./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.1.prop2-back-serstep.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_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.1.prop2-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1 --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 4b9f99728e97054c98ad3f9aa72022e84c5708bd12c200ffe13082e223088d14
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 08:02:48,255 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-12-02 08:02:48,309 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-02 08:02:48,314 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 08:02:48,314 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 08:02:48,334 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 08:02:48,335 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 08:02:48,335 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 08:02:48,336 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 08:02:48,336 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-12-02 08:02:48,336 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 08:02:48,336 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 08:02:48,336 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 08:02:48,336 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-12-02 08:02:48,337 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-12-02 08:02:48,337 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 08:02:48,337 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-12-02 08:02:48,337 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-12-02 08:02:48,337 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-12-02 08:02:48,337 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 08:02:48,337 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 08:02:48,337 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 08:02:48,337 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-12-02 08:02:48,337 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 08:02:48,338 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-12-02 08:02:48,338 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 08:02:48,338 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 08:02:48,338 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:02:48,338 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 08:02:48,338 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:02:48,338 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 08:02:48,338 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 08:02:48,338 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 08:02:48,338 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 08:02:48,339 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:02:48,339 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 08:02:48,339 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 08:02:48,339 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-12-02 08:02:48,339 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 08:02:48,339 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-12-02 08:02:48,339 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 08:02:48,339 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 08:02:48,339 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 08:02:48,339 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 08:02:48,340 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 08:02:48,340 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_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1
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 -> 4b9f99728e97054c98ad3f9aa72022e84c5708bd12c200ffe13082e223088d14
[2024-12-02 08:02:48,561 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 08:02:48,569 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 08:02:48,571 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 08:02:48,572 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-12-02 08:02:48,572 INFO  L274        PluginConnector]: CDTParser initialized
[2024-12-02 08:02:48,573 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.1.prop2-back-serstep.c
[2024-12-02 08:02:51,232 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/data/b56c9505b/d4888eadaea54be1b91969f8f3a927e5/FLAG2b722539c
[2024-12-02 08:02:51,720 INFO  L384              CDTParser]: Found 1 translation units.
[2024-12-02 08:02:51,720 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.1.prop2-back-serstep.c
[2024-12-02 08:02:51,766 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/data/b56c9505b/d4888eadaea54be1b91969f8f3a927e5/FLAG2b722539c
[2024-12-02 08:02:51,780 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/data/b56c9505b/d4888eadaea54be1b91969f8f3a927e5
[2024-12-02 08:02:51,783 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 08:02:51,784 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 08:02:51,786 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 08:02:51,786 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 08:02:51,790 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 08:02:51,791 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:02:51" (1/1) ...
[2024-12-02 08:02:51,792 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@582599f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:51, skipping insertion in model container
[2024-12-02 08:02:51,792 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:02:51" (1/1) ...
[2024-12-02 08:02:51,944 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-12-02 08:02:52,204 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_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.1.prop2-back-serstep.c[1180,1193]
[2024-12-02 08:02:53,350 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:02:53,357 INFO  L200         MainTranslator]: Completed pre-run
[2024-12-02 08:02:53,365 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_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.pgm_protocol.1.prop2-back-serstep.c[1180,1193]
[2024-12-02 08:02:54,311 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 08:02:54,327 INFO  L204         MainTranslator]: Completed translation
[2024-12-02 08:02:54,328 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54 WrapperNode
[2024-12-02 08:02:54,329 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 08:02:54,330 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 08:02:54,330 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 08:02:54,331 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 08:02:54,337 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:02:54,609 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:02:57,683 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48448
[2024-12-02 08:02:57,684 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 08:02:57,685 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 08:02:57,685 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 08:02:57,685 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 08:02:57,693 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:02:57,693 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:02:58,702 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:02:59,197 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].
[2024-12-02 08:02:59,197 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:02:59,197 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:02:59,933 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:03:00,002 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:03:00,117 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:03:00,305 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:03:00,410 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:03:01,233 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 08:03:01,235 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 08:03:01,235 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 08:03:01,235 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-12-02 08:03:01,236 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (1/1) ...
[2024-12-02 08:03:01,242 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 08:03:01,255 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 08:03:01,269 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 08:03:01,272 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1a3d1c2e-8ebc-4654-9f1e-d1297d37b121/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 08:03:01,292 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 08:03:01,293 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 08:03:01,293 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 08:03:01,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 08:03:03,076 INFO  L234             CfgBuilder]: Building ICFG
[2024-12-02 08:03:03,078 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 08:08:58,945 INFO  L?                        ?]: Removed 27362 outVars from TransFormulas that were not future-live.
[2024-12-02 08:08:58,945 INFO  L283             CfgBuilder]: Performing block encoding
[2024-12-02 08:08:59,080 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 08:08:59,080 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 08:08:59,080 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:08:59 BoogieIcfgContainer
[2024-12-02 08:08:59,080 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 08:08:59,083 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 08:08:59,083 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 08:08:59,087 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-12-02 08:08:59,088 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:02:51" (1/3) ...
[2024-12-02 08:08:59,088 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470d12d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:08:59, skipping insertion in model container
[2024-12-02 08:08:59,088 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:02:54" (2/3) ...
[2024-12-02 08:08:59,088 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470d12d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:08:59, skipping insertion in model container
[2024-12-02 08:08:59,089 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:08:59" (3/3) ...
[2024-12-02 08:08:59,090 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.pgm_protocol.1.prop2-back-serstep.c
[2024-12-02 08:08:59,104 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 08:08:59,106 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.pgm_protocol.1.prop2-back-serstep.c that has 1 procedures, 16130 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 08:08:59,372 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 08:08:59,385 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;@48340e8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 08:08:59,385 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 08:08:59,426 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 16130 states, 16128 states have (on average 1.5001860119047619) internal successors, (24195), 16129 states have internal predecessors, (24195), 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)
[2024-12-02 08:08:59,506 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1262
[2024-12-02 08:08:59,506 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:08:59,508 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:08:59,508 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:08:59,513 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:08:59,514 INFO  L85        PathProgramCache]: Analyzing trace with hash -832121148, now seen corresponding path program 1 times
[2024-12-02 08:08:59,521 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:08:59,521 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905671573]
[2024-12-02 08:08:59,522 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:08:59,522 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:09:01,570 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:09:05,704 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:09:05,704 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:09:05,705 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905671573]
[2024-12-02 08:09:05,705 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905671573] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:09:05,705 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:09:05,706 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:09:05,707 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801325760]
[2024-12-02 08:09:05,708 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:09:05,713 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:09:05,714 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:09:05,733 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:09:05,734 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:09:05,770 INFO  L87              Difference]: Start difference. First operand  has 16130 states, 16128 states have (on average 1.5001860119047619) internal successors, (24195), 16129 states have internal predecessors, (24195), 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 252.2) internal successors, (1261), 5 states have internal predecessors, (1261), 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)
[2024-12-02 08:09:22,712 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:09:22,712 INFO  L93              Difference]: Finished difference Result 46752 states and 70135 transitions.
[2024-12-02 08:09:22,713 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 08:09:22,714 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 252.2) internal successors, (1261), 5 states have internal predecessors, (1261), 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 1261
[2024-12-02 08:09:22,716 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:09:22,798 INFO  L225             Difference]: With dead ends: 46752
[2024-12-02 08:09:22,798 INFO  L226             Difference]: Without dead ends: 31324
[2024-12-02 08:09:22,817 INFO  L434           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
[2024-12-02 08:09:22,821 INFO  L435           NwaCegarLoop]: 17850 mSDtfsCounter, 23032 mSDsluCounter, 52754 mSDsCounter, 0 mSdLazyCounter, 25109 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23032 SdHoareTripleChecker+Valid, 70604 SdHoareTripleChecker+Invalid, 25110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:09:22,822 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [23032 Valid, 70604 Invalid, 25110 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 25109 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time]
[2024-12-02 08:09:22,883 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31324 states.
[2024-12-02 08:09:23,307 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31324 to 17058.
[2024-12-02 08:09:23,334 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17058 states, 17057 states have (on average 1.5000293134783373) internal successors, (25586), 17057 states have internal predecessors, (25586), 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)
[2024-12-02 08:09:23,381 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17058 states to 17058 states and 25586 transitions.
[2024-12-02 08:09:23,382 INFO  L78                 Accepts]: Start accepts. Automaton has 17058 states and 25586 transitions. Word has length 1261
[2024-12-02 08:09:23,385 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:09:23,385 INFO  L471      AbstractCegarLoop]: Abstraction has 17058 states and 25586 transitions.
[2024-12-02 08:09:23,386 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 252.2) internal successors, (1261), 5 states have internal predecessors, (1261), 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)
[2024-12-02 08:09:23,386 INFO  L276                IsEmpty]: Start isEmpty. Operand 17058 states and 25586 transitions.
[2024-12-02 08:09:23,444 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1264
[2024-12-02 08:09:23,444 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:09:23,445 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:09:23,445 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 08:09:23,445 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:09:23,446 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:09:23,447 INFO  L85        PathProgramCache]: Analyzing trace with hash -1274483967, now seen corresponding path program 1 times
[2024-12-02 08:09:23,447 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:09:23,447 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677025880]
[2024-12-02 08:09:23,447 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:09:23,448 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:09:24,157 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:09:26,268 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:09:26,269 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:09:26,269 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677025880]
[2024-12-02 08:09:26,269 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677025880] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:09:26,269 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:09:26,269 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:09:26,269 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139977977]
[2024-12-02 08:09:26,269 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:09:26,272 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:09:26,272 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:09:26,272 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:09:26,273 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:09:26,273 INFO  L87              Difference]: Start difference. First operand 17058 states and 25586 transitions. Second operand  has 4 states, 4 states have (on average 315.75) internal successors, (1263), 4 states have internal predecessors, (1263), 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)
[2024-12-02 08:09:26,623 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:09:26,623 INFO  L93              Difference]: Finished difference Result 17062 states and 25590 transitions.
[2024-12-02 08:09:26,624 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:09:26,624 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 315.75) internal successors, (1263), 4 states have internal predecessors, (1263), 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 1263
[2024-12-02 08:09:26,627 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:09:26,672 INFO  L225             Difference]: With dead ends: 17062
[2024-12-02 08:09:26,672 INFO  L226             Difference]: Without dead ends: 17060
[2024-12-02 08:09:26,677 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
[2024-12-02 08:09:26,678 INFO  L435           NwaCegarLoop]: 24189 mSDtfsCounter, 0 mSDsluCounter, 48372 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72561 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
[2024-12-02 08:09:26,680 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72561 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 08:09:26,707 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17060 states.
[2024-12-02 08:09:26,915 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17060 to 17060.
[2024-12-02 08:09:26,938 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17060 states, 17059 states have (on average 1.4999706899583798) internal successors, (25588), 17059 states have internal predecessors, (25588), 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)
[2024-12-02 08:09:26,978 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17060 states to 17060 states and 25588 transitions.
[2024-12-02 08:09:26,978 INFO  L78                 Accepts]: Start accepts. Automaton has 17060 states and 25588 transitions. Word has length 1263
[2024-12-02 08:09:26,981 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:09:26,981 INFO  L471      AbstractCegarLoop]: Abstraction has 17060 states and 25588 transitions.
[2024-12-02 08:09:26,981 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 315.75) internal successors, (1263), 4 states have internal predecessors, (1263), 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)
[2024-12-02 08:09:26,982 INFO  L276                IsEmpty]: Start isEmpty. Operand 17060 states and 25588 transitions.
[2024-12-02 08:09:26,997 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1265
[2024-12-02 08:09:26,998 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:09:26,998 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:09:26,999 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 08:09:26,999 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:09:27,000 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:09:27,001 INFO  L85        PathProgramCache]: Analyzing trace with hash -852593996, now seen corresponding path program 1 times
[2024-12-02 08:09:27,001 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:09:27,001 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000685893]
[2024-12-02 08:09:27,002 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:09:27,002 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:09:27,592 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:09:29,140 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:09:29,141 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:09:29,141 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000685893]
[2024-12-02 08:09:29,141 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000685893] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:09:29,141 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:09:29,141 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 08:09:29,142 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306221042]
[2024-12-02 08:09:29,142 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:09:29,143 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 08:09:29,143 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:09:29,144 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 08:09:29,144 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 08:09:29,144 INFO  L87              Difference]: Start difference. First operand 17060 states and 25588 transitions. Second operand  has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 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)
[2024-12-02 08:09:29,395 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:09:29,395 INFO  L93              Difference]: Finished difference Result 32489 states and 48732 transitions.
[2024-12-02 08:09:29,395 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:09:29,396 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 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 1264
[2024-12-02 08:09:29,397 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:09:29,430 INFO  L225             Difference]: With dead ends: 32489
[2024-12-02 08:09:29,430 INFO  L226             Difference]: Without dead ends: 17062
[2024-12-02 08:09:29,445 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
[2024-12-02 08:09:29,446 INFO  L435           NwaCegarLoop]: 24189 mSDtfsCounter, 0 mSDsluCounter, 48368 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72557 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:09:29,447 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72557 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 08:09:29,468 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17062 states.
[2024-12-02 08:09:29,643 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17062 to 17062.
[2024-12-02 08:09:29,663 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17062 states, 17061 states have (on average 1.4999120801828731) internal successors, (25590), 17061 states have internal predecessors, (25590), 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)
[2024-12-02 08:09:29,684 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17062 states to 17062 states and 25590 transitions.
[2024-12-02 08:09:29,684 INFO  L78                 Accepts]: Start accepts. Automaton has 17062 states and 25590 transitions. Word has length 1264
[2024-12-02 08:09:29,686 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:09:29,686 INFO  L471      AbstractCegarLoop]: Abstraction has 17062 states and 25590 transitions.
[2024-12-02 08:09:29,687 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 316.0) internal successors, (1264), 4 states have internal predecessors, (1264), 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)
[2024-12-02 08:09:29,687 INFO  L276                IsEmpty]: Start isEmpty. Operand 17062 states and 25590 transitions.
[2024-12-02 08:09:29,702 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1266
[2024-12-02 08:09:29,702 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:09:29,703 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 08:09:29,703 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 08:09:29,703 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:09:29,704 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:09:29,704 INFO  L85        PathProgramCache]: Analyzing trace with hash -1758567878, now seen corresponding path program 1 times
[2024-12-02 08:09:29,705 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:09:29,705 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406436992]
[2024-12-02 08:09:29,705 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:09:29,705 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:09:30,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:09:32,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 08:09:32,107 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:09:32,107 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406436992]
[2024-12-02 08:09:32,107 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406436992] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:09:32,107 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:09:32,107 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:09:32,108 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664550731]
[2024-12-02 08:09:32,108 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:09:32,109 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:09:32,109 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:09:32,111 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:09:32,111 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:09:32,111 INFO  L87              Difference]: Start difference. First operand 17062 states and 25590 transitions. Second operand  has 5 states, 5 states have (on average 253.0) internal successors, (1265), 5 states have internal predecessors, (1265), 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)
[2024-12-02 08:09:32,629 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:09:32,629 INFO  L93              Difference]: Finished difference Result 46967 states and 70448 transitions.
[2024-12-02 08:09:32,629 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 08:09:32,630 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 253.0) internal successors, (1265), 5 states have internal predecessors, (1265), 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 1265
[2024-12-02 08:09:32,631 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:09:32,676 INFO  L225             Difference]: With dead ends: 46967
[2024-12-02 08:09:32,676 INFO  L226             Difference]: Without dead ends: 31538
[2024-12-02 08:09:32,687 INFO  L434           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
[2024-12-02 08:09:32,688 INFO  L435           NwaCegarLoop]: 24187 mSDtfsCounter, 22904 mSDsluCounter, 71504 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22904 SdHoareTripleChecker+Valid, 95691 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 08:09:32,688 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [22904 Valid, 95691 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 08:09:32,712 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31538 states.
[2024-12-02 08:09:32,888 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31538 to 17937.
[2024-12-02 08:09:32,906 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17937 states, 17936 states have (on average 1.4998327386262267) internal successors, (26901), 17936 states have internal predecessors, (26901), 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)
[2024-12-02 08:09:32,925 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17937 states to 17937 states and 26901 transitions.
[2024-12-02 08:09:32,925 INFO  L78                 Accepts]: Start accepts. Automaton has 17937 states and 26901 transitions. Word has length 1265
[2024-12-02 08:09:32,926 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:09:32,926 INFO  L471      AbstractCegarLoop]: Abstraction has 17937 states and 26901 transitions.
[2024-12-02 08:09:32,926 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 253.0) internal successors, (1265), 5 states have internal predecessors, (1265), 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)
[2024-12-02 08:09:32,926 INFO  L276                IsEmpty]: Start isEmpty. Operand 17937 states and 26901 transitions.
[2024-12-02 08:09:33,285 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8967
[2024-12-02 08:09:33,286 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:09:33,290 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-12-02 08:09:33,290 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 08:09:33,290 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:09:33,292 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:09:33,297 INFO  L85        PathProgramCache]: Analyzing trace with hash 660018337, now seen corresponding path program 1 times
[2024-12-02 08:09:33,297 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:09:33,297 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843300060]
[2024-12-02 08:09:33,300 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:09:33,300 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:09:50,508 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 08:10:26,097 INFO  L134       CoverageAnalysis]: Checked inductivity of 908 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked.
[2024-12-02 08:10:26,097 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 08:10:26,097 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843300060]
[2024-12-02 08:10:26,097 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843300060] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 08:10:26,097 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 08:10:26,098 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 08:10:26,098 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174823468]
[2024-12-02 08:10:26,098 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 08:10:26,103 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 08:10:26,103 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 08:10:26,106 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 08:10:26,106 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 08:10:26,108 INFO  L87              Difference]: Start difference. First operand 17937 states and 26901 transitions. Second operand  has 5 states, 5 states have (on average 1613.2) internal successors, (8066), 5 states have internal predecessors, (8066), 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)
[2024-12-02 08:10:26,537 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 08:10:26,538 INFO  L93              Difference]: Finished difference Result 33370 states and 50049 transitions.
[2024-12-02 08:10:26,538 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 08:10:26,539 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 1613.2) internal successors, (8066), 5 states have internal predecessors, (8066), 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 8966
[2024-12-02 08:10:26,548 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 08:10:26,583 INFO  L225             Difference]: With dead ends: 33370
[2024-12-02 08:10:26,583 INFO  L226             Difference]: Without dead ends: 17941
[2024-12-02 08:10:26,597 INFO  L434           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
[2024-12-02 08:10:26,598 INFO  L435           NwaCegarLoop]: 24189 mSDtfsCounter, 0 mSDsluCounter, 48368 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72557 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 08:10:26,599 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72557 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 08:10:26,621 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 17941 states.
[2024-12-02 08:10:26,832 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 17941 to 17937.
[2024-12-02 08:10:26,848 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17937 states, 17936 states have (on average 1.4998327386262267) internal successors, (26901), 17936 states have internal predecessors, (26901), 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)
[2024-12-02 08:10:26,874 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17937 states to 17937 states and 26901 transitions.
[2024-12-02 08:10:26,874 INFO  L78                 Accepts]: Start accepts. Automaton has 17937 states and 26901 transitions. Word has length 8966
[2024-12-02 08:10:26,882 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 08:10:26,882 INFO  L471      AbstractCegarLoop]: Abstraction has 17937 states and 26901 transitions.
[2024-12-02 08:10:26,884 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 1613.2) internal successors, (8066), 5 states have internal predecessors, (8066), 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)
[2024-12-02 08:10:26,884 INFO  L276                IsEmpty]: Start isEmpty. Operand 17937 states and 26901 transitions.
[2024-12-02 08:10:27,457 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8968
[2024-12-02 08:10:27,457 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 08:10:27,459 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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[2024-12-02 08:10:27,459 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 08:10:27,460 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 08:10:27,461 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 08:10:27,464 INFO  L85        PathProgramCache]: Analyzing trace with hash -105373068, now seen corresponding path program 1 times
[2024-12-02 08:10:27,464 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 08:10:27,464 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538521898]
[2024-12-02 08:10:27,465 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 08:10:27,466 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 08:10:42,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat