./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c --full-output --architecture 64bit


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


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_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/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_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/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 64bit --witnessprinter.graph.data.programhash af4406295bba4931a09fe5e1b298f76c629de8bcf0ce50103cf375e6c315bcbc
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 16:02:25,130 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-13 16:02:25,236 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-13 16:02:25,243 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 16:02:25,243 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 16:02:25,273 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 16:02:25,273 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 16:02:25,274 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 16:02:25,274 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 16:02:25,275 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-13 16:02:25,275 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 16:02:25,275 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 16:02:25,275 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 16:02:25,275 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-13 16:02:25,275 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-13 16:02:25,276 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 16:02:25,276 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-13 16:02:25,276 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-13 16:02:25,276 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-13 16:02:25,276 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 16:02:25,276 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 16:02:25,277 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 16:02:25,277 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-13 16:02:25,277 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-13 16:02:25,277 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-13 16:02:25,278 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 16:02:25,278 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-13 16:02:25,278 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 16:02:25,278 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-13 16:02:25,278 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 16:02:25,279 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 16:02:25,279 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 16:02:25,279 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 16:02:25,279 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-13 16:02:25,279 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-13 16:02:25,279 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 16:02:25,280 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 16:02:25,280 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 16:02:25,280 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 16:02:25,280 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_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af4406295bba4931a09fe5e1b298f76c629de8bcf0ce50103cf375e6c315bcbc
[2024-11-13 16:02:25,670 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 16:02:25,684 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 16:02:25,688 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 16:02:25,691 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-13 16:02:25,691 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-13 16:02:25,694 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c
Unable to find full path for "g++"
[2024-11-13 16:02:27,936 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-13 16:02:28,662 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-13 16:02:28,663 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c
[2024-11-13 16:02:28,720 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/bin/uautomizer-verify-qhAvR1uOyd/data/dd6b8ee89/ca338757eba944ebad1ea986a9ecc043/FLAGa300f8154
[2024-11-13 16:02:28,747 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/bin/uautomizer-verify-qhAvR1uOyd/data/dd6b8ee89/ca338757eba944ebad1ea986a9ecc043
[2024-11-13 16:02:28,750 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 16:02:28,751 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 16:02:28,753 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 16:02:28,753 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 16:02:28,760 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 16:02:28,761 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:02:28" (1/1) ...
[2024-11-13 16:02:28,764 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f076560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:28, skipping insertion in model container
[2024-11-13 16:02:28,764 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:02:28" (1/1) ...
[2024-11-13 16:02:28,954 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-13 16:02:29,299 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_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c[1176,1189]
[2024-11-13 16:02:30,463 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 16:02:30,477 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-13 16:02:30,493 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_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c[1176,1189]
[2024-11-13 16:02:31,446 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 16:02:31,466 INFO  L204         MainTranslator]: Completed translation
[2024-11-13 16:02:31,470 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31 WrapperNode
[2024-11-13 16:02:31,470 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 16:02:31,473 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 16:02:31,473 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 16:02:31,473 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 16:02:31,482 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:31,666 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:35,202 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22207
[2024-11-13 16:02:35,207 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 16:02:35,208 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 16:02:35,211 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 16:02:35,212 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 16:02:35,235 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:35,237 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:36,237 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:36,708 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-13 16:02:36,708 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:36,710 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:37,367 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:37,658 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:37,798 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:37,888 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:38,272 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 16:02:38,273 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 16:02:38,273 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 16:02:38,274 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-13 16:02:38,275 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (1/1) ...
[2024-11-13 16:02:38,281 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 16:02:38,298 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 16:02:38,316 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 16:02:38,321 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d36dcc-cc56-495d-a511-6cf3aa86c6dd/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 16:02:38,354 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 16:02:38,354 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-13 16:02:38,354 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 16:02:38,355 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 16:02:40,062 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-13 16:02:40,065 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 16:03:47,008 INFO  L?                        ?]: Removed 12511 outVars from TransFormulas that were not future-live.
[2024-11-13 16:03:47,008 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-13 16:03:47,178 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 16:03:47,180 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 16:03:47,180 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:03:47 BoogieIcfgContainer
[2024-11-13 16:03:47,180 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 16:03:47,184 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 16:03:47,184 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 16:03:47,191 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-13 16:03:47,191 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:02:28" (1/3) ...
[2024-11-13 16:03:47,192 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc376d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:03:47, skipping insertion in model container
[2024-11-13 16:03:47,194 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:02:31" (2/3) ...
[2024-11-13 16:03:47,194 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc376d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:03:47, skipping insertion in model container
[2024-11-13 16:03:47,195 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:03:47" (3/3) ...
[2024-11-13 16:03:47,196 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.4.prop1-func-interl.c
[2024-11-13 16:03:47,216 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 16:03:47,219 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.4.prop1-func-interl.c that has 1 procedures, 7854 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 16:03:47,490 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 16:03:47,509 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;@55090e63, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 16:03:47,512 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 16:03:47,546 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7854 states, 7852 states have (on average 1.5039480387162507) internal successors, (11809), 7853 states have internal predecessors, (11809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:47,575 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 310
[2024-11-13 16:03:47,578 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:03:47,579 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:03:47,580 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:03:47,587 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:03:47,589 INFO  L85        PathProgramCache]: Analyzing trace with hash -1923731594, now seen corresponding path program 1 times
[2024-11-13 16:03:47,599 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:03:47,600 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219521801]
[2024-11-13 16:03:47,600 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:03:47,601 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:03:48,263 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:03:50,161 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:03:50,163 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:03:50,163 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219521801]
[2024-11-13 16:03:50,164 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219521801] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:03:50,164 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:03:50,164 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:03:50,169 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770445457]
[2024-11-13 16:03:50,170 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:03:50,177 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:03:50,178 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:03:50,207 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:03:50,207 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:03:50,227 INFO  L87              Difference]: Start difference. First operand  has 7854 states, 7852 states have (on average 1.5039480387162507) internal successors, (11809), 7853 states have internal predecessors, (11809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:50,909 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:03:50,910 INFO  L93              Difference]: Finished difference Result 15413 states and 23179 transitions.
[2024-11-13 16:03:50,912 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:03:50,913 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 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 309
[2024-11-13 16:03:50,917 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:03:50,993 INFO  L225             Difference]: With dead ends: 15413
[2024-11-13 16:03:50,993 INFO  L226             Difference]: Without dead ends: 7853
[2024-11-13 16:03:51,014 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 16:03:51,018 INFO  L432           NwaCegarLoop]: 11803 mSDtfsCounter, 0 mSDsluCounter, 23600 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35403 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:03:51,021 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35403 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:03:51,060 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7853 states.
[2024-11-13 16:03:51,308 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7853 to 7853.
[2024-11-13 16:03:51,325 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7853 states, 7852 states have (on average 1.5036933265410086) internal successors, (11807), 7852 states have internal predecessors, (11807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:51,374 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7853 states to 7853 states and 11807 transitions.
[2024-11-13 16:03:51,378 INFO  L78                 Accepts]: Start accepts. Automaton has 7853 states and 11807 transitions. Word has length 309
[2024-11-13 16:03:51,380 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:03:51,381 INFO  L471      AbstractCegarLoop]: Abstraction has 7853 states and 11807 transitions.
[2024-11-13 16:03:51,382 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:51,382 INFO  L276                IsEmpty]: Start isEmpty. Operand 7853 states and 11807 transitions.
[2024-11-13 16:03:51,394 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 311
[2024-11-13 16:03:51,398 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:03:51,398 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:03:51,399 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-13 16:03:51,399 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:03:51,399 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:03:51,400 INFO  L85        PathProgramCache]: Analyzing trace with hash 495559859, now seen corresponding path program 1 times
[2024-11-13 16:03:51,400 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:03:51,400 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626793800]
[2024-11-13 16:03:51,400 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:03:51,400 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:03:51,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:03:52,714 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:03:52,717 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:03:52,718 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626793800]
[2024-11-13 16:03:52,718 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626793800] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:03:52,718 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:03:52,718 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:03:52,718 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041891435]
[2024-11-13 16:03:52,718 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:03:52,720 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:03:52,720 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:03:52,721 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:03:52,721 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:03:52,722 INFO  L87              Difference]: Start difference. First operand 7853 states and 11807 transitions. Second operand  has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:53,109 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:03:53,110 INFO  L93              Difference]: Finished difference Result 15414 states and 23177 transitions.
[2024-11-13 16:03:53,110 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:03:53,114 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 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 310
[2024-11-13 16:03:53,116 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:03:53,152 INFO  L225             Difference]: With dead ends: 15414
[2024-11-13 16:03:53,153 INFO  L226             Difference]: Without dead ends: 7855
[2024-11-13 16:03:53,162 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:03:53,165 INFO  L432           NwaCegarLoop]: 11803 mSDtfsCounter, 0 mSDsluCounter, 23596 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35399 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:03:53,165 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35399 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:03:53,182 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7855 states.
[2024-11-13 16:03:53,335 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7855 to 7855.
[2024-11-13 16:03:53,352 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7855 states, 7854 states have (on average 1.5035650623885919) internal successors, (11809), 7854 states have internal predecessors, (11809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:53,390 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7855 states to 7855 states and 11809 transitions.
[2024-11-13 16:03:53,391 INFO  L78                 Accepts]: Start accepts. Automaton has 7855 states and 11809 transitions. Word has length 310
[2024-11-13 16:03:53,392 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:03:53,392 INFO  L471      AbstractCegarLoop]: Abstraction has 7855 states and 11809 transitions.
[2024-11-13 16:03:53,393 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:53,393 INFO  L276                IsEmpty]: Start isEmpty. Operand 7855 states and 11809 transitions.
[2024-11-13 16:03:53,399 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 312
[2024-11-13 16:03:53,399 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:03:53,399 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:03:53,399 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-13 16:03:53,400 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:03:53,401 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:03:53,401 INFO  L85        PathProgramCache]: Analyzing trace with hash 1379489775, now seen corresponding path program 1 times
[2024-11-13 16:03:53,404 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:03:53,405 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125815767]
[2024-11-13 16:03:53,405 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:03:53,405 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:03:53,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:03:54,304 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:03:54,304 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:03:54,304 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125815767]
[2024-11-13 16:03:54,304 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125815767] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:03:54,304 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:03:54,305 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:03:54,305 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361448338]
[2024-11-13 16:03:54,305 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:03:54,306 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:03:54,307 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:03:54,308 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:03:54,309 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:03:54,309 INFO  L87              Difference]: Start difference. First operand 7855 states and 11809 transitions. Second operand  has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:54,945 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:03:54,945 INFO  L93              Difference]: Finished difference Result 15418 states and 23181 transitions.
[2024-11-13 16:03:54,945 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:03:54,946 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 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 311
[2024-11-13 16:03:54,947 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:03:54,978 INFO  L225             Difference]: With dead ends: 15418
[2024-11-13 16:03:54,978 INFO  L226             Difference]: Without dead ends: 7857
[2024-11-13 16:03:54,986 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:03:54,987 INFO  L432           NwaCegarLoop]: 11803 mSDtfsCounter, 0 mSDsluCounter, 23590 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35393 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:03:54,987 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35393 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:03:55,003 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7857 states.
[2024-11-13 16:03:55,155 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7857 to 7857.
[2024-11-13 16:03:55,169 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7857 states, 7856 states have (on average 1.5034368635437882) internal successors, (11811), 7856 states have internal predecessors, (11811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:55,207 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7857 states to 7857 states and 11811 transitions.
[2024-11-13 16:03:55,207 INFO  L78                 Accepts]: Start accepts. Automaton has 7857 states and 11811 transitions. Word has length 311
[2024-11-13 16:03:55,208 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:03:55,208 INFO  L471      AbstractCegarLoop]: Abstraction has 7857 states and 11811 transitions.
[2024-11-13 16:03:55,209 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:55,210 INFO  L276                IsEmpty]: Start isEmpty. Operand 7857 states and 11811 transitions.
[2024-11-13 16:03:55,216 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 313
[2024-11-13 16:03:55,216 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:03:55,220 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:03:55,220 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-13 16:03:55,220 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:03:55,221 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:03:55,221 INFO  L85        PathProgramCache]: Analyzing trace with hash 723398842, now seen corresponding path program 1 times
[2024-11-13 16:03:55,221 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:03:55,221 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057459763]
[2024-11-13 16:03:55,221 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:03:55,221 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:03:55,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:03:56,411 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:03:56,412 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:03:56,412 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057459763]
[2024-11-13 16:03:56,412 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057459763] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:03:56,412 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:03:56,412 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 16:03:56,413 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9575458]
[2024-11-13 16:03:56,413 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:03:56,413 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 16:03:56,414 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:03:56,414 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 16:03:56,415 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:03:56,415 INFO  L87              Difference]: Start difference. First operand 7857 states and 11811 transitions. Second operand  has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:57,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:03:57,094 INFO  L93              Difference]: Finished difference Result 21713 states and 32650 transitions.
[2024-11-13 16:03:57,094 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-13 16:03:57,094 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 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 312
[2024-11-13 16:03:57,095 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:03:57,166 INFO  L225             Difference]: With dead ends: 21713
[2024-11-13 16:03:57,167 INFO  L226             Difference]: Without dead ends: 14150
[2024-11-13 16:03:57,179 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-13 16:03:57,181 INFO  L432           NwaCegarLoop]: 11799 mSDtfsCounter, 9607 mSDsluCounter, 34952 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9607 SdHoareTripleChecker+Valid, 46751 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 16:03:57,183 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9607 Valid, 46751 Invalid, 30 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 16:03:57,217 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14150 states.
[2024-11-13 16:03:57,437 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14150 to 8165.
[2024-11-13 16:03:57,450 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8165 states, 8164 states have (on average 1.5033072023517884) internal successors, (12273), 8164 states have internal predecessors, (12273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:57,490 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8165 states to 8165 states and 12273 transitions.
[2024-11-13 16:03:57,491 INFO  L78                 Accepts]: Start accepts. Automaton has 8165 states and 12273 transitions. Word has length 312
[2024-11-13 16:03:57,493 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:03:57,493 INFO  L471      AbstractCegarLoop]: Abstraction has 8165 states and 12273 transitions.
[2024-11-13 16:03:57,494 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 62.4) internal successors, (312), 5 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:03:57,494 INFO  L276                IsEmpty]: Start isEmpty. Operand 8165 states and 12273 transitions.
[2024-11-13 16:03:57,755 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4020
[2024-11-13 16:03:57,755 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:03:57,758 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:03:57,758 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-13 16:03:57,759 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:03:57,759 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:03:57,762 INFO  L85        PathProgramCache]: Analyzing trace with hash -1657610999, now seen corresponding path program 1 times
[2024-11-13 16:03:57,762 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:03:57,762 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18534640]
[2024-11-13 16:03:57,764 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:03:57,764 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:04:07,142 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:04:23,618 INFO  L134       CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:04:23,618 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:04:23,618 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18534640]
[2024-11-13 16:04:23,618 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18534640] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:04:23,618 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:04:23,619 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:04:23,619 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804676304]
[2024-11-13 16:04:23,619 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:04:23,626 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:04:23,626 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:04:23,630 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:04:23,631 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:04:23,632 INFO  L87              Difference]: Start difference. First operand 8165 states and 12273 transitions. Second operand  has 4 states, 4 states have (on average 1004.75) internal successors, (4019), 4 states have internal predecessors, (4019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:04:24,227 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:04:24,228 INFO  L93              Difference]: Finished difference Result 15728 states and 23644 transitions.
[2024-11-13 16:04:24,228 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:04:24,230 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1004.75) internal successors, (4019), 4 states have internal predecessors, (4019), 0 states have call successors, (0), 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 4019
[2024-11-13 16:04:24,231 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:04:24,422 INFO  L225             Difference]: With dead ends: 15728
[2024-11-13 16:04:24,422 INFO  L226             Difference]: Without dead ends: 8165
[2024-11-13 16:04:24,429 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:04:24,431 INFO  L432           NwaCegarLoop]: 11775 mSDtfsCounter, 11499 mSDsluCounter, 11773 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11499 SdHoareTripleChecker+Valid, 23548 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-13 16:04:24,432 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11499 Valid, 23548 Invalid, 57 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-13 16:04:24,444 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8165 states.
[2024-11-13 16:04:24,671 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8165 to 8165.
[2024-11-13 16:04:24,694 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8165 states, 8164 states have (on average 1.5031847133757963) internal successors, (12272), 8164 states have internal predecessors, (12272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:04:24,726 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8165 states to 8165 states and 12272 transitions.
[2024-11-13 16:04:24,726 INFO  L78                 Accepts]: Start accepts. Automaton has 8165 states and 12272 transitions. Word has length 4019
[2024-11-13 16:04:24,728 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:04:24,728 INFO  L471      AbstractCegarLoop]: Abstraction has 8165 states and 12272 transitions.
[2024-11-13 16:04:24,729 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1004.75) internal successors, (4019), 4 states have internal predecessors, (4019), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:04:24,729 INFO  L276                IsEmpty]: Start isEmpty. Operand 8165 states and 12272 transitions.
[2024-11-13 16:04:25,018 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4021
[2024-11-13 16:04:25,022 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:04:25,024 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2024-11-13 16:04:25,029 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-13 16:04:25,029 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:04:25,029 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:04:25,032 INFO  L85        PathProgramCache]: Analyzing trace with hash 1914401221, now seen corresponding path program 1 times
[2024-11-13 16:04:25,032 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:04:25,032 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992991442]
[2024-11-13 16:04:25,038 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:04:25,038 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:04:33,968 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:04:45,547 INFO  L134       CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:04:45,547 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:04:45,547 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992991442]
[2024-11-13 16:04:45,547 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992991442] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:04:45,548 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:04:45,548 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:04:45,552 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434903248]
[2024-11-13 16:04:45,553 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:04:45,557 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:04:45,561 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:04:45,565 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:04:45,569 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:04:45,571 INFO  L87              Difference]: Start difference. First operand 8165 states and 12272 transitions. Second operand  has 4 states, 4 states have (on average 1005.0) internal successors, (4020), 4 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:04:46,500 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:04:46,500 INFO  L93              Difference]: Finished difference Result 15728 states and 23642 transitions.
[2024-11-13 16:04:46,501 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:04:46,502 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1005.0) internal successors, (4020), 4 states have internal predecessors, (4020), 0 states have call successors, (0), 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 4020
[2024-11-13 16:04:46,503 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:04:46,545 INFO  L225             Difference]: With dead ends: 15728
[2024-11-13 16:04:46,546 INFO  L226             Difference]: Without dead ends: 8165
[2024-11-13 16:04:46,566 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:04:46,567 INFO  L432           NwaCegarLoop]: 11774 mSDtfsCounter, 11481 mSDsluCounter, 11772 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11481 SdHoareTripleChecker+Valid, 23546 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-13 16:04:46,567 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11481 Valid, 23546 Invalid, 57 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-13 16:04:46,594 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8165 states.
[2024-11-13 16:04:46,810 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8165 to 8165.
[2024-11-13 16:04:46,823 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8165 states, 8164 states have (on average 1.503062224399804) internal successors, (12271), 8164 states have internal predecessors, (12271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:04:46,843 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8165 states to 8165 states and 12271 transitions.
[2024-11-13 16:04:46,848 INFO  L78                 Accepts]: Start accepts. Automaton has 8165 states and 12271 transitions. Word has length 4020
[2024-11-13 16:04:46,849 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:04:46,849 INFO  L471      AbstractCegarLoop]: Abstraction has 8165 states and 12271 transitions.
[2024-11-13 16:04:46,853 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1005.0) internal successors, (4020), 4 states have internal predecessors, (4020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:04:46,856 INFO  L276                IsEmpty]: Start isEmpty. Operand 8165 states and 12271 transitions.
[2024-11-13 16:04:47,245 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4022
[2024-11-13 16:04:47,246 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:04:47,251 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 16:04:47,252 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-13 16:04:47,252 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:04:47,253 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:04:47,259 INFO  L85        PathProgramCache]: Analyzing trace with hash -186977940, now seen corresponding path program 1 times
[2024-11-13 16:04:47,260 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:04:47,260 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945222706]
[2024-11-13 16:04:47,261 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:04:47,265 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:04:53,604 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:05:02,368 INFO  L134       CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:05:02,368 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:05:02,368 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945222706]
[2024-11-13 16:05:02,368 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945222706] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:05:02,368 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:05:02,369 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:05:02,369 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022675019]
[2024-11-13 16:05:02,369 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:05:02,375 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:05:02,375 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:05:02,382 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:05:02,383 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:05:02,384 INFO  L87              Difference]: Start difference. First operand 8165 states and 12271 transitions. Second operand  has 4 states, 4 states have (on average 1005.25) internal successors, (4021), 4 states have internal predecessors, (4021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:05:02,968 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:05:02,968 INFO  L93              Difference]: Finished difference Result 15728 states and 23640 transitions.
[2024-11-13 16:05:02,969 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:05:02,970 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1005.25) internal successors, (4021), 4 states have internal predecessors, (4021), 0 states have call successors, (0), 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 4021
[2024-11-13 16:05:02,972 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:05:02,994 INFO  L225             Difference]: With dead ends: 15728
[2024-11-13 16:05:02,995 INFO  L226             Difference]: Without dead ends: 8165
[2024-11-13 16:05:03,005 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:05:03,007 INFO  L432           NwaCegarLoop]: 11773 mSDtfsCounter, 11463 mSDsluCounter, 11771 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11463 SdHoareTripleChecker+Valid, 23544 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-13 16:05:03,008 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11463 Valid, 23544 Invalid, 57 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-13 16:05:03,027 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8165 states.
[2024-11-13 16:05:03,197 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8165 to 8165.
[2024-11-13 16:05:03,215 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8165 states, 8164 states have (on average 1.5029397354238119) internal successors, (12270), 8164 states have internal predecessors, (12270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:05:03,246 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8165 states to 8165 states and 12270 transitions.
[2024-11-13 16:05:03,246 INFO  L78                 Accepts]: Start accepts. Automaton has 8165 states and 12270 transitions. Word has length 4021
[2024-11-13 16:05:03,249 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:05:03,250 INFO  L471      AbstractCegarLoop]: Abstraction has 8165 states and 12270 transitions.
[2024-11-13 16:05:03,251 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1005.25) internal successors, (4021), 4 states have internal predecessors, (4021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:05:03,251 INFO  L276                IsEmpty]: Start isEmpty. Operand 8165 states and 12270 transitions.
[2024-11-13 16:05:03,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4023
[2024-11-13 16:05:03,541 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:05:03,544 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2024-11-13 16:05:03,544 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-13 16:05:03,544 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:05:03,545 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:05:03,548 INFO  L85        PathProgramCache]: Analyzing trace with hash -1853552248, now seen corresponding path program 1 times
[2024-11-13 16:05:03,548 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:05:03,548 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132261256]
[2024-11-13 16:05:03,550 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:05:03,550 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 16:05:09,855 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 16:05:17,681 INFO  L134       CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 16:05:17,682 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 16:05:17,682 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132261256]
[2024-11-13 16:05:17,682 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132261256] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 16:05:17,682 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 16:05:17,683 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 16:05:17,683 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113516281]
[2024-11-13 16:05:17,683 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 16:05:17,686 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 16:05:17,687 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 16:05:17,690 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 16:05:17,690 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 16:05:17,692 INFO  L87              Difference]: Start difference. First operand 8165 states and 12270 transitions. Second operand  has 4 states, 4 states have (on average 1005.5) internal successors, (4022), 4 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:05:19,129 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 16:05:19,129 INFO  L93              Difference]: Finished difference Result 15728 states and 23638 transitions.
[2024-11-13 16:05:19,129 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 16:05:19,130 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1005.5) internal successors, (4022), 4 states have internal predecessors, (4022), 0 states have call successors, (0), 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 4022
[2024-11-13 16:05:19,131 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 16:05:19,149 INFO  L225             Difference]: With dead ends: 15728
[2024-11-13 16:05:19,149 INFO  L226             Difference]: Without dead ends: 8165
[2024-11-13 16:05:19,156 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-13 16:05:19,157 INFO  L432           NwaCegarLoop]: 11772 mSDtfsCounter, 11445 mSDsluCounter, 11770 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11445 SdHoareTripleChecker+Valid, 23542 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-13 16:05:19,157 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11445 Valid, 23542 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-13 16:05:19,168 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8165 states.
[2024-11-13 16:05:19,266 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8165 to 8165.
[2024-11-13 16:05:19,277 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8165 states, 8164 states have (on average 1.5028172464478198) internal successors, (12269), 8164 states have internal predecessors, (12269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:05:19,291 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8165 states to 8165 states and 12269 transitions.
[2024-11-13 16:05:19,292 INFO  L78                 Accepts]: Start accepts. Automaton has 8165 states and 12269 transitions. Word has length 4022
[2024-11-13 16:05:19,293 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 16:05:19,293 INFO  L471      AbstractCegarLoop]: Abstraction has 8165 states and 12269 transitions.
[2024-11-13 16:05:19,295 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1005.5) internal successors, (4022), 4 states have internal predecessors, (4022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 16:05:19,295 INFO  L276                IsEmpty]: Start isEmpty. Operand 8165 states and 12269 transitions.
[2024-11-13 16:05:19,427 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4024
[2024-11-13 16:05:19,428 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 16:05:19,430 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2024-11-13 16:05:19,430 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-13 16:05:19,431 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 16:05:19,431 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 16:05:19,434 INFO  L85        PathProgramCache]: Analyzing trace with hash 126336463, now seen corresponding path program 1 times
[2024-11-13 16:05:19,434 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 16:05:19,434 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275260837]
[2024-11-13 16:05:19,436 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 16:05:19,437 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms