./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a7e0baeaec9166977e35877266ecd8d02003b6a17c023c6c66f433789b3f2bc2
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:03:32,714 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:03:32,774 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-08 17:03:32,779 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:03:32,779 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:03:32,805 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:03:32,805 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:03:32,806 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:03:32,806 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:03:32,807 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 17:03:32,807 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:03:32,807 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:03:32,808 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:03:32,809 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 17:03:32,809 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 17:03:32,809 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:03:32,810 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:03:32,810 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 17:03:32,811 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 17:03:32,811 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:03:32,812 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:03:32,812 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:03:32,812 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 17:03:32,813 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 17:03:32,813 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 17:03:32,814 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:03:32,814 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 17:03:32,815 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:03:32,815 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 17:03:32,815 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:03:32,816 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:03:32,816 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:03:32,822 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:03:32,822 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 17:03:32,822 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:03:32,823 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:03:32,823 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:03:32,823 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:03:32,823 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:03:32,824 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_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/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_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7e0baeaec9166977e35877266ecd8d02003b6a17c023c6c66f433789b3f2bc2
[2024-11-08 17:03:33,100 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:03:33,128 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:03:33,133 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:03:33,135 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 17:03:33,135 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 17:03:33,137 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c
Unable to find full path for "g++"
[2024-11-08 17:03:35,228 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:03:35,621 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 17:03:35,622 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c
[2024-11-08 17:03:35,651 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/data/1e1ff8eb7/0eb9ce5ae06946c6bd6489f3ca38840a/FLAGfc7981d76
[2024-11-08 17:03:35,670 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/data/1e1ff8eb7/0eb9ce5ae06946c6bd6489f3ca38840a
[2024-11-08 17:03:35,673 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:03:35,675 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:03:35,678 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:03:35,679 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:03:35,685 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:03:35,685 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:03:35" (1/1) ...
[2024-11-08 17:03:35,687 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e5b92bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:35, skipping insertion in model container
[2024-11-08 17:03:35,688 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:03:35" (1/1) ...
[2024-11-08 17:03:35,791 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:03:36,066 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c[1183,1196]
[2024-11-08 17:03:36,895 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:03:36,904 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 17:03:36,913 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.production_cell.5.prop1-back-serstep.c[1183,1196]
[2024-11-08 17:03:37,273 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:03:37,289 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 17:03:37,289 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37 WrapperNode
[2024-11-08 17:03:37,289 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:03:37,290 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:03:37,290 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:03:37,291 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:03:37,298 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:37,416 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:39,786 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15531
[2024-11-08 17:03:39,786 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:03:39,787 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:03:39,788 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:03:39,789 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:03:39,800 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:39,801 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:40,419 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:40,820 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-08 17:03:40,820 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:40,820 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:41,423 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:41,500 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:41,586 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:41,646 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:42,151 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:03:42,153 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:03:42,153 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:03:42,153 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:03:42,154 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (1/1) ...
[2024-11-08 17:03:42,160 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:03:42,174 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:03:42,189 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:03:42,195 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e83f19f-8d93-4efd-9da0-94acab92cd96/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:03:42,231 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:03:42,231 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:03:42,231 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:03:42,231 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:03:43,118 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 17:03:43,120 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:04:27,635 INFO  L?                        ?]: Removed 8522 outVars from TransFormulas that were not future-live.
[2024-11-08 17:04:27,635 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 17:04:27,731 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:04:27,731 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 17:04:27,731 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:04:27 BoogieIcfgContainer
[2024-11-08 17:04:27,731 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:04:27,735 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:04:27,736 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:04:27,739 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:04:27,740 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:03:35" (1/3) ...
[2024-11-08 17:04:27,742 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b93aa1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:04:27, skipping insertion in model container
[2024-11-08 17:04:27,742 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:03:37" (2/3) ...
[2024-11-08 17:04:27,743 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b93aa1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:04:27, skipping insertion in model container
[2024-11-08 17:04:27,743 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:04:27" (3/3) ...
[2024-11-08 17:04:27,744 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.production_cell.5.prop1-back-serstep.c
[2024-11-08 17:04:27,764 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:04:27,765 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 17:04:27,935 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:04:27,943 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31506c20, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:04:27,944 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 17:04:27,963 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5471 states, 5469 states have (on average 1.4999085756079722) internal successors, (8203), 5470 states have internal predecessors, (8203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:28,019 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 546
[2024-11-08 17:04:28,019 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:04:28,021 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:04:28,022 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:04:28,029 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:04:28,031 INFO  L85        PathProgramCache]: Analyzing trace with hash 2080761028, now seen corresponding path program 1 times
[2024-11-08 17:04:28,040 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:04:28,041 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681968007]
[2024-11-08 17:04:28,041 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:04:28,042 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:04:28,984 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:04:31,811 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:04:31,811 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:04:31,812 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681968007]
[2024-11-08 17:04:31,812 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681968007] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:04:31,812 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:04:31,813 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:04:31,815 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288628217]
[2024-11-08 17:04:31,816 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:04:31,823 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:04:31,824 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:04:31,851 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:04:31,852 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:04:31,866 INFO  L87              Difference]: Start difference. First operand  has 5471 states, 5469 states have (on average 1.4999085756079722) internal successors, (8203), 5470 states have internal predecessors, (8203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:39,902 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:04:39,903 INFO  L93              Difference]: Finished difference Result 15597 states and 23393 transitions.
[2024-11-08 17:04:39,904 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 17:04:39,906 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 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 545
[2024-11-08 17:04:39,908 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:04:39,967 INFO  L225             Difference]: With dead ends: 15597
[2024-11-08 17:04:39,967 INFO  L226             Difference]: Without dead ends: 10412
[2024-11-08 17:04:39,984 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:04:39,990 INFO  L432           NwaCegarLoop]: 6066 mSDtfsCounter, 7530 mSDsluCounter, 18061 mSDsCounter, 0 mSdLazyCounter, 8234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7530 SdHoareTripleChecker+Valid, 24127 SdHoareTripleChecker+Invalid, 8235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:04:39,991 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7530 Valid, 24127 Invalid, 8235 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 8234 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time]
[2024-11-08 17:04:40,028 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10412 states.
[2024-11-08 17:04:40,231 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10412 to 5806.
[2024-11-08 17:04:40,243 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5806 states, 5805 states have (on average 1.4993970714900948) internal successors, (8704), 5805 states have internal predecessors, (8704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:40,262 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5806 states to 5806 states and 8704 transitions.
[2024-11-08 17:04:40,264 INFO  L78                 Accepts]: Start accepts. Automaton has 5806 states and 8704 transitions. Word has length 545
[2024-11-08 17:04:40,269 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:04:40,271 INFO  L471      AbstractCegarLoop]: Abstraction has 5806 states and 8704 transitions.
[2024-11-08 17:04:40,271 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 109.0) internal successors, (545), 5 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:40,272 INFO  L276                IsEmpty]: Start isEmpty. Operand 5806 states and 8704 transitions.
[2024-11-08 17:04:40,285 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 548
[2024-11-08 17:04:40,285 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:04:40,286 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:04:40,286 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 17:04:40,286 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:04:40,287 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:04:40,287 INFO  L85        PathProgramCache]: Analyzing trace with hash 1541126017, now seen corresponding path program 1 times
[2024-11-08 17:04:40,288 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:04:40,289 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178518541]
[2024-11-08 17:04:40,289 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:04:40,289 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:04:40,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:04:42,662 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:04:42,662 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:04:42,663 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178518541]
[2024-11-08 17:04:42,663 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178518541] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:04:42,663 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:04:42,664 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:04:42,664 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670166616]
[2024-11-08 17:04:42,664 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:04:42,666 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:04:42,667 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:04:42,668 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:04:42,669 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:04:42,670 INFO  L87              Difference]: Start difference. First operand 5806 states and 8704 transitions. Second operand  has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:42,839 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:04:42,840 INFO  L93              Difference]: Finished difference Result 5810 states and 8708 transitions.
[2024-11-08 17:04:42,840 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 17:04:42,841 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 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 547
[2024-11-08 17:04:42,843 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:04:42,861 INFO  L225             Difference]: With dead ends: 5810
[2024-11-08 17:04:42,862 INFO  L226             Difference]: Without dead ends: 5808
[2024-11-08 17:04:42,866 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:04:42,868 INFO  L432           NwaCegarLoop]: 8195 mSDtfsCounter, 0 mSDsluCounter, 16384 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24579 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:04:42,868 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24579 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:04:42,881 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5808 states.
[2024-11-08 17:04:42,992 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5808 to 5808.
[2024-11-08 17:04:43,004 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5808 states, 5807 states have (on average 1.4992250731875323) internal successors, (8706), 5807 states have internal predecessors, (8706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:43,024 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5808 states to 5808 states and 8706 transitions.
[2024-11-08 17:04:43,025 INFO  L78                 Accepts]: Start accepts. Automaton has 5808 states and 8706 transitions. Word has length 547
[2024-11-08 17:04:43,027 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:04:43,028 INFO  L471      AbstractCegarLoop]: Abstraction has 5808 states and 8706 transitions.
[2024-11-08 17:04:43,029 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 136.75) internal successors, (547), 4 states have internal predecessors, (547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:43,029 INFO  L276                IsEmpty]: Start isEmpty. Operand 5808 states and 8706 transitions.
[2024-11-08 17:04:43,047 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 549
[2024-11-08 17:04:43,047 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:04:43,048 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:04:43,048 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 17:04:43,049 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:04:43,053 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:04:43,054 INFO  L85        PathProgramCache]: Analyzing trace with hash 531964938, now seen corresponding path program 1 times
[2024-11-08 17:04:43,054 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:04:43,054 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393492811]
[2024-11-08 17:04:43,054 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:04:43,055 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:04:43,429 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:04:44,738 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:04:44,738 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:04:44,739 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393492811]
[2024-11-08 17:04:44,739 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393492811] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:04:44,739 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:04:44,739 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:04:44,740 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584331379]
[2024-11-08 17:04:44,740 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:04:44,741 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:04:44,741 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:04:44,742 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:04:44,743 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:04:44,743 INFO  L87              Difference]: Start difference. First operand 5808 states and 8706 transitions. Second operand  has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:44,944 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:04:44,944 INFO  L93              Difference]: Finished difference Result 10993 states and 16480 transitions.
[2024-11-08 17:04:44,945 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 17:04:44,945 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 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 548
[2024-11-08 17:04:44,947 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:04:44,964 INFO  L225             Difference]: With dead ends: 10993
[2024-11-08 17:04:44,965 INFO  L226             Difference]: Without dead ends: 5810
[2024-11-08 17:04:44,971 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:04:44,972 INFO  L432           NwaCegarLoop]: 8195 mSDtfsCounter, 0 mSDsluCounter, 16380 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24575 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:04:44,973 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24575 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:04:44,984 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5810 states.
[2024-11-08 17:04:45,091 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5810 to 5810.
[2024-11-08 17:04:45,102 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5810 states, 5809 states have (on average 1.4990531933207092) internal successors, (8708), 5809 states have internal predecessors, (8708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:45,121 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5810 states to 5810 states and 8708 transitions.
[2024-11-08 17:04:45,121 INFO  L78                 Accepts]: Start accepts. Automaton has 5810 states and 8708 transitions. Word has length 548
[2024-11-08 17:04:45,122 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:04:45,123 INFO  L471      AbstractCegarLoop]: Abstraction has 5810 states and 8708 transitions.
[2024-11-08 17:04:45,124 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 137.0) internal successors, (548), 4 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:45,124 INFO  L276                IsEmpty]: Start isEmpty. Operand 5810 states and 8708 transitions.
[2024-11-08 17:04:45,141 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 550
[2024-11-08 17:04:45,141 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:04:45,142 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:04:45,142 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 17:04:45,142 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:04:45,143 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:04:45,143 INFO  L85        PathProgramCache]: Analyzing trace with hash -1786918534, now seen corresponding path program 1 times
[2024-11-08 17:04:45,143 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:04:45,144 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271861224]
[2024-11-08 17:04:45,144 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:04:45,144 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:04:45,504 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:04:46,909 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:04:46,909 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:04:46,909 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271861224]
[2024-11-08 17:04:46,910 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271861224] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:04:46,910 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:04:46,910 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:04:46,910 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198190328]
[2024-11-08 17:04:46,911 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:04:46,911 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:04:46,912 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:04:46,913 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:04:46,913 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:04:46,914 INFO  L87              Difference]: Start difference. First operand 5810 states and 8708 transitions. Second operand  has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:47,206 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:04:47,207 INFO  L93              Difference]: Finished difference Result 15827 states and 23726 transitions.
[2024-11-08 17:04:47,207 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 17:04:47,208 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 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 549
[2024-11-08 17:04:47,209 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:04:47,253 INFO  L225             Difference]: With dead ends: 15827
[2024-11-08 17:04:47,253 INFO  L226             Difference]: Without dead ends: 10642
[2024-11-08 17:04:47,263 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:04:47,264 INFO  L432           NwaCegarLoop]: 8193 mSDtfsCounter, 7638 mSDsluCounter, 24146 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7638 SdHoareTripleChecker+Valid, 32339 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:04:47,265 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7638 Valid, 32339 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:04:47,285 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10642 states.
[2024-11-08 17:04:47,586 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10642 to 6261.
[2024-11-08 17:04:47,596 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6261 states, 6260 states have (on average 1.4988817891373802) internal successors, (9383), 6260 states have internal predecessors, (9383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:47,610 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6261 states to 6261 states and 9383 transitions.
[2024-11-08 17:04:47,610 INFO  L78                 Accepts]: Start accepts. Automaton has 6261 states and 9383 transitions. Word has length 549
[2024-11-08 17:04:47,611 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:04:47,612 INFO  L471      AbstractCegarLoop]: Abstraction has 6261 states and 9383 transitions.
[2024-11-08 17:04:47,612 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 109.8) internal successors, (549), 5 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:04:47,612 INFO  L276                IsEmpty]: Start isEmpty. Operand 6261 states and 9383 transitions.
[2024-11-08 17:04:47,777 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3141
[2024-11-08 17:04:47,777 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:04:47,780 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:04:47,780 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 17:04:47,781 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:04:47,781 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:04:47,783 INFO  L85        PathProgramCache]: Analyzing trace with hash 116566623, now seen corresponding path program 1 times
[2024-11-08 17:04:47,784 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:04:47,784 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622220758]
[2024-11-08 17:04:47,785 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:04:47,785 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:04:53,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:02,381 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked.
[2024-11-08 17:05:02,381 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:05:02,381 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622220758]
[2024-11-08 17:05:02,381 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622220758] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:05:02,382 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:05:02,382 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:05:02,382 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359594688]
[2024-11-08 17:05:02,383 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:05:02,386 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:05:02,386 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:05:02,389 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:05:02,389 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:05:02,391 INFO  L87              Difference]: Start difference. First operand 6261 states and 9383 transitions. Second operand  has 5 states, 5 states have (on average 549.6) internal successors, (2748), 5 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:05:02,540 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:05:02,540 INFO  L93              Difference]: Finished difference Result 11450 states and 17161 transitions.
[2024-11-08 17:05:02,541 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 17:05:02,542 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 549.6) internal successors, (2748), 5 states have internal predecessors, (2748), 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 3140
[2024-11-08 17:05:02,548 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:05:02,563 INFO  L225             Difference]: With dead ends: 11450
[2024-11-08 17:05:02,563 INFO  L226             Difference]: Without dead ends: 6265
[2024-11-08 17:05:02,569 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:05:02,571 INFO  L432           NwaCegarLoop]: 8195 mSDtfsCounter, 0 mSDsluCounter, 16380 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24575 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:05:02,573 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24575 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:05:02,585 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6265 states.
[2024-11-08 17:05:02,682 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 6261.
[2024-11-08 17:05:02,693 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6261 states, 6260 states have (on average 1.4988817891373802) internal successors, (9383), 6260 states have internal predecessors, (9383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:05:02,703 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6261 states to 6261 states and 9383 transitions.
[2024-11-08 17:05:02,703 INFO  L78                 Accepts]: Start accepts. Automaton has 6261 states and 9383 transitions. Word has length 3140
[2024-11-08 17:05:02,708 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:05:02,708 INFO  L471      AbstractCegarLoop]: Abstraction has 6261 states and 9383 transitions.
[2024-11-08 17:05:02,711 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 549.6) internal successors, (2748), 5 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:05:02,711 INFO  L276                IsEmpty]: Start isEmpty. Operand 6261 states and 9383 transitions.
[2024-11-08 17:05:02,787 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3142
[2024-11-08 17:05:02,787 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:05:02,789 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:05:02,790 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 17:05:02,790 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:05:02,790 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:05:02,792 INFO  L85        PathProgramCache]: Analyzing trace with hash 227488332, now seen corresponding path program 1 times
[2024-11-08 17:05:02,792 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:05:02,793 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957152958]
[2024-11-08 17:05:02,794 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:05:02,794 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:05:07,862 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:15,424 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked.
[2024-11-08 17:05:15,425 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:05:15,425 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957152958]
[2024-11-08 17:05:15,426 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957152958] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:05:15,426 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:05:15,427 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 17:05:15,427 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247333876]
[2024-11-08 17:05:15,427 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:05:15,430 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 17:05:15,430 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:05:15,433 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 17:05:15,433 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:05:15,435 INFO  L87              Difference]: Start difference. First operand 6261 states and 9383 transitions. Second operand  has 5 states, 5 states have (on average 550.2) internal successors, (2751), 5 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:05:15,577 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:05:15,578 INFO  L93              Difference]: Finished difference Result 11454 states and 17167 transitions.
[2024-11-08 17:05:15,578 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 17:05:15,580 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 550.2) internal successors, (2751), 5 states have internal predecessors, (2751), 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 3141
[2024-11-08 17:05:15,586 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:05:15,597 INFO  L225             Difference]: With dead ends: 11454
[2024-11-08 17:05:15,597 INFO  L226             Difference]: Without dead ends: 6265
[2024-11-08 17:05:15,604 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:05:15,609 INFO  L432           NwaCegarLoop]: 8195 mSDtfsCounter, 0 mSDsluCounter, 16380 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24575 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:05:15,609 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24575 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:05:15,618 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6265 states.
[2024-11-08 17:05:15,699 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 6263.
[2024-11-08 17:05:15,710 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6263 states, 6262 states have (on average 1.4987224528904504) internal successors, (9385), 6262 states have internal predecessors, (9385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:05:15,719 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6263 states to 6263 states and 9385 transitions.
[2024-11-08 17:05:15,720 INFO  L78                 Accepts]: Start accepts. Automaton has 6263 states and 9385 transitions. Word has length 3141
[2024-11-08 17:05:15,726 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:05:15,728 INFO  L471      AbstractCegarLoop]: Abstraction has 6263 states and 9385 transitions.
[2024-11-08 17:05:15,730 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 550.2) internal successors, (2751), 5 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:05:15,734 INFO  L276                IsEmpty]: Start isEmpty. Operand 6263 states and 9385 transitions.
[2024-11-08 17:05:15,889 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3143
[2024-11-08 17:05:15,889 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:05:15,891 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:05:15,891 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 17:05:15,891 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:05:15,892 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:05:15,893 INFO  L85        PathProgramCache]: Analyzing trace with hash -423599592, now seen corresponding path program 1 times
[2024-11-08 17:05:15,894 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:05:15,894 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465972956]
[2024-11-08 17:05:15,895 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:05:15,895 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:05:19,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:27,631 INFO  L134       CoverageAnalysis]: Checked inductivity of 400 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked.
[2024-11-08 17:05:27,631 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:05:27,631 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465972956]
[2024-11-08 17:05:27,632 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465972956] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:05:27,632 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:05:27,632 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:05:27,633 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146593517]
[2024-11-08 17:05:27,633 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:05:27,636 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:05:27,636 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:05:27,639 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:05:27,639 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:05:27,641 INFO  L87              Difference]: Start difference. First operand 6263 states and 9385 transitions. Second operand  has 4 states, 4 states have (on average 688.5) internal successors, (2754), 4 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:05:28,006 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:05:28,007 INFO  L93              Difference]: Finished difference Result 11462 states and 17177 transitions.
[2024-11-08 17:05:28,007 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 17:05:28,009 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 688.5) internal successors, (2754), 4 states have internal predecessors, (2754), 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 3142
[2024-11-08 17:05:28,017 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:05:28,027 INFO  L225             Difference]: With dead ends: 11462
[2024-11-08 17:05:28,028 INFO  L226             Difference]: Without dead ends: 6267
[2024-11-08 17:05:28,034 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:05:28,037 INFO  L432           NwaCegarLoop]: 8195 mSDtfsCounter, 0 mSDsluCounter, 16380 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24575 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:05:28,038 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24575 Invalid, 15 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:05:28,047 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6267 states.
[2024-11-08 17:05:28,121 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6267 to 6265.
[2024-11-08 17:05:28,131 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6265 states, 6264 states have (on average 1.4985632183908046) internal successors, (9387), 6264 states have internal predecessors, (9387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:05:28,141 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6265 states to 6265 states and 9387 transitions.
[2024-11-08 17:05:28,141 INFO  L78                 Accepts]: Start accepts. Automaton has 6265 states and 9387 transitions. Word has length 3142
[2024-11-08 17:05:28,146 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:05:28,146 INFO  L471      AbstractCegarLoop]: Abstraction has 6265 states and 9387 transitions.
[2024-11-08 17:05:28,147 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 688.5) internal successors, (2754), 4 states have internal predecessors, (2754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:05:28,147 INFO  L276                IsEmpty]: Start isEmpty. Operand 6265 states and 9387 transitions.
[2024-11-08 17:05:28,212 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3144
[2024-11-08 17:05:28,212 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 17:05:28,214 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-11-08 17:05:28,214 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 17:05:28,214 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:05:28,214 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:05:28,216 INFO  L85        PathProgramCache]: Analyzing trace with hash 1116835603, now seen corresponding path program 1 times
[2024-11-08 17:05:28,216 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:05:28,216 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302582808]
[2024-11-08 17:05:28,217 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:05:28,217 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:05:36,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat