./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.6.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.6.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e77897bf0c0355da39ab9d60964373b1d092435579efbe2948ef80a499f9d265
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 15:18:33,712 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-12-02 15:18:33,767 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-02 15:18:33,772 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 15:18:33,772 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 15:18:33,793 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 15:18:33,794 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 15:18:33,794 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 15:18:33,794 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 15:18:33,794 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-12-02 15:18:33,795 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 15:18:33,795 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 15:18:33,795 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 15:18:33,795 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-12-02 15:18:33,795 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-12-02 15:18:33,795 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 15:18:33,796 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-12-02 15:18:33,796 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-12-02 15:18:33,796 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-12-02 15:18:33,796 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 15:18:33,796 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 15:18:33,796 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 15:18:33,796 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-12-02 15:18:33,796 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 15:18:33,796 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-12-02 15:18:33,796 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 15:18:33,796 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 15:18:33,797 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 15:18:33,797 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 15:18:33,797 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:18:33,797 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 15:18:33,797 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 15:18:33,797 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 15:18:33,797 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 15:18:33,797 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:18:33,797 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 15:18:33,797 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 15:18:33,798 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-12-02 15:18:33,798 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 15:18:33,798 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-12-02 15:18:33,798 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 15:18:33,798 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 15:18:33,798 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 15:18:33,798 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 15:18:33,798 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 15:18:33,798 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_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e77897bf0c0355da39ab9d60964373b1d092435579efbe2948ef80a499f9d265
[2024-12-02 15:18:34,008 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 15:18:34,015 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 15:18:34,017 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 15:18:34,018 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-12-02 15:18:34,018 INFO  L274        PluginConnector]: CDTParser initialized
[2024-12-02 15:18:34,019 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.6.prop1-func-interl.c
[2024-12-02 15:18:36,611 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/data/bccde309c/3aa52f8d6066460a8ea43fcf2e8d5fd2/FLAG37d9336ae
[2024-12-02 15:18:37,061 INFO  L384              CDTParser]: Found 1 translation units.
[2024-12-02 15:18:37,062 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.6.prop1-func-interl.c
[2024-12-02 15:18:37,086 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/data/bccde309c/3aa52f8d6066460a8ea43fcf2e8d5fd2/FLAG37d9336ae
[2024-12-02 15:18:37,101 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/data/bccde309c/3aa52f8d6066460a8ea43fcf2e8d5fd2
[2024-12-02 15:18:37,103 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 15:18:37,105 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 15:18:37,106 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 15:18:37,106 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 15:18:37,111 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 15:18:37,111 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:18:37" (1/1) ...
[2024-12-02 15:18:37,113 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550d3d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:37, skipping insertion in model container
[2024-12-02 15:18:37,113 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:18:37" (1/1) ...
[2024-12-02 15:18:37,197 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-12-02 15:18:37,404 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_5ca7a3d7-a335-4379-a73e-34efa132dcbe/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.6.prop1-func-interl.c[1176,1189]
[2024-12-02 15:18:38,008 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 15:18:38,015 INFO  L200         MainTranslator]: Completed pre-run
[2024-12-02 15:18:38,023 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_5ca7a3d7-a335-4379-a73e-34efa132dcbe/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.6.prop1-func-interl.c[1176,1189]
[2024-12-02 15:18:38,404 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 15:18:38,414 INFO  L204         MainTranslator]: Completed translation
[2024-12-02 15:18:38,415 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38 WrapperNode
[2024-12-02 15:18:38,415 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 15:18:38,416 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 15:18:38,416 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 15:18:38,416 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 15:18:38,421 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:38,525 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:40,098 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24335
[2024-12-02 15:18:40,099 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 15:18:40,099 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 15:18:40,100 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 15:18:40,100 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 15:18:40,107 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:40,107 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:40,437 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:40,776 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-02 15:18:40,777 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:40,777 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:41,169 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:41,203 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:41,271 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:41,330 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:41,386 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:41,746 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 15:18:41,747 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 15:18:41,747 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 15:18:41,747 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-12-02 15:18:41,748 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (1/1) ...
[2024-12-02 15:18:41,753 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:18:41,764 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 15:18:41,774 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 15:18:41,913 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ca7a3d7-a335-4379-a73e-34efa132dcbe/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 15:18:41,931 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 15:18:41,931 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 15:18:41,931 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 15:18:41,931 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 15:18:42,945 INFO  L234             CfgBuilder]: Building ICFG
[2024-12-02 15:18:42,946 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 15:19:44,265 INFO  L?                        ?]: Removed 13743 outVars from TransFormulas that were not future-live.
[2024-12-02 15:19:44,266 INFO  L283             CfgBuilder]: Performing block encoding
[2024-12-02 15:19:44,357 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 15:19:44,358 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 15:19:44,358 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:19:44 BoogieIcfgContainer
[2024-12-02 15:19:44,358 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 15:19:44,360 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 15:19:44,360 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 15:19:44,365 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-12-02 15:19:44,365 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:18:37" (1/3) ...
[2024-12-02 15:19:44,366 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57933a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:19:44, skipping insertion in model container
[2024-12-02 15:19:44,366 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:18:38" (2/3) ...
[2024-12-02 15:19:44,366 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57933a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:19:44, skipping insertion in model container
[2024-12-02 15:19:44,366 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:19:44" (3/3) ...
[2024-12-02 15:19:44,368 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.6.prop1-func-interl.c
[2024-12-02 15:19:44,383 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 15:19:44,385 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.telephony.6.prop1-func-interl.c that has 1 procedures, 8582 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 15:19:44,570 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 15:19:44,581 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;@7fba1d4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 15:19:44,582 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 15:19:44,605 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 8582 states, 8580 states have (on average 1.504079254079254) internal successors, (12905), 8581 states have internal predecessors, (12905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:44,622 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 334
[2024-12-02 15:19:44,622 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:19:44,623 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]
[2024-12-02 15:19:44,623 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:19:44,627 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:19:44,627 INFO  L85        PathProgramCache]: Analyzing trace with hash 1285431186, now seen corresponding path program 1 times
[2024-12-02 15:19:44,632 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:19:44,632 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586529870]
[2024-12-02 15:19:44,633 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:19:44,633 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:19:45,013 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:19:46,521 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:19:46,522 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:19:46,523 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586529870]
[2024-12-02 15:19:46,525 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586529870] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:19:46,526 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:19:46,526 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:19:46,527 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85622411]
[2024-12-02 15:19:46,528 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:19:46,534 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:19:46,534 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:19:46,556 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:19:46,557 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:19:46,574 INFO  L87              Difference]: Start difference. First operand  has 8582 states, 8580 states have (on average 1.504079254079254) internal successors, (12905), 8581 states have internal predecessors, (12905), 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 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:47,081 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:19:47,081 INFO  L93              Difference]: Finished difference Result 16853 states and 25347 transitions.
[2024-12-02 15:19:47,082 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:19:47,084 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 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 333
[2024-12-02 15:19:47,088 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:19:47,148 INFO  L225             Difference]: With dead ends: 16853
[2024-12-02 15:19:47,148 INFO  L226             Difference]: Without dead ends: 8581
[2024-12-02 15:19:47,170 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:19:47,173 INFO  L435           NwaCegarLoop]: 12899 mSDtfsCounter, 0 mSDsluCounter, 25792 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38691 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:19:47,176 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38691 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:19:47,210 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8581 states.
[2024-12-02 15:19:47,482 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8581 to 8581.
[2024-12-02 15:19:47,505 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8581 states, 8580 states have (on average 1.5038461538461538) internal successors, (12903), 8580 states have internal predecessors, (12903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:47,556 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8581 states to 8581 states and 12903 transitions.
[2024-12-02 15:19:47,560 INFO  L78                 Accepts]: Start accepts. Automaton has 8581 states and 12903 transitions. Word has length 333
[2024-12-02 15:19:47,562 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:19:47,563 INFO  L471      AbstractCegarLoop]: Abstraction has 8581 states and 12903 transitions.
[2024-12-02 15:19:47,564 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 83.25) internal successors, (333), 4 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:47,564 INFO  L276                IsEmpty]: Start isEmpty. Operand 8581 states and 12903 transitions.
[2024-12-02 15:19:47,573 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 335
[2024-12-02 15:19:47,573 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:19:47,574 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]
[2024-12-02 15:19:47,574 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 15:19:47,574 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:19:47,575 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:19:47,576 INFO  L85        PathProgramCache]: Analyzing trace with hash 1195358387, now seen corresponding path program 1 times
[2024-12-02 15:19:47,576 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:19:47,576 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378727021]
[2024-12-02 15:19:47,576 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:19:47,577 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:19:47,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:19:48,354 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:19:48,354 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:19:48,354 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378727021]
[2024-12-02 15:19:48,355 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378727021] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:19:48,355 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:19:48,355 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:19:48,355 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581003179]
[2024-12-02 15:19:48,355 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:19:48,357 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:19:48,357 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:19:48,357 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:19:48,357 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:19:48,358 INFO  L87              Difference]: Start difference. First operand 8581 states and 12903 transitions. Second operand  has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:48,631 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:19:48,631 INFO  L93              Difference]: Finished difference Result 16854 states and 25345 transitions.
[2024-12-02 15:19:48,632 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:19:48,632 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 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 334
[2024-12-02 15:19:48,633 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:19:48,660 INFO  L225             Difference]: With dead ends: 16854
[2024-12-02 15:19:48,660 INFO  L226             Difference]: Without dead ends: 8583
[2024-12-02 15:19:48,669 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:19:48,669 INFO  L435           NwaCegarLoop]: 12899 mSDtfsCounter, 0 mSDsluCounter, 25788 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38687 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:19:48,670 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38687 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:19:48,683 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8583 states.
[2024-12-02 15:19:48,808 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8583 to 8583.
[2024-12-02 15:19:48,819 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8583 states, 8582 states have (on average 1.5037287345607084) internal successors, (12905), 8582 states have internal predecessors, (12905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:48,844 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8583 states to 8583 states and 12905 transitions.
[2024-12-02 15:19:48,845 INFO  L78                 Accepts]: Start accepts. Automaton has 8583 states and 12905 transitions. Word has length 334
[2024-12-02 15:19:48,845 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:19:48,846 INFO  L471      AbstractCegarLoop]: Abstraction has 8583 states and 12905 transitions.
[2024-12-02 15:19:48,846 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 83.5) internal successors, (334), 4 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:48,847 INFO  L276                IsEmpty]: Start isEmpty. Operand 8583 states and 12905 transitions.
[2024-12-02 15:19:48,852 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 336
[2024-12-02 15:19:48,852 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:19:48,852 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]
[2024-12-02 15:19:48,852 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 15:19:48,852 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:19:48,853 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:19:48,853 INFO  L85        PathProgramCache]: Analyzing trace with hash 1598407819, now seen corresponding path program 1 times
[2024-12-02 15:19:48,853 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:19:48,853 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668228843]
[2024-12-02 15:19:48,853 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:19:48,853 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:19:48,992 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:19:49,564 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:19:49,564 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:19:49,564 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668228843]
[2024-12-02 15:19:49,564 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668228843] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:19:49,564 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:19:49,564 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:19:49,564 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016218272]
[2024-12-02 15:19:49,565 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:19:49,565 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:19:49,565 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:19:49,566 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:19:49,566 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:19:49,566 INFO  L87              Difference]: Start difference. First operand 8583 states and 12905 transitions. Second operand  has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:49,983 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:19:49,983 INFO  L93              Difference]: Finished difference Result 23859 states and 35884 transitions.
[2024-12-02 15:19:49,983 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:19:49,983 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 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 335
[2024-12-02 15:19:49,984 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:19:50,029 INFO  L225             Difference]: With dead ends: 23859
[2024-12-02 15:19:50,029 INFO  L226             Difference]: Without dead ends: 15586
[2024-12-02 15:19:50,040 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 15:19:50,041 INFO  L435           NwaCegarLoop]: 12895 mSDtfsCounter, 10680 mSDsluCounter, 38216 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10680 SdHoareTripleChecker+Valid, 51111 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
[2024-12-02 15:19:50,041 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10680 Valid, 51111 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:19:50,061 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15586 states.
[2024-12-02 15:19:50,232 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15586 to 8925.
[2024-12-02 15:19:50,243 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8925 states, 8924 states have (on average 1.5034737785746302) internal successors, (13417), 8924 states have internal predecessors, (13417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:50,254 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8925 states to 8925 states and 13417 transitions.
[2024-12-02 15:19:50,255 INFO  L78                 Accepts]: Start accepts. Automaton has 8925 states and 13417 transitions. Word has length 335
[2024-12-02 15:19:50,255 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:19:50,255 INFO  L471      AbstractCegarLoop]: Abstraction has 8925 states and 13417 transitions.
[2024-12-02 15:19:50,255 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:19:50,256 INFO  L276                IsEmpty]: Start isEmpty. Operand 8925 states and 13417 transitions.
[2024-12-02 15:19:50,517 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4395
[2024-12-02 15:19:50,517 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:19:50,519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-12-02 15:19:50,519 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 15:19:50,519 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:19:50,521 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:19:50,523 INFO  L85        PathProgramCache]: Analyzing trace with hash -1089452161, now seen corresponding path program 1 times
[2024-12-02 15:19:50,523 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:19:50,523 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624398403]
[2024-12-02 15:19:50,524 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:19:50,524 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:19:56,560 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:20:05,693 INFO  L134       CoverageAnalysis]: Checked inductivity of 176 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:20:05,694 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:20:05,694 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624398403]
[2024-12-02 15:20:05,694 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624398403] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:20:05,694 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:20:05,695 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:20:05,695 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828870614]
[2024-12-02 15:20:05,695 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:20:05,699 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:20:05,700 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:20:05,703 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:20:05,704 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:20:05,705 INFO  L87              Difference]: Start difference. First operand 8925 states and 13417 transitions. Second operand  has 4 states, 4 states have (on average 1098.5) internal successors, (4394), 4 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:06,275 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:20:06,275 INFO  L93              Difference]: Finished difference Result 17198 states and 25858 transitions.
[2024-12-02 15:20:06,276 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:20:06,277 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1098.5) internal successors, (4394), 4 states have internal predecessors, (4394), 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 4394
[2024-12-02 15:20:06,278 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:20:06,297 INFO  L225             Difference]: With dead ends: 17198
[2024-12-02 15:20:06,297 INFO  L226             Difference]: Without dead ends: 8925
[2024-12-02 15:20:06,307 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
[2024-12-02 15:20:06,309 INFO  L435           NwaCegarLoop]: 12859 mSDtfsCounter, 12571 mSDsluCounter, 12857 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12571 SdHoareTripleChecker+Valid, 25716 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 15:20:06,311 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12571 Valid, 25716 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 15:20:06,331 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8925 states.
[2024-12-02 15:20:06,461 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8925 to 8925.
[2024-12-02 15:20:06,473 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8925 states, 8924 states have (on average 1.503361721201255) internal successors, (13416), 8924 states have internal predecessors, (13416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:06,496 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8925 states to 8925 states and 13416 transitions.
[2024-12-02 15:20:06,496 INFO  L78                 Accepts]: Start accepts. Automaton has 8925 states and 13416 transitions. Word has length 4394
[2024-12-02 15:20:06,498 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:20:06,498 INFO  L471      AbstractCegarLoop]: Abstraction has 8925 states and 13416 transitions.
[2024-12-02 15:20:06,500 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1098.5) internal successors, (4394), 4 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:06,500 INFO  L276                IsEmpty]: Start isEmpty. Operand 8925 states and 13416 transitions.
[2024-12-02 15:20:06,858 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4396
[2024-12-02 15:20:06,858 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:20:06,861 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-12-02 15:20:06,861 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 15:20:06,861 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:20:06,863 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:20:06,866 INFO  L85        PathProgramCache]: Analyzing trace with hash 2128605663, now seen corresponding path program 1 times
[2024-12-02 15:20:06,866 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:20:06,866 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245998241]
[2024-12-02 15:20:06,868 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:20:06,868 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:20:12,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:20:19,659 INFO  L134       CoverageAnalysis]: Checked inductivity of 176 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:20:19,659 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:20:19,659 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245998241]
[2024-12-02 15:20:19,660 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245998241] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:20:19,660 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:20:19,660 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:20:19,660 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181125124]
[2024-12-02 15:20:19,660 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:20:19,664 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:20:19,664 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:20:19,667 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:20:19,668 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:20:19,669 INFO  L87              Difference]: Start difference. First operand 8925 states and 13416 transitions. Second operand  has 4 states, 4 states have (on average 1098.75) internal successors, (4395), 4 states have internal predecessors, (4395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:20,041 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:20:20,041 INFO  L93              Difference]: Finished difference Result 17198 states and 25856 transitions.
[2024-12-02 15:20:20,041 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:20:20,043 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1098.75) internal successors, (4395), 4 states have internal predecessors, (4395), 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 4395
[2024-12-02 15:20:20,044 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:20:20,061 INFO  L225             Difference]: With dead ends: 17198
[2024-12-02 15:20:20,061 INFO  L226             Difference]: Without dead ends: 8925
[2024-12-02 15:20:20,068 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
[2024-12-02 15:20:20,069 INFO  L435           NwaCegarLoop]: 12858 mSDtfsCounter, 12553 mSDsluCounter, 12856 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12553 SdHoareTripleChecker+Valid, 25714 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 15:20:20,069 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12553 Valid, 25714 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 15:20:20,081 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8925 states.
[2024-12-02 15:20:20,171 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8925 to 8925.
[2024-12-02 15:20:20,184 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8925 states, 8924 states have (on average 1.5032496638278798) internal successors, (13415), 8924 states have internal predecessors, (13415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:20,196 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8925 states to 8925 states and 13415 transitions.
[2024-12-02 15:20:20,196 INFO  L78                 Accepts]: Start accepts. Automaton has 8925 states and 13415 transitions. Word has length 4395
[2024-12-02 15:20:20,197 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:20:20,197 INFO  L471      AbstractCegarLoop]: Abstraction has 8925 states and 13415 transitions.
[2024-12-02 15:20:20,199 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1098.75) internal successors, (4395), 4 states have internal predecessors, (4395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:20,199 INFO  L276                IsEmpty]: Start isEmpty. Operand 8925 states and 13415 transitions.
[2024-12-02 15:20:20,377 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4397
[2024-12-02 15:20:20,377 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:20:20,378 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-12-02 15:20:20,378 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 15:20:20,379 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:20:20,380 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:20:20,381 INFO  L85        PathProgramCache]: Analyzing trace with hash 1155740220, now seen corresponding path program 1 times
[2024-12-02 15:20:20,381 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:20:20,381 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752945797]
[2024-12-02 15:20:20,382 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:20:20,382 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:20:24,903 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:20:32,261 INFO  L134       CoverageAnalysis]: Checked inductivity of 176 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:20:32,262 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:20:32,262 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752945797]
[2024-12-02 15:20:32,262 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752945797] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:20:32,262 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:20:32,262 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:20:32,263 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916091261]
[2024-12-02 15:20:32,263 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:20:32,266 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:20:32,266 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:20:32,269 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:20:32,269 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:20:32,271 INFO  L87              Difference]: Start difference. First operand 8925 states and 13415 transitions. Second operand  has 4 states, 4 states have (on average 1099.0) internal successors, (4396), 4 states have internal predecessors, (4396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:32,565 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:20:32,565 INFO  L93              Difference]: Finished difference Result 17198 states and 25854 transitions.
[2024-12-02 15:20:32,566 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:20:32,567 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1099.0) internal successors, (4396), 4 states have internal predecessors, (4396), 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 4396
[2024-12-02 15:20:32,567 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:20:32,584 INFO  L225             Difference]: With dead ends: 17198
[2024-12-02 15:20:32,585 INFO  L226             Difference]: Without dead ends: 8925
[2024-12-02 15:20:32,591 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
[2024-12-02 15:20:32,592 INFO  L435           NwaCegarLoop]: 12857 mSDtfsCounter, 12535 mSDsluCounter, 12855 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12535 SdHoareTripleChecker+Valid, 25712 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 15:20:32,592 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12535 Valid, 25712 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 15:20:32,603 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8925 states.
[2024-12-02 15:20:32,688 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8925 to 8925.
[2024-12-02 15:20:32,696 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8925 states, 8924 states have (on average 1.5031376064545048) internal successors, (13414), 8924 states have internal predecessors, (13414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:32,707 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8925 states to 8925 states and 13414 transitions.
[2024-12-02 15:20:32,708 INFO  L78                 Accepts]: Start accepts. Automaton has 8925 states and 13414 transitions. Word has length 4396
[2024-12-02 15:20:32,709 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:20:32,709 INFO  L471      AbstractCegarLoop]: Abstraction has 8925 states and 13414 transitions.
[2024-12-02 15:20:32,710 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1099.0) internal successors, (4396), 4 states have internal predecessors, (4396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:32,710 INFO  L276                IsEmpty]: Start isEmpty. Operand 8925 states and 13414 transitions.
[2024-12-02 15:20:32,802 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4398
[2024-12-02 15:20:32,802 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:20:32,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-12-02 15:20:32,857 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 15:20:32,857 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:20:32,858 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:20:32,860 INFO  L85        PathProgramCache]: Analyzing trace with hash 1848423996, now seen corresponding path program 1 times
[2024-12-02 15:20:32,860 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:20:32,860 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403212996]
[2024-12-02 15:20:32,860 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:20:32,861 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:20:37,179 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:20:44,282 INFO  L134       CoverageAnalysis]: Checked inductivity of 176 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:20:44,282 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:20:44,282 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403212996]
[2024-12-02 15:20:44,282 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403212996] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:20:44,282 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:20:44,282 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:20:44,282 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86878754]
[2024-12-02 15:20:44,282 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:20:44,285 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:20:44,285 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:20:44,289 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:20:44,289 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:20:44,290 INFO  L87              Difference]: Start difference. First operand 8925 states and 13414 transitions. Second operand  has 4 states, 4 states have (on average 1099.25) internal successors, (4397), 4 states have internal predecessors, (4397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:44,617 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:20:44,617 INFO  L93              Difference]: Finished difference Result 17198 states and 25852 transitions.
[2024-12-02 15:20:44,617 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:20:44,618 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1099.25) internal successors, (4397), 4 states have internal predecessors, (4397), 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 4397
[2024-12-02 15:20:44,619 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:20:44,628 INFO  L225             Difference]: With dead ends: 17198
[2024-12-02 15:20:44,628 INFO  L226             Difference]: Without dead ends: 8925
[2024-12-02 15:20:44,634 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
[2024-12-02 15:20:44,634 INFO  L435           NwaCegarLoop]: 12856 mSDtfsCounter, 12517 mSDsluCounter, 12854 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12517 SdHoareTripleChecker+Valid, 25710 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 15:20:44,634 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12517 Valid, 25710 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 15:20:44,645 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8925 states.
[2024-12-02 15:20:44,745 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8925 to 8925.
[2024-12-02 15:20:44,755 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8925 states, 8924 states have (on average 1.5030255490811295) internal successors, (13413), 8924 states have internal predecessors, (13413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:44,771 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8925 states to 8925 states and 13413 transitions.
[2024-12-02 15:20:44,772 INFO  L78                 Accepts]: Start accepts. Automaton has 8925 states and 13413 transitions. Word has length 4397
[2024-12-02 15:20:44,773 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:20:44,773 INFO  L471      AbstractCegarLoop]: Abstraction has 8925 states and 13413 transitions.
[2024-12-02 15:20:44,774 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1099.25) internal successors, (4397), 4 states have internal predecessors, (4397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:44,775 INFO  L276                IsEmpty]: Start isEmpty. Operand 8925 states and 13413 transitions.
[2024-12-02 15:20:45,016 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4399
[2024-12-02 15:20:45,016 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:20:45,018 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-12-02 15:20:45,019 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 15:20:45,019 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:20:45,020 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:20:45,022 INFO  L85        PathProgramCache]: Analyzing trace with hash 1433634041, now seen corresponding path program 1 times
[2024-12-02 15:20:45,022 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:20:45,023 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081865971]
[2024-12-02 15:20:45,023 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:20:45,023 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:20:49,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:20:56,742 INFO  L134       CoverageAnalysis]: Checked inductivity of 176 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:20:56,743 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:20:56,743 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081865971]
[2024-12-02 15:20:56,743 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081865971] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:20:56,743 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:20:56,743 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:20:56,743 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683545436]
[2024-12-02 15:20:56,743 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:20:56,745 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:20:56,745 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:20:56,747 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:20:56,747 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:20:56,748 INFO  L87              Difference]: Start difference. First operand 8925 states and 13413 transitions. Second operand  has 4 states, 4 states have (on average 1099.5) internal successors, (4398), 4 states have internal predecessors, (4398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:57,491 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:20:57,491 INFO  L93              Difference]: Finished difference Result 17198 states and 25850 transitions.
[2024-12-02 15:20:57,491 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:20:57,492 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1099.5) internal successors, (4398), 4 states have internal predecessors, (4398), 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 4398
[2024-12-02 15:20:57,493 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:20:57,498 INFO  L225             Difference]: With dead ends: 17198
[2024-12-02 15:20:57,498 INFO  L226             Difference]: Without dead ends: 8925
[2024-12-02 15:20:57,505 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
[2024-12-02 15:20:57,505 INFO  L435           NwaCegarLoop]: 12855 mSDtfsCounter, 12509 mSDsluCounter, 12853 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12509 SdHoareTripleChecker+Valid, 25708 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-12-02 15:20:57,505 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12509 Valid, 25708 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-12-02 15:20:57,516 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8925 states.
[2024-12-02 15:20:57,596 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8925 to 8925.
[2024-12-02 15:20:57,604 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8925 states, 8924 states have (on average 1.5029134917077545) internal successors, (13412), 8924 states have internal predecessors, (13412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:57,615 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8925 states to 8925 states and 13412 transitions.
[2024-12-02 15:20:57,615 INFO  L78                 Accepts]: Start accepts. Automaton has 8925 states and 13412 transitions. Word has length 4398
[2024-12-02 15:20:57,616 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:20:57,616 INFO  L471      AbstractCegarLoop]: Abstraction has 8925 states and 13412 transitions.
[2024-12-02 15:20:57,617 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1099.5) internal successors, (4398), 4 states have internal predecessors, (4398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:20:57,618 INFO  L276                IsEmpty]: Start isEmpty. Operand 8925 states and 13412 transitions.
[2024-12-02 15:20:57,740 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4400
[2024-12-02 15:20:57,740 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:20:57,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-12-02 15:20:57,743 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 15:20:57,743 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:20:57,744 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:20:57,746 INFO  L85        PathProgramCache]: Analyzing trace with hash -860090026, now seen corresponding path program 1 times
[2024-12-02 15:20:57,746 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:20:57,746 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003417246]
[2024-12-02 15:20:57,747 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:20:57,747 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:21:02,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:21:08,584 INFO  L134       CoverageAnalysis]: Checked inductivity of 176 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:21:08,585 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:21:08,585 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003417246]
[2024-12-02 15:21:08,585 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003417246] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:21:08,585 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:21:08,585 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:21:08,585 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963601530]
[2024-12-02 15:21:08,585 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:21:08,587 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:21:08,587 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:21:08,590 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:21:08,590 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:21:08,591 INFO  L87              Difference]: Start difference. First operand 8925 states and 13412 transitions. Second operand  has 4 states, 4 states have (on average 1099.75) internal successors, (4399), 4 states have internal predecessors, (4399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:09,154 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:21:09,154 INFO  L93              Difference]: Finished difference Result 17198 states and 25848 transitions.
[2024-12-02 15:21:09,155 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:21:09,156 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1099.75) internal successors, (4399), 4 states have internal predecessors, (4399), 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 4399
[2024-12-02 15:21:09,156 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:21:09,160 INFO  L225             Difference]: With dead ends: 17198
[2024-12-02 15:21:09,160 INFO  L226             Difference]: Without dead ends: 8925
[2024-12-02 15:21:09,162 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
[2024-12-02 15:21:09,162 INFO  L435           NwaCegarLoop]: 12854 mSDtfsCounter, 12503 mSDsluCounter, 12852 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12503 SdHoareTripleChecker+Valid, 25706 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 15:21:09,163 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12503 Valid, 25706 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 15:21:09,169 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8925 states.
[2024-12-02 15:21:09,228 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8925 to 8925.
[2024-12-02 15:21:09,237 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8925 states, 8924 states have (on average 1.5028014343343792) internal successors, (13411), 8924 states have internal predecessors, (13411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:09,248 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8925 states to 8925 states and 13411 transitions.
[2024-12-02 15:21:09,248 INFO  L78                 Accepts]: Start accepts. Automaton has 8925 states and 13411 transitions. Word has length 4399
[2024-12-02 15:21:09,249 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:21:09,249 INFO  L471      AbstractCegarLoop]: Abstraction has 8925 states and 13411 transitions.
[2024-12-02 15:21:09,250 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1099.75) internal successors, (4399), 4 states have internal predecessors, (4399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:09,250 INFO  L276                IsEmpty]: Start isEmpty. Operand 8925 states and 13411 transitions.
[2024-12-02 15:21:09,373 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4401
[2024-12-02 15:21:09,373 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:21:09,375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-12-02 15:21:09,376 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 15:21:09,376 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:21:09,377 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:21:09,379 INFO  L85        PathProgramCache]: Analyzing trace with hash -958203668, now seen corresponding path program 1 times
[2024-12-02 15:21:09,379 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:21:09,379 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489621094]
[2024-12-02 15:21:09,380 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:21:09,380 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:21:13,691 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:21:20,065 INFO  L134       CoverageAnalysis]: Checked inductivity of 176 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:21:20,065 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:21:20,065 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489621094]
[2024-12-02 15:21:20,065 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489621094] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:21:20,065 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:21:20,065 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:21:20,065 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791463567]
[2024-12-02 15:21:20,065 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:21:20,067 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 15:21:20,067 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:21:20,069 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 15:21:20,069 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 15:21:20,069 INFO  L87              Difference]: Start difference. First operand 8925 states and 13411 transitions. Second operand  has 4 states, 4 states have (on average 1100.0) internal successors, (4400), 4 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:20,369 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:21:20,369 INFO  L93              Difference]: Finished difference Result 17198 states and 25846 transitions.
[2024-12-02 15:21:20,369 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 15:21:20,370 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1100.0) internal successors, (4400), 4 states have internal predecessors, (4400), 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 4400
[2024-12-02 15:21:20,371 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:21:20,375 INFO  L225             Difference]: With dead ends: 17198
[2024-12-02 15:21:20,376 INFO  L226             Difference]: Without dead ends: 8925
[2024-12-02 15:21:20,380 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
[2024-12-02 15:21:20,380 INFO  L435           NwaCegarLoop]: 12853 mSDtfsCounter, 12461 mSDsluCounter, 12851 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12461 SdHoareTripleChecker+Valid, 25704 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 15:21:20,380 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [12461 Valid, 25704 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 15:21:20,387 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8925 states.
[2024-12-02 15:21:20,438 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8925 to 8925.
[2024-12-02 15:21:20,445 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8925 states, 8924 states have (on average 1.5026893769610041) internal successors, (13410), 8924 states have internal predecessors, (13410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:20,452 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8925 states to 8925 states and 13410 transitions.
[2024-12-02 15:21:20,452 INFO  L78                 Accepts]: Start accepts. Automaton has 8925 states and 13410 transitions. Word has length 4400
[2024-12-02 15:21:20,452 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:21:20,453 INFO  L471      AbstractCegarLoop]: Abstraction has 8925 states and 13410 transitions.
[2024-12-02 15:21:20,453 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1100.0) internal successors, (4400), 4 states have internal predecessors, (4400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:21:20,453 INFO  L276                IsEmpty]: Start isEmpty. Operand 8925 states and 13410 transitions.
[2024-12-02 15:21:20,870 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4402
[2024-12-02 15:21:20,870 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:21:20,872 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-12-02 15:21:20,872 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 15:21:20,872 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:21:20,873 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:21:20,874 INFO  L85        PathProgramCache]: Analyzing trace with hash 1626016871, now seen corresponding path program 1 times
[2024-12-02 15:21:20,874 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:21:20,874 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729570373]
[2024-12-02 15:21:20,875 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:21:20,875 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms