 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 3151
[2024-12-02 07:05:22,905 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:05:22,909 INFO  L225             Difference]: With dead ends: 11510
[2024-12-02 07:05:22,909 INFO  L226             Difference]: Without dead ends: 6279
[2024-12-02 07:05:22,912 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 07:05:22,913 INFO  L435           NwaCegarLoop]: 8192 mSDtfsCounter, 0 mSDsluCounter, 24560 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32752 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:05:22,913 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32752 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:05:22,917 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6279 states.
[2024-12-02 07:05:22,948 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6279 to 6277.
[2024-12-02 07:05:22,952 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6277 states, 6276 states have (on average 1.497131931166348) internal successors, (9396), 6276 states have internal predecessors, (9396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:22,957 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6277 states to 6277 states and 9396 transitions.
[2024-12-02 07:05:22,957 INFO  L78                 Accepts]: Start accepts. Automaton has 6277 states and 9396 transitions. Word has length 3151
[2024-12-02 07:05:22,958 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:05:22,959 INFO  L471      AbstractCegarLoop]: Abstraction has 6277 states and 9396 transitions.
[2024-12-02 07:05:22,959 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 555.0) internal successors, (2775), 5 states have internal predecessors, (2775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:22,959 INFO  L276                IsEmpty]: Start isEmpty. Operand 6277 states and 9396 transitions.
[2024-12-02 07:05:23,045 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3153
[2024-12-02 07:05:23,045 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:05:23,047 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:05:23,047 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-12-02 07:05:23,047 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:05:23,048 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:05:23,049 INFO  L85        PathProgramCache]: Analyzing trace with hash 957869873, now seen corresponding path program 1 times
[2024-12-02 07:05:23,049 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:05:23,049 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720826000]
[2024-12-02 07:05:23,049 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:05:23,049 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:05:24,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:05:28,902 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked.
[2024-12-02 07:05:28,902 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:05:28,902 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720826000]
[2024-12-02 07:05:28,903 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720826000] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:05:28,903 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:05:28,903 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:05:28,903 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697072898]
[2024-12-02 07:05:28,903 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:05:28,904 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:05:28,904 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:05:28,905 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:05:28,905 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:28,906 INFO  L87              Difference]: Start difference. First operand 6277 states and 9396 transitions. Second operand  has 4 states, 4 states have (on average 694.5) internal successors, (2778), 4 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:28,979 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:05:28,979 INFO  L93              Difference]: Finished difference Result 11518 states and 17241 transitions.
[2024-12-02 07:05:28,980 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:05:28,980 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 694.5) internal successors, (2778), 4 states have internal predecessors, (2778), 0 states have call successors, (0), 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 3152
[2024-12-02 07:05:28,982 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:05:28,986 INFO  L225             Difference]: With dead ends: 11518
[2024-12-02 07:05:28,986 INFO  L226             Difference]: Without dead ends: 6281
[2024-12-02 07:05:28,989 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:28,990 INFO  L435           NwaCegarLoop]: 8192 mSDtfsCounter, 0 mSDsluCounter, 16374 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24566 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:05:28,990 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24566 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:05:28,994 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6281 states.
[2024-12-02 07:05:29,031 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 6279.
[2024-12-02 07:05:29,036 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6279 states, 6278 states have (on average 1.4969735584581076) internal successors, (9398), 6278 states have internal predecessors, (9398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:29,044 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6279 states to 6279 states and 9398 transitions.
[2024-12-02 07:05:29,044 INFO  L78                 Accepts]: Start accepts. Automaton has 6279 states and 9398 transitions. Word has length 3152
[2024-12-02 07:05:29,046 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:05:29,046 INFO  L471      AbstractCegarLoop]: Abstraction has 6279 states and 9398 transitions.
[2024-12-02 07:05:29,047 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 694.5) internal successors, (2778), 4 states have internal predecessors, (2778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:29,047 INFO  L276                IsEmpty]: Start isEmpty. Operand 6279 states and 9398 transitions.
[2024-12-02 07:05:29,086 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3154
[2024-12-02 07:05:29,086 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:05:29,087 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:05:29,088 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-12-02 07:05:29,088 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:05:29,088 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:05:29,089 INFO  L85        PathProgramCache]: Analyzing trace with hash -1111487409, now seen corresponding path program 1 times
[2024-12-02 07:05:29,089 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:05:29,089 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790429620]
[2024-12-02 07:05:29,089 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:05:29,089 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:05:31,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:05:36,375 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 374 trivial. 0 not checked.
[2024-12-02 07:05:36,376 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:05:36,376 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790429620]
[2024-12-02 07:05:36,376 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790429620] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:05:36,376 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:05:36,376 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:05:36,376 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177978051]
[2024-12-02 07:05:36,376 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:05:36,378 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:05:36,378 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:05:36,380 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:05:36,380 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:36,381 INFO  L87              Difference]: Start difference. First operand 6279 states and 9398 transitions. Second operand  has 4 states, 4 states have (on average 695.25) internal successors, (2781), 4 states have internal predecessors, (2781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:36,454 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:05:36,454 INFO  L93              Difference]: Finished difference Result 11526 states and 17251 transitions.
[2024-12-02 07:05:36,455 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:05:36,455 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 695.25) internal successors, (2781), 4 states have internal predecessors, (2781), 0 states have call successors, (0), 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 3153
[2024-12-02 07:05:36,457 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:05:36,461 INFO  L225             Difference]: With dead ends: 11526
[2024-12-02 07:05:36,461 INFO  L226             Difference]: Without dead ends: 6283
[2024-12-02 07:05:36,463 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:36,464 INFO  L435           NwaCegarLoop]: 8192 mSDtfsCounter, 0 mSDsluCounter, 16374 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24566 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:05:36,464 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24566 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:05:36,468 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6283 states.
[2024-12-02 07:05:36,502 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6283 to 6281.
[2024-12-02 07:05:36,506 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6281 states, 6280 states have (on average 1.4968152866242037) internal successors, (9400), 6280 states have internal predecessors, (9400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:36,511 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6281 states to 6281 states and 9400 transitions.
[2024-12-02 07:05:36,511 INFO  L78                 Accepts]: Start accepts. Automaton has 6281 states and 9400 transitions. Word has length 3153
[2024-12-02 07:05:36,513 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:05:36,513 INFO  L471      AbstractCegarLoop]: Abstraction has 6281 states and 9400 transitions.
[2024-12-02 07:05:36,513 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 695.25) internal successors, (2781), 4 states have internal predecessors, (2781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:36,513 INFO  L276                IsEmpty]: Start isEmpty. Operand 6281 states and 9400 transitions.
[2024-12-02 07:05:36,553 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3155
[2024-12-02 07:05:36,553 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:05:36,554 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:05:36,554 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-12-02 07:05:36,554 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:05:36,555 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:05:36,556 INFO  L85        PathProgramCache]: Analyzing trace with hash 1612992824, now seen corresponding path program 1 times
[2024-12-02 07:05:36,556 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:05:36,556 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332313385]
[2024-12-02 07:05:36,557 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:05:36,557 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:05:38,563 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:05:43,006 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked.
[2024-12-02 07:05:43,007 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:05:43,007 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332313385]
[2024-12-02 07:05:43,007 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332313385] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:05:43,007 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:05:43,007 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:05:43,007 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371069315]
[2024-12-02 07:05:43,007 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:05:43,008 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:05:43,008 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:05:43,009 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:05:43,009 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:43,010 INFO  L87              Difference]: Start difference. First operand 6281 states and 9400 transitions. Second operand  has 4 states, 4 states have (on average 696.0) internal successors, (2784), 4 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:43,088 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:05:43,088 INFO  L93              Difference]: Finished difference Result 11534 states and 17261 transitions.
[2024-12-02 07:05:43,088 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:05:43,089 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 696.0) internal successors, (2784), 4 states have internal predecessors, (2784), 0 states have call successors, (0), 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 3154
[2024-12-02 07:05:43,090 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:05:43,094 INFO  L225             Difference]: With dead ends: 11534
[2024-12-02 07:05:43,094 INFO  L226             Difference]: Without dead ends: 6285
[2024-12-02 07:05:43,097 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:43,097 INFO  L435           NwaCegarLoop]: 8192 mSDtfsCounter, 0 mSDsluCounter, 16368 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24560 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:05:43,097 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24560 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:05:43,101 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6285 states.
[2024-12-02 07:05:43,132 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6285 to 6283.
[2024-12-02 07:05:43,136 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6283 states, 6282 states have (on average 1.4966571155682904) internal successors, (9402), 6282 states have internal predecessors, (9402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:43,141 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6283 states to 6283 states and 9402 transitions.
[2024-12-02 07:05:43,141 INFO  L78                 Accepts]: Start accepts. Automaton has 6283 states and 9402 transitions. Word has length 3154
[2024-12-02 07:05:43,143 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:05:43,143 INFO  L471      AbstractCegarLoop]: Abstraction has 6283 states and 9402 transitions.
[2024-12-02 07:05:43,143 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 696.0) internal successors, (2784), 4 states have internal predecessors, (2784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:43,143 INFO  L276                IsEmpty]: Start isEmpty. Operand 6283 states and 9402 transitions.
[2024-12-02 07:05:43,182 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3156
[2024-12-02 07:05:43,182 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:05:43,183 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:05:43,183 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-12-02 07:05:43,183 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:05:43,184 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:05:43,185 INFO  L85        PathProgramCache]: Analyzing trace with hash 834630088, now seen corresponding path program 1 times
[2024-12-02 07:05:43,185 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:05:43,185 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207354980]
[2024-12-02 07:05:43,185 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:05:43,185 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:05:45,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:05:49,855 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked.
[2024-12-02 07:05:49,855 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:05:49,855 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207354980]
[2024-12-02 07:05:49,855 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207354980] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:05:49,855 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:05:49,856 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:05:49,856 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699369265]
[2024-12-02 07:05:49,856 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:05:49,859 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:05:49,859 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:05:49,861 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:05:49,861 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:49,862 INFO  L87              Difference]: Start difference. First operand 6283 states and 9402 transitions. Second operand  has 4 states, 4 states have (on average 696.75) internal successors, (2787), 4 states have internal predecessors, (2787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:49,978 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:05:49,978 INFO  L93              Difference]: Finished difference Result 11548 states and 17279 transitions.
[2024-12-02 07:05:49,979 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:05:49,979 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 696.75) internal successors, (2787), 4 states have internal predecessors, (2787), 0 states have call successors, (0), 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 3155
[2024-12-02 07:05:49,982 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:05:49,987 INFO  L225             Difference]: With dead ends: 11548
[2024-12-02 07:05:49,987 INFO  L226             Difference]: Without dead ends: 6297
[2024-12-02 07:05:49,990 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:49,990 INFO  L435           NwaCegarLoop]: 8192 mSDtfsCounter, 3 mSDsluCounter, 16374 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 24566 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:05:49,990 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 24566 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:05:49,996 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6297 states.
[2024-12-02 07:05:50,046 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6297 to 6287.
[2024-12-02 07:05:50,050 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6287 states, 6286 states have (on average 1.4966592427616927) internal successors, (9408), 6286 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:50,058 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6287 states to 6287 states and 9408 transitions.
[2024-12-02 07:05:50,058 INFO  L78                 Accepts]: Start accepts. Automaton has 6287 states and 9408 transitions. Word has length 3155
[2024-12-02 07:05:50,060 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:05:50,060 INFO  L471      AbstractCegarLoop]: Abstraction has 6287 states and 9408 transitions.
[2024-12-02 07:05:50,060 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 696.75) internal successors, (2787), 4 states have internal predecessors, (2787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:50,060 INFO  L276                IsEmpty]: Start isEmpty. Operand 6287 states and 9408 transitions.
[2024-12-02 07:05:50,169 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3157
[2024-12-02 07:05:50,169 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:05:50,171 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:05:50,172 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-12-02 07:05:50,172 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:05:50,173 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:05:50,175 INFO  L85        PathProgramCache]: Analyzing trace with hash 191172671, now seen corresponding path program 1 times
[2024-12-02 07:05:50,175 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:05:50,175 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341062525]
[2024-12-02 07:05:50,176 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:05:50,176 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:05:52,833 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:05:57,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked.
[2024-12-02 07:05:57,115 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:05:57,115 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341062525]
[2024-12-02 07:05:57,115 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341062525] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:05:57,115 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 07:05:57,116 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 07:05:57,116 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678299051]
[2024-12-02 07:05:57,116 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:05:57,118 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 07:05:57,118 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:05:57,119 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 07:05:57,119 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:57,120 INFO  L87              Difference]: Start difference. First operand 6287 states and 9408 transitions. Second operand  has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:57,188 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:05:57,188 INFO  L93              Difference]: Finished difference Result 11562 states and 17301 transitions.
[2024-12-02 07:05:57,189 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 07:05:57,189 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 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 3156
[2024-12-02 07:05:57,191 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:05:57,195 INFO  L225             Difference]: With dead ends: 11562
[2024-12-02 07:05:57,195 INFO  L226             Difference]: Without dead ends: 6299
[2024-12-02 07:05:57,198 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 07:05:57,199 INFO  L435           NwaCegarLoop]: 8192 mSDtfsCounter, 4 mSDsluCounter, 16374 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24566 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:05:57,199 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 24566 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 07:05:57,204 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6299 states.
[2024-12-02 07:05:57,257 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6299 to 6293.
[2024-12-02 07:05:57,262 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4965034965034965) internal successors, (9416), 6292 states have internal predecessors, (9416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:57,267 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9416 transitions.
[2024-12-02 07:05:57,268 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9416 transitions. Word has length 3156
[2024-12-02 07:05:57,269 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:05:57,269 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9416 transitions.
[2024-12-02 07:05:57,270 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 698.0) internal successors, (2792), 4 states have internal predecessors, (2792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:05:57,270 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9416 transitions.
[2024-12-02 07:05:57,313 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3158
[2024-12-02 07:05:57,313 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:05:57,316 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:05:57,316 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-12-02 07:05:57,316 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:05:57,317 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:05:57,318 INFO  L85        PathProgramCache]: Analyzing trace with hash 867697050, now seen corresponding path program 1 times
[2024-12-02 07:05:57,318 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:05:57,318 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115974181]
[2024-12-02 07:05:57,319 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:05:57,319 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:05:59,652 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:06:04,731 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:06:04,732 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:06:04,732 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115974181]
[2024-12-02 07:06:04,732 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115974181] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:06:04,732 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918807608]
[2024-12-02 07:06:04,732 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:06:04,732 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:06:04,732 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:06:04,734 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:06:04,735 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 07:06:08,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:06:08,569 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13400 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 07:06:08,663 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:06:09,562 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:06:09,562 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:06:09,562 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [918807608] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:06:09,562 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:06:09,562 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:06:09,563 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914188678]
[2024-12-02 07:06:09,563 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:06:09,566 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:06:09,566 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:06:09,569 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:06:09,569 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:06:09,569 INFO  L87              Difference]: Start difference. First operand 6293 states and 9416 transitions. Second operand  has 6 states, 6 states have (on average 526.1666666666666) internal successors, (3157), 6 states have internal predecessors, (3157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:06:14,133 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:06:14,133 INFO  L93              Difference]: Finished difference Result 11512 states and 17224 transitions.
[2024-12-02 07:06:14,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:06:14,134 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 526.1666666666666) internal successors, (3157), 6 states have internal predecessors, (3157), 0 states have call successors, (0), 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 3157
[2024-12-02 07:06:14,135 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:06:14,140 INFO  L225             Difference]: With dead ends: 11512
[2024-12-02 07:06:14,140 INFO  L226             Difference]: Without dead ends: 6293
[2024-12-02 07:06:14,143 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3166 GetRequests, 3155 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2024-12-02 07:06:14,145 INFO  L435           NwaCegarLoop]: 6062 mSDtfsCounter, 10337 mSDsluCounter, 16233 mSDsCounter, 0 mSdLazyCounter, 8035 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10337 SdHoareTripleChecker+Valid, 22295 SdHoareTripleChecker+Invalid, 8037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2024-12-02 07:06:14,146 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10337 Valid, 22295 Invalid, 8037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8035 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2024-12-02 07:06:14,155 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6293 states.
[2024-12-02 07:06:14,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6293 to 6293.
[2024-12-02 07:06:14,234 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4963445645263826) internal successors, (9415), 6292 states have internal predecessors, (9415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:06:14,244 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9415 transitions.
[2024-12-02 07:06:14,244 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9415 transitions. Word has length 3157
[2024-12-02 07:06:14,245 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:06:14,245 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9415 transitions.
[2024-12-02 07:06:14,246 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 526.1666666666666) internal successors, (3157), 6 states have internal predecessors, (3157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:06:14,246 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9415 transitions.
[2024-12-02 07:06:14,346 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3159
[2024-12-02 07:06:14,346 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:06:14,347 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:06:14,380 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 07:06:14,548 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21
[2024-12-02 07:06:14,548 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:06:14,549 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:06:14,549 INFO  L85        PathProgramCache]: Analyzing trace with hash -72052077, now seen corresponding path program 1 times
[2024-12-02 07:06:14,550 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:06:14,550 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625116839]
[2024-12-02 07:06:14,550 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:06:14,550 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:06:16,742 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:06:21,547 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:06:21,547 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:06:21,547 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625116839]
[2024-12-02 07:06:21,547 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625116839] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:06:21,547 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712785297]
[2024-12-02 07:06:21,548 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:06:21,548 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:06:21,548 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:06:21,549 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:06:21,550 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 07:06:25,262 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:06:25,325 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13403 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 07:06:25,361 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:06:26,010 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:06:26,010 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:06:26,011 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712785297] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:06:26,011 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:06:26,011 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:06:26,011 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131627270]
[2024-12-02 07:06:26,012 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:06:26,014 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:06:26,014 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:06:26,016 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:06:26,017 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:06:26,017 INFO  L87              Difference]: Start difference. First operand 6293 states and 9415 transitions. Second operand  has 6 states, 6 states have (on average 526.3333333333334) internal successors, (3158), 6 states have internal predecessors, (3158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:06:30,159 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:06:30,160 INFO  L93              Difference]: Finished difference Result 11512 states and 17222 transitions.
[2024-12-02 07:06:30,160 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:06:30,160 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 526.3333333333334) internal successors, (3158), 6 states have internal predecessors, (3158), 0 states have call successors, (0), 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 3158
[2024-12-02 07:06:30,161 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:06:30,165 INFO  L225             Difference]: With dead ends: 11512
[2024-12-02 07:06:30,165 INFO  L226             Difference]: Without dead ends: 6293
[2024-12-02 07:06:30,168 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3167 GetRequests, 3156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156
[2024-12-02 07:06:30,169 INFO  L435           NwaCegarLoop]: 6062 mSDtfsCounter, 10325 mSDsluCounter, 16234 mSDsCounter, 0 mSdLazyCounter, 8031 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10325 SdHoareTripleChecker+Valid, 22296 SdHoareTripleChecker+Invalid, 8033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:06:30,169 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10325 Valid, 22296 Invalid, 8033 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8031 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2024-12-02 07:06:30,173 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6293 states.
[2024-12-02 07:06:30,206 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6293 to 6293.
[2024-12-02 07:06:30,210 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4961856325492688) internal successors, (9414), 6292 states have internal predecessors, (9414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:06:30,215 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9414 transitions.
[2024-12-02 07:06:30,215 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9414 transitions. Word has length 3158
[2024-12-02 07:06:30,216 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:06:30,216 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9414 transitions.
[2024-12-02 07:06:30,216 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 526.3333333333334) internal successors, (3158), 6 states have internal predecessors, (3158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:06:30,216 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9414 transitions.
[2024-12-02 07:06:30,255 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3160
[2024-12-02 07:06:30,255 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:06:30,256 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:06:30,296 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 07:06:30,456 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22
[2024-12-02 07:06:30,456 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:06:30,457 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:06:30,458 INFO  L85        PathProgramCache]: Analyzing trace with hash 32217032, now seen corresponding path program 1 times
[2024-12-02 07:06:30,458 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:06:30,458 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810545748]
[2024-12-02 07:06:30,458 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:06:30,458 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:06:32,699 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:06:37,918 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:06:37,918 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:06:37,918 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810545748]
[2024-12-02 07:06:37,919 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810545748] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:06:37,919 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729874444]
[2024-12-02 07:06:37,919 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:06:37,919 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:06:37,920 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:06:37,921 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:06:37,922 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 07:06:48,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:06:48,626 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13406 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:06:48,670 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:06:49,039 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked.
[2024-12-02 07:06:49,039 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:06:49,039 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729874444] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:06:49,039 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:06:49,040 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:06:49,040 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387737870]
[2024-12-02 07:06:49,040 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:06:49,043 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:06:49,043 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:06:49,045 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:06:49,045 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:06:49,046 INFO  L87              Difference]: Start difference. First operand 6293 states and 9414 transitions. Second operand  has 6 states, 6 states have (on average 492.3333333333333) internal successors, (2954), 6 states have internal predecessors, (2954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:06:52,133 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:06:52,133 INFO  L93              Difference]: Finished difference Result 16283 states and 24355 transitions.
[2024-12-02 07:06:52,134 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:06:52,134 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 492.3333333333333) internal successors, (2954), 6 states have internal predecessors, (2954), 0 states have call successors, (0), 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 3159
[2024-12-02 07:06:52,134 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:06:52,140 INFO  L225             Difference]: With dead ends: 16283
[2024-12-02 07:06:52,141 INFO  L226             Difference]: Without dead ends: 10632
[2024-12-02 07:06:52,145 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3167 GetRequests, 3157 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:06:52,145 INFO  L435           NwaCegarLoop]: 6599 mSDtfsCounter, 14779 mSDsluCounter, 20625 mSDsCounter, 0 mSdLazyCounter, 5990 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14779 SdHoareTripleChecker+Valid, 27224 SdHoareTripleChecker+Invalid, 6064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2024-12-02 07:06:52,145 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [14779 Valid, 27224 Invalid, 6064 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 5990 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2024-12-02 07:06:52,152 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10632 states.
[2024-12-02 07:06:52,197 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10632 to 6293.
[2024-12-02 07:06:52,201 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.496026700572155) internal successors, (9413), 6292 states have internal predecessors, (9413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:06:52,207 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9413 transitions.
[2024-12-02 07:06:52,207 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9413 transitions. Word has length 3159
[2024-12-02 07:06:52,207 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:06:52,207 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9413 transitions.
[2024-12-02 07:06:52,208 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 492.3333333333333) internal successors, (2954), 6 states have internal predecessors, (2954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:06:52,208 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9413 transitions.
[2024-12-02 07:06:52,247 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3161
[2024-12-02 07:06:52,247 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:06:52,248 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:06:52,289 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 07:06:52,448 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2024-12-02 07:06:52,448 INFO  L396      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:06:52,449 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:06:52,449 INFO  L85        PathProgramCache]: Analyzing trace with hash 513649943, now seen corresponding path program 1 times
[2024-12-02 07:06:52,449 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:06:52,449 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277999113]
[2024-12-02 07:06:52,450 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:06:52,450 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:06:54,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:06:59,110 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:06:59,110 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:06:59,110 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277999113]
[2024-12-02 07:06:59,110 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277999113] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:06:59,110 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073427069]
[2024-12-02 07:06:59,111 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:06:59,111 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:06:59,111 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:06:59,112 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:06:59,113 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 07:07:09,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:07:09,829 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13409 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:07:09,883 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:07:10,369 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked.
[2024-12-02 07:07:10,369 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:07:10,370 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073427069] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:07:10,370 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:07:10,370 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:07:10,370 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837538189]
[2024-12-02 07:07:10,371 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:07:10,374 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:07:10,374 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:07:10,377 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:07:10,377 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:07:10,378 INFO  L87              Difference]: Start difference. First operand 6293 states and 9413 transitions. Second operand  has 6 states, 6 states have (on average 493.1666666666667) internal successors, (2959), 6 states have internal predecessors, (2959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:07:15,260 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:07:15,260 INFO  L93              Difference]: Finished difference Result 16279 states and 24348 transitions.
[2024-12-02 07:07:15,260 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:07:15,261 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 493.1666666666667) internal successors, (2959), 6 states have internal predecessors, (2959), 0 states have call successors, (0), 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 3160
[2024-12-02 07:07:15,261 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:07:15,269 INFO  L225             Difference]: With dead ends: 16279
[2024-12-02 07:07:15,269 INFO  L226             Difference]: Without dead ends: 10636
[2024-12-02 07:07:15,274 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3168 GetRequests, 3158 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:07:15,274 INFO  L435           NwaCegarLoop]: 6600 mSDtfsCounter, 7589 mSDsluCounter, 26553 mSDsCounter, 0 mSdLazyCounter, 8043 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7589 SdHoareTripleChecker+Valid, 33153 SdHoareTripleChecker+Invalid, 8117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 8043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2024-12-02 07:07:15,274 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7589 Valid, 33153 Invalid, 8117 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 8043 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2024-12-02 07:07:15,283 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10636 states.
[2024-12-02 07:07:15,349 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10636 to 6293.
[2024-12-02 07:07:15,354 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4958677685950412) internal successors, (9412), 6292 states have internal predecessors, (9412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:07:15,361 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9412 transitions.
[2024-12-02 07:07:15,362 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9412 transitions. Word has length 3160
[2024-12-02 07:07:15,362 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:07:15,362 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9412 transitions.
[2024-12-02 07:07:15,363 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 493.1666666666667) internal successors, (2959), 6 states have internal predecessors, (2959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:07:15,363 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9412 transitions.
[2024-12-02 07:07:15,463 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3162
[2024-12-02 07:07:15,463 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:07:15,464 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:07:15,503 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 07:07:15,664 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24
[2024-12-02 07:07:15,664 INFO  L396      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:07:15,665 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:07:15,665 INFO  L85        PathProgramCache]: Analyzing trace with hash -1006539686, now seen corresponding path program 1 times
[2024-12-02 07:07:15,666 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:07:15,666 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146090007]
[2024-12-02 07:07:15,666 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:07:15,666 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:07:18,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:07:23,381 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:07:23,382 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:07:23,382 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146090007]
[2024-12-02 07:07:23,382 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146090007] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:07:23,382 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639395883]
[2024-12-02 07:07:23,382 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:07:23,382 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:07:23,382 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:07:23,384 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:07:23,385 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 07:07:34,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:07:34,276 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13412 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:07:34,303 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:07:34,665 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked.
[2024-12-02 07:07:34,665 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:07:34,665 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639395883] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:07:34,665 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:07:34,666 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:07:34,666 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833064538]
[2024-12-02 07:07:34,666 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:07:34,667 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:07:34,667 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:07:34,668 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:07:34,668 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:07:34,669 INFO  L87              Difference]: Start difference. First operand 6293 states and 9412 transitions. Second operand  has 6 states, 6 states have (on average 494.3333333333333) internal successors, (2966), 6 states have internal predecessors, (2966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:07:37,663 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:07:37,663 INFO  L93              Difference]: Finished difference Result 16275 states and 24341 transitions.
[2024-12-02 07:07:37,663 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:07:37,664 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 494.3333333333333) internal successors, (2966), 6 states have internal predecessors, (2966), 0 states have call successors, (0), 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 3161
[2024-12-02 07:07:37,664 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:07:37,671 INFO  L225             Difference]: With dead ends: 16275
[2024-12-02 07:07:37,671 INFO  L226             Difference]: Without dead ends: 10644
[2024-12-02 07:07:37,675 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3169 GetRequests, 3159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:07:37,676 INFO  L435           NwaCegarLoop]: 6601 mSDtfsCounter, 14787 mSDsluCounter, 20627 mSDsCounter, 0 mSdLazyCounter, 5986 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14787 SdHoareTripleChecker+Valid, 27228 SdHoareTripleChecker+Invalid, 6060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2024-12-02 07:07:37,676 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [14787 Valid, 27228 Invalid, 6060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 5986 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2024-12-02 07:07:37,682 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10644 states.
[2024-12-02 07:07:37,725 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10644 to 6293.
[2024-12-02 07:07:37,729 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4957088366179274) internal successors, (9411), 6292 states have internal predecessors, (9411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:07:37,734 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9411 transitions.
[2024-12-02 07:07:37,734 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9411 transitions. Word has length 3161
[2024-12-02 07:07:37,735 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:07:37,735 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9411 transitions.
[2024-12-02 07:07:37,735 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 494.3333333333333) internal successors, (2966), 6 states have internal predecessors, (2966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:07:37,735 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9411 transitions.
[2024-12-02 07:07:37,774 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3163
[2024-12-02 07:07:37,775 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:07:37,775 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:07:37,816 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-12-02 07:07:37,976 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25
[2024-12-02 07:07:37,976 INFO  L396      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:07:37,976 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:07:37,977 INFO  L85        PathProgramCache]: Analyzing trace with hash -1547539870, now seen corresponding path program 1 times
[2024-12-02 07:07:37,977 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:07:37,977 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50503845]
[2024-12-02 07:07:37,977 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:07:37,977 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:07:40,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:07:45,985 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:07:45,985 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:07:45,985 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50503845]
[2024-12-02 07:07:45,985 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50503845] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:07:45,985 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066654223]
[2024-12-02 07:07:45,986 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:07:45,986 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:07:45,986 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:07:45,988 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:07:45,990 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 07:07:59,198 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:07:59,264 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13415 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:07:59,291 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:07:59,601 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked.
[2024-12-02 07:07:59,601 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:07:59,602 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066654223] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:07:59,602 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:07:59,602 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:07:59,602 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956498449]
[2024-12-02 07:07:59,602 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:07:59,604 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:07:59,604 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:07:59,605 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:07:59,606 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:07:59,606 INFO  L87              Difference]: Start difference. First operand 6293 states and 9411 transitions. Second operand  has 6 states, 6 states have (on average 492.6666666666667) internal successors, (2956), 6 states have internal predecessors, (2956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:08:02,842 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:08:02,842 INFO  L93              Difference]: Finished difference Result 16287 states and 24355 transitions.
[2024-12-02 07:08:02,842 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:08:02,843 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 492.6666666666667) internal successors, (2956), 6 states have internal predecessors, (2956), 0 states have call successors, (0), 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 3162
[2024-12-02 07:08:02,843 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:08:02,849 INFO  L225             Difference]: With dead ends: 16287
[2024-12-02 07:08:02,849 INFO  L226             Difference]: Without dead ends: 10628
[2024-12-02 07:08:02,852 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3170 GetRequests, 3160 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:08:02,853 INFO  L435           NwaCegarLoop]: 6602 mSDtfsCounter, 14769 mSDsluCounter, 20628 mSDsCounter, 0 mSdLazyCounter, 5984 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14769 SdHoareTripleChecker+Valid, 27230 SdHoareTripleChecker+Invalid, 6058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:08:02,853 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [14769 Valid, 27230 Invalid, 6058 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 5984 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-12-02 07:08:02,859 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10628 states.
[2024-12-02 07:08:02,897 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10628 to 6293.
[2024-12-02 07:08:02,901 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4955499046408138) internal successors, (9410), 6292 states have internal predecessors, (9410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:08:02,907 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9410 transitions.
[2024-12-02 07:08:02,907 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9410 transitions. Word has length 3162
[2024-12-02 07:08:02,907 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:08:02,907 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9410 transitions.
[2024-12-02 07:08:02,908 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 492.6666666666667) internal successors, (2956), 6 states have internal predecessors, (2956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:08:02,908 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9410 transitions.
[2024-12-02 07:08:02,947 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3164
[2024-12-02 07:08:02,947 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:08:02,948 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:08:02,991 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-12-02 07:08:03,148 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26
[2024-12-02 07:08:03,149 INFO  L396      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:08:03,150 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:08:03,152 INFO  L85        PathProgramCache]: Analyzing trace with hash 1589990821, now seen corresponding path program 1 times
[2024-12-02 07:08:03,152 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:08:03,152 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97854948]
[2024-12-02 07:08:03,153 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:08:03,153 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:08:04,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:08:09,894 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:08:09,894 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:08:09,894 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97854948]
[2024-12-02 07:08:09,894 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97854948] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:08:09,894 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084966673]
[2024-12-02 07:08:09,894 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:08:09,895 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:08:09,895 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:08:09,896 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:08:09,897 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 07:08:22,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:08:22,554 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13418 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:08:22,581 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:08:22,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked.
[2024-12-02 07:08:22,987 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:08:22,987 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2084966673] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:08:22,987 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:08:22,989 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:08:22,989 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992099262]
[2024-12-02 07:08:22,989 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:08:22,991 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:08:22,991 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:08:22,993 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:08:22,993 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:08:22,994 INFO  L87              Difference]: Start difference. First operand 6293 states and 9410 transitions. Second operand  has 6 states, 6 states have (on average 495.3333333333333) internal successors, (2972), 6 states have internal predecessors, (2972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:08:26,164 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:08:26,164 INFO  L93              Difference]: Finished difference Result 16271 states and 24333 transitions.
[2024-12-02 07:08:26,164 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:08:26,164 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 495.3333333333333) internal successors, (2972), 6 states have internal predecessors, (2972), 0 states have call successors, (0), 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 3163
[2024-12-02 07:08:26,165 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:08:26,171 INFO  L225             Difference]: With dead ends: 16271
[2024-12-02 07:08:26,171 INFO  L226             Difference]: Without dead ends: 10648
[2024-12-02 07:08:26,175 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3171 GetRequests, 3161 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:08:26,175 INFO  L435           NwaCegarLoop]: 6603 mSDtfsCounter, 14783 mSDsluCounter, 20629 mSDsCounter, 0 mSdLazyCounter, 5982 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14783 SdHoareTripleChecker+Valid, 27232 SdHoareTripleChecker+Invalid, 6056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:08:26,175 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [14783 Valid, 27232 Invalid, 6056 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 5982 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-12-02 07:08:26,181 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10648 states.
[2024-12-02 07:08:26,219 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10648 to 6293.
[2024-12-02 07:08:26,223 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4953909726637) internal successors, (9409), 6292 states have internal predecessors, (9409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:08:26,228 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9409 transitions.
[2024-12-02 07:08:26,228 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9409 transitions. Word has length 3163
[2024-12-02 07:08:26,228 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:08:26,228 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9409 transitions.
[2024-12-02 07:08:26,229 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 495.3333333333333) internal successors, (2972), 6 states have internal predecessors, (2972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:08:26,229 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9409 transitions.
[2024-12-02 07:08:26,318 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3165
[2024-12-02 07:08:26,318 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:08:26,319 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:08:26,360 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-12-02 07:08:26,519 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27
[2024-12-02 07:08:26,520 INFO  L396      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:08:26,520 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:08:26,521 INFO  L85        PathProgramCache]: Analyzing trace with hash -1596904535, now seen corresponding path program 1 times
[2024-12-02 07:08:26,521 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:08:26,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569506680]
[2024-12-02 07:08:26,521 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:08:26,521 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:08:29,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:08:34,755 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:08:34,756 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:08:34,756 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569506680]
[2024-12-02 07:08:34,756 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569506680] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:08:34,756 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697508368]
[2024-12-02 07:08:34,757 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:08:34,757 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:08:34,757 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:08:34,759 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:08:34,761 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 07:08:48,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:08:48,234 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13421 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:08:48,262 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:08:48,677 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked.
[2024-12-02 07:08:48,677 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:08:48,677 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [697508368] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:08:48,677 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:08:48,677 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:08:48,678 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476942601]
[2024-12-02 07:08:48,678 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:08:48,679 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:08:48,679 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:08:48,680 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:08:48,680 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:08:48,681 INFO  L87              Difference]: Start difference. First operand 6293 states and 9409 transitions. Second operand  has 6 states, 6 states have (on average 496.1666666666667) internal successors, (2977), 6 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:08:53,483 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:08:53,483 INFO  L93              Difference]: Finished difference Result 16267 states and 24326 transitions.
[2024-12-02 07:08:53,484 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:08:53,484 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 496.1666666666667) internal successors, (2977), 6 states have internal predecessors, (2977), 0 states have call successors, (0), 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 3164
[2024-12-02 07:08:53,484 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:08:53,490 INFO  L225             Difference]: With dead ends: 16267
[2024-12-02 07:08:53,491 INFO  L226             Difference]: Without dead ends: 10652
[2024-12-02 07:08:53,494 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3172 GetRequests, 3162 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:08:53,494 INFO  L435           NwaCegarLoop]: 6604 mSDtfsCounter, 7591 mSDsluCounter, 26557 mSDsCounter, 0 mSdLazyCounter, 8035 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7591 SdHoareTripleChecker+Valid, 33161 SdHoareTripleChecker+Invalid, 8109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 8035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2024-12-02 07:08:53,495 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7591 Valid, 33161 Invalid, 8109 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 8035 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2024-12-02 07:08:53,501 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10652 states.
[2024-12-02 07:08:53,547 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10652 to 6293.
[2024-12-02 07:08:53,551 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4952320406865862) internal successors, (9408), 6292 states have internal predecessors, (9408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:08:53,557 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9408 transitions.
[2024-12-02 07:08:53,557 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9408 transitions. Word has length 3164
[2024-12-02 07:08:53,557 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:08:53,557 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9408 transitions.
[2024-12-02 07:08:53,558 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 496.1666666666667) internal successors, (2977), 6 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:08:53,558 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9408 transitions.
[2024-12-02 07:08:53,597 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3166
[2024-12-02 07:08:53,597 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:08:53,598 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:08:53,644 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-12-02 07:08:53,798 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28
[2024-12-02 07:08:53,798 INFO  L396      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:08:53,799 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:08:53,799 INFO  L85        PathProgramCache]: Analyzing trace with hash 1876557911, now seen corresponding path program 1 times
[2024-12-02 07:08:53,799 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:08:53,799 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171641857]
[2024-12-02 07:08:53,799 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:08:53,800 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:08:57,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:09:02,058 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:09:02,058 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:09:02,058 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171641857]
[2024-12-02 07:09:02,058 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171641857] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:09:02,058 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734447794]
[2024-12-02 07:09:02,059 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:09:02,059 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:09:02,059 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:09:02,061 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:09:02,062 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-12-02 07:09:16,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:09:16,110 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13424 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:09:16,152 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:09:16,701 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked.
[2024-12-02 07:09:16,702 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:09:16,702 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734447794] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:09:16,702 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:09:16,703 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:09:16,703 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64042255]
[2024-12-02 07:09:16,703 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:09:16,705 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:09:16,705 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:09:16,707 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:09:16,707 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:09:16,708 INFO  L87              Difference]: Start difference. First operand 6293 states and 9408 transitions. Second operand  has 6 states, 6 states have (on average 498.0) internal successors, (2988), 6 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:09:20,087 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:09:20,087 INFO  L93              Difference]: Finished difference Result 16259 states and 24313 transitions.
[2024-12-02 07:09:20,088 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:09:20,088 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 498.0) internal successors, (2988), 6 states have internal predecessors, (2988), 0 states have call successors, (0), 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 3165
[2024-12-02 07:09:20,089 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:09:20,096 INFO  L225             Difference]: With dead ends: 16259
[2024-12-02 07:09:20,096 INFO  L226             Difference]: Without dead ends: 10664
[2024-12-02 07:09:20,100 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3173 GetRequests, 3163 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:09:20,101 INFO  L435           NwaCegarLoop]: 6605 mSDtfsCounter, 14795 mSDsluCounter, 20631 mSDsCounter, 0 mSdLazyCounter, 5978 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14795 SdHoareTripleChecker+Valid, 27236 SdHoareTripleChecker+Invalid, 6052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2024-12-02 07:09:20,101 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [14795 Valid, 27236 Invalid, 6052 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 5978 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2024-12-02 07:09:20,110 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10664 states.
[2024-12-02 07:09:20,159 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10664 to 6293.
[2024-12-02 07:09:20,164 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4950731087094724) internal successors, (9407), 6292 states have internal predecessors, (9407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:09:20,170 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9407 transitions.
[2024-12-02 07:09:20,170 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9407 transitions. Word has length 3165
[2024-12-02 07:09:20,170 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:09:20,170 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9407 transitions.
[2024-12-02 07:09:20,171 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 498.0) internal successors, (2988), 6 states have internal predecessors, (2988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:09:20,171 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9407 transitions.
[2024-12-02 07:09:20,211 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3167
[2024-12-02 07:09:20,211 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:09:20,212 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:09:20,258 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-12-02 07:09:20,412 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:09:20,412 INFO  L396      AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:09:20,413 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:09:20,413 INFO  L85        PathProgramCache]: Analyzing trace with hash 751066694, now seen corresponding path program 1 times
[2024-12-02 07:09:20,413 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:09:20,413 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936031254]
[2024-12-02 07:09:20,414 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:09:20,414 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:09:22,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:09:28,979 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:09:28,979 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:09:28,979 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936031254]
[2024-12-02 07:09:28,979 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936031254] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:09:28,979 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251014966]
[2024-12-02 07:09:28,979 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:09:28,979 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:09:28,980 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:09:28,981 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:09:28,982 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-12-02 07:09:41,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:09:41,624 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13427 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:09:41,650 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:09:42,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked.
[2024-12-02 07:09:42,043 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:09:42,043 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251014966] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:09:42,043 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:09:42,043 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:09:42,044 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265390090]
[2024-12-02 07:09:42,044 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:09:42,045 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:09:42,045 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:09:42,046 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:09:42,046 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:09:42,046 INFO  L87              Difference]: Start difference. First operand 6293 states and 9407 transitions. Second operand  has 6 states, 6 states have (on average 497.3333333333333) internal successors, (2984), 6 states have internal predecessors, (2984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:09:46,968 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:09:46,968 INFO  L93              Difference]: Finished difference Result 16263 states and 24317 transitions.
[2024-12-02 07:09:46,969 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:09:46,969 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 497.3333333333333) internal successors, (2984), 6 states have internal predecessors, (2984), 0 states have call successors, (0), 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 3166
[2024-12-02 07:09:46,969 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:09:46,975 INFO  L225             Difference]: With dead ends: 16263
[2024-12-02 07:09:46,976 INFO  L226             Difference]: Without dead ends: 10656
[2024-12-02 07:09:46,979 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3174 GetRequests, 3164 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:09:46,980 INFO  L435           NwaCegarLoop]: 6606 mSDtfsCounter, 7590 mSDsluCounter, 26559 mSDsCounter, 0 mSdLazyCounter, 8031 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7590 SdHoareTripleChecker+Valid, 33165 SdHoareTripleChecker+Invalid, 8105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 8031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2024-12-02 07:09:46,980 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7590 Valid, 33165 Invalid, 8105 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 8031 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2024-12-02 07:09:46,986 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10656 states.
[2024-12-02 07:09:47,030 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10656 to 6293.
[2024-12-02 07:09:47,035 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4949141767323586) internal successors, (9406), 6292 states have internal predecessors, (9406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:09:47,040 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9406 transitions.
[2024-12-02 07:09:47,040 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9406 transitions. Word has length 3166
[2024-12-02 07:09:47,040 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:09:47,040 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9406 transitions.
[2024-12-02 07:09:47,041 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 497.3333333333333) internal successors, (2984), 6 states have internal predecessors, (2984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:09:47,041 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9406 transitions.
[2024-12-02 07:09:47,080 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3168
[2024-12-02 07:09:47,080 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:09:47,081 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:09:47,126 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-12-02 07:09:47,281 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:09:47,282 INFO  L396      AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:09:47,282 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:09:47,283 INFO  L85        PathProgramCache]: Analyzing trace with hash -271953278, now seen corresponding path program 1 times
[2024-12-02 07:09:47,283 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:09:47,283 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847448430]
[2024-12-02 07:09:47,284 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:09:47,284 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:09:49,736 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:09:55,804 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:09:55,804 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:09:55,804 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847448430]
[2024-12-02 07:09:55,804 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847448430] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:09:55,804 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470512156]
[2024-12-02 07:09:55,805 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:09:55,805 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:09:55,805 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:09:55,807 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:09:55,808 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-12-02 07:10:09,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:10:09,894 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13430 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:10:09,924 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:10:10,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 214 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked.
[2024-12-02 07:10:10,368 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:10:10,368 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470512156] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:10:10,369 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:10:10,369 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:10:10,369 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377648192]
[2024-12-02 07:10:10,369 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:10:10,371 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:10:10,371 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:10:10,373 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:10:10,373 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:10:10,374 INFO  L87              Difference]: Start difference. First operand 6293 states and 9406 transitions. Second operand  has 6 states, 6 states have (on average 499.6666666666667) internal successors, (2998), 6 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:10:14,863 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:10:14,863 INFO  L93              Difference]: Finished difference Result 16251 states and 24299 transitions.
[2024-12-02 07:10:14,863 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:10:14,864 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 499.6666666666667) internal successors, (2998), 6 states have internal predecessors, (2998), 0 states have call successors, (0), 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 3167
[2024-12-02 07:10:14,864 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:10:14,871 INFO  L225             Difference]: With dead ends: 16251
[2024-12-02 07:10:14,871 INFO  L226             Difference]: Without dead ends: 10672
[2024-12-02 07:10:14,875 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3175 GetRequests, 3165 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:10:14,875 INFO  L435           NwaCegarLoop]: 6607 mSDtfsCounter, 7597 mSDsluCounter, 26560 mSDsCounter, 0 mSdLazyCounter, 8029 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7597 SdHoareTripleChecker+Valid, 33167 SdHoareTripleChecker+Invalid, 8103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 8029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2024-12-02 07:10:14,876 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7597 Valid, 33167 Invalid, 8103 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 8029 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2024-12-02 07:10:14,887 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10672 states.
[2024-12-02 07:10:14,938 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10672 to 6293.
[2024-12-02 07:10:14,944 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4947552447552448) internal successors, (9405), 6292 states have internal predecessors, (9405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:10:14,949 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9405 transitions.
[2024-12-02 07:10:14,950 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9405 transitions. Word has length 3167
[2024-12-02 07:10:14,950 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:10:14,950 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9405 transitions.
[2024-12-02 07:10:14,951 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 499.6666666666667) internal successors, (2998), 6 states have internal predecessors, (2998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:10:14,951 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9405 transitions.
[2024-12-02 07:10:14,992 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3169
[2024-12-02 07:10:14,992 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:10:14,993 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:10:15,056 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2024-12-02 07:10:15,193 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:10:15,193 INFO  L396      AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:10:15,194 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:10:15,194 INFO  L85        PathProgramCache]: Analyzing trace with hash 1649839583, now seen corresponding path program 1 times
[2024-12-02 07:10:15,194 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:10:15,195 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624307512]
[2024-12-02 07:10:15,195 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:10:15,195 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:10:17,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:10:22,941 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:10:22,941 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:10:22,941 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624307512]
[2024-12-02 07:10:22,941 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624307512] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:10:22,941 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131689091]
[2024-12-02 07:10:22,942 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:10:22,942 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:10:22,942 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:10:22,943 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:10:22,944 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-12-02 07:10:33,743 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:10:33,813 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13433 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:10:33,840 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:10:34,316 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked.
[2024-12-02 07:10:34,316 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:10:34,317 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131689091] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:10:34,317 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:10:34,317 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:10:34,317 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303896782]
[2024-12-02 07:10:34,317 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:10:34,320 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:10:34,320 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:10:34,322 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:10:34,322 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:10:34,322 INFO  L87              Difference]: Start difference. First operand 6293 states and 9405 transitions. Second operand  has 6 states, 6 states have (on average 500.5) internal successors, (3003), 6 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:10:39,298 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:10:39,298 INFO  L93              Difference]: Finished difference Result 16247 states and 24292 transitions.
[2024-12-02 07:10:39,299 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:10:39,299 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 500.5) internal successors, (3003), 6 states have internal predecessors, (3003), 0 states have call successors, (0), 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 3168
[2024-12-02 07:10:39,300 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:10:39,307 INFO  L225             Difference]: With dead ends: 16247
[2024-12-02 07:10:39,307 INFO  L226             Difference]: Without dead ends: 10676
[2024-12-02 07:10:39,312 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3176 GetRequests, 3166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:10:39,313 INFO  L435           NwaCegarLoop]: 6608 mSDtfsCounter, 7597 mSDsluCounter, 26561 mSDsCounter, 0 mSdLazyCounter, 8027 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7597 SdHoareTripleChecker+Valid, 33169 SdHoareTripleChecker+Invalid, 8101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 8027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2024-12-02 07:10:39,313 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7597 Valid, 33169 Invalid, 8101 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 8027 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2024-12-02 07:10:39,322 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10676 states.
[2024-12-02 07:10:39,392 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10676 to 6293.
[2024-12-02 07:10:39,397 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.494596312778131) internal successors, (9404), 6292 states have internal predecessors, (9404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:10:39,406 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9404 transitions.
[2024-12-02 07:10:39,406 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9404 transitions. Word has length 3168
[2024-12-02 07:10:39,407 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:10:39,407 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9404 transitions.
[2024-12-02 07:10:39,407 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 500.5) internal successors, (3003), 6 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:10:39,407 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9404 transitions.
[2024-12-02 07:10:39,509 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3170
[2024-12-02 07:10:39,509 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:10:39,510 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:10:39,561 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-12-02 07:10:39,711 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:10:39,711 INFO  L396      AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:10:39,711 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:10:39,712 INFO  L85        PathProgramCache]: Analyzing trace with hash 853891540, now seen corresponding path program 1 times
[2024-12-02 07:10:39,712 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:10:39,712 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800658831]
[2024-12-02 07:10:39,712 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:10:39,713 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:10:42,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:10:47,287 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:10:47,287 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:10:47,287 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800658831]
[2024-12-02 07:10:47,287 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800658831] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:10:47,287 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391577795]
[2024-12-02 07:10:47,288 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:10:47,288 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:10:47,288 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:10:47,290 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:10:47,291 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-12-02 07:10:59,719 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:10:59,796 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13436 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:10:59,843 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:11:00,437 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked.
[2024-12-02 07:11:00,437 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:11:00,437 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [391577795] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:11:00,437 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:11:00,437 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:11:00,437 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196907226]
[2024-12-02 07:11:00,437 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:11:00,439 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:11:00,439 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:11:00,441 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:11:00,441 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:11:00,442 INFO  L87              Difference]: Start difference. First operand 6293 states and 9404 transitions. Second operand  has 6 states, 6 states have (on average 501.6666666666667) internal successors, (3010), 6 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:11:03,732 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:11:03,732 INFO  L93              Difference]: Finished difference Result 16243 states and 24285 transitions.
[2024-12-02 07:11:03,733 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:11:03,733 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 501.6666666666667) internal successors, (3010), 6 states have internal predecessors, (3010), 0 states have call successors, (0), 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 3169
[2024-12-02 07:11:03,734 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:11:03,741 INFO  L225             Difference]: With dead ends: 16243
[2024-12-02 07:11:03,741 INFO  L226             Difference]: Without dead ends: 10684
[2024-12-02 07:11:03,746 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3177 GetRequests, 3167 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:11:03,746 INFO  L435           NwaCegarLoop]: 6609 mSDtfsCounter, 14803 mSDsluCounter, 20635 mSDsCounter, 0 mSdLazyCounter, 5970 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14803 SdHoareTripleChecker+Valid, 27244 SdHoareTripleChecker+Invalid, 6044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time
[2024-12-02 07:11:03,746 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [14803 Valid, 27244 Invalid, 6044 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 5970 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time]
[2024-12-02 07:11:03,755 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10684 states.
[2024-12-02 07:11:03,822 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 6293.
[2024-12-02 07:11:03,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4944373808010172) internal successors, (9403), 6292 states have internal predecessors, (9403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:11:03,836 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9403 transitions.
[2024-12-02 07:11:03,836 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9403 transitions. Word has length 3169
[2024-12-02 07:11:03,836 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:11:03,836 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9403 transitions.
[2024-12-02 07:11:03,837 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 501.6666666666667) internal successors, (3010), 6 states have internal predecessors, (3010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:11:03,837 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9403 transitions.
[2024-12-02 07:11:03,938 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3171
[2024-12-02 07:11:03,938 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:11:03,939 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 07:11:03,988 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-12-02 07:11:04,139 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:11:04,139 INFO  L396      AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:11:04,140 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:11:04,141 INFO  L85        PathProgramCache]: Analyzing trace with hash 1406565098, now seen corresponding path program 1 times
[2024-12-02 07:11:04,141 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:11:04,141 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326052319]
[2024-12-02 07:11:04,141 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:11:04,141 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:11:07,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:11:12,243 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:11:12,243 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:11:12,243 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326052319]
[2024-12-02 07:11:12,244 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326052319] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:11:12,244 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660113359]
[2024-12-02 07:11:12,244 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:11:12,244 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:11:12,244 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:11:12,246 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:11:12,247 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-12-02 07:11:27,118 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:11:27,189 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13439 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:11:27,236 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:11:27,750 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked.
[2024-12-02 07:11:27,751 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:11:27,751 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [660113359] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:11:27,751 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:11:27,751 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:11:27,751 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804718984]
[2024-12-02 07:11:27,751 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:11:27,753 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:11:27,753 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:11:27,755 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:11:27,755 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:11:27,756 INFO  L87              Difference]: Start difference. First operand 6293 states and 9403 transitions. Second operand  has 6 states, 6 states have (on average 500.0) internal successors, (3000), 6 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:11:32,471 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:11:32,472 INFO  L93              Difference]: Finished difference Result 16255 states and 24299 transitions.
[2024-12-02 07:11:32,472 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:11:32,472 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 500.0) internal successors, (3000), 6 states have internal predecessors, (3000), 0 states have call successors, (0), 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 3170
[2024-12-02 07:11:32,473 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:11:32,479 INFO  L225             Difference]: With dead ends: 16255
[2024-12-02 07:11:32,479 INFO  L226             Difference]: Without dead ends: 10668
[2024-12-02 07:11:32,484 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3178 GetRequests, 3168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:11:32,484 INFO  L435           NwaCegarLoop]: 6610 mSDtfsCounter, 7592 mSDsluCounter, 26563 mSDsCounter, 0 mSdLazyCounter, 8023 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7592 SdHoareTripleChecker+Valid, 33173 SdHoareTripleChecker+Invalid, 8097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 8023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2024-12-02 07:11:32,484 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7592 Valid, 33173 Invalid, 8097 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 8023 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2024-12-02 07:11:32,491 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10668 states.
[2024-12-02 07:11:32,556 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10668 to 6293.
[2024-12-02 07:11:32,561 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4942784488239034) internal successors, (9402), 6292 states have internal predecessors, (9402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:11:32,570 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9402 transitions.
[2024-12-02 07:11:32,570 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9402 transitions. Word has length 3170
[2024-12-02 07:11:32,570 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:11:32,570 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9402 transitions.
[2024-12-02 07:11:32,571 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 500.0) internal successors, (3000), 6 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:11:32,571 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9402 transitions.
[2024-12-02 07:11:32,674 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3172
[2024-12-02 07:11:32,674 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:11:32,675 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:11:32,734 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-12-02 07:11:32,875 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:11:32,876 INFO  L396      AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:11:32,876 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:11:32,877 INFO  L85        PathProgramCache]: Analyzing trace with hash 486370911, now seen corresponding path program 1 times
[2024-12-02 07:11:32,877 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:11:32,877 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000632408]
[2024-12-02 07:11:32,877 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:11:32,877 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:11:35,213 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:11:39,672 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:11:39,672 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:11:39,673 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000632408]
[2024-12-02 07:11:39,673 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000632408] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:11:39,673 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593876799]
[2024-12-02 07:11:39,673 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:11:39,673 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:11:39,673 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:11:39,675 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:11:39,676 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-12-02 07:11:51,465 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:11:51,540 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13442 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:11:51,569 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:11:52,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 228 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked.
[2024-12-02 07:11:52,115 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:11:52,115 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [593876799] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:11:52,115 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:11:52,115 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:11:52,115 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076998336]
[2024-12-02 07:11:52,115 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:11:52,117 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:11:52,117 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:11:52,119 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:11:52,119 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:11:52,120 INFO  L87              Difference]: Start difference. First operand 6293 states and 9402 transitions. Second operand  has 6 states, 6 states have (on average 502.6666666666667) internal successors, (3016), 6 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:11:56,567 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:11:56,567 INFO  L93              Difference]: Finished difference Result 16239 states and 24277 transitions.
[2024-12-02 07:11:56,567 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:11:56,568 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 502.6666666666667) internal successors, (3016), 6 states have internal predecessors, (3016), 0 states have call successors, (0), 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 3171
[2024-12-02 07:11:56,568 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:11:56,575 INFO  L225             Difference]: With dead ends: 16239
[2024-12-02 07:11:56,575 INFO  L226             Difference]: Without dead ends: 10688
[2024-12-02 07:11:56,579 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3179 GetRequests, 3169 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:11:56,580 INFO  L435           NwaCegarLoop]: 6611 mSDtfsCounter, 7599 mSDsluCounter, 26564 mSDsCounter, 0 mSdLazyCounter, 8021 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7599 SdHoareTripleChecker+Valid, 33175 SdHoareTripleChecker+Invalid, 8095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 8021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-12-02 07:11:56,580 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7599 Valid, 33175 Invalid, 8095 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 8021 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2024-12-02 07:11:56,587 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10688 states.
[2024-12-02 07:11:56,635 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 6293.
[2024-12-02 07:11:56,640 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4941195168467896) internal successors, (9401), 6292 states have internal predecessors, (9401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:11:56,645 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9401 transitions.
[2024-12-02 07:11:56,645 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9401 transitions. Word has length 3171
[2024-12-02 07:11:56,646 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:11:56,646 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9401 transitions.
[2024-12-02 07:11:56,646 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 502.6666666666667) internal successors, (3016), 6 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:11:56,646 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9401 transitions.
[2024-12-02 07:11:56,688 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3173
[2024-12-02 07:11:56,688 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:11:56,689 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:11:56,743 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-12-02 07:11:56,889 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:11:56,889 INFO  L396      AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:11:56,890 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:11:56,890 INFO  L85        PathProgramCache]: Analyzing trace with hash -2122307087, now seen corresponding path program 1 times
[2024-12-02 07:11:56,890 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:11:56,890 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644285411]
[2024-12-02 07:11:56,890 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:11:56,890 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:11:59,352 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:12:03,925 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:12:03,926 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:12:03,926 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644285411]
[2024-12-02 07:12:03,926 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644285411] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:12:03,926 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003236920]
[2024-12-02 07:12:03,927 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:12:03,927 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:12:03,927 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:12:03,928 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:12:03,929 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-12-02 07:12:16,520 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:12:16,596 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13445 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:12:16,626 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:12:17,150 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 236 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked.
[2024-12-02 07:12:17,150 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:12:17,151 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003236920] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:12:17,151 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:12:17,151 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:12:17,151 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114708256]
[2024-12-02 07:12:17,152 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:12:17,153 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:12:17,153 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:12:17,154 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:12:17,154 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:12:17,155 INFO  L87              Difference]: Start difference. First operand 6293 states and 9401 transitions. Second operand  has 6 states, 6 states have (on average 504.1666666666667) internal successors, (3025), 6 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:12:20,279 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:12:20,280 INFO  L93              Difference]: Finished difference Result 16231 states and 24264 transitions.
[2024-12-02 07:12:20,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:12:20,281 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 504.1666666666667) internal successors, (3025), 6 states have internal predecessors, (3025), 0 states have call successors, (0), 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 3172
[2024-12-02 07:12:20,281 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:12:20,288 INFO  L225             Difference]: With dead ends: 16231
[2024-12-02 07:12:20,288 INFO  L226             Difference]: Without dead ends: 10696
[2024-12-02 07:12:20,293 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3180 GetRequests, 3170 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:12:20,293 INFO  L435           NwaCegarLoop]: 6612 mSDtfsCounter, 14803 mSDsluCounter, 20638 mSDsCounter, 0 mSdLazyCounter, 5964 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14803 SdHoareTripleChecker+Valid, 27250 SdHoareTripleChecker+Invalid, 6038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2024-12-02 07:12:20,293 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [14803 Valid, 27250 Invalid, 6038 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 5964 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2024-12-02 07:12:20,300 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10696 states.
[2024-12-02 07:12:20,347 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10696 to 6293.
[2024-12-02 07:12:20,352 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4939605848696758) internal successors, (9400), 6292 states have internal predecessors, (9400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:12:20,358 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9400 transitions.
[2024-12-02 07:12:20,358 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9400 transitions. Word has length 3172
[2024-12-02 07:12:20,358 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:12:20,358 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9400 transitions.
[2024-12-02 07:12:20,359 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 504.1666666666667) internal successors, (3025), 6 states have internal predecessors, (3025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:12:20,359 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9400 transitions.
[2024-12-02 07:12:20,460 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3174
[2024-12-02 07:12:20,460 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:12:20,461 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:12:20,523 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-12-02 07:12:20,661 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:12:20,661 INFO  L396      AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:12:20,662 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:12:20,663 INFO  L85        PathProgramCache]: Analyzing trace with hash -268533757, now seen corresponding path program 1 times
[2024-12-02 07:12:20,663 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:12:20,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544195099]
[2024-12-02 07:12:20,663 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:12:20,663 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:12:23,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:12:29,417 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:12:29,417 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:12:29,418 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544195099]
[2024-12-02 07:12:29,418 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544195099] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:12:29,418 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368371090]
[2024-12-02 07:12:29,418 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:12:29,418 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:12:29,419 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:12:29,420 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:12:29,421 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-12-02 07:12:42,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:12:42,343 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13448 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:12:42,373 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:12:42,943 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked.
[2024-12-02 07:12:42,943 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:12:42,943 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368371090] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:12:42,944 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:12:42,944 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:12:42,944 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357965669]
[2024-12-02 07:12:42,944 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:12:42,945 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:12:42,945 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:12:42,947 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:12:42,947 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:12:42,947 INFO  L87              Difference]: Start difference. First operand 6293 states and 9400 transitions. Second operand  has 6 states, 6 states have (on average 505.3333333333333) internal successors, (3032), 6 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:12:47,496 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:12:47,496 INFO  L93              Difference]: Finished difference Result 16227 states and 24257 transitions.
[2024-12-02 07:12:47,496 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:12:47,496 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 505.3333333333333) internal successors, (3032), 6 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3173
[2024-12-02 07:12:47,497 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:12:47,502 INFO  L225             Difference]: With dead ends: 16227
[2024-12-02 07:12:47,502 INFO  L226             Difference]: Without dead ends: 10704
[2024-12-02 07:12:47,505 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3181 GetRequests, 3171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:12:47,505 INFO  L435           NwaCegarLoop]: 6613 mSDtfsCounter, 7605 mSDsluCounter, 26566 mSDsCounter, 0 mSdLazyCounter, 8017 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7605 SdHoareTripleChecker+Valid, 33179 SdHoareTripleChecker+Invalid, 8091 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 8017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2024-12-02 07:12:47,505 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7605 Valid, 33179 Invalid, 8091 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 8017 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2024-12-02 07:12:47,511 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10704 states.
[2024-12-02 07:12:47,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10704 to 6293.
[2024-12-02 07:12:47,558 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.493801652892562) internal successors, (9399), 6292 states have internal predecessors, (9399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:12:47,563 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9399 transitions.
[2024-12-02 07:12:47,564 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9399 transitions. Word has length 3173
[2024-12-02 07:12:47,564 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:12:47,564 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9399 transitions.
[2024-12-02 07:12:47,564 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 505.3333333333333) internal successors, (3032), 6 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:12:47,564 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9399 transitions.
[2024-12-02 07:12:47,606 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3175
[2024-12-02 07:12:47,606 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:12:47,607 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:12:47,661 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-12-02 07:12:47,807 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:12:47,807 INFO  L396      AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:12:47,808 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:12:47,808 INFO  L85        PathProgramCache]: Analyzing trace with hash -44191908, now seen corresponding path program 1 times
[2024-12-02 07:12:47,808 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:12:47,808 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713862619]
[2024-12-02 07:12:47,809 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:12:47,809 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:12:50,279 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:12:56,087 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:12:56,087 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:12:56,088 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713862619]
[2024-12-02 07:12:56,088 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713862619] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:12:56,088 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167604054]
[2024-12-02 07:12:56,089 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:12:56,089 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:12:56,089 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:12:56,091 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:12:56,092 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-12-02 07:13:09,006 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:13:09,081 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13451 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:13:09,111 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:13:09,694 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 254 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked.
[2024-12-02 07:13:09,694 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:13:09,694 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [167604054] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:13:09,694 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:13:09,695 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:13:09,695 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261527797]
[2024-12-02 07:13:09,695 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:13:09,697 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:13:09,697 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:13:09,699 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:13:09,699 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:13:09,699 INFO  L87              Difference]: Start difference. First operand 6293 states and 9399 transitions. Second operand  has 6 states, 6 states have (on average 507.5) internal successors, (3045), 6 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:13:14,386 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:13:14,386 INFO  L93              Difference]: Finished difference Result 16215 states and 24238 transitions.
[2024-12-02 07:13:14,386 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:13:14,387 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 507.5) internal successors, (3045), 6 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3174
[2024-12-02 07:13:14,387 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:13:14,394 INFO  L225             Difference]: With dead ends: 16215
[2024-12-02 07:13:14,394 INFO  L226             Difference]: Without dead ends: 10716
[2024-12-02 07:13:14,398 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3182 GetRequests, 3172 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:13:14,399 INFO  L435           NwaCegarLoop]: 6614 mSDtfsCounter, 7609 mSDsluCounter, 26567 mSDsCounter, 0 mSdLazyCounter, 8015 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7609 SdHoareTripleChecker+Valid, 33181 SdHoareTripleChecker+Invalid, 8089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 8015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2024-12-02 07:13:14,399 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [7609 Valid, 33181 Invalid, 8089 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 8015 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2024-12-02 07:13:14,406 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10716 states.
[2024-12-02 07:13:14,456 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10716 to 6293.
[2024-12-02 07:13:14,461 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4936427209154481) internal successors, (9398), 6292 states have internal predecessors, (9398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:13:14,466 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9398 transitions.
[2024-12-02 07:13:14,467 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9398 transitions. Word has length 3174
[2024-12-02 07:13:14,467 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:13:14,467 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9398 transitions.
[2024-12-02 07:13:14,468 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 507.5) internal successors, (3045), 6 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:13:14,468 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9398 transitions.
[2024-12-02 07:13:14,558 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3176
[2024-12-02 07:13:14,558 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:13:14,559 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:13:14,614 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2024-12-02 07:13:14,759 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:13:14,759 INFO  L396      AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:13:14,760 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:13:14,760 INFO  L85        PathProgramCache]: Analyzing trace with hash -58878407, now seen corresponding path program 1 times
[2024-12-02 07:13:14,760 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:13:14,760 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867965168]
[2024-12-02 07:13:14,761 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:13:14,761 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:13:17,099 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:13:21,880 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:13:21,880 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:13:21,880 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867965168]
[2024-12-02 07:13:21,880 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867965168] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:13:21,880 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793194816]
[2024-12-02 07:13:21,881 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:13:21,881 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:13:21,881 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:13:21,882 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:13:21,883 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-12-02 07:13:35,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:13:35,492 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13454 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 07:13:35,594 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:13:36,187 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked.
[2024-12-02 07:13:36,187 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:13:36,187 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [793194816] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:13:36,187 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:13:36,188 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11
[2024-12-02 07:13:36,188 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905732438]
[2024-12-02 07:13:36,188 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:13:36,189 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 07:13:36,189 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:13:36,190 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 07:13:36,190 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:13:36,191 INFO  L87              Difference]: Start difference. First operand 6293 states and 9398 transitions. Second operand  has 6 states, 6 states have (on average 506.5) internal successors, (3039), 6 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:13:39,567 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:13:39,567 INFO  L93              Difference]: Finished difference Result 16223 states and 24248 transitions.
[2024-12-02 07:13:39,567 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 07:13:39,568 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 506.5) internal successors, (3039), 6 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3175
[2024-12-02 07:13:39,568 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:13:39,575 INFO  L225             Difference]: With dead ends: 16223
[2024-12-02 07:13:39,575 INFO  L226             Difference]: Without dead ends: 10708
[2024-12-02 07:13:39,579 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3183 GetRequests, 3173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2024-12-02 07:13:39,579 INFO  L435           NwaCegarLoop]: 6615 mSDtfsCounter, 14809 mSDsluCounter, 20641 mSDsCounter, 0 mSdLazyCounter, 5958 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14809 SdHoareTripleChecker+Valid, 27256 SdHoareTripleChecker+Invalid, 6032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-12-02 07:13:39,580 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [14809 Valid, 27256 Invalid, 6032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [74 Valid, 5958 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-12-02 07:13:39,586 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10708 states.
[2024-12-02 07:13:39,633 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10708 to 6293.
[2024-12-02 07:13:39,638 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6293 states, 6292 states have (on average 1.4934837889383343) internal successors, (9397), 6292 states have internal predecessors, (9397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:13:39,644 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6293 states to 6293 states and 9397 transitions.
[2024-12-02 07:13:39,644 INFO  L78                 Accepts]: Start accepts. Automaton has 6293 states and 9397 transitions. Word has length 3175
[2024-12-02 07:13:39,644 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:13:39,644 INFO  L471      AbstractCegarLoop]: Abstraction has 6293 states and 9397 transitions.
[2024-12-02 07:13:39,645 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 506.5) internal successors, (3039), 6 states have internal predecessors, (3039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:13:39,645 INFO  L276                IsEmpty]: Start isEmpty. Operand 6293 states and 9397 transitions.
[2024-12-02 07:13:39,686 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3177
[2024-12-02 07:13:39,686 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:13:39,687 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:13:39,741 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2024-12-02 07:13:39,887 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39
[2024-12-02 07:13:39,887 INFO  L396      AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:13:39,888 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:13:39,888 INFO  L85        PathProgramCache]: Analyzing trace with hash -1752961312, now seen corresponding path program 1 times
[2024-12-02 07:13:39,888 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:13:39,888 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186529279]
[2024-12-02 07:13:39,889 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:13:39,889 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:13:42,092 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:13:47,459 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:13:47,459 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:13:47,459 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186529279]
[2024-12-02 07:13:47,460 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186529279] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:13:47,460 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491038787]
[2024-12-02 07:13:47,460 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:13:47,460 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:13:47,460 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:13:47,462 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:13:47,462 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-12-02 07:14:00,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:14:00,156 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13457 conjuncts, 154 conjuncts are in the unsatisfiable core
[2024-12-02 07:14:00,196 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:14:03,645 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:14:03,645 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:14:03,645 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491038787] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:14:03,645 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:14:03,645 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [7] total 15
[2024-12-02 07:14:03,646 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78271281]
[2024-12-02 07:14:03,646 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:14:03,647 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 07:14:03,647 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:14:03,648 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 07:14:03,648 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210
[2024-12-02 07:14:03,649 INFO  L87              Difference]: Start difference. First operand 6293 states and 9397 transitions. Second operand  has 10 states, 10 states have (on average 317.6) internal successors, (3176), 10 states have internal predecessors, (3176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:14:09,904 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:14:09,905 INFO  L93              Difference]: Finished difference Result 14847 states and 22163 transitions.
[2024-12-02 07:14:09,905 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2024-12-02 07:14:09,905 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 317.6) internal successors, (3176), 10 states have internal predecessors, (3176), 0 states have call successors, (0), 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 3176
[2024-12-02 07:14:09,906 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:14:09,911 INFO  L225             Difference]: With dead ends: 14847
[2024-12-02 07:14:09,911 INFO  L226             Difference]: Without dead ends: 9628
[2024-12-02 07:14:09,914 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3183 GetRequests, 3170 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210
[2024-12-02 07:14:09,915 INFO  L435           NwaCegarLoop]: 6046 mSDtfsCounter, 17134 mSDsluCounter, 24106 mSDsCounter, 0 mSdLazyCounter, 11551 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17134 SdHoareTripleChecker+Valid, 30152 SdHoareTripleChecker+Invalid, 11551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2024-12-02 07:14:09,915 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [17134 Valid, 30152 Invalid, 11551 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11551 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time]
[2024-12-02 07:14:09,921 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9628 states.
[2024-12-02 07:14:09,972 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9628 to 7932.
[2024-12-02 07:14:09,978 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7932 states, 7931 states have (on average 1.4901021308788298) internal successors, (11818), 7931 states have internal predecessors, (11818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:14:09,985 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7932 states to 7932 states and 11818 transitions.
[2024-12-02 07:14:09,985 INFO  L78                 Accepts]: Start accepts. Automaton has 7932 states and 11818 transitions. Word has length 3176
[2024-12-02 07:14:09,986 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:14:09,986 INFO  L471      AbstractCegarLoop]: Abstraction has 7932 states and 11818 transitions.
[2024-12-02 07:14:09,986 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 317.6) internal successors, (3176), 10 states have internal predecessors, (3176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:14:09,986 INFO  L276                IsEmpty]: Start isEmpty. Operand 7932 states and 11818 transitions.
[2024-12-02 07:14:10,027 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3178
[2024-12-02 07:14:10,028 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:14:10,028 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:14:10,084 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0
[2024-12-02 07:14:10,229 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:14:10,229 INFO  L396      AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:14:10,229 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:14:10,230 INFO  L85        PathProgramCache]: Analyzing trace with hash -756399138, now seen corresponding path program 1 times
[2024-12-02 07:14:10,230 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:14:10,230 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329868283]
[2024-12-02 07:14:10,230 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:14:10,230 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:14:12,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:14:17,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 168 proven. 232 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:14:17,370 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 07:14:17,370 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329868283]
[2024-12-02 07:14:17,370 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329868283] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 07:14:17,370 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742542264]
[2024-12-02 07:14:17,371 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:14:17,371 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 07:14:17,371 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 07:14:17,372 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 07:14:17,394 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-12-02 07:14:26,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 07:14:26,704 INFO  L256         TraceCheckSpWp]: Trace formula consists of 13458 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-12-02 07:14:26,730 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 07:14:26,876 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 400 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 07:14:26,876 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 07:14:26,876 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742542264] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 07:14:26,876 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 07:14:26,876 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10
[2024-12-02 07:14:26,876 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344433634]
[2024-12-02 07:14:26,876 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 07:14:26,877 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 07:14:26,877 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 07:14:26,878 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 07:14:26,878 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2024-12-02 07:14:26,879 INFO  L87              Difference]: Start difference. First operand 7932 states and 11818 transitions. Second operand  has 5 states, 5 states have (on average 635.4) internal successors, (3177), 5 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:14:30,163 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 07:14:30,163 INFO  L93              Difference]: Finished difference Result 15709 states and 23438 transitions.
[2024-12-02 07:14:30,163 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 07:14:30,164 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 635.4) internal successors, (3177), 5 states have internal predecessors, (3177), 0 states have call successors, (0), 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 3177
[2024-12-02 07:14:30,164 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 07:14:30,170 INFO  L225             Difference]: With dead ends: 15709
[2024-12-02 07:14:30,170 INFO  L226             Difference]: Without dead ends: 9552
[2024-12-02 07:14:30,173 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3185 GetRequests, 3176 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110
[2024-12-02 07:14:30,174 INFO  L435           NwaCegarLoop]: 7692 mSDtfsCounter, 2398 mSDsluCounter, 19797 mSDsCounter, 0 mSdLazyCounter, 5275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2398 SdHoareTripleChecker+Valid, 27489 SdHoareTripleChecker+Invalid, 5275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-12-02 07:14:30,174 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2398 Valid, 27489 Invalid, 5275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5275 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-12-02 07:14:30,180 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9552 states.
[2024-12-02 07:14:30,226 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9552 to 7991.
[2024-12-02 07:14:30,231 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7991 states, 7990 states have (on average 1.4897371714643304) internal successors, (11903), 7990 states have internal predecessors, (11903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:14:30,237 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7991 states to 7991 states and 11903 transitions.
[2024-12-02 07:14:30,238 INFO  L78                 Accepts]: Start accepts. Automaton has 7991 states and 11903 transitions. Word has length 3177
[2024-12-02 07:14:30,238 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 07:14:30,238 INFO  L471      AbstractCegarLoop]: Abstraction has 7991 states and 11903 transitions.
[2024-12-02 07:14:30,238 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 635.4) internal successors, (3177), 5 states have internal predecessors, (3177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 07:14:30,239 INFO  L276                IsEmpty]: Start isEmpty. Operand 7991 states and 11903 transitions.
[2024-12-02 07:14:30,279 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3178
[2024-12-02 07:14:30,279 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 07:14:30,280 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 07:14:30,331 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0
[2024-12-02 07:14:30,480 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0ee6085-422c-4416-87b8-9dadeebf52ae/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41
[2024-12-02 07:14:30,480 INFO  L396      AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 07:14:30,481 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 07:14:30,481 INFO  L85        PathProgramCache]: Analyzing trace with hash 49200601, now seen corresponding path program 1 times
[2024-12-02 07:14:30,481 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 07:14:30,481 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45431018]
[2024-12-02 07:14:30,482 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 07:14:30,482 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 07:14:33,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat