./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-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_5eea118d-0525-48fe-807b-b0248f295393/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/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_5eea118d-0525-48fe-807b-b0248f295393/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/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_5eea118d-0525-48fe-807b-b0248f295393/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 cd0681b440abfcb019b4847aa7480adf2cb07ebcbfbab0f8c913a2f410c53f5c
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-11-28 05:09:16,442 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-28 05:09:16,543 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-28 05:09:16,548 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-28 05:09:16,549 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-28 05:09:16,572 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-28 05:09:16,572 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-28 05:09:16,572 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-28 05:09:16,573 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-28 05:09:16,573 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-28 05:09:16,573 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-28 05:09:16,573 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-28 05:09:16,573 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-28 05:09:16,573 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-28 05:09:16,574 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-28 05:09:16,574 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-28 05:09:16,574 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-28 05:09:16,574 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-28 05:09:16,574 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-28 05:09:16,574 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-28 05:09:16,574 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-28 05:09:16,574 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-28 05:09:16,575 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-28 05:09:16,575 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-28 05:09:16,575 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-28 05:09:16,575 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-28 05:09:16,575 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 05:09:16,575 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 05:09:16,575 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 05:09:16,575 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 05:09:16,575 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-28 05:09:16,576 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 05:09:16,576 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 05:09:16,576 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 05:09:16,576 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 05:09:16,576 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-28 05:09:16,576 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-28 05:09:16,576 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-28 05:09:16,576 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-28 05:09:16,576 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-28 05:09:16,577 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-28 05:09:16,577 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-28 05:09:16,577 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-28 05:09:16,577 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-28 05:09:16,577 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-28 05:09:16,577 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_5eea118d-0525-48fe-807b-b0248f295393/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 -> cd0681b440abfcb019b4847aa7480adf2cb07ebcbfbab0f8c913a2f410c53f5c
[2024-11-28 05:09:16,879 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-28 05:09:16,894 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-28 05:09:16,897 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-28 05:09:16,899 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-28 05:09:16,899 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-28 05:09:16,902 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-func-interl.c
[2024-11-28 05:09:19,856 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/bin/uautomizer-verify-aQ6SnzHsRB/data/2b54f9ab8/7945468b815e485380097e862c468e31/FLAG17a18e2e5
[2024-11-28 05:09:20,314 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-28 05:09:20,316 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-func-interl.c
[2024-11-28 05:09:20,355 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/bin/uautomizer-verify-aQ6SnzHsRB/data/2b54f9ab8/7945468b815e485380097e862c468e31/FLAG17a18e2e5
[2024-11-28 05:09:20,422 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/bin/uautomizer-verify-aQ6SnzHsRB/data/2b54f9ab8/7945468b815e485380097e862c468e31
[2024-11-28 05:09:20,424 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-28 05:09:20,425 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-28 05:09:20,427 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-28 05:09:20,427 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-28 05:09:20,432 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-28 05:09:20,432 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:09:20" (1/1) ...
[2024-11-28 05:09:20,435 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479f5ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:20, skipping insertion in model container
[2024-11-28 05:09:20,436 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:09:20" (1/1) ...
[2024-11-28 05:09:20,562 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-28 05:09:20,814 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_5eea118d-0525-48fe-807b-b0248f295393/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-func-interl.c[1174,1187]
[2024-11-28 05:09:21,673 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 05:09:21,685 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-28 05:09:21,696 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_5eea118d-0525-48fe-807b-b0248f295393/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.3.prop2-func-interl.c[1174,1187]
[2024-11-28 05:09:22,357 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 05:09:22,375 INFO  L204         MainTranslator]: Completed translation
[2024-11-28 05:09:22,376 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22 WrapperNode
[2024-11-28 05:09:22,376 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-28 05:09:22,378 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-28 05:09:22,378 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-28 05:09:22,378 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-28 05:09:22,389 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:22,575 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:24,809 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21126
[2024-11-28 05:09:24,810 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-28 05:09:24,811 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-28 05:09:24,811 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-28 05:09:24,811 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-28 05:09:24,820 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:24,820 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:25,416 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:25,894 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 05:09:25,894 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:25,895 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:26,389 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:26,434 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:26,544 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:26,615 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:26,665 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:27,138 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-28 05:09:27,139 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-28 05:09:27,139 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-28 05:09:27,139 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-28 05:09:27,140 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (1/1) ...
[2024-11-28 05:09:27,147 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 05:09:27,160 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 05:09:27,177 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-28 05:09:27,181 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5eea118d-0525-48fe-807b-b0248f295393/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-28 05:09:27,207 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-28 05:09:27,207 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-28 05:09:27,207 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-28 05:09:27,209 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-28 05:09:28,386 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-28 05:09:28,388 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-28 05:10:21,679 INFO  L?                        ?]: Removed 11377 outVars from TransFormulas that were not future-live.
[2024-11-28 05:10:21,679 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-28 05:10:21,795 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-28 05:10:21,795 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-28 05:10:21,795 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:21 BoogieIcfgContainer
[2024-11-28 05:10:21,796 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-28 05:10:21,798 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-28 05:10:21,798 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-28 05:10:21,803 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-28 05:10:21,803 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:09:20" (1/3) ...
[2024-11-28 05:10:21,804 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dac47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:21, skipping insertion in model container
[2024-11-28 05:10:21,804 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:09:22" (2/3) ...
[2024-11-28 05:10:21,804 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12dac47a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:10:21, skipping insertion in model container
[2024-11-28 05:10:21,804 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:10:21" (3/3) ...
[2024-11-28 05:10:21,805 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.needham.3.prop2-func-interl.c
[2024-11-28 05:10:21,821 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-28 05:10:21,823 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.needham.3.prop2-func-interl.c that has 1 procedures, 7701 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-28 05:10:22,034 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-28 05:10:22,050 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;@3bc9d5b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-28 05:10:22,051 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-28 05:10:22,080 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7701 states, 7699 states have (on average 1.5038316664501883) internal successors, (11578), 7700 states have internal predecessors, (11578), 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 05:10:22,116 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 314
[2024-11-28 05:10:22,116 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:10:22,117 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]
[2024-11-28 05:10:22,117 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:10:22,123 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:10:22,124 INFO  L85        PathProgramCache]: Analyzing trace with hash -76029620, now seen corresponding path program 1 times
[2024-11-28 05:10:22,132 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:10:22,133 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425835005]
[2024-11-28 05:10:22,133 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:10:22,134 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:10:22,715 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:10:24,336 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 05:10:24,338 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:10:24,340 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425835005]
[2024-11-28 05:10:24,341 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425835005] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:10:24,342 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:10:24,342 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 05:10:24,344 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142095928]
[2024-11-28 05:10:24,345 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:10:24,351 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 05:10:24,353 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:10:24,376 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 05:10:24,377 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 05:10:24,397 INFO  L87              Difference]: Start difference. First operand  has 7701 states, 7699 states have (on average 1.5038316664501883) internal successors, (11578), 7700 states have internal predecessors, (11578), 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 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 05:10:24,942 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:10:24,942 INFO  L93              Difference]: Finished difference Result 15163 states and 22801 transitions.
[2024-11-28 05:10:24,944 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 05:10:24,946 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 313
[2024-11-28 05:10:24,947 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:10:25,007 INFO  L225             Difference]: With dead ends: 15163
[2024-11-28 05:10:25,008 INFO  L226             Difference]: Without dead ends: 7700
[2024-11-28 05:10:25,029 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 05:10:25,035 INFO  L435           NwaCegarLoop]: 11572 mSDtfsCounter, 0 mSDsluCounter, 23138 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34710 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-28 05:10:25,039 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34710 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-28 05:10:25,076 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7700 states.
[2024-11-28 05:10:25,322 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7700 to 7700.
[2024-11-28 05:10:25,339 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7700 states, 7699 states have (on average 1.5035718924535655) internal successors, (11576), 7699 states have internal predecessors, (11576), 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 05:10:25,378 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7700 states to 7700 states and 11576 transitions.
[2024-11-28 05:10:25,381 INFO  L78                 Accepts]: Start accepts. Automaton has 7700 states and 11576 transitions. Word has length 313
[2024-11-28 05:10:25,383 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:10:25,385 INFO  L471      AbstractCegarLoop]: Abstraction has 7700 states and 11576 transitions.
[2024-11-28 05:10:25,385 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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 05:10:25,385 INFO  L276                IsEmpty]: Start isEmpty. Operand 7700 states and 11576 transitions.
[2024-11-28 05:10:25,394 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 315
[2024-11-28 05:10:25,396 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:10:25,397 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]
[2024-11-28 05:10:25,397 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-28 05:10:25,397 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:10:25,398 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:10:25,398 INFO  L85        PathProgramCache]: Analyzing trace with hash 1939746231, now seen corresponding path program 1 times
[2024-11-28 05:10:25,398 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:10:25,398 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867364803]
[2024-11-28 05:10:25,398 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:10:25,399 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:10:25,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:10:26,438 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 05:10:26,439 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:10:26,441 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867364803]
[2024-11-28 05:10:26,442 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867364803] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:10:26,442 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:10:26,442 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 05:10:26,442 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550425316]
[2024-11-28 05:10:26,442 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:10:26,444 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 05:10:26,444 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:10:26,445 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 05:10:26,445 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 05:10:26,445 INFO  L87              Difference]: Start difference. First operand 7700 states and 11576 transitions. Second operand  has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 05:10:26,777 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:10:26,777 INFO  L93              Difference]: Finished difference Result 15164 states and 22799 transitions.
[2024-11-28 05:10:26,778 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 05:10:26,778 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 314
[2024-11-28 05:10:26,779 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:10:26,807 INFO  L225             Difference]: With dead ends: 15164
[2024-11-28 05:10:26,807 INFO  L226             Difference]: Without dead ends: 7702
[2024-11-28 05:10:26,816 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 05:10:26,817 INFO  L435           NwaCegarLoop]: 11572 mSDtfsCounter, 0 mSDsluCounter, 23134 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34706 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
[2024-11-28 05:10:26,818 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34706 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 05:10:26,833 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7702 states.
[2024-11-28 05:10:26,967 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7702 to 7702.
[2024-11-28 05:10:26,988 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7702 states, 7701 states have (on average 1.5034411115439554) internal successors, (11578), 7701 states have internal predecessors, (11578), 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 05:10:27,022 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7702 states to 7702 states and 11578 transitions.
[2024-11-28 05:10:27,022 INFO  L78                 Accepts]: Start accepts. Automaton has 7702 states and 11578 transitions. Word has length 314
[2024-11-28 05:10:27,024 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:10:27,024 INFO  L471      AbstractCegarLoop]: Abstraction has 7702 states and 11578 transitions.
[2024-11-28 05:10:27,029 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 05:10:27,029 INFO  L276                IsEmpty]: Start isEmpty. Operand 7702 states and 11578 transitions.
[2024-11-28 05:10:27,037 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 316
[2024-11-28 05:10:27,037 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:10:27,037 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]
[2024-11-28 05:10:27,037 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-28 05:10:27,037 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:10:27,038 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:10:27,038 INFO  L85        PathProgramCache]: Analyzing trace with hash -1095372923, now seen corresponding path program 1 times
[2024-11-28 05:10:27,038 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:10:27,038 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134653799]
[2024-11-28 05:10:27,039 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:10:27,039 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:10:27,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:10:27,926 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 05:10:27,927 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:10:27,927 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134653799]
[2024-11-28 05:10:27,927 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134653799] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:10:27,927 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:10:27,927 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-28 05:10:27,927 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316944413]
[2024-11-28 05:10:27,928 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:10:27,929 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-28 05:10:27,929 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:10:27,931 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-28 05:10:27,931 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-28 05:10:27,932 INFO  L87              Difference]: Start difference. First operand 7702 states and 11578 transitions. Second operand  has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 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 05:10:28,329 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:10:28,329 INFO  L93              Difference]: Finished difference Result 15168 states and 22803 transitions.
[2024-11-28 05:10:28,330 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 05:10:28,330 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 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 315
[2024-11-28 05:10:28,331 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:10:28,358 INFO  L225             Difference]: With dead ends: 15168
[2024-11-28 05:10:28,358 INFO  L226             Difference]: Without dead ends: 7704
[2024-11-28 05:10:28,366 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
[2024-11-28 05:10:28,368 INFO  L435           NwaCegarLoop]: 11572 mSDtfsCounter, 0 mSDsluCounter, 34688 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46260 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 05:10:28,369 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46260 Invalid, 36 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 05:10:28,383 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7704 states.
[2024-11-28 05:10:28,510 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7704 to 7704.
[2024-11-28 05:10:28,521 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7704 states, 7703 states have (on average 1.503310398546021) internal successors, (11580), 7703 states have internal predecessors, (11580), 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 05:10:28,553 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7704 states to 7704 states and 11580 transitions.
[2024-11-28 05:10:28,553 INFO  L78                 Accepts]: Start accepts. Automaton has 7704 states and 11580 transitions. Word has length 315
[2024-11-28 05:10:28,554 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:10:28,555 INFO  L471      AbstractCegarLoop]: Abstraction has 7704 states and 11580 transitions.
[2024-11-28 05:10:28,555 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 63.0) internal successors, (315), 5 states have internal predecessors, (315), 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 05:10:28,555 INFO  L276                IsEmpty]: Start isEmpty. Operand 7704 states and 11580 transitions.
[2024-11-28 05:10:28,562 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 317
[2024-11-28 05:10:28,562 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:10:28,562 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]
[2024-11-28 05:10:28,563 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-28 05:10:28,563 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:10:28,564 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:10:28,564 INFO  L85        PathProgramCache]: Analyzing trace with hash 1312066558, now seen corresponding path program 1 times
[2024-11-28 05:10:28,564 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:10:28,564 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798827094]
[2024-11-28 05:10:28,565 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:10:28,565 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:10:28,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:10:30,099 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 05:10:30,102 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:10:30,102 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798827094]
[2024-11-28 05:10:30,102 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798827094] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:10:30,102 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:10:30,102 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-28 05:10:30,102 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81219030]
[2024-11-28 05:10:30,102 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:10:30,103 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-28 05:10:30,103 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:10:30,104 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-28 05:10:30,104 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-28 05:10:30,104 INFO  L87              Difference]: Start difference. First operand 7704 states and 11580 transitions. Second operand  has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 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 05:10:30,486 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:10:30,487 INFO  L93              Difference]: Finished difference Result 16251 states and 24440 transitions.
[2024-11-28 05:10:30,487 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-28 05:10:30,487 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 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 316
[2024-11-28 05:10:30,488 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:10:30,530 INFO  L225             Difference]: With dead ends: 16251
[2024-11-28 05:10:30,531 INFO  L226             Difference]: Without dead ends: 8785
[2024-11-28 05:10:30,539 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
[2024-11-28 05:10:30,540 INFO  L435           NwaCegarLoop]: 11570 mSDtfsCounter, 1687 mSDsluCounter, 34335 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1687 SdHoareTripleChecker+Valid, 45905 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 05:10:30,542 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1687 Valid, 45905 Invalid, 36 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 05:10:30,563 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8785 states.
[2024-11-28 05:10:30,713 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8785 to 8076.
[2024-11-28 05:10:30,727 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8076 states, 8075 states have (on average 1.503157894736842) internal successors, (12138), 8075 states have internal predecessors, (12138), 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 05:10:30,759 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8076 states to 8076 states and 12138 transitions.
[2024-11-28 05:10:30,759 INFO  L78                 Accepts]: Start accepts. Automaton has 8076 states and 12138 transitions. Word has length 316
[2024-11-28 05:10:30,761 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:10:30,761 INFO  L471      AbstractCegarLoop]: Abstraction has 8076 states and 12138 transitions.
[2024-11-28 05:10:30,762 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 63.2) internal successors, (316), 5 states have internal predecessors, (316), 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 05:10:30,762 INFO  L276                IsEmpty]: Start isEmpty. Operand 8076 states and 12138 transitions.
[2024-11-28 05:10:31,093 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3930
[2024-11-28 05:10:31,093 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:10:31,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:10:31,096 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-28 05:10:31,096 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:10:31,099 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:10:31,102 INFO  L85        PathProgramCache]: Analyzing trace with hash -360846369, now seen corresponding path program 1 times
[2024-11-28 05:10:31,102 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:10:31,102 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327787894]
[2024-11-28 05:10:31,104 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:10:31,105 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:10:38,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:10:48,092 INFO  L134       CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 05:10:48,093 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:10:48,093 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327787894]
[2024-11-28 05:10:48,093 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327787894] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:10:48,093 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:10:48,093 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-28 05:10:48,093 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152629705]
[2024-11-28 05:10:48,094 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:10:48,099 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-28 05:10:48,100 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:10:48,106 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-28 05:10:48,106 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 05:10:48,108 INFO  L87              Difference]: Start difference. First operand 8076 states and 12138 transitions. Second operand  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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 05:10:48,300 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:10:48,301 INFO  L93              Difference]: Finished difference Result 15543 states and 23364 transitions.
[2024-11-28 05:10:48,301 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-28 05:10:48,303 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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 3929
[2024-11-28 05:10:48,304 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:10:48,328 INFO  L225             Difference]: With dead ends: 15543
[2024-11-28 05:10:48,328 INFO  L226             Difference]: Without dead ends: 8077
[2024-11-28 05:10:48,337 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 05:10:48,338 INFO  L435           NwaCegarLoop]: 11573 mSDtfsCounter, 0 mSDsluCounter, 11567 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23140 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-28 05:10:48,339 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23140 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-28 05:10:48,352 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8077 states.
[2024-11-28 05:10:48,491 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8077 to 8077.
[2024-11-28 05:10:48,503 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8077 states, 8076 states have (on average 1.503095591877167) internal successors, (12139), 8076 states have internal predecessors, (12139), 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 05:10:48,533 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8077 states to 8077 states and 12139 transitions.
[2024-11-28 05:10:48,533 INFO  L78                 Accepts]: Start accepts. Automaton has 8077 states and 12139 transitions. Word has length 3929
[2024-11-28 05:10:48,534 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:10:48,535 INFO  L471      AbstractCegarLoop]: Abstraction has 8077 states and 12139 transitions.
[2024-11-28 05:10:48,536 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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 05:10:48,536 INFO  L276                IsEmpty]: Start isEmpty. Operand 8077 states and 12139 transitions.
[2024-11-28 05:10:48,644 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3930
[2024-11-28 05:10:48,644 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:10:48,647 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:10:48,647 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-28 05:10:48,647 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:10:48,649 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:10:48,652 INFO  L85        PathProgramCache]: Analyzing trace with hash -1175316914, now seen corresponding path program 1 times
[2024-11-28 05:10:48,652 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:10:48,652 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822875424]
[2024-11-28 05:10:48,654 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:10:48,654 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:10:54,697 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:11:00,241 INFO  L134       CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 05:11:00,242 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:11:00,242 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822875424]
[2024-11-28 05:11:00,242 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822875424] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:11:00,242 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:11:00,243 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-28 05:11:00,243 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860146708]
[2024-11-28 05:11:00,243 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:11:00,246 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-28 05:11:00,246 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:11:00,249 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-28 05:11:00,249 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 05:11:00,251 INFO  L87              Difference]: Start difference. First operand 8077 states and 12139 transitions. Second operand  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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 05:11:00,350 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:11:00,350 INFO  L93              Difference]: Finished difference Result 15545 states and 23366 transitions.
[2024-11-28 05:11:00,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-28 05:11:00,352 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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 3929
[2024-11-28 05:11:00,353 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:11:00,370 INFO  L225             Difference]: With dead ends: 15545
[2024-11-28 05:11:00,370 INFO  L226             Difference]: Without dead ends: 8078
[2024-11-28 05:11:00,378 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 05:11:00,379 INFO  L435           NwaCegarLoop]: 11573 mSDtfsCounter, 0 mSDsluCounter, 11567 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23140 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-28 05:11:00,379 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23140 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-28 05:11:00,390 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8078 states.
[2024-11-28 05:11:00,508 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8078 to 8078.
[2024-11-28 05:11:00,520 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8078 states, 8077 states have (on average 1.5030333044447195) internal successors, (12140), 8077 states have internal predecessors, (12140), 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 05:11:00,530 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8078 states to 8078 states and 12140 transitions.
[2024-11-28 05:11:00,531 INFO  L78                 Accepts]: Start accepts. Automaton has 8078 states and 12140 transitions. Word has length 3929
[2024-11-28 05:11:00,533 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:11:00,533 INFO  L471      AbstractCegarLoop]: Abstraction has 8078 states and 12140 transitions.
[2024-11-28 05:11:00,534 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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 05:11:00,535 INFO  L276                IsEmpty]: Start isEmpty. Operand 8078 states and 12140 transitions.
[2024-11-28 05:11:00,639 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3930
[2024-11-28 05:11:00,639 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:11:00,641 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 05:11:00,641 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-28 05:11:00,641 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:11:00,643 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:11:00,645 INFO  L85        PathProgramCache]: Analyzing trace with hash -35984387, now seen corresponding path program 1 times
[2024-11-28 05:11:00,645 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:11:00,645 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383058352]
[2024-11-28 05:11:00,646 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:11:00,646 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:11:05,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:11:12,300 INFO  L134       CoverageAnalysis]: Checked inductivity of 192 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 05:11:12,301 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:11:12,301 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383058352]
[2024-11-28 05:11:12,301 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383058352] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:11:12,301 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 05:11:12,302 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-28 05:11:12,302 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347158062]
[2024-11-28 05:11:12,302 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:11:12,305 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-28 05:11:12,305 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:11:12,308 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-28 05:11:12,308 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 05:11:12,310 INFO  L87              Difference]: Start difference. First operand 8078 states and 12140 transitions. Second operand  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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 05:11:12,426 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:11:12,427 INFO  L93              Difference]: Finished difference Result 15547 states and 23368 transitions.
[2024-11-28 05:11:12,427 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-28 05:11:12,429 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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 3929
[2024-11-28 05:11:12,432 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:11:12,447 INFO  L225             Difference]: With dead ends: 15547
[2024-11-28 05:11:12,447 INFO  L226             Difference]: Without dead ends: 8079
[2024-11-28 05:11:12,453 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 05:11:12,454 INFO  L435           NwaCegarLoop]: 11573 mSDtfsCounter, 0 mSDsluCounter, 11567 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23140 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-28 05:11:12,454 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23140 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-28 05:11:12,464 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8079 states.
[2024-11-28 05:11:12,561 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8079 to 8079.
[2024-11-28 05:11:12,571 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8079 states, 8078 states have (on average 1.5029710324337708) internal successors, (12141), 8078 states have internal predecessors, (12141), 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 05:11:12,582 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8079 states to 8079 states and 12141 transitions.
[2024-11-28 05:11:12,583 INFO  L78                 Accepts]: Start accepts. Automaton has 8079 states and 12141 transitions. Word has length 3929
[2024-11-28 05:11:12,586 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:11:12,586 INFO  L471      AbstractCegarLoop]: Abstraction has 8079 states and 12141 transitions.
[2024-11-28 05:11:12,587 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1309.6666666666667) internal successors, (3929), 3 states have internal predecessors, (3929), 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 05:11:12,588 INFO  L276                IsEmpty]: Start isEmpty. Operand 8079 states and 12141 transitions.
[2024-11-28 05:11:12,863 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3930
[2024-11-28 05:11:12,863 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:11:12,865 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:12,866 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-28 05:11:12,866 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:11:12,868 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:11:12,870 INFO  L85        PathProgramCache]: Analyzing trace with hash 1535736300, now seen corresponding path program 1 times
[2024-11-28 05:11:12,870 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:11:12,870 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144509885]
[2024-11-28 05:11:12,871 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:11:12,872 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:11:17,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat