./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.2.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 826ab2ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd --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 e9da64380f47890617fc4ad472069c1bd7b8c79b168e9d1d2018b4ba0fbfd33e
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-13 15:53:41,349 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-13 15:53:41,482 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-13 15:53:41,500 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-13 15:53:41,500 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-13 15:53:41,555 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-13 15:53:41,556 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-13 15:53:41,556 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-13 15:53:41,557 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-13 15:53:41,557 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-13 15:53:41,558 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-13 15:53:41,559 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-13 15:53:41,560 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-13 15:53:41,560 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-13 15:53:41,560 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-13 15:53:41,561 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-13 15:53:41,561 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-13 15:53:41,562 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-13 15:53:41,562 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-13 15:53:41,562 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-13 15:53:41,562 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-13 15:53:41,563 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-13 15:53:41,563 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-13 15:53:41,563 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-13 15:53:41,563 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-13 15:53:41,563 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-13 15:53:41,563 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-13 15:53:41,564 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-13 15:53:41,564 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-13 15:53:41,564 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 15:53:41,565 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-13 15:53:41,565 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-13 15:53:41,565 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-13 15:53:41,565 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-13 15:53:41,565 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-13 15:53:41,566 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-13 15:53:41,566 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-13 15:53:41,567 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-13 15:53:41,567 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-13 15:53:41,567 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_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd
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 -> e9da64380f47890617fc4ad472069c1bd7b8c79b168e9d1d2018b4ba0fbfd33e
[2024-11-13 15:53:41,968 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-13 15:53:41,984 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-13 15:53:41,988 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-13 15:53:41,990 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-13 15:53:41,991 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-13 15:53:41,994 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.2.prop1-func-interl.c
Unable to find full path for "g++"
[2024-11-13 15:53:44,358 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-13 15:53:45,072 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-13 15:53:45,073 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.2.prop1-func-interl.c
[2024-11-13 15:53:45,119 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/data/c80708c80/1379b8346d514d4caabefd638d922c1c/FLAGdf0cb1b54
[2024-11-13 15:53:45,437 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/data/c80708c80/1379b8346d514d4caabefd638d922c1c
[2024-11-13 15:53:45,440 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-13 15:53:45,441 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-13 15:53:45,443 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-13 15:53:45,443 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-13 15:53:45,447 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-13 15:53:45,448 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:53:45" (1/1) ...
[2024-11-13 15:53:45,449 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38557676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:45, skipping insertion in model container
[2024-11-13 15:53:45,449 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:53:45" (1/1) ...
[2024-11-13 15:53:45,577 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-13 15:53:45,914 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_dd3f7379-c9bd-4514-b81f-232298c4f3d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.2.prop1-func-interl.c[1180,1193]
[2024-11-13 15:53:46,910 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 15:53:46,925 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-13 15:53:46,940 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_dd3f7379-c9bd-4514-b81f-232298c4f3d4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.reader_writer.2.prop1-func-interl.c[1180,1193]
[2024-11-13 15:53:47,475 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-13 15:53:47,495 INFO  L204         MainTranslator]: Completed translation
[2024-11-13 15:53:47,496 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47 WrapperNode
[2024-11-13 15:53:47,497 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-13 15:53:47,498 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-13 15:53:47,498 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-13 15:53:47,499 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-13 15:53:47,507 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:47,660 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:49,693 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 15869
[2024-11-13 15:53:49,693 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-13 15:53:49,694 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-13 15:53:49,694 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-13 15:53:49,694 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-13 15:53:49,705 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:49,705 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:50,177 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:50,711 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-13 15:53:50,712 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:50,712 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:51,254 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:51,374 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:51,465 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:51,536 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:51,840 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-13 15:53:51,841 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-13 15:53:51,841 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-13 15:53:51,841 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-13 15:53:51,842 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (1/1) ...
[2024-11-13 15:53:51,850 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-13 15:53:51,867 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 15:53:51,884 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-13 15:53:52,134 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-13 15:53:52,161 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-13 15:53:52,162 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-13 15:53:52,162 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-13 15:53:52,162 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-13 15:53:53,496 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-13 15:53:53,499 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-13 15:54:26,962 INFO  L?                        ?]: Removed 8642 outVars from TransFormulas that were not future-live.
[2024-11-13 15:54:26,963 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-13 15:54:27,115 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-13 15:54:27,116 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-13 15:54:27,117 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:54:27 BoogieIcfgContainer
[2024-11-13 15:54:27,117 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-13 15:54:27,121 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-13 15:54:27,121 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-13 15:54:27,127 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-13 15:54:27,128 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:53:45" (1/3) ...
[2024-11-13 15:54:27,130 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d5dd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:54:27, skipping insertion in model container
[2024-11-13 15:54:27,130 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:53:47" (2/3) ...
[2024-11-13 15:54:27,131 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d5dd3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:54:27, skipping insertion in model container
[2024-11-13 15:54:27,131 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:54:27" (3/3) ...
[2024-11-13 15:54:27,134 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.reader_writer.2.prop1-func-interl.c
[2024-11-13 15:54:27,154 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-13 15:54:27,157 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.reader_writer.2.prop1-func-interl.c that has 1 procedures, 5842 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-13 15:54:27,391 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-13 15:54:27,411 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;@54fa59b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-13 15:54:27,412 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-13 15:54:27,442 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5842 states, 5840 states have (on average 1.4998287671232877) internal successors, (8759), 5841 states have internal predecessors, (8759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:27,469 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 196
[2024-11-13 15:54:27,469 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:54:27,470 INFO  L215           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]
[2024-11-13 15:54:27,471 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:54:27,478 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:54:27,479 INFO  L85        PathProgramCache]: Analyzing trace with hash -254106457, now seen corresponding path program 1 times
[2024-11-13 15:54:27,490 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:54:27,491 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521304966]
[2024-11-13 15:54:27,491 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:54:27,492 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:54:28,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:54:29,513 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:54:29,514 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:54:29,514 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521304966]
[2024-11-13 15:54:29,515 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521304966] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:54:29,515 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 15:54:29,516 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 15:54:29,518 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354060400]
[2024-11-13 15:54:29,518 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:54:29,527 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 15:54:29,527 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:54:29,560 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 15:54:29,561 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 15:54:29,579 INFO  L87              Difference]: Start difference. First operand  has 5842 states, 5840 states have (on average 1.4998287671232877) internal successors, (8759), 5841 states have internal predecessors, (8759), 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 48.75) internal successors, (195), 4 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:30,212 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:54:30,215 INFO  L93              Difference]: Finished difference Result 11505 states and 17253 transitions.
[2024-11-13 15:54:30,217 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 15:54:30,219 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 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 195
[2024-11-13 15:54:30,221 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:54:30,285 INFO  L225             Difference]: With dead ends: 11505
[2024-11-13 15:54:30,286 INFO  L226             Difference]: Without dead ends: 5841
[2024-11-13 15:54:30,300 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 15:54:30,304 INFO  L432           NwaCegarLoop]: 8753 mSDtfsCounter, 0 mSDsluCounter, 17500 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26253 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-13 15:54:30,306 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26253 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-13 15:54:30,340 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5841 states.
[2024-11-13 15:54:30,572 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5841 to 5841.
[2024-11-13 15:54:30,588 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5841 states, 5840 states have (on average 1.499486301369863) internal successors, (8757), 5840 states have internal predecessors, (8757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:30,629 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5841 states to 5841 states and 8757 transitions.
[2024-11-13 15:54:30,631 INFO  L78                 Accepts]: Start accepts. Automaton has 5841 states and 8757 transitions. Word has length 195
[2024-11-13 15:54:30,634 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:54:30,635 INFO  L471      AbstractCegarLoop]: Abstraction has 5841 states and 8757 transitions.
[2024-11-13 15:54:30,635 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 48.75) internal successors, (195), 4 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:30,635 INFO  L276                IsEmpty]: Start isEmpty. Operand 5841 states and 8757 transitions.
[2024-11-13 15:54:30,643 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 197
[2024-11-13 15:54:30,647 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:54:30,647 INFO  L215           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]
[2024-11-13 15:54:30,648 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-13 15:54:30,648 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:54:30,649 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:54:30,649 INFO  L85        PathProgramCache]: Analyzing trace with hash 714330813, now seen corresponding path program 1 times
[2024-11-13 15:54:30,652 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:54:30,652 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948246047]
[2024-11-13 15:54:30,652 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:54:30,653 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:54:30,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:54:31,429 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:54:31,431 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:54:31,431 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948246047]
[2024-11-13 15:54:31,431 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948246047] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:54:31,432 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 15:54:31,432 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 15:54:31,432 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330532911]
[2024-11-13 15:54:31,432 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:54:31,434 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 15:54:31,434 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:54:31,437 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 15:54:31,437 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 15:54:31,440 INFO  L87              Difference]: Start difference. First operand 5841 states and 8757 transitions. Second operand  has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:31,785 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:54:31,785 INFO  L93              Difference]: Finished difference Result 11506 states and 17251 transitions.
[2024-11-13 15:54:31,785 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 15:54:31,786 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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 196
[2024-11-13 15:54:31,787 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:54:31,814 INFO  L225             Difference]: With dead ends: 11506
[2024-11-13 15:54:31,815 INFO  L226             Difference]: Without dead ends: 5843
[2024-11-13 15:54:31,823 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 15:54:31,825 INFO  L432           NwaCegarLoop]: 8753 mSDtfsCounter, 0 mSDsluCounter, 17496 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26249 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 15:54:31,827 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26249 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 15:54:31,842 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5843 states.
[2024-11-13 15:54:31,973 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5843 to 5843.
[2024-11-13 15:54:31,985 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5843 states, 5842 states have (on average 1.499315302978432) internal successors, (8759), 5842 states have internal predecessors, (8759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:32,019 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5843 states to 5843 states and 8759 transitions.
[2024-11-13 15:54:32,020 INFO  L78                 Accepts]: Start accepts. Automaton has 5843 states and 8759 transitions. Word has length 196
[2024-11-13 15:54:32,022 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:54:32,022 INFO  L471      AbstractCegarLoop]: Abstraction has 5843 states and 8759 transitions.
[2024-11-13 15:54:32,022 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:32,023 INFO  L276                IsEmpty]: Start isEmpty. Operand 5843 states and 8759 transitions.
[2024-11-13 15:54:32,026 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 198
[2024-11-13 15:54:32,028 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:54:32,028 INFO  L215           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]
[2024-11-13 15:54:32,029 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-13 15:54:32,029 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:54:32,029 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:54:32,029 INFO  L85        PathProgramCache]: Analyzing trace with hash -428545984, now seen corresponding path program 1 times
[2024-11-13 15:54:32,030 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:54:32,030 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944707238]
[2024-11-13 15:54:32,030 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:54:32,030 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:54:32,196 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:54:32,727 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:54:32,729 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:54:32,730 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944707238]
[2024-11-13 15:54:32,730 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944707238] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:54:32,730 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 15:54:32,730 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 15:54:32,730 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52955550]
[2024-11-13 15:54:32,730 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:54:32,731 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 15:54:32,732 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:54:32,733 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 15:54:32,733 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 15:54:32,734 INFO  L87              Difference]: Start difference. First operand 5843 states and 8759 transitions. Second operand  has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:33,209 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:54:33,210 INFO  L93              Difference]: Finished difference Result 11510 states and 17255 transitions.
[2024-11-13 15:54:33,210 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 15:54:33,211 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 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 197
[2024-11-13 15:54:33,211 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:54:33,236 INFO  L225             Difference]: With dead ends: 11510
[2024-11-13 15:54:33,236 INFO  L226             Difference]: Without dead ends: 5845
[2024-11-13 15:54:33,243 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-13 15:54:33,247 INFO  L432           NwaCegarLoop]: 8753 mSDtfsCounter, 0 mSDsluCounter, 17490 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26243 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-13 15:54:33,248 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26243 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-13 15:54:33,263 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5845 states.
[2024-11-13 15:54:33,387 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5845 to 5845.
[2024-11-13 15:54:33,410 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5845 states, 5844 states have (on average 1.4991444216290213) internal successors, (8761), 5844 states have internal predecessors, (8761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:33,446 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5845 states to 5845 states and 8761 transitions.
[2024-11-13 15:54:33,446 INFO  L78                 Accepts]: Start accepts. Automaton has 5845 states and 8761 transitions. Word has length 197
[2024-11-13 15:54:33,447 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:54:33,447 INFO  L471      AbstractCegarLoop]: Abstraction has 5845 states and 8761 transitions.
[2024-11-13 15:54:33,448 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 49.25) internal successors, (197), 4 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:33,452 INFO  L276                IsEmpty]: Start isEmpty. Operand 5845 states and 8761 transitions.
[2024-11-13 15:54:33,455 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 199
[2024-11-13 15:54:33,459 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:54:33,459 INFO  L215           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]
[2024-11-13 15:54:33,460 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-13 15:54:33,460 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:54:33,460 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:54:33,460 INFO  L85        PathProgramCache]: Analyzing trace with hash 508864420, now seen corresponding path program 1 times
[2024-11-13 15:54:33,460 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:54:33,461 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892641467]
[2024-11-13 15:54:33,461 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:54:33,461 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:54:33,600 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:54:34,240 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:54:34,240 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:54:34,240 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892641467]
[2024-11-13 15:54:34,240 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892641467] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:54:34,240 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 15:54:34,240 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-13 15:54:34,241 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535536706]
[2024-11-13 15:54:34,241 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:54:34,243 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-13 15:54:34,244 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:54:34,244 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-13 15:54:34,245 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-13 15:54:34,246 INFO  L87              Difference]: Start difference. First operand 5845 states and 8761 transitions. Second operand  has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:34,771 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:54:34,771 INFO  L93              Difference]: Finished difference Result 16721 states and 25066 transitions.
[2024-11-13 15:54:34,771 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-13 15:54:34,772 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 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 198
[2024-11-13 15:54:34,773 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:54:34,838 INFO  L225             Difference]: With dead ends: 16721
[2024-11-13 15:54:34,840 INFO  L226             Difference]: Without dead ends: 11054
[2024-11-13 15:54:34,850 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-13 15:54:34,851 INFO  L432           NwaCegarLoop]: 8749 mSDtfsCounter, 7889 mSDsluCounter, 25976 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7889 SdHoareTripleChecker+Valid, 34725 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-13 15:54:34,851 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7889 Valid, 34725 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-13 15:54:34,874 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11054 states.
[2024-11-13 15:54:35,042 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11054 to 6041.
[2024-11-13 15:54:35,054 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6041 states, 6040 states have (on average 1.4991721854304636) internal successors, (9055), 6040 states have internal predecessors, (9055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:35,085 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6041 states to 6041 states and 9055 transitions.
[2024-11-13 15:54:35,085 INFO  L78                 Accepts]: Start accepts. Automaton has 6041 states and 9055 transitions. Word has length 198
[2024-11-13 15:54:35,086 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:54:35,086 INFO  L471      AbstractCegarLoop]: Abstraction has 6041 states and 9055 transitions.
[2024-11-13 15:54:35,086 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 39.6) internal successors, (198), 5 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:54:35,087 INFO  L276                IsEmpty]: Start isEmpty. Operand 6041 states and 9055 transitions.
[2024-11-13 15:54:35,413 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3030
[2024-11-13 15:54:35,413 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:54:35,415 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-13 15:54:35,416 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-13 15:54:35,417 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:54:35,417 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:54:35,419 INFO  L85        PathProgramCache]: Analyzing trace with hash -1237480882, now seen corresponding path program 1 times
[2024-11-13 15:54:35,419 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:54:35,420 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110998789]
[2024-11-13 15:54:35,421 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:54:35,421 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:55:03,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:55:20,712 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 6 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:55:20,712 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:55:20,712 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110998789]
[2024-11-13 15:55:20,712 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110998789] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 15:55:20,712 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519549370]
[2024-11-13 15:55:20,714 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:55:20,715 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 15:55:20,715 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 15:55:20,718 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 15:55:20,721 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-13 15:55:25,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:55:25,908 INFO  L255         TraceCheckSpWp]: Trace formula consists of 12223 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-13 15:55:26,011 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 15:55:32,354 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:55:32,355 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-13 15:55:32,355 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519549370] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:55:32,355 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-13 15:55:32,357 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7] total 14
[2024-11-13 15:55:32,357 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674625556]
[2024-11-13 15:55:32,357 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:55:32,363 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-13 15:55:32,363 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:55:32,369 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-13 15:55:32,370 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182
[2024-11-13 15:55:32,372 INFO  L87              Difference]: Start difference. First operand 6041 states and 9055 transitions. Second operand  has 9 states, 9 states have (on average 336.55555555555554) internal successors, (3029), 9 states have internal predecessors, (3029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:55:33,514 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:55:33,514 INFO  L93              Difference]: Finished difference Result 16954 states and 25415 transitions.
[2024-11-13 15:55:33,515 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-13 15:55:33,516 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 336.55555555555554) internal successors, (3029), 9 states have internal predecessors, (3029), 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 3029
[2024-11-13 15:55:33,526 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:55:33,564 INFO  L225             Difference]: With dead ends: 16954
[2024-11-13 15:55:33,564 INFO  L226             Difference]: Without dead ends: 11287
[2024-11-13 15:55:33,573 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3039 GetRequests, 3024 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272
[2024-11-13 15:55:33,574 INFO  L432           NwaCegarLoop]: 16544 mSDtfsCounter, 11356 mSDsluCounter, 91434 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11356 SdHoareTripleChecker+Valid, 107978 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-13 15:55:33,575 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11356 Valid, 107978 Invalid, 140 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-13 15:55:33,598 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11287 states.
[2024-11-13 15:55:33,778 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 6078.
[2024-11-13 15:55:33,789 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6078 states, 6077 states have (on average 1.4990949481652132) internal successors, (9110), 6077 states have internal predecessors, (9110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:55:33,807 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6078 states to 6078 states and 9110 transitions.
[2024-11-13 15:55:33,807 INFO  L78                 Accepts]: Start accepts. Automaton has 6078 states and 9110 transitions. Word has length 3029
[2024-11-13 15:55:33,814 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:55:33,814 INFO  L471      AbstractCegarLoop]: Abstraction has 6078 states and 9110 transitions.
[2024-11-13 15:55:33,816 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 336.55555555555554) internal successors, (3029), 9 states have internal predecessors, (3029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:55:33,816 INFO  L276                IsEmpty]: Start isEmpty. Operand 6078 states and 9110 transitions.
[2024-11-13 15:55:33,948 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3031
[2024-11-13 15:55:33,948 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:55:33,950 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-13 15:55:34,013 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-13 15:55:34,151 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 15:55:34,151 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:55:34,152 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:55:34,154 INFO  L85        PathProgramCache]: Analyzing trace with hash -2036838264, now seen corresponding path program 1 times
[2024-11-13 15:55:34,154 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:55:34,154 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679768897]
[2024-11-13 15:55:34,155 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:55:34,155 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:55:46,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:55:55,451 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 6 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:55:55,452 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:55:55,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679768897]
[2024-11-13 15:55:55,452 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679768897] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-13 15:55:55,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783592106]
[2024-11-13 15:55:55,453 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:55:55,453 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 15:55:55,453 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3
[2024-11-13 15:55:55,458 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-13 15:55:55,461 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-13 15:56:06,901 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:56:06,987 INFO  L255         TraceCheckSpWp]: Trace formula consists of 12226 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-13 15:56:07,095 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-13 15:56:18,771 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 6 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:56:18,771 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-13 15:56:28,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 104 backedges. 6 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:56:28,737 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783592106] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-13 15:56:28,737 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-13 15:56:28,739 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11
[2024-11-13 15:56:28,739 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594371951]
[2024-11-13 15:56:28,739 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-13 15:56:28,747 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-13 15:56:28,747 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:56:28,753 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-13 15:56:28,753 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110
[2024-11-13 15:56:28,756 INFO  L87              Difference]: Start difference. First operand 6078 states and 9110 transitions. Second operand  has 11 states, 11 states have (on average 540.6363636363636) internal successors, (5947), 11 states have internal predecessors, (5947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:56:37,191 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:56:37,191 INFO  L93              Difference]: Finished difference Result 27190 states and 40760 transitions.
[2024-11-13 15:56:37,192 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-13 15:56:37,194 INFO  L78                 Accepts]: Start accepts. Automaton has  has 11 states, 11 states have (on average 540.6363636363636) internal successors, (5947), 11 states have internal predecessors, (5947), 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 3030
[2024-11-13 15:56:37,200 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:56:37,228 INFO  L225             Difference]: With dead ends: 27190
[2024-11-13 15:56:37,229 INFO  L226             Difference]: Without dead ends: 11746
[2024-11-13 15:56:37,243 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6065 GetRequests, 6056 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110
[2024-11-13 15:56:37,245 INFO  L432           NwaCegarLoop]: 8388 mSDtfsCounter, 23873 mSDsluCounter, 55855 mSDsCounter, 0 mSdLazyCounter, 5751 mSolverCounterSat, 856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23873 SdHoareTripleChecker+Valid, 64243 SdHoareTripleChecker+Invalid, 6607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 5751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time
[2024-11-13 15:56:37,246 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [23873 Valid, 64243 Invalid, 6607 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [856 Valid, 5751 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time]
[2024-11-13 15:56:37,266 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11746 states.
[2024-11-13 15:56:37,401 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11746 to 6272.
[2024-11-13 15:56:37,412 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6272 states, 6271 states have (on average 1.4989634826981342) internal successors, (9400), 6271 states have internal predecessors, (9400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:56:37,423 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6272 states to 6272 states and 9400 transitions.
[2024-11-13 15:56:37,423 INFO  L78                 Accepts]: Start accepts. Automaton has 6272 states and 9400 transitions. Word has length 3030
[2024-11-13 15:56:37,424 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:56:37,424 INFO  L471      AbstractCegarLoop]: Abstraction has 6272 states and 9400 transitions.
[2024-11-13 15:56:37,426 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 11 states, 11 states have (on average 540.6363636363636) internal successors, (5947), 11 states have internal predecessors, (5947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:56:37,427 INFO  L276                IsEmpty]: Start isEmpty. Operand 6272 states and 9400 transitions.
[2024-11-13 15:56:37,505 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3032
[2024-11-13 15:56:37,505 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:56:37,507 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-13 15:56:37,579 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-13 15:56:37,708 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd3f7379-c9bd-4514-b81f-232298c4f3d4/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-13 15:56:37,709 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:56:37,710 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:56:37,711 INFO  L85        PathProgramCache]: Analyzing trace with hash -1579399772, now seen corresponding path program 1 times
[2024-11-13 15:56:37,711 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:56:37,711 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214793252]
[2024-11-13 15:56:37,712 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:56:37,712 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:56:53,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:57:01,770 INFO  L134       CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:57:01,770 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:57:01,771 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214793252]
[2024-11-13 15:57:01,771 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214793252] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:57:01,771 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 15:57:01,771 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-13 15:57:01,772 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647424555]
[2024-11-13 15:57:01,772 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:57:01,774 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-13 15:57:01,775 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:57:01,778 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-13 15:57:01,778 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-13 15:57:01,780 INFO  L87              Difference]: Start difference. First operand 6272 states and 9400 transitions. Second operand  has 6 states, 6 states have (on average 505.1666666666667) internal successors, (3031), 6 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:57:10,787 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:57:10,787 INFO  L93              Difference]: Finished difference Result 16717 states and 25057 transitions.
[2024-11-13 15:57:10,787 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-13 15:57:10,788 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 505.1666666666667) internal successors, (3031), 6 states have internal predecessors, (3031), 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 3031
[2024-11-13 15:57:10,788 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:57:10,816 INFO  L225             Difference]: With dead ends: 16717
[2024-11-13 15:57:10,816 INFO  L226             Difference]: Without dead ends: 10817
[2024-11-13 15:57:10,823 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-13 15:57:10,824 INFO  L432           NwaCegarLoop]: 7035 mSDtfsCounter, 7069 mSDsluCounter, 28084 mSDsCounter, 0 mSdLazyCounter, 8820 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7069 SdHoareTripleChecker+Valid, 35119 SdHoareTripleChecker+Invalid, 8868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 8820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time
[2024-11-13 15:57:10,824 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7069 Valid, 35119 Invalid, 8868 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 8820 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time]
[2024-11-13 15:57:10,842 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10817 states.
[2024-11-13 15:57:10,997 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10817 to 6294.
[2024-11-13 15:57:11,005 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6294 states, 6293 states have (on average 1.4983314794215796) internal successors, (9429), 6293 states have internal predecessors, (9429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:57:11,021 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6294 states to 6294 states and 9429 transitions.
[2024-11-13 15:57:11,021 INFO  L78                 Accepts]: Start accepts. Automaton has 6294 states and 9429 transitions. Word has length 3031
[2024-11-13 15:57:11,023 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:57:11,023 INFO  L471      AbstractCegarLoop]: Abstraction has 6294 states and 9429 transitions.
[2024-11-13 15:57:11,024 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 505.1666666666667) internal successors, (3031), 6 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:57:11,024 INFO  L276                IsEmpty]: Start isEmpty. Operand 6294 states and 9429 transitions.
[2024-11-13 15:57:11,202 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3033
[2024-11-13 15:57:11,202 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:57:11,204 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-13 15:57:11,206 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-13 15:57:11,206 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:57:11,207 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:57:11,208 INFO  L85        PathProgramCache]: Analyzing trace with hash 1499305324, now seen corresponding path program 1 times
[2024-11-13 15:57:11,208 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:57:11,208 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737877484]
[2024-11-13 15:57:11,209 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:57:11,209 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:57:23,283 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:57:30,493 INFO  L134       CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:57:30,493 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:57:30,494 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737877484]
[2024-11-13 15:57:30,494 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737877484] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:57:30,494 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 15:57:30,494 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-13 15:57:30,494 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567150498]
[2024-11-13 15:57:30,494 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:57:30,498 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-13 15:57:30,498 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:57:30,501 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-13 15:57:30,501 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-13 15:57:30,502 INFO  L87              Difference]: Start difference. First operand 6294 states and 9429 transitions. Second operand  has 4 states, 4 states have (on average 758.0) internal successors, (3032), 4 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:57:36,073 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:57:36,073 INFO  L93              Difference]: Finished difference Result 12194 states and 18273 transitions.
[2024-11-13 15:57:36,074 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-13 15:57:36,074 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 758.0) internal successors, (3032), 4 states have internal predecessors, (3032), 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 3032
[2024-11-13 15:57:36,077 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:57:36,089 INFO  L225             Difference]: With dead ends: 12194
[2024-11-13 15:57:36,089 INFO  L226             Difference]: Without dead ends: 6294
[2024-11-13 15:57:36,095 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-13 15:57:36,096 INFO  L432           NwaCegarLoop]: 6270 mSDtfsCounter, 7564 mSDsluCounter, 6251 mSDsCounter, 0 mSdLazyCounter, 4985 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7564 SdHoareTripleChecker+Valid, 12521 SdHoareTripleChecker+Invalid, 4986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2024-11-13 15:57:36,096 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7564 Valid, 12521 Invalid, 4986 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 4985 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2024-11-13 15:57:36,105 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6294 states.
[2024-11-13 15:57:36,180 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6294 to 6294.
[2024-11-13 15:57:36,187 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6294 states, 6293 states have (on average 1.4981725726998252) internal successors, (9428), 6293 states have internal predecessors, (9428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:57:36,197 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6294 states to 6294 states and 9428 transitions.
[2024-11-13 15:57:36,198 INFO  L78                 Accepts]: Start accepts. Automaton has 6294 states and 9428 transitions. Word has length 3032
[2024-11-13 15:57:36,201 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:57:36,201 INFO  L471      AbstractCegarLoop]: Abstraction has 6294 states and 9428 transitions.
[2024-11-13 15:57:36,202 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 758.0) internal successors, (3032), 4 states have internal predecessors, (3032), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:57:36,202 INFO  L276                IsEmpty]: Start isEmpty. Operand 6294 states and 9428 transitions.
[2024-11-13 15:57:36,283 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3034
[2024-11-13 15:57:36,284 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:57:36,286 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-13 15:57:36,287 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-13 15:57:36,287 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:57:36,288 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:57:36,289 INFO  L85        PathProgramCache]: Analyzing trace with hash 675288106, now seen corresponding path program 1 times
[2024-11-13 15:57:36,289 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:57:36,289 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869602320]
[2024-11-13 15:57:36,290 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:57:36,290 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:57:48,043 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:57:56,889 INFO  L134       CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:57:56,889 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:57:56,889 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869602320]
[2024-11-13 15:57:56,889 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869602320] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:57:56,890 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 15:57:56,890 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-13 15:57:56,890 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287151465]
[2024-11-13 15:57:56,890 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:57:56,893 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-13 15:57:56,893 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:57:56,895 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-13 15:57:56,895 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-13 15:57:56,896 INFO  L87              Difference]: Start difference. First operand 6294 states and 9428 transitions. Second operand  has 6 states, 6 states have (on average 505.5) internal successors, (3033), 6 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:58:06,255 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:58:06,256 INFO  L93              Difference]: Finished difference Result 12851 states and 19256 transitions.
[2024-11-13 15:58:06,256 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-13 15:58:06,257 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 505.5) internal successors, (3033), 6 states have internal predecessors, (3033), 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 3033
[2024-11-13 15:58:06,259 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:58:06,274 INFO  L225             Difference]: With dead ends: 12851
[2024-11-13 15:58:06,274 INFO  L226             Difference]: Without dead ends: 6951
[2024-11-13 15:58:06,279 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-13 15:58:06,280 INFO  L432           NwaCegarLoop]: 6259 mSDtfsCounter, 8521 mSDsluCounter, 18756 mSDsCounter, 0 mSdLazyCounter, 9996 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8521 SdHoareTripleChecker+Valid, 25015 SdHoareTripleChecker+Invalid, 9997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time
[2024-11-13 15:58:06,280 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [8521 Valid, 25015 Invalid, 9997 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 9996 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time]
[2024-11-13 15:58:06,289 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6951 states.
[2024-11-13 15:58:06,361 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6951 to 6352.
[2024-11-13 15:58:06,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6352 states, 6351 states have (on average 1.4980318060148008) internal successors, (9514), 6351 states have internal predecessors, (9514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:58:06,378 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6352 states to 6352 states and 9514 transitions.
[2024-11-13 15:58:06,379 INFO  L78                 Accepts]: Start accepts. Automaton has 6352 states and 9514 transitions. Word has length 3033
[2024-11-13 15:58:06,380 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:58:06,380 INFO  L471      AbstractCegarLoop]: Abstraction has 6352 states and 9514 transitions.
[2024-11-13 15:58:06,381 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 505.5) internal successors, (3033), 6 states have internal predecessors, (3033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:58:06,382 INFO  L276                IsEmpty]: Start isEmpty. Operand 6352 states and 9514 transitions.
[2024-11-13 15:58:06,461 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3035
[2024-11-13 15:58:06,461 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:58:06,463 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-13 15:58:06,463 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-13 15:58:06,464 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:58:06,464 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:58:06,465 INFO  L85        PathProgramCache]: Analyzing trace with hash 1666672629, now seen corresponding path program 1 times
[2024-11-13 15:58:06,465 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:58:06,466 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933058192]
[2024-11-13 15:58:06,466 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:58:06,466 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:58:24,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-13 15:58:32,221 INFO  L134       CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-13 15:58:32,221 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-13 15:58:32,221 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933058192]
[2024-11-13 15:58:32,221 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933058192] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-13 15:58:32,221 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-13 15:58:32,222 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-13 15:58:32,222 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069148597]
[2024-11-13 15:58:32,222 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-13 15:58:32,223 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-13 15:58:32,223 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-13 15:58:32,225 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-13 15:58:32,225 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-13 15:58:32,226 INFO  L87              Difference]: Start difference. First operand 6352 states and 9514 transitions. Second operand  has 6 states, 6 states have (on average 505.6666666666667) internal successors, (3034), 6 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:58:36,283 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-13 15:58:40,307 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-13 15:58:44,325 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-13 15:58:48,333 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-13 15:58:52,348 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-13 15:58:56,373 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-13 15:59:05,145 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-13 15:59:09,152 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-13 15:59:13,160 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-13 15:59:14,598 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-13 15:59:15,231 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-13 15:59:15,231 INFO  L93              Difference]: Finished difference Result 18097 states and 27107 transitions.
[2024-11-13 15:59:15,231 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-13 15:59:15,232 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 505.6666666666667) internal successors, (3034), 6 states have internal predecessors, (3034), 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 3034
[2024-11-13 15:59:15,232 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-13 15:59:15,247 INFO  L225             Difference]: With dead ends: 18097
[2024-11-13 15:59:15,247 INFO  L226             Difference]: Without dead ends: 12139
[2024-11-13 15:59:15,254 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-13 15:59:15,254 INFO  L432           NwaCegarLoop]: 7137 mSDtfsCounter, 14198 mSDsluCounter, 22290 mSDsCounter, 0 mSdLazyCounter, 5131 mSolverCounterSat, 239 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14198 SdHoareTripleChecker+Valid, 29427 SdHoareTripleChecker+Invalid, 5379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 5131 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.6s IncrementalHoareTripleChecker+Time
[2024-11-13 15:59:15,255 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [14198 Valid, 29427 Invalid, 5379 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [239 Valid, 5131 Invalid, 9 Unknown, 0 Unchecked, 42.6s Time]
[2024-11-13 15:59:15,265 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12139 states.
[2024-11-13 15:59:15,354 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12139 to 6438.
[2024-11-13 15:59:15,361 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6438 states, 6437 states have (on average 1.4961938791362437) internal successors, (9631), 6437 states have internal predecessors, (9631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:59:15,369 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6438 states to 6438 states and 9631 transitions.
[2024-11-13 15:59:15,370 INFO  L78                 Accepts]: Start accepts. Automaton has 6438 states and 9631 transitions. Word has length 3034
[2024-11-13 15:59:15,370 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-13 15:59:15,370 INFO  L471      AbstractCegarLoop]: Abstraction has 6438 states and 9631 transitions.
[2024-11-13 15:59:15,371 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 505.6666666666667) internal successors, (3034), 6 states have internal predecessors, (3034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-13 15:59:15,371 INFO  L276                IsEmpty]: Start isEmpty. Operand 6438 states and 9631 transitions.
[2024-11-13 15:59:15,432 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3036
[2024-11-13 15:59:15,432 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-13 15:59:15,434 INFO  L215           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-13 15:59:15,434 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-13 15:59:15,434 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-13 15:59:15,434 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-13 15:59:15,436 INFO  L85        PathProgramCache]: Analyzing trace with hash -462132396, now seen corresponding path program 1 times
[2024-11-13 15:59:15,436 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-13 15:59:15,436 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523139291]
[2024-11-13 15:59:15,436 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-13 15:59:15,437 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-13 15:59:19,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat