./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem13_label38.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_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/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_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem13_label38.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/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_30c2a2a4-21c1-44fc-84e6-b396d7944132/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 d34933a1b994b8e38d771072f952fdcb97af91d6a5c53e5f6f0249e635acf216
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 14:01:41,704 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-13 14:01:41,793 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-13 14:01:41,802 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 14:01:41,802 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 14:01:41,832 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 14:01:41,833 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 14:01:41,833 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 14:01:41,834 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 14:01:41,834 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-13 14:01:41,834 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 14:01:41,834 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 14:01:41,835 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 14:01:41,835 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-13 14:01:41,835 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-13 14:01:41,835 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 14:01:41,835 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-13 14:01:41,835 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-13 14:01:41,836 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-13 14:01:41,836 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-13 14:01:41,836 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-13 14:01:41,836 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 14:01:41,836 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 14:01:41,836 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 14:01:41,836 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-13 14:01:41,837 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-13 14:01:41,837 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-13 14:01:41,837 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-13 14:01:41,837 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 14:01:41,837 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-13 14:01:41,837 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 14:01:41,837 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-13 14:01:41,838 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 14:01:41,838 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 14:01:41,838 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 14:01:41,838 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 14:01:41,838 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-13 14:01:41,838 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-13 14:01:41,838 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 14:01:41,838 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 14:01:41,838 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 14:01:41,838 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 14:01:41,838 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_30c2a2a4-21c1-44fc-84e6-b396d7944132/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 -> d34933a1b994b8e38d771072f952fdcb97af91d6a5c53e5f6f0249e635acf216
[2024-11-13 14:01:42,156 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 14:01:42,165 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 14:01:42,167 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 14:01:42,169 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-13 14:01:42,169 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-13 14:01:42,171 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem13_label38.c
Unable to find full path for "g++"
[2024-11-13 14:01:44,112 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-13 14:01:44,955 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-13 14:01:44,956 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/sv-benchmarks/c/eca-rers2012/Problem13_label38.c
[2024-11-13 14:01:45,023 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/data/203f35d81/691faceb862d4a938dd7f715d78fdf1c/FLAG4a4bdfb05
[2024-11-13 14:01:45,049 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/data/203f35d81/691faceb862d4a938dd7f715d78fdf1c
[2024-11-13 14:01:45,053 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 14:01:45,057 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 14:01:45,061 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 14:01:45,062 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 14:01:45,069 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 14:01:45,070 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:01:45" (1/1) ...
[2024-11-13 14:01:45,071 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 02:01:45, skipping insertion in model container
[2024-11-13 14:01:45,072 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:01:45" (1/1) ...
[2024-11-13 14:01:45,243 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-13 14:01:45,539 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_30c2a2a4-21c1-44fc-84e6-b396d7944132/sv-benchmarks/c/eca-rers2012/Problem13_label38.c[8378,8391]
[2024-11-13 14:01:46,592 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 14:01:46,612 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-13 14:01:46,650 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_30c2a2a4-21c1-44fc-84e6-b396d7944132/sv-benchmarks/c/eca-rers2012/Problem13_label38.c[8378,8391]
[2024-11-13 14:01:47,265 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 14:01:47,307 INFO  L204         MainTranslator]: Completed translation
[2024-11-13 14:01:47,308 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47 WrapperNode
[2024-11-13 14:01:47,308 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 14:01:47,310 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 14:01:47,311 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 14:01:47,311 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 14:01:47,319 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:47,398 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:48,074 INFO  L138                Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586
[2024-11-13 14:01:48,074 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 14:01:48,075 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 14:01:48,078 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 14:01:48,078 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 14:01:48,090 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:48,090 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:48,314 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:48,873 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 14:01:48,874 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:48,874 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:49,248 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:49,302 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:49,335 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:49,362 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:49,470 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 14:01:49,472 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 14:01:49,473 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 14:01:49,473 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-13 14:01:49,475 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (1/1) ...
[2024-11-13 14:01:49,484 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 14:01:49,498 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 14:01:49,519 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 14:01:49,526 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 14:01:49,557 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 14:01:49,557 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-13 14:01:49,557 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 14:01:49,557 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 14:01:49,674 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-13 14:01:49,676 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 14:01:59,261 INFO  L?                        ?]: Removed 738 outVars from TransFormulas that were not future-live.
[2024-11-13 14:01:59,261 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-13 14:01:59,323 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 14:01:59,323 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 14:01:59,324 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:01:59 BoogieIcfgContainer
[2024-11-13 14:01:59,324 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 14:01:59,332 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 14:01:59,333 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 14:01:59,338 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-13 14:01:59,339 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:01:45" (1/3) ...
[2024-11-13 14:01:59,339 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc08f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:01:59, skipping insertion in model container
[2024-11-13 14:01:59,340 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:01:47" (2/3) ...
[2024-11-13 14:01:59,340 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc08f44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:01:59, skipping insertion in model container
[2024-11-13 14:01:59,341 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:01:59" (3/3) ...
[2024-11-13 14:01:59,342 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem13_label38.c
[2024-11-13 14:01:59,364 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 14:01:59,369 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to ICFG Problem13_label38.c that has 1 procedures, 1098 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 14:01:59,505 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 14:01:59,524 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;@3861aaba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 14:01:59,525 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 14:01:59,538 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 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 14:01:59,549 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 60
[2024-11-13 14:01:59,549 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:01:59,551 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]
[2024-11-13 14:01:59,552 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:01:59,557 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:01:59,559 INFO  L85        PathProgramCache]: Analyzing trace with hash 1470937056, now seen corresponding path program 1 times
[2024-11-13 14:01:59,568 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:01:59,569 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906004354]
[2024-11-13 14:01:59,569 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:01:59,571 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:01:59,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:02:00,163 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 14:02:00,167 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:02:00,167 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906004354]
[2024-11-13 14:02:00,168 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906004354] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:02:00,168 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:02:00,170 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 14:02:00,172 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888016476]
[2024-11-13 14:02:00,174 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:02:00,181 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:02:00,183 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:02:00,211 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:02:00,212 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:02:00,219 INFO  L87              Difference]: Start difference. First operand  has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 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 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 14:02:07,439 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:02:07,440 INFO  L93              Difference]: Finished difference Result 3035 states and 5643 transitions.
[2024-11-13 14:02:07,442 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:02:07,444 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 59
[2024-11-13 14:02:07,444 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:02:07,471 INFO  L225             Difference]: With dead ends: 3035
[2024-11-13 14:02:07,471 INFO  L226             Difference]: Without dead ends: 1873
[2024-11-13 14:02:07,478 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:02:07,487 INFO  L432           NwaCegarLoop]: 989 mSDtfsCounter, 846 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 3363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time
[2024-11-13 14:02:07,488 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 1143 Invalid, 3363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [858 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time]
[2024-11-13 14:02:07,519 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1873 states.
[2024-11-13 14:02:07,631 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1859.
[2024-11-13 14:02:07,638 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1859 states, 1858 states have (on average 1.5441334768568353) internal successors, (2869), 1858 states have internal predecessors, (2869), 0 states have call successors, (0), 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 14:02:07,655 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2869 transitions.
[2024-11-13 14:02:07,657 INFO  L78                 Accepts]: Start accepts. Automaton has 1859 states and 2869 transitions. Word has length 59
[2024-11-13 14:02:07,657 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:02:07,659 INFO  L471      AbstractCegarLoop]: Abstraction has 1859 states and 2869 transitions.
[2024-11-13 14:02:07,659 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 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 14:02:07,659 INFO  L276                IsEmpty]: Start isEmpty. Operand 1859 states and 2869 transitions.
[2024-11-13 14:02:07,665 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2024-11-13 14:02:07,665 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:02:07,669 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 14:02:07,670 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-13 14:02:07,670 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:02:07,671 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:02:07,671 INFO  L85        PathProgramCache]: Analyzing trace with hash -1607101356, now seen corresponding path program 1 times
[2024-11-13 14:02:07,671 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:02:07,671 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523711511]
[2024-11-13 14:02:07,671 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:02:07,672 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:02:07,828 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:02:08,263 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 14:02:08,265 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:02:08,265 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523711511]
[2024-11-13 14:02:08,266 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523711511] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:02:08,266 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:02:08,267 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 14:02:08,267 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148566779]
[2024-11-13 14:02:08,267 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:02:08,269 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:02:08,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:02:08,271 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:02:08,272 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:02:08,272 INFO  L87              Difference]: Start difference. First operand 1859 states and 2869 transitions. Second operand  has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 14:02:15,573 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:02:15,573 INFO  L93              Difference]: Finished difference Result 5405 states and 8404 transitions.
[2024-11-13 14:02:15,574 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:02:15,574 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 131
[2024-11-13 14:02:15,575 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:02:15,594 INFO  L225             Difference]: With dead ends: 5405
[2024-11-13 14:02:15,595 INFO  L226             Difference]: Without dead ends: 3548
[2024-11-13 14:02:15,599 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:02:15,600 INFO  L432           NwaCegarLoop]: 905 mSDtfsCounter, 862 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 3343 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 1039 SdHoareTripleChecker+Invalid, 3785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 3343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time
[2024-11-13 14:02:15,601 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 1039 Invalid, 3785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 3343 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time]
[2024-11-13 14:02:15,607 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3548 states.
[2024-11-13 14:02:15,710 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3548 to 3476.
[2024-11-13 14:02:15,718 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3476 states, 3475 states have (on average 1.4897841726618706) internal successors, (5177), 3475 states have internal predecessors, (5177), 0 states have call successors, (0), 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 14:02:15,732 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3476 states to 3476 states and 5177 transitions.
[2024-11-13 14:02:15,733 INFO  L78                 Accepts]: Start accepts. Automaton has 3476 states and 5177 transitions. Word has length 131
[2024-11-13 14:02:15,735 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:02:15,736 INFO  L471      AbstractCegarLoop]: Abstraction has 3476 states and 5177 transitions.
[2024-11-13 14:02:15,737 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 14:02:15,737 INFO  L276                IsEmpty]: Start isEmpty. Operand 3476 states and 5177 transitions.
[2024-11-13 14:02:15,745 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 146
[2024-11-13 14:02:15,745 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:02:15,748 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:02:15,748 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-13 14:02:15,748 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:02:15,749 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:02:15,749 INFO  L85        PathProgramCache]: Analyzing trace with hash -1600660795, now seen corresponding path program 1 times
[2024-11-13 14:02:15,749 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:02:15,749 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896626106]
[2024-11-13 14:02:15,750 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:02:15,750 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:02:15,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:02:16,919 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 14:02:16,921 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:02:16,921 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896626106]
[2024-11-13 14:02:16,921 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896626106] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:02:16,921 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:02:16,922 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:02:16,922 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581678766]
[2024-11-13 14:02:16,922 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:02:16,922 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 14:02:16,924 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:02:16,925 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 14:02:16,926 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 14:02:16,926 INFO  L87              Difference]: Start difference. First operand 3476 states and 5177 transitions. Second operand  has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 14:02:26,759 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:02:26,759 INFO  L93              Difference]: Finished difference Result 9350 states and 13616 transitions.
[2024-11-13 14:02:26,759 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 14:02:26,760 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 145
[2024-11-13 14:02:26,760 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:02:26,787 INFO  L225             Difference]: With dead ends: 9350
[2024-11-13 14:02:26,787 INFO  L226             Difference]: Without dead ends: 5876
[2024-11-13 14:02:26,792 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 14:02:26,793 INFO  L432           NwaCegarLoop]: 1097 mSDtfsCounter, 2263 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 5762 mSolverCounterSat, 490 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 6252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 5762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time
[2024-11-13 14:02:26,794 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [2263 Valid, 1364 Invalid, 6252 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [490 Valid, 5762 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time]
[2024-11-13 14:02:26,803 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5876 states.
[2024-11-13 14:02:26,922 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5876 to 5849.
[2024-11-13 14:02:26,935 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5849 states, 5848 states have (on average 1.3339603283173735) internal successors, (7801), 5848 states have internal predecessors, (7801), 0 states have call successors, (0), 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 14:02:26,958 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5849 states to 5849 states and 7801 transitions.
[2024-11-13 14:02:26,959 INFO  L78                 Accepts]: Start accepts. Automaton has 5849 states and 7801 transitions. Word has length 145
[2024-11-13 14:02:26,959 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:02:26,959 INFO  L471      AbstractCegarLoop]: Abstraction has 5849 states and 7801 transitions.
[2024-11-13 14:02:26,960 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 36.25) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 14:02:26,960 INFO  L276                IsEmpty]: Start isEmpty. Operand 5849 states and 7801 transitions.
[2024-11-13 14:02:26,962 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 156
[2024-11-13 14:02:26,962 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:02:26,966 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:02:26,967 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-13 14:02:26,967 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:02:26,968 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:02:26,968 INFO  L85        PathProgramCache]: Analyzing trace with hash -1192532706, now seen corresponding path program 1 times
[2024-11-13 14:02:26,968 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:02:26,968 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117972747]
[2024-11-13 14:02:26,969 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:02:26,969 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:02:27,035 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:02:27,257 INFO  L134       CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 14:02:27,260 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:02:27,260 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117972747]
[2024-11-13 14:02:27,260 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117972747] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:02:27,260 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:02:27,260 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:02:27,260 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309069182]
[2024-11-13 14:02:27,261 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:02:27,261 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:02:27,261 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:02:27,262 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:02:27,262 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:02:27,262 INFO  L87              Difference]: Start difference. First operand 5849 states and 7801 transitions. Second operand  has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 14:02:32,678 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:02:32,678 INFO  L93              Difference]: Finished difference Result 11717 states and 16824 transitions.
[2024-11-13 14:02:32,679 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:02:32,679 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 155
[2024-11-13 14:02:32,680 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:02:32,703 INFO  L225             Difference]: With dead ends: 11717
[2024-11-13 14:02:32,703 INFO  L226             Difference]: Without dead ends: 6657
[2024-11-13 14:02:32,711 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 14:02:32,712 INFO  L432           NwaCegarLoop]: 806 mSDtfsCounter, 914 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 2384 mSolverCounterSat, 932 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 3316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 932 IncrementalHoareTripleChecker+Valid, 2384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time
[2024-11-13 14:02:32,713 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 928 Invalid, 3316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [932 Valid, 2384 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time]
[2024-11-13 14:02:32,723 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6657 states.
[2024-11-13 14:02:32,850 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6657 to 6648.
[2024-11-13 14:02:32,865 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6648 states, 6647 states have (on average 1.3583571536031291) internal successors, (9029), 6647 states have internal predecessors, (9029), 0 states have call successors, (0), 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 14:02:32,889 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6648 states to 6648 states and 9029 transitions.
[2024-11-13 14:02:32,889 INFO  L78                 Accepts]: Start accepts. Automaton has 6648 states and 9029 transitions. Word has length 155
[2024-11-13 14:02:32,890 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:02:32,890 INFO  L471      AbstractCegarLoop]: Abstraction has 6648 states and 9029 transitions.
[2024-11-13 14:02:32,891 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 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 14:02:32,891 INFO  L276                IsEmpty]: Start isEmpty. Operand 6648 states and 9029 transitions.
[2024-11-13 14:02:32,895 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 221
[2024-11-13 14:02:32,895 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:02:32,896 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-13 14:02:32,896 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-13 14:02:32,896 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:02:32,897 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:02:32,897 INFO  L85        PathProgramCache]: Analyzing trace with hash -1852564004, now seen corresponding path program 1 times
[2024-11-13 14:02:32,897 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:02:32,897 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924503453]
[2024-11-13 14:02:32,897 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:02:32,898 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:02:32,999 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:02:33,711 INFO  L134       CoverageAnalysis]: Checked inductivity of 177 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked.
[2024-11-13 14:02:33,713 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:02:33,713 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924503453]
[2024-11-13 14:02:33,713 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924503453] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:02:33,713 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:02:33,713 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 14:02:33,713 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815855451]
[2024-11-13 14:02:33,713 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:02:33,718 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:02:33,718 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:02:33,721 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:02:33,721 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:02:33,722 INFO  L87              Difference]: Start difference. First operand 6648 states and 9029 transitions. Second operand  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 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 14:02:39,812 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:02:39,812 INFO  L93              Difference]: Finished difference Result 18028 states and 25032 transitions.
[2024-11-13 14:02:39,813 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:02:39,813 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 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 220
[2024-11-13 14:02:39,814 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:02:39,853 INFO  L225             Difference]: With dead ends: 18028
[2024-11-13 14:02:39,853 INFO  L226             Difference]: Without dead ends: 12169
[2024-11-13 14:02:39,860 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:02:39,861 INFO  L432           NwaCegarLoop]: 854 mSDtfsCounter, 888 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 876 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 3186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 876 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time
[2024-11-13 14:02:39,861 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 1007 Invalid, 3186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [876 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time]
[2024-11-13 14:02:39,877 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12169 states.
[2024-11-13 14:02:40,075 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12169 to 12168.
[2024-11-13 14:02:40,102 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12168 states, 12167 states have (on average 1.2594723432234733) internal successors, (15324), 12167 states have internal predecessors, (15324), 0 states have call successors, (0), 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 14:02:40,134 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12168 states to 12168 states and 15324 transitions.
[2024-11-13 14:02:40,135 INFO  L78                 Accepts]: Start accepts. Automaton has 12168 states and 15324 transitions. Word has length 220
[2024-11-13 14:02:40,135 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:02:40,136 INFO  L471      AbstractCegarLoop]: Abstraction has 12168 states and 15324 transitions.
[2024-11-13 14:02:40,136 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 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 14:02:40,136 INFO  L276                IsEmpty]: Start isEmpty. Operand 12168 states and 15324 transitions.
[2024-11-13 14:02:40,141 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 245
[2024-11-13 14:02:40,141 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:02:40,141 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 14:02:40,142 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-13 14:02:40,142 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:02:40,143 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:02:40,143 INFO  L85        PathProgramCache]: Analyzing trace with hash -671544168, now seen corresponding path program 1 times
[2024-11-13 14:02:40,143 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:02:40,143 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116798222]
[2024-11-13 14:02:40,143 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:02:40,144 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:02:40,219 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:02:40,472 INFO  L134       CoverageAnalysis]: Checked inductivity of 201 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked.
[2024-11-13 14:02:40,474 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:02:40,474 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116798222]
[2024-11-13 14:02:40,474 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116798222] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:02:40,474 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:02:40,475 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:02:40,475 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562769208]
[2024-11-13 14:02:40,475 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:02:40,475 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:02:40,476 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:02:40,476 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:02:40,476 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:02:40,477 INFO  L87              Difference]: Start difference. First operand 12168 states and 15324 transitions. Second operand  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 14:02:46,255 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:02:46,255 INFO  L93              Difference]: Finished difference Result 26725 states and 34720 transitions.
[2024-11-13 14:02:46,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:02:46,256 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 244
[2024-11-13 14:02:46,257 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:02:46,317 INFO  L225             Difference]: With dead ends: 26725
[2024-11-13 14:02:46,317 INFO  L226             Difference]: Without dead ends: 15346
[2024-11-13 14:02:46,329 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 14:02:46,330 INFO  L432           NwaCegarLoop]: 763 mSDtfsCounter, 975 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 3401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 999 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2024-11-13 14:02:46,331 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 854 Invalid, 3401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2024-11-13 14:02:46,352 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15346 states.
[2024-11-13 14:02:46,573 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15346 to 15335.
[2024-11-13 14:02:46,612 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15335 states, 15334 states have (on average 1.2772270770836052) internal successors, (19585), 15334 states have internal predecessors, (19585), 0 states have call successors, (0), 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 14:02:46,653 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15335 states to 15335 states and 19585 transitions.
[2024-11-13 14:02:46,655 INFO  L78                 Accepts]: Start accepts. Automaton has 15335 states and 19585 transitions. Word has length 244
[2024-11-13 14:02:46,658 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:02:46,658 INFO  L471      AbstractCegarLoop]: Abstraction has 15335 states and 19585 transitions.
[2024-11-13 14:02:46,659 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 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 14:02:46,660 INFO  L276                IsEmpty]: Start isEmpty. Operand 15335 states and 19585 transitions.
[2024-11-13 14:02:46,668 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 247
[2024-11-13 14:02:46,671 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:02:46,671 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 14:02:46,671 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-13 14:02:46,672 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:02:46,672 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:02:46,672 INFO  L85        PathProgramCache]: Analyzing trace with hash 1411062525, now seen corresponding path program 1 times
[2024-11-13 14:02:46,673 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:02:46,673 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044359713]
[2024-11-13 14:02:46,673 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:02:46,673 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:02:46,751 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:02:47,001 INFO  L134       CoverageAnalysis]: Checked inductivity of 203 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked.
[2024-11-13 14:02:47,002 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:02:47,003 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044359713]
[2024-11-13 14:02:47,003 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044359713] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:02:47,003 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:02:47,003 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-13 14:02:47,003 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562858433]
[2024-11-13 14:02:47,003 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:02:47,004 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:02:47,004 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:02:47,005 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:02:47,005 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:02:47,005 INFO  L87              Difference]: Start difference. First operand 15335 states and 19585 transitions. Second operand  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 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 14:02:53,221 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:02:53,222 INFO  L93              Difference]: Finished difference Result 43282 states and 55811 transitions.
[2024-11-13 14:02:53,222 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:02:53,222 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 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 246
[2024-11-13 14:02:53,223 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:02:53,309 INFO  L225             Difference]: With dead ends: 43282
[2024-11-13 14:02:53,309 INFO  L226             Difference]: Without dead ends: 28736
[2024-11-13 14:02:53,329 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:02:53,330 INFO  L432           NwaCegarLoop]: 779 mSDtfsCounter, 915 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 2560 mSolverCounterSat, 765 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 2560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2024-11-13 14:02:53,330 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 910 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 2560 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time]
[2024-11-13 14:02:53,362 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28736 states.
[2024-11-13 14:02:53,870 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28736 to 27151.
[2024-11-13 14:02:53,908 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27151 states, 27150 states have (on average 1.2157274401473297) internal successors, (33007), 27150 states have internal predecessors, (33007), 0 states have call successors, (0), 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 14:02:53,955 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27151 states to 27151 states and 33007 transitions.
[2024-11-13 14:02:53,956 INFO  L78                 Accepts]: Start accepts. Automaton has 27151 states and 33007 transitions. Word has length 246
[2024-11-13 14:02:53,956 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:02:53,957 INFO  L471      AbstractCegarLoop]: Abstraction has 27151 states and 33007 transitions.
[2024-11-13 14:02:53,957 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 2 states have internal predecessors, (157), 0 states have call successors, (0), 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 14:02:53,957 INFO  L276                IsEmpty]: Start isEmpty. Operand 27151 states and 33007 transitions.
[2024-11-13 14:02:53,965 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 322
[2024-11-13 14:02:53,965 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:02:53,966 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:02:53,966 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-13 14:02:53,966 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:02:53,967 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:02:53,967 INFO  L85        PathProgramCache]: Analyzing trace with hash -1626867044, now seen corresponding path program 1 times
[2024-11-13 14:02:53,967 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:02:53,967 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235095311]
[2024-11-13 14:02:53,968 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:02:53,968 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:02:54,060 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:02:54,688 INFO  L134       CoverageAnalysis]: Checked inductivity of 208 backedges. 208 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 14:02:54,688 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:02:54,689 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235095311]
[2024-11-13 14:02:54,689 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235095311] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:02:54,689 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:02:54,689 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:02:54,689 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013762099]
[2024-11-13 14:02:54,689 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:02:54,690 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 14:02:54,690 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:02:54,690 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 14:02:54,691 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-13 14:02:54,691 INFO  L87              Difference]: Start difference. First operand 27151 states and 33007 transitions. Second operand  has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 14:03:02,302 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:03:02,303 INFO  L93              Difference]: Finished difference Result 54316 states and 66052 transitions.
[2024-11-13 14:03:02,303 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 14:03:02,304 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 321
[2024-11-13 14:03:02,304 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:03:02,372 INFO  L225             Difference]: With dead ends: 54316
[2024-11-13 14:03:02,373 INFO  L226             Difference]: Without dead ends: 27954
[2024-11-13 14:03:02,395 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 14:03:02,396 INFO  L432           NwaCegarLoop]: 795 mSDtfsCounter, 1656 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 4297 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1656 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 5061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 4297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time
[2024-11-13 14:03:02,396 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1656 Valid, 945 Invalid, 5061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [764 Valid, 4297 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time]
[2024-11-13 14:03:02,425 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27954 states.
[2024-11-13 14:03:02,720 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27954 to 27151.
[2024-11-13 14:03:02,753 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27151 states, 27150 states have (on average 1.203720073664825) internal successors, (32681), 27150 states have internal predecessors, (32681), 0 states have call successors, (0), 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 14:03:02,801 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27151 states to 27151 states and 32681 transitions.
[2024-11-13 14:03:02,802 INFO  L78                 Accepts]: Start accepts. Automaton has 27151 states and 32681 transitions. Word has length 321
[2024-11-13 14:03:02,803 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:03:02,805 INFO  L471      AbstractCegarLoop]: Abstraction has 27151 states and 32681 transitions.
[2024-11-13 14:03:02,806 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 80.25) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 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 14:03:02,806 INFO  L276                IsEmpty]: Start isEmpty. Operand 27151 states and 32681 transitions.
[2024-11-13 14:03:02,815 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 348
[2024-11-13 14:03:02,816 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:03:02,816 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 14:03:02,816 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-13 14:03:02,817 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:03:02,817 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:03:02,818 INFO  L85        PathProgramCache]: Analyzing trace with hash -1945182047, now seen corresponding path program 1 times
[2024-11-13 14:03:02,818 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:03:02,818 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293919435]
[2024-11-13 14:03:02,818 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:03:02,818 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:03:03,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:03:03,337 INFO  L134       CoverageAnalysis]: Checked inductivity of 442 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2024-11-13 14:03:03,337 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:03:03,337 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293919435]
[2024-11-13 14:03:03,337 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293919435] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:03:03,337 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:03:03,338 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:03:03,338 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862065975]
[2024-11-13 14:03:03,338 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:03:03,338 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:03:03,338 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:03:03,339 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:03:03,340 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:03:03,341 INFO  L87              Difference]: Start difference. First operand 27151 states and 32681 transitions. Second operand  has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 14:03:09,272 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:03:09,272 INFO  L93              Difference]: Finished difference Result 77900 states and 94220 transitions.
[2024-11-13 14:03:09,273 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:03:09,274 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 347
[2024-11-13 14:03:09,275 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:03:09,359 INFO  L225             Difference]: With dead ends: 77900
[2024-11-13 14:03:09,359 INFO  L226             Difference]: Without dead ends: 46803
[2024-11-13 14:03:09,392 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 14:03:09,393 INFO  L432           NwaCegarLoop]: 1673 mSDtfsCounter, 966 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 2407 mSolverCounterSat, 812 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 2407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2024-11-13 14:03:09,393 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [966 Valid, 1811 Invalid, 3219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 2407 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2024-11-13 14:03:09,451 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46803 states.
[2024-11-13 14:03:10,135 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46803 to 46797.
[2024-11-13 14:03:10,189 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 46797 states, 46796 states have (on average 1.168027181810411) internal successors, (54659), 46796 states have internal predecessors, (54659), 0 states have call successors, (0), 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 14:03:10,268 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 46797 states to 46797 states and 54659 transitions.
[2024-11-13 14:03:10,269 INFO  L78                 Accepts]: Start accepts. Automaton has 46797 states and 54659 transitions. Word has length 347
[2024-11-13 14:03:10,270 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:03:10,270 INFO  L471      AbstractCegarLoop]: Abstraction has 46797 states and 54659 transitions.
[2024-11-13 14:03:10,271 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 14:03:10,271 INFO  L276                IsEmpty]: Start isEmpty. Operand 46797 states and 54659 transitions.
[2024-11-13 14:03:10,276 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 351
[2024-11-13 14:03:10,277 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:03:10,277 INFO  L215           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:03:10,279 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-13 14:03:10,280 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:03:10,280 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:03:10,280 INFO  L85        PathProgramCache]: Analyzing trace with hash -1637131275, now seen corresponding path program 1 times
[2024-11-13 14:03:10,280 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:03:10,281 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083465273]
[2024-11-13 14:03:10,281 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:03:10,281 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:03:10,512 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:03:11,208 INFO  L134       CoverageAnalysis]: Checked inductivity of 237 backedges. 237 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 14:03:11,212 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:03:11,212 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083465273]
[2024-11-13 14:03:11,213 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083465273] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:03:11,213 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:03:11,213 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:03:11,213 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975706823]
[2024-11-13 14:03:11,213 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:03:11,214 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 14:03:11,214 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:03:11,214 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 14:03:11,215 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-13 14:03:11,215 INFO  L87              Difference]: Start difference. First operand 46797 states and 54659 transitions. Second operand  has 4 states, 4 states have (on average 87.5) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 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 14:03:18,065 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:03:18,065 INFO  L93              Difference]: Finished difference Result 96741 states and 112710 transitions.
[2024-11-13 14:03:18,066 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 14:03:18,066 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 87.5) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 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 350
[2024-11-13 14:03:18,067 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:03:18,135 INFO  L225             Difference]: With dead ends: 96741
[2024-11-13 14:03:18,135 INFO  L226             Difference]: Without dead ends: 49944
[2024-11-13 14:03:18,173 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 14:03:18,174 INFO  L432           NwaCegarLoop]: 857 mSDtfsCounter, 1420 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 4705 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 5111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 4705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time
[2024-11-13 14:03:18,175 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 1156 Invalid, 5111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 4705 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time]
[2024-11-13 14:03:18,225 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49944 states.
[2024-11-13 14:03:19,170 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49944 to 49943.
[2024-11-13 14:03:19,258 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 49943 states, 49942 states have (on average 1.1480717632453645) internal successors, (57337), 49942 states have internal predecessors, (57337), 0 states have call successors, (0), 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 14:03:19,407 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 49943 states to 49943 states and 57337 transitions.
[2024-11-13 14:03:19,408 INFO  L78                 Accepts]: Start accepts. Automaton has 49943 states and 57337 transitions. Word has length 350
[2024-11-13 14:03:19,408 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:03:19,409 INFO  L471      AbstractCegarLoop]: Abstraction has 49943 states and 57337 transitions.
[2024-11-13 14:03:19,409 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 87.5) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 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 14:03:19,409 INFO  L276                IsEmpty]: Start isEmpty. Operand 49943 states and 57337 transitions.
[2024-11-13 14:03:19,426 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 376
[2024-11-13 14:03:19,429 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:03:19,430 INFO  L215           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:03:19,430 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-13 14:03:19,430 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:03:19,431 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:03:19,431 INFO  L85        PathProgramCache]: Analyzing trace with hash -1657737676, now seen corresponding path program 1 times
[2024-11-13 14:03:19,431 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:03:19,431 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141082506]
[2024-11-13 14:03:19,431 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:03:19,431 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:03:19,703 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:03:20,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 442 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2024-11-13 14:03:20,107 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:03:20,107 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141082506]
[2024-11-13 14:03:20,107 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141082506] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:03:20,107 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:03:20,108 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:03:20,108 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709123919]
[2024-11-13 14:03:20,108 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:03:20,108 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:03:20,109 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:03:20,109 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:03:20,109 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:03:20,110 INFO  L87              Difference]: Start difference. First operand 49943 states and 57337 transitions. Second operand  has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 14:03:25,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:03:25,093 INFO  L93              Difference]: Finished difference Result 110917 states and 128789 transitions.
[2024-11-13 14:03:25,093 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:03:25,093 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 375
[2024-11-13 14:03:25,094 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:03:25,150 INFO  L225             Difference]: With dead ends: 110917
[2024-11-13 14:03:25,150 INFO  L226             Difference]: Without dead ends: 61763
[2024-11-13 14:03:25,173 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 14:03:25,174 INFO  L432           NwaCegarLoop]: 1690 mSDtfsCounter, 803 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 2449 mSolverCounterSat, 643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 3092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 643 IncrementalHoareTripleChecker+Valid, 2449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2024-11-13 14:03:25,174 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 1834 Invalid, 3092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [643 Valid, 2449 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2024-11-13 14:03:25,222 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61763 states.
[2024-11-13 14:03:25,654 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61763 to 60961.
[2024-11-13 14:03:25,702 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60961 states, 60960 states have (on average 1.1322178477690288) internal successors, (69020), 60960 states have internal predecessors, (69020), 0 states have call successors, (0), 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 14:03:26,031 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60961 states to 60961 states and 69020 transitions.
[2024-11-13 14:03:26,036 INFO  L78                 Accepts]: Start accepts. Automaton has 60961 states and 69020 transitions. Word has length 375
[2024-11-13 14:03:26,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:03:26,036 INFO  L471      AbstractCegarLoop]: Abstraction has 60961 states and 69020 transitions.
[2024-11-13 14:03:26,036 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 14:03:26,037 INFO  L276                IsEmpty]: Start isEmpty. Operand 60961 states and 69020 transitions.
[2024-11-13 14:03:26,186 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 429
[2024-11-13 14:03:26,187 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:03:26,187 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 14:03:26,187 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-13 14:03:26,187 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:03:26,188 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:03:26,188 INFO  L85        PathProgramCache]: Analyzing trace with hash -122478911, now seen corresponding path program 1 times
[2024-11-13 14:03:26,189 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:03:26,189 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580531295]
[2024-11-13 14:03:26,189 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:03:26,189 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:03:26,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:03:27,760 INFO  L134       CoverageAnalysis]: Checked inductivity of 741 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked.
[2024-11-13 14:03:27,764 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:03:27,764 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580531295]
[2024-11-13 14:03:27,765 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580531295] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:03:27,765 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:03:27,765 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:03:27,765 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880609429]
[2024-11-13 14:03:27,765 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:03:27,766 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:03:27,766 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:03:27,767 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:03:27,767 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:03:27,768 INFO  L87              Difference]: Start difference. First operand 60961 states and 69020 transitions. Second operand  has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 14:03:32,856 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:03:32,857 INFO  L93              Difference]: Finished difference Result 121131 states and 137247 transitions.
[2024-11-13 14:03:32,857 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:03:32,857 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 428
[2024-11-13 14:03:32,858 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:03:32,925 INFO  L225             Difference]: With dead ends: 121131
[2024-11-13 14:03:32,925 INFO  L226             Difference]: Without dead ends: 60959
[2024-11-13 14:03:32,951 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 14:03:32,951 INFO  L432           NwaCegarLoop]: 1317 mSDtfsCounter, 1146 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 2334 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 2334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2024-11-13 14:03:32,952 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 1394 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 2334 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2024-11-13 14:03:32,994 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60959 states.
[2024-11-13 14:03:33,606 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60959 to 60958.
[2024-11-13 14:03:33,651 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60958 states, 60957 states have (on average 1.1067309742933544) internal successors, (67463), 60957 states have internal predecessors, (67463), 0 states have call successors, (0), 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 14:03:33,943 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60958 states to 60958 states and 67463 transitions.
[2024-11-13 14:03:33,943 INFO  L78                 Accepts]: Start accepts. Automaton has 60958 states and 67463 transitions. Word has length 428
[2024-11-13 14:03:33,944 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:03:33,944 INFO  L471      AbstractCegarLoop]: Abstraction has 60958 states and 67463 transitions.
[2024-11-13 14:03:33,945 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 14:03:33,945 INFO  L276                IsEmpty]: Start isEmpty. Operand 60958 states and 67463 transitions.
[2024-11-13 14:03:33,955 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 454
[2024-11-13 14:03:33,955 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:03:33,956 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 14:03:33,956 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-13 14:03:33,956 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:03:33,957 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:03:33,957 INFO  L85        PathProgramCache]: Analyzing trace with hash -847584903, now seen corresponding path program 1 times
[2024-11-13 14:03:33,957 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:03:33,957 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446524317]
[2024-11-13 14:03:33,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:03:33,958 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:03:34,066 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:03:34,624 INFO  L134       CoverageAnalysis]: Checked inductivity of 790 backedges. 585 proven. 0 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked.
[2024-11-13 14:03:34,625 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:03:34,625 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446524317]
[2024-11-13 14:03:34,625 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446524317] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:03:34,625 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:03:34,625 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:03:34,626 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144816661]
[2024-11-13 14:03:34,626 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:03:34,626 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 14:03:34,627 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:03:34,628 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 14:03:34,628 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-13 14:03:34,628 INFO  L87              Difference]: Start difference. First operand 60958 states and 67463 transitions. Second operand  has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 14:03:45,324 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:03:45,324 INFO  L93              Difference]: Finished difference Result 172477 states and 191372 transitions.
[2024-11-13 14:03:45,325 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 14:03:45,325 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 453
[2024-11-13 14:03:45,326 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:03:45,438 INFO  L225             Difference]: With dead ends: 172477
[2024-11-13 14:03:45,438 INFO  L226             Difference]: Without dead ends: 112308
[2024-11-13 14:03:45,463 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 14:03:45,464 INFO  L432           NwaCegarLoop]: 454 mSDtfsCounter, 1704 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 5713 mSolverCounterSat, 1075 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 6788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1075 IncrementalHoareTripleChecker+Valid, 5713 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time
[2024-11-13 14:03:45,464 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 641 Invalid, 6788 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1075 Valid, 5713 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time]
[2024-11-13 14:03:45,547 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 112308 states.
[2024-11-13 14:03:46,663 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 112308 to 112183.
[2024-11-13 14:03:46,736 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 112183 states, 112182 states have (on average 1.098643276104901) internal successors, (123248), 112182 states have internal predecessors, (123248), 0 states have call successors, (0), 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 14:03:46,905 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 112183 states to 112183 states and 123248 transitions.
[2024-11-13 14:03:46,906 INFO  L78                 Accepts]: Start accepts. Automaton has 112183 states and 123248 transitions. Word has length 453
[2024-11-13 14:03:46,906 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:03:46,906 INFO  L471      AbstractCegarLoop]: Abstraction has 112183 states and 123248 transitions.
[2024-11-13 14:03:46,906 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 76.75) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 14:03:46,907 INFO  L276                IsEmpty]: Start isEmpty. Operand 112183 states and 123248 transitions.
[2024-11-13 14:03:46,917 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 482
[2024-11-13 14:03:46,917 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:03:46,918 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-13 14:03:46,918 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-13 14:03:46,918 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:03:46,919 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:03:46,919 INFO  L85        PathProgramCache]: Analyzing trace with hash -1343900984, now seen corresponding path program 1 times
[2024-11-13 14:03:46,919 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:03:46,919 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038428271]
[2024-11-13 14:03:46,920 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:03:46,920 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:03:47,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:03:48,329 INFO  L134       CoverageAnalysis]: Checked inductivity of 787 backedges. 515 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked.
[2024-11-13 14:03:48,329 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:03:48,329 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038428271]
[2024-11-13 14:03:48,329 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038428271] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:03:48,330 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:03:48,330 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:03:48,330 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001859883]
[2024-11-13 14:03:48,330 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:03:48,330 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:03:48,331 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:03:48,331 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:03:48,331 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:03:48,332 INFO  L87              Difference]: Start difference. First operand 112183 states and 123248 transitions. Second operand  has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 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 14:03:53,388 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:03:53,388 INFO  L93              Difference]: Finished difference Result 233001 states and 256805 transitions.
[2024-11-13 14:03:53,388 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:03:53,388 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 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 481
[2024-11-13 14:03:53,389 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:03:53,507 INFO  L225             Difference]: With dead ends: 233001
[2024-11-13 14:03:53,507 INFO  L226             Difference]: Without dead ends: 121607
[2024-11-13 14:03:53,534 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 14:03:53,535 INFO  L432           NwaCegarLoop]: 347 mSDtfsCounter, 1194 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2198 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 2910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 2198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2024-11-13 14:03:53,535 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 359 Invalid, 2910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 2198 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2024-11-13 14:03:53,618 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 121607 states.
[2024-11-13 14:03:54,852 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 121607 to 121607.
[2024-11-13 14:03:54,944 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 121607 states, 121606 states have (on average 1.0890827755209447) internal successors, (132439), 121606 states have internal predecessors, (132439), 0 states have call successors, (0), 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 14:03:55,205 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 121607 states to 121607 states and 132439 transitions.
[2024-11-13 14:03:55,207 INFO  L78                 Accepts]: Start accepts. Automaton has 121607 states and 132439 transitions. Word has length 481
[2024-11-13 14:03:55,207 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:03:55,207 INFO  L471      AbstractCegarLoop]: Abstraction has 121607 states and 132439 transitions.
[2024-11-13 14:03:55,208 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 99.66666666666667) internal successors, (299), 3 states have internal predecessors, (299), 0 states have call successors, (0), 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 14:03:55,208 INFO  L276                IsEmpty]: Start isEmpty. Operand 121607 states and 132439 transitions.
[2024-11-13 14:03:55,220 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 484
[2024-11-13 14:03:55,220 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:03:55,220 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 14:03:55,220 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-11-13 14:03:55,221 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:03:55,221 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:03:55,221 INFO  L85        PathProgramCache]: Analyzing trace with hash 1195181044, now seen corresponding path program 1 times
[2024-11-13 14:03:55,222 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:03:55,222 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267739222]
[2024-11-13 14:03:55,222 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:03:55,222 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:03:55,651 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:03:56,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 717 backedges. 556 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked.
[2024-11-13 14:03:56,118 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:03:56,118 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267739222]
[2024-11-13 14:03:56,118 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267739222] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:03:56,118 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:03:56,118 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:03:56,118 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530542088]
[2024-11-13 14:03:56,118 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:03:56,119 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:03:56,119 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:03:56,120 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:03:56,120 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:03:56,120 INFO  L87              Difference]: Start difference. First operand 121607 states and 132439 transitions. Second operand  has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 14:04:01,860 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:04:01,860 INFO  L93              Difference]: Finished difference Result 242426 states and 264092 transitions.
[2024-11-13 14:04:01,860 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:04:01,861 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 483
[2024-11-13 14:04:01,861 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:04:02,016 INFO  L225             Difference]: With dead ends: 242426
[2024-11-13 14:04:02,016 INFO  L226             Difference]: Without dead ends: 121608
[2024-11-13 14:04:02,051 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 14:04:02,052 INFO  L432           NwaCegarLoop]: 1579 mSDtfsCounter, 723 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 379 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 2780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 379 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2024-11-13 14:04:02,052 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1708 Invalid, 2780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [379 Valid, 2401 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2024-11-13 14:04:02,151 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 121608 states.
[2024-11-13 14:04:03,333 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 121608 to 120018.
[2024-11-13 14:04:03,422 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 120018 states, 120017 states have (on average 1.0747060833048652) internal successors, (128983), 120017 states have internal predecessors, (128983), 0 states have call successors, (0), 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 14:04:03,993 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120018 states to 120018 states and 128983 transitions.
[2024-11-13 14:04:03,994 INFO  L78                 Accepts]: Start accepts. Automaton has 120018 states and 128983 transitions. Word has length 483
[2024-11-13 14:04:03,995 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:04:03,995 INFO  L471      AbstractCegarLoop]: Abstraction has 120018 states and 128983 transitions.
[2024-11-13 14:04:03,995 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 14:04:03,995 INFO  L276                IsEmpty]: Start isEmpty. Operand 120018 states and 128983 transitions.
[2024-11-13 14:04:04,012 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 542
[2024-11-13 14:04:04,013 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:04:04,013 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:04:04,013 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-11-13 14:04:04,013 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:04:04,014 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:04:04,014 INFO  L85        PathProgramCache]: Analyzing trace with hash -797877392, now seen corresponding path program 1 times
[2024-11-13 14:04:04,014 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:04:04,014 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122562620]
[2024-11-13 14:04:04,014 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:04:04,015 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:04:04,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:04:05,126 INFO  L134       CoverageAnalysis]: Checked inductivity of 812 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked.
[2024-11-13 14:04:05,127 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:04:05,127 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122562620]
[2024-11-13 14:04:05,129 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122562620] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:04:05,130 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:04:05,130 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 14:04:05,130 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470980992]
[2024-11-13 14:04:05,130 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:04:05,131 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 14:04:05,131 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:04:05,132 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 14:04:05,132 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 14:04:05,133 INFO  L87              Difference]: Start difference. First operand 120018 states and 128983 transitions. Second operand  has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 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 14:04:16,184 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:04:16,184 INFO  L93              Difference]: Finished difference Result 328388 states and 354161 transitions.
[2024-11-13 14:04:16,184 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 14:04:16,185 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 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 541
[2024-11-13 14:04:16,185 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:04:16,506 INFO  L225             Difference]: With dead ends: 328388
[2024-11-13 14:04:16,506 INFO  L226             Difference]: Without dead ends: 209159
[2024-11-13 14:04:16,573 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 14:04:16,574 INFO  L432           NwaCegarLoop]: 664 mSDtfsCounter, 1697 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 6219 mSolverCounterSat, 1008 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 7227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1008 IncrementalHoareTripleChecker+Valid, 6219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time
[2024-11-13 14:04:16,574 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 926 Invalid, 7227 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1008 Valid, 6219 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time]
[2024-11-13 14:04:16,743 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 209159 states.
[2024-11-13 14:04:19,078 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 209159 to 171207.
[2024-11-13 14:04:19,207 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 171207 states, 171206 states have (on average 1.071323434926346) internal successors, (183417), 171206 states have internal predecessors, (183417), 0 states have call successors, (0), 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 14:04:19,444 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 171207 states to 171207 states and 183417 transitions.
[2024-11-13 14:04:19,445 INFO  L78                 Accepts]: Start accepts. Automaton has 171207 states and 183417 transitions. Word has length 541
[2024-11-13 14:04:19,446 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:04:19,446 INFO  L471      AbstractCegarLoop]: Abstraction has 171207 states and 183417 transitions.
[2024-11-13 14:04:19,446 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 99.5) internal successors, (398), 4 states have internal predecessors, (398), 0 states have call successors, (0), 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 14:04:19,446 INFO  L276                IsEmpty]: Start isEmpty. Operand 171207 states and 183417 transitions.
[2024-11-13 14:04:20,025 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 553
[2024-11-13 14:04:20,025 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:04:20,026 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 14:04:20,026 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-11-13 14:04:20,026 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:04:20,028 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:04:20,028 INFO  L85        PathProgramCache]: Analyzing trace with hash 1411294860, now seen corresponding path program 1 times
[2024-11-13 14:04:20,028 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:04:20,029 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271402070]
[2024-11-13 14:04:20,029 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:04:20,029 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:04:20,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:04:21,467 INFO  L134       CoverageAnalysis]: Checked inductivity of 1049 backedges. 553 proven. 75 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked.
[2024-11-13 14:04:21,468 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:04:21,468 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271402070]
[2024-11-13 14:04:21,468 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271402070] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 14:04:21,468 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138366755]
[2024-11-13 14:04:21,469 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:04:21,469 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 14:04:21,469 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 14:04:21,472 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 14:04:21,474 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-13 14:04:21,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:04:21,853 INFO  L255         TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-13 14:04:21,878 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 14:04:22,637 INFO  L134       CoverageAnalysis]: Checked inductivity of 1049 backedges. 553 proven. 0 refuted. 0 times theorem prover too weak. 496 trivial. 0 not checked.
[2024-11-13 14:04:22,638 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-13 14:04:22,638 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138366755] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:04:22,638 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-13 14:04:22,639 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2024-11-13 14:04:22,639 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049566308]
[2024-11-13 14:04:22,639 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:04:22,640 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:04:22,641 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:04:22,642 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:04:22,642 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 14:04:22,642 INFO  L87              Difference]: Start difference. First operand 171207 states and 183417 transitions. Second operand  has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 2 states have internal predecessors, (269), 0 states have call successors, (0), 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 14:04:28,763 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:04:28,763 INFO  L93              Difference]: Finished difference Result 339253 states and 363550 transitions.
[2024-11-13 14:04:28,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:04:28,764 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 2 states have internal predecessors, (269), 0 states have call successors, (0), 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 552
[2024-11-13 14:04:28,764 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:04:28,985 INFO  L225             Difference]: With dead ends: 339253
[2024-11-13 14:04:28,985 INFO  L226             Difference]: Without dead ends: 168835
[2024-11-13 14:04:29,070 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 14:04:29,071 INFO  L432           NwaCegarLoop]: 606 mSDtfsCounter, 1025 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 2263 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 712 SdHoareTripleChecker+Invalid, 2716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 2263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2024-11-13 14:04:29,071 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 712 Invalid, 2716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 2263 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2024-11-13 14:04:29,229 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 168835 states.
[2024-11-13 14:04:31,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 168835 to 167255.
[2024-11-13 14:04:31,629 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 167255 states, 167254 states have (on average 1.0526086072679877) internal successors, (176053), 167254 states have internal predecessors, (176053), 0 states have call successors, (0), 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 14:04:31,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 167255 states to 167255 states and 176053 transitions.
[2024-11-13 14:04:31,828 INFO  L78                 Accepts]: Start accepts. Automaton has 167255 states and 176053 transitions. Word has length 552
[2024-11-13 14:04:31,828 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:04:31,828 INFO  L471      AbstractCegarLoop]: Abstraction has 167255 states and 176053 transitions.
[2024-11-13 14:04:31,828 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 2 states have internal predecessors, (269), 0 states have call successors, (0), 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 14:04:31,828 INFO  L276                IsEmpty]: Start isEmpty. Operand 167255 states and 176053 transitions.
[2024-11-13 14:04:31,840 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 615
[2024-11-13 14:04:31,840 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:04:31,841 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:04:31,859 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-13 14:04:32,041 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-13 14:04:32,042 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:04:32,042 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:04:32,042 INFO  L85        PathProgramCache]: Analyzing trace with hash 1871210834, now seen corresponding path program 1 times
[2024-11-13 14:04:32,042 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:04:32,042 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794764096]
[2024-11-13 14:04:32,043 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:04:32,043 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:04:32,181 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:04:32,719 INFO  L134       CoverageAnalysis]: Checked inductivity of 1160 backedges. 284 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked.
[2024-11-13 14:04:32,719 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:04:32,720 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794764096]
[2024-11-13 14:04:32,720 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794764096] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:04:32,720 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 14:04:32,720 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-13 14:04:32,720 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248733674]
[2024-11-13 14:04:32,720 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:04:32,721 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-13 14:04:32,721 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:04:32,722 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-13 14:04:32,722 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-13 14:04:32,722 INFO  L87              Difference]: Start difference. First operand 167255 states and 176053 transitions. Second operand  has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 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 14:04:40,538 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:04:40,538 INFO  L93              Difference]: Finished difference Result 381845 states and 402526 transitions.
[2024-11-13 14:04:40,538 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-13 14:04:40,538 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 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) Word has length 614
[2024-11-13 14:04:40,539 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:04:40,793 INFO  L225             Difference]: With dead ends: 381845
[2024-11-13 14:04:40,794 INFO  L226             Difference]: Without dead ends: 215379
[2024-11-13 14:04:40,852 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 14:04:40,853 INFO  L432           NwaCegarLoop]: 327 mSDtfsCounter, 945 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 2734 mSolverCounterSat, 681 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 3415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 681 IncrementalHoareTripleChecker+Valid, 2734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time
[2024-11-13 14:04:40,853 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [945 Valid, 411 Invalid, 3415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [681 Valid, 2734 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time]
[2024-11-13 14:04:41,007 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 215379 states.
[2024-11-13 14:04:43,632 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 215379 to 208207.
[2024-11-13 14:04:43,732 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 208207 states, 208206 states have (on average 1.0552529706156404) internal successors, (219710), 208206 states have internal predecessors, (219710), 0 states have call successors, (0), 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 14:04:44,061 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 208207 states to 208207 states and 219710 transitions.
[2024-11-13 14:04:44,062 INFO  L78                 Accepts]: Start accepts. Automaton has 208207 states and 219710 transitions. Word has length 614
[2024-11-13 14:04:44,063 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 14:04:44,063 INFO  L471      AbstractCegarLoop]: Abstraction has 208207 states and 219710 transitions.
[2024-11-13 14:04:44,063 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 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 14:04:44,063 INFO  L276                IsEmpty]: Start isEmpty. Operand 208207 states and 219710 transitions.
[2024-11-13 14:04:44,091 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 719
[2024-11-13 14:04:44,091 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 14:04:44,092 INFO  L215           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:04:44,092 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-13 14:04:44,092 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 14:04:44,093 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 14:04:44,093 INFO  L85        PathProgramCache]: Analyzing trace with hash 1155254385, now seen corresponding path program 1 times
[2024-11-13 14:04:44,093 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 14:04:44,093 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001787315]
[2024-11-13 14:04:44,093 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:04:44,093 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 14:04:44,259 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:04:47,861 INFO  L134       CoverageAnalysis]: Checked inductivity of 1160 backedges. 551 proven. 194 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked.
[2024-11-13 14:04:47,862 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 14:04:47,862 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001787315]
[2024-11-13 14:04:47,862 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001787315] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 14:04:47,862 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197413983]
[2024-11-13 14:04:47,863 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 14:04:47,863 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 14:04:47,863 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 14:04:47,866 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 14:04:47,869 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30c2a2a4-21c1-44fc-84e6-b396d7944132/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-13 14:04:48,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 14:04:48,229 INFO  L255         TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-13 14:04:48,239 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 14:04:48,976 INFO  L134       CoverageAnalysis]: Checked inductivity of 1160 backedges. 714 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked.
[2024-11-13 14:04:48,977 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-13 14:04:48,977 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [197413983] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 14:04:48,977 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-13 14:04:48,977 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8
[2024-11-13 14:04:48,978 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421659241]
[2024-11-13 14:04:48,978 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 14:04:48,978 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 14:04:48,979 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 14:04:48,980 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 14:04:48,980 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-13 14:04:48,980 INFO  L87              Difference]: Start difference. First operand 208207 states and 219710 transitions. Second operand  has 4 states, 4 states have (on average 115.5) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 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 14:05:00,121 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 14:05:00,121 INFO  L93              Difference]: Finished difference Result 471665 states and 497692 transitions.
[2024-11-13 14:05:00,121 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 14:05:00,122 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 115.5) internal successors, (462), 3 states have internal predecessors, (462), 0 states have call successors, (0), 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 718
[2024-11-13 14:05:00,122 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 14:05:00,461 INFO  L225             Difference]: With dead ends: 471665
[2024-11-13 14:05:00,461 INFO  L226             Difference]: Without dead ends: 264247
[2024-11-13 14:05:00,552 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 717 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-13 14:05:00,553 INFO  L432           NwaCegarLoop]: 554 mSDtfsCounter, 1651 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 5458 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1651 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 6138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 5458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time
[2024-11-13 14:05:00,554 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1651 Valid, 719 Invalid, 6138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 5458 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time]
[2024-11-13 14:05:00,781 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 264247 states.
[2024-11-13 14:05:03,717 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 264247 to 259413.
[2024-11-13 14:05:03,886 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 259413 states, 259412 states have (on average 1.0550437142460642) internal successors, (273691), 259412 states have internal predecessors, (273691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)