./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.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_8a77fe45-4297-4c4c-b925-2696f2891b31/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/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_8a77fe45-4297-4c4c-b925-2696f2891b31/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/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_8a77fe45-4297-4c4c-b925-2696f2891b31/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 302e0b25ab5e724f956de377dfc80a50b1a465bcb2a4596e79c73f892ebfd861
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 18:32:20,729 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-23 18:32:20,823 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-23 18:32:20,831 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 18:32:20,831 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 18:32:20,863 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 18:32:20,863 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 18:32:20,864 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 18:32:20,864 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-23 18:32:20,864 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-23 18:32:20,865 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 18:32:20,865 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 18:32:20,865 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 18:32:20,865 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-23 18:32:20,866 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-23 18:32:20,866 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 18:32:20,866 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-23 18:32:20,866 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-23 18:32:20,866 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-23 18:32:20,866 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-23 18:32:20,867 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 18:32:20,867 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-23 18:32:20,867 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-23 18:32:20,867 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 18:32:20,867 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-23 18:32:20,867 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-23 18:32:20,867 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-23 18:32:20,867 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:32:20,868 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-23 18:32:20,868 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:32:20,868 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 18:32:20,868 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-23 18:32:20,868 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 18:32:20,868 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-23 18:32:20,868 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:32:20,868 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 18:32:20,869 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 18:32:20,869 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-23 18:32:20,869 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-23 18:32:20,870 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-23 18:32:20,870 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 18:32:20,870 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 18:32:20,870 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-23 18:32:20,870 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-23 18:32:20,870 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-23 18:32:20,870 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_8a77fe45-4297-4c4c-b925-2696f2891b31/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 -> 302e0b25ab5e724f956de377dfc80a50b1a465bcb2a4596e79c73f892ebfd861
[2024-11-23 18:32:21,229 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 18:32:21,246 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 18:32:21,251 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 18:32:21,253 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-23 18:32:21,253 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-23 18:32:21,257 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-func-interl.c
[2024-11-23 18:32:24,749 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/bin/uautomizer-verify-LYvppIcaGC/data/21f130024/00d1b36805604e56bf436970b90be096/FLAGcc6c4513c
[2024-11-23 18:32:25,555 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-23 18:32:25,556 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-func-interl.c
[2024-11-23 18:32:25,601 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/bin/uautomizer-verify-LYvppIcaGC/data/21f130024/00d1b36805604e56bf436970b90be096/FLAGcc6c4513c
[2024-11-23 18:32:25,628 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/bin/uautomizer-verify-LYvppIcaGC/data/21f130024/00d1b36805604e56bf436970b90be096
[2024-11-23 18:32:25,631 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 18:32:25,633 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 18:32:25,636 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 18:32:25,636 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 18:32:25,642 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 18:32:25,643 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:32:25" (1/1) ...
[2024-11-23 18:32:25,645 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75900eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:25, skipping insertion in model container
[2024-11-23 18:32:25,647 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:32:25" (1/1) ...
[2024-11-23 18:32:25,821 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-23 18:32:26,135 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_8a77fe45-4297-4c4c-b925-2696f2891b31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-func-interl.c[1176,1189]
[2024-11-23 18:32:27,328 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:32:27,341 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-23 18:32:27,354 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_8a77fe45-4297-4c4c-b925-2696f2891b31/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.7.prop1-func-interl.c[1176,1189]
[2024-11-23 18:32:28,059 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-23 18:32:28,078 INFO  L204         MainTranslator]: Completed translation
[2024-11-23 18:32:28,079 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28 WrapperNode
[2024-11-23 18:32:28,080 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 18:32:28,081 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 18:32:28,081 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 18:32:28,081 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 18:32:28,094 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:28,346 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:30,604 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22943
[2024-11-23 18:32:30,605 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 18:32:30,606 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 18:32:30,606 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 18:32:30,606 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 18:32:30,618 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:30,618 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:31,390 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:31,723 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 18:32:31,723 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:31,723 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:32,475 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:32,553 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:32,677 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:32,799 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:32,891 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:33,409 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 18:32:33,410 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 18:32:33,410 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 18:32:33,411 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-23 18:32:33,412 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (1/1) ...
[2024-11-23 18:32:33,419 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-23 18:32:33,434 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-23 18:32:33,451 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-23 18:32:33,455 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a77fe45-4297-4c4c-b925-2696f2891b31/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-23 18:32:33,802 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 18:32:33,802 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-23 18:32:33,802 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 18:32:33,802 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 18:32:35,378 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-23 18:32:35,381 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 18:33:42,515 INFO  L?                        ?]: Removed 12943 outVars from TransFormulas that were not future-live.
[2024-11-23 18:33:42,516 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-23 18:33:42,691 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 18:33:42,692 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-23 18:33:42,692 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:33:42 BoogieIcfgContainer
[2024-11-23 18:33:42,694 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 18:33:42,698 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 18:33:42,698 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 18:33:42,706 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-23 18:33:42,706 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:32:25" (1/3) ...
[2024-11-23 18:33:42,707 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d51d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:33:42, skipping insertion in model container
[2024-11-23 18:33:42,707 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:32:28" (2/3) ...
[2024-11-23 18:33:42,707 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d51d43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:33:42, skipping insertion in model container
[2024-11-23 18:33:42,708 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:33:42" (3/3) ...
[2024-11-23 18:33:42,710 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.7.prop1-func-interl.c
[2024-11-23 18:33:42,731 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 18:33:42,733 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.7.prop1-func-interl.c that has 1 procedures, 8102 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-23 18:33:43,006 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-23 18:33:43,026 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;@556577d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 18:33:43,027 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-23 18:33:43,061 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8102 states, 8100 states have (on average 1.504320987654321) internal successors, (12185), 8101 states have internal predecessors, (12185), 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 18:33:43,099 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2024-11-23 18:33:43,102 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 18:33:43,103 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]
[2024-11-23 18:33:43,104 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:33:43,113 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:33:43,113 INFO  L85        PathProgramCache]: Analyzing trace with hash -2145768534, now seen corresponding path program 1 times
[2024-11-23 18:33:43,123 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:33:43,124 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394342938]
[2024-11-23 18:33:43,124 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:33:43,125 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:33:43,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:33:46,181 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 18:33:46,184 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:33:46,185 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394342938]
[2024-11-23 18:33:46,186 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394342938] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:33:46,188 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:33:46,189 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 18:33:46,190 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58033410]
[2024-11-23 18:33:46,192 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:33:46,200 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 18:33:46,201 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:33:46,231 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 18:33:46,231 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 18:33:46,251 INFO  L87              Difference]: Start difference. First operand  has 8102 states, 8100 states have (on average 1.504320987654321) internal successors, (12185), 8101 states have internal predecessors, (12185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 5 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 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 18:33:57,976 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:33:57,976 INFO  L93              Difference]: Finished difference Result 23668 states and 35605 transitions.
[2024-11-23 18:33:57,977 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-23 18:33:57,978 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 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 325
[2024-11-23 18:33:57,980 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:33:58,056 INFO  L225             Difference]: With dead ends: 23668
[2024-11-23 18:33:58,056 INFO  L226             Difference]: Without dead ends: 15876
[2024-11-23 18:33:58,071 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-23 18:33:58,074 INFO  L435           NwaCegarLoop]: 9800 mSDtfsCounter, 11846 mSDsluCounter, 29177 mSDsCounter, 0 mSdLazyCounter, 9284 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11846 SdHoareTripleChecker+Valid, 38977 SdHoareTripleChecker+Invalid, 9285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time
[2024-11-23 18:33:58,075 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11846 Valid, 38977 Invalid, 9285 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 9284 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time]
[2024-11-23 18:33:58,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15876 states.
[2024-11-23 18:33:58,480 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15876 to 8422.
[2024-11-23 18:33:58,500 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8422 states, 8421 states have (on average 1.5038593991212446) internal successors, (12664), 8421 states have internal predecessors, (12664), 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 18:33:58,552 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8422 states to 8422 states and 12664 transitions.
[2024-11-23 18:33:58,554 INFO  L78                 Accepts]: Start accepts. Automaton has 8422 states and 12664 transitions. Word has length 325
[2024-11-23 18:33:58,562 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:33:58,562 INFO  L471      AbstractCegarLoop]: Abstraction has 8422 states and 12664 transitions.
[2024-11-23 18:33:58,562 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 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 18:33:58,562 INFO  L276                IsEmpty]: Start isEmpty. Operand 8422 states and 12664 transitions.
[2024-11-23 18:33:58,574 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 328
[2024-11-23 18:33:58,576 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 18:33:58,576 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]
[2024-11-23 18:33:58,577 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-23 18:33:58,577 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:33:58,578 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:33:58,578 INFO  L85        PathProgramCache]: Analyzing trace with hash 1073836967, now seen corresponding path program 1 times
[2024-11-23 18:33:58,578 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:33:58,579 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545606134]
[2024-11-23 18:33:58,579 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:33:58,580 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:33:58,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:34:00,063 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 18:34:00,066 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:34:00,066 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545606134]
[2024-11-23 18:34:00,067 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545606134] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:34:00,067 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:34:00,067 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 18:34:00,067 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724099395]
[2024-11-23 18:34:00,067 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:34:00,069 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 18:34:00,069 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:34:00,070 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 18:34:00,071 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 18:34:00,071 INFO  L87              Difference]: Start difference. First operand 8422 states and 12664 transitions. Second operand  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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 18:34:00,273 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:34:00,274 INFO  L93              Difference]: Finished difference Result 8426 states and 12668 transitions.
[2024-11-23 18:34:00,274 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 18:34:00,275 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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 327
[2024-11-23 18:34:00,277 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:34:00,307 INFO  L225             Difference]: With dead ends: 8426
[2024-11-23 18:34:00,307 INFO  L226             Difference]: Without dead ends: 8424
[2024-11-23 18:34:00,311 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 18:34:00,313 INFO  L435           NwaCegarLoop]: 12179 mSDtfsCounter, 0 mSDsluCounter, 24352 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36531 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-23 18:34:00,315 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36531 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-23 18:34:00,333 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8424 states.
[2024-11-23 18:34:00,487 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8424 to 8424.
[2024-11-23 18:34:00,506 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8424 states, 8423 states have (on average 1.5037397601804583) internal successors, (12666), 8423 states have internal predecessors, (12666), 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 18:34:00,537 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8424 states to 8424 states and 12666 transitions.
[2024-11-23 18:34:00,537 INFO  L78                 Accepts]: Start accepts. Automaton has 8424 states and 12666 transitions. Word has length 327
[2024-11-23 18:34:00,539 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:34:00,539 INFO  L471      AbstractCegarLoop]: Abstraction has 8424 states and 12666 transitions.
[2024-11-23 18:34:00,540 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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 18:34:00,540 INFO  L276                IsEmpty]: Start isEmpty. Operand 8424 states and 12666 transitions.
[2024-11-23 18:34:00,546 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 329
[2024-11-23 18:34:00,546 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 18:34:00,547 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]
[2024-11-23 18:34:00,547 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-23 18:34:00,547 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:34:00,552 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:34:00,552 INFO  L85        PathProgramCache]: Analyzing trace with hash -1069095158, now seen corresponding path program 1 times
[2024-11-23 18:34:00,552 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:34:00,552 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633502912]
[2024-11-23 18:34:00,553 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:34:00,553 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:34:00,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:34:01,457 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 18:34:01,457 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:34:01,457 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633502912]
[2024-11-23 18:34:01,458 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633502912] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:34:01,458 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:34:01,458 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 18:34:01,459 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575096228]
[2024-11-23 18:34:01,459 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:34:01,460 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 18:34:01,460 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:34:01,461 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 18:34:01,462 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 18:34:01,465 INFO  L87              Difference]: Start difference. First operand 8424 states and 12666 transitions. Second operand  has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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 18:34:01,732 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:34:01,732 INFO  L93              Difference]: Finished difference Result 16217 states and 24388 transitions.
[2024-11-23 18:34:01,733 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 18:34:01,734 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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 328
[2024-11-23 18:34:01,735 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:34:01,777 INFO  L225             Difference]: With dead ends: 16217
[2024-11-23 18:34:01,778 INFO  L226             Difference]: Without dead ends: 8426
[2024-11-23 18:34:01,788 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 18:34:01,792 INFO  L435           NwaCegarLoop]: 12179 mSDtfsCounter, 0 mSDsluCounter, 24348 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36527 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 18:34:01,795 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36527 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 18:34:01,811 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8426 states.
[2024-11-23 18:34:01,956 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8426 to 8426.
[2024-11-23 18:34:01,969 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8426 states, 8425 states have (on average 1.503620178041543) internal successors, (12668), 8425 states have internal predecessors, (12668), 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 18:34:01,988 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8426 states to 8426 states and 12668 transitions.
[2024-11-23 18:34:01,992 INFO  L78                 Accepts]: Start accepts. Automaton has 8426 states and 12668 transitions. Word has length 328
[2024-11-23 18:34:01,993 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:34:01,993 INFO  L471      AbstractCegarLoop]: Abstraction has 8426 states and 12668 transitions.
[2024-11-23 18:34:01,993 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 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 18:34:01,993 INFO  L276                IsEmpty]: Start isEmpty. Operand 8426 states and 12668 transitions.
[2024-11-23 18:34:02,003 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 330
[2024-11-23 18:34:02,004 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 18:34:02,005 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]
[2024-11-23 18:34:02,005 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-23 18:34:02,005 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:34:02,006 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:34:02,006 INFO  L85        PathProgramCache]: Analyzing trace with hash 119824608, now seen corresponding path program 1 times
[2024-11-23 18:34:02,006 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:34:02,007 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981998008]
[2024-11-23 18:34:02,007 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:34:02,007 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:34:02,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:34:03,068 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 18:34:03,070 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:34:03,070 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981998008]
[2024-11-23 18:34:03,070 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981998008] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:34:03,071 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:34:03,071 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-23 18:34:03,071 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169439005]
[2024-11-23 18:34:03,072 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:34:03,072 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 18:34:03,072 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:34:03,073 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 18:34:03,073 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-23 18:34:03,074 INFO  L87              Difference]: Start difference. First operand 8426 states and 12668 transitions. Second operand  has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 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 18:34:03,506 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:34:03,506 INFO  L93              Difference]: Finished difference Result 22419 states and 33722 transitions.
[2024-11-23 18:34:03,507 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-23 18:34:03,507 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 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 329
[2024-11-23 18:34:03,508 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:34:03,545 INFO  L225             Difference]: With dead ends: 22419
[2024-11-23 18:34:03,545 INFO  L226             Difference]: Without dead ends: 14626
[2024-11-23 18:34:03,560 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 18:34:03,561 INFO  L435           NwaCegarLoop]: 12175 mSDtfsCounter, 9962 mSDsluCounter, 36056 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9962 SdHoareTripleChecker+Valid, 48231 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 18:34:03,562 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [9962 Valid, 48231 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-23 18:34:03,594 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14626 states.
[2024-11-23 18:34:03,855 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14626 to 8429.
[2024-11-23 18:34:03,871 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8429 states, 8428 states have (on average 1.5034409112482203) internal successors, (12671), 8428 states have internal predecessors, (12671), 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 18:34:03,901 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8429 states to 8429 states and 12671 transitions.
[2024-11-23 18:34:03,902 INFO  L78                 Accepts]: Start accepts. Automaton has 8429 states and 12671 transitions. Word has length 329
[2024-11-23 18:34:03,904 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:34:03,905 INFO  L471      AbstractCegarLoop]: Abstraction has 8429 states and 12671 transitions.
[2024-11-23 18:34:03,905 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 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 18:34:03,905 INFO  L276                IsEmpty]: Start isEmpty. Operand 8429 states and 12671 transitions.
[2024-11-23 18:34:04,365 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4149
[2024-11-23 18:34:04,366 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 18:34:04,370 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:34:04,370 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-23 18:34:04,371 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:34:04,373 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:34:04,378 INFO  L85        PathProgramCache]: Analyzing trace with hash 553030559, now seen corresponding path program 1 times
[2024-11-23 18:34:04,378 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:34:04,378 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545890994]
[2024-11-23 18:34:04,380 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:34:04,381 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:34:18,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:34:34,316 INFO  L134       CoverageAnalysis]: Checked inductivity of 168 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 18:34:34,317 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:34:34,318 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545890994]
[2024-11-23 18:34:34,318 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545890994] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:34:34,318 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:34:34,319 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 18:34:34,319 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701050257]
[2024-11-23 18:34:34,319 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:34:34,326 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 18:34:34,327 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:34:34,333 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 18:34:34,333 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 18:34:34,335 INFO  L87              Difference]: Start difference. First operand 8429 states and 12671 transitions. Second operand  has 4 states, 4 states have (on average 1037.0) internal successors, (4148), 4 states have internal predecessors, (4148), 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 18:34:35,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:34:35,017 INFO  L93              Difference]: Finished difference Result 16222 states and 24392 transitions.
[2024-11-23 18:34:35,017 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 18:34:35,018 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1037.0) internal successors, (4148), 4 states have internal predecessors, (4148), 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 4148
[2024-11-23 18:34:35,019 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:34:35,039 INFO  L225             Difference]: With dead ends: 16222
[2024-11-23 18:34:35,039 INFO  L226             Difference]: Without dead ends: 8429
[2024-11-23 18:34:35,050 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 18:34:35,051 INFO  L435           NwaCegarLoop]: 12145 mSDtfsCounter, 11857 mSDsluCounter, 12143 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11857 SdHoareTripleChecker+Valid, 24288 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-23 18:34:35,051 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11857 Valid, 24288 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-23 18:34:35,065 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8429 states.
[2024-11-23 18:34:35,195 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8429 to 8429.
[2024-11-23 18:34:35,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8429 states, 8428 states have (on average 1.5033222591362125) internal successors, (12670), 8428 states have internal predecessors, (12670), 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 18:34:35,221 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8429 states to 8429 states and 12670 transitions.
[2024-11-23 18:34:35,222 INFO  L78                 Accepts]: Start accepts. Automaton has 8429 states and 12670 transitions. Word has length 4148
[2024-11-23 18:34:35,223 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:34:35,223 INFO  L471      AbstractCegarLoop]: Abstraction has 8429 states and 12670 transitions.
[2024-11-23 18:34:35,225 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1037.0) internal successors, (4148), 4 states have internal predecessors, (4148), 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 18:34:35,225 INFO  L276                IsEmpty]: Start isEmpty. Operand 8429 states and 12670 transitions.
[2024-11-23 18:34:35,774 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4150
[2024-11-23 18:34:35,774 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 18:34:35,777 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:34:35,778 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-23 18:34:35,778 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:34:35,780 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:34:35,783 INFO  L85        PathProgramCache]: Analyzing trace with hash -205449475, now seen corresponding path program 1 times
[2024-11-23 18:34:35,784 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:34:35,784 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562713915]
[2024-11-23 18:34:35,786 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:34:35,786 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:34:43,722 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:34:53,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 168 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 18:34:53,247 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:34:53,247 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562713915]
[2024-11-23 18:34:53,247 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562713915] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:34:53,247 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:34:53,248 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 18:34:53,248 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824141462]
[2024-11-23 18:34:53,248 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:34:53,253 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 18:34:53,253 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:34:53,257 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 18:34:53,257 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 18:34:53,260 INFO  L87              Difference]: Start difference. First operand 8429 states and 12670 transitions. Second operand  has 4 states, 4 states have (on average 1037.25) internal successors, (4149), 4 states have internal predecessors, (4149), 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 18:34:53,665 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:34:53,666 INFO  L93              Difference]: Finished difference Result 16222 states and 24390 transitions.
[2024-11-23 18:34:53,669 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 18:34:53,671 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1037.25) internal successors, (4149), 4 states have internal predecessors, (4149), 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 4149
[2024-11-23 18:34:53,672 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:34:53,692 INFO  L225             Difference]: With dead ends: 16222
[2024-11-23 18:34:53,692 INFO  L226             Difference]: Without dead ends: 8429
[2024-11-23 18:34:53,700 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 18:34:53,701 INFO  L435           NwaCegarLoop]: 12144 mSDtfsCounter, 11839 mSDsluCounter, 12142 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11839 SdHoareTripleChecker+Valid, 24286 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-23 18:34:53,701 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11839 Valid, 24286 Invalid, 69 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-23 18:34:53,714 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8429 states.
[2024-11-23 18:34:53,827 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8429 to 8429.
[2024-11-23 18:34:53,840 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8429 states, 8428 states have (on average 1.503203607024205) internal successors, (12669), 8428 states have internal predecessors, (12669), 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 18:34:53,854 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8429 states to 8429 states and 12669 transitions.
[2024-11-23 18:34:53,854 INFO  L78                 Accepts]: Start accepts. Automaton has 8429 states and 12669 transitions. Word has length 4149
[2024-11-23 18:34:53,855 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:34:53,856 INFO  L471      AbstractCegarLoop]: Abstraction has 8429 states and 12669 transitions.
[2024-11-23 18:34:53,857 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1037.25) internal successors, (4149), 4 states have internal predecessors, (4149), 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 18:34:53,857 INFO  L276                IsEmpty]: Start isEmpty. Operand 8429 states and 12669 transitions.
[2024-11-23 18:34:54,004 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4151
[2024-11-23 18:34:54,004 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 18:34:54,007 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-23 18:34:54,007 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-23 18:34:54,007 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:34:54,009 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:34:54,012 INFO  L85        PathProgramCache]: Analyzing trace with hash 941827100, now seen corresponding path program 1 times
[2024-11-23 18:34:54,013 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:34:54,013 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838052692]
[2024-11-23 18:34:54,015 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:34:54,015 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-23 18:35:01,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 18:35:10,630 INFO  L134       CoverageAnalysis]: Checked inductivity of 168 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 18:35:10,631 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-23 18:35:10,631 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838052692]
[2024-11-23 18:35:10,631 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838052692] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 18:35:10,631 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 18:35:10,632 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 18:35:10,632 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507655254]
[2024-11-23 18:35:10,632 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 18:35:10,636 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 18:35:10,636 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-23 18:35:10,640 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 18:35:10,641 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 18:35:10,643 INFO  L87              Difference]: Start difference. First operand 8429 states and 12669 transitions. Second operand  has 4 states, 4 states have (on average 1037.5) internal successors, (4150), 4 states have internal predecessors, (4150), 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 18:35:11,043 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-23 18:35:11,043 INFO  L93              Difference]: Finished difference Result 16222 states and 24388 transitions.
[2024-11-23 18:35:11,044 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-23 18:35:11,045 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1037.5) internal successors, (4150), 4 states have internal predecessors, (4150), 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 4150
[2024-11-23 18:35:11,045 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-23 18:35:11,066 INFO  L225             Difference]: With dead ends: 16222
[2024-11-23 18:35:11,066 INFO  L226             Difference]: Without dead ends: 8429
[2024-11-23 18:35:11,074 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 18:35:11,076 INFO  L435           NwaCegarLoop]: 12143 mSDtfsCounter, 11821 mSDsluCounter, 12141 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11821 SdHoareTripleChecker+Valid, 24284 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-23 18:35:11,076 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11821 Valid, 24284 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-23 18:35:11,090 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8429 states.
[2024-11-23 18:35:11,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8429 to 8429.
[2024-11-23 18:35:11,209 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8429 states, 8428 states have (on average 1.5030849549121974) internal successors, (12668), 8428 states have internal predecessors, (12668), 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 18:35:11,223 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8429 states to 8429 states and 12668 transitions.
[2024-11-23 18:35:11,223 INFO  L78                 Accepts]: Start accepts. Automaton has 8429 states and 12668 transitions. Word has length 4150
[2024-11-23 18:35:11,225 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-23 18:35:11,225 INFO  L471      AbstractCegarLoop]: Abstraction has 8429 states and 12668 transitions.
[2024-11-23 18:35:11,226 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1037.5) internal successors, (4150), 4 states have internal predecessors, (4150), 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 18:35:11,227 INFO  L276                IsEmpty]: Start isEmpty. Operand 8429 states and 12668 transitions.
[2024-11-23 18:35:11,378 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4152
[2024-11-23 18:35:11,378 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-23 18:35:11,381 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:35:11,381 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-23 18:35:11,381 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-23 18:35:11,383 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 18:35:11,386 INFO  L85        PathProgramCache]: Analyzing trace with hash -894305894, now seen corresponding path program 1 times
[2024-11-23 18:35:11,386 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-23 18:35:11,386 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005962292]
[2024-11-23 18:35:11,389 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 18:35:11,390 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms