./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bridge.3.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bridge.3.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB --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 6cb166f1b415bd7cb288dfabe219040840e1e43eda487d6e6e2cc1713aaa79ed
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-11-27 20:01:57,057 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-27 20:01:57,193 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-27 20:01:57,202 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-27 20:01:57,202 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-27 20:01:57,253 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-27 20:01:57,255 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-27 20:01:57,255 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-27 20:01:57,256 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-27 20:01:57,257 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-27 20:01:57,258 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-27 20:01:57,258 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-27 20:01:57,259 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-27 20:01:57,259 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-27 20:01:57,259 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-27 20:01:57,259 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-27 20:01:57,259 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-27 20:01:57,260 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-27 20:01:57,261 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-27 20:01:57,261 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-27 20:01:57,261 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-27 20:01:57,261 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-27 20:01:57,261 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-27 20:01:57,261 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-27 20:01:57,262 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-27 20:01:57,262 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-27 20:01:57,262 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-27 20:01:57,262 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-27 20:01:57,262 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-27 20:01:57,262 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-27 20:01:57,263 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-27 20:01:57,263 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-27 20:01:57,263 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-27 20:01:57,264 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-27 20:01:57,264 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-27 20:01:57,264 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-27 20:01:57,265 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-27 20:01:57,265 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-27 20:01:57,265 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-27 20:01:57,265 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-27 20:01:57,265 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-27 20:01:57,265 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-27 20:01:57,265 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-27 20:01:57,265 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-27 20:01:57,266 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-27 20:01:57,266 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_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB
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 -> 6cb166f1b415bd7cb288dfabe219040840e1e43eda487d6e6e2cc1713aaa79ed
[2024-11-27 20:01:57,673 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-27 20:01:57,684 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-27 20:01:57,687 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-27 20:01:57,689 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-27 20:01:57,690 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-27 20:01:57,691 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bridge.3.prop1-back-serstep.c
[2024-11-27 20:02:01,436 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/848af648d/263d4883fc8d4f58aee36463db774466/FLAGb4e065510
[2024-11-27 20:02:02,175 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-27 20:02:02,176 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bridge.3.prop1-back-serstep.c
[2024-11-27 20:02:02,208 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/848af648d/263d4883fc8d4f58aee36463db774466/FLAGb4e065510
[2024-11-27 20:02:02,228 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/data/848af648d/263d4883fc8d4f58aee36463db774466
[2024-11-27 20:02:02,232 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-27 20:02:02,234 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-27 20:02:02,236 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-27 20:02:02,236 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-27 20:02:02,242 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-27 20:02:02,243 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:02:02" (1/1) ...
[2024-11-27 20:02:02,244 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408514dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:02, skipping insertion in model container
[2024-11-27 20:02:02,245 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:02:02" (1/1) ...
[2024-11-27 20:02:02,371 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-27 20:02:02,729 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_397a37a2-7499-483a-b545-27b4304a9d9d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bridge.3.prop1-back-serstep.c[1174,1187]
[2024-11-27 20:02:03,957 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-27 20:02:03,975 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-27 20:02:03,989 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_397a37a2-7499-483a-b545-27b4304a9d9d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.bridge.3.prop1-back-serstep.c[1174,1187]
[2024-11-27 20:02:04,789 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-27 20:02:04,811 INFO  L204         MainTranslator]: Completed translation
[2024-11-27 20:02:04,812 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04 WrapperNode
[2024-11-27 20:02:04,812 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-27 20:02:04,814 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-27 20:02:04,814 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-27 20:02:04,814 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-27 20:02:04,824 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:05,013 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:07,536 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20176
[2024-11-27 20:02:07,537 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-27 20:02:07,538 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-27 20:02:07,538 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-27 20:02:07,538 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-27 20:02:07,555 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:07,556 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:08,383 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:08,813 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].
[2024-11-27 20:02:08,814 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:08,814 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:09,547 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:09,600 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:09,981 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:10,083 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:10,173 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:10,475 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-27 20:02:10,476 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-27 20:02:10,476 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-27 20:02:10,476 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-27 20:02:10,477 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (1/1) ...
[2024-11-27 20:02:10,486 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-27 20:02:10,505 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-27 20:02:10,521 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-27 20:02:10,525 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397a37a2-7499-483a-b545-27b4304a9d9d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-27 20:02:10,558 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-27 20:02:10,558 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-27 20:02:10,558 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-27 20:02:10,558 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-27 20:02:12,138 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-27 20:02:12,141 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-27 20:03:04,965 INFO  L?                        ?]: Removed 11219 outVars from TransFormulas that were not future-live.
[2024-11-27 20:03:04,965 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-27 20:03:05,108 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-27 20:03:05,109 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-27 20:03:05,109 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:03:05 BoogieIcfgContainer
[2024-11-27 20:03:05,109 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-27 20:03:05,116 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-27 20:03:05,116 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-27 20:03:05,124 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-27 20:03:05,124 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:02:02" (1/3) ...
[2024-11-27 20:03:05,125 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fadbb1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:03:05, skipping insertion in model container
[2024-11-27 20:03:05,125 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:02:04" (2/3) ...
[2024-11-27 20:03:05,126 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fadbb1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:03:05, skipping insertion in model container
[2024-11-27 20:03:05,126 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:03:05" (3/3) ...
[2024-11-27 20:03:05,128 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.bridge.3.prop1-back-serstep.c
[2024-11-27 20:03:05,150 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-27 20:03:05,154 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.bridge.3.prop1-back-serstep.c that has 1 procedures, 7102 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-27 20:03:05,431 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-27 20:03:05,453 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;@37dc62a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-27 20:03:05,454 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-27 20:03:05,490 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7102 states, 7100 states have (on average 1.4998591549295774) internal successors, (10649), 7101 states have internal predecessors, (10649), 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)
[2024-11-27 20:03:05,546 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 456
[2024-11-27 20:03:05,546 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-27 20:03:05,547 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-27 20:03:05,548 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-27 20:03:05,560 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-27 20:03:05,562 INFO  L85        PathProgramCache]: Analyzing trace with hash -1943431134, now seen corresponding path program 1 times
[2024-11-27 20:03:05,571 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-27 20:03:05,572 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050299684]
[2024-11-27 20:03:05,572 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 20:03:05,573 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-27 20:03:06,691 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 20:03:10,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-27 20:03:10,295 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-27 20:03:10,299 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050299684]
[2024-11-27 20:03:10,300 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050299684] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-27 20:03:10,300 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-27 20:03:10,301 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-27 20:03:10,303 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266878431]
[2024-11-27 20:03:10,304 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-27 20:03:10,312 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-27 20:03:10,313 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-27 20:03:10,346 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-27 20:03:10,347 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-27 20:03:10,369 INFO  L87              Difference]: Start difference. First operand  has 7102 states, 7100 states have (on average 1.4998591549295774) internal successors, (10649), 7101 states have internal predecessors, (10649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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)
[2024-11-27 20:03:23,238 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-27 20:03:23,239 INFO  L93              Difference]: Finished difference Result 20808 states and 31207 transitions.
[2024-11-27 20:03:23,240 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-27 20:03:23,242 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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 455
[2024-11-27 20:03:23,246 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-27 20:03:23,343 INFO  L225             Difference]: With dead ends: 20808
[2024-11-27 20:03:23,344 INFO  L226             Difference]: Without dead ends: 13880
[2024-11-27 20:03:23,374 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-27 20:03:23,378 INFO  L435           NwaCegarLoop]: 8214 mSDtfsCounter, 10114 mSDsluCounter, 24558 mSDsCounter, 0 mSdLazyCounter, 9549 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10114 SdHoareTripleChecker+Valid, 32772 SdHoareTripleChecker+Invalid, 9550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time
[2024-11-27 20:03:23,381 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10114 Valid, 32772 Invalid, 9550 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 9549 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time]
[2024-11-27 20:03:23,430 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 13880 states.
[2024-11-27 20:03:23,792 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 13880 to 7554.
[2024-11-27 20:03:23,812 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7554 states, 7553 states have (on average 1.499536607970343) internal successors, (11326), 7553 states have internal predecessors, (11326), 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)
[2024-11-27 20:03:23,857 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7554 states to 7554 states and 11326 transitions.
[2024-11-27 20:03:23,861 INFO  L78                 Accepts]: Start accepts. Automaton has 7554 states and 11326 transitions. Word has length 455
[2024-11-27 20:03:23,863 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-27 20:03:23,867 INFO  L471      AbstractCegarLoop]: Abstraction has 7554 states and 11326 transitions.
[2024-11-27 20:03:23,868 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 91.0) internal successors, (455), 5 states have internal predecessors, (455), 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)
[2024-11-27 20:03:23,868 INFO  L276                IsEmpty]: Start isEmpty. Operand 7554 states and 11326 transitions.
[2024-11-27 20:03:23,880 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 458
[2024-11-27 20:03:23,880 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-27 20:03:23,881 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-27 20:03:23,881 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-27 20:03:23,882 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-27 20:03:23,882 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-27 20:03:23,884 INFO  L85        PathProgramCache]: Analyzing trace with hash 1900168959, now seen corresponding path program 1 times
[2024-11-27 20:03:23,884 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-27 20:03:23,884 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21364998]
[2024-11-27 20:03:23,885 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 20:03:23,885 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-27 20:03:24,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 20:03:26,830 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-27 20:03:26,830 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-27 20:03:26,830 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21364998]
[2024-11-27 20:03:26,831 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21364998] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-27 20:03:26,831 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-27 20:03:26,831 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-27 20:03:26,831 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994801517]
[2024-11-27 20:03:26,831 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-27 20:03:26,837 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-27 20:03:26,837 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-27 20:03:26,839 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-27 20:03:26,839 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-27 20:03:26,840 INFO  L87              Difference]: Start difference. First operand 7554 states and 11326 transitions. Second operand  has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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)
[2024-11-27 20:03:27,282 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-27 20:03:27,282 INFO  L93              Difference]: Finished difference Result 7558 states and 11330 transitions.
[2024-11-27 20:03:27,283 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-27 20:03:27,283 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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 457
[2024-11-27 20:03:27,286 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-27 20:03:27,317 INFO  L225             Difference]: With dead ends: 7558
[2024-11-27 20:03:27,317 INFO  L226             Difference]: Without dead ends: 7556
[2024-11-27 20:03:27,321 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-27 20:03:27,322 INFO  L435           NwaCegarLoop]: 10643 mSDtfsCounter, 0 mSDsluCounter, 21280 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31923 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-27 20:03:27,325 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31923 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-27 20:03:27,340 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7556 states.
[2024-11-27 20:03:27,486 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7556 to 7556.
[2024-11-27 20:03:27,509 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7556 states, 7555 states have (on average 1.499404367968233) internal successors, (11328), 7555 states have internal predecessors, (11328), 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)
[2024-11-27 20:03:27,541 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7556 states to 7556 states and 11328 transitions.
[2024-11-27 20:03:27,541 INFO  L78                 Accepts]: Start accepts. Automaton has 7556 states and 11328 transitions. Word has length 457
[2024-11-27 20:03:27,542 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-27 20:03:27,543 INFO  L471      AbstractCegarLoop]: Abstraction has 7556 states and 11328 transitions.
[2024-11-27 20:03:27,543 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 114.25) internal successors, (457), 4 states have internal predecessors, (457), 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)
[2024-11-27 20:03:27,543 INFO  L276                IsEmpty]: Start isEmpty. Operand 7556 states and 11328 transitions.
[2024-11-27 20:03:27,553 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 459
[2024-11-27 20:03:27,554 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-27 20:03:27,554 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-27 20:03:27,555 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-27 20:03:27,555 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-27 20:03:27,556 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-27 20:03:27,556 INFO  L85        PathProgramCache]: Analyzing trace with hash -1222606337, now seen corresponding path program 1 times
[2024-11-27 20:03:27,556 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-27 20:03:27,556 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420080358]
[2024-11-27 20:03:27,557 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 20:03:27,557 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-27 20:03:27,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 20:03:29,060 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-27 20:03:29,061 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-27 20:03:29,061 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420080358]
[2024-11-27 20:03:29,061 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420080358] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-27 20:03:29,061 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-27 20:03:29,062 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-27 20:03:29,062 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011560666]
[2024-11-27 20:03:29,062 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-27 20:03:29,063 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-27 20:03:29,063 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-27 20:03:29,064 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-27 20:03:29,064 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-27 20:03:29,064 INFO  L87              Difference]: Start difference. First operand 7556 states and 11328 transitions. Second operand  has 4 states, 4 states have (on average 114.5) internal successors, (458), 4 states have internal predecessors, (458), 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)
[2024-11-27 20:03:29,282 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-27 20:03:29,282 INFO  L93              Difference]: Finished difference Result 14485 states and 21718 transitions.
[2024-11-27 20:03:29,283 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-27 20:03:29,287 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 114.5) internal successors, (458), 4 states have internal predecessors, (458), 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 458
[2024-11-27 20:03:29,288 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-27 20:03:29,342 INFO  L225             Difference]: With dead ends: 14485
[2024-11-27 20:03:29,342 INFO  L226             Difference]: Without dead ends: 7558
[2024-11-27 20:03:29,352 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-27 20:03:29,353 INFO  L435           NwaCegarLoop]: 10643 mSDtfsCounter, 0 mSDsluCounter, 21276 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31919 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-27 20:03:29,353 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31919 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-27 20:03:29,367 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7558 states.
[2024-11-27 20:03:29,729 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7558 to 7558.
[2024-11-27 20:03:29,746 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7558 states, 7557 states have (on average 1.4992721979621544) internal successors, (11330), 7557 states have internal predecessors, (11330), 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)
[2024-11-27 20:03:29,788 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7558 states to 7558 states and 11330 transitions.
[2024-11-27 20:03:29,789 INFO  L78                 Accepts]: Start accepts. Automaton has 7558 states and 11330 transitions. Word has length 458
[2024-11-27 20:03:29,790 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-27 20:03:29,790 INFO  L471      AbstractCegarLoop]: Abstraction has 7558 states and 11330 transitions.
[2024-11-27 20:03:29,791 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 114.5) internal successors, (458), 4 states have internal predecessors, (458), 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)
[2024-11-27 20:03:29,791 INFO  L276                IsEmpty]: Start isEmpty. Operand 7558 states and 11330 transitions.
[2024-11-27 20:03:29,806 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 460
[2024-11-27 20:03:29,807 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-27 20:03:29,807 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-27 20:03:29,807 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-27 20:03:29,808 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-27 20:03:29,808 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-27 20:03:29,809 INFO  L85        PathProgramCache]: Analyzing trace with hash -344053800, now seen corresponding path program 1 times
[2024-11-27 20:03:29,809 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-27 20:03:29,809 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405237316]
[2024-11-27 20:03:29,809 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 20:03:29,809 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-27 20:03:30,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 20:03:31,535 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-27 20:03:31,535 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-27 20:03:31,535 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405237316]
[2024-11-27 20:03:31,535 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405237316] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-27 20:03:31,536 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-27 20:03:31,536 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-27 20:03:31,536 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859447881]
[2024-11-27 20:03:31,536 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-27 20:03:31,537 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-27 20:03:31,537 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-27 20:03:31,538 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-27 20:03:31,538 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-27 20:03:31,539 INFO  L87              Difference]: Start difference. First operand 7558 states and 11330 transitions. Second operand  has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 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)
[2024-11-27 20:03:31,931 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-27 20:03:31,931 INFO  L93              Difference]: Finished difference Result 20947 states and 31406 transitions.
[2024-11-27 20:03:31,932 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-27 20:03:31,932 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 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 459
[2024-11-27 20:03:31,933 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-27 20:03:31,973 INFO  L225             Difference]: With dead ends: 20947
[2024-11-27 20:03:31,974 INFO  L226             Difference]: Without dead ends: 14018
[2024-11-27 20:03:31,986 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-27 20:03:31,987 INFO  L435           NwaCegarLoop]: 10641 mSDtfsCounter, 10176 mSDsluCounter, 31658 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10176 SdHoareTripleChecker+Valid, 42299 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-27 20:03:31,989 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10176 Valid, 42299 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-27 20:03:32,016 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14018 states.
[2024-11-27 20:03:32,211 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14018 to 7825.
[2024-11-27 20:03:32,228 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7825 states, 7824 states have (on average 1.4991053169734152) internal successors, (11729), 7824 states have internal predecessors, (11729), 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)
[2024-11-27 20:03:32,253 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7825 states to 7825 states and 11729 transitions.
[2024-11-27 20:03:32,253 INFO  L78                 Accepts]: Start accepts. Automaton has 7825 states and 11729 transitions. Word has length 459
[2024-11-27 20:03:32,255 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-27 20:03:32,255 INFO  L471      AbstractCegarLoop]: Abstraction has 7825 states and 11729 transitions.
[2024-11-27 20:03:32,255 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 91.8) internal successors, (459), 5 states have internal predecessors, (459), 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)
[2024-11-27 20:03:32,256 INFO  L276                IsEmpty]: Start isEmpty. Operand 7825 states and 11729 transitions.
[2024-11-27 20:03:32,548 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3923
[2024-11-27 20:03:32,549 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-27 20:03:32,552 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-11-27 20:03:32,553 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-27 20:03:32,553 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-27 20:03:32,556 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-27 20:03:32,559 INFO  L85        PathProgramCache]: Analyzing trace with hash -1445046891, now seen corresponding path program 1 times
[2024-11-27 20:03:32,559 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-27 20:03:32,560 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373449769]
[2024-11-27 20:03:32,561 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 20:03:32,561 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-27 20:03:43,732 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 20:04:01,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 366 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked.
[2024-11-27 20:04:01,128 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-27 20:04:01,128 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373449769]
[2024-11-27 20:04:01,128 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373449769] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-27 20:04:01,129 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-27 20:04:01,130 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-27 20:04:01,130 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54465215]
[2024-11-27 20:04:01,130 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-27 20:04:01,135 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-27 20:04:01,137 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-27 20:04:01,142 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-27 20:04:01,142 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-27 20:04:01,144 INFO  L87              Difference]: Start difference. First operand 7825 states and 11729 transitions. Second operand  has 5 states, 5 states have (on average 712.8) internal successors, (3564), 5 states have internal predecessors, (3564), 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)
[2024-11-27 20:04:01,494 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-27 20:04:01,494 INFO  L93              Difference]: Finished difference Result 14758 states and 22123 transitions.
[2024-11-27 20:04:01,495 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-27 20:04:01,496 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 712.8) internal successors, (3564), 5 states have internal predecessors, (3564), 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 3922
[2024-11-27 20:04:01,506 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-27 20:04:01,531 INFO  L225             Difference]: With dead ends: 14758
[2024-11-27 20:04:01,531 INFO  L226             Difference]: Without dead ends: 7829
[2024-11-27 20:04:01,540 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-27 20:04:01,542 INFO  L435           NwaCegarLoop]: 10643 mSDtfsCounter, 0 mSDsluCounter, 31913 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42556 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-27 20:04:01,543 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42556 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-27 20:04:01,555 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7829 states.
[2024-11-27 20:04:01,709 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7829 to 7825.
[2024-11-27 20:04:01,723 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7825 states, 7824 states have (on average 1.4991053169734152) internal successors, (11729), 7824 states have internal predecessors, (11729), 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)
[2024-11-27 20:04:01,739 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7825 states to 7825 states and 11729 transitions.
[2024-11-27 20:04:01,740 INFO  L78                 Accepts]: Start accepts. Automaton has 7825 states and 11729 transitions. Word has length 3922
[2024-11-27 20:04:01,749 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-27 20:04:01,749 INFO  L471      AbstractCegarLoop]: Abstraction has 7825 states and 11729 transitions.
[2024-11-27 20:04:01,750 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 712.8) internal successors, (3564), 5 states have internal predecessors, (3564), 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)
[2024-11-27 20:04:01,752 INFO  L276                IsEmpty]: Start isEmpty. Operand 7825 states and 11729 transitions.
[2024-11-27 20:04:02,008 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3924
[2024-11-27 20:04:02,008 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-27 20:04:02,016 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-11-27 20:04:02,016 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-27 20:04:02,016 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-27 20:04:02,022 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-27 20:04:02,025 INFO  L85        PathProgramCache]: Analyzing trace with hash -937890935, now seen corresponding path program 1 times
[2024-11-27 20:04:02,026 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-27 20:04:02,026 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265103295]
[2024-11-27 20:04:02,031 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 20:04:02,031 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-27 20:04:14,246 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 20:04:27,255 INFO  L134       CoverageAnalysis]: Checked inductivity of 366 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked.
[2024-11-27 20:04:27,255 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-27 20:04:27,255 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265103295]
[2024-11-27 20:04:27,255 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265103295] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-27 20:04:27,256 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-27 20:04:27,256 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-27 20:04:27,256 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571682059]
[2024-11-27 20:04:27,256 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-27 20:04:27,261 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-27 20:04:27,261 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-27 20:04:27,265 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-27 20:04:27,265 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-27 20:04:27,268 INFO  L87              Difference]: Start difference. First operand 7825 states and 11729 transitions. Second operand  has 5 states, 5 states have (on average 713.4) internal successors, (3567), 5 states have internal predecessors, (3567), 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)
[2024-11-27 20:04:27,495 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-27 20:04:27,495 INFO  L93              Difference]: Finished difference Result 14762 states and 22129 transitions.
[2024-11-27 20:04:27,496 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-27 20:04:27,497 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 713.4) internal successors, (3567), 5 states have internal predecessors, (3567), 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 3923
[2024-11-27 20:04:27,506 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-27 20:04:27,525 INFO  L225             Difference]: With dead ends: 14762
[2024-11-27 20:04:27,525 INFO  L226             Difference]: Without dead ends: 7829
[2024-11-27 20:04:27,534 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-27 20:04:27,535 INFO  L435           NwaCegarLoop]: 10643 mSDtfsCounter, 0 mSDsluCounter, 31913 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42556 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-27 20:04:27,535 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42556 Invalid, 24 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-27 20:04:27,548 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7829 states.
[2024-11-27 20:04:27,678 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7829 to 7827.
[2024-11-27 20:04:27,691 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7827 states, 7826 states have (on average 1.4989777664196269) internal successors, (11731), 7826 states have internal predecessors, (11731), 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)
[2024-11-27 20:04:27,708 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7827 states to 7827 states and 11731 transitions.
[2024-11-27 20:04:27,708 INFO  L78                 Accepts]: Start accepts. Automaton has 7827 states and 11731 transitions. Word has length 3923
[2024-11-27 20:04:27,716 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-27 20:04:27,716 INFO  L471      AbstractCegarLoop]: Abstraction has 7827 states and 11731 transitions.
[2024-11-27 20:04:27,718 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 713.4) internal successors, (3567), 5 states have internal predecessors, (3567), 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)
[2024-11-27 20:04:27,718 INFO  L276                IsEmpty]: Start isEmpty. Operand 7827 states and 11731 transitions.
[2024-11-27 20:04:28,060 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3925
[2024-11-27 20:04:28,061 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-27 20:04:28,064 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-11-27 20:04:28,065 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-27 20:04:28,065 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-27 20:04:28,067 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-27 20:04:28,071 INFO  L85        PathProgramCache]: Analyzing trace with hash 2104348206, now seen corresponding path program 1 times
[2024-11-27 20:04:28,071 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-27 20:04:28,072 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978470484]
[2024-11-27 20:04:28,073 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 20:04:28,074 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-27 20:04:35,139 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 20:04:49,154 INFO  L134       CoverageAnalysis]: Checked inductivity of 366 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked.
[2024-11-27 20:04:49,155 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-27 20:04:49,155 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978470484]
[2024-11-27 20:04:49,155 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978470484] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-27 20:04:49,155 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-27 20:04:49,156 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-27 20:04:49,156 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498040788]
[2024-11-27 20:04:49,156 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-27 20:04:49,160 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-27 20:04:49,160 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-27 20:04:49,163 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-27 20:04:49,164 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-27 20:04:49,165 INFO  L87              Difference]: Start difference. First operand 7827 states and 11731 transitions. Second operand  has 5 states, 5 states have (on average 714.0) internal successors, (3570), 5 states have internal predecessors, (3570), 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)
[2024-11-27 20:04:49,382 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-27 20:04:49,382 INFO  L93              Difference]: Finished difference Result 14770 states and 22139 transitions.
[2024-11-27 20:04:49,383 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-27 20:04:49,384 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 714.0) internal successors, (3570), 5 states have internal predecessors, (3570), 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 3924
[2024-11-27 20:04:49,389 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-27 20:04:49,409 INFO  L225             Difference]: With dead ends: 14770
[2024-11-27 20:04:49,409 INFO  L226             Difference]: Without dead ends: 7831
[2024-11-27 20:04:49,417 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-27 20:04:49,418 INFO  L435           NwaCegarLoop]: 10643 mSDtfsCounter, 0 mSDsluCounter, 31913 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42556 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-27 20:04:49,418 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42556 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-27 20:04:49,432 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7831 states.
[2024-11-27 20:04:49,538 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7831 to 7829.
[2024-11-27 20:04:49,550 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7829 states, 7828 states have (on average 1.4988502810424118) internal successors, (11733), 7828 states have internal predecessors, (11733), 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)
[2024-11-27 20:04:49,564 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7829 states to 7829 states and 11733 transitions.
[2024-11-27 20:04:49,565 INFO  L78                 Accepts]: Start accepts. Automaton has 7829 states and 11733 transitions. Word has length 3924
[2024-11-27 20:04:49,568 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-27 20:04:49,569 INFO  L471      AbstractCegarLoop]: Abstraction has 7829 states and 11733 transitions.
[2024-11-27 20:04:49,570 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 714.0) internal successors, (3570), 5 states have internal predecessors, (3570), 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)
[2024-11-27 20:04:49,570 INFO  L276                IsEmpty]: Start isEmpty. Operand 7829 states and 11733 transitions.
[2024-11-27 20:04:50,020 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3926
[2024-11-27 20:04:50,020 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-27 20:04:50,023 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-11-27 20:04:50,023 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-27 20:04:50,024 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-27 20:04:50,026 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-27 20:04:50,028 INFO  L85        PathProgramCache]: Analyzing trace with hash -2121161872, now seen corresponding path program 1 times
[2024-11-27 20:04:50,028 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-27 20:04:50,029 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904573506]
[2024-11-27 20:04:50,031 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 20:04:50,031 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-27 20:04:56,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat