./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c --full-output --architecture 32bit


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


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_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 740290dda5575272bb23cb8f59f476bbd4d0eb4eae1c4b42019e214336dbab38
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 15:44:45,031 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-12-02 15:44:45,084 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 15:44:45,089 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 15:44:45,089 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 15:44:45,108 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 15:44:45,109 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 15:44:45,109 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 15:44:45,109 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 15:44:45,109 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-12-02 15:44:45,110 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 15:44:45,110 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 15:44:45,110 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 15:44:45,110 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-12-02 15:44:45,110 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-12-02 15:44:45,110 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 15:44:45,111 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-12-02 15:44:45,111 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-12-02 15:44:45,111 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-12-02 15:44:45,111 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-12-02 15:44:45,111 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-12-02 15:44:45,111 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 15:44:45,111 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 15:44:45,111 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 15:44:45,111 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-12-02 15:44:45,111 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-12-02 15:44:45,112 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 15:44:45,112 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-12-02 15:44:45,112 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 15:44:45,112 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 15:44:45,112 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 15:44:45,112 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 15:44:45,112 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:44:45,112 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 15:44:45,112 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 15:44:45,113 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 15:44:45,113 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 15:44:45,113 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:44:45,113 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 15:44:45,113 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 15:44:45,113 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-12-02 15:44:45,113 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 15:44:45,113 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-12-02 15:44:45,113 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 15:44:45,114 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 15:44:45,114 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 15:44:45,114 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 15:44:45,114 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 15:44:45,114 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_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 740290dda5575272bb23cb8f59f476bbd4d0eb4eae1c4b42019e214336dbab38
[2024-12-02 15:44:45,317 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 15:44:45,326 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 15:44:45,328 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 15:44:45,330 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-12-02 15:44:45,330 INFO  L274        PluginConnector]: CDTParser initialized
[2024-12-02 15:44:45,331 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c
[2024-12-02 15:44:48,021 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/data/f0f8d12c9/6fe3580a25e54e12949e3cffd94d53f0/FLAG6947a38b4
[2024-12-02 15:44:48,233 INFO  L384              CDTParser]: Found 1 translation units.
[2024-12-02 15:44:48,233 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c
[2024-12-02 15:44:48,243 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/data/f0f8d12c9/6fe3580a25e54e12949e3cffd94d53f0/FLAG6947a38b4
[2024-12-02 15:44:48,257 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/data/f0f8d12c9/6fe3580a25e54e12949e3cffd94d53f0
[2024-12-02 15:44:48,260 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 15:44:48,261 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 15:44:48,262 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 15:44:48,263 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 15:44:48,266 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 15:44:48,266 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,267 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3242b387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48, skipping insertion in model container
[2024-12-02 15:44:48,267 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,290 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-12-02 15:44:48,478 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_1e651681-76a3-4ec0-8619-f04631ba8a71/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[6322,6335]
[2024-12-02 15:44:48,510 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 15:44:48,523 INFO  L200         MainTranslator]: Completed pre-run
[2024-12-02 15:44:48,560 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_1e651681-76a3-4ec0-8619-f04631ba8a71/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c[6322,6335]
[2024-12-02 15:44:48,580 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 15:44:48,597 INFO  L204         MainTranslator]: Completed translation
[2024-12-02 15:44:48,598 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48 WrapperNode
[2024-12-02 15:44:48,598 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 15:44:48,599 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 15:44:48,599 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 15:44:48,599 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 15:44:48,605 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,615 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,641 INFO  L138                Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 578
[2024-12-02 15:44:48,642 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 15:44:48,642 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 15:44:48,642 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 15:44:48,642 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 15:44:48,651 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,651 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,654 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,670 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-02 15:44:48,670 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,670 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,677 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,679 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,683 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,685 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,687 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,690 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 15:44:48,691 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 15:44:48,691 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 15:44:48,691 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-12-02 15:44:48,692 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (1/1) ...
[2024-12-02 15:44:48,697 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 15:44:48,708 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 15:44:48,720 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 15:44:48,723 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 15:44:48,747 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 15:44:48,747 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 15:44:48,747 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 15:44:48,747 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 15:44:48,850 INFO  L234             CfgBuilder]: Building ICFG
[2024-12-02 15:44:48,851 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 15:44:49,314 INFO  L?                        ?]: Removed 52 outVars from TransFormulas that were not future-live.
[2024-12-02 15:44:49,314 INFO  L283             CfgBuilder]: Performing block encoding
[2024-12-02 15:44:49,327 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 15:44:49,327 INFO  L312             CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 15:44:49,327 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:44:49 BoogieIcfgContainer
[2024-12-02 15:44:49,328 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 15:44:49,340 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 15:44:49,340 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 15:44:49,343 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-12-02 15:44:49,343 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:44:48" (1/3) ...
[2024-12-02 15:44:49,344 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89b45d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:44:49, skipping insertion in model container
[2024-12-02 15:44:49,344 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:44:48" (2/3) ...
[2024-12-02 15:44:49,344 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@89b45d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:44:49, skipping insertion in model container
[2024-12-02 15:44:49,344 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:44:49" (3/3) ...
[2024-12-02 15:44:49,346 INFO  L128   eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c
[2024-12-02 15:44:49,356 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 15:44:49,359 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr-var-start-time.5.1.ufo.BOUNDED-10.pals.c.v+cfa-reducer.c that has 1 procedures, 136 locations, 1 initial locations, 0 loop locations, and 1 error locations.
[2024-12-02 15:44:49,403 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 15:44:49,413 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;@23d0f0f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 15:44:49,413 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 15:44:49,416 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 136 states, 134 states have (on average 1.7014925373134329) internal successors, (228), 135 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:49,422 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 61
[2024-12-02 15:44:49,422 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:44:49,423 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]
[2024-12-02 15:44:49,423 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:44:49,427 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:44:49,427 INFO  L85        PathProgramCache]: Analyzing trace with hash -793823884, now seen corresponding path program 1 times
[2024-12-02 15:44:49,432 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:44:49,432 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464446079]
[2024-12-02 15:44:49,433 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:49,433 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:44:49,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:49,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:49,761 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:44:49,761 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464446079]
[2024-12-02 15:44:49,762 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464446079] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:44:49,762 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:44:49,762 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:44:49,763 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516078588]
[2024-12-02 15:44:49,764 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:44:49,767 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:44:49,767 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:44:49,780 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:44:49,781 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:49,783 INFO  L87              Difference]: Start difference. First operand  has 136 states, 134 states have (on average 1.7014925373134329) internal successors, (228), 135 states have internal predecessors, (228), 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 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:49,846 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:44:49,846 INFO  L93              Difference]: Finished difference Result 322 states and 522 transitions.
[2024-12-02 15:44:49,848 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:44:49,849 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60
[2024-12-02 15:44:49,849 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:44:49,856 INFO  L225             Difference]: With dead ends: 322
[2024-12-02 15:44:49,856 INFO  L226             Difference]: Without dead ends: 215
[2024-12-02 15:44:49,858 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:49,861 INFO  L435           NwaCegarLoop]: 355 mSDtfsCounter, 174 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:44:49,862 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 504 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:44:49,873 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 215 states.
[2024-12-02 15:44:49,891 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213.
[2024-12-02 15:44:49,892 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 213 states, 212 states have (on average 1.5047169811320755) internal successors, (319), 212 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:49,897 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 319 transitions.
[2024-12-02 15:44:49,898 INFO  L78                 Accepts]: Start accepts. Automaton has 213 states and 319 transitions. Word has length 60
[2024-12-02 15:44:49,898 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:44:49,899 INFO  L471      AbstractCegarLoop]: Abstraction has 213 states and 319 transitions.
[2024-12-02 15:44:49,899 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:49,899 INFO  L276                IsEmpty]: Start isEmpty. Operand 213 states and 319 transitions.
[2024-12-02 15:44:49,900 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2024-12-02 15:44:49,900 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:44:49,900 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]
[2024-12-02 15:44:49,901 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 15:44:49,901 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:44:49,901 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:44:49,901 INFO  L85        PathProgramCache]: Analyzing trace with hash -1200786689, now seen corresponding path program 1 times
[2024-12-02 15:44:49,902 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:44:49,902 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095538561]
[2024-12-02 15:44:49,902 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:49,902 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:44:49,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:50,046 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:50,046 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:44:50,046 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095538561]
[2024-12-02 15:44:50,046 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095538561] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:44:50,046 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:44:50,046 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:44:50,047 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841920686]
[2024-12-02 15:44:50,047 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:44:50,048 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:44:50,048 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:44:50,048 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:44:50,049 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:50,049 INFO  L87              Difference]: Start difference. First operand 213 states and 319 transitions. Second operand  has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,089 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:44:50,089 INFO  L93              Difference]: Finished difference Result 537 states and 835 transitions.
[2024-12-02 15:44:50,089 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:44:50,089 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 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 61
[2024-12-02 15:44:50,090 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:44:50,092 INFO  L225             Difference]: With dead ends: 537
[2024-12-02 15:44:50,092 INFO  L226             Difference]: Without dead ends: 359
[2024-12-02 15:44:50,092 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:50,093 INFO  L435           NwaCegarLoop]: 298 mSDtfsCounter, 139 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:44:50,093 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 443 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:44:50,095 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 359 states.
[2024-12-02 15:44:50,109 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 357.
[2024-12-02 15:44:50,109 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 357 states, 356 states have (on average 1.5393258426966292) internal successors, (548), 356 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,111 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 548 transitions.
[2024-12-02 15:44:50,111 INFO  L78                 Accepts]: Start accepts. Automaton has 357 states and 548 transitions. Word has length 61
[2024-12-02 15:44:50,112 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:44:50,112 INFO  L471      AbstractCegarLoop]: Abstraction has 357 states and 548 transitions.
[2024-12-02 15:44:50,112 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,112 INFO  L276                IsEmpty]: Start isEmpty. Operand 357 states and 548 transitions.
[2024-12-02 15:44:50,113 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 63
[2024-12-02 15:44:50,113 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:44:50,113 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]
[2024-12-02 15:44:50,113 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 15:44:50,114 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:44:50,114 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:44:50,114 INFO  L85        PathProgramCache]: Analyzing trace with hash -1872640227, now seen corresponding path program 1 times
[2024-12-02 15:44:50,114 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:44:50,114 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959838327]
[2024-12-02 15:44:50,114 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:50,114 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:44:50,149 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:50,227 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:50,227 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:44:50,227 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959838327]
[2024-12-02 15:44:50,227 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959838327] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:44:50,227 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:44:50,227 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:44:50,227 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194417714]
[2024-12-02 15:44:50,227 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:44:50,228 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:44:50,228 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:44:50,228 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:44:50,228 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:50,228 INFO  L87              Difference]: Start difference. First operand 357 states and 548 transitions. Second operand  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,264 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:44:50,264 INFO  L93              Difference]: Finished difference Result 937 states and 1470 transitions.
[2024-12-02 15:44:50,265 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:44:50,265 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62
[2024-12-02 15:44:50,265 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:44:50,268 INFO  L225             Difference]: With dead ends: 937
[2024-12-02 15:44:50,268 INFO  L226             Difference]: Without dead ends: 615
[2024-12-02 15:44:50,269 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:50,270 INFO  L435           NwaCegarLoop]: 279 mSDtfsCounter, 134 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:44:50,270 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 428 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:44:50,271 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 615 states.
[2024-12-02 15:44:50,291 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 613.
[2024-12-02 15:44:50,292 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 613 states, 612 states have (on average 1.5555555555555556) internal successors, (952), 612 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,295 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 952 transitions.
[2024-12-02 15:44:50,295 INFO  L78                 Accepts]: Start accepts. Automaton has 613 states and 952 transitions. Word has length 62
[2024-12-02 15:44:50,296 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:44:50,296 INFO  L471      AbstractCegarLoop]: Abstraction has 613 states and 952 transitions.
[2024-12-02 15:44:50,296 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,296 INFO  L276                IsEmpty]: Start isEmpty. Operand 613 states and 952 transitions.
[2024-12-02 15:44:50,297 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2024-12-02 15:44:50,297 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:44:50,297 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]
[2024-12-02 15:44:50,297 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 15:44:50,297 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:44:50,298 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:44:50,298 INFO  L85        PathProgramCache]: Analyzing trace with hash -562045070, now seen corresponding path program 1 times
[2024-12-02 15:44:50,298 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:44:50,298 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917870810]
[2024-12-02 15:44:50,298 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:50,298 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:44:50,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:50,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:50,397 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:44:50,397 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917870810]
[2024-12-02 15:44:50,397 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917870810] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:44:50,397 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:44:50,397 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:44:50,397 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582651922]
[2024-12-02 15:44:50,397 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:44:50,398 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:44:50,398 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:44:50,398 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:44:50,398 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:50,399 INFO  L87              Difference]: Start difference. First operand 613 states and 952 transitions. Second operand  has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,429 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:44:50,430 INFO  L93              Difference]: Finished difference Result 1641 states and 2578 transitions.
[2024-12-02 15:44:50,430 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:44:50,430 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63
[2024-12-02 15:44:50,431 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:44:50,434 INFO  L225             Difference]: With dead ends: 1641
[2024-12-02 15:44:50,435 INFO  L226             Difference]: Without dead ends: 1063
[2024-12-02 15:44:50,435 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:50,436 INFO  L435           NwaCegarLoop]: 260 mSDtfsCounter, 129 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:44:50,437 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 413 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:44:50,438 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1063 states.
[2024-12-02 15:44:50,470 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1061.
[2024-12-02 15:44:50,472 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1061 states, 1060 states have (on average 1.558490566037736) internal successors, (1652), 1060 states have internal predecessors, (1652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,477 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1652 transitions.
[2024-12-02 15:44:50,478 INFO  L78                 Accepts]: Start accepts. Automaton has 1061 states and 1652 transitions. Word has length 63
[2024-12-02 15:44:50,478 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:44:50,478 INFO  L471      AbstractCegarLoop]: Abstraction has 1061 states and 1652 transitions.
[2024-12-02 15:44:50,478 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,478 INFO  L276                IsEmpty]: Start isEmpty. Operand 1061 states and 1652 transitions.
[2024-12-02 15:44:50,479 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-12-02 15:44:50,479 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:44:50,479 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]
[2024-12-02 15:44:50,479 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 15:44:50,480 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:44:50,480 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:44:50,480 INFO  L85        PathProgramCache]: Analyzing trace with hash -1925116710, now seen corresponding path program 1 times
[2024-12-02 15:44:50,480 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:44:50,480 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220037141]
[2024-12-02 15:44:50,480 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:50,481 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:44:50,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:50,569 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:50,570 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:44:50,570 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220037141]
[2024-12-02 15:44:50,570 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220037141] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:44:50,570 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:44:50,570 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:44:50,570 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24238747]
[2024-12-02 15:44:50,570 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:44:50,570 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:44:50,570 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:44:50,571 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:44:50,571 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:50,571 INFO  L87              Difference]: Start difference. First operand 1061 states and 1652 transitions. Second operand  has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,611 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:44:50,611 INFO  L93              Difference]: Finished difference Result 2857 states and 4470 transitions.
[2024-12-02 15:44:50,611 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:44:50,612 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64
[2024-12-02 15:44:50,612 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:44:50,618 INFO  L225             Difference]: With dead ends: 2857
[2024-12-02 15:44:50,618 INFO  L226             Difference]: Without dead ends: 1831
[2024-12-02 15:44:50,620 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:50,620 INFO  L435           NwaCegarLoop]: 241 mSDtfsCounter, 124 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:44:50,621 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 398 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:44:50,623 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1831 states.
[2024-12-02 15:44:50,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1829.
[2024-12-02 15:44:50,662 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1829 states, 1828 states have (on average 1.5514223194748358) internal successors, (2836), 1828 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,670 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2836 transitions.
[2024-12-02 15:44:50,670 INFO  L78                 Accepts]: Start accepts. Automaton has 1829 states and 2836 transitions. Word has length 64
[2024-12-02 15:44:50,670 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:44:50,670 INFO  L471      AbstractCegarLoop]: Abstraction has 1829 states and 2836 transitions.
[2024-12-02 15:44:50,671 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:50,671 INFO  L276                IsEmpty]: Start isEmpty. Operand 1829 states and 2836 transitions.
[2024-12-02 15:44:50,671 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 66
[2024-12-02 15:44:50,672 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:44:50,672 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]
[2024-12-02 15:44:50,672 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 15:44:50,672 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:44:50,672 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:44:50,672 INFO  L85        PathProgramCache]: Analyzing trace with hash 210559993, now seen corresponding path program 1 times
[2024-12-02 15:44:50,672 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:44:50,673 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808881266]
[2024-12-02 15:44:50,673 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:50,673 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:44:50,699 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:50,874 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:50,874 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:44:50,875 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808881266]
[2024-12-02 15:44:50,875 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808881266] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:44:50,875 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:44:50,875 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 15:44:50,875 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764274145]
[2024-12-02 15:44:50,875 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:44:50,875 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 15:44:50,875 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:44:50,876 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 15:44:50,876 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-12-02 15:44:50,876 INFO  L87              Difference]: Start difference. First operand 1829 states and 2836 transitions. Second operand  has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:51,140 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:44:51,140 INFO  L93              Difference]: Finished difference Result 12593 states and 19642 transitions.
[2024-12-02 15:44:51,142 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-12-02 15:44:51,142 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 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 65
[2024-12-02 15:44:51,142 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:44:51,187 INFO  L225             Difference]: With dead ends: 12593
[2024-12-02 15:44:51,187 INFO  L226             Difference]: Without dead ends: 10799
[2024-12-02 15:44:51,192 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2024-12-02 15:44:51,193 INFO  L435           NwaCegarLoop]: 187 mSDtfsCounter, 2059 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:44:51,193 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [2059 Valid, 1257 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:44:51,205 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10799 states.
[2024-12-02 15:44:51,369 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10799 to 3621.
[2024-12-02 15:44:51,377 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3621 states, 3620 states have (on average 1.5392265193370165) internal successors, (5572), 3620 states have internal predecessors, (5572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:51,395 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 5572 transitions.
[2024-12-02 15:44:51,395 INFO  L78                 Accepts]: Start accepts. Automaton has 3621 states and 5572 transitions. Word has length 65
[2024-12-02 15:44:51,395 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:44:51,395 INFO  L471      AbstractCegarLoop]: Abstraction has 3621 states and 5572 transitions.
[2024-12-02 15:44:51,395 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 7 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:51,395 INFO  L276                IsEmpty]: Start isEmpty. Operand 3621 states and 5572 transitions.
[2024-12-02 15:44:51,396 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 67
[2024-12-02 15:44:51,396 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:44:51,396 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]
[2024-12-02 15:44:51,396 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 15:44:51,397 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:44:51,397 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:44:51,397 INFO  L85        PathProgramCache]: Analyzing trace with hash -2082031049, now seen corresponding path program 1 times
[2024-12-02 15:44:51,397 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:44:51,397 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951233679]
[2024-12-02 15:44:51,397 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:51,398 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:44:51,443 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:51,700 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:51,700 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:44:51,700 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951233679]
[2024-12-02 15:44:51,700 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951233679] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:44:51,700 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:44:51,700 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 15:44:51,700 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244974809]
[2024-12-02 15:44:51,701 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:44:51,701 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 15:44:51,701 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:44:51,701 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 15:44:51,701 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-12-02 15:44:51,702 INFO  L87              Difference]: Start difference. First operand 3621 states and 5572 transitions. Second operand  has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:51,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:44:51,959 INFO  L93              Difference]: Finished difference Result 18831 states and 28777 transitions.
[2024-12-02 15:44:51,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-12-02 15:44:51,960 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 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 66
[2024-12-02 15:44:51,960 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:44:52,012 INFO  L225             Difference]: With dead ends: 18831
[2024-12-02 15:44:52,012 INFO  L226             Difference]: Without dead ends: 15245
[2024-12-02 15:44:52,018 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2024-12-02 15:44:52,019 INFO  L435           NwaCegarLoop]: 529 mSDtfsCounter, 624 mSDsluCounter, 784 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:44:52,019 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 1313 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:44:52,035 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15245 states.
[2024-12-02 15:44:52,280 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15245 to 15237.
[2024-12-02 15:44:52,305 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 15237 states, 15236 states have (on average 1.520871619847729) internal successors, (23172), 15236 states have internal predecessors, (23172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:52,356 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 15237 states to 15237 states and 23172 transitions.
[2024-12-02 15:44:52,357 INFO  L78                 Accepts]: Start accepts. Automaton has 15237 states and 23172 transitions. Word has length 66
[2024-12-02 15:44:52,357 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:44:52,357 INFO  L471      AbstractCegarLoop]: Abstraction has 15237 states and 23172 transitions.
[2024-12-02 15:44:52,357 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:52,357 INFO  L276                IsEmpty]: Start isEmpty. Operand 15237 states and 23172 transitions.
[2024-12-02 15:44:52,358 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-12-02 15:44:52,358 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:44:52,358 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]
[2024-12-02 15:44:52,359 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 15:44:52,359 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:44:52,359 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:44:52,359 INFO  L85        PathProgramCache]: Analyzing trace with hash 254256256, now seen corresponding path program 1 times
[2024-12-02 15:44:52,360 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:44:52,360 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877701039]
[2024-12-02 15:44:52,360 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:52,360 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:44:52,395 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:52,518 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:52,518 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:44:52,518 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877701039]
[2024-12-02 15:44:52,518 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877701039] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:44:52,518 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:44:52,518 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 15:44:52,518 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202748288]
[2024-12-02 15:44:52,519 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:44:52,519 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:44:52,519 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:44:52,519 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:44:52,519 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:44:52,520 INFO  L87              Difference]: Start difference. First operand 15237 states and 23172 transitions. Second operand  has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:52,798 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:44:52,798 INFO  L93              Difference]: Finished difference Result 45641 states and 69446 transitions.
[2024-12-02 15:44:52,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:44:52,799 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 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 68
[2024-12-02 15:44:52,799 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:44:52,842 INFO  L225             Difference]: With dead ends: 45641
[2024-12-02 15:44:52,842 INFO  L226             Difference]: Without dead ends: 30439
[2024-12-02 15:44:52,855 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-12-02 15:44:52,856 INFO  L435           NwaCegarLoop]: 118 mSDtfsCounter, 828 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 15:44:52,856 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 212 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 15:44:52,879 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30439 states.
[2024-12-02 15:44:53,165 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30439 to 30437.
[2024-12-02 15:44:53,203 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30437 states, 30436 states have (on average 1.5120252332763833) internal successors, (46020), 30436 states have internal predecessors, (46020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:53,321 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30437 states to 30437 states and 46020 transitions.
[2024-12-02 15:44:53,321 INFO  L78                 Accepts]: Start accepts. Automaton has 30437 states and 46020 transitions. Word has length 68
[2024-12-02 15:44:53,321 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:44:53,322 INFO  L471      AbstractCegarLoop]: Abstraction has 30437 states and 46020 transitions.
[2024-12-02 15:44:53,322 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:53,322 INFO  L276                IsEmpty]: Start isEmpty. Operand 30437 states and 46020 transitions.
[2024-12-02 15:44:53,323 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-12-02 15:44:53,323 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:44:53,323 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]
[2024-12-02 15:44:53,324 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 15:44:53,324 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:44:53,324 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:44:53,324 INFO  L85        PathProgramCache]: Analyzing trace with hash -1142699675, now seen corresponding path program 1 times
[2024-12-02 15:44:53,324 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:44:53,325 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982975920]
[2024-12-02 15:44:53,325 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:53,325 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:44:53,368 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:53,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:53,744 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:44:53,744 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982975920]
[2024-12-02 15:44:53,744 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982975920] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:44:53,745 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:44:53,745 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 15:44:53,745 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496205377]
[2024-12-02 15:44:53,745 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:44:53,745 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 15:44:53,745 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:44:53,746 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 15:44:53,746 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:44:53,746 INFO  L87              Difference]: Start difference. First operand 30437 states and 46020 transitions. Second operand  has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:53,847 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:44:53,847 INFO  L93              Difference]: Finished difference Result 31719 states and 47941 transitions.
[2024-12-02 15:44:53,848 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 15:44:53,848 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 68
[2024-12-02 15:44:53,848 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:44:53,916 INFO  L225             Difference]: With dead ends: 31719
[2024-12-02 15:44:53,916 INFO  L226             Difference]: Without dead ends: 31717
[2024-12-02 15:44:53,924 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 15:44:53,925 INFO  L435           NwaCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:44:53,925 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 741 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:44:53,942 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31717 states.
[2024-12-02 15:44:54,284 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31717 to 31717.
[2024-12-02 15:44:54,310 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31717 states, 31716 states have (on average 1.4913608273426662) internal successors, (47300), 31716 states have internal predecessors, (47300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:54,347 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31717 states to 31717 states and 47300 transitions.
[2024-12-02 15:44:54,347 INFO  L78                 Accepts]: Start accepts. Automaton has 31717 states and 47300 transitions. Word has length 68
[2024-12-02 15:44:54,347 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:44:54,348 INFO  L471      AbstractCegarLoop]: Abstraction has 31717 states and 47300 transitions.
[2024-12-02 15:44:54,348 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:54,348 INFO  L276                IsEmpty]: Start isEmpty. Operand 31717 states and 47300 transitions.
[2024-12-02 15:44:54,348 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 70
[2024-12-02 15:44:54,348 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:44:54,348 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]
[2024-12-02 15:44:54,349 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 15:44:54,349 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:44:54,349 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:44:54,349 INFO  L85        PathProgramCache]: Analyzing trace with hash -1053378469, now seen corresponding path program 1 times
[2024-12-02 15:44:54,349 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:44:54,349 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133197790]
[2024-12-02 15:44:54,349 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:54,350 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:44:54,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:54,403 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:54,404 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:44:54,404 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133197790]
[2024-12-02 15:44:54,404 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133197790] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:44:54,404 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:44:54,404 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:44:54,404 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751441400]
[2024-12-02 15:44:54,404 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:44:54,404 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:44:54,404 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:44:54,405 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:44:54,405 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:54,405 INFO  L87              Difference]: Start difference. First operand 31717 states and 47300 transitions. Second operand  has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:54,572 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:44:54,572 INFO  L93              Difference]: Finished difference Result 70715 states and 105272 transitions.
[2024-12-02 15:44:54,572 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:44:54,572 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 69
[2024-12-02 15:44:54,572 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:44:54,605 INFO  L225             Difference]: With dead ends: 70715
[2024-12-02 15:44:54,605 INFO  L226             Difference]: Without dead ends: 39033
[2024-12-02 15:44:54,623 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:44:54,623 INFO  L435           NwaCegarLoop]: 232 mSDtfsCounter, 112 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:44:54,624 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 385 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:44:54,640 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39033 states.
[2024-12-02 15:44:55,066 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39033 to 39031.
[2024-12-02 15:44:55,097 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39031 states, 39030 states have (on average 1.4825006405329233) internal successors, (57862), 39030 states have internal predecessors, (57862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:55,159 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39031 states to 39031 states and 57862 transitions.
[2024-12-02 15:44:55,159 INFO  L78                 Accepts]: Start accepts. Automaton has 39031 states and 57862 transitions. Word has length 69
[2024-12-02 15:44:55,160 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:44:55,160 INFO  L471      AbstractCegarLoop]: Abstraction has 39031 states and 57862 transitions.
[2024-12-02 15:44:55,160 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:55,160 INFO  L276                IsEmpty]: Start isEmpty. Operand 39031 states and 57862 transitions.
[2024-12-02 15:44:55,172 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2024-12-02 15:44:55,172 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:44:55,172 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-12-02 15:44:55,172 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 15:44:55,172 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:44:55,172 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:44:55,173 INFO  L85        PathProgramCache]: Analyzing trace with hash -212554062, now seen corresponding path program 1 times
[2024-12-02 15:44:55,173 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:44:55,173 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752783954]
[2024-12-02 15:44:55,173 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:55,173 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:44:55,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:55,378 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-12-02 15:44:55,378 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:44:55,378 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752783954]
[2024-12-02 15:44:55,378 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752783954] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 15:44:55,378 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389124221]
[2024-12-02 15:44:55,378 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:44:55,378 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 15:44:55,378 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 15:44:55,380 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 15:44:55,383 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 15:44:55,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:44:55,557 INFO  L256         TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-12-02 15:44:55,563 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 15:44:56,284 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:56,284 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 15:44:57,045 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:44:57,045 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389124221] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 15:44:57,045 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 15:44:57,046 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8, 7] total 15
[2024-12-02 15:44:57,046 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416196102]
[2024-12-02 15:44:57,046 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 15:44:57,046 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2024-12-02 15:44:57,046 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:44:57,047 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2024-12-02 15:44:57,047 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210
[2024-12-02 15:44:57,047 INFO  L87              Difference]: Start difference. First operand 39031 states and 57862 transitions. Second operand  has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:44:58,026 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:44:58,026 INFO  L93              Difference]: Finished difference Result 201706 states and 300292 transitions.
[2024-12-02 15:44:58,027 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2024-12-02 15:44:58,027 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 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 94
[2024-12-02 15:44:58,027 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:44:58,190 INFO  L225             Difference]: With dead ends: 201706
[2024-12-02 15:44:58,190 INFO  L226             Difference]: Without dead ends: 162712
[2024-12-02 15:44:58,228 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=217, Invalid=485, Unknown=0, NotChecked=0, Total=702
[2024-12-02 15:44:58,228 INFO  L435           NwaCegarLoop]: 280 mSDtfsCounter, 4283 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4283 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-12-02 15:44:58,229 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4283 Valid, 2286 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-12-02 15:44:58,315 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 162712 states.
[2024-12-02 15:44:59,893 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 162712 to 140932.
[2024-12-02 15:45:00,011 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 140932 states, 140931 states have (on average 1.4763749636346866) internal successors, (208067), 140931 states have internal predecessors, (208067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:00,219 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 140932 states to 140932 states and 208067 transitions.
[2024-12-02 15:45:00,219 INFO  L78                 Accepts]: Start accepts. Automaton has 140932 states and 208067 transitions. Word has length 94
[2024-12-02 15:45:00,220 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:45:00,220 INFO  L471      AbstractCegarLoop]: Abstraction has 140932 states and 208067 transitions.
[2024-12-02 15:45:00,220 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 15 states have (on average 18.0) internal successors, (270), 15 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:00,220 INFO  L276                IsEmpty]: Start isEmpty. Operand 140932 states and 208067 transitions.
[2024-12-02 15:45:00,227 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-12-02 15:45:00,227 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:45:00,227 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-12-02 15:45:00,236 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 15:45:00,427 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e651681-76a3-4ec0-8619-f04631ba8a71/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-12-02 15:45:00,428 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:45:00,428 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:00,428 INFO  L85        PathProgramCache]: Analyzing trace with hash 1806159814, now seen corresponding path program 1 times
[2024-12-02 15:45:00,429 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:00,429 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472080551]
[2024-12-02 15:45:00,429 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:00,429 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:00,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:00,539 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:45:00,539 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:00,539 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472080551]
[2024-12-02 15:45:00,539 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472080551] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:00,539 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:00,540 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:45:00,540 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153239468]
[2024-12-02 15:45:00,540 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:00,540 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:45:00,540 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:00,541 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:45:00,541 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:00,541 INFO  L87              Difference]: Start difference. First operand 140932 states and 208067 transitions. Second operand  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:01,080 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:45:01,080 INFO  L93              Difference]: Finished difference Result 190019 states and 280223 transitions.
[2024-12-02 15:45:01,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:45:01,081 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95
[2024-12-02 15:45:01,081 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:45:01,232 INFO  L225             Difference]: With dead ends: 190019
[2024-12-02 15:45:01,232 INFO  L226             Difference]: Without dead ends: 143619
[2024-12-02 15:45:01,273 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:01,274 INFO  L435           NwaCegarLoop]: 266 mSDtfsCounter, 117 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:45:01,274 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 442 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:45:01,338 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 143619 states.
[2024-12-02 15:45:02,741 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 143619 to 140975.
[2024-12-02 15:45:02,814 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 140975 states, 140974 states have (on average 1.4561408486671301) internal successors, (205278), 140974 states have internal predecessors, (205278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:03,003 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 140975 states to 140975 states and 205278 transitions.
[2024-12-02 15:45:03,003 INFO  L78                 Accepts]: Start accepts. Automaton has 140975 states and 205278 transitions. Word has length 95
[2024-12-02 15:45:03,004 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:45:03,004 INFO  L471      AbstractCegarLoop]: Abstraction has 140975 states and 205278 transitions.
[2024-12-02 15:45:03,004 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:03,004 INFO  L276                IsEmpty]: Start isEmpty. Operand 140975 states and 205278 transitions.
[2024-12-02 15:45:03,007 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-12-02 15:45:03,008 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:45:03,008 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-12-02 15:45:03,008 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 15:45:03,008 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:45:03,008 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:03,008 INFO  L85        PathProgramCache]: Analyzing trace with hash -612124705, now seen corresponding path program 1 times
[2024-12-02 15:45:03,008 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:03,008 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486930342]
[2024-12-02 15:45:03,008 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:03,008 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:03,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:03,061 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:45:03,061 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:03,061 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486930342]
[2024-12-02 15:45:03,061 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486930342] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:03,061 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:03,061 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:45:03,061 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055414029]
[2024-12-02 15:45:03,061 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:03,062 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:45:03,062 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:03,062 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:45:03,062 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:03,063 INFO  L87              Difference]: Start difference. First operand 140975 states and 205278 transitions. Second operand  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:03,806 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:45:03,806 INFO  L93              Difference]: Finished difference Result 249006 states and 363159 transitions.
[2024-12-02 15:45:03,806 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:45:03,806 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95
[2024-12-02 15:45:03,807 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:45:04,042 INFO  L225             Difference]: With dead ends: 249006
[2024-12-02 15:45:04,043 INFO  L226             Difference]: Without dead ends: 179995
[2024-12-02 15:45:04,079 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:04,079 INFO  L435           NwaCegarLoop]: 247 mSDtfsCounter, 116 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:45:04,080 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 423 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:45:04,168 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 179995 states.
[2024-12-02 15:45:05,752 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 179995 to 173637.
[2024-12-02 15:45:05,978 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 173637 states, 173636 states have (on average 1.4407323366122233) internal successors, (250163), 173636 states have internal predecessors, (250163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:06,150 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 173637 states to 173637 states and 250163 transitions.
[2024-12-02 15:45:06,150 INFO  L78                 Accepts]: Start accepts. Automaton has 173637 states and 250163 transitions. Word has length 95
[2024-12-02 15:45:06,150 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:45:06,150 INFO  L471      AbstractCegarLoop]: Abstraction has 173637 states and 250163 transitions.
[2024-12-02 15:45:06,150 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:06,150 INFO  L276                IsEmpty]: Start isEmpty. Operand 173637 states and 250163 transitions.
[2024-12-02 15:45:06,154 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-12-02 15:45:06,154 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:45:06,154 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-12-02 15:45:06,154 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-12-02 15:45:06,155 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:45:06,155 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:06,155 INFO  L85        PathProgramCache]: Analyzing trace with hash -1563633886, now seen corresponding path program 1 times
[2024-12-02 15:45:06,155 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:06,155 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698433474]
[2024-12-02 15:45:06,155 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:06,155 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:06,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:06,222 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:45:06,223 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:06,223 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698433474]
[2024-12-02 15:45:06,223 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698433474] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:06,223 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:06,223 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:45:06,223 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842559642]
[2024-12-02 15:45:06,223 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:06,223 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:45:06,223 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:06,224 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:45:06,224 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:06,224 INFO  L87              Difference]: Start difference. First operand 173637 states and 250163 transitions. Second operand  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:07,201 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:45:07,201 INFO  L93              Difference]: Finished difference Result 395605 states and 570577 transitions.
[2024-12-02 15:45:07,202 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:45:07,202 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95
[2024-12-02 15:45:07,202 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:45:07,674 INFO  L225             Difference]: With dead ends: 395605
[2024-12-02 15:45:07,674 INFO  L226             Difference]: Without dead ends: 268818
[2024-12-02 15:45:07,715 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:07,716 INFO  L435           NwaCegarLoop]: 228 mSDtfsCounter, 115 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:45:07,716 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 404 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:45:07,792 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 268818 states.
[2024-12-02 15:45:09,887 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 268818 to 263270.
[2024-12-02 15:45:10,052 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 263270 states, 263269 states have (on average 1.4274145455788565) internal successors, (375794), 263269 states have internal predecessors, (375794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:10,729 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 263270 states to 263270 states and 375794 transitions.
[2024-12-02 15:45:10,729 INFO  L78                 Accepts]: Start accepts. Automaton has 263270 states and 375794 transitions. Word has length 95
[2024-12-02 15:45:10,729 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:45:10,729 INFO  L471      AbstractCegarLoop]: Abstraction has 263270 states and 375794 transitions.
[2024-12-02 15:45:10,729 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:10,729 INFO  L276                IsEmpty]: Start isEmpty. Operand 263270 states and 375794 transitions.
[2024-12-02 15:45:10,735 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-12-02 15:45:10,735 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:45:10,736 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-12-02 15:45:10,736 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-12-02 15:45:10,736 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:45:10,736 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:10,736 INFO  L85        PathProgramCache]: Analyzing trace with hash 625845135, now seen corresponding path program 1 times
[2024-12-02 15:45:10,736 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:10,736 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145682835]
[2024-12-02 15:45:10,736 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:10,736 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:10,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:10,803 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 15:45:10,803 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:10,803 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145682835]
[2024-12-02 15:45:10,803 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145682835] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:10,803 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:10,803 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 15:45:10,805 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602494473]
[2024-12-02 15:45:10,805 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:10,805 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 15:45:10,805 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:10,806 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 15:45:10,806 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:10,806 INFO  L87              Difference]: Start difference. First operand 263270 states and 375794 transitions. Second operand  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:12,271 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:45:12,272 INFO  L93              Difference]: Finished difference Result 698527 states and 994822 transitions.
[2024-12-02 15:45:12,272 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 15:45:12,272 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95
[2024-12-02 15:45:12,272 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:45:13,119 INFO  L225             Difference]: With dead ends: 698527
[2024-12-02 15:45:13,119 INFO  L226             Difference]: Without dead ends: 456691
[2024-12-02 15:45:13,185 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 15:45:13,186 INFO  L435           NwaCegarLoop]: 209 mSDtfsCounter, 114 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 15:45:13,186 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 385 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 15:45:13,345 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 456691 states.
[2024-12-02 15:45:17,445 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 456691 to 452711.
[2024-12-02 15:45:17,639 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 452711 states, 452710 states have (on average 1.4100881358927349) internal successors, (638361), 452710 states have internal predecessors, (638361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:18,948 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 452711 states to 452711 states and 638361 transitions.
[2024-12-02 15:45:18,948 INFO  L78                 Accepts]: Start accepts. Automaton has 452711 states and 638361 transitions. Word has length 95
[2024-12-02 15:45:18,948 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:45:18,948 INFO  L471      AbstractCegarLoop]: Abstraction has 452711 states and 638361 transitions.
[2024-12-02 15:45:18,948 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:18,948 INFO  L276                IsEmpty]: Start isEmpty. Operand 452711 states and 638361 transitions.
[2024-12-02 15:45:18,958 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-12-02 15:45:18,958 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:45:18,958 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-12-02 15:45:18,958 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-12-02 15:45:18,959 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:45:18,959 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:18,959 INFO  L85        PathProgramCache]: Analyzing trace with hash -1507847386, now seen corresponding path program 1 times
[2024-12-02 15:45:18,959 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:18,959 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816064774]
[2024-12-02 15:45:18,959 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:18,960 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:18,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:19,104 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-12-02 15:45:19,104 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:19,105 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816064774]
[2024-12-02 15:45:19,105 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816064774] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:19,105 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:19,105 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 15:45:19,105 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929381722]
[2024-12-02 15:45:19,105 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:19,105 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 15:45:19,105 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:19,106 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 15:45:19,106 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-12-02 15:45:19,106 INFO  L87              Difference]: Start difference. First operand 452711 states and 638361 transitions. Second operand  has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:21,946 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:45:21,946 INFO  L93              Difference]: Finished difference Result 1319788 states and 1877659 transitions.
[2024-12-02 15:45:21,946 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-12-02 15:45:21,946 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 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 95
[2024-12-02 15:45:21,946 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:45:23,126 INFO  L225             Difference]: With dead ends: 1319788
[2024-12-02 15:45:23,126 INFO  L226             Difference]: Without dead ends: 1105010
[2024-12-02 15:45:23,268 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2024-12-02 15:45:23,269 INFO  L435           NwaCegarLoop]: 354 mSDtfsCounter, 1233 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:45:23,269 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 1959 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:45:24,165 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1105010 states.
[2024-12-02 15:45:31,175 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105010 to 638287.
[2024-12-02 15:45:31,767 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 638287 states, 638286 states have (on average 1.4061455209733569) internal successors, (897523), 638286 states have internal predecessors, (897523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:33,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 638287 states to 638287 states and 897523 transitions.
[2024-12-02 15:45:33,309 INFO  L78                 Accepts]: Start accepts. Automaton has 638287 states and 897523 transitions. Word has length 95
[2024-12-02 15:45:33,309 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:45:33,310 INFO  L471      AbstractCegarLoop]: Abstraction has 638287 states and 897523 transitions.
[2024-12-02 15:45:33,310 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:33,310 INFO  L276                IsEmpty]: Start isEmpty. Operand 638287 states and 897523 transitions.
[2024-12-02 15:45:33,320 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-12-02 15:45:33,320 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:45:33,320 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-12-02 15:45:33,320 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-12-02 15:45:33,320 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:45:33,320 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:33,320 INFO  L85        PathProgramCache]: Analyzing trace with hash 379895334, now seen corresponding path program 1 times
[2024-12-02 15:45:33,320 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:33,320 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103322182]
[2024-12-02 15:45:33,320 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:33,320 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:33,342 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:33,465 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-12-02 15:45:33,466 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:33,466 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103322182]
[2024-12-02 15:45:33,466 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103322182] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:33,466 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:33,466 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 15:45:33,466 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300995724]
[2024-12-02 15:45:33,466 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:33,466 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 15:45:33,466 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:33,467 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 15:45:33,467 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-12-02 15:45:33,467 INFO  L87              Difference]: Start difference. First operand 638287 states and 897523 transitions. Second operand  has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:37,103 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:45:37,103 INFO  L93              Difference]: Finished difference Result 1505740 states and 2138608 transitions.
[2024-12-02 15:45:37,103 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-12-02 15:45:37,103 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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 95
[2024-12-02 15:45:37,103 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:45:38,912 INFO  L225             Difference]: With dead ends: 1505740
[2024-12-02 15:45:38,912 INFO  L226             Difference]: Without dead ends: 1295371
[2024-12-02 15:45:39,173 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2024-12-02 15:45:39,174 INFO  L435           NwaCegarLoop]: 348 mSDtfsCounter, 1235 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:45:39,174 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 1880 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:45:39,912 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1295371 states.
[2024-12-02 15:45:49,901 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295371 to 839818.
[2024-12-02 15:45:50,249 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 839818 states, 839817 states have (on average 1.4053144911331874) internal successors, (1180207), 839817 states have internal predecessors, (1180207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:52,141 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 839818 states to 839818 states and 1180207 transitions.
[2024-12-02 15:45:52,142 INFO  L78                 Accepts]: Start accepts. Automaton has 839818 states and 1180207 transitions. Word has length 95
[2024-12-02 15:45:52,142 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:45:52,142 INFO  L471      AbstractCegarLoop]: Abstraction has 839818 states and 1180207 transitions.
[2024-12-02 15:45:52,142 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:52,142 INFO  L276                IsEmpty]: Start isEmpty. Operand 839818 states and 1180207 transitions.
[2024-12-02 15:45:52,157 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-12-02 15:45:52,157 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:45:52,158 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-12-02 15:45:52,158 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-12-02 15:45:52,158 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:45:52,159 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:45:52,159 INFO  L85        PathProgramCache]: Analyzing trace with hash -1225673433, now seen corresponding path program 1 times
[2024-12-02 15:45:52,159 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:45:52,159 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481344708]
[2024-12-02 15:45:52,159 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:45:52,159 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:45:52,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:45:52,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked.
[2024-12-02 15:45:52,356 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:45:52,357 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481344708]
[2024-12-02 15:45:52,357 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481344708] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:45:52,357 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:45:52,357 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 15:45:52,357 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714070269]
[2024-12-02 15:45:52,357 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:45:52,357 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 15:45:52,357 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:45:52,358 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 15:45:52,358 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-12-02 15:45:52,358 INFO  L87              Difference]: Start difference. First operand 839818 states and 1180207 transitions. Second operand  has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:45:56,175 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:45:56,175 INFO  L93              Difference]: Finished difference Result 1674097 states and 2374744 transitions.
[2024-12-02 15:45:56,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-12-02 15:45:56,176 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 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 95
[2024-12-02 15:45:56,176 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:45:58,172 INFO  L225             Difference]: With dead ends: 1674097
[2024-12-02 15:45:58,172 INFO  L226             Difference]: Without dead ends: 1481190
[2024-12-02 15:45:58,341 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2024-12-02 15:45:58,341 INFO  L435           NwaCegarLoop]: 345 mSDtfsCounter, 1274 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:45:58,342 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 1828 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:45:58,947 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1481190 states.
[2024-12-02 15:46:09,497 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481190 to 985983.
[2024-12-02 15:46:09,755 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 985983 states, 985982 states have (on average 1.406375572779219) internal successors, (1386661), 985982 states have internal predecessors, (1386661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:46:11,893 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 985983 states to 985983 states and 1386661 transitions.
[2024-12-02 15:46:11,893 INFO  L78                 Accepts]: Start accepts. Automaton has 985983 states and 1386661 transitions. Word has length 95
[2024-12-02 15:46:11,893 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:46:11,893 INFO  L471      AbstractCegarLoop]: Abstraction has 985983 states and 1386661 transitions.
[2024-12-02 15:46:11,894 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:46:11,894 INFO  L276                IsEmpty]: Start isEmpty. Operand 985983 states and 1386661 transitions.
[2024-12-02 15:46:11,919 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-12-02 15:46:11,919 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:46:11,919 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-12-02 15:46:11,919 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-12-02 15:46:11,919 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:46:11,920 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:46:11,920 INFO  L85        PathProgramCache]: Analyzing trace with hash -1881180042, now seen corresponding path program 1 times
[2024-12-02 15:46:11,920 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:46:11,920 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58722355]
[2024-12-02 15:46:11,920 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:46:11,920 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:46:11,947 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:46:12,098 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-12-02 15:46:12,098 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:46:12,098 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58722355]
[2024-12-02 15:46:12,098 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58722355] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:46:12,098 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:46:12,098 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 15:46:12,098 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580835097]
[2024-12-02 15:46:12,099 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:46:12,099 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 15:46:12,099 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:46:12,099 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 15:46:12,099 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-12-02 15:46:12,100 INFO  L87              Difference]: Start difference. First operand 985983 states and 1386661 transitions. Second operand  has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:46:16,498 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 15:46:16,498 INFO  L93              Difference]: Finished difference Result 1799960 states and 2550806 transitions.
[2024-12-02 15:46:16,498 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-12-02 15:46:16,498 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 95
[2024-12-02 15:46:16,499 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 15:46:18,445 INFO  L225             Difference]: With dead ends: 1799960
[2024-12-02 15:46:18,446 INFO  L226             Difference]: Without dead ends: 1638123
[2024-12-02 15:46:18,685 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2024-12-02 15:46:18,685 INFO  L435           NwaCegarLoop]: 342 mSDtfsCounter, 1359 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 15:46:18,686 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 1828 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 15:46:19,846 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1638123 states.
[2024-12-02 15:46:31,448 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638123 to 1105346.
[2024-12-02 15:46:31,775 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1105346 states, 1105345 states have (on average 1.4071688025005766) internal successors, (1555407), 1105345 states have internal predecessors, (1555407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:46:34,255 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1105346 states to 1105346 states and 1555407 transitions.
[2024-12-02 15:46:34,255 INFO  L78                 Accepts]: Start accepts. Automaton has 1105346 states and 1555407 transitions. Word has length 95
[2024-12-02 15:46:34,255 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 15:46:34,256 INFO  L471      AbstractCegarLoop]: Abstraction has 1105346 states and 1555407 transitions.
[2024-12-02 15:46:34,256 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 15:46:34,256 INFO  L276                IsEmpty]: Start isEmpty. Operand 1105346 states and 1555407 transitions.
[2024-12-02 15:46:34,274 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 96
[2024-12-02 15:46:34,274 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 15:46:34,274 INFO  L218           NwaCegarLoop]: trace histogram [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]
[2024-12-02 15:46:34,274 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-12-02 15:46:34,274 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 15:46:34,275 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 15:46:34,275 INFO  L85        PathProgramCache]: Analyzing trace with hash 1282904011, now seen corresponding path program 1 times
[2024-12-02 15:46:34,275 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 15:46:34,279 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772552602]
[2024-12-02 15:46:34,279 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 15:46:34,279 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 15:46:34,299 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 15:46:34,423 INFO  L134       CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 15:46:34,423 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 15:46:34,423 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772552602]
[2024-12-02 15:46:34,423 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772552602] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 15:46:34,423 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 15:46:34,423 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 15:46:34,423 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254494189]
[2024-12-02 15:46:34,423 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 15:46:34,424 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 15:46:34,424 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 15:46:34,424 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 15:46:34,424 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-12-02 15:46:34,424 INFO  L87              Difference]: Start difference. First operand 1105346 states and 1555407 transitions. Second operand  has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 7 states have internal predecessors, (90), 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)