./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.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_173959c5-0d29-401e-ac28-f719bb9bf143/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173959c5-0d29-401e-ac28-f719bb9bf143/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_173959c5-0d29-401e-ac28-f719bb9bf143/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173959c5-0d29-401e-ac28-f719bb9bf143/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173959c5-0d29-401e-ac28-f719bb9bf143/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_173959c5-0d29-401e-ac28-f719bb9bf143/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 0c133b27c7efeadfcaea81391b0d2d6a8c00716cf93dc15fdb9df210e73da113
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 12:57:42,110 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-13 12:57:42,215 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173959c5-0d29-401e-ac28-f719bb9bf143/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-13 12:57:42,223 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 12:57:42,225 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 12:57:42,264 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 12:57:42,264 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 12:57:42,265 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 12:57:42,265 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 12:57:42,265 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-13 12:57:42,266 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 12:57:42,266 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 12:57:42,266 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 12:57:42,267 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-13 12:57:42,267 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-13 12:57:42,267 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 12:57:42,267 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-13 12:57:42,267 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-13 12:57:42,268 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-13 12:57:42,268 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 12:57:42,268 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 12:57:42,268 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 12:57:42,268 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-13 12:57:42,269 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-13 12:57:42,269 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-13 12:57:42,269 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 12:57:42,269 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-13 12:57:42,269 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 12:57:42,269 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-13 12:57:42,270 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 12:57:42,270 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 12:57:42,270 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 12:57:42,270 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 12:57:42,270 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-13 12:57:42,271 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-13 12:57:42,271 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 12:57:42,271 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 12:57:42,271 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 12:57:42,272 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 12:57:42,272 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_173959c5-0d29-401e-ac28-f719bb9bf143/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 -> 0c133b27c7efeadfcaea81391b0d2d6a8c00716cf93dc15fdb9df210e73da113
[2024-11-13 12:57:42,639 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 12:57:42,654 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 12:57:42,658 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 12:57:42,660 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-13 12:57:42,660 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-13 12:57:42,662 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173959c5-0d29-401e-ac28-f719bb9bf143/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.c
Unable to find full path for "g++"
[2024-11-13 12:57:44,692 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-13 12:57:45,287 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-13 12:57:45,287 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173959c5-0d29-401e-ac28-f719bb9bf143/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.c
[2024-11-13 12:57:45,328 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173959c5-0d29-401e-ac28-f719bb9bf143/bin/uautomizer-verify-qhAvR1uOyd/data/4aefa5b0c/6202af25ed2d4ac7b7afa9b91ad9f254/FLAG8c6dd0b33
[2024-11-13 12:57:45,789 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173959c5-0d29-401e-ac28-f719bb9bf143/bin/uautomizer-verify-qhAvR1uOyd/data/4aefa5b0c/6202af25ed2d4ac7b7afa9b91ad9f254
[2024-11-13 12:57:45,791 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 12:57:45,793 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 12:57:45,794 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 12:57:45,795 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 12:57:45,800 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 12:57:45,801 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:57:45" (1/1) ...
[2024-11-13 12:57:45,803 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@353d0bee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:45, skipping insertion in model container
[2024-11-13 12:57:45,803 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:57:45" (1/1) ...
[2024-11-13 12:57:45,975 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-13 12:57:46,305 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_173959c5-0d29-401e-ac28-f719bb9bf143/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.c[1177,1190]
[2024-11-13 12:57:47,393 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 12:57:47,403 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-13 12:57:47,414 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_173959c5-0d29-401e-ac28-f719bb9bf143/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.szymanski.4.prop1-back-serstep.c[1177,1190]
[2024-11-13 12:57:48,211 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 12:57:48,229 INFO  L204         MainTranslator]: Completed translation
[2024-11-13 12:57:48,230 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48 WrapperNode
[2024-11-13 12:57:48,231 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 12:57:48,233 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 12:57:48,233 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 12:57:48,233 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 12:57:48,241 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:48,418 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:51,099 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20610
[2024-11-13 12:57:51,100 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 12:57:51,101 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 12:57:51,102 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 12:57:51,104 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 12:57:51,114 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:51,115 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:52,050 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:52,770 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 12:57:52,770 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:52,774 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:53,782 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:53,893 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:54,006 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:54,091 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:54,396 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 12:57:54,397 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 12:57:54,397 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 12:57:54,397 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-13 12:57:54,398 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (1/1) ...
[2024-11-13 12:57:54,404 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 12:57:54,420 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173959c5-0d29-401e-ac28-f719bb9bf143/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 12:57:54,437 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173959c5-0d29-401e-ac28-f719bb9bf143/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 12:57:54,441 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_173959c5-0d29-401e-ac28-f719bb9bf143/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 12:57:54,474 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 12:57:54,474 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-13 12:57:54,474 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 12:57:54,475 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 12:57:56,234 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-13 12:57:56,238 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 12:58:56,886 INFO  L?                        ?]: Removed 11623 outVars from TransFormulas that were not future-live.
[2024-11-13 12:58:56,886 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-13 12:58:57,006 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 12:58:57,006 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 12:58:57,006 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:58:57 BoogieIcfgContainer
[2024-11-13 12:58:57,007 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 12:58:57,010 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 12:58:57,010 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 12:58:57,015 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-13 12:58:57,015 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:57:45" (1/3) ...
[2024-11-13 12:58:57,016 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a68d05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:58:57, skipping insertion in model container
[2024-11-13 12:58:57,016 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:57:48" (2/3) ...
[2024-11-13 12:58:57,018 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a68d05c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:58:57, skipping insertion in model container
[2024-11-13 12:58:57,018 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:58:57" (3/3) ...
[2024-11-13 12:58:57,020 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.szymanski.4.prop1-back-serstep.c
[2024-11-13 12:58:57,036 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 12:58:57,038 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.szymanski.4.prop1-back-serstep.c that has 1 procedures, 6894 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 12:58:57,237 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 12:58:57,253 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;@1f1f76f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 12:58:57,254 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 12:58:57,279 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6894 states, 6892 states have (on average 1.4998549042367963) internal successors, (10337), 6893 states have internal predecessors, (10337), 0 states have call successors, (0), 0 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 12:58:57,326 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 644
[2024-11-13 12:58:57,326 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:58:57,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:57,330 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:58:57,335 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:58:57,335 INFO  L85        PathProgramCache]: Analyzing trace with hash -1844682639, now seen corresponding path program 1 times
[2024-11-13 12:58:57,344 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:58:57,344 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820234571]
[2024-11-13 12:58:57,345 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:58:57,346 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:58:58,320 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:59:01,740 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 12:59:01,741 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:59:01,741 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820234571]
[2024-11-13 12:59:01,742 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820234571] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:59:01,742 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:59:01,744 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 12:59:01,745 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117227454]
[2024-11-13 12:59:01,746 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:59:01,754 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 12:59:01,754 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:59:01,780 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 12:59:01,781 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 12:59:01,798 INFO  L87              Difference]: Start difference. First operand  has 6894 states, 6892 states have (on average 1.4998549042367963) internal successors, (10337), 6893 states have internal predecessors, (10337), 0 states have call successors, (0), 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 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 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 12:59:02,291 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:59:02,291 INFO  L93              Difference]: Finished difference Result 13505 states and 20253 transitions.
[2024-11-13 12:59:02,293 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:59:02,294 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 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 643
[2024-11-13 12:59:02,298 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:59:02,354 INFO  L225             Difference]: With dead ends: 13505
[2024-11-13 12:59:02,354 INFO  L226             Difference]: Without dead ends: 6893
[2024-11-13 12:59:02,371 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 12:59:02,374 INFO  L432           NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20656 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30987 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-13 12:59:02,376 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30987 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 12:59:02,405 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6893 states.
[2024-11-13 12:59:02,615 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6893 to 6893.
[2024-11-13 12:59:02,630 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6893 states, 6892 states have (on average 1.4995647127103888) internal successors, (10335), 6892 states have internal predecessors, (10335), 0 states have call successors, (0), 0 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 12:59:02,666 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6893 states to 6893 states and 10335 transitions.
[2024-11-13 12:59:02,668 INFO  L78                 Accepts]: Start accepts. Automaton has 6893 states and 10335 transitions. Word has length 643
[2024-11-13 12:59:02,671 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:59:02,671 INFO  L471      AbstractCegarLoop]: Abstraction has 6893 states and 10335 transitions.
[2024-11-13 12:59:02,672 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 160.75) internal successors, (643), 4 states have internal predecessors, (643), 0 states have call successors, (0), 0 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 12:59:02,672 INFO  L276                IsEmpty]: Start isEmpty. Operand 6893 states and 10335 transitions.
[2024-11-13 12:59:02,691 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 645
[2024-11-13 12:59:02,691 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:59:02,692 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:02,692 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-13 12:59:02,692 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:59:02,693 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:59:02,693 INFO  L85        PathProgramCache]: Analyzing trace with hash -1348887661, now seen corresponding path program 1 times
[2024-11-13 12:59:02,694 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:59:02,694 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350023952]
[2024-11-13 12:59:02,694 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:59:02,694 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:59:03,120 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:59:04,902 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 12:59:04,903 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:59:04,903 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350023952]
[2024-11-13 12:59:04,903 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350023952] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:59:04,904 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:59:04,904 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 12:59:04,904 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522900008]
[2024-11-13 12:59:04,904 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:59:04,907 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 12:59:04,908 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:59:04,910 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 12:59:04,910 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 12:59:04,911 INFO  L87              Difference]: Start difference. First operand 6893 states and 10335 transitions. Second operand  has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 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 12:59:05,233 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:59:05,234 INFO  L93              Difference]: Finished difference Result 13506 states and 20251 transitions.
[2024-11-13 12:59:05,234 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:59:05,235 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 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 644
[2024-11-13 12:59:05,236 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:59:05,260 INFO  L225             Difference]: With dead ends: 13506
[2024-11-13 12:59:05,260 INFO  L226             Difference]: Without dead ends: 6895
[2024-11-13 12:59:05,268 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 12:59:05,270 INFO  L432           NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20652 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30983 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 12:59:05,271 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30983 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 12:59:05,284 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6895 states.
[2024-11-13 12:59:05,405 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 6895.
[2024-11-13 12:59:05,424 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6895 states, 6894 states have (on average 1.4994197853205686) internal successors, (10337), 6894 states have internal predecessors, (10337), 0 states have call successors, (0), 0 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 12:59:05,745 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6895 states to 6895 states and 10337 transitions.
[2024-11-13 12:59:05,746 INFO  L78                 Accepts]: Start accepts. Automaton has 6895 states and 10337 transitions. Word has length 644
[2024-11-13 12:59:05,750 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:59:05,751 INFO  L471      AbstractCegarLoop]: Abstraction has 6895 states and 10337 transitions.
[2024-11-13 12:59:05,755 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 161.0) internal successors, (644), 4 states have internal predecessors, (644), 0 states have call successors, (0), 0 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 12:59:05,756 INFO  L276                IsEmpty]: Start isEmpty. Operand 6895 states and 10337 transitions.
[2024-11-13 12:59:05,789 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 646
[2024-11-13 12:59:05,789 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:59:05,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:05,790 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-13 12:59:05,790 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:59:05,797 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:59:05,797 INFO  L85        PathProgramCache]: Analyzing trace with hash 36193674, now seen corresponding path program 1 times
[2024-11-13 12:59:05,797 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:59:05,797 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004726728]
[2024-11-13 12:59:05,798 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:59:05,798 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:59:06,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:59:07,771 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 12:59:07,771 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:59:07,772 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004726728]
[2024-11-13 12:59:07,772 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004726728] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:59:07,772 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:59:07,772 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 12:59:07,773 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960085815]
[2024-11-13 12:59:07,773 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:59:07,775 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 12:59:07,775 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:59:07,777 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 12:59:07,777 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 12:59:07,778 INFO  L87              Difference]: Start difference. First operand 6895 states and 10337 transitions. Second operand  has 4 states, 4 states have (on average 161.25) internal successors, (645), 4 states have internal predecessors, (645), 0 states have call successors, (0), 0 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 12:59:08,065 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:59:08,066 INFO  L93              Difference]: Finished difference Result 13510 states and 20255 transitions.
[2024-11-13 12:59:08,066 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:59:08,071 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 161.25) internal successors, (645), 4 states have internal predecessors, (645), 0 states have call successors, (0), 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 645
[2024-11-13 12:59:08,076 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:59:08,099 INFO  L225             Difference]: With dead ends: 13510
[2024-11-13 12:59:08,099 INFO  L226             Difference]: Without dead ends: 6897
[2024-11-13 12:59:08,107 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 12:59:08,108 INFO  L432           NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20652 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30983 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 12:59:08,109 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30983 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 12:59:08,123 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6897 states.
[2024-11-13 12:59:08,251 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6897 to 6897.
[2024-11-13 12:59:08,265 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6897 states, 6896 states have (on average 1.4992749419953597) internal successors, (10339), 6896 states have internal predecessors, (10339), 0 states have call successors, (0), 0 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 12:59:08,300 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6897 states to 6897 states and 10339 transitions.
[2024-11-13 12:59:08,300 INFO  L78                 Accepts]: Start accepts. Automaton has 6897 states and 10339 transitions. Word has length 645
[2024-11-13 12:59:08,302 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:59:08,302 INFO  L471      AbstractCegarLoop]: Abstraction has 6897 states and 10339 transitions.
[2024-11-13 12:59:08,302 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 161.25) internal successors, (645), 4 states have internal predecessors, (645), 0 states have call successors, (0), 0 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 12:59:08,304 INFO  L276                IsEmpty]: Start isEmpty. Operand 6897 states and 10339 transitions.
[2024-11-13 12:59:08,322 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 647
[2024-11-13 12:59:08,322 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:59:08,323 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:08,324 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-13 12:59:08,324 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:59:08,325 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:59:08,325 INFO  L85        PathProgramCache]: Analyzing trace with hash 2030894842, now seen corresponding path program 1 times
[2024-11-13 12:59:08,326 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:59:08,326 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293564074]
[2024-11-13 12:59:08,326 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:59:08,327 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:59:08,702 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:59:10,004 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 12:59:10,005 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:59:10,005 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293564074]
[2024-11-13 12:59:10,005 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293564074] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:59:10,005 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:59:10,005 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-13 12:59:10,006 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201022450]
[2024-11-13 12:59:10,006 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:59:10,007 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-13 12:59:10,007 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:59:10,010 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-13 12:59:10,010 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-13 12:59:10,011 INFO  L87              Difference]: Start difference. First operand 6897 states and 10339 transitions. Second operand  has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 0 states have call successors, (0), 0 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 12:59:10,586 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:59:10,586 INFO  L93              Difference]: Finished difference Result 20105 states and 30142 transitions.
[2024-11-13 12:59:10,587 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-13 12:59:10,587 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 0 states have call successors, (0), 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 646
[2024-11-13 12:59:10,590 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:59:10,642 INFO  L225             Difference]: With dead ends: 20105
[2024-11-13 12:59:10,642 INFO  L226             Difference]: Without dead ends: 13490
[2024-11-13 12:59:10,652 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-13 12:59:10,652 INFO  L432           NwaCegarLoop]: 10329 mSDtfsCounter, 9667 mSDsluCounter, 40883 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9667 SdHoareTripleChecker+Valid, 51212 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 12:59:10,653 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9667 Valid, 51212 Invalid, 33 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 12:59:10,679 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13490 states.
[2024-11-13 12:59:10,871 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13490 to 7885.
[2024-11-13 12:59:10,882 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7885 states, 7884 states have (on average 1.4993658041603246) internal successors, (11821), 7884 states have internal predecessors, (11821), 0 states have call successors, (0), 0 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 12:59:10,912 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7885 states to 7885 states and 11821 transitions.
[2024-11-13 12:59:10,912 INFO  L78                 Accepts]: Start accepts. Automaton has 7885 states and 11821 transitions. Word has length 646
[2024-11-13 12:59:10,914 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:59:10,914 INFO  L471      AbstractCegarLoop]: Abstraction has 7885 states and 11821 transitions.
[2024-11-13 12:59:10,915 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 107.66666666666667) internal successors, (646), 6 states have internal predecessors, (646), 0 states have call successors, (0), 0 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 12:59:10,915 INFO  L276                IsEmpty]: Start isEmpty. Operand 7885 states and 11821 transitions.
[2024-11-13 12:59:11,228 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3952
[2024-11-13 12:59:11,228 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:59:11,231 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-11-13 12:59:11,231 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-13 12:59:11,231 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:59:11,235 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:59:11,237 INFO  L85        PathProgramCache]: Analyzing trace with hash 27550416, now seen corresponding path program 1 times
[2024-11-13 12:59:11,238 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:59:11,238 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103451943]
[2024-11-13 12:59:11,242 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:59:11,242 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:59:22,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:59:33,932 INFO  L134       CoverageAnalysis]: Checked inductivity of 500 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked.
[2024-11-13 12:59:33,932 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:59:33,932 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103451943]
[2024-11-13 12:59:33,932 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103451943] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:59:33,932 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:59:33,933 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 12:59:33,933 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146587148]
[2024-11-13 12:59:33,933 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:59:33,939 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 12:59:33,939 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:59:33,942 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 12:59:33,942 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 12:59:33,944 INFO  L87              Difference]: Start difference. First operand 7885 states and 11821 transitions. Second operand  has 4 states, 4 states have (on average 865.0) internal successors, (3460), 4 states have internal predecessors, (3460), 0 states have call successors, (0), 0 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 12:59:34,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:59:34,158 INFO  L93              Difference]: Finished difference Result 14506 states and 21747 transitions.
[2024-11-13 12:59:34,159 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:59:34,160 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 865.0) internal successors, (3460), 4 states have internal predecessors, (3460), 0 states have call successors, (0), 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 3951
[2024-11-13 12:59:34,167 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:59:34,186 INFO  L225             Difference]: With dead ends: 14506
[2024-11-13 12:59:34,186 INFO  L226             Difference]: Without dead ends: 7889
[2024-11-13 12:59:34,195 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 12:59:34,198 INFO  L432           NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20652 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30983 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 12:59:34,198 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30983 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 12:59:34,212 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7889 states.
[2024-11-13 12:59:34,335 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7889 to 7887.
[2024-11-13 12:59:34,346 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7887 states, 7886 states have (on average 1.4992391580015216) internal successors, (11823), 7886 states have internal predecessors, (11823), 0 states have call successors, (0), 0 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 12:59:34,369 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7887 states to 7887 states and 11823 transitions.
[2024-11-13 12:59:34,370 INFO  L78                 Accepts]: Start accepts. Automaton has 7887 states and 11823 transitions. Word has length 3951
[2024-11-13 12:59:34,376 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:59:34,376 INFO  L471      AbstractCegarLoop]: Abstraction has 7887 states and 11823 transitions.
[2024-11-13 12:59:34,377 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 865.0) internal successors, (3460), 4 states have internal predecessors, (3460), 0 states have call successors, (0), 0 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 12:59:34,377 INFO  L276                IsEmpty]: Start isEmpty. Operand 7887 states and 11823 transitions.
[2024-11-13 12:59:34,485 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3953
[2024-11-13 12:59:34,486 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:59:34,488 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-11-13 12:59:34,488 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-13 12:59:34,488 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:59:34,489 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:59:34,491 INFO  L85        PathProgramCache]: Analyzing trace with hash 1968260237, now seen corresponding path program 1 times
[2024-11-13 12:59:34,492 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:59:34,492 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88451626]
[2024-11-13 12:59:34,493 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:59:34,493 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 12:59:41,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 12:59:51,362 INFO  L134       CoverageAnalysis]: Checked inductivity of 500 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked.
[2024-11-13 12:59:51,363 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 12:59:51,363 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88451626]
[2024-11-13 12:59:51,363 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88451626] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 12:59:51,363 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 12:59:51,363 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 12:59:51,364 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122783864]
[2024-11-13 12:59:51,364 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 12:59:51,367 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 12:59:51,367 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 12:59:51,371 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 12:59:51,371 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 12:59:51,372 INFO  L87              Difference]: Start difference. First operand 7887 states and 11823 transitions. Second operand  has 5 states, 5 states have (on average 692.6) internal successors, (3463), 5 states have internal predecessors, (3463), 0 states have call successors, (0), 0 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 12:59:51,639 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 12:59:51,639 INFO  L93              Difference]: Finished difference Result 14514 states and 21757 transitions.
[2024-11-13 12:59:51,640 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 12:59:51,641 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 692.6) internal successors, (3463), 5 states have internal predecessors, (3463), 0 states have call successors, (0), 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 3952
[2024-11-13 12:59:51,648 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 12:59:51,667 INFO  L225             Difference]: With dead ends: 14514
[2024-11-13 12:59:51,667 INFO  L226             Difference]: Without dead ends: 7891
[2024-11-13 12:59:51,676 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 12:59:51,678 INFO  L432           NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20652 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30983 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 12:59:51,679 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30983 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 12:59:51,694 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7891 states.
[2024-11-13 12:59:51,814 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7891 to 7889.
[2024-11-13 12:59:51,826 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7889 states, 7888 states have (on average 1.4991125760649087) internal successors, (11825), 7888 states have internal predecessors, (11825), 0 states have call successors, (0), 0 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 12:59:51,997 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7889 states to 7889 states and 11825 transitions.
[2024-11-13 12:59:51,997 INFO  L78                 Accepts]: Start accepts. Automaton has 7889 states and 11825 transitions. Word has length 3952
[2024-11-13 12:59:52,005 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 12:59:52,005 INFO  L471      AbstractCegarLoop]: Abstraction has 7889 states and 11825 transitions.
[2024-11-13 12:59:52,009 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 692.6) internal successors, (3463), 5 states have internal predecessors, (3463), 0 states have call successors, (0), 0 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 12:59:52,010 INFO  L276                IsEmpty]: Start isEmpty. Operand 7889 states and 11825 transitions.
[2024-11-13 12:59:52,145 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3954
[2024-11-13 12:59:52,145 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 12:59:52,148 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 12:59:52,148 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-13 12:59:52,148 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 12:59:52,149 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 12:59:52,151 INFO  L85        PathProgramCache]: Analyzing trace with hash -2044920393, now seen corresponding path program 1 times
[2024-11-13 12:59:52,151 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 12:59:52,151 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926015039]
[2024-11-13 12:59:52,152 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 12:59:52,153 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:00:00,103 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:13,252 INFO  L134       CoverageAnalysis]: Checked inductivity of 500 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked.
[2024-11-13 13:00:13,252 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:00:13,253 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926015039]
[2024-11-13 13:00:13,253 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926015039] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:00:13,253 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:00:13,253 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 13:00:13,254 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288793636]
[2024-11-13 13:00:13,254 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:00:13,257 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 13:00:13,258 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:00:13,261 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 13:00:13,261 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 13:00:13,262 INFO  L87              Difference]: Start difference. First operand 7889 states and 11825 transitions. Second operand  has 4 states, 4 states have (on average 866.5) internal successors, (3466), 4 states have internal predecessors, (3466), 0 states have call successors, (0), 0 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 13:00:13,700 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:00:13,701 INFO  L93              Difference]: Finished difference Result 14522 states and 21767 transitions.
[2024-11-13 13:00:13,701 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 13:00:13,702 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 866.5) internal successors, (3466), 4 states have internal predecessors, (3466), 0 states have call successors, (0), 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 3953
[2024-11-13 13:00:13,710 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:00:13,728 INFO  L225             Difference]: With dead ends: 14522
[2024-11-13 13:00:13,729 INFO  L226             Difference]: Without dead ends: 7893
[2024-11-13 13:00:13,737 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 13:00:13,738 INFO  L432           NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 20652 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30983 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 13:00:13,738 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30983 Invalid, 15 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 13:00:13,750 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7893 states.
[2024-11-13 13:00:13,860 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7893 to 7891.
[2024-11-13 13:00:13,871 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7891 states, 7890 states have (on average 1.4989860583016477) internal successors, (11827), 7890 states have internal predecessors, (11827), 0 states have call successors, (0), 0 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 13:00:13,884 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7891 states to 7891 states and 11827 transitions.
[2024-11-13 13:00:13,884 INFO  L78                 Accepts]: Start accepts. Automaton has 7891 states and 11827 transitions. Word has length 3953
[2024-11-13 13:00:13,891 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:00:13,891 INFO  L471      AbstractCegarLoop]: Abstraction has 7891 states and 11827 transitions.
[2024-11-13 13:00:13,892 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 866.5) internal successors, (3466), 4 states have internal predecessors, (3466), 0 states have call successors, (0), 0 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 13:00:13,892 INFO  L276                IsEmpty]: Start isEmpty. Operand 7891 states and 11827 transitions.
[2024-11-13 13:00:14,015 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3955
[2024-11-13 13:00:14,015 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 13:00:14,018 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-11-13 13:00:14,018 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-13 13:00:14,018 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:00:14,019 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:00:14,021 INFO  L85        PathProgramCache]: Analyzing trace with hash -275944154, now seen corresponding path program 1 times
[2024-11-13 13:00:14,021 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:00:14,021 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519099251]
[2024-11-13 13:00:14,023 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:14,024 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 13:00:20,262 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 13:00:34,668 INFO  L134       CoverageAnalysis]: Checked inductivity of 500 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked.
[2024-11-13 13:00:34,668 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 13:00:34,668 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519099251]
[2024-11-13 13:00:34,669 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519099251] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 13:00:34,669 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 13:00:34,669 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 13:00:34,669 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129804518]
[2024-11-13 13:00:34,669 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 13:00:34,673 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 13:00:34,673 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 13:00:34,676 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 13:00:34,676 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 13:00:34,677 INFO  L87              Difference]: Start difference. First operand 7891 states and 11827 transitions. Second operand  has 5 states, 5 states have (on average 693.8) internal successors, (3469), 5 states have internal predecessors, (3469), 0 states have call successors, (0), 0 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 13:00:34,874 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 13:00:34,874 INFO  L93              Difference]: Finished difference Result 14530 states and 21777 transitions.
[2024-11-13 13:00:34,875 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 13:00:34,876 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 693.8) internal successors, (3469), 5 states have internal predecessors, (3469), 0 states have call successors, (0), 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 3954
[2024-11-13 13:00:34,882 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 13:00:34,900 INFO  L225             Difference]: With dead ends: 14530
[2024-11-13 13:00:34,900 INFO  L226             Difference]: Without dead ends: 7895
[2024-11-13 13:00:34,908 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-13 13:00:34,908 INFO  L432           NwaCegarLoop]: 10331 mSDtfsCounter, 0 mSDsluCounter, 30977 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41308 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 13:00:34,909 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41308 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 13:00:34,922 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7895 states.
[2024-11-13 13:00:35,030 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7895 to 7893.
[2024-11-13 13:00:35,042 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7893 states, 7892 states have (on average 1.4988596046629499) internal successors, (11829), 7892 states have internal predecessors, (11829), 0 states have call successors, (0), 0 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 13:00:35,055 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7893 states to 7893 states and 11829 transitions.
[2024-11-13 13:00:35,056 INFO  L78                 Accepts]: Start accepts. Automaton has 7893 states and 11829 transitions. Word has length 3954
[2024-11-13 13:00:35,059 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 13:00:35,060 INFO  L471      AbstractCegarLoop]: Abstraction has 7893 states and 11829 transitions.
[2024-11-13 13:00:35,061 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 693.8) internal successors, (3469), 5 states have internal predecessors, (3469), 0 states have call successors, (0), 0 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 13:00:35,061 INFO  L276                IsEmpty]: Start isEmpty. Operand 7893 states and 11829 transitions.
[2024-11-13 13:00:35,526 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3956
[2024-11-13 13:00:35,526 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 13:00:35,529 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-11-13 13:00:35,530 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-13 13:00:35,530 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 13:00:35,531 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 13:00:35,534 INFO  L85        PathProgramCache]: Analyzing trace with hash -489980514, now seen corresponding path program 1 times
[2024-11-13 13:00:35,534 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 13:00:35,534 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23801261]
[2024-11-13 13:00:35,537 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 13:00:35,537 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms