./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version e7bb482b
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/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_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/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_f035a5c6-6924-4df8-9280-5c4515cf75e0/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 6f032a278e247c25f95ab2bc0e622975c4cd6e35f7ad8b672dec44dde069d0ec
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-e7bb482
[2023-11-06 23:02:05,510 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-06 23:02:05,584 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf
[2023-11-06 23:02:05,589 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-06 23:02:05,590 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-06 23:02:05,617 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-06 23:02:05,618 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-06 23:02:05,618 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-06 23:02:05,619 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-06 23:02:05,620 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-06 23:02:05,621 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-06 23:02:05,621 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-06 23:02:05,622 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-06 23:02:05,622 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-06 23:02:05,623 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-06 23:02:05,624 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-06 23:02:05,624 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-06 23:02:05,625 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-06 23:02:05,625 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-06 23:02:05,626 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-06 23:02:05,627 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-06 23:02:05,627 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-06 23:02:05,628 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-06 23:02:05,629 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-06 23:02:05,629 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-06 23:02:05,630 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-06 23:02:05,630 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-06 23:02:05,631 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-06 23:02:05,631 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-11-06 23:02:05,632 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-06 23:02:05,632 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-06 23:02:05,633 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-06 23:02:05,634 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-06 23:02:05,634 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-06 23:02:05,634 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-06 23:02:05,635 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-06 23:02:05,635 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_f035a5c6-6924-4df8-9280-5c4515cf75e0/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_f035a5c6-6924-4df8-9280-5c4515cf75e0/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 -> 6f032a278e247c25f95ab2bc0e622975c4cd6e35f7ad8b672dec44dde069d0ec
[2023-11-06 23:02:05,960 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-06 23:02:05,994 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-06 23:02:05,996 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-06 23:02:05,998 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-06 23:02:05,999 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-06 23:02:06,000 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c
[2023-11-06 23:02:09,172 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-06 23:02:09,784 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-06 23:02:09,785 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c
[2023-11-06 23:02:09,856 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/data/3e6e980b2/04ab309dc3c6436c9b1aba73ff5c3025/FLAGf8f73e3a1
[2023-11-06 23:02:09,874 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/data/3e6e980b2/04ab309dc3c6436c9b1aba73ff5c3025
[2023-11-06 23:02:09,880 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-06 23:02:09,883 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-06 23:02:09,887 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-06 23:02:09,888 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-06 23:02:09,893 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-06 23:02:09,896 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:02:09" (1/1) ...
[2023-11-06 23:02:09,897 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fccb33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:09, skipping insertion in model container
[2023-11-06 23:02:09,898 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:02:09" (1/1) ...
[2023-11-06 23:02:10,128 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-06 23:02:10,475 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_f035a5c6-6924-4df8-9280-5c4515cf75e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c[1175,1188]
[2023-11-06 23:02:11,897 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-06 23:02:11,908 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-06 23:02:11,920 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_f035a5c6-6924-4df8-9280-5c4515cf75e0/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synapse.2.prop1-back-serstep.c[1175,1188]
[2023-11-06 23:02:12,772 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-06 23:02:12,788 INFO  L206         MainTranslator]: Completed translation
[2023-11-06 23:02:12,789 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12 WrapperNode
[2023-11-06 23:02:12,789 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-06 23:02:12,790 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-06 23:02:12,790 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-06 23:02:12,790 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-06 23:02:12,798 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (1/1) ...
[2023-11-06 23:02:13,242 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (1/1) ...
[2023-11-06 23:02:16,794 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37613
[2023-11-06 23:02:16,794 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-06 23:02:16,795 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-06 23:02:16,795 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-06 23:02:16,795 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-06 23:02:16,807 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (1/1) ...
[2023-11-06 23:02:16,807 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (1/1) ...
[2023-11-06 23:02:17,898 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (1/1) ...
[2023-11-06 23:02:17,912 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (1/1) ...
[2023-11-06 23:02:19,316 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (1/1) ...
[2023-11-06 23:02:19,445 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (1/1) ...
[2023-11-06 23:02:19,797 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (1/1) ...
[2023-11-06 23:02:19,916 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (1/1) ...
[2023-11-06 23:02:20,604 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-06 23:02:20,609 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-06 23:02:20,609 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-06 23:02:20,609 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-06 23:02:20,610 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (1/1) ...
[2023-11-06 23:02:20,621 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-06 23:02:20,634 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/z3
[2023-11-06 23:02:20,651 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-06 23:02:20,655 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-06 23:02:20,682 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-06 23:02:20,682 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-06 23:02:20,683 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-06 23:02:20,683 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-06 23:02:22,347 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-06 23:02:22,349 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-06 23:02:50,166 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-06 23:02:50,212 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-06 23:02:50,213 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-06 23:02:50,222 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:02:50 BoogieIcfgContainer
[2023-11-06 23:02:50,223 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-06 23:02:50,225 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-06 23:02:50,226 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-06 23:02:50,229 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-06 23:02:50,229 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:02:09" (1/3) ...
[2023-11-06 23:02:50,230 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2fb98a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:02:50, skipping insertion in model container
[2023-11-06 23:02:50,230 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:02:12" (2/3) ...
[2023-11-06 23:02:50,231 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2fb98a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:02:50, skipping insertion in model container
[2023-11-06 23:02:50,231 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:02:50" (3/3) ...
[2023-11-06 23:02:50,232 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synapse.2.prop1-back-serstep.c
[2023-11-06 23:02:50,251 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-06 23:02:50,252 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-06 23:02:50,447 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-06 23:02:50,454 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;@705eb789, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-06 23:02:50,455 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-06 23:02:50,483 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8311 states, 8309 states have (on average 1.6674690095077627) internal successors, (13855), 8310 states have internal predecessors, (13855), 0 states have call successors, (0), 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 23:02:50,537 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 740
[2023-11-06 23:02:50,537 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 23:02:50,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:02:50,540 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 23:02:50,545 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 23:02:50,546 INFO  L85        PathProgramCache]: Analyzing trace with hash -1309929802, now seen corresponding path program 1 times
[2023-11-06 23:02:50,555 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 23:02:50,556 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444330413]
[2023-11-06 23:02:50,557 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 23:02:50,557 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 23:02:51,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 23:02:55,090 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 23:02:55,091 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 23:02:55,091 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444330413]
[2023-11-06 23:02:55,092 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444330413] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 23:02:55,093 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 23:02:55,093 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 23:02:55,095 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36625552]
[2023-11-06 23:02:55,096 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 23:02:55,105 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 23:02:55,106 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 23:02:55,148 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 23:02:55,149 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 23:02:55,172 INFO  L87              Difference]: Start difference. First operand  has 8311 states, 8309 states have (on average 1.6674690095077627) internal successors, (13855), 8310 states have internal predecessors, (13855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 0 states have call successors, (0), 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 23:02:55,844 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 23:02:55,844 INFO  L93              Difference]: Finished difference Result 16429 states and 27393 transitions.
[2023-11-06 23:02:55,845 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 23:02:55,847 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 0 states have call successors, (0), 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 739
[2023-11-06 23:02:55,854 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 23:02:55,923 INFO  L225             Difference]: With dead ends: 16429
[2023-11-06 23:02:55,923 INFO  L226             Difference]: Without dead ends: 8309
[2023-11-06 23:02:55,942 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 23:02:55,947 INFO  L413           NwaCegarLoop]: 13847 mSDtfsCounter, 1 mSDsluCounter, 27688 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 41535 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-06 23:02:55,948 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 41535 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-06 23:02:55,984 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8309 states.
[2023-11-06 23:02:56,177 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8309 to 8309.
[2023-11-06 23:02:56,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8309 states, 8308 states have (on average 1.6671882522869523) internal successors, (13851), 8308 states have internal predecessors, (13851), 0 states have call successors, (0), 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 23:02:56,251 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8309 states to 8309 states and 13851 transitions.
[2023-11-06 23:02:56,252 INFO  L78                 Accepts]: Start accepts. Automaton has 8309 states and 13851 transitions. Word has length 739
[2023-11-06 23:02:56,256 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 23:02:56,257 INFO  L495      AbstractCegarLoop]: Abstraction has 8309 states and 13851 transitions.
[2023-11-06 23:02:56,258 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 184.75) internal successors, (739), 4 states have internal predecessors, (739), 0 states have call successors, (0), 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 23:02:56,258 INFO  L276                IsEmpty]: Start isEmpty. Operand 8309 states and 13851 transitions.
[2023-11-06 23:02:56,280 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 741
[2023-11-06 23:02:56,280 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 23:02:56,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:02:56,281 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-06 23:02:56,282 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 23:02:56,283 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 23:02:56,283 INFO  L85        PathProgramCache]: Analyzing trace with hash -1951388846, now seen corresponding path program 1 times
[2023-11-06 23:02:56,283 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 23:02:56,284 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123312141]
[2023-11-06 23:02:56,284 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 23:02:56,284 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 23:02:56,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 23:02:58,367 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 23:02:58,368 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 23:02:58,369 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123312141]
[2023-11-06 23:02:58,369 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123312141] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 23:02:58,369 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 23:02:58,369 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 23:02:58,370 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931898121]
[2023-11-06 23:02:58,370 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 23:02:58,374 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 23:02:58,374 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 23:02:58,376 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 23:02:58,376 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 23:02:58,377 INFO  L87              Difference]: Start difference. First operand 8309 states and 13851 transitions. Second operand  has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 0 states have call successors, (0), 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 23:02:58,828 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 23:02:58,828 INFO  L93              Difference]: Finished difference Result 16430 states and 27389 transitions.
[2023-11-06 23:02:58,829 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 23:02:58,830 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 0 states have call successors, (0), 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 740
[2023-11-06 23:02:58,831 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 23:02:58,878 INFO  L225             Difference]: With dead ends: 16430
[2023-11-06 23:02:58,878 INFO  L226             Difference]: Without dead ends: 8312
[2023-11-06 23:02:58,893 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 23:02:58,896 INFO  L413           NwaCegarLoop]: 13847 mSDtfsCounter, 1 mSDsluCounter, 27685 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 41532 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-06 23:02:58,896 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 41532 Invalid, 14 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-06 23:02:58,916 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8312 states.
[2023-11-06 23:02:59,083 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8312 to 8311.
[2023-11-06 23:02:59,096 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8311 states, 8310 states have (on average 1.6670276774969917) internal successors, (13853), 8310 states have internal predecessors, (13853), 0 states have call successors, (0), 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 23:02:59,129 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8311 states to 8311 states and 13853 transitions.
[2023-11-06 23:02:59,129 INFO  L78                 Accepts]: Start accepts. Automaton has 8311 states and 13853 transitions. Word has length 740
[2023-11-06 23:02:59,131 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 23:02:59,131 INFO  L495      AbstractCegarLoop]: Abstraction has 8311 states and 13853 transitions.
[2023-11-06 23:02:59,131 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 185.0) internal successors, (740), 4 states have internal predecessors, (740), 0 states have call successors, (0), 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 23:02:59,131 INFO  L276                IsEmpty]: Start isEmpty. Operand 8311 states and 13853 transitions.
[2023-11-06 23:02:59,152 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 742
[2023-11-06 23:02:59,153 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 23:02:59,153 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:02:59,154 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-06 23:02:59,154 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 23:02:59,164 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 23:02:59,165 INFO  L85        PathProgramCache]: Analyzing trace with hash 1201067218, now seen corresponding path program 1 times
[2023-11-06 23:02:59,165 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 23:02:59,166 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682491354]
[2023-11-06 23:02:59,166 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 23:02:59,166 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 23:02:59,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 23:03:01,017 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 23:03:01,017 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 23:03:01,018 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682491354]
[2023-11-06 23:03:01,018 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682491354] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 23:03:01,019 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 23:03:01,019 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 23:03:01,019 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133314828]
[2023-11-06 23:03:01,020 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 23:03:01,021 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 23:03:01,021 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 23:03:01,022 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 23:03:01,023 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 23:03:01,023 INFO  L87              Difference]: Start difference. First operand 8311 states and 13853 transitions. Second operand  has 4 states, 4 states have (on average 185.25) internal successors, (741), 4 states have internal predecessors, (741), 0 states have call successors, (0), 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 23:03:01,669 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 23:03:01,669 INFO  L93              Difference]: Finished difference Result 24545 states and 40916 transitions.
[2023-11-06 23:03:01,670 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-06 23:03:01,670 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 185.25) internal successors, (741), 4 states have internal predecessors, (741), 0 states have call successors, (0), 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 741
[2023-11-06 23:03:01,672 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 23:03:01,746 INFO  L225             Difference]: With dead ends: 24545
[2023-11-06 23:03:01,746 INFO  L226             Difference]: Without dead ends: 16425
[2023-11-06 23:03:01,763 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-06 23:03:01,768 INFO  L413           NwaCegarLoop]: 15357 mSDtfsCounter, 13523 mSDsluCounter, 29193 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13523 SdHoareTripleChecker+Valid, 44550 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-06 23:03:01,770 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13523 Valid, 44550 Invalid, 18 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-06 23:03:01,798 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16425 states.
[2023-11-06 23:03:01,994 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16425 to 8313.
[2023-11-06 23:03:02,007 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8313 states, 8312 states have (on average 1.6668671799807506) internal successors, (13855), 8312 states have internal predecessors, (13855), 0 states have call successors, (0), 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 23:03:02,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8313 states to 8313 states and 13855 transitions.
[2023-11-06 23:03:02,035 INFO  L78                 Accepts]: Start accepts. Automaton has 8313 states and 13855 transitions. Word has length 741
[2023-11-06 23:03:02,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 23:03:02,037 INFO  L495      AbstractCegarLoop]: Abstraction has 8313 states and 13855 transitions.
[2023-11-06 23:03:02,038 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 185.25) internal successors, (741), 4 states have internal predecessors, (741), 0 states have call successors, (0), 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 23:03:02,041 INFO  L276                IsEmpty]: Start isEmpty. Operand 8313 states and 13855 transitions.
[2023-11-06 23:03:02,063 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 743
[2023-11-06 23:03:02,063 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 23:03:02,064 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:03:02,064 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-06 23:03:02,065 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 23:03:02,067 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 23:03:02,068 INFO  L85        PathProgramCache]: Analyzing trace with hash -1532324038, now seen corresponding path program 1 times
[2023-11-06 23:03:02,069 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 23:03:02,075 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860615858]
[2023-11-06 23:03:02,076 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 23:03:02,076 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 23:03:02,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 23:03:03,722 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 23:03:03,722 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 23:03:03,723 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860615858]
[2023-11-06 23:03:03,723 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860615858] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 23:03:03,723 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 23:03:03,723 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 23:03:03,724 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142084219]
[2023-11-06 23:03:03,724 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 23:03:03,725 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 23:03:03,725 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 23:03:03,726 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 23:03:03,727 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 23:03:03,727 INFO  L87              Difference]: Start difference. First operand 8313 states and 13855 transitions. Second operand  has 4 states, 4 states have (on average 185.5) internal successors, (742), 4 states have internal predecessors, (742), 0 states have call successors, (0), 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 23:03:04,430 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 23:03:04,430 INFO  L93              Difference]: Finished difference Result 24548 states and 40917 transitions.
[2023-11-06 23:03:04,431 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-06 23:03:04,431 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 185.5) internal successors, (742), 4 states have internal predecessors, (742), 0 states have call successors, (0), 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 742
[2023-11-06 23:03:04,433 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 23:03:04,465 INFO  L225             Difference]: With dead ends: 24548
[2023-11-06 23:03:04,465 INFO  L226             Difference]: Without dead ends: 16426
[2023-11-06 23:03:04,478 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-06 23:03:04,486 INFO  L413           NwaCegarLoop]: 15352 mSDtfsCounter, 13520 mSDsluCounter, 29188 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13520 SdHoareTripleChecker+Valid, 44540 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-06 23:03:04,488 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13520 Valid, 44540 Invalid, 18 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-06 23:03:04,513 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16426 states.
[2023-11-06 23:03:04,694 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16426 to 8315.
[2023-11-06 23:03:04,707 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8315 states, 8314 states have (on average 1.6667067596824634) internal successors, (13857), 8314 states have internal predecessors, (13857), 0 states have call successors, (0), 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 23:03:04,731 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8315 states to 8315 states and 13857 transitions.
[2023-11-06 23:03:04,731 INFO  L78                 Accepts]: Start accepts. Automaton has 8315 states and 13857 transitions. Word has length 742
[2023-11-06 23:03:04,733 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 23:03:04,733 INFO  L495      AbstractCegarLoop]: Abstraction has 8315 states and 13857 transitions.
[2023-11-06 23:03:04,733 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 185.5) internal successors, (742), 4 states have internal predecessors, (742), 0 states have call successors, (0), 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 23:03:04,733 INFO  L276                IsEmpty]: Start isEmpty. Operand 8315 states and 13857 transitions.
[2023-11-06 23:03:04,759 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 744
[2023-11-06 23:03:04,759 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 23:03:04,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:03:04,760 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-06 23:03:04,760 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 23:03:04,761 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 23:03:04,761 INFO  L85        PathProgramCache]: Analyzing trace with hash -456203668, now seen corresponding path program 1 times
[2023-11-06 23:03:04,761 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 23:03:04,762 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153234379]
[2023-11-06 23:03:04,762 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 23:03:04,762 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 23:03:05,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 23:03:06,864 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 23:03:06,864 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 23:03:06,865 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153234379]
[2023-11-06 23:03:06,865 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153234379] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 23:03:06,865 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 23:03:06,865 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-06 23:03:06,866 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732467044]
[2023-11-06 23:03:06,866 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 23:03:06,867 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-06 23:03:06,867 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 23:03:06,872 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-06 23:03:06,873 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-06 23:03:06,873 INFO  L87              Difference]: Start difference. First operand 8315 states and 13857 transitions. Second operand  has 5 states, 5 states have (on average 148.6) internal successors, (743), 5 states have internal predecessors, (743), 0 states have call successors, (0), 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 23:03:07,736 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 23:03:07,737 INFO  L93              Difference]: Finished difference Result 25465 states and 42440 transitions.
[2023-11-06 23:03:07,738 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-06 23:03:07,738 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 148.6) internal successors, (743), 5 states have internal predecessors, (743), 0 states have call successors, (0), 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 743
[2023-11-06 23:03:07,740 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 23:03:07,777 INFO  L225             Difference]: With dead ends: 25465
[2023-11-06 23:03:07,777 INFO  L226             Difference]: Without dead ends: 17341
[2023-11-06 23:03:07,791 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 23:03:07,792 INFO  L413           NwaCegarLoop]: 15356 mSDtfsCounter, 55197 mSDsluCounter, 27687 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55197 SdHoareTripleChecker+Valid, 43043 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-06 23:03:07,792 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [55197 Valid, 43043 Invalid, 15 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-06 23:03:07,819 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17341 states.
[2023-11-06 23:03:08,039 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17341 to 9221.
[2023-11-06 23:03:08,053 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9221 states, 9220 states have (on average 1.666702819956616) internal successors, (15367), 9220 states have internal predecessors, (15367), 0 states have call successors, (0), 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 23:03:08,086 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9221 states to 9221 states and 15367 transitions.
[2023-11-06 23:03:08,086 INFO  L78                 Accepts]: Start accepts. Automaton has 9221 states and 15367 transitions. Word has length 743
[2023-11-06 23:03:08,088 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 23:03:08,088 INFO  L495      AbstractCegarLoop]: Abstraction has 9221 states and 15367 transitions.
[2023-11-06 23:03:08,089 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 148.6) internal successors, (743), 5 states have internal predecessors, (743), 0 states have call successors, (0), 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 23:03:08,089 INFO  L276                IsEmpty]: Start isEmpty. Operand 9221 states and 15367 transitions.
[2023-11-06 23:03:08,606 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6107
[2023-11-06 23:03:08,606 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 23:03:08,611 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-11-06 23:03:08,612 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-06 23:03:08,612 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 23:03:08,613 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 23:03:08,615 INFO  L85        PathProgramCache]: Analyzing trace with hash 1130951509, now seen corresponding path program 1 times
[2023-11-06 23:03:08,616 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 23:03:08,616 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112228379]
[2023-11-06 23:03:08,617 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 23:03:08,618 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 23:03:10,405 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-06 23:03:10,406 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1986938693]
[2023-11-06 23:03:10,408 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 23:03:10,408 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-06 23:03:10,409 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/z3
[2023-11-06 23:03:10,412 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-06 23:03:10,414 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-06 23:03:20,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 23:03:20,434 INFO  L262         TraceCheckSpWp]: Trace formula consists of 28853 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-06 23:03:20,662 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-06 23:03:21,082 INFO  L134       CoverageAnalysis]: Checked inductivity of 610 backedges. 610 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 23:03:21,082 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-06 23:03:21,083 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 23:03:21,083 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112228379]
[2023-11-06 23:03:21,083 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-06 23:03:21,083 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986938693]
[2023-11-06 23:03:21,084 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1986938693] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 23:03:21,084 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 23:03:21,086 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 23:03:21,086 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866501528]
[2023-11-06 23:03:21,086 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 23:03:21,096 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 23:03:21,096 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 23:03:21,107 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 23:03:21,107 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 23:03:21,110 INFO  L87              Difference]: Start difference. First operand 9221 states and 15367 transitions. Second operand  has 4 states, 4 states have (on average 1526.5) internal successors, (6106), 4 states have internal predecessors, (6106), 0 states have call successors, (0), 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 23:03:21,483 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 23:03:21,487 INFO  L93              Difference]: Finished difference Result 17355 states and 28923 transitions.
[2023-11-06 23:03:21,488 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 23:03:21,491 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1526.5) internal successors, (6106), 4 states have internal predecessors, (6106), 0 states have call successors, (0), 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 6106
[2023-11-06 23:03:21,501 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 23:03:21,525 INFO  L225             Difference]: With dead ends: 17355
[2023-11-06 23:03:21,525 INFO  L226             Difference]: Without dead ends: 9231
[2023-11-06 23:03:21,537 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6105 GetRequests, 6103 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 23:03:21,538 INFO  L413           NwaCegarLoop]: 13847 mSDtfsCounter, 12 mSDsluCounter, 27682 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 41529 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-06 23:03:21,538 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 41529 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-06 23:03:21,560 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9231 states.
[2023-11-06 23:03:21,724 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9231 to 9223.
[2023-11-06 23:03:21,737 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9223 states, 9222 states have (on average 1.666558230318803) internal successors, (15369), 9222 states have internal predecessors, (15369), 0 states have call successors, (0), 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 23:03:21,766 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9223 states to 9223 states and 15369 transitions.
[2023-11-06 23:03:21,766 INFO  L78                 Accepts]: Start accepts. Automaton has 9223 states and 15369 transitions. Word has length 6106
[2023-11-06 23:03:21,772 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 23:03:21,772 INFO  L495      AbstractCegarLoop]: Abstraction has 9223 states and 15369 transitions.
[2023-11-06 23:03:21,774 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1526.5) internal successors, (6106), 4 states have internal predecessors, (6106), 0 states have call successors, (0), 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 23:03:21,775 INFO  L276                IsEmpty]: Start isEmpty. Operand 9223 states and 15369 transitions.
[2023-11-06 23:03:22,240 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6107
[2023-11-06 23:03:22,240 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 23:03:22,245 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-11-06 23:03:22,324 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-11-06 23:03:22,472 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2023-11-06 23:03:22,473 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 23:03:22,473 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 23:03:22,476 INFO  L85        PathProgramCache]: Analyzing trace with hash 151867847, now seen corresponding path program 1 times
[2023-11-06 23:03:22,476 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 23:03:22,476 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733272109]
[2023-11-06 23:03:22,477 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 23:03:22,478 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 23:03:23,829 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-06 23:03:23,830 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [351461902]
[2023-11-06 23:03:23,832 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 23:03:23,832 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-06 23:03:23,832 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/z3
[2023-11-06 23:03:23,833 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-06 23:03:23,856 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f035a5c6-6924-4df8-9280-5c4515cf75e0/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-06 23:03:33,040 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 23:03:33,236 INFO  L262         TraceCheckSpWp]: Trace formula consists of 28854 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-06 23:03:33,404 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-06 23:03:33,773 INFO  L134       CoverageAnalysis]: Checked inductivity of 610 backedges. 610 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 23:03:33,773 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-06 23:03:33,774 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 23:03:33,774 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733272109]
[2023-11-06 23:03:33,774 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-11-06 23:03:33,774 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351461902]
[2023-11-06 23:03:33,774 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [351461902] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 23:03:33,775 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 23:03:33,777 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 23:03:33,777 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132650861]
[2023-11-06 23:03:33,777 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 23:03:33,787 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 23:03:33,787 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 23:03:33,796 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 23:03:33,797 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 23:03:33,799 INFO  L87              Difference]: Start difference. First operand 9223 states and 15369 transitions. Second operand  has 4 states, 4 states have (on average 1526.5) internal successors, (6106), 4 states have internal predecessors, (6106), 0 states have call successors, (0), 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 23:03:34,094 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 23:03:34,094 INFO  L93              Difference]: Finished difference Result 17358 states and 28925 transitions.
[2023-11-06 23:03:34,094 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 23:03:34,096 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1526.5) internal successors, (6106), 4 states have internal predecessors, (6106), 0 states have call successors, (0), 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 6106
[2023-11-06 23:03:34,109 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 23:03:34,129 INFO  L225             Difference]: With dead ends: 17358
[2023-11-06 23:03:34,129 INFO  L226             Difference]: Without dead ends: 9232
[2023-11-06 23:03:34,140 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6105 GetRequests, 6103 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 23:03:34,141 INFO  L413           NwaCegarLoop]: 13847 mSDtfsCounter, 12 mSDsluCounter, 27682 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 41529 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-06 23:03:34,142 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 41529 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-06 23:03:34,159 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9232 states.
[2023-11-06 23:03:34,315 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9232 to 9224.
[2023-11-06 23:03:34,325 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9224 states, 9223 states have (on average 1.6664859590155048) internal successors, (15370), 9223 states have internal predecessors, (15370), 0 states have call successors, (0), 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 23:03:34,349 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9224 states to 9224 states and 15370 transitions.
[2023-11-06 23:03:34,349 INFO  L78                 Accepts]: Start accepts. Automaton has 9224 states and 15370 transitions. Word has length 6106
[2023-11-06 23:03:34,355 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 23:03:34,356 INFO  L495      AbstractCegarLoop]: Abstraction has 9224 states and 15370 transitions.
[2023-11-06 23:03:34,358 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1526.5) internal successors, (6106), 4 states have internal predecessors, (6106), 0 states have call successors, (0), 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 23:03:34,358 INFO  L276                IsEmpty]: Start isEmpty. Operand 9224 states and 15370 transitions.