./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.6.prop1-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_a247d408-b5f8-4578-8a3e-acb9feae5987/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/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_a247d408-b5f8-4578-8a3e-acb9feae5987/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/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_a247d408-b5f8-4578-8a3e-acb9feae5987/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 8f412f0eaaef44fd041356cd2059bbdb2b5c4b57cce206ae6bd26f56fb7d8ead
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-01 23:04:33,348 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-12-01 23:04:33,403 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-01 23:04:33,408 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-12-01 23:04:33,408 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-01 23:04:33,428 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-01 23:04:33,429 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-01 23:04:33,429 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-01 23:04:33,429 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-01 23:04:33,429 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-12-01 23:04:33,430 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-01 23:04:33,430 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-01 23:04:33,430 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-01 23:04:33,430 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-12-01 23:04:33,430 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-12-01 23:04:33,430 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-01 23:04:33,431 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-12-01 23:04:33,431 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-12-01 23:04:33,431 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-12-01 23:04:33,431 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-12-01 23:04:33,431 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-01 23:04:33,431 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-12-01 23:04:33,431 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-12-01 23:04:33,431 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-01 23:04:33,431 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-12-01 23:04:33,431 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-01 23:04:33,432 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-01 23:04:33,432 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 23:04:33,432 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-01 23:04:33,432 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:04:33,432 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-01 23:04:33,432 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-01 23:04:33,432 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-01 23:04:33,432 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-01 23:04:33,432 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:04:33,433 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-01 23:04:33,433 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-12-01 23:04:33,433 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-12-01 23:04:33,433 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-01 23:04:33,433 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-12-01 23:04:33,433 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-01 23:04:33,433 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-01 23:04:33,433 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-01 23:04:33,433 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-12-01 23:04:33,433 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-01 23:04:33,433 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_a247d408-b5f8-4578-8a3e-acb9feae5987/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 -> 8f412f0eaaef44fd041356cd2059bbdb2b5c4b57cce206ae6bd26f56fb7d8ead
[2024-12-01 23:04:33,637 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-01 23:04:33,644 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-01 23:04:33,646 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-01 23:04:33,647 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-12-01 23:04:33,648 INFO  L274        PluginConnector]: CDTParser initialized
[2024-12-01 23:04:33,649 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.6.prop1-func-interl.c
[2024-12-01 23:04:36,341 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/bin/uautomizer-verify-84ZbGMXZE1/data/2c90ea352/b9602f38bac54ff994a8799f127996d4/FLAGf38bef1cb
[2024-12-01 23:04:36,784 INFO  L384              CDTParser]: Found 1 translation units.
[2024-12-01 23:04:36,784 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.6.prop1-func-interl.c
[2024-12-01 23:04:36,819 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/bin/uautomizer-verify-84ZbGMXZE1/data/2c90ea352/b9602f38bac54ff994a8799f127996d4/FLAGf38bef1cb
[2024-12-01 23:04:36,904 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/bin/uautomizer-verify-84ZbGMXZE1/data/2c90ea352/b9602f38bac54ff994a8799f127996d4
[2024-12-01 23:04:36,906 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-01 23:04:36,907 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-01 23:04:36,909 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-01 23:04:36,909 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-01 23:04:36,913 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-01 23:04:36,914 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:04:36" (1/1) ...
[2024-12-01 23:04:36,915 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a6a4dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:36, skipping insertion in model container
[2024-12-01 23:04:36,915 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:04:36" (1/1) ...
[2024-12-01 23:04:37,056 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-12-01 23:04:37,348 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_a247d408-b5f8-4578-8a3e-acb9feae5987/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.6.prop1-func-interl.c[1172,1185]
[2024-12-01 23:04:38,529 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-01 23:04:38,537 INFO  L200         MainTranslator]: Completed pre-run
[2024-12-01 23:04:38,544 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_a247d408-b5f8-4578-8a3e-acb9feae5987/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.6.prop1-func-interl.c[1172,1185]
[2024-12-01 23:04:39,329 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-01 23:04:39,343 INFO  L204         MainTranslator]: Completed translation
[2024-12-01 23:04:39,344 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39 WrapperNode
[2024-12-01 23:04:39,344 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-01 23:04:39,345 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-01 23:04:39,345 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-01 23:04:39,345 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-01 23:04:39,350 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:39,626 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:42,874 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 52431
[2024-12-01 23:04:42,875 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-01 23:04:42,876 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-01 23:04:42,876 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-01 23:04:42,876 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-12-01 23:04:42,885 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:42,885 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:43,746 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:44,246 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].
[2024-12-01 23:04:44,246 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:44,247 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:45,245 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:45,333 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:45,470 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:45,665 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:45,794 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:46,611 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-01 23:04:46,612 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-01 23:04:46,613 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-12-01 23:04:46,613 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-12-01 23:04:46,614 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (1/1) ...
[2024-12-01 23:04:46,620 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-01 23:04:46,630 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-01 23:04:46,641 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-01 23:04:46,643 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a247d408-b5f8-4578-8a3e-acb9feae5987/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-01 23:04:46,664 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-01 23:04:46,664 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-01 23:04:46,664 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-01 23:04:46,664 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-01 23:04:48,523 INFO  L234             CfgBuilder]: Building ICFG
[2024-12-01 23:04:48,524 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-01 23:11:05,848 INFO  L?                        ?]: Removed 29863 outVars from TransFormulas that were not future-live.
[2024-12-01 23:11:05,849 INFO  L283             CfgBuilder]: Performing block encoding
[2024-12-01 23:11:06,118 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-01 23:11:06,119 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-01 23:11:06,119 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:06 BoogieIcfgContainer
[2024-12-01 23:11:06,120 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-01 23:11:06,127 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-01 23:11:06,128 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-12-01 23:11:06,141 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-12-01 23:11:06,141 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:04:36" (1/3) ...
[2024-12-01 23:11:06,142 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b66920b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:11:06, skipping insertion in model container
[2024-12-01 23:11:06,142 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:04:39" (2/3) ...
[2024-12-01 23:11:06,143 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b66920b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:11:06, skipping insertion in model container
[2024-12-01 23:11:06,143 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:11:06" (3/3) ...
[2024-12-01 23:11:06,145 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lifts.6.prop1-func-interl.c
[2024-12-01 23:11:06,168 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-01 23:11:06,170 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.lifts.6.prop1-func-interl.c that has 1 procedures, 18720 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-01 23:11:06,467 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-01 23:11:06,487 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;@6c9b33a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-01 23:11:06,487 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-01 23:11:06,533 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 18720 states, 18718 states have (on average 1.5007479431563202) internal successors, (28091), 18719 states have internal predecessors, (28091), 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)
[2024-12-01 23:11:06,564 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 628
[2024-12-01 23:11:06,564 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-01 23:11:06,566 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]
[2024-12-01 23:11:06,566 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:11:06,572 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:11:06,573 INFO  L85        PathProgramCache]: Analyzing trace with hash 132492604, now seen corresponding path program 1 times
[2024-12-01 23:11:06,580 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:11:06,581 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302223521]
[2024-12-01 23:11:06,582 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:11:06,582 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:11:07,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:11:09,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:11:09,020 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:11:09,021 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302223521]
[2024-12-01 23:11:09,021 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302223521] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:11:09,022 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:11:09,022 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-01 23:11:09,024 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535893196]
[2024-12-01 23:11:09,025 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:11:09,030 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 23:11:09,030 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:11:09,052 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 23:11:09,052 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 23:11:09,089 INFO  L87              Difference]: Start difference. First operand  has 18720 states, 18718 states have (on average 1.5007479431563202) internal successors, (28091), 18719 states have internal predecessors, (28091), 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 156.75) internal successors, (627), 4 states have internal predecessors, (627), 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)
[2024-12-01 23:11:09,821 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:11:09,821 INFO  L93              Difference]: Finished difference Result 36953 states and 55455 transitions.
[2024-12-01 23:11:09,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-01 23:11:09,824 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 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 627
[2024-12-01 23:11:09,826 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:11:09,885 INFO  L225             Difference]: With dead ends: 36953
[2024-12-01 23:11:09,885 INFO  L226             Difference]: Without dead ends: 18719
[2024-12-01 23:11:09,906 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
[2024-12-01 23:11:09,910 INFO  L435           NwaCegarLoop]: 28085 mSDtfsCounter, 0 mSDsluCounter, 56164 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84249 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-01 23:11:09,911 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84249 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-01 23:11:09,945 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18719 states.
[2024-12-01 23:11:10,216 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18719 to 18719.
[2024-12-01 23:11:10,247 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18719 states, 18718 states have (on average 1.5006410941339887) internal successors, (28089), 18718 states have internal predecessors, (28089), 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)
[2024-12-01 23:11:10,302 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18719 states to 18719 states and 28089 transitions.
[2024-12-01 23:11:10,303 INFO  L78                 Accepts]: Start accepts. Automaton has 18719 states and 28089 transitions. Word has length 627
[2024-12-01 23:11:10,305 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:11:10,305 INFO  L471      AbstractCegarLoop]: Abstraction has 18719 states and 28089 transitions.
[2024-12-01 23:11:10,306 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 156.75) internal successors, (627), 4 states have internal predecessors, (627), 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)
[2024-12-01 23:11:10,306 INFO  L276                IsEmpty]: Start isEmpty. Operand 18719 states and 28089 transitions.
[2024-12-01 23:11:10,317 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 629
[2024-12-01 23:11:10,317 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-01 23:11:10,318 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]
[2024-12-01 23:11:10,318 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-01 23:11:10,318 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:11:10,319 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:11:10,319 INFO  L85        PathProgramCache]: Analyzing trace with hash -185997376, now seen corresponding path program 1 times
[2024-12-01 23:11:10,320 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:11:10,320 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570934355]
[2024-12-01 23:11:10,320 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:11:10,320 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:11:10,574 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:11:11,358 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:11:11,359 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:11:11,359 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570934355]
[2024-12-01 23:11:11,359 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570934355] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:11:11,359 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:11:11,359 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-01 23:11:11,360 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993398407]
[2024-12-01 23:11:11,360 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:11:11,362 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 23:11:11,362 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:11:11,363 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 23:11:11,363 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 23:11:11,364 INFO  L87              Difference]: Start difference. First operand 18719 states and 28089 transitions. Second operand  has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 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)
[2024-12-01 23:11:11,790 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:11:11,791 INFO  L93              Difference]: Finished difference Result 36954 states and 55453 transitions.
[2024-12-01 23:11:11,791 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-01 23:11:11,792 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 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 628
[2024-12-01 23:11:11,793 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:11:11,832 INFO  L225             Difference]: With dead ends: 36954
[2024-12-01 23:11:11,832 INFO  L226             Difference]: Without dead ends: 18721
[2024-12-01 23:11:11,846 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
[2024-12-01 23:11:11,847 INFO  L435           NwaCegarLoop]: 28085 mSDtfsCounter, 0 mSDsluCounter, 56160 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84245 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
[2024-12-01 23:11:11,848 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84245 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-01 23:11:11,869 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18721 states.
[2024-12-01 23:11:12,074 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18721 to 18721.
[2024-12-01 23:11:12,095 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18721 states, 18720 states have (on average 1.500587606837607) internal successors, (28091), 18720 states have internal predecessors, (28091), 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)
[2024-12-01 23:11:12,137 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18721 states to 18721 states and 28091 transitions.
[2024-12-01 23:11:12,137 INFO  L78                 Accepts]: Start accepts. Automaton has 18721 states and 28091 transitions. Word has length 628
[2024-12-01 23:11:12,138 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:11:12,138 INFO  L471      AbstractCegarLoop]: Abstraction has 18721 states and 28091 transitions.
[2024-12-01 23:11:12,139 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 157.0) internal successors, (628), 4 states have internal predecessors, (628), 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)
[2024-12-01 23:11:12,139 INFO  L276                IsEmpty]: Start isEmpty. Operand 18721 states and 28091 transitions.
[2024-12-01 23:11:12,148 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 630
[2024-12-01 23:11:12,148 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-01 23:11:12,148 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]
[2024-12-01 23:11:12,148 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-01 23:11:12,149 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:11:12,149 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:11:12,149 INFO  L85        PathProgramCache]: Analyzing trace with hash 1726054037, now seen corresponding path program 1 times
[2024-12-01 23:11:12,150 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:11:12,150 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126938005]
[2024-12-01 23:11:12,150 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:11:12,150 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:11:12,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:11:13,965 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:11:13,966 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:11:13,966 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126938005]
[2024-12-01 23:11:13,966 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126938005] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:11:13,966 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:11:13,966 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-01 23:11:13,966 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44870161]
[2024-12-01 23:11:13,966 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:11:13,967 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 23:11:13,968 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:11:13,968 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 23:11:13,968 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 23:11:13,969 INFO  L87              Difference]: Start difference. First operand 18721 states and 28091 transitions. Second operand  has 4 states, 4 states have (on average 157.25) internal successors, (629), 4 states have internal predecessors, (629), 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)
[2024-12-01 23:11:14,535 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:11:14,535 INFO  L93              Difference]: Finished difference Result 36958 states and 55457 transitions.
[2024-12-01 23:11:14,536 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-01 23:11:14,536 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 157.25) internal successors, (629), 4 states have internal predecessors, (629), 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 629
[2024-12-01 23:11:14,538 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:11:14,577 INFO  L225             Difference]: With dead ends: 36958
[2024-12-01 23:11:14,577 INFO  L226             Difference]: Without dead ends: 18723
[2024-12-01 23:11:14,596 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
[2024-12-01 23:11:14,597 INFO  L435           NwaCegarLoop]: 28085 mSDtfsCounter, 0 mSDsluCounter, 56154 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84239 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-01 23:11:14,598 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84239 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-01 23:11:14,623 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18723 states.
[2024-12-01 23:11:14,872 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18723 to 18723.
[2024-12-01 23:11:14,894 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18723 states, 18722 states have (on average 1.5005341309689135) internal successors, (28093), 18722 states have internal predecessors, (28093), 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)
[2024-12-01 23:11:14,928 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18723 states to 18723 states and 28093 transitions.
[2024-12-01 23:11:14,928 INFO  L78                 Accepts]: Start accepts. Automaton has 18723 states and 28093 transitions. Word has length 629
[2024-12-01 23:11:14,929 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:11:14,930 INFO  L471      AbstractCegarLoop]: Abstraction has 18723 states and 28093 transitions.
[2024-12-01 23:11:14,930 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 157.25) internal successors, (629), 4 states have internal predecessors, (629), 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)
[2024-12-01 23:11:14,930 INFO  L276                IsEmpty]: Start isEmpty. Operand 18723 states and 28093 transitions.
[2024-12-01 23:11:14,945 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 631
[2024-12-01 23:11:14,945 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-01 23:11:14,945 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]
[2024-12-01 23:11:14,945 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-01 23:11:14,945 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:11:14,946 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:11:14,946 INFO  L85        PathProgramCache]: Analyzing trace with hash -1418008857, now seen corresponding path program 1 times
[2024-12-01 23:11:14,946 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:11:14,946 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40969301]
[2024-12-01 23:11:14,947 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:11:14,947 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:11:15,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:11:16,199 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:11:16,200 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:11:16,200 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40969301]
[2024-12-01 23:11:16,200 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40969301] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:11:16,200 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:11:16,200 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-01 23:11:16,200 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831361152]
[2024-12-01 23:11:16,200 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:11:16,201 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-01 23:11:16,201 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:11:16,202 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-01 23:11:16,202 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-01 23:11:16,202 INFO  L87              Difference]: Start difference. First operand 18723 states and 28093 transitions. Second operand  has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 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)
[2024-12-01 23:11:16,895 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:11:16,896 INFO  L93              Difference]: Finished difference Result 53071 states and 79636 transitions.
[2024-12-01 23:11:16,896 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-01 23:11:16,896 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 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 630
[2024-12-01 23:11:16,897 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:11:16,966 INFO  L225             Difference]: With dead ends: 53071
[2024-12-01 23:11:16,966 INFO  L226             Difference]: Without dead ends: 34834
[2024-12-01 23:11:16,990 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
[2024-12-01 23:11:16,991 INFO  L435           NwaCegarLoop]: 28081 mSDtfsCounter, 24287 mSDsluCounter, 83510 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24287 SdHoareTripleChecker+Valid, 111591 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-01 23:11:16,991 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [24287 Valid, 111591 Invalid, 30 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-01 23:11:17,032 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34834 states.
[2024-12-01 23:11:17,324 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34834 to 19475.
[2024-12-01 23:11:17,347 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19475 states, 19474 states have (on average 1.5005135051864025) internal successors, (29221), 19474 states have internal predecessors, (29221), 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)
[2024-12-01 23:11:17,375 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19475 states to 19475 states and 29221 transitions.
[2024-12-01 23:11:17,375 INFO  L78                 Accepts]: Start accepts. Automaton has 19475 states and 29221 transitions. Word has length 630
[2024-12-01 23:11:17,376 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:11:17,376 INFO  L471      AbstractCegarLoop]: Abstraction has 19475 states and 29221 transitions.
[2024-12-01 23:11:17,377 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 126.0) internal successors, (630), 5 states have internal predecessors, (630), 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)
[2024-12-01 23:11:17,377 INFO  L276                IsEmpty]: Start isEmpty. Operand 19475 states and 29221 transitions.
[2024-12-01 23:11:18,183 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9702
[2024-12-01 23:11:18,183 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-01 23:11:18,187 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]
[2024-12-01 23:11:18,187 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-01 23:11:18,187 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:11:18,190 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:11:18,196 INFO  L85        PathProgramCache]: Analyzing trace with hash 1402399595, now seen corresponding path program 1 times
[2024-12-01 23:11:18,196 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:11:18,196 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670817543]
[2024-12-01 23:11:18,200 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:11:18,200 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:11:47,717 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:12:32,023 INFO  L134       CoverageAnalysis]: Checked inductivity of 382 backedges. 382 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:12:32,023 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:12:32,023 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670817543]
[2024-12-01 23:12:32,023 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670817543] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:12:32,023 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:12:32,025 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-01 23:12:32,025 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431318228]
[2024-12-01 23:12:32,025 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:12:32,033 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 23:12:32,034 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:12:32,041 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 23:12:32,041 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 23:12:32,045 INFO  L87              Difference]: Start difference. First operand 19475 states and 29221 transitions. Second operand  has 4 states, 4 states have (on average 2425.25) internal successors, (9701), 4 states have internal predecessors, (9701), 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)
[2024-12-01 23:12:33,377 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:12:33,377 INFO  L93              Difference]: Finished difference Result 37682 states and 56556 transitions.
[2024-12-01 23:12:33,378 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-01 23:12:33,380 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2425.25) internal successors, (9701), 4 states have internal predecessors, (9701), 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 9701
[2024-12-01 23:12:33,381 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:12:33,424 INFO  L225             Difference]: With dead ends: 37682
[2024-12-01 23:12:33,424 INFO  L226             Difference]: Without dead ends: 19445
[2024-12-01 23:12:33,438 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-01 23:12:33,439 INFO  L435           NwaCegarLoop]: 27736 mSDtfsCounter, 27256 mSDsluCounter, 27733 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27256 SdHoareTripleChecker+Valid, 55469 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2024-12-01 23:12:33,439 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [27256 Valid, 55469 Invalid, 602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2024-12-01 23:12:33,472 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19445 states.
[2024-12-01 23:12:33,750 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19445 to 19445.
[2024-12-01 23:12:33,769 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19445 states, 19444 states have (on average 1.4996399917712404) internal successors, (29159), 19444 states have internal predecessors, (29159), 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)
[2024-12-01 23:12:33,811 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19445 states to 19445 states and 29159 transitions.
[2024-12-01 23:12:33,811 INFO  L78                 Accepts]: Start accepts. Automaton has 19445 states and 29159 transitions. Word has length 9701
[2024-12-01 23:12:33,815 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:12:33,815 INFO  L471      AbstractCegarLoop]: Abstraction has 19445 states and 29159 transitions.
[2024-12-01 23:12:33,817 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2425.25) internal successors, (9701), 4 states have internal predecessors, (9701), 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)
[2024-12-01 23:12:33,817 INFO  L276                IsEmpty]: Start isEmpty. Operand 19445 states and 29159 transitions.
[2024-12-01 23:12:34,531 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9703
[2024-12-01 23:12:34,531 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-01 23:12:34,534 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]
[2024-12-01 23:12:34,534 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-01 23:12:34,535 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:12:34,536 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:12:34,542 INFO  L85        PathProgramCache]: Analyzing trace with hash 30458367, now seen corresponding path program 1 times
[2024-12-01 23:12:34,542 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:12:34,542 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117162377]
[2024-12-01 23:12:34,545 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:12:34,545 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:12:53,209 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:13:26,693 INFO  L134       CoverageAnalysis]: Checked inductivity of 382 backedges. 382 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:13:26,693 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:13:26,693 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117162377]
[2024-12-01 23:13:26,693 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117162377] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:13:26,693 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:13:26,694 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-01 23:13:26,694 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058520072]
[2024-12-01 23:13:26,694 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:13:26,702 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-01 23:13:26,702 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:13:26,706 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-01 23:13:26,706 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-01 23:13:26,708 INFO  L87              Difference]: Start difference. First operand 19445 states and 29159 transitions. Second operand  has 4 states, 4 states have (on average 2425.5) internal successors, (9702), 4 states have internal predecessors, (9702), 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)
[2024-12-01 23:13:27,430 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-01 23:13:27,430 INFO  L93              Difference]: Finished difference Result 37655 states and 56466 transitions.
[2024-12-01 23:13:27,432 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-01 23:13:27,434 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2425.5) internal successors, (9702), 4 states have internal predecessors, (9702), 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 9702
[2024-12-01 23:13:27,435 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-01 23:13:27,466 INFO  L225             Difference]: With dead ends: 37655
[2024-12-01 23:13:27,467 INFO  L226             Difference]: Without dead ends: 19445
[2024-12-01 23:13:27,480 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-01 23:13:27,483 INFO  L435           NwaCegarLoop]: 27875 mSDtfsCounter, 27250 mSDsluCounter, 27867 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27250 SdHoareTripleChecker+Valid, 55742 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-01 23:13:27,484 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [27250 Valid, 55742 Invalid, 309 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-01 23:13:27,520 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19445 states.
[2024-12-01 23:13:27,816 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19445 to 19445.
[2024-12-01 23:13:27,835 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19445 states, 19444 states have (on average 1.4995885620242748) internal successors, (29158), 19444 states have internal predecessors, (29158), 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)
[2024-12-01 23:13:27,878 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19445 states to 19445 states and 29158 transitions.
[2024-12-01 23:13:27,879 INFO  L78                 Accepts]: Start accepts. Automaton has 19445 states and 29158 transitions. Word has length 9702
[2024-12-01 23:13:27,881 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-01 23:13:27,881 INFO  L471      AbstractCegarLoop]: Abstraction has 19445 states and 29158 transitions.
[2024-12-01 23:13:27,883 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2425.5) internal successors, (9702), 4 states have internal predecessors, (9702), 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)
[2024-12-01 23:13:27,883 INFO  L276                IsEmpty]: Start isEmpty. Operand 19445 states and 29158 transitions.
[2024-12-01 23:13:28,649 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9704
[2024-12-01 23:13:28,649 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-01 23:13:28,653 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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[2024-12-01 23:13:28,653 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-01 23:13:28,653 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-01 23:13:28,655 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-01 23:13:28,658 INFO  L85        PathProgramCache]: Analyzing trace with hash 453095779, now seen corresponding path program 1 times
[2024-12-01 23:13:28,658 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-01 23:13:28,658 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059544359]
[2024-12-01 23:13:28,659 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-01 23:13:28,659 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-01 23:13:48,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-01 23:14:53,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 382 backedges. 382 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-01 23:14:53,096 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-01 23:14:53,096 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059544359]
[2024-12-01 23:14:53,097 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059544359] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-01 23:14:53,097 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-01 23:14:53,098 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-01 23:14:53,098 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430267526]
[2024-12-01 23:14:53,098 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-01 23:14:53,104 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-01 23:14:53,104 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-01 23:14:53,110 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-01 23:14:53,111 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-12-01 23:14:53,113 INFO  L87              Difference]: Start difference. First operand 19445 states and 29158 transitions. Second operand  has 7 states, 7 states have (on average 1386.142857142857) internal successors, (9703), 7 states have internal predecessors, (9703), 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)
[2024-12-01 23:14:57,366 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-12-01 23:15:01,380 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-12-01 23:15:05,395 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-12-01 23:15:09,416 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-12-01 23:15:13,453 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-12-01 23:15:17,465 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-12-01 23:15:21,475 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []