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


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


Checking for ERROR reachability
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.5.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC --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 071c55f22bc4d778dfee062839edc2cdc8da7f6dd90da32fed9ab4e7927e9fbf
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 23:31:20,297 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-23 23:31:20,383 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-23 23:31:20,388 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 23:31:20,388 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 23:31:20,425 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 23:31:20,425 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 23:31:20,425 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 23:31:20,426 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 23:31:20,427 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-23 23:31:20,428 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 23:31:20,428 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 23:31:20,429 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 23:31:20,429 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-23 23:31:20,430 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-23 23:31:20,430 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 23:31:20,430 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-23 23:31:20,431 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-23 23:31:20,431 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-23 23:31:20,431 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 23:31:20,431 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 23:31:20,431 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 23:31:20,431 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-23 23:31:20,431 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 23:31:20,431 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-23 23:31:20,432 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 23:31:20,432 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-23 23:31:20,432 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:31:20,432 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-23 23:31:20,432 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:31:20,432 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 23:31:20,432 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-23 23:31:20,432 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 23:31:20,433 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-23 23:31:20,433 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:31:20,434 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 23:31:20,434 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 23:31:20,434 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-23 23:31:20,434 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 23:31:20,434 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-23 23:31:20,434 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 23:31:20,434 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 23:31:20,434 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 23:31:20,435 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 23:31:20,435 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 23:31:20,435 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_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC
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 -> 071c55f22bc4d778dfee062839edc2cdc8da7f6dd90da32fed9ab4e7927e9fbf
[2024-11-23 23:31:20,730 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 23:31:20,739 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 23:31:20,741 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 23:31:20,743 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-23 23:31:20,743 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-23 23:31:20,745 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.5.prop1-func-interl.c
[2024-11-23 23:31:23,786 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/data/7a7254814/d0dd0e79c5854ba09b83f6a45d810b39/FLAGba69c49ec
[2024-11-23 23:31:24,459 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-23 23:31:24,460 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.5.prop1-func-interl.c
[2024-11-23 23:31:24,500 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/data/7a7254814/d0dd0e79c5854ba09b83f6a45d810b39/FLAGba69c49ec
[2024-11-23 23:31:24,878 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/data/7a7254814/d0dd0e79c5854ba09b83f6a45d810b39
[2024-11-23 23:31:24,881 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 23:31:24,882 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 23:31:24,884 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 23:31:24,884 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 23:31:24,887 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 23:31:24,888 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:31:24" (1/1) ...
[2024-11-23 23:31:24,889 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449fb934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:24, skipping insertion in model container
[2024-11-23 23:31:24,889 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:31:24" (1/1) ...
[2024-11-23 23:31:25,045 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-23 23:31:25,346 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_07611533-b722-4f4a-81b7-c4845a56af3e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.5.prop1-func-interl.c[1176,1189]
[2024-11-23 23:31:26,496 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:31:26,516 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-23 23:31:26,528 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_07611533-b722-4f4a-81b7-c4845a56af3e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.5.prop1-func-interl.c[1176,1189]
[2024-11-23 23:31:27,137 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-23 23:31:27,153 INFO  L204         MainTranslator]: Completed translation
[2024-11-23 23:31:27,154 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27 WrapperNode
[2024-11-23 23:31:27,154 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 23:31:27,155 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 23:31:27,156 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 23:31:27,157 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 23:31:27,168 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:27,405 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:29,956 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25487
[2024-11-23 23:31:29,957 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 23:31:29,958 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 23:31:29,958 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 23:31:29,958 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 23:31:29,967 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:29,967 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:30,770 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:31,158 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].
[2024-11-23 23:31:31,159 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:31,159 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:31,946 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:32,002 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:32,120 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:32,246 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:32,347 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:32,984 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 23:31:32,985 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 23:31:32,985 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 23:31:32,985 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-23 23:31:32,986 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (1/1) ...
[2024-11-23 23:31:32,994 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 23:31:33,008 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 23:31:33,024 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 23:31:33,030 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07611533-b722-4f4a-81b7-c4845a56af3e/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 23:31:33,053 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 23:31:33,054 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 23:31:33,054 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 23:31:33,054 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 23:31:34,552 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-23 23:31:34,555 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 23:32:45,468 INFO  L?                        ?]: Removed 14431 outVars from TransFormulas that were not future-live.
[2024-11-23 23:32:45,469 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-23 23:32:45,597 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 23:32:45,597 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-23 23:32:45,598 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:45 BoogieIcfgContainer
[2024-11-23 23:32:45,598 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 23:32:45,600 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 23:32:45,600 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 23:32:45,605 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-23 23:32:45,605 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:31:24" (1/3) ...
[2024-11-23 23:32:45,606 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2553d9ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:45, skipping insertion in model container
[2024-11-23 23:32:45,606 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:27" (2/3) ...
[2024-11-23 23:32:45,606 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2553d9ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:32:45, skipping insertion in model container
[2024-11-23 23:32:45,606 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:32:45" (3/3) ...
[2024-11-23 23:32:45,608 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.5.prop1-func-interl.c
[2024-11-23 23:32:45,623 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 23:32:45,625 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.5.prop1-func-interl.c that has 1 procedures, 8958 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-23 23:32:45,856 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 23:32:45,870 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;@7741bea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 23:32:45,871 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 23:32:45,903 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8958 states, 8956 states have (on average 1.5043546225993747) internal successors, (13473), 8957 states have internal predecessors, (13473), 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)
[2024-11-23 23:32:45,936 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 350
[2024-11-23 23:32:45,936 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:32:45,937 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]
[2024-11-23 23:32:45,937 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:32:45,946 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:32:45,946 INFO  L85        PathProgramCache]: Analyzing trace with hash -1993525306, now seen corresponding path program 1 times
[2024-11-23 23:32:45,954 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:32:45,955 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475902386]
[2024-11-23 23:32:45,956 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:32:45,956 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:32:46,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:32:48,441 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:32:48,445 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:32:48,446 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475902386]
[2024-11-23 23:32:48,449 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475902386] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:32:48,449 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:32:48,449 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:32:48,451 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567594881]
[2024-11-23 23:32:48,452 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:32:48,458 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:32:48,459 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:32:48,487 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:32:48,488 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:32:48,510 INFO  L87              Difference]: Start difference. First operand  has 8958 states, 8956 states have (on average 1.5043546225993747) internal successors, (13473), 8957 states have internal predecessors, (13473), 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 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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)
[2024-11-23 23:32:49,183 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:32:49,184 INFO  L93              Difference]: Finished difference Result 17589 states and 26459 transitions.
[2024-11-23 23:32:49,187 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:32:49,188 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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 349
[2024-11-23 23:32:49,190 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:32:49,253 INFO  L225             Difference]: With dead ends: 17589
[2024-11-23 23:32:49,253 INFO  L226             Difference]: Without dead ends: 8957
[2024-11-23 23:32:49,274 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
[2024-11-23 23:32:49,281 INFO  L435           NwaCegarLoop]: 13467 mSDtfsCounter, 0 mSDsluCounter, 26928 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40395 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
[2024-11-23 23:32:49,281 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40395 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:32:49,317 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8957 states.
[2024-11-23 23:32:49,582 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8957 to 8957.
[2024-11-23 23:32:49,609 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8957 states, 8956 states have (on average 1.5041313086199195) internal successors, (13471), 8956 states have internal predecessors, (13471), 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)
[2024-11-23 23:32:49,653 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8957 states to 8957 states and 13471 transitions.
[2024-11-23 23:32:49,657 INFO  L78                 Accepts]: Start accepts. Automaton has 8957 states and 13471 transitions. Word has length 349
[2024-11-23 23:32:49,659 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:32:49,661 INFO  L471      AbstractCegarLoop]: Abstraction has 8957 states and 13471 transitions.
[2024-11-23 23:32:49,662 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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)
[2024-11-23 23:32:49,662 INFO  L276                IsEmpty]: Start isEmpty. Operand 8957 states and 13471 transitions.
[2024-11-23 23:32:49,670 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 351
[2024-11-23 23:32:49,672 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:32:49,673 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]
[2024-11-23 23:32:49,673 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 23:32:49,674 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:32:49,675 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:32:49,675 INFO  L85        PathProgramCache]: Analyzing trace with hash -1668044953, now seen corresponding path program 1 times
[2024-11-23 23:32:49,675 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:32:49,676 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351645459]
[2024-11-23 23:32:49,676 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:32:49,676 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:32:49,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:32:50,588 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:32:50,591 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:32:50,591 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351645459]
[2024-11-23 23:32:50,591 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351645459] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:32:50,591 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:32:50,591 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:32:50,591 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772075667]
[2024-11-23 23:32:50,591 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:32:50,593 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:32:50,593 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:32:50,598 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:32:50,598 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:32:50,599 INFO  L87              Difference]: Start difference. First operand 8957 states and 13471 transitions. Second operand  has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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)
[2024-11-23 23:32:50,981 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:32:50,981 INFO  L93              Difference]: Finished difference Result 17590 states and 26457 transitions.
[2024-11-23 23:32:50,982 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:32:50,983 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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 350
[2024-11-23 23:32:50,985 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:32:51,015 INFO  L225             Difference]: With dead ends: 17590
[2024-11-23 23:32:51,015 INFO  L226             Difference]: Without dead ends: 8959
[2024-11-23 23:32:51,024 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
[2024-11-23 23:32:51,025 INFO  L435           NwaCegarLoop]: 13467 mSDtfsCounter, 0 mSDsluCounter, 26924 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40391 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
[2024-11-23 23:32:51,026 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40391 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:32:51,042 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8959 states.
[2024-11-23 23:32:51,193 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8959 to 8959.
[2024-11-23 23:32:51,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8959 states, 8958 states have (on average 1.5040187541862022) internal successors, (13473), 8958 states have internal predecessors, (13473), 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)
[2024-11-23 23:32:51,242 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8959 states to 8959 states and 13473 transitions.
[2024-11-23 23:32:51,242 INFO  L78                 Accepts]: Start accepts. Automaton has 8959 states and 13473 transitions. Word has length 350
[2024-11-23 23:32:51,244 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:32:51,244 INFO  L471      AbstractCegarLoop]: Abstraction has 8959 states and 13473 transitions.
[2024-11-23 23:32:51,244 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 87.5) internal successors, (350), 4 states have internal predecessors, (350), 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)
[2024-11-23 23:32:51,245 INFO  L276                IsEmpty]: Start isEmpty. Operand 8959 states and 13473 transitions.
[2024-11-23 23:32:51,255 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 352
[2024-11-23 23:32:51,255 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:32:51,256 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]
[2024-11-23 23:32:51,256 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-23 23:32:51,256 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:32:51,256 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:32:51,260 INFO  L85        PathProgramCache]: Analyzing trace with hash -1267749697, now seen corresponding path program 1 times
[2024-11-23 23:32:51,260 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:32:51,260 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531514172]
[2024-11-23 23:32:51,260 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:32:51,261 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:32:51,456 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:32:52,152 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:32:52,153 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:32:52,153 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531514172]
[2024-11-23 23:32:52,153 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531514172] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:32:52,153 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:32:52,153 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:32:52,153 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454113209]
[2024-11-23 23:32:52,153 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:32:52,154 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:32:52,155 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:32:52,156 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:32:52,156 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:32:52,156 INFO  L87              Difference]: Start difference. First operand 8959 states and 13473 transitions. Second operand  has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 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)
[2024-11-23 23:32:52,504 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:32:52,505 INFO  L93              Difference]: Finished difference Result 17594 states and 26461 transitions.
[2024-11-23 23:32:52,505 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:32:52,505 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 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 351
[2024-11-23 23:32:52,507 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:32:52,547 INFO  L225             Difference]: With dead ends: 17594
[2024-11-23 23:32:52,547 INFO  L226             Difference]: Without dead ends: 8961
[2024-11-23 23:32:52,557 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
[2024-11-23 23:32:52,558 INFO  L435           NwaCegarLoop]: 13467 mSDtfsCounter, 0 mSDsluCounter, 26918 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40385 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:32:52,559 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40385 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:32:52,575 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8961 states.
[2024-11-23 23:32:52,722 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8961 to 8961.
[2024-11-23 23:32:52,737 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8961 states, 8960 states have (on average 1.50390625) internal successors, (13475), 8960 states have internal predecessors, (13475), 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)
[2024-11-23 23:32:52,769 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8961 states to 8961 states and 13475 transitions.
[2024-11-23 23:32:52,770 INFO  L78                 Accepts]: Start accepts. Automaton has 8961 states and 13475 transitions. Word has length 351
[2024-11-23 23:32:52,774 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:32:52,774 INFO  L471      AbstractCegarLoop]: Abstraction has 8961 states and 13475 transitions.
[2024-11-23 23:32:52,774 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 87.75) internal successors, (351), 4 states have internal predecessors, (351), 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)
[2024-11-23 23:32:52,774 INFO  L276                IsEmpty]: Start isEmpty. Operand 8961 states and 13475 transitions.
[2024-11-23 23:32:52,783 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 353
[2024-11-23 23:32:52,783 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:32:52,783 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]
[2024-11-23 23:32:52,783 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-23 23:32:52,784 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:32:52,784 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:32:52,784 INFO  L85        PathProgramCache]: Analyzing trace with hash 263354094, now seen corresponding path program 1 times
[2024-11-23 23:32:52,784 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:32:52,785 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731453622]
[2024-11-23 23:32:52,785 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:32:52,785 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:32:52,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:32:53,836 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:32:53,838 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:32:53,838 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731453622]
[2024-11-23 23:32:53,838 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731453622] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:32:53,838 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:32:53,839 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 23:32:53,839 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896362002]
[2024-11-23 23:32:53,839 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:32:53,839 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 23:32:53,840 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:32:53,840 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 23:32:53,840 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:32:53,841 INFO  L87              Difference]: Start difference. First operand 8961 states and 13475 transitions. Second operand  has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 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)
[2024-11-23 23:32:54,444 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:32:54,444 INFO  L93              Difference]: Finished difference Result 24961 states and 37546 transitions.
[2024-11-23 23:32:54,445 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-23 23:32:54,445 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 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 352
[2024-11-23 23:32:54,446 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:32:54,499 INFO  L225             Difference]: With dead ends: 24961
[2024-11-23 23:32:54,499 INFO  L226             Difference]: Without dead ends: 16326
[2024-11-23 23:32:54,512 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
[2024-11-23 23:32:54,513 INFO  L435           NwaCegarLoop]: 13463 mSDtfsCounter, 11231 mSDsluCounter, 39896 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11231 SdHoareTripleChecker+Valid, 53359 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-23 23:32:54,515 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11231 Valid, 53359 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 23:32:54,546 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16326 states.
[2024-11-23 23:32:54,771 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16326 to 9317.
[2024-11-23 23:32:54,789 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9317 states, 9316 states have (on average 1.503756977243452) internal successors, (14009), 9316 states have internal predecessors, (14009), 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)
[2024-11-23 23:32:54,824 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9317 states to 9317 states and 14009 transitions.
[2024-11-23 23:32:54,825 INFO  L78                 Accepts]: Start accepts. Automaton has 9317 states and 14009 transitions. Word has length 352
[2024-11-23 23:32:54,826 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:32:54,826 INFO  L471      AbstractCegarLoop]: Abstraction has 9317 states and 14009 transitions.
[2024-11-23 23:32:54,826 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 70.4) internal successors, (352), 5 states have internal predecessors, (352), 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)
[2024-11-23 23:32:54,827 INFO  L276                IsEmpty]: Start isEmpty. Operand 9317 states and 14009 transitions.
[2024-11-23 23:32:55,352 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4588
[2024-11-23 23:32:55,353 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 23:32:55,356 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-11-23 23:32:55,356 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-23 23:32:55,356 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 23:32:55,358 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 23:32:55,361 INFO  L85        PathProgramCache]: Analyzing trace with hash -2129687227, now seen corresponding path program 1 times
[2024-11-23 23:32:55,362 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 23:32:55,362 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621105282]
[2024-11-23 23:32:55,364 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 23:32:55,364 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 23:33:05,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 23:33:19,448 INFO  L134       CoverageAnalysis]: Checked inductivity of 184 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 23:33:19,448 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 23:33:19,448 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621105282]
[2024-11-23 23:33:19,448 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621105282] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 23:33:19,448 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 23:33:19,449 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 23:33:19,449 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775883480]
[2024-11-23 23:33:19,449 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 23:33:19,453 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 23:33:19,453 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 23:33:19,459 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 23:33:19,459 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 23:33:19,461 INFO  L87              Difference]: Start difference. First operand 9317 states and 14009 transitions. Second operand  has 4 states, 4 states have (on average 1146.75) internal successors, (4587), 4 states have internal predecessors, (4587), 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)
[2024-11-23 23:33:20,067 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 23:33:20,067 INFO  L93              Difference]: Finished difference Result 17952 states and 26996 transitions.
[2024-11-23 23:33:20,068 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 23:33:20,070 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1146.75) internal successors, (4587), 4 states have internal predecessors, (4587), 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 4587
[2024-11-23 23:33:20,071 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 23:33:20,090 INFO  L225             Difference]: With dead ends: 17952
[2024-11-23 23:33:20,090 INFO  L226             Difference]: Without dead ends: 9317
[2024-11-23 23:33:20,100 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-23 23:33:20,102 INFO  L435           NwaCegarLoop]: 13421 mSDtfsCounter, 13123 mSDsluCounter, 13419 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13123 SdHoareTripleChecker+Valid, 26840 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-23 23:33:20,102 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [13123 Valid, 26840 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-23 23:33:20,117 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9317 states.
[2024-11-23 23:33:20,265 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9317 to 9317.
[2024-11-23 23:33:20,280 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 9317 states, 9316 states have (on average 1.5036496350364963) internal successors, (14008), 9316 states have internal predecessors, (14008), 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)
[2024-11-23 23:33:20,312 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 9317 states to 9317 states and 14008 transitions.
[2024-11-23 23:33:20,312 INFO  L78                 Accepts]: Start accepts. Automaton has 9317 states and 14008 transitions. Word has length 4587
[2024-11-23 23:33:20,314 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 23:33:20,314 INFO  L471      AbstractCegarLoop]: Abstraction has 9317 states and 14008 transitions.
[2024-11-23 23:33:20,316 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1146.75) internal successors, (4587), 4 states have internal predecessors, (4587), 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)
[2024-11-23 23:33:20,316 INFO  L276                IsEmpty]: Start isEmpty. Operand 9317 states and 14008 transitions.