./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label58.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 0e0057cc
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label58.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya --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 fb8c6fb78a6c59c8171e9d25b90d36665462463f181479f5752d9a3c7837cce7
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-29 00:32:44,477 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-29 00:32:44,536 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-29 00:32:44,540 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-29 00:32:44,541 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-29 00:32:44,561 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-29 00:32:44,562 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-29 00:32:44,562 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-29 00:32:44,563 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-29 00:32:44,563 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-29 00:32:44,564 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-29 00:32:44,565 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-29 00:32:44,565 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-29 00:32:44,566 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-29 00:32:44,566 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-29 00:32:44,567 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-29 00:32:44,567 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-29 00:32:44,568 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-29 00:32:44,568 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-29 00:32:44,569 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-29 00:32:44,569 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-29 00:32:44,570 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-29 00:32:44,570 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-29 00:32:44,571 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-29 00:32:44,571 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-29 00:32:44,572 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-29 00:32:44,572 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-29 00:32:44,572 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-29 00:32:44,573 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-29 00:32:44,573 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-29 00:32:44,573 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-29 00:32:44,574 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-29 00:32:44,574 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-29 00:32:44,574 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-29 00:32:44,574 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-29 00:32:44,575 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-29 00:32:44,575 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-29 00:32:44,575 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-29 00:32:44,575 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-29 00:32:44,575 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-29 00:32:44,575 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-29 00:32:44,576 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-29 00:32:44,576 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya
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 -> fb8c6fb78a6c59c8171e9d25b90d36665462463f181479f5752d9a3c7837cce7
[2023-11-29 00:32:44,809 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-29 00:32:44,831 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-29 00:32:44,834 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-29 00:32:44,835 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-29 00:32:44,836 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-29 00:32:44,837 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/eca-rers2012/Problem07_label58.c
[2023-11-29 00:32:48,062 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-29 00:32:49,657 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-29 00:32:49,657 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/sv-benchmarks/c/eca-rers2012/Problem07_label58.c
[2023-11-29 00:32:49,819 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/data/0c91cc468/97bbd8bda5d845a98e3696ba9a329104/FLAG2bb671919
[2023-11-29 00:32:49,832 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/data/0c91cc468/97bbd8bda5d845a98e3696ba9a329104
[2023-11-29 00:32:49,834 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-29 00:32:49,836 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-29 00:32:49,838 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-29 00:32:49,838 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-29 00:32:49,843 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-29 00:32:49,844 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:32:49" (1/1) ...
[2023-11-29 00:32:49,845 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e5221c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:32:49, skipping insertion in model container
[2023-11-29 00:32:49,845 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:32:49" (1/1) ...
[2023-11-29 00:32:50,659 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-29 00:33:02,842 WARN  L240   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_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/sv-benchmarks/c/eca-rers2012/Problem07_label58.c[2766771,2766784]
[2023-11-29 00:33:02,909 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-29 00:33:02,917 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-29 00:33:09,963 WARN  L240   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_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/sv-benchmarks/c/eca-rers2012/Problem07_label58.c[2766771,2766784]
[2023-11-29 00:33:09,982 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-29 00:33:10,988 INFO  L206         MainTranslator]: Completed translation
[2023-11-29 00:33:10,988 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10 WrapperNode
[2023-11-29 00:33:10,988 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-29 00:33:10,989 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-29 00:33:10,989 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-29 00:33:10,989 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-29 00:33:10,995 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:11,350 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:12,964 INFO  L138                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83774
[2023-11-29 00:33:12,964 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-29 00:33:12,965 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-29 00:33:12,965 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-29 00:33:12,965 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-29 00:33:12,977 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:12,977 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:13,312 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:13,650 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].
[2023-11-29 00:33:13,651 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:13,651 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:14,447 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:14,570 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:14,634 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:14,732 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:15,075 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-29 00:33:15,076 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-29 00:33:15,076 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-29 00:33:15,077 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-29 00:33:15,078 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (1/1) ...
[2023-11-29 00:33:15,084 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-29 00:33:15,094 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/z3
[2023-11-29 00:33:15,109 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-29 00:33:15,111 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4aad9b7-3d07-43c4-872e-d47cfbead4aa/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-29 00:33:15,140 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-29 00:33:15,140 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-29 00:33:15,140 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-29 00:33:15,140 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-29 00:33:15,282 INFO  L241             CfgBuilder]: Building ICFG
[2023-11-29 00:33:15,284 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-29 00:34:01,607 INFO  L282             CfgBuilder]: Performing block encoding
[2023-11-29 00:34:01,805 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-29 00:34:01,806 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-29 00:34:01,811 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:34:01 BoogieIcfgContainer
[2023-11-29 00:34:01,811 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-29 00:34:01,814 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-29 00:34:01,814 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-29 00:34:01,818 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-29 00:34:01,818 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:32:49" (1/3) ...
[2023-11-29 00:34:01,819 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476077e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:34:01, skipping insertion in model container
[2023-11-29 00:34:01,819 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:33:10" (2/3) ...
[2023-11-29 00:34:01,819 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476077e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:34:01, skipping insertion in model container
[2023-11-29 00:34:01,819 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:34:01" (3/3) ...
[2023-11-29 00:34:01,821 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem07_label58.c
[2023-11-29 00:34:01,838 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-29 00:34:01,838 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-29 00:34:02,015 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-29 00:34:02,021 INFO  L357      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, mHoare=true, 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;@551a7361, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-29 00:34:02,021 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-29 00:34:02,052 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 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)
[2023-11-29 00:34:02,694 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10086
[2023-11-29 00:34:02,694 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:34:02,700 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-11-29 00:34:02,703 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:34:02,711 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:34:02,716 INFO  L85        PathProgramCache]: Analyzing trace with hash 35786962, now seen corresponding path program 1 times
[2023-11-29 00:34:02,723 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:34:02,723 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059798753]
[2023-11-29 00:34:02,726 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:34:02,727 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:34:05,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:34:40,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:34:40,901 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:34:40,901 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059798753]
[2023-11-29 00:34:40,902 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059798753] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:34:40,902 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:34:40,905 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:34:40,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29447173]
[2023-11-29 00:34:40,907 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:34:40,923 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:34:40,923 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:34:40,959 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:34:40,960 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:34:40,983 INFO  L87              Difference]: Start difference. First operand  has 10195 states, 10193 states have (on average 1.9952908859020897) internal successors, (20338), 10194 states have internal predecessors, (20338), 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 3361.6666666666665) internal successors, (10085), 2 states have internal predecessors, (10085), 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)
[2023-11-29 00:35:22,286 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:35:22,286 INFO  L93              Difference]: Finished difference Result 30581 states and 61010 transitions.
[2023-11-29 00:35:22,287 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:35:22,292 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3361.6666666666665) internal successors, (10085), 2 states have internal predecessors, (10085), 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 10085
[2023-11-29 00:35:22,312 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:35:22,446 INFO  L225             Difference]: With dead ends: 30581
[2023-11-29 00:35:22,446 INFO  L226             Difference]: Without dead ends: 20383
[2023-11-29 00:35:22,464 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:35:22,468 INFO  L413           NwaCegarLoop]: 7700 mSDtfsCounter, 410 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 31108 mSolverCounterSat, 9500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 7751 SdHoareTripleChecker+Invalid, 40608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9500 IncrementalHoareTripleChecker+Valid, 31108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time
[2023-11-29 00:35:22,469 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 7751 Invalid, 40608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9500 Valid, 31108 Invalid, 0 Unknown, 0 Unchecked, 40.5s Time]
[2023-11-29 00:35:22,516 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20383 states.
[2023-11-29 00:35:22,954 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20383 to 20383.
[2023-11-29 00:35:22,990 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20383 states, 20382 states have (on average 1.6155921891865372) internal successors, (32929), 20382 states have internal predecessors, (32929), 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)
[2023-11-29 00:35:23,043 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20383 states to 20383 states and 32929 transitions.
[2023-11-29 00:35:23,044 INFO  L78                 Accepts]: Start accepts. Automaton has 20383 states and 32929 transitions. Word has length 10085
[2023-11-29 00:35:23,058 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:35:23,059 INFO  L495      AbstractCegarLoop]: Abstraction has 20383 states and 32929 transitions.
[2023-11-29 00:35:23,061 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3361.6666666666665) internal successors, (10085), 2 states have internal predecessors, (10085), 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)
[2023-11-29 00:35:23,062 INFO  L276                IsEmpty]: Start isEmpty. Operand 20383 states and 32929 transitions.
[2023-11-29 00:35:23,846 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10090
[2023-11-29 00:35:23,846 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:35:23,852 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 00:35:23,852 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-29 00:35:23,852 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:35:23,853 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:35:23,859 INFO  L85        PathProgramCache]: Analyzing trace with hash -506479366, now seen corresponding path program 1 times
[2023-11-29 00:35:23,859 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:35:23,859 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353575544]
[2023-11-29 00:35:23,862 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:35:23,863 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:35:25,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:35:48,435 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:35:48,435 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:35:48,435 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353575544]
[2023-11-29 00:35:48,435 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353575544] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:35:48,436 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:35:48,438 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:35:48,438 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372899530]
[2023-11-29 00:35:48,438 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:35:48,454 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:35:48,455 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:35:48,466 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:35:48,467 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:35:48,470 INFO  L87              Difference]: Start difference. First operand 20383 states and 32929 transitions. Second operand  has 3 states, 3 states have (on average 3363.0) internal successors, (10089), 2 states have internal predecessors, (10089), 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)
[2023-11-29 00:36:31,360 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:36:31,361 INFO  L93              Difference]: Finished difference Result 61145 states and 98784 transitions.
[2023-11-29 00:36:31,361 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:36:31,364 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3363.0) internal successors, (10089), 2 states have internal predecessors, (10089), 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 10089
[2023-11-29 00:36:31,364 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:36:31,460 INFO  L225             Difference]: With dead ends: 61145
[2023-11-29 00:36:31,460 INFO  L226             Difference]: Without dead ends: 40763
[2023-11-29 00:36:31,485 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:36:31,486 INFO  L413           NwaCegarLoop]: 8836 mSDtfsCounter, 11137 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29967 mSolverCounterSat, 11743 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11137 SdHoareTripleChecker+Valid, 8885 SdHoareTripleChecker+Invalid, 41710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11743 IncrementalHoareTripleChecker+Valid, 29967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.1s IncrementalHoareTripleChecker+Time
[2023-11-29 00:36:31,487 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11137 Valid, 8885 Invalid, 41710 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11743 Valid, 29967 Invalid, 0 Unknown, 0 Unchecked, 42.1s Time]
[2023-11-29 00:36:31,545 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40763 states.
[2023-11-29 00:36:32,279 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40763 to 40763.
[2023-11-29 00:36:32,306 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40763 states, 40762 states have (on average 1.4703400225700407) internal successors, (59934), 40762 states have internal predecessors, (59934), 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)
[2023-11-29 00:36:32,356 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40763 states to 40763 states and 59934 transitions.
[2023-11-29 00:36:32,356 INFO  L78                 Accepts]: Start accepts. Automaton has 40763 states and 59934 transitions. Word has length 10089
[2023-11-29 00:36:32,360 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:36:32,360 INFO  L495      AbstractCegarLoop]: Abstraction has 40763 states and 59934 transitions.
[2023-11-29 00:36:32,362 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3363.0) internal successors, (10089), 2 states have internal predecessors, (10089), 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)
[2023-11-29 00:36:32,362 INFO  L276                IsEmpty]: Start isEmpty. Operand 40763 states and 59934 transitions.
[2023-11-29 00:36:32,936 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10093
[2023-11-29 00:36:32,936 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:36:32,942 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 00:36:32,943 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-29 00:36:32,943 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:36:32,943 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:36:32,948 INFO  L85        PathProgramCache]: Analyzing trace with hash -1897274139, now seen corresponding path program 1 times
[2023-11-29 00:36:32,948 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:36:32,948 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898432029]
[2023-11-29 00:36:32,950 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:36:32,950 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:36:34,602 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:36:55,542 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:36:55,542 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:36:55,542 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898432029]
[2023-11-29 00:36:55,543 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898432029] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:36:55,543 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:36:55,545 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:36:55,545 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665315322]
[2023-11-29 00:36:55,545 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:36:55,552 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:36:55,552 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:36:55,560 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:36:55,560 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:36:55,563 INFO  L87              Difference]: Start difference. First operand 40763 states and 59934 transitions. Second operand  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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)
[2023-11-29 00:37:39,636 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:37:39,636 INFO  L93              Difference]: Finished difference Result 122285 states and 179799 transitions.
[2023-11-29 00:37:39,636 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:37:39,638 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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 10092
[2023-11-29 00:37:39,638 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:37:39,724 INFO  L225             Difference]: With dead ends: 122285
[2023-11-29 00:37:39,724 INFO  L226             Difference]: Without dead ends: 81523
[2023-11-29 00:37:39,754 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:37:39,755 INFO  L413           NwaCegarLoop]: 9445 mSDtfsCounter, 10618 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31304 mSolverCounterSat, 10928 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10618 SdHoareTripleChecker+Valid, 9494 SdHoareTripleChecker+Invalid, 42232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10928 IncrementalHoareTripleChecker+Valid, 31304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.1s IncrementalHoareTripleChecker+Time
[2023-11-29 00:37:39,756 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10618 Valid, 9494 Invalid, 42232 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10928 Valid, 31304 Invalid, 0 Unknown, 0 Unchecked, 43.1s Time]
[2023-11-29 00:37:39,803 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81523 states.
[2023-11-29 00:37:40,749 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81523 to 81523.
[2023-11-29 00:37:40,826 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81523 states, 81522 states have (on average 1.3593631167046931) internal successors, (110818), 81522 states have internal predecessors, (110818), 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)
[2023-11-29 00:37:40,967 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81523 states to 81523 states and 110818 transitions.
[2023-11-29 00:37:40,967 INFO  L78                 Accepts]: Start accepts. Automaton has 81523 states and 110818 transitions. Word has length 10092
[2023-11-29 00:37:40,969 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:37:40,969 INFO  L495      AbstractCegarLoop]: Abstraction has 81523 states and 110818 transitions.
[2023-11-29 00:37:40,970 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3364.0) internal successors, (10092), 2 states have internal predecessors, (10092), 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)
[2023-11-29 00:37:40,971 INFO  L276                IsEmpty]: Start isEmpty. Operand 81523 states and 110818 transitions.
[2023-11-29 00:37:41,667 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10123
[2023-11-29 00:37:41,667 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:37:41,673 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2023-11-29 00:37:41,673 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-29 00:37:41,674 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:37:41,674 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:37:41,677 INFO  L85        PathProgramCache]: Analyzing trace with hash -1720336358, now seen corresponding path program 1 times
[2023-11-29 00:37:41,678 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:37:41,678 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364109516]
[2023-11-29 00:37:41,679 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:37:41,680 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:37:43,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:38:09,809 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:38:09,809 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:38:09,809 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364109516]
[2023-11-29 00:38:09,809 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364109516] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:38:09,810 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:38:09,812 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:38:09,812 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247162066]
[2023-11-29 00:38:09,812 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:38:09,822 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:38:09,823 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:38:09,832 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:38:09,832 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:38:09,835 INFO  L87              Difference]: Start difference. First operand 81523 states and 110818 transitions. Second operand  has 3 states, 3 states have (on average 3374.0) internal successors, (10122), 2 states have internal predecessors, (10122), 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)
[2023-11-29 00:38:52,878 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:38:52,878 INFO  L93              Difference]: Finished difference Result 244565 states and 332451 transitions.
[2023-11-29 00:38:52,879 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:38:52,880 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3374.0) internal successors, (10122), 2 states have internal predecessors, (10122), 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 10122
[2023-11-29 00:38:52,881 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:38:53,122 INFO  L225             Difference]: With dead ends: 244565
[2023-11-29 00:38:53,122 INFO  L226             Difference]: Without dead ends: 163043
[2023-11-29 00:38:53,162 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:38:53,163 INFO  L413           NwaCegarLoop]: 6562 mSDtfsCounter, 13102 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27664 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13102 SdHoareTripleChecker+Valid, 6611 SdHoareTripleChecker+Invalid, 40694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.7s IncrementalHoareTripleChecker+Time
[2023-11-29 00:38:53,164 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13102 Valid, 6611 Invalid, 40694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27664 Invalid, 0 Unknown, 0 Unchecked, 41.7s Time]
[2023-11-29 00:38:53,277 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163043 states.
[2023-11-29 00:38:54,675 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163043 to 163043.
[2023-11-29 00:38:54,795 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163043 states, 163042 states have (on average 1.2580194060426149) internal successors, (205110), 163042 states have internal predecessors, (205110), 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)
[2023-11-29 00:38:55,012 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163043 states to 163043 states and 205110 transitions.
[2023-11-29 00:38:55,012 INFO  L78                 Accepts]: Start accepts. Automaton has 163043 states and 205110 transitions. Word has length 10122
[2023-11-29 00:38:55,014 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:38:55,014 INFO  L495      AbstractCegarLoop]: Abstraction has 163043 states and 205110 transitions.
[2023-11-29 00:38:55,016 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3374.0) internal successors, (10122), 2 states have internal predecessors, (10122), 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)
[2023-11-29 00:38:55,016 INFO  L276                IsEmpty]: Start isEmpty. Operand 163043 states and 205110 transitions.
[2023-11-29 00:38:56,190 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10130
[2023-11-29 00:38:56,190 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:38:56,196 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 00:38:56,196 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-29 00:38:56,196 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:38:56,197 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:38:56,200 INFO  L85        PathProgramCache]: Analyzing trace with hash 1844267798, now seen corresponding path program 1 times
[2023-11-29 00:38:56,201 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:38:56,201 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322611557]
[2023-11-29 00:38:56,202 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:38:56,202 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:38:57,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:39:19,192 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:39:19,192 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:39:19,192 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322611557]
[2023-11-29 00:39:19,193 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322611557] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:39:19,193 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:39:19,195 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:39:19,195 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340028391]
[2023-11-29 00:39:19,195 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:39:19,207 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:39:19,207 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:39:19,219 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:39:19,219 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:39:19,222 INFO  L87              Difference]: Start difference. First operand 163043 states and 205110 transitions. Second operand  has 3 states, 3 states have (on average 3376.3333333333335) internal successors, (10129), 2 states have internal predecessors, (10129), 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)
[2023-11-29 00:40:03,174 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:40:03,174 INFO  L93              Difference]: Finished difference Result 489125 states and 615327 transitions.
[2023-11-29 00:40:03,174 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:40:03,176 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3376.3333333333335) internal successors, (10129), 2 states have internal predecessors, (10129), 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 10129
[2023-11-29 00:40:03,176 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:40:03,598 INFO  L225             Difference]: With dead ends: 489125
[2023-11-29 00:40:03,598 INFO  L226             Difference]: Without dead ends: 326083
[2023-11-29 00:40:03,682 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:40:03,684 INFO  L413           NwaCegarLoop]: 6018 mSDtfsCounter, 12828 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29206 mSolverCounterSat, 11670 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12828 SdHoareTripleChecker+Valid, 6067 SdHoareTripleChecker+Invalid, 40876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11670 IncrementalHoareTripleChecker+Valid, 29206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.7s IncrementalHoareTripleChecker+Time
[2023-11-29 00:40:03,684 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12828 Valid, 6067 Invalid, 40876 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11670 Valid, 29206 Invalid, 0 Unknown, 0 Unchecked, 41.7s Time]
[2023-11-29 00:40:04,029 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 326083 states.
[2023-11-29 00:40:06,817 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 326083 to 326083.
[2023-11-29 00:40:06,997 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 326083 states, 326082 states have (on average 1.1961776485669249) internal successors, (390052), 326082 states have internal predecessors, (390052), 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)
[2023-11-29 00:40:07,830 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 326083 states to 326083 states and 390052 transitions.
[2023-11-29 00:40:07,831 INFO  L78                 Accepts]: Start accepts. Automaton has 326083 states and 390052 transitions. Word has length 10129
[2023-11-29 00:40:07,833 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:40:07,833 INFO  L495      AbstractCegarLoop]: Abstraction has 326083 states and 390052 transitions.
[2023-11-29 00:40:07,835 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3376.3333333333335) internal successors, (10129), 2 states have internal predecessors, (10129), 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)
[2023-11-29 00:40:07,835 INFO  L276                IsEmpty]: Start isEmpty. Operand 326083 states and 390052 transitions.
[2023-11-29 00:40:08,751 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10273
[2023-11-29 00:40:08,751 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:40:08,755 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-29 00:40:08,756 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-29 00:40:08,756 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:40:08,756 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:40:08,759 INFO  L85        PathProgramCache]: Analyzing trace with hash -897895389, now seen corresponding path program 1 times
[2023-11-29 00:40:08,759 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:40:08,759 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231603716]
[2023-11-29 00:40:08,760 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:40:08,760 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:40:10,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:40:31,298 INFO  L134       CoverageAnalysis]: Checked inductivity of 186 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:40:31,299 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:40:31,299 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231603716]
[2023-11-29 00:40:31,299 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231603716] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:40:31,299 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:40:31,301 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:40:31,302 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332885481]
[2023-11-29 00:40:31,302 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:40:31,310 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:40:31,310 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:40:31,317 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:40:31,318 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:40:31,320 INFO  L87              Difference]: Start difference. First operand 326083 states and 390052 transitions. Second operand  has 3 states, 3 states have (on average 3424.0) internal successors, (10272), 2 states have internal predecessors, (10272), 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)
[2023-11-29 00:41:14,456 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:41:14,456 INFO  L93              Difference]: Finished difference Result 978245 states and 1170153 transitions.
[2023-11-29 00:41:14,456 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:41:14,458 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3424.0) internal successors, (10272), 2 states have internal predecessors, (10272), 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 10272
[2023-11-29 00:41:14,458 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:41:15,194 INFO  L225             Difference]: With dead ends: 978245
[2023-11-29 00:41:15,195 INFO  L226             Difference]: Without dead ends: 652163
[2023-11-29 00:41:15,325 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:41:15,327 INFO  L413           NwaCegarLoop]: 8997 mSDtfsCounter, 10750 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31678 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10750 SdHoareTripleChecker+Valid, 9046 SdHoareTripleChecker+Invalid, 42179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 31678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.0s IncrementalHoareTripleChecker+Time
[2023-11-29 00:41:15,327 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [10750 Valid, 9046 Invalid, 42179 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [10501 Valid, 31678 Invalid, 0 Unknown, 0 Unchecked, 39.0s Time]
[2023-11-29 00:41:15,809 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 652163 states.
[2023-11-29 00:41:21,079 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 652163 to 652163.
[2023-11-29 00:41:21,423 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 652163 states, 652162 states have (on average 1.1494229961267293) internal successors, (749610), 652162 states have internal predecessors, (749610), 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)
[2023-11-29 00:41:22,682 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 652163 states to 652163 states and 749610 transitions.
[2023-11-29 00:41:22,683 INFO  L78                 Accepts]: Start accepts. Automaton has 652163 states and 749610 transitions. Word has length 10272
[2023-11-29 00:41:22,683 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:41:22,683 INFO  L495      AbstractCegarLoop]: Abstraction has 652163 states and 749610 transitions.
[2023-11-29 00:41:22,685 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3424.0) internal successors, (10272), 2 states have internal predecessors, (10272), 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)
[2023-11-29 00:41:22,685 INFO  L276                IsEmpty]: Start isEmpty. Operand 652163 states and 749610 transitions.
[2023-11-29 00:41:24,481 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10558
[2023-11-29 00:41:24,481 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-29 00:41:24,487 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2023-11-29 00:41:24,487 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-29 00:41:24,488 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-29 00:41:24,488 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-29 00:41:24,490 INFO  L85        PathProgramCache]: Analyzing trace with hash 2088371595, now seen corresponding path program 1 times
[2023-11-29 00:41:24,490 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-29 00:41:24,490 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109727068]
[2023-11-29 00:41:24,491 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-29 00:41:24,491 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-29 00:41:26,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-29 00:41:48,185 INFO  L134       CoverageAnalysis]: Checked inductivity of 469 backedges. 469 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-29 00:41:48,185 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-29 00:41:48,185 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109727068]
[2023-11-29 00:41:48,185 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109727068] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-29 00:41:48,185 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-29 00:41:48,187 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-29 00:41:48,187 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230718833]
[2023-11-29 00:41:48,188 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-29 00:41:48,195 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-29 00:41:48,195 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-29 00:41:48,205 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-29 00:41:48,205 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:41:48,208 INFO  L87              Difference]: Start difference. First operand 652163 states and 749610 transitions. Second operand  has 3 states, 3 states have (on average 3519.0) internal successors, (10557), 2 states have internal predecessors, (10557), 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)
[2023-11-29 00:42:32,199 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-29 00:42:32,199 INFO  L93              Difference]: Finished difference Result 1956485 states and 2248827 transitions.
[2023-11-29 00:42:32,200 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-29 00:42:32,201 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3519.0) internal successors, (10557), 2 states have internal predecessors, (10557), 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 10557
[2023-11-29 00:42:32,202 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-29 00:42:33,885 INFO  L225             Difference]: With dead ends: 1956485
[2023-11-29 00:42:33,885 INFO  L226             Difference]: Without dead ends: 1304323
[2023-11-29 00:42:34,137 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-29 00:42:34,140 INFO  L413           NwaCegarLoop]: 6000 mSDtfsCounter, 12123 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29862 mSolverCounterSat, 11034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12123 SdHoareTripleChecker+Valid, 6049 SdHoareTripleChecker+Invalid, 40896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11034 IncrementalHoareTripleChecker+Valid, 29862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time
[2023-11-29 00:42:34,141 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12123 Valid, 6049 Invalid, 40896 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11034 Valid, 29862 Invalid, 0 Unknown, 0 Unchecked, 37.7s Time]
[2023-11-29 00:42:35,114 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1304323 states.
[2023-11-29 00:42:46,137 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304323 to 1304323.
[2023-11-29 00:42:46,891 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1304323 states, 1304322 states have (on average 1.1113528714535215) internal successors, (1449562), 1304322 states have internal predecessors, (1449562), 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)
[2023-11-29 00:42:49,692 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1304323 states to 1304323 states and 1449562 transitions.
[2023-11-29 00:42:49,693 INFO  L78                 Accepts]: Start accepts. Automaton has 1304323 states and 1449562 transitions. Word has length 10557
[2023-11-29 00:42:49,693 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-29 00:42:49,693 INFO  L495      AbstractCegarLoop]: Abstraction has 1304323 states and 1449562 transitions.
[2023-11-29 00:42:49,695 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3519.0) internal successors, (10557), 2 states have internal predecessors, (10557), 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)
[2023-11-29 00:42:49,695 INFO  L276                IsEmpty]: Start isEmpty. Operand 1304323 states and 1449562 transitions.