./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.7.prop6-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.7.prop6-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB --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 35f2daea322073f1a2c409a45ca47610618b3ed296a09ac5d1724dd8057e1ff6
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-11-28 02:34:01,213 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-28 02:34:01,299 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-28 02:34:01,311 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-28 02:34:01,312 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-28 02:34:01,355 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-28 02:34:01,356 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-28 02:34:01,357 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-28 02:34:01,358 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-28 02:34:01,359 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-28 02:34:01,360 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-28 02:34:01,360 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-28 02:34:01,360 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-28 02:34:01,361 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-28 02:34:01,361 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-28 02:34:01,362 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-28 02:34:01,362 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-28 02:34:01,362 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-28 02:34:01,362 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-28 02:34:01,362 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-28 02:34:01,362 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-28 02:34:01,363 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-28 02:34:01,363 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-28 02:34:01,363 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-28 02:34:01,363 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-28 02:34:01,363 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-28 02:34:01,363 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 02:34:01,363 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 02:34:01,363 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 02:34:01,363 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 02:34:01,364 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-28 02:34:01,364 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 02:34:01,364 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 02:34:01,364 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 02:34:01,364 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 02:34:01,365 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-28 02:34:01,365 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-28 02:34:01,365 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-28 02:34:01,365 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-28 02:34:01,365 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-28 02:34:01,365 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-28 02:34:01,365 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-28 02:34:01,365 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-28 02:34:01,365 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-28 02:34:01,365 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-28 02:34:01,365 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB
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 -> 35f2daea322073f1a2c409a45ca47610618b3ed296a09ac5d1724dd8057e1ff6
[2024-11-28 02:34:01,712 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-28 02:34:01,729 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-28 02:34:01,732 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-28 02:34:01,734 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-28 02:34:01,735 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-28 02:34:01,738 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.7.prop6-func-interl.c
[2024-11-28 02:34:04,670 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/data/9d582e07d/843bb410a5494770b00a47e025620cbf/FLAG16888427f
[2024-11-28 02:34:05,442 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-28 02:34:05,443 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.7.prop6-func-interl.c
[2024-11-28 02:34:05,500 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/data/9d582e07d/843bb410a5494770b00a47e025620cbf/FLAG16888427f
[2024-11-28 02:34:05,523 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/data/9d582e07d/843bb410a5494770b00a47e025620cbf
[2024-11-28 02:34:05,526 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-28 02:34:05,529 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-28 02:34:05,531 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-28 02:34:05,531 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-28 02:34:05,536 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-28 02:34:05,537 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:34:05" (1/1) ...
[2024-11-28 02:34:05,539 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37dd6eec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:05, skipping insertion in model container
[2024-11-28 02:34:05,540 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:34:05" (1/1) ...
[2024-11-28 02:34:05,751 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-28 02:34:06,145 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_44fba922-8be1-413b-a2ea-0fa66609b227/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.7.prop6-func-interl.c[1179,1192]
[2024-11-28 02:34:07,825 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 02:34:07,840 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-28 02:34:07,852 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_44fba922-8be1-413b-a2ea-0fa66609b227/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.7.prop6-func-interl.c[1179,1192]
[2024-11-28 02:34:08,898 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 02:34:08,913 INFO  L204         MainTranslator]: Completed translation
[2024-11-28 02:34:08,913 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08 WrapperNode
[2024-11-28 02:34:08,914 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-28 02:34:08,915 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-28 02:34:08,915 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-28 02:34:08,915 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-28 02:34:08,925 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:09,267 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:12,818 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 42350
[2024-11-28 02:34:12,819 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-28 02:34:12,820 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-28 02:34:12,820 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-28 02:34:12,820 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-28 02:34:12,829 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:12,829 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:13,660 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:14,768 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].
[2024-11-28 02:34:14,768 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:14,768 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:15,763 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:15,847 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:15,991 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:16,209 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:16,353 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:17,224 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-28 02:34:17,225 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-28 02:34:17,225 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-28 02:34:17,225 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-28 02:34:17,226 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (1/1) ...
[2024-11-28 02:34:17,233 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 02:34:17,250 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 02:34:17,268 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-28 02:34:17,276 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44fba922-8be1-413b-a2ea-0fa66609b227/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-28 02:34:17,890 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-28 02:34:17,890 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-28 02:34:17,890 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-28 02:34:17,890 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-28 02:34:20,242 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-28 02:34:20,244 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-28 02:36:42,686 INFO  L?                        ?]: Removed 24139 outVars from TransFormulas that were not future-live.
[2024-11-28 02:36:42,686 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-28 02:36:42,882 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-28 02:36:42,882 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-28 02:36:42,884 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:36:42 BoogieIcfgContainer
[2024-11-28 02:36:42,884 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-28 02:36:42,886 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-28 02:36:42,887 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-28 02:36:42,893 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-28 02:36:42,894 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:34:05" (1/3) ...
[2024-11-28 02:36:42,895 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728aa873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:36:42, skipping insertion in model container
[2024-11-28 02:36:42,895 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:34:08" (2/3) ...
[2024-11-28 02:36:42,896 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@728aa873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:36:42, skipping insertion in model container
[2024-11-28 02:36:42,896 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:36:42" (3/3) ...
[2024-11-28 02:36:42,898 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pgm_protocol.7.prop6-func-interl.c
[2024-11-28 02:36:42,919 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-28 02:36:42,921 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.pgm_protocol.7.prop6-func-interl.c that has 1 procedures, 14406 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-28 02:36:43,209 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-28 02:36:43,225 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;@2fedcb15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-28 02:36:43,225 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-28 02:36:43,268 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 14406 states, 14404 states have (on average 1.5006248264371007) internal successors, (21615), 14405 states have internal predecessors, (21615), 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)
[2024-11-28 02:36:43,320 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 486
[2024-11-28 02:36:43,320 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 02:36:43,321 INFO  L218           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]
[2024-11-28 02:36:43,322 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 02:36:43,328 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:36:43,329 INFO  L85        PathProgramCache]: Analyzing trace with hash 1088361948, now seen corresponding path program 1 times
[2024-11-28 02:36:43,337 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:36:43,337 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791199395]
[2024-11-28 02:36:43,338 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:36:43,339 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:36:44,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:36:46,601 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:36:46,603 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:36:46,605 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791199395]
[2024-11-28 02:36:46,606 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791199395] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 02:36:46,607 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 02:36:46,607 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 02:36:46,609 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470534600]
[2024-11-28 02:36:46,610 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 02:36:46,616 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 02:36:46,619 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:36:46,647 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 02:36:46,647 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 02:36:46,687 INFO  L87              Difference]: Start difference. First operand  has 14406 states, 14404 states have (on average 1.5006248264371007) internal successors, (21615), 14405 states have internal predecessors, (21615), 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 121.25) internal successors, (485), 4 states have internal predecessors, (485), 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)
[2024-11-28 02:36:47,632 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 02:36:47,633 INFO  L93              Difference]: Finished difference Result 28109 states and 42179 transitions.
[2024-11-28 02:36:47,635 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 02:36:47,637 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 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 485
[2024-11-28 02:36:47,643 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 02:36:47,736 INFO  L225             Difference]: With dead ends: 28109
[2024-11-28 02:36:47,737 INFO  L226             Difference]: Without dead ends: 14405
[2024-11-28 02:36:47,766 INFO  L434           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
[2024-11-28 02:36:47,769 INFO  L435           NwaCegarLoop]: 21609 mSDtfsCounter, 0 mSDsluCounter, 43212 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64821 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 02:36:47,770 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64821 Invalid, 11 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 02:36:47,814 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14405 states.
[2024-11-28 02:36:48,171 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14405 to 14405.
[2024-11-28 02:36:48,211 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14405 states, 14404 states have (on average 1.5004859761177451) internal successors, (21613), 14404 states have internal predecessors, (21613), 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)
[2024-11-28 02:36:48,293 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14405 states to 14405 states and 21613 transitions.
[2024-11-28 02:36:48,297 INFO  L78                 Accepts]: Start accepts. Automaton has 14405 states and 21613 transitions. Word has length 485
[2024-11-28 02:36:48,299 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 02:36:48,302 INFO  L471      AbstractCegarLoop]: Abstraction has 14405 states and 21613 transitions.
[2024-11-28 02:36:48,302 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 121.25) internal successors, (485), 4 states have internal predecessors, (485), 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)
[2024-11-28 02:36:48,303 INFO  L276                IsEmpty]: Start isEmpty. Operand 14405 states and 21613 transitions.
[2024-11-28 02:36:48,314 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 487
[2024-11-28 02:36:48,314 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 02:36:48,315 INFO  L218           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]
[2024-11-28 02:36:48,315 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-28 02:36:48,315 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 02:36:48,317 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:36:48,317 INFO  L85        PathProgramCache]: Analyzing trace with hash -618819707, now seen corresponding path program 1 times
[2024-11-28 02:36:48,317 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:36:48,317 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777786461]
[2024-11-28 02:36:48,319 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:36:48,319 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:36:48,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:36:49,932 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:36:49,935 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:36:49,936 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777786461]
[2024-11-28 02:36:49,936 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777786461] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 02:36:49,936 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 02:36:49,936 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 02:36:49,936 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409435647]
[2024-11-28 02:36:49,936 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 02:36:49,938 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 02:36:49,938 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:36:49,944 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 02:36:49,944 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 02:36:49,944 INFO  L87              Difference]: Start difference. First operand 14405 states and 21613 transitions. Second operand  has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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)
[2024-11-28 02:36:50,585 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 02:36:50,585 INFO  L93              Difference]: Finished difference Result 28110 states and 42177 transitions.
[2024-11-28 02:36:50,586 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 02:36:50,586 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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 486
[2024-11-28 02:36:50,588 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 02:36:50,653 INFO  L225             Difference]: With dead ends: 28110
[2024-11-28 02:36:50,653 INFO  L226             Difference]: Without dead ends: 14407
[2024-11-28 02:36:50,668 INFO  L434           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
[2024-11-28 02:36:50,669 INFO  L435           NwaCegarLoop]: 21609 mSDtfsCounter, 0 mSDsluCounter, 43208 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64817 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
[2024-11-28 02:36:50,669 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64817 Invalid, 15 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 02:36:50,695 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14407 states.
[2024-11-28 02:36:50,977 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14407 to 14407.
[2024-11-28 02:36:51,008 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14407 states, 14406 states have (on average 1.5004164931278634) internal successors, (21615), 14406 states have internal predecessors, (21615), 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)
[2024-11-28 02:36:51,074 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14407 states to 14407 states and 21615 transitions.
[2024-11-28 02:36:51,074 INFO  L78                 Accepts]: Start accepts. Automaton has 14407 states and 21615 transitions. Word has length 486
[2024-11-28 02:36:51,076 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 02:36:51,076 INFO  L471      AbstractCegarLoop]: Abstraction has 14407 states and 21615 transitions.
[2024-11-28 02:36:51,077 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 121.5) internal successors, (486), 4 states have internal predecessors, (486), 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)
[2024-11-28 02:36:51,077 INFO  L276                IsEmpty]: Start isEmpty. Operand 14407 states and 21615 transitions.
[2024-11-28 02:36:51,088 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 488
[2024-11-28 02:36:51,088 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 02:36:51,089 INFO  L218           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]
[2024-11-28 02:36:51,089 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-28 02:36:51,089 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 02:36:51,090 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:36:51,090 INFO  L85        PathProgramCache]: Analyzing trace with hash 1193462741, now seen corresponding path program 1 times
[2024-11-28 02:36:51,090 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:36:51,091 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224053465]
[2024-11-28 02:36:51,091 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:36:51,091 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:36:51,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:36:52,500 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:36:52,500 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:36:52,500 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224053465]
[2024-11-28 02:36:52,500 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224053465] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 02:36:52,500 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 02:36:52,501 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 02:36:52,501 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751560482]
[2024-11-28 02:36:52,501 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 02:36:52,502 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 02:36:52,502 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:36:52,503 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 02:36:52,503 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 02:36:52,503 INFO  L87              Difference]: Start difference. First operand 14407 states and 21615 transitions. Second operand  has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 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)
[2024-11-28 02:36:53,036 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 02:36:53,037 INFO  L93              Difference]: Finished difference Result 28114 states and 42181 transitions.
[2024-11-28 02:36:53,037 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 02:36:53,038 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 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 487
[2024-11-28 02:36:53,041 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 02:36:53,078 INFO  L225             Difference]: With dead ends: 28114
[2024-11-28 02:36:53,078 INFO  L226             Difference]: Without dead ends: 14409
[2024-11-28 02:36:53,093 INFO  L434           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
[2024-11-28 02:36:53,096 INFO  L435           NwaCegarLoop]: 21609 mSDtfsCounter, 0 mSDsluCounter, 43202 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64811 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 02:36:53,099 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64811 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 02:36:53,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14409 states.
[2024-11-28 02:36:53,350 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14409 to 14409.
[2024-11-28 02:36:53,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14409 states, 14408 states have (on average 1.5003470294280956) internal successors, (21617), 14408 states have internal predecessors, (21617), 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)
[2024-11-28 02:36:53,421 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14409 states to 14409 states and 21617 transitions.
[2024-11-28 02:36:53,421 INFO  L78                 Accepts]: Start accepts. Automaton has 14409 states and 21617 transitions. Word has length 487
[2024-11-28 02:36:53,423 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 02:36:53,423 INFO  L471      AbstractCegarLoop]: Abstraction has 14409 states and 21617 transitions.
[2024-11-28 02:36:53,424 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 121.75) internal successors, (487), 4 states have internal predecessors, (487), 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)
[2024-11-28 02:36:53,424 INFO  L276                IsEmpty]: Start isEmpty. Operand 14409 states and 21617 transitions.
[2024-11-28 02:36:53,432 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 489
[2024-11-28 02:36:53,433 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 02:36:53,433 INFO  L218           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]
[2024-11-28 02:36:53,433 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-28 02:36:53,433 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 02:36:53,434 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:36:53,436 INFO  L85        PathProgramCache]: Analyzing trace with hash -748470772, now seen corresponding path program 1 times
[2024-11-28 02:36:53,437 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:36:53,437 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691333279]
[2024-11-28 02:36:53,437 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:36:53,437 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:36:54,144 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:36:56,146 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:36:56,147 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:36:56,147 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691333279]
[2024-11-28 02:36:56,147 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691333279] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 02:36:56,147 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 02:36:56,147 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-28 02:36:56,147 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247618169]
[2024-11-28 02:36:56,147 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 02:36:56,148 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-28 02:36:56,148 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:36:56,154 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-28 02:36:56,154 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-28 02:36:56,155 INFO  L87              Difference]: Start difference. First operand 14409 states and 21617 transitions. Second operand  has 6 states, 6 states have (on average 81.33333333333333) internal successors, (488), 6 states have internal predecessors, (488), 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)
[2024-11-28 02:36:57,366 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 02:36:57,366 INFO  L93              Difference]: Finished difference Result 28124 states and 42193 transitions.
[2024-11-28 02:36:57,367 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-28 02:36:57,367 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 81.33333333333333) internal successors, (488), 6 states have internal predecessors, (488), 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 488
[2024-11-28 02:36:57,369 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 02:36:57,412 INFO  L225             Difference]: With dead ends: 28124
[2024-11-28 02:36:57,412 INFO  L226             Difference]: Without dead ends: 14417
[2024-11-28 02:36:57,442 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-28 02:36:57,447 INFO  L435           NwaCegarLoop]: 21608 mSDtfsCounter, 3 mSDsluCounter, 64812 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 86420 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-28 02:36:57,447 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 86420 Invalid, 25 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-28 02:36:57,479 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14417 states.
[2024-11-28 02:36:57,796 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14417 to 14413.
[2024-11-28 02:36:57,824 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14413 states, 14412 states have (on average 1.5003469331112962) internal successors, (21623), 14412 states have internal predecessors, (21623), 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)
[2024-11-28 02:36:57,892 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14413 states to 14413 states and 21623 transitions.
[2024-11-28 02:36:57,892 INFO  L78                 Accepts]: Start accepts. Automaton has 14413 states and 21623 transitions. Word has length 488
[2024-11-28 02:36:57,894 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 02:36:57,894 INFO  L471      AbstractCegarLoop]: Abstraction has 14413 states and 21623 transitions.
[2024-11-28 02:36:57,894 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 81.33333333333333) internal successors, (488), 6 states have internal predecessors, (488), 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)
[2024-11-28 02:36:57,894 INFO  L276                IsEmpty]: Start isEmpty. Operand 14413 states and 21623 transitions.
[2024-11-28 02:36:57,905 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 490
[2024-11-28 02:36:57,909 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 02:36:57,910 INFO  L218           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]
[2024-11-28 02:36:57,910 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-28 02:36:57,911 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 02:36:57,912 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:36:57,913 INFO  L85        PathProgramCache]: Analyzing trace with hash -613561138, now seen corresponding path program 1 times
[2024-11-28 02:36:57,916 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:36:57,917 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516476966]
[2024-11-28 02:36:57,917 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:36:57,917 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:36:58,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 02:36:59,954 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 02:36:59,957 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 02:36:59,958 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516476966]
[2024-11-28 02:36:59,958 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516476966] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 02:36:59,958 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 02:36:59,958 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-28 02:36:59,958 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030192351]
[2024-11-28 02:36:59,958 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 02:36:59,959 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-28 02:36:59,959 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 02:36:59,960 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-28 02:36:59,960 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-28 02:36:59,961 INFO  L87              Difference]: Start difference. First operand 14413 states and 21623 transitions. Second operand  has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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)
[2024-11-28 02:37:00,873 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 02:37:00,873 INFO  L93              Difference]: Finished difference Result 40865 states and 61312 transitions.
[2024-11-28 02:37:00,874 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-28 02:37:00,874 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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 489
[2024-11-28 02:37:00,876 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 02:37:00,930 INFO  L225             Difference]: With dead ends: 40865
[2024-11-28 02:37:00,930 INFO  L226             Difference]: Without dead ends: 27154
[2024-11-28 02:37:00,950 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42
[2024-11-28 02:37:00,951 INFO  L435           NwaCegarLoop]: 21604 mSDtfsCounter, 19694 mSDsluCounter, 85353 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19694 SdHoareTripleChecker+Valid, 106957 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-28 02:37:00,952 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [19694 Valid, 106957 Invalid, 48 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-28 02:37:00,987 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 27154 states.
[2024-11-28 02:37:01,293 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 27154 to 14659.
[2024-11-28 02:37:01,310 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14659 states, 14658 states have (on average 1.5002728885250376) internal successors, (21991), 14658 states have internal predecessors, (21991), 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)
[2024-11-28 02:37:01,351 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14659 states to 14659 states and 21991 transitions.
[2024-11-28 02:37:01,351 INFO  L78                 Accepts]: Start accepts. Automaton has 14659 states and 21991 transitions. Word has length 489
[2024-11-28 02:37:01,353 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 02:37:01,353 INFO  L471      AbstractCegarLoop]: Abstraction has 14659 states and 21991 transitions.
[2024-11-28 02:37:01,354 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 81.5) internal successors, (489), 6 states have internal predecessors, (489), 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)
[2024-11-28 02:37:01,354 INFO  L276                IsEmpty]: Start isEmpty. Operand 14659 states and 21991 transitions.
[2024-11-28 02:37:02,449 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7325
[2024-11-28 02:37:02,449 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 02:37:02,454 INFO  L218           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-28 02:37:02,455 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-28 02:37:02,455 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 02:37:02,458 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 02:37:02,462 INFO  L85        PathProgramCache]: Analyzing trace with hash 1483524061, now seen corresponding path program 1 times
[2024-11-28 02:37:02,462 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 02:37:02,462 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406853881]
[2024-11-28 02:37:02,464 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 02:37:02,464 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 02:37:20,047 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat