./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 826ab2ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a10c9e6583b7bb9620d063f223dce3a6f04929588e6f4ac23db6236ec494c7b2
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 16:24:17,410 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-13 16:24:17,481 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-13 16:24:17,487 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 16:24:17,488 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 16:24:17,516 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 16:24:17,517 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 16:24:17,517 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 16:24:17,518 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 16:24:17,518 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-13 16:24:17,518 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 16:24:17,518 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 16:24:17,519 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 16:24:17,519 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-13 16:24:17,519 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-13 16:24:17,519 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 16:24:17,520 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-13 16:24:17,522 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-13 16:24:17,522 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-13 16:24:17,522 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-13 16:24:17,522 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-13 16:24:17,522 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 16:24:17,522 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 16:24:17,522 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 16:24:17,523 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-13 16:24:17,523 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-13 16:24:17,523 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-13 16:24:17,523 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-13 16:24:17,523 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 16:24:17,523 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-13 16:24:17,523 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 16:24:17,523 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-13 16:24:17,524 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 16:24:17,524 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 16:24:17,524 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 16:24:17,524 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 16:24:17,524 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-13 16:24:17,524 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-13 16:24:17,524 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 16:24:17,524 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 16:24:17,525 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 16:24:17,525 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 16:24:17,525 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_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a10c9e6583b7bb9620d063f223dce3a6f04929588e6f4ac23db6236ec494c7b2
[2024-11-13 16:24:17,876 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 16:24:17,886 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 16:24:17,889 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 16:24:17,891 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-13 16:24:17,891 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-13 16:24:17,892 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c
Unable to find full path for "g++"
[2024-11-13 16:24:20,048 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-13 16:24:20,408 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-13 16:24:20,415 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c
[2024-11-13 16:24:20,432 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/data/3ed7ba85e/0e26ae680a324bb69a5718bcd67f5b93/FLAGb05c516d9
[2024-11-13 16:24:20,448 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/data/3ed7ba85e/0e26ae680a324bb69a5718bcd67f5b93
[2024-11-13 16:24:20,450 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 16:24:20,452 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 16:24:20,454 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 16:24:20,454 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 16:24:20,459 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 16:24:20,461 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:20,462 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbc9fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20, skipping insertion in model container
[2024-11-13 16:24:20,462 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:20,505 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-13 16:24:20,786 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_60073d87-0496-4797-bc0d-b37b0dc5e91e/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c[14521,14534]
[2024-11-13 16:24:20,789 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 16:24:20,802 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-13 16:24:20,897 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_60073d87-0496-4797-bc0d-b37b0dc5e91e/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c[14521,14534]
[2024-11-13 16:24:20,901 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 16:24:20,943 INFO  L204         MainTranslator]: Completed translation
[2024-11-13 16:24:20,943 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20 WrapperNode
[2024-11-13 16:24:20,944 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 16:24:20,945 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 16:24:20,945 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 16:24:20,949 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 16:24:20,963 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:20,985 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:21,054 INFO  L138                Inliner]: procedures = 23, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 497
[2024-11-13 16:24:21,054 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 16:24:21,055 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 16:24:21,055 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 16:24:21,055 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 16:24:21,074 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:21,074 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:21,079 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:21,113 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-13 16:24:21,116 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:21,116 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:21,135 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:21,153 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:21,156 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:21,162 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:21,171 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 16:24:21,175 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 16:24:21,175 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 16:24:21,175 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-13 16:24:21,177 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (1/1) ...
[2024-11-13 16:24:21,192 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 16:24:21,223 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 16:24:21,256 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 16:24:21,262 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60073d87-0496-4797-bc0d-b37b0dc5e91e/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 16:24:21,299 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 16:24:21,299 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-13 16:24:21,299 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 16:24:21,299 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 16:24:21,462 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-13 16:24:21,465 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 16:24:22,370 INFO  L?                        ?]: Removed 48 outVars from TransFormulas that were not future-live.
[2024-11-13 16:24:22,370 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-13 16:24:22,392 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 16:24:22,392 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 16:24:22,393 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:24:22 BoogieIcfgContainer
[2024-11-13 16:24:22,393 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 16:24:22,400 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 16:24:22,400 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 16:24:22,408 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-13 16:24:22,408 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:24:20" (1/3) ...
[2024-11-13 16:24:22,409 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1b562b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:24:22, skipping insertion in model container
[2024-11-13 16:24:22,409 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:24:20" (2/3) ...
[2024-11-13 16:24:22,409 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e1b562b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:24:22, skipping insertion in model container
[2024-11-13 16:24:22,410 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:24:22" (3/3) ...
[2024-11-13 16:24:22,411 INFO  L112   eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c
[2024-11-13 16:24:22,431 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 16:24:22,433 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c that has 1 procedures, 137 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 16:24:22,504 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 16:24:22,519 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;@6b2976ca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 16:24:22,519 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 16:24:22,524 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 137 states, 135 states have (on average 1.7703703703703704) internal successors, (239), 136 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:22,534 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2024-11-13 16:24:22,534 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:22,535 INFO  L215           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]
[2024-11-13 16:24:22,536 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:22,541 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:22,542 INFO  L85        PathProgramCache]: Analyzing trace with hash 852781424, now seen corresponding path program 1 times
[2024-11-13 16:24:22,551 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:22,551 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414780091]
[2024-11-13 16:24:22,552 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:22,552 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:22,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:23,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:23,023 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:23,023 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414780091]
[2024-11-13 16:24:23,024 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414780091] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:23,024 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:23,026 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 16:24:23,027 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885416755]
[2024-11-13 16:24:23,028 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:23,033 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-13 16:24:23,035 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:23,053 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-13 16:24:23,053 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-13 16:24:23,056 INFO  L87              Difference]: Start difference. First operand  has 137 states, 135 states have (on average 1.7703703703703704) internal successors, (239), 136 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:23,086 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:23,090 INFO  L93              Difference]: Finished difference Result 211 states and 367 transitions.
[2024-11-13 16:24:23,092 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-13 16:24:23,093 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 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 37
[2024-11-13 16:24:23,094 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:23,103 INFO  L225             Difference]: With dead ends: 211
[2024-11-13 16:24:23,103 INFO  L226             Difference]: Without dead ends: 133
[2024-11-13 16:24:23,107 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-13 16:24:23,110 INFO  L432           NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:23,111 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 16:24:23,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 133 states.
[2024-11-13 16:24:23,147 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133.
[2024-11-13 16:24:23,149 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 133 states, 132 states have (on average 1.7575757575757576) internal successors, (232), 132 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:23,154 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 232 transitions.
[2024-11-13 16:24:23,156 INFO  L78                 Accepts]: Start accepts. Automaton has 133 states and 232 transitions. Word has length 37
[2024-11-13 16:24:23,156 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:23,157 INFO  L471      AbstractCegarLoop]: Abstraction has 133 states and 232 transitions.
[2024-11-13 16:24:23,157 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:23,157 INFO  L276                IsEmpty]: Start isEmpty. Operand 133 states and 232 transitions.
[2024-11-13 16:24:23,159 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2024-11-13 16:24:23,159 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:23,159 INFO  L215           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]
[2024-11-13 16:24:23,160 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-13 16:24:23,160 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:23,161 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:23,161 INFO  L85        PathProgramCache]: Analyzing trace with hash 35132974, now seen corresponding path program 1 times
[2024-11-13 16:24:23,161 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:23,161 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201003561]
[2024-11-13 16:24:23,162 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:23,162 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:23,245 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:23,759 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:23,759 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:23,760 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201003561]
[2024-11-13 16:24:23,760 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201003561] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:23,760 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:23,760 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 16:24:23,760 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015676622]
[2024-11-13 16:24:23,760 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:23,762 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 16:24:23,762 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:23,764 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 16:24:23,764 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:24:23,765 INFO  L87              Difference]: Start difference. First operand 133 states and 232 transitions. Second operand  has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:23,945 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:23,945 INFO  L93              Difference]: Finished difference Result 210 states and 360 transitions.
[2024-11-13 16:24:23,949 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-13 16:24:23,950 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 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 37
[2024-11-13 16:24:23,950 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:23,951 INFO  L225             Difference]: With dead ends: 210
[2024-11-13 16:24:23,951 INFO  L226             Difference]: Without dead ends: 133
[2024-11-13 16:24:23,952 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:24:23,953 INFO  L432           NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:23,957 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 885 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:23,958 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 133 states.
[2024-11-13 16:24:23,965 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133.
[2024-11-13 16:24:23,965 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 133 states, 132 states have (on average 1.5303030303030303) internal successors, (202), 132 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:23,967 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 202 transitions.
[2024-11-13 16:24:23,967 INFO  L78                 Accepts]: Start accepts. Automaton has 133 states and 202 transitions. Word has length 37
[2024-11-13 16:24:23,967 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:23,967 INFO  L471      AbstractCegarLoop]: Abstraction has 133 states and 202 transitions.
[2024-11-13 16:24:23,967 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:23,968 INFO  L276                IsEmpty]: Start isEmpty. Operand 133 states and 202 transitions.
[2024-11-13 16:24:23,969 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-11-13 16:24:23,969 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:23,969 INFO  L215           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]
[2024-11-13 16:24:23,970 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-13 16:24:23,970 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:23,970 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:23,971 INFO  L85        PathProgramCache]: Analyzing trace with hash 1856068084, now seen corresponding path program 1 times
[2024-11-13 16:24:23,971 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:23,971 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188931262]
[2024-11-13 16:24:23,971 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:23,971 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:24,058 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:24,309 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:24,309 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:24,309 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188931262]
[2024-11-13 16:24:24,309 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188931262] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:24,309 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:24,309 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:24:24,310 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308714364]
[2024-11-13 16:24:24,310 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:24,310 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:24:24,310 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:24,313 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:24:24,313 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:24,314 INFO  L87              Difference]: Start difference. First operand 133 states and 202 transitions. Second operand  has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:24,418 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:24,419 INFO  L93              Difference]: Finished difference Result 269 states and 432 transitions.
[2024-11-13 16:24:24,419 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 16:24:24,419 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66
[2024-11-13 16:24:24,420 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:24,422 INFO  L225             Difference]: With dead ends: 269
[2024-11-13 16:24:24,423 INFO  L226             Difference]: Without dead ends: 196
[2024-11-13 16:24:24,427 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:24,428 INFO  L432           NwaCegarLoop]: 195 mSDtfsCounter, 97 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:24,428 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 352 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:24,430 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 196 states.
[2024-11-13 16:24:24,456 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193.
[2024-11-13 16:24:24,457 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 193 states, 192 states have (on average 1.5625) internal successors, (300), 192 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:24,459 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 300 transitions.
[2024-11-13 16:24:24,459 INFO  L78                 Accepts]: Start accepts. Automaton has 193 states and 300 transitions. Word has length 66
[2024-11-13 16:24:24,459 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:24,459 INFO  L471      AbstractCegarLoop]: Abstraction has 193 states and 300 transitions.
[2024-11-13 16:24:24,460 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:24,460 INFO  L276                IsEmpty]: Start isEmpty. Operand 193 states and 300 transitions.
[2024-11-13 16:24:24,462 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-13 16:24:24,462 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:24,462 INFO  L215           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]
[2024-11-13 16:24:24,462 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-13 16:24:24,463 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:24,463 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:24,463 INFO  L85        PathProgramCache]: Analyzing trace with hash -731490430, now seen corresponding path program 1 times
[2024-11-13 16:24:24,464 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:24,464 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686880219]
[2024-11-13 16:24:24,464 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:24,464 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:24,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:24,798 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:24,798 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:24,798 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686880219]
[2024-11-13 16:24:24,798 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686880219] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:24,798 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:24,799 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:24:24,799 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047478972]
[2024-11-13 16:24:24,799 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:24,799 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:24:24,799 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:24,800 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:24:24,803 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:24,803 INFO  L87              Difference]: Start difference. First operand 193 states and 300 transitions. Second operand  has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:24,878 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:24,878 INFO  L93              Difference]: Finished difference Result 443 states and 716 transitions.
[2024-11-13 16:24:24,878 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 16:24:24,878 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68
[2024-11-13 16:24:24,879 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:24,881 INFO  L225             Difference]: With dead ends: 443
[2024-11-13 16:24:24,881 INFO  L226             Difference]: Without dead ends: 310
[2024-11-13 16:24:24,882 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:24,887 INFO  L432           NwaCegarLoop]: 199 mSDtfsCounter, 99 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:24,888 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 365 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:24,889 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 310 states.
[2024-11-13 16:24:24,927 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 306.
[2024-11-13 16:24:24,928 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 306 states, 305 states have (on average 1.5967213114754097) internal successors, (487), 305 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:24,933 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 487 transitions.
[2024-11-13 16:24:24,934 INFO  L78                 Accepts]: Start accepts. Automaton has 306 states and 487 transitions. Word has length 68
[2024-11-13 16:24:24,934 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:24,934 INFO  L471      AbstractCegarLoop]: Abstraction has 306 states and 487 transitions.
[2024-11-13 16:24:24,935 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:24,935 INFO  L276                IsEmpty]: Start isEmpty. Operand 306 states and 487 transitions.
[2024-11-13 16:24:24,937 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 71
[2024-11-13 16:24:24,937 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:24,938 INFO  L215           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]
[2024-11-13 16:24:24,938 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-13 16:24:24,938 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:24,939 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:24,939 INFO  L85        PathProgramCache]: Analyzing trace with hash -1929972208, now seen corresponding path program 1 times
[2024-11-13 16:24:24,939 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:24,939 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451227572]
[2024-11-13 16:24:24,940 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:24,940 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:25,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:25,241 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:25,241 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:25,242 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451227572]
[2024-11-13 16:24:25,242 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451227572] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:25,242 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:25,242 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:24:25,242 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715643725]
[2024-11-13 16:24:25,242 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:25,243 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:24:25,243 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:25,243 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:24:25,243 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:25,244 INFO  L87              Difference]: Start difference. First operand 306 states and 487 transitions. Second operand  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:25,319 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:25,320 INFO  L93              Difference]: Finished difference Result 766 states and 1249 transitions.
[2024-11-13 16:24:25,320 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 16:24:25,320 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70
[2024-11-13 16:24:25,322 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:25,326 INFO  L225             Difference]: With dead ends: 766
[2024-11-13 16:24:25,327 INFO  L226             Difference]: Without dead ends: 520
[2024-11-13 16:24:25,328 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:25,329 INFO  L432           NwaCegarLoop]: 199 mSDtfsCounter, 93 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:25,329 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 366 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:25,334 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 520 states.
[2024-11-13 16:24:25,377 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 514.
[2024-11-13 16:24:25,378 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 514 states, 513 states have (on average 1.612085769980507) internal successors, (827), 513 states have internal predecessors, (827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:25,382 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 827 transitions.
[2024-11-13 16:24:25,382 INFO  L78                 Accepts]: Start accepts. Automaton has 514 states and 827 transitions. Word has length 70
[2024-11-13 16:24:25,383 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:25,383 INFO  L471      AbstractCegarLoop]: Abstraction has 514 states and 827 transitions.
[2024-11-13 16:24:25,384 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:25,384 INFO  L276                IsEmpty]: Start isEmpty. Operand 514 states and 827 transitions.
[2024-11-13 16:24:25,387 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2024-11-13 16:24:25,387 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:25,387 INFO  L215           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]
[2024-11-13 16:24:25,388 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-13 16:24:25,388 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:25,388 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:25,389 INFO  L85        PathProgramCache]: Analyzing trace with hash -1287047778, now seen corresponding path program 1 times
[2024-11-13 16:24:25,389 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:25,389 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155429129]
[2024-11-13 16:24:25,389 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:25,389 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:25,456 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:25,736 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:25,736 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:25,736 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155429129]
[2024-11-13 16:24:25,736 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155429129] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:25,736 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:25,736 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 16:24:25,737 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996408456]
[2024-11-13 16:24:25,737 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:25,737 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 16:24:25,737 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:25,738 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 16:24:25,738 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:24:25,738 INFO  L87              Difference]: Start difference. First operand 514 states and 827 transitions. Second operand  has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:26,050 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:26,051 INFO  L93              Difference]: Finished difference Result 2190 states and 3633 transitions.
[2024-11-13 16:24:26,053 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-13 16:24:26,053 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72
[2024-11-13 16:24:26,054 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:26,068 INFO  L225             Difference]: With dead ends: 2190
[2024-11-13 16:24:26,068 INFO  L226             Difference]: Without dead ends: 1736
[2024-11-13 16:24:26,070 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-13 16:24:26,071 INFO  L432           NwaCegarLoop]: 193 mSDtfsCounter, 812 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:26,074 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1144 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-13 16:24:26,077 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1736 states.
[2024-11-13 16:24:26,153 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 912.
[2024-11-13 16:24:26,158 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 912 states, 911 states have (on average 1.628979143798024) internal successors, (1484), 911 states have internal predecessors, (1484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:26,166 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 912 states to 912 states and 1484 transitions.
[2024-11-13 16:24:26,170 INFO  L78                 Accepts]: Start accepts. Automaton has 912 states and 1484 transitions. Word has length 72
[2024-11-13 16:24:26,170 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:26,170 INFO  L471      AbstractCegarLoop]: Abstraction has 912 states and 1484 transitions.
[2024-11-13 16:24:26,170 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:26,171 INFO  L276                IsEmpty]: Start isEmpty. Operand 912 states and 1484 transitions.
[2024-11-13 16:24:26,172 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2024-11-13 16:24:26,172 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:26,172 INFO  L215           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]
[2024-11-13 16:24:26,172 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-13 16:24:26,172 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:26,173 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:26,176 INFO  L85        PathProgramCache]: Analyzing trace with hash 1128359232, now seen corresponding path program 1 times
[2024-11-13 16:24:26,176 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:26,176 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127849247]
[2024-11-13 16:24:26,177 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:26,177 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:26,250 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:26,432 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:26,434 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:26,434 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127849247]
[2024-11-13 16:24:26,435 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127849247] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:26,435 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:26,435 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:24:26,435 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149281364]
[2024-11-13 16:24:26,435 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:26,436 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:24:26,436 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:26,436 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:24:26,437 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:24:26,438 INFO  L87              Difference]: Start difference. First operand 912 states and 1484 transitions. Second operand  has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:26,611 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:26,612 INFO  L93              Difference]: Finished difference Result 2654 states and 4394 transitions.
[2024-11-13 16:24:26,612 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:24:26,612 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73
[2024-11-13 16:24:26,613 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:26,621 INFO  L225             Difference]: With dead ends: 2654
[2024-11-13 16:24:26,622 INFO  L226             Difference]: Without dead ends: 1802
[2024-11-13 16:24:26,624 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:24:26,624 INFO  L432           NwaCegarLoop]: 194 mSDtfsCounter, 359 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:26,626 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 651 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:26,629 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1802 states.
[2024-11-13 16:24:26,688 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1348.
[2024-11-13 16:24:26,692 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1348 states, 1347 states have (on average 1.6384558277654047) internal successors, (2207), 1347 states have internal predecessors, (2207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:26,699 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1348 states to 1348 states and 2207 transitions.
[2024-11-13 16:24:26,700 INFO  L78                 Accepts]: Start accepts. Automaton has 1348 states and 2207 transitions. Word has length 73
[2024-11-13 16:24:26,700 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:26,700 INFO  L471      AbstractCegarLoop]: Abstraction has 1348 states and 2207 transitions.
[2024-11-13 16:24:26,701 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:26,701 INFO  L276                IsEmpty]: Start isEmpty. Operand 1348 states and 2207 transitions.
[2024-11-13 16:24:26,702 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-13 16:24:26,702 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:26,703 INFO  L215           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]
[2024-11-13 16:24:26,703 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-13 16:24:26,703 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:26,704 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:26,705 INFO  L85        PathProgramCache]: Analyzing trace with hash -1134430443, now seen corresponding path program 1 times
[2024-11-13 16:24:26,705 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:26,705 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908677274]
[2024-11-13 16:24:26,705 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:26,705 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:26,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:26,918 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:26,919 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:26,919 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908677274]
[2024-11-13 16:24:26,919 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908677274] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:26,919 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:26,919 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:24:26,919 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373612460]
[2024-11-13 16:24:26,919 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:26,920 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:24:26,920 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:26,920 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:24:26,921 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:24:26,921 INFO  L87              Difference]: Start difference. First operand 1348 states and 2207 transitions. Second operand  has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:27,107 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:27,107 INFO  L93              Difference]: Finished difference Result 3908 states and 6458 transitions.
[2024-11-13 16:24:27,108 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:24:27,108 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 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 74
[2024-11-13 16:24:27,108 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:27,123 INFO  L225             Difference]: With dead ends: 3908
[2024-11-13 16:24:27,123 INFO  L226             Difference]: Without dead ends: 2620
[2024-11-13 16:24:27,127 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:24:27,128 INFO  L432           NwaCegarLoop]: 193 mSDtfsCounter, 357 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:27,128 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 652 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:27,134 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2620 states.
[2024-11-13 16:24:27,223 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2620 to 1972.
[2024-11-13 16:24:27,228 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1972 states, 1971 states have (on average 1.637239979705733) internal successors, (3227), 1971 states have internal predecessors, (3227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:27,240 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 3227 transitions.
[2024-11-13 16:24:27,240 INFO  L78                 Accepts]: Start accepts. Automaton has 1972 states and 3227 transitions. Word has length 74
[2024-11-13 16:24:27,241 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:27,241 INFO  L471      AbstractCegarLoop]: Abstraction has 1972 states and 3227 transitions.
[2024-11-13 16:24:27,242 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:27,242 INFO  L276                IsEmpty]: Start isEmpty. Operand 1972 states and 3227 transitions.
[2024-11-13 16:24:27,246 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2024-11-13 16:24:27,246 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:27,247 INFO  L215           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]
[2024-11-13 16:24:27,247 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-13 16:24:27,249 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:27,249 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:27,249 INFO  L85        PathProgramCache]: Analyzing trace with hash 1902538007, now seen corresponding path program 1 times
[2024-11-13 16:24:27,249 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:27,249 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854679213]
[2024-11-13 16:24:27,250 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:27,250 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:27,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:27,414 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:27,414 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:27,414 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854679213]
[2024-11-13 16:24:27,414 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854679213] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:27,414 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:27,414 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:24:27,415 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547493844]
[2024-11-13 16:24:27,415 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:27,415 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:24:27,415 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:27,416 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:24:27,416 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:24:27,417 INFO  L87              Difference]: Start difference. First operand 1972 states and 3227 transitions. Second operand  has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:27,625 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:27,625 INFO  L93              Difference]: Finished difference Result 5692 states and 9382 transitions.
[2024-11-13 16:24:27,629 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:24:27,630 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75
[2024-11-13 16:24:27,630 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:27,649 INFO  L225             Difference]: With dead ends: 5692
[2024-11-13 16:24:27,649 INFO  L226             Difference]: Without dead ends: 3780
[2024-11-13 16:24:27,652 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:24:27,655 INFO  L432           NwaCegarLoop]: 200 mSDtfsCounter, 355 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:27,656 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 661 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:27,661 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3780 states.
[2024-11-13 16:24:27,788 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3780 to 2860.
[2024-11-13 16:24:27,794 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2860 states, 2859 states have (on average 1.634487583071004) internal successors, (4673), 2859 states have internal predecessors, (4673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:27,849 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 4673 transitions.
[2024-11-13 16:24:27,851 INFO  L78                 Accepts]: Start accepts. Automaton has 2860 states and 4673 transitions. Word has length 75
[2024-11-13 16:24:27,851 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:27,851 INFO  L471      AbstractCegarLoop]: Abstraction has 2860 states and 4673 transitions.
[2024-11-13 16:24:27,851 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:27,851 INFO  L276                IsEmpty]: Start isEmpty. Operand 2860 states and 4673 transitions.
[2024-11-13 16:24:27,854 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2024-11-13 16:24:27,854 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:27,855 INFO  L215           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]
[2024-11-13 16:24:27,855 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-13 16:24:27,855 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:27,859 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:27,860 INFO  L85        PathProgramCache]: Analyzing trace with hash -326880713, now seen corresponding path program 1 times
[2024-11-13 16:24:27,860 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:27,860 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746682790]
[2024-11-13 16:24:27,860 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:27,860 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:27,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:27,974 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:27,975 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:27,975 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746682790]
[2024-11-13 16:24:27,975 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746682790] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:27,975 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:27,975 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:24:27,975 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420704828]
[2024-11-13 16:24:27,975 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:27,976 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:24:27,976 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:27,976 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:24:27,976 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:27,976 INFO  L87              Difference]: Start difference. First operand 2860 states and 4673 transitions. Second operand  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:28,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:28,093 INFO  L93              Difference]: Finished difference Result 6550 states and 10704 transitions.
[2024-11-13 16:24:28,094 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 16:24:28,094 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76
[2024-11-13 16:24:28,094 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:28,113 INFO  L225             Difference]: With dead ends: 6550
[2024-11-13 16:24:28,114 INFO  L226             Difference]: Without dead ends: 4512
[2024-11-13 16:24:28,117 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:28,117 INFO  L432           NwaCegarLoop]: 235 mSDtfsCounter, 92 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:28,118 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 413 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 16:24:28,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4512 states.
[2024-11-13 16:24:28,258 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 4510.
[2024-11-13 16:24:28,268 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4510 states, 4509 states have (on average 1.6185406963850077) internal successors, (7298), 4509 states have internal predecessors, (7298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:28,289 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4510 states to 4510 states and 7298 transitions.
[2024-11-13 16:24:28,290 INFO  L78                 Accepts]: Start accepts. Automaton has 4510 states and 7298 transitions. Word has length 76
[2024-11-13 16:24:28,290 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:28,290 INFO  L471      AbstractCegarLoop]: Abstraction has 4510 states and 7298 transitions.
[2024-11-13 16:24:28,290 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:28,290 INFO  L276                IsEmpty]: Start isEmpty. Operand 4510 states and 7298 transitions.
[2024-11-13 16:24:28,292 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2024-11-13 16:24:28,292 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:28,292 INFO  L215           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]
[2024-11-13 16:24:28,292 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-13 16:24:28,292 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:28,293 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:28,293 INFO  L85        PathProgramCache]: Analyzing trace with hash 1885783927, now seen corresponding path program 1 times
[2024-11-13 16:24:28,293 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:28,293 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790987370]
[2024-11-13 16:24:28,293 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:28,293 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:28,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:28,400 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:28,400 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:28,400 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790987370]
[2024-11-13 16:24:28,400 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790987370] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:28,400 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:28,400 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:24:28,400 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548015974]
[2024-11-13 16:24:28,401 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:28,402 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:24:28,402 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:28,402 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:24:28,402 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:28,403 INFO  L87              Difference]: Start difference. First operand 4510 states and 7298 transitions. Second operand  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:28,577 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:28,578 INFO  L93              Difference]: Finished difference Result 9926 states and 16104 transitions.
[2024-11-13 16:24:28,578 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 16:24:28,578 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76
[2024-11-13 16:24:28,578 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:28,603 INFO  L225             Difference]: With dead ends: 9926
[2024-11-13 16:24:28,603 INFO  L226             Difference]: Without dead ends: 6732
[2024-11-13 16:24:28,608 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:28,609 INFO  L432           NwaCegarLoop]: 264 mSDtfsCounter, 98 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:28,609 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 441 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 16:24:28,617 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6732 states.
[2024-11-13 16:24:28,873 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6732 to 6730.
[2024-11-13 16:24:28,887 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6730 states, 6729 states have (on average 1.607965522365879) internal successors, (10820), 6729 states have internal predecessors, (10820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:28,922 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6730 states to 6730 states and 10820 transitions.
[2024-11-13 16:24:28,923 INFO  L78                 Accepts]: Start accepts. Automaton has 6730 states and 10820 transitions. Word has length 76
[2024-11-13 16:24:28,923 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:28,923 INFO  L471      AbstractCegarLoop]: Abstraction has 6730 states and 10820 transitions.
[2024-11-13 16:24:28,924 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:28,924 INFO  L276                IsEmpty]: Start isEmpty. Operand 6730 states and 10820 transitions.
[2024-11-13 16:24:28,925 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2024-11-13 16:24:28,925 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:28,925 INFO  L215           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]
[2024-11-13 16:24:28,925 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-13 16:24:28,925 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:28,926 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:28,926 INFO  L85        PathProgramCache]: Analyzing trace with hash 1020554423, now seen corresponding path program 1 times
[2024-11-13 16:24:28,926 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:28,926 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817488696]
[2024-11-13 16:24:28,926 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:28,927 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:28,963 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:29,029 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:29,029 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:29,030 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817488696]
[2024-11-13 16:24:29,030 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817488696] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:29,030 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:29,030 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:24:29,030 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504923847]
[2024-11-13 16:24:29,030 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:29,031 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:24:29,031 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:29,033 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:24:29,033 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:29,034 INFO  L87              Difference]: Start difference. First operand 6730 states and 10820 transitions. Second operand  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:29,296 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:29,297 INFO  L93              Difference]: Finished difference Result 15111 states and 24508 transitions.
[2024-11-13 16:24:29,297 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 16:24:29,297 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76
[2024-11-13 16:24:29,298 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:29,337 INFO  L225             Difference]: With dead ends: 15111
[2024-11-13 16:24:29,337 INFO  L226             Difference]: Without dead ends: 10171
[2024-11-13 16:24:29,345 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:29,345 INFO  L432           NwaCegarLoop]: 285 mSDtfsCounter, 104 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:29,346 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 461 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 16:24:29,358 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10171 states.
[2024-11-13 16:24:29,689 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10171 to 10169.
[2024-11-13 16:24:29,709 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10169 states, 10168 states have (on average 1.6009047993705743) internal successors, (16278), 10168 states have internal predecessors, (16278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:29,754 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10169 states to 10169 states and 16278 transitions.
[2024-11-13 16:24:29,754 INFO  L78                 Accepts]: Start accepts. Automaton has 10169 states and 16278 transitions. Word has length 76
[2024-11-13 16:24:29,755 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:29,755 INFO  L471      AbstractCegarLoop]: Abstraction has 10169 states and 16278 transitions.
[2024-11-13 16:24:29,755 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:29,755 INFO  L276                IsEmpty]: Start isEmpty. Operand 10169 states and 16278 transitions.
[2024-11-13 16:24:29,756 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-11-13 16:24:29,756 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:29,756 INFO  L215           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]
[2024-11-13 16:24:29,756 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-13 16:24:29,756 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:29,757 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:29,757 INFO  L85        PathProgramCache]: Analyzing trace with hash 850403503, now seen corresponding path program 1 times
[2024-11-13 16:24:29,757 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:29,757 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586268598]
[2024-11-13 16:24:29,757 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:29,757 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:29,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:30,093 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:30,093 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:30,094 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586268598]
[2024-11-13 16:24:30,094 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586268598] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:30,094 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:30,094 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 16:24:30,094 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013615086]
[2024-11-13 16:24:30,094 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:30,095 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 16:24:30,095 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:30,095 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 16:24:30,095 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:24:30,096 INFO  L87              Difference]: Start difference. First operand 10169 states and 16278 transitions. Second operand  has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:30,425 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:30,425 INFO  L93              Difference]: Finished difference Result 20262 states and 32453 transitions.
[2024-11-13 16:24:30,426 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-13 16:24:30,426 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77
[2024-11-13 16:24:30,427 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:30,462 INFO  L225             Difference]: With dead ends: 20262
[2024-11-13 16:24:30,463 INFO  L226             Difference]: Without dead ends: 10171
[2024-11-13 16:24:30,474 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-13 16:24:30,475 INFO  L432           NwaCegarLoop]: 200 mSDtfsCounter, 283 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:30,476 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 538 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:30,489 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10171 states.
[2024-11-13 16:24:30,934 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10171 to 10169.
[2024-11-13 16:24:30,964 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10169 states, 10168 states have (on average 1.5886113296616837) internal successors, (16153), 10168 states have internal predecessors, (16153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:31,002 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10169 states to 10169 states and 16153 transitions.
[2024-11-13 16:24:31,003 INFO  L78                 Accepts]: Start accepts. Automaton has 10169 states and 16153 transitions. Word has length 77
[2024-11-13 16:24:31,004 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:31,004 INFO  L471      AbstractCegarLoop]: Abstraction has 10169 states and 16153 transitions.
[2024-11-13 16:24:31,005 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:31,006 INFO  L276                IsEmpty]: Start isEmpty. Operand 10169 states and 16153 transitions.
[2024-11-13 16:24:31,006 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-11-13 16:24:31,008 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:31,008 INFO  L215           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]
[2024-11-13 16:24:31,008 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-13 16:24:31,008 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:31,009 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:31,009 INFO  L85        PathProgramCache]: Analyzing trace with hash 61655256, now seen corresponding path program 1 times
[2024-11-13 16:24:31,009 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:31,009 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771360974]
[2024-11-13 16:24:31,010 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:31,010 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:31,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:31,340 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:31,340 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:31,340 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771360974]
[2024-11-13 16:24:31,340 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771360974] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:31,340 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:31,341 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 16:24:31,341 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199242872]
[2024-11-13 16:24:31,341 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:31,341 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 16:24:31,341 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:31,342 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 16:24:31,342 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:24:31,342 INFO  L87              Difference]: Start difference. First operand 10169 states and 16153 transitions. Second operand  has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:31,832 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:31,833 INFO  L93              Difference]: Finished difference Result 29138 states and 46435 transitions.
[2024-11-13 16:24:31,833 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-13 16:24:31,834 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 80
[2024-11-13 16:24:31,834 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:31,887 INFO  L225             Difference]: With dead ends: 29138
[2024-11-13 16:24:31,887 INFO  L226             Difference]: Without dead ends: 19047
[2024-11-13 16:24:31,900 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30
[2024-11-13 16:24:31,901 INFO  L432           NwaCegarLoop]: 192 mSDtfsCounter, 185 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:31,901 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 540 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:31,928 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19047 states.
[2024-11-13 16:24:32,428 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19047 to 19045.
[2024-11-13 16:24:32,565 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19045 states, 19044 states have (on average 1.5750892669607226) internal successors, (29996), 19044 states have internal predecessors, (29996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:32,609 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19045 states to 19045 states and 29996 transitions.
[2024-11-13 16:24:32,611 INFO  L78                 Accepts]: Start accepts. Automaton has 19045 states and 29996 transitions. Word has length 80
[2024-11-13 16:24:32,611 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:32,612 INFO  L471      AbstractCegarLoop]: Abstraction has 19045 states and 29996 transitions.
[2024-11-13 16:24:32,613 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:32,613 INFO  L276                IsEmpty]: Start isEmpty. Operand 19045 states and 29996 transitions.
[2024-11-13 16:24:32,614 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 82
[2024-11-13 16:24:32,614 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:32,614 INFO  L215           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]
[2024-11-13 16:24:32,614 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-13 16:24:32,615 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:32,615 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:32,615 INFO  L85        PathProgramCache]: Analyzing trace with hash 1482737304, now seen corresponding path program 1 times
[2024-11-13 16:24:32,615 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:32,615 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33921900]
[2024-11-13 16:24:32,616 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:32,616 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:32,668 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:33,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:24:33,096 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:33,096 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33921900]
[2024-11-13 16:24:33,096 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33921900] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:33,096 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:33,096 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-13 16:24:33,097 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048932812]
[2024-11-13 16:24:33,097 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:33,097 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-13 16:24:33,097 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:33,098 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-13 16:24:33,098 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-13 16:24:33,098 INFO  L87              Difference]: Start difference. First operand 19045 states and 29996 transitions. Second operand  has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:33,415 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:33,415 INFO  L93              Difference]: Finished difference Result 20133 states and 31445 transitions.
[2024-11-13 16:24:33,416 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-13 16:24:33,416 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 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 81
[2024-11-13 16:24:33,416 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:33,561 INFO  L225             Difference]: With dead ends: 20133
[2024-11-13 16:24:33,561 INFO  L226             Difference]: Without dead ends: 20131
[2024-11-13 16:24:33,566 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-13 16:24:33,567 INFO  L432           NwaCegarLoop]: 196 mSDtfsCounter, 0 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:33,567 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1354 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:33,584 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20131 states.
[2024-11-13 16:24:34,013 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20131 to 20131.
[2024-11-13 16:24:34,045 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20131 states, 20130 states have (on average 1.5436164927968206) internal successors, (31073), 20130 states have internal predecessors, (31073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:34,183 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20131 states to 20131 states and 31073 transitions.
[2024-11-13 16:24:34,185 INFO  L78                 Accepts]: Start accepts. Automaton has 20131 states and 31073 transitions. Word has length 81
[2024-11-13 16:24:34,185 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:34,185 INFO  L471      AbstractCegarLoop]: Abstraction has 20131 states and 31073 transitions.
[2024-11-13 16:24:34,186 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:34,186 INFO  L276                IsEmpty]: Start isEmpty. Operand 20131 states and 31073 transitions.
[2024-11-13 16:24:34,188 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-11-13 16:24:34,188 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:34,188 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:24:34,188 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-13 16:24:34,188 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:34,189 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:34,189 INFO  L85        PathProgramCache]: Analyzing trace with hash 969366049, now seen corresponding path program 1 times
[2024-11-13 16:24:34,189 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:34,189 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118506594]
[2024-11-13 16:24:34,189 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:34,190 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:34,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:34,520 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-13 16:24:34,520 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:34,520 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118506594]
[2024-11-13 16:24:34,520 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118506594] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:34,521 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:34,521 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 16:24:34,523 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876804601]
[2024-11-13 16:24:34,523 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:34,524 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 16:24:34,524 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:34,525 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 16:24:34,525 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:24:34,525 INFO  L87              Difference]: Start difference. First operand 20131 states and 31073 transitions. Second operand  has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:35,408 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:35,408 INFO  L93              Difference]: Finished difference Result 49399 states and 76493 transitions.
[2024-11-13 16:24:35,409 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-13 16:24:35,409 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 109
[2024-11-13 16:24:35,410 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:35,542 INFO  L225             Difference]: With dead ends: 49399
[2024-11-13 16:24:35,542 INFO  L226             Difference]: Without dead ends: 39817
[2024-11-13 16:24:35,564 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-13 16:24:35,566 INFO  L432           NwaCegarLoop]: 315 mSDtfsCounter, 452 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:35,566 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 826 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:35,603 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39817 states.
[2024-11-13 16:24:36,549 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39817 to 31003.
[2024-11-13 16:24:36,591 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31003 states, 31002 states have (on average 1.5418037545964776) internal successors, (47799), 31002 states have internal predecessors, (47799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:36,655 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31003 states to 31003 states and 47799 transitions.
[2024-11-13 16:24:36,657 INFO  L78                 Accepts]: Start accepts. Automaton has 31003 states and 47799 transitions. Word has length 109
[2024-11-13 16:24:36,659 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:36,660 INFO  L471      AbstractCegarLoop]: Abstraction has 31003 states and 47799 transitions.
[2024-11-13 16:24:36,660 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:36,660 INFO  L276                IsEmpty]: Start isEmpty. Operand 31003 states and 47799 transitions.
[2024-11-13 16:24:36,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-11-13 16:24:36,662 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:36,662 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:24:36,662 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-13 16:24:36,662 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:36,663 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:36,663 INFO  L85        PathProgramCache]: Analyzing trace with hash -1112936607, now seen corresponding path program 1 times
[2024-11-13 16:24:36,663 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:36,663 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799161775]
[2024-11-13 16:24:36,663 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:36,663 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:36,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:36,926 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-13 16:24:36,927 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:36,927 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799161775]
[2024-11-13 16:24:36,927 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799161775] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:36,928 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:36,928 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 16:24:36,928 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668110938]
[2024-11-13 16:24:36,928 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:36,929 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 16:24:36,929 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:36,930 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 16:24:36,931 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:24:36,931 INFO  L87              Difference]: Start difference. First operand 31003 states and 47799 transitions. Second operand  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:37,688 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:37,688 INFO  L93              Difference]: Finished difference Result 53263 states and 82485 transitions.
[2024-11-13 16:24:37,689 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-13 16:24:37,689 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 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 109
[2024-11-13 16:24:37,689 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:37,820 INFO  L225             Difference]: With dead ends: 53263
[2024-11-13 16:24:37,820 INFO  L226             Difference]: Without dead ends: 43681
[2024-11-13 16:24:37,840 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-13 16:24:37,841 INFO  L432           NwaCegarLoop]: 317 mSDtfsCounter, 445 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:37,841 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 950 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-13 16:24:37,876 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 43681 states.
[2024-11-13 16:24:38,779 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 43681 to 42075.
[2024-11-13 16:24:38,830 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42075 states, 42074 states have (on average 1.5423064125112895) internal successors, (64891), 42074 states have internal predecessors, (64891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:38,917 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42075 states to 42075 states and 64891 transitions.
[2024-11-13 16:24:38,920 INFO  L78                 Accepts]: Start accepts. Automaton has 42075 states and 64891 transitions. Word has length 109
[2024-11-13 16:24:38,920 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:38,920 INFO  L471      AbstractCegarLoop]: Abstraction has 42075 states and 64891 transitions.
[2024-11-13 16:24:38,920 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:38,921 INFO  L276                IsEmpty]: Start isEmpty. Operand 42075 states and 64891 transitions.
[2024-11-13 16:24:38,923 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-11-13 16:24:38,923 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:38,924 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:24:38,924 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-11-13 16:24:38,924 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:38,925 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:38,925 INFO  L85        PathProgramCache]: Analyzing trace with hash -1978166111, now seen corresponding path program 1 times
[2024-11-13 16:24:38,925 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:38,925 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172039663]
[2024-11-13 16:24:38,925 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:38,925 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:38,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:39,161 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-13 16:24:39,161 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:39,162 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172039663]
[2024-11-13 16:24:39,162 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172039663] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:39,162 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:39,162 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 16:24:39,162 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117642296]
[2024-11-13 16:24:39,162 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:39,163 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 16:24:39,163 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:39,163 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 16:24:39,163 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:24:39,164 INFO  L87              Difference]: Start difference. First operand 42075 states and 64891 transitions. Second operand  has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:40,403 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:40,404 INFO  L93              Difference]: Finished difference Result 59859 states and 92855 transitions.
[2024-11-13 16:24:40,404 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-13 16:24:40,405 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 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 109
[2024-11-13 16:24:40,405 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:40,549 INFO  L225             Difference]: With dead ends: 59859
[2024-11-13 16:24:40,550 INFO  L226             Difference]: Without dead ends: 50017
[2024-11-13 16:24:40,563 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2024-11-13 16:24:40,565 INFO  L432           NwaCegarLoop]: 305 mSDtfsCounter, 443 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 923 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:40,565 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 923 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:40,600 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50017 states.
[2024-11-13 16:24:41,859 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50017 to 48411.
[2024-11-13 16:24:41,909 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 48411 states, 48410 states have (on average 1.5449493906217724) internal successors, (74791), 48410 states have internal predecessors, (74791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:42,200 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 48411 states to 48411 states and 74791 transitions.
[2024-11-13 16:24:42,203 INFO  L78                 Accepts]: Start accepts. Automaton has 48411 states and 74791 transitions. Word has length 109
[2024-11-13 16:24:42,204 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:42,204 INFO  L471      AbstractCegarLoop]: Abstraction has 48411 states and 74791 transitions.
[2024-11-13 16:24:42,204 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:42,204 INFO  L276                IsEmpty]: Start isEmpty. Operand 48411 states and 74791 transitions.
[2024-11-13 16:24:42,206 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2024-11-13 16:24:42,207 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:42,207 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:24:42,207 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-13 16:24:42,207 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:42,208 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:42,208 INFO  L85        PathProgramCache]: Analyzing trace with hash 1178527389, now seen corresponding path program 1 times
[2024-11-13 16:24:42,208 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:42,208 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613122006]
[2024-11-13 16:24:42,208 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:42,208 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:42,249 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:42,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-13 16:24:42,397 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:42,397 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613122006]
[2024-11-13 16:24:42,397 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613122006] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:42,397 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:42,398 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:24:42,398 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610267913]
[2024-11-13 16:24:42,398 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:42,399 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:24:42,399 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:42,399 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:24:42,400 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:24:42,400 INFO  L87              Difference]: Start difference. First operand 48411 states and 74791 transitions. Second operand  has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:43,495 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:43,496 INFO  L93              Difference]: Finished difference Result 79154 states and 122950 transitions.
[2024-11-13 16:24:43,496 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:24:43,496 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 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 110
[2024-11-13 16:24:43,497 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:43,640 INFO  L225             Difference]: With dead ends: 79154
[2024-11-13 16:24:43,640 INFO  L226             Difference]: Without dead ends: 62976
[2024-11-13 16:24:43,666 INFO  L431           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
[2024-11-13 16:24:43,666 INFO  L432           NwaCegarLoop]: 310 mSDtfsCounter, 187 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:43,667 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 678 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:43,720 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62976 states.
[2024-11-13 16:24:45,425 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62976 to 61372.
[2024-11-13 16:24:45,461 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 61372 states, 61371 states have (on average 1.5451434716722883) internal successors, (94827), 61371 states have internal predecessors, (94827), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:45,583 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 61372 states to 61372 states and 94827 transitions.
[2024-11-13 16:24:45,587 INFO  L78                 Accepts]: Start accepts. Automaton has 61372 states and 94827 transitions. Word has length 110
[2024-11-13 16:24:45,587 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:45,588 INFO  L471      AbstractCegarLoop]: Abstraction has 61372 states and 94827 transitions.
[2024-11-13 16:24:45,588 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:45,588 INFO  L276                IsEmpty]: Start isEmpty. Operand 61372 states and 94827 transitions.
[2024-11-13 16:24:45,590 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2024-11-13 16:24:45,590 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:45,591 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:24:45,591 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-13 16:24:45,591 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:45,592 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:45,592 INFO  L85        PathProgramCache]: Analyzing trace with hash 1601229215, now seen corresponding path program 1 times
[2024-11-13 16:24:45,592 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:45,592 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466524484]
[2024-11-13 16:24:45,592 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:45,592 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:45,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:45,699 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-13 16:24:45,699 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:45,699 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466524484]
[2024-11-13 16:24:45,700 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466524484] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:45,700 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:45,700 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:24:45,700 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144997266]
[2024-11-13 16:24:45,700 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:45,700 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:24:45,701 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:45,701 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:24:45,701 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:45,702 INFO  L87              Difference]: Start difference. First operand 61372 states and 94827 transitions. Second operand  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:47,614 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:47,614 INFO  L93              Difference]: Finished difference Result 132988 states and 206196 transitions.
[2024-11-13 16:24:47,615 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 16:24:47,615 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 110
[2024-11-13 16:24:47,615 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:47,816 INFO  L225             Difference]: With dead ends: 132988
[2024-11-13 16:24:47,817 INFO  L226             Difference]: Without dead ends: 103954
[2024-11-13 16:24:47,846 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:47,849 INFO  L432           NwaCegarLoop]: 198 mSDtfsCounter, 81 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:47,849 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 368 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:47,930 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 103954 states.
[2024-11-13 16:24:50,136 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 103954 to 103676.
[2024-11-13 16:24:50,220 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 103676 states, 103675 states have (on average 1.5447986496262358) internal successors, (160157), 103675 states have internal predecessors, (160157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:50,543 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 103676 states to 103676 states and 160157 transitions.
[2024-11-13 16:24:50,548 INFO  L78                 Accepts]: Start accepts. Automaton has 103676 states and 160157 transitions. Word has length 110
[2024-11-13 16:24:50,549 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:50,549 INFO  L471      AbstractCegarLoop]: Abstraction has 103676 states and 160157 transitions.
[2024-11-13 16:24:50,549 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:50,550 INFO  L276                IsEmpty]: Start isEmpty. Operand 103676 states and 160157 transitions.
[2024-11-13 16:24:50,553 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-13 16:24:50,553 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:50,554 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:24:50,554 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-13 16:24:50,554 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:50,554 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:50,555 INFO  L85        PathProgramCache]: Analyzing trace with hash -1317319656, now seen corresponding path program 1 times
[2024-11-13 16:24:50,555 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:50,555 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230493372]
[2024-11-13 16:24:50,555 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:50,555 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:50,598 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:50,774 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-13 16:24:50,774 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:50,775 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230493372]
[2024-11-13 16:24:50,776 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230493372] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:50,776 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:50,776 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:24:50,776 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136547919]
[2024-11-13 16:24:50,777 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:50,777 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:24:50,777 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:50,779 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:24:50,779 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:24:50,780 INFO  L87              Difference]: Start difference. First operand 103676 states and 160157 transitions. Second operand  has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:52,741 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:52,741 INFO  L93              Difference]: Finished difference Result 158887 states and 246384 transitions.
[2024-11-13 16:24:52,741 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:24:52,742 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 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 111
[2024-11-13 16:24:52,742 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:52,971 INFO  L225             Difference]: With dead ends: 158887
[2024-11-13 16:24:52,972 INFO  L226             Difference]: Without dead ends: 128825
[2024-11-13 16:24:53,011 INFO  L431           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
[2024-11-13 16:24:53,012 INFO  L432           NwaCegarLoop]: 307 mSDtfsCounter, 192 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:53,013 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 675 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-13 16:24:53,116 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 128825 states.
[2024-11-13 16:24:55,690 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 128825 to 122437.
[2024-11-13 16:24:55,751 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 122437 states, 122436 states have (on average 1.5437208010715802) internal successors, (189007), 122436 states have internal predecessors, (189007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:55,952 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 122437 states to 122437 states and 189007 transitions.
[2024-11-13 16:24:55,957 INFO  L78                 Accepts]: Start accepts. Automaton has 122437 states and 189007 transitions. Word has length 111
[2024-11-13 16:24:55,958 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:24:55,958 INFO  L471      AbstractCegarLoop]: Abstraction has 122437 states and 189007 transitions.
[2024-11-13 16:24:55,958 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:55,958 INFO  L276                IsEmpty]: Start isEmpty. Operand 122437 states and 189007 transitions.
[2024-11-13 16:24:55,961 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-13 16:24:55,961 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:24:55,961 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:24:55,961 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-13 16:24:55,961 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:24:55,962 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:24:55,962 INFO  L85        PathProgramCache]: Analyzing trace with hash 1956579286, now seen corresponding path program 1 times
[2024-11-13 16:24:55,962 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:24:55,962 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69230662]
[2024-11-13 16:24:55,962 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:24:55,962 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:24:56,005 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:24:56,079 INFO  L134       CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-13 16:24:56,079 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:24:56,079 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69230662]
[2024-11-13 16:24:56,079 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69230662] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:24:56,080 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:24:56,080 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:24:56,080 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637705485]
[2024-11-13 16:24:56,080 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:24:56,081 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:24:56,081 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:24:56,081 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:24:56,081 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:56,082 INFO  L87              Difference]: Start difference. First operand 122437 states and 189007 transitions. Second operand  has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:24:59,065 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:24:59,065 INFO  L93              Difference]: Finished difference Result 259823 states and 401914 transitions.
[2024-11-13 16:24:59,066 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 16:24:59,066 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 111
[2024-11-13 16:24:59,066 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:24:59,405 INFO  L225             Difference]: With dead ends: 259823
[2024-11-13 16:24:59,405 INFO  L226             Difference]: Without dead ends: 201641
[2024-11-13 16:24:59,479 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:24:59,481 INFO  L432           NwaCegarLoop]: 196 mSDtfsCounter, 81 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:24:59,481 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 367 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:24:59,678 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 201641 states.
[2024-11-13 16:25:03,638 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 201641 to 201111.
[2024-11-13 16:25:03,725 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 201111 states, 201110 states have (on average 1.5416687385013177) internal successors, (310045), 201110 states have internal predecessors, (310045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:25:04,229 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201111 states to 201111 states and 310045 transitions.
[2024-11-13 16:25:04,236 INFO  L78                 Accepts]: Start accepts. Automaton has 201111 states and 310045 transitions. Word has length 111
[2024-11-13 16:25:04,237 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:25:04,237 INFO  L471      AbstractCegarLoop]: Abstraction has 201111 states and 310045 transitions.
[2024-11-13 16:25:04,237 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:25:04,237 INFO  L276                IsEmpty]: Start isEmpty. Operand 201111 states and 310045 transitions.
[2024-11-13 16:25:04,240 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-11-13 16:25:04,240 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:25:04,240 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:25:04,241 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-13 16:25:04,241 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:25:04,241 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:25:04,241 INFO  L85        PathProgramCache]: Analyzing trace with hash -694621549, now seen corresponding path program 1 times
[2024-11-13 16:25:04,241 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:25:04,241 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360281141]
[2024-11-13 16:25:04,242 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:25:04,242 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:25:04,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:25:04,376 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:25:04,376 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:25:04,377 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360281141]
[2024-11-13 16:25:04,377 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360281141] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:25:04,377 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:25:04,377 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 16:25:04,377 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369419905]
[2024-11-13 16:25:04,377 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:25:04,378 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 16:25:04,378 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:25:04,379 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 16:25:04,379 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:25:04,379 INFO  L87              Difference]: Start difference. First operand 201111 states and 310045 transitions. Second operand  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:25:10,307 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:25:10,307 INFO  L93              Difference]: Finished difference Result 599120 states and 921764 transitions.
[2024-11-13 16:25:10,307 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 16:25:10,308 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 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 111
[2024-11-13 16:25:10,308 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:25:11,045 INFO  L225             Difference]: With dead ends: 599120
[2024-11-13 16:25:11,045 INFO  L226             Difference]: Without dead ends: 398081
[2024-11-13 16:25:11,192 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 16:25:11,193 INFO  L432           NwaCegarLoop]: 258 mSDtfsCounter, 132 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:25:11,193 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 452 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:25:11,521 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 398081 states.