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


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


Checking for ERROR reachability
Using default analysis
Version e7bb482b
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.train-gate.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 44c149df0ab6f9baaa58829f2aae44658e9aa88f979456293fc96eefc8a9de24
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-e7bb482
[2023-11-06 22:47:18,721 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-06 22:47:18,833 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf
[2023-11-06 22:47:18,843 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-06 22:47:18,843 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-06 22:47:18,882 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-06 22:47:18,883 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-06 22:47:18,884 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-06 22:47:18,890 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-06 22:47:18,895 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-06 22:47:18,896 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-06 22:47:18,897 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-06 22:47:18,897 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-06 22:47:18,899 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-06 22:47:18,900 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-06 22:47:18,900 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-06 22:47:18,901 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-06 22:47:18,901 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-06 22:47:18,902 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-06 22:47:18,902 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-06 22:47:18,903 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-06 22:47:18,903 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-06 22:47:18,904 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-06 22:47:18,905 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-06 22:47:18,905 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-06 22:47:18,906 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-06 22:47:18,906 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-06 22:47:18,907 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-06 22:47:18,907 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-11-06 22:47:18,908 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-06 22:47:18,909 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-06 22:47:18,909 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-06 22:47:18,910 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-06 22:47:18,910 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-06 22:47:18,910 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-06 22:47:18,911 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-06 22:47:18,911 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
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 -> 44c149df0ab6f9baaa58829f2aae44658e9aa88f979456293fc96eefc8a9de24
[2023-11-06 22:47:19,268 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-06 22:47:19,303 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-06 22:47:19,307 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-06 22:47:19,309 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-06 22:47:19,309 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-06 22:47:19,311 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.train-gate.4.prop1-func-interl.c
[2023-11-06 22:47:22,567 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-06 22:47:23,031 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-06 22:47:23,031 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.train-gate.4.prop1-func-interl.c
[2023-11-06 22:47:23,065 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/data/1878ba9d3/bbdddb6c3e6042709cfd516b15bef34f/FLAG6e2a13a9e
[2023-11-06 22:47:23,088 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/data/1878ba9d3/bbdddb6c3e6042709cfd516b15bef34f
[2023-11-06 22:47:23,094 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-06 22:47:23,097 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-06 22:47:23,103 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-06 22:47:23,104 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-06 22:47:23,110 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-06 22:47:23,111 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:47:23" (1/1) ...
[2023-11-06 22:47:23,112 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74f54cda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:23, skipping insertion in model container
[2023-11-06 22:47:23,113 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:47:23" (1/1) ...
[2023-11-06 22:47:23,237 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-06 22:47:23,507 WARN  L240   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_929b9d74-af26-411f-a937-e4fa57024be9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.train-gate.4.prop1-func-interl.c[1177,1190]
[2023-11-06 22:47:24,267 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-06 22:47:24,279 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-06 22:47:24,293 WARN  L240   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_929b9d74-af26-411f-a937-e4fa57024be9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.train-gate.4.prop1-func-interl.c[1177,1190]
[2023-11-06 22:47:24,729 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-06 22:47:24,746 INFO  L206         MainTranslator]: Completed translation
[2023-11-06 22:47:24,747 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24 WrapperNode
[2023-11-06 22:47:24,747 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-06 22:47:24,748 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-06 22:47:24,749 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-06 22:47:24,749 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-06 22:47:24,756 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (1/1) ...
[2023-11-06 22:47:24,940 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (1/1) ...
[2023-11-06 22:47:26,808 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15175
[2023-11-06 22:47:26,826 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-06 22:47:26,827 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-06 22:47:26,827 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-06 22:47:26,827 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-06 22:47:26,841 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (1/1) ...
[2023-11-06 22:47:26,842 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (1/1) ...
[2023-11-06 22:47:27,352 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (1/1) ...
[2023-11-06 22:47:27,360 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (1/1) ...
[2023-11-06 22:47:27,774 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (1/1) ...
[2023-11-06 22:47:27,950 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (1/1) ...
[2023-11-06 22:47:28,084 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (1/1) ...
[2023-11-06 22:47:28,135 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (1/1) ...
[2023-11-06 22:47:28,376 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-06 22:47:28,377 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-06 22:47:28,377 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-06 22:47:28,377 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-06 22:47:28,378 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (1/1) ...
[2023-11-06 22:47:28,385 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-06 22:47:28,397 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/z3
[2023-11-06 22:47:28,409 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-06 22:47:28,427 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_929b9d74-af26-411f-a937-e4fa57024be9/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-06 22:47:28,447 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-06 22:47:28,447 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-06 22:47:28,447 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-06 22:47:28,448 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-06 22:47:29,220 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-06 22:47:29,222 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-06 22:47:39,301 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-06 22:47:39,334 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-06 22:47:39,335 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-06 22:47:39,342 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:47:39 BoogieIcfgContainer
[2023-11-06 22:47:39,342 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-06 22:47:39,346 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-06 22:47:39,346 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-06 22:47:39,349 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-06 22:47:39,350 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:47:23" (1/3) ...
[2023-11-06 22:47:39,352 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc1e704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:47:39, skipping insertion in model container
[2023-11-06 22:47:39,352 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:47:24" (2/3) ...
[2023-11-06 22:47:39,353 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc1e704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:47:39, skipping insertion in model container
[2023-11-06 22:47:39,355 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:47:39" (3/3) ...
[2023-11-06 22:47:39,356 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.train-gate.4.prop1-func-interl.c
[2023-11-06 22:47:39,377 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-06 22:47:39,377 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-06 22:47:39,512 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-06 22:47:39,520 INFO  L357      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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@c5bbedb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-06 22:47:39,521 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-06 22:47:39,538 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3380 states, 3378 states have (on average 1.6660746003552398) internal successors, (5628), 3379 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:39,574 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 244
[2023-11-06 22:47:39,574 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:47:39,575 INFO  L195           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]
[2023-11-06 22:47:39,575 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:47:39,580 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:47:39,581 INFO  L85        PathProgramCache]: Analyzing trace with hash 1839104908, now seen corresponding path program 1 times
[2023-11-06 22:47:39,591 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:47:39,591 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460998360]
[2023-11-06 22:47:39,592 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:47:39,592 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:47:40,131 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:47:41,682 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:47:41,682 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:47:41,683 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460998360]
[2023-11-06 22:47:41,684 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460998360] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:47:41,684 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:47:41,684 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-06 22:47:41,686 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910027965]
[2023-11-06 22:47:41,688 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:47:41,695 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-06 22:47:41,695 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:47:41,738 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-06 22:47:41,739 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-06 22:47:41,751 INFO  L87              Difference]: Start difference. First operand  has 3380 states, 3378 states have (on average 1.6660746003552398) internal successors, (5628), 3379 states have internal predecessors, (5628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:46,995 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:47:46,995 INFO  L93              Difference]: Finished difference Result 9732 states and 16214 transitions.
[2023-11-06 22:47:46,997 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-06 22:47:46,998 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 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 243
[2023-11-06 22:47:47,000 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:47:47,047 INFO  L225             Difference]: With dead ends: 9732
[2023-11-06 22:47:47,047 INFO  L226             Difference]: Without dead ends: 6552
[2023-11-06 22:47:47,057 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-11-06 22:47:47,061 INFO  L413           NwaCegarLoop]: 4303 mSDtfsCounter, 15966 mSDsluCounter, 8599 mSDsCounter, 0 mSdLazyCounter, 3964 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15966 SdHoareTripleChecker+Valid, 12902 SdHoareTripleChecker+Invalid, 3965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2023-11-06 22:47:47,062 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [15966 Valid, 12902 Invalid, 3965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3964 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2023-11-06 22:47:47,091 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6552 states.
[2023-11-06 22:47:47,216 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6552 to 3529.
[2023-11-06 22:47:47,225 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3529 states, 3528 states have (on average 1.665249433106576) internal successors, (5875), 3528 states have internal predecessors, (5875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:47,242 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 5875 transitions.
[2023-11-06 22:47:47,243 INFO  L78                 Accepts]: Start accepts. Automaton has 3529 states and 5875 transitions. Word has length 243
[2023-11-06 22:47:47,245 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:47:47,245 INFO  L495      AbstractCegarLoop]: Abstraction has 3529 states and 5875 transitions.
[2023-11-06 22:47:47,245 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:47,246 INFO  L276                IsEmpty]: Start isEmpty. Operand 3529 states and 5875 transitions.
[2023-11-06 22:47:47,251 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 245
[2023-11-06 22:47:47,251 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:47:47,252 INFO  L195           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]
[2023-11-06 22:47:47,252 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-06 22:47:47,253 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:47:47,253 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:47:47,254 INFO  L85        PathProgramCache]: Analyzing trace with hash -256131290, now seen corresponding path program 1 times
[2023-11-06 22:47:47,254 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:47:47,254 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669311960]
[2023-11-06 22:47:47,254 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:47:47,255 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:47:47,421 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:47:48,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:47:48,499 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:47:48,499 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669311960]
[2023-11-06 22:47:48,499 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669311960] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:47:48,500 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:47:48,500 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 22:47:48,500 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102905386]
[2023-11-06 22:47:48,500 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:47:48,502 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 22:47:48,503 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:47:48,504 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 22:47:48,504 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 22:47:48,505 INFO  L87              Difference]: Start difference. First operand 3529 states and 5875 transitions. Second operand  has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:48,673 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:47:48,673 INFO  L93              Difference]: Finished difference Result 3533 states and 5879 transitions.
[2023-11-06 22:47:48,674 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 22:47:48,674 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 244
[2023-11-06 22:47:48,676 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:47:48,697 INFO  L225             Difference]: With dead ends: 3533
[2023-11-06 22:47:48,698 INFO  L226             Difference]: Without dead ends: 3531
[2023-11-06 22:47:48,699 INFO  L412           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
[2023-11-06 22:47:48,701 INFO  L413           NwaCegarLoop]: 5620 mSDtfsCounter, 1 mSDsluCounter, 11234 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 16854 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-06 22:47:48,702 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 16854 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-06 22:47:48,710 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3531 states.
[2023-11-06 22:47:48,782 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 3531.
[2023-11-06 22:47:48,792 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3531 states, 3530 states have (on average 1.664872521246459) internal successors, (5877), 3530 states have internal predecessors, (5877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:48,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3531 states to 3531 states and 5877 transitions.
[2023-11-06 22:47:48,813 INFO  L78                 Accepts]: Start accepts. Automaton has 3531 states and 5877 transitions. Word has length 244
[2023-11-06 22:47:48,815 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:47:48,815 INFO  L495      AbstractCegarLoop]: Abstraction has 3531 states and 5877 transitions.
[2023-11-06 22:47:48,816 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:48,816 INFO  L276                IsEmpty]: Start isEmpty. Operand 3531 states and 5877 transitions.
[2023-11-06 22:47:48,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 246
[2023-11-06 22:47:48,820 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:47:48,821 INFO  L195           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]
[2023-11-06 22:47:48,821 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-06 22:47:48,821 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:47:48,832 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:47:48,832 INFO  L85        PathProgramCache]: Analyzing trace with hash 651590978, now seen corresponding path program 1 times
[2023-11-06 22:47:48,833 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:47:48,833 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115585110]
[2023-11-06 22:47:48,834 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:47:48,834 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:47:48,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:47:49,454 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:47:49,455 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:47:49,455 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115585110]
[2023-11-06 22:47:49,456 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115585110] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:47:49,457 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:47:49,458 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 22:47:49,458 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26809722]
[2023-11-06 22:47:49,458 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:47:49,459 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 22:47:49,459 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:47:49,460 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 22:47:49,461 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 22:47:49,461 INFO  L87              Difference]: Start difference. First operand 3531 states and 5877 transitions. Second operand  has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:49,612 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:47:49,613 INFO  L93              Difference]: Finished difference Result 6712 states and 11173 transitions.
[2023-11-06 22:47:49,613 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 22:47:49,613 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 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 245
[2023-11-06 22:47:49,614 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:47:49,634 INFO  L225             Difference]: With dead ends: 6712
[2023-11-06 22:47:49,634 INFO  L226             Difference]: Without dead ends: 3534
[2023-11-06 22:47:49,645 INFO  L412           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
[2023-11-06 22:47:49,649 INFO  L413           NwaCegarLoop]: 5620 mSDtfsCounter, 1 mSDsluCounter, 11231 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 16851 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-06 22:47:49,650 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 16851 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-06 22:47:49,658 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3534 states.
[2023-11-06 22:47:49,728 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3534 to 3533.
[2023-11-06 22:47:49,737 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3533 states, 3532 states have (on average 1.6644960362400907) internal successors, (5879), 3532 states have internal predecessors, (5879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:49,753 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 5879 transitions.
[2023-11-06 22:47:49,753 INFO  L78                 Accepts]: Start accepts. Automaton has 3533 states and 5879 transitions. Word has length 245
[2023-11-06 22:47:49,754 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:47:49,755 INFO  L495      AbstractCegarLoop]: Abstraction has 3533 states and 5879 transitions.
[2023-11-06 22:47:49,757 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:49,761 INFO  L276                IsEmpty]: Start isEmpty. Operand 3533 states and 5879 transitions.
[2023-11-06 22:47:49,764 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 247
[2023-11-06 22:47:49,765 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:47:49,765 INFO  L195           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]
[2023-11-06 22:47:49,765 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-06 22:47:49,766 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:47:49,768 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:47:49,769 INFO  L85        PathProgramCache]: Analyzing trace with hash 289060162, now seen corresponding path program 1 times
[2023-11-06 22:47:49,769 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:47:49,774 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548626406]
[2023-11-06 22:47:49,775 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:47:49,775 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:47:49,893 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:47:50,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:47:50,380 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:47:50,380 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548626406]
[2023-11-06 22:47:50,380 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548626406] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:47:50,380 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:47:50,381 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-06 22:47:50,381 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338132741]
[2023-11-06 22:47:50,381 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:47:50,382 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-06 22:47:50,382 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:47:50,383 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-06 22:47:50,383 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-06 22:47:50,384 INFO  L87              Difference]: Start difference. First operand 3533 states and 5879 transitions. Second operand  has 5 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:50,746 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:47:50,746 INFO  L93              Difference]: Finished difference Result 9896 states and 16471 transitions.
[2023-11-06 22:47:50,747 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2023-11-06 22:47:50,747 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246
[2023-11-06 22:47:50,748 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:47:50,784 INFO  L225             Difference]: With dead ends: 9896
[2023-11-06 22:47:50,784 INFO  L226             Difference]: Without dead ends: 6716
[2023-11-06 22:47:50,790 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-11-06 22:47:50,792 INFO  L413           NwaCegarLoop]: 5871 mSDtfsCounter, 10567 mSDsluCounter, 17100 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10567 SdHoareTripleChecker+Valid, 22971 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-06 22:47:50,792 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10567 Valid, 22971 Invalid, 28 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-06 22:47:50,805 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6716 states.
[2023-11-06 22:47:50,906 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6716 to 3541.
[2023-11-06 22:47:50,915 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3541 states, 3540 states have (on average 1.6635593220338982) internal successors, (5889), 3540 states have internal predecessors, (5889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:50,934 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3541 states to 3541 states and 5889 transitions.
[2023-11-06 22:47:50,934 INFO  L78                 Accepts]: Start accepts. Automaton has 3541 states and 5889 transitions. Word has length 246
[2023-11-06 22:47:50,935 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:47:50,935 INFO  L495      AbstractCegarLoop]: Abstraction has 3541 states and 5889 transitions.
[2023-11-06 22:47:50,936 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 49.2) internal successors, (246), 5 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:50,936 INFO  L276                IsEmpty]: Start isEmpty. Operand 3541 states and 5889 transitions.
[2023-11-06 22:47:50,940 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 248
[2023-11-06 22:47:50,940 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:47:50,940 INFO  L195           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]
[2023-11-06 22:47:50,941 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-06 22:47:50,941 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:47:50,942 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:47:50,942 INFO  L85        PathProgramCache]: Analyzing trace with hash -921962880, now seen corresponding path program 1 times
[2023-11-06 22:47:50,942 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:47:50,943 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147974470]
[2023-11-06 22:47:50,943 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:47:50,943 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:47:51,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:47:51,691 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:47:51,692 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:47:51,692 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147974470]
[2023-11-06 22:47:51,692 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147974470] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:47:51,693 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:47:51,693 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-06 22:47:51,694 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020982775]
[2023-11-06 22:47:51,695 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:47:51,695 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-06 22:47:51,696 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:47:51,697 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-06 22:47:51,697 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-06 22:47:51,697 INFO  L87              Difference]: Start difference. First operand 3541 states and 5889 transitions. Second operand  has 5 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:52,103 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:47:52,104 INFO  L93              Difference]: Finished difference Result 9893 states and 16463 transitions.
[2023-11-06 22:47:52,104 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-06 22:47:52,106 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 0 states have call successors, (0), 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 247
[2023-11-06 22:47:52,107 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:47:52,152 INFO  L225             Difference]: With dead ends: 9893
[2023-11-06 22:47:52,152 INFO  L226             Difference]: Without dead ends: 6704
[2023-11-06 22:47:52,158 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-11-06 22:47:52,159 INFO  L413           NwaCegarLoop]: 5861 mSDtfsCounter, 21466 mSDsluCounter, 11229 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21466 SdHoareTripleChecker+Valid, 17090 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-06 22:47:52,160 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [21466 Valid, 17090 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-06 22:47:52,173 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6704 states.
[2023-11-06 22:47:52,273 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6704 to 3537.
[2023-11-06 22:47:52,290 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3537 states, 3536 states have (on average 1.6637443438914028) internal successors, (5883), 3536 states have internal predecessors, (5883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:52,316 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3537 states to 3537 states and 5883 transitions.
[2023-11-06 22:47:52,317 INFO  L78                 Accepts]: Start accepts. Automaton has 3537 states and 5883 transitions. Word has length 247
[2023-11-06 22:47:52,317 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:47:52,318 INFO  L495      AbstractCegarLoop]: Abstraction has 3537 states and 5883 transitions.
[2023-11-06 22:47:52,318 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 49.4) internal successors, (247), 5 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:47:52,319 INFO  L276                IsEmpty]: Start isEmpty. Operand 3537 states and 5883 transitions.
[2023-11-06 22:47:52,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2365
[2023-11-06 22:47:52,493 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:47:52,495 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-06 22:47:52,496 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-06 22:47:52,496 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:47:52,497 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:47:52,498 INFO  L85        PathProgramCache]: Analyzing trace with hash -1726171097, now seen corresponding path program 1 times
[2023-11-06 22:47:52,498 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:47:52,498 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560261393]
[2023-11-06 22:47:52,499 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:47:52,499 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:47:57,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:48:04,474 INFO  L134       CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:48:04,474 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:48:04,475 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560261393]
[2023-11-06 22:48:04,475 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560261393] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:48:04,475 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:48:04,475 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-06 22:48:04,476 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566004261]
[2023-11-06 22:48:04,476 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:48:04,479 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-06 22:48:04,479 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:48:04,482 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-06 22:48:04,483 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2023-11-06 22:48:04,485 INFO  L87              Difference]: Start difference. First operand 3537 states and 5883 transitions. Second operand  has 6 states, 6 states have (on average 394.0) internal successors, (2364), 6 states have internal predecessors, (2364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:05,112 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:48:05,112 INFO  L93              Difference]: Finished difference Result 14985 states and 24948 transitions.
[2023-11-06 22:48:05,113 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-11-06 22:48:05,114 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 394.0) internal successors, (2364), 6 states have internal predecessors, (2364), 0 states have call successors, (0), 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 2364
[2023-11-06 22:48:05,119 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:48:05,142 INFO  L225             Difference]: With dead ends: 14985
[2023-11-06 22:48:05,142 INFO  L226             Difference]: Without dead ends: 11800
[2023-11-06 22:48:05,149 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2023-11-06 22:48:05,151 INFO  L413           NwaCegarLoop]: 11134 mSDtfsCounter, 22375 mSDsluCounter, 32699 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22375 SdHoareTripleChecker+Valid, 43833 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-06 22:48:05,154 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [22375 Valid, 43833 Invalid, 56 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-06 22:48:05,170 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11800 states.
[2023-11-06 22:48:05,348 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11800 to 6084.
[2023-11-06 22:48:05,360 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6084 states, 6083 states have (on average 1.6646391583100444) internal successors, (10126), 6083 states have internal predecessors, (10126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:05,382 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6084 states to 6084 states and 10126 transitions.
[2023-11-06 22:48:05,383 INFO  L78                 Accepts]: Start accepts. Automaton has 6084 states and 10126 transitions. Word has length 2364
[2023-11-06 22:48:05,388 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:48:05,388 INFO  L495      AbstractCegarLoop]: Abstraction has 6084 states and 10126 transitions.
[2023-11-06 22:48:05,389 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 394.0) internal successors, (2364), 6 states have internal predecessors, (2364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:05,389 INFO  L276                IsEmpty]: Start isEmpty. Operand 6084 states and 10126 transitions.
[2023-11-06 22:48:05,443 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2366
[2023-11-06 22:48:05,443 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:48:05,445 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-06 22:48:05,447 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-06 22:48:05,448 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:48:05,448 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:48:05,449 INFO  L85        PathProgramCache]: Analyzing trace with hash 1540186395, now seen corresponding path program 1 times
[2023-11-06 22:48:05,449 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:48:05,450 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684842121]
[2023-11-06 22:48:05,450 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:48:05,450 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:48:08,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:48:13,776 INFO  L134       CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:48:13,777 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:48:13,777 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684842121]
[2023-11-06 22:48:13,777 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684842121] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:48:13,777 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:48:13,778 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 22:48:13,778 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294370518]
[2023-11-06 22:48:13,778 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:48:13,782 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 22:48:13,783 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:48:13,786 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 22:48:13,787 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 22:48:13,788 INFO  L87              Difference]: Start difference. First operand 6084 states and 10126 transitions. Second operand  has 4 states, 4 states have (on average 591.25) internal successors, (2365), 4 states have internal predecessors, (2365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:14,017 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:48:14,018 INFO  L93              Difference]: Finished difference Result 14984 states and 24943 transitions.
[2023-11-06 22:48:14,018 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 22:48:14,020 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 591.25) internal successors, (2365), 4 states have internal predecessors, (2365), 0 states have call successors, (0), 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 2365
[2023-11-06 22:48:14,022 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:48:14,041 INFO  L225             Difference]: With dead ends: 14984
[2023-11-06 22:48:14,041 INFO  L226             Difference]: Without dead ends: 9252
[2023-11-06 22:48:14,051 INFO  L412           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
[2023-11-06 22:48:14,054 INFO  L413           NwaCegarLoop]: 6892 mSDtfsCounter, 5270 mSDsluCounter, 12499 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5270 SdHoareTripleChecker+Valid, 19391 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-06 22:48:14,055 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5270 Valid, 19391 Invalid, 19 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-06 22:48:14,070 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9252 states.
[2023-11-06 22:48:14,202 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9252 to 6086.
[2023-11-06 22:48:14,214 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6086 states, 6085 states have (on average 1.6644207066557108) internal successors, (10128), 6085 states have internal predecessors, (10128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:14,228 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 10128 transitions.
[2023-11-06 22:48:14,228 INFO  L78                 Accepts]: Start accepts. Automaton has 6086 states and 10128 transitions. Word has length 2365
[2023-11-06 22:48:14,230 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:48:14,230 INFO  L495      AbstractCegarLoop]: Abstraction has 6086 states and 10128 transitions.
[2023-11-06 22:48:14,232 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 591.25) internal successors, (2365), 4 states have internal predecessors, (2365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:14,232 INFO  L276                IsEmpty]: Start isEmpty. Operand 6086 states and 10128 transitions.
[2023-11-06 22:48:14,401 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2367
[2023-11-06 22:48:14,401 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:48:14,403 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-06 22:48:14,403 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-06 22:48:14,403 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:48:14,403 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:48:14,406 INFO  L85        PathProgramCache]: Analyzing trace with hash 1715418049, now seen corresponding path program 1 times
[2023-11-06 22:48:14,406 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:48:14,406 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584430060]
[2023-11-06 22:48:14,407 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:48:14,407 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:48:16,570 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:48:22,589 INFO  L134       CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:48:22,589 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:48:22,589 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584430060]
[2023-11-06 22:48:22,590 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584430060] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:48:22,590 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:48:22,590 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-06 22:48:22,591 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089574696]
[2023-11-06 22:48:22,591 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:48:22,595 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-06 22:48:22,595 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:48:22,599 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-06 22:48:22,599 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2023-11-06 22:48:22,600 INFO  L87              Difference]: Start difference. First operand 6086 states and 10128 transitions. Second operand  has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:23,344 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:48:23,344 INFO  L93              Difference]: Finished difference Result 27448 states and 45707 transitions.
[2023-11-06 22:48:23,345 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-11-06 22:48:23,345 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 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 2366
[2023-11-06 22:48:23,350 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:48:23,387 INFO  L225             Difference]: With dead ends: 27448
[2023-11-06 22:48:23,387 INFO  L226             Difference]: Without dead ends: 21714
[2023-11-06 22:48:23,396 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110
[2023-11-06 22:48:23,397 INFO  L413           NwaCegarLoop]: 11134 mSDtfsCounter, 22191 mSDsluCounter, 37855 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22191 SdHoareTripleChecker+Valid, 48989 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-06 22:48:23,398 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [22191 Valid, 48989 Invalid, 66 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-06 22:48:23,415 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21714 states.
[2023-11-06 22:48:23,558 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21714 to 6086.
[2023-11-06 22:48:23,567 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6086 states, 6085 states have (on average 1.6644207066557108) internal successors, (10128), 6085 states have internal predecessors, (10128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:23,579 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 10128 transitions.
[2023-11-06 22:48:23,579 INFO  L78                 Accepts]: Start accepts. Automaton has 6086 states and 10128 transitions. Word has length 2366
[2023-11-06 22:48:23,583 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:48:23,583 INFO  L495      AbstractCegarLoop]: Abstraction has 6086 states and 10128 transitions.
[2023-11-06 22:48:23,584 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 338.0) internal successors, (2366), 7 states have internal predecessors, (2366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:23,584 INFO  L276                IsEmpty]: Start isEmpty. Operand 6086 states and 10128 transitions.
[2023-11-06 22:48:23,637 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2368
[2023-11-06 22:48:23,637 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:48:23,639 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-06 22:48:23,640 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-06 22:48:23,640 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:48:23,640 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:48:23,641 INFO  L85        PathProgramCache]: Analyzing trace with hash -1535157545, now seen corresponding path program 1 times
[2023-11-06 22:48:23,642 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:48:23,642 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621128898]
[2023-11-06 22:48:23,642 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:48:23,643 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:48:25,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:48:30,417 INFO  L134       CoverageAnalysis]: Checked inductivity of 108 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:48:30,417 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:48:30,417 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621128898]
[2023-11-06 22:48:30,418 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621128898] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:48:30,418 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:48:30,418 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-06 22:48:30,418 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741723965]
[2023-11-06 22:48:30,419 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:48:30,422 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-06 22:48:30,422 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:48:30,425 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-06 22:48:30,425 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-06 22:48:30,426 INFO  L87              Difference]: Start difference. First operand 6086 states and 10128 transitions. Second operand  has 5 states, 5 states have (on average 473.4) internal successors, (2367), 5 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:30,577 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:48:30,577 INFO  L93              Difference]: Finished difference Result 15056 states and 25058 transitions.
[2023-11-06 22:48:30,577 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 22:48:30,578 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 473.4) internal successors, (2367), 5 states have internal predecessors, (2367), 0 states have call successors, (0), 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 2367
[2023-11-06 22:48:30,580 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:48:30,599 INFO  L225             Difference]: With dead ends: 15056
[2023-11-06 22:48:30,599 INFO  L226             Difference]: Without dead ends: 9322
[2023-11-06 22:48:30,607 INFO  L412           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
[2023-11-06 22:48:30,607 INFO  L413           NwaCegarLoop]: 7007 mSDtfsCounter, 5270 mSDsluCounter, 17883 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5270 SdHoareTripleChecker+Valid, 24890 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-06 22:48:30,608 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5270 Valid, 24890 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-06 22:48:30,617 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9322 states.
[2023-11-06 22:48:30,707 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9322 to 6088.
[2023-11-06 22:48:30,716 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6088 states, 6087 states have (on average 1.664202398554296) internal successors, (10130), 6087 states have internal predecessors, (10130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:30,724 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6088 states to 6088 states and 10130 transitions.
[2023-11-06 22:48:30,725 INFO  L78                 Accepts]: Start accepts. Automaton has 6088 states and 10130 transitions. Word has length 2367
[2023-11-06 22:48:30,726 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:48:30,726 INFO  L495      AbstractCegarLoop]: Abstraction has 6088 states and 10130 transitions.
[2023-11-06 22:48:30,727 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 473.4) internal successors, (2367), 5 states have internal predecessors, (2367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:30,727 INFO  L276                IsEmpty]: Start isEmpty. Operand 6088 states and 10130 transitions.
[2023-11-06 22:48:30,778 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2369
[2023-11-06 22:48:30,779 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:48:30,780 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-06 22:48:30,781 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-11-06 22:48:30,781 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:48:30,782 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:48:30,783 INFO  L85        PathProgramCache]: Analyzing trace with hash 1266938139, now seen corresponding path program 1 times
[2023-11-06 22:48:30,783 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:48:30,783 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239362370]
[2023-11-06 22:48:30,784 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:48:30,784 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:48:32,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:48:37,243 INFO  L134       CoverageAnalysis]: Checked inductivity of 108 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked.
[2023-11-06 22:48:37,243 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:48:37,243 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239362370]
[2023-11-06 22:48:37,244 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239362370] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:48:37,244 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:48:37,244 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 22:48:37,244 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672488498]
[2023-11-06 22:48:37,245 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:48:37,247 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 22:48:37,248 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:48:37,250 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 22:48:37,251 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 22:48:37,252 INFO  L87              Difference]: Start difference. First operand 6088 states and 10130 transitions. Second operand  has 4 states, 4 states have (on average 567.0) internal successors, (2268), 4 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:37,412 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:48:37,412 INFO  L93              Difference]: Finished difference Result 17548 states and 29207 transitions.
[2023-11-06 22:48:37,413 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 22:48:37,413 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 567.0) internal successors, (2268), 4 states have internal predecessors, (2268), 0 states have call successors, (0), 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 2368
[2023-11-06 22:48:37,419 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:48:37,441 INFO  L225             Difference]: With dead ends: 17548
[2023-11-06 22:48:37,442 INFO  L226             Difference]: Without dead ends: 11812
[2023-11-06 22:48:37,450 INFO  L412           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
[2023-11-06 22:48:37,450 INFO  L413           NwaCegarLoop]: 10898 mSDtfsCounter, 5276 mSDsluCounter, 16504 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5276 SdHoareTripleChecker+Valid, 27402 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-06 22:48:37,451 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5276 Valid, 27402 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-06 22:48:37,462 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11812 states.
[2023-11-06 22:48:37,590 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11812 to 6088.
[2023-11-06 22:48:37,599 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6088 states, 6087 states have (on average 1.664202398554296) internal successors, (10130), 6087 states have internal predecessors, (10130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:37,607 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6088 states to 6088 states and 10130 transitions.
[2023-11-06 22:48:37,608 INFO  L78                 Accepts]: Start accepts. Automaton has 6088 states and 10130 transitions. Word has length 2368
[2023-11-06 22:48:37,611 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:48:37,612 INFO  L495      AbstractCegarLoop]: Abstraction has 6088 states and 10130 transitions.
[2023-11-06 22:48:37,613 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 567.0) internal successors, (2268), 4 states have internal predecessors, (2268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:37,613 INFO  L276                IsEmpty]: Start isEmpty. Operand 6088 states and 10130 transitions.
[2023-11-06 22:48:37,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2370
[2023-11-06 22:48:37,662 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:48:37,664 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-06 22:48:37,665 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-11-06 22:48:37,665 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:48:37,665 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:48:37,666 INFO  L85        PathProgramCache]: Analyzing trace with hash 509671537, now seen corresponding path program 1 times
[2023-11-06 22:48:37,666 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:48:37,667 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592996429]
[2023-11-06 22:48:37,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:48:37,667 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:48:41,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:48:48,644 INFO  L134       CoverageAnalysis]: Checked inductivity of 109 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:48:48,645 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:48:48,645 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592996429]
[2023-11-06 22:48:48,645 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592996429] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:48:48,645 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:48:48,646 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-06 22:48:48,646 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462690780]
[2023-11-06 22:48:48,646 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:48:48,649 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-06 22:48:48,649 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:48:48,652 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-06 22:48:48,653 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-06 22:48:48,654 INFO  L87              Difference]: Start difference. First operand 6088 states and 10130 transitions. Second operand  has 5 states, 5 states have (on average 473.8) internal successors, (2369), 5 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:50,696 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2023-11-06 22:48:51,096 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:48:51,096 INFO  L93              Difference]: Finished difference Result 11828 states and 19684 transitions.
[2023-11-06 22:48:51,096 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-06 22:48:51,097 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 473.8) internal successors, (2369), 5 states have internal predecessors, (2369), 0 states have call successors, (0), 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 2369
[2023-11-06 22:48:51,098 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:48:51,110 INFO  L225             Difference]: With dead ends: 11828
[2023-11-06 22:48:51,110 INFO  L226             Difference]: Without dead ends: 6092
[2023-11-06 22:48:51,117 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-06 22:48:51,117 INFO  L413           NwaCegarLoop]: 5577 mSDtfsCounter, 5346 mSDsluCounter, 11151 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5346 SdHoareTripleChecker+Valid, 16728 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2023-11-06 22:48:51,118 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [5346 Valid, 16728 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time]
[2023-11-06 22:48:51,126 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6092 states.
[2023-11-06 22:48:51,213 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6092 to 6090.
[2023-11-06 22:48:51,222 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6090 states, 6089 states have (on average 1.6639842338643456) internal successors, (10132), 6089 states have internal predecessors, (10132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:51,230 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6090 states to 6090 states and 10132 transitions.
[2023-11-06 22:48:51,231 INFO  L78                 Accepts]: Start accepts. Automaton has 6090 states and 10132 transitions. Word has length 2369
[2023-11-06 22:48:51,232 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:48:51,232 INFO  L495      AbstractCegarLoop]: Abstraction has 6090 states and 10132 transitions.
[2023-11-06 22:48:51,233 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 473.8) internal successors, (2369), 5 states have internal predecessors, (2369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:48:51,233 INFO  L276                IsEmpty]: Start isEmpty. Operand 6090 states and 10132 transitions.
[2023-11-06 22:48:51,285 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2371
[2023-11-06 22:48:51,285 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:48:51,287 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-11-06 22:48:51,287 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2023-11-06 22:48:51,288 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:48:51,288 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:48:51,289 INFO  L85        PathProgramCache]: Analyzing trace with hash -409414457, now seen corresponding path program 1 times
[2023-11-06 22:48:51,290 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:48:51,290 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47949179]
[2023-11-06 22:48:51,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:48:51,291 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:48:54,077 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:48:59,544 INFO  L134       CoverageAnalysis]: Checked inductivity of 109 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:48:59,544 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:48:59,545 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47949179]
[2023-11-06 22:48:59,545 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47949179] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:48:59,545 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:48:59,545 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2023-11-06 22:48:59,546 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816978664]
[2023-11-06 22:48:59,546 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:48:59,549 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-11-06 22:48:59,549 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:48:59,552 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-11-06 22:48:59,552 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2023-11-06 22:48:59,553 INFO  L87              Difference]: Start difference. First operand 6090 states and 10132 transitions. Second operand  has 8 states, 8 states have (on average 296.25) internal successors, (2370), 8 states have internal predecessors, (2370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:49:02,398 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []