./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label26.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_e753d2d5-30be-4c4f-891e-db31ae556233/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/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_e753d2d5-30be-4c4f-891e-db31ae556233/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label26.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/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_e753d2d5-30be-4c4f-891e-db31ae556233/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 99ca606f39e8e89c81ae97710d3cffb62ce706661ab0895e651aaa8a954b23f1
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 14:22:03,692 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-12-02 14:22:03,758 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 14:22:03,763 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 14:22:03,763 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 14:22:03,789 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 14:22:03,790 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 14:22:03,790 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 14:22:03,790 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 14:22:03,790 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-12-02 14:22:03,791 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 14:22:03,791 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 14:22:03,791 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 14:22:03,791 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-12-02 14:22:03,791 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-12-02 14:22:03,791 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 14:22:03,792 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-12-02 14:22:03,792 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-12-02 14:22:03,792 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-12-02 14:22:03,792 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-12-02 14:22:03,792 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-12-02 14:22:03,792 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 14:22:03,792 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 14:22:03,792 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 14:22:03,792 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-12-02 14:22:03,792 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-12-02 14:22:03,792 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 14:22:03,793 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-12-02 14:22:03,793 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 14:22:03,793 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 14:22:03,793 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 14:22:03,793 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 14:22:03,793 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:22:03,793 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 14:22:03,793 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 14:22:03,793 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 14:22:03,793 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 14:22:03,794 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:22:03,794 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 14:22:03,794 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 14:22:03,794 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-12-02 14:22:03,794 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 14:22:03,794 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-12-02 14:22:03,794 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 14:22:03,794 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 14:22:03,794 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 14:22:03,794 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 14:22:03,795 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 14:22:03,795 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_e753d2d5-30be-4c4f-891e-db31ae556233/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 -> 99ca606f39e8e89c81ae97710d3cffb62ce706661ab0895e651aaa8a954b23f1
[2024-12-02 14:22:04,056 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 14:22:04,064 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 14:22:04,067 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 14:22:04,068 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-12-02 14:22:04,068 INFO  L274        PluginConnector]: CDTParser initialized
[2024-12-02 14:22:04,069 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/eca-rers2012/Problem07_label26.c
[2024-12-02 14:22:06,993 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/bin/uautomizer-verify-84ZbGMXZE1/data/b4fa13698/b3df5ded06054d2793da3136c255027e/FLAG1b739db54
[2024-12-02 14:22:08,336 INFO  L384              CDTParser]: Found 1 translation units.
[2024-12-02 14:22:08,336 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/sv-benchmarks/c/eca-rers2012/Problem07_label26.c
[2024-12-02 14:22:08,481 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/bin/uautomizer-verify-84ZbGMXZE1/data/b4fa13698/b3df5ded06054d2793da3136c255027e/FLAG1b739db54
[2024-12-02 14:22:08,494 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/bin/uautomizer-verify-84ZbGMXZE1/data/b4fa13698/b3df5ded06054d2793da3136c255027e
[2024-12-02 14:22:08,497 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 14:22:08,498 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 14:22:08,499 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 14:22:08,499 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 14:22:08,504 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 14:22:08,505 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:22:08" (1/1) ...
[2024-12-02 14:22:08,506 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@271dc752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:08, skipping insertion in model container
[2024-12-02 14:22:08,506 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:22:08" (1/1) ...
[2024-12-02 14:22:09,087 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-12-02 14:22:19,156 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_e753d2d5-30be-4c4f-891e-db31ae556233/sv-benchmarks/c/eca-rers2012/Problem07_label26.c[2775806,2775819]
[2024-12-02 14:22:19,221 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 14:22:19,233 INFO  L200         MainTranslator]: Completed pre-run
[2024-12-02 14:22:24,988 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_e753d2d5-30be-4c4f-891e-db31ae556233/sv-benchmarks/c/eca-rers2012/Problem07_label26.c[2775806,2775819]
[2024-12-02 14:22:24,993 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 14:22:25,846 INFO  L204         MainTranslator]: Completed translation
[2024-12-02 14:22:25,846 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25 WrapperNode
[2024-12-02 14:22:25,847 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 14:22:25,847 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 14:22:25,848 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 14:22:25,848 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 14:22:25,853 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:26,324 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:28,002 INFO  L138                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83818
[2024-12-02 14:22:28,003 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 14:22:28,004 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 14:22:28,004 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 14:22:28,004 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 14:22:28,013 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:28,014 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:28,535 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:28,791 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 14:22:28,791 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:28,792 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:29,822 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:29,888 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:30,107 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:30,333 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:30,421 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:30,777 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 14:22:30,778 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 14:22:30,778 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 14:22:30,778 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-12-02 14:22:30,779 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (1/1) ...
[2024-12-02 14:22:30,786 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:22:30,800 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:22:30,810 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 14:22:30,813 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e753d2d5-30be-4c4f-891e-db31ae556233/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 14:22:30,837 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 14:22:30,837 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 14:22:30,837 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 14:22:30,837 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 14:22:30,986 INFO  L234             CfgBuilder]: Building ICFG
[2024-12-02 14:22:30,988 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 14:23:16,000 INFO  L?                        ?]: Removed 10224 outVars from TransFormulas that were not future-live.
[2024-12-02 14:23:16,000 INFO  L283             CfgBuilder]: Performing block encoding
[2024-12-02 14:23:16,113 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 14:23:16,113 INFO  L312             CfgBuilder]: Removed 2 assume(true) statements.
[2024-12-02 14:23:16,113 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:23:16 BoogieIcfgContainer
[2024-12-02 14:23:16,114 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 14:23:16,116 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 14:23:16,116 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 14:23:16,121 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-12-02 14:23:16,121 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:22:08" (1/3) ...
[2024-12-02 14:23:16,122 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7117de3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:23:16, skipping insertion in model container
[2024-12-02 14:23:16,122 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:22:25" (2/3) ...
[2024-12-02 14:23:16,122 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7117de3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:23:16, skipping insertion in model container
[2024-12-02 14:23:16,122 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:23:16" (3/3) ...
[2024-12-02 14:23:16,124 INFO  L128   eAbstractionObserver]: Analyzing ICFG Problem07_label26.c
[2024-12-02 14:23:16,139 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 14:23:16,142 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG Problem07_label26.c that has 1 procedures, 10257 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 14:23:16,361 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 14:23:16,373 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;@14358ca2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 14:23:16,373 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 14:23:16,402 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 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 14:23:16,920 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10140
[2024-12-02 14:23:16,920 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:23:16,923 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-12-02 14:23:16,923 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:23:16,929 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:23:16,932 INFO  L85        PathProgramCache]: Analyzing trace with hash -1338313007, now seen corresponding path program 1 times
[2024-12-02 14:23:16,938 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:23:16,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979061135]
[2024-12-02 14:23:16,941 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:23:16,941 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:23:19,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:23:58,973 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 14:23:58,974 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:23:58,974 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979061135]
[2024-12-02 14:23:58,975 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979061135] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:23:58,975 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:23:58,976 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 14:23:58,978 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338698705]
[2024-12-02 14:23:58,979 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:23:58,998 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 14:23:58,998 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:23:59,029 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 14:23:59,029 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:23:59,059 INFO  L87              Difference]: Start difference. First operand  has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 2534.75) internal successors, (10139), 3 states have internal predecessors, (10139), 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 14:24:57,374 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:24:57,375 INFO  L93              Difference]: Finished difference Result 40898 states and 81470 transitions.
[2024-12-02 14:24:57,376 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 14:24:57,379 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2534.75) internal successors, (10139), 3 states have internal predecessors, (10139), 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 10139
[2024-12-02 14:24:57,394 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:24:57,478 INFO  L225             Difference]: With dead ends: 40898
[2024-12-02 14:24:57,478 INFO  L226             Difference]: Without dead ends: 30574
[2024-12-02 14:24:57,491 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-12-02 14:24:57,494 INFO  L435           NwaCegarLoop]: 5139 mSDtfsCounter, 22280 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 51972 mSolverCounterSat, 19077 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22280 SdHoareTripleChecker+Valid, 5256 SdHoareTripleChecker+Invalid, 71049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 19077 IncrementalHoareTripleChecker+Valid, 51972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.1s IncrementalHoareTripleChecker+Time
[2024-12-02 14:24:57,495 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [22280 Valid, 5256 Invalid, 71049 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [19077 Valid, 51972 Invalid, 0 Unknown, 0 Unchecked, 57.1s Time]
[2024-12-02 14:24:57,531 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30574 states.
[2024-12-02 14:24:57,900 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30574 to 30574.
[2024-12-02 14:24:57,935 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30574 states, 30573 states have (on average 1.496549242795931) internal successors, (45754), 30573 states have internal predecessors, (45754), 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 14:24:57,976 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30574 states to 30574 states and 45754 transitions.
[2024-12-02 14:24:57,977 INFO  L78                 Accepts]: Start accepts. Automaton has 30574 states and 45754 transitions. Word has length 10139
[2024-12-02 14:24:57,989 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:24:57,989 INFO  L471      AbstractCegarLoop]: Abstraction has 30574 states and 45754 transitions.
[2024-12-02 14:24:57,991 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2534.75) internal successors, (10139), 3 states have internal predecessors, (10139), 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 14:24:57,991 INFO  L276                IsEmpty]: Start isEmpty. Operand 30574 states and 45754 transitions.
[2024-12-02 14:24:58,731 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13039
[2024-12-02 14:24:58,731 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:24:58,737 INFO  L218           NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 14:24:58,737 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 14:24:58,737 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:24:58,741 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:24:58,744 INFO  L85        PathProgramCache]: Analyzing trace with hash 377012792, now seen corresponding path program 1 times
[2024-12-02 14:24:58,744 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:24:58,744 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311094980]
[2024-12-02 14:24:58,745 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:24:58,746 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:25:00,225 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:25:24,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 2888 backedges. 2885 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-12-02 14:25:24,239 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:25:24,239 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311094980]
[2024-12-02 14:25:24,239 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311094980] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:25:24,239 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:25:24,241 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 14:25:24,241 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859033440]
[2024-12-02 14:25:24,241 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:25:24,254 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:25:24,254 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:25:24,263 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:25:24,263 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 14:25:24,267 INFO  L87              Difference]: Start difference. First operand 30574 states and 45754 transitions. Second operand  has 3 states, 3 states have (on average 4345.333333333333) internal successors, (13036), 2 states have internal predecessors, (13036), 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 14:25:57,560 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:25:57,561 INFO  L93              Difference]: Finished difference Result 71336 states and 116865 transitions.
[2024-12-02 14:25:57,561 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 14:25:57,563 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4345.333333333333) internal successors, (13036), 2 states have internal predecessors, (13036), 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 13038
[2024-12-02 14:25:57,565 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:25:57,696 INFO  L225             Difference]: With dead ends: 71336
[2024-12-02 14:25:57,696 INFO  L226             Difference]: Without dead ends: 50954
[2024-12-02 14:25:57,711 INFO  L434           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
[2024-12-02 14:25:57,712 INFO  L435           NwaCegarLoop]: 4817 mSDtfsCounter, 10972 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28700 mSolverCounterSat, 11758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10972 SdHoareTripleChecker+Valid, 4866 SdHoareTripleChecker+Invalid, 40458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11758 IncrementalHoareTripleChecker+Valid, 28700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time
[2024-12-02 14:25:57,712 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10972 Valid, 4866 Invalid, 40458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11758 Valid, 28700 Invalid, 0 Unknown, 0 Unchecked, 32.7s Time]
[2024-12-02 14:25:57,757 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 50954 states.
[2024-12-02 14:25:58,430 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 50954 to 50954.
[2024-12-02 14:25:58,472 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 50954 states, 50953 states have (on average 1.4546935411065098) internal successors, (74121), 50953 states have internal predecessors, (74121), 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 14:25:58,537 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 50954 states to 50954 states and 74121 transitions.
[2024-12-02 14:25:58,537 INFO  L78                 Accepts]: Start accepts. Automaton has 50954 states and 74121 transitions. Word has length 13038
[2024-12-02 14:25:58,540 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:25:58,540 INFO  L471      AbstractCegarLoop]: Abstraction has 50954 states and 74121 transitions.
[2024-12-02 14:25:58,542 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4345.333333333333) internal successors, (13036), 2 states have internal predecessors, (13036), 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 14:25:58,542 INFO  L276                IsEmpty]: Start isEmpty. Operand 50954 states and 74121 transitions.
[2024-12-02 14:25:59,549 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13040
[2024-12-02 14:25:59,549 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:25:59,553 INFO  L218           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:25:59,553 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 14:25:59,554 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:25:59,555 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:25:59,558 INFO  L85        PathProgramCache]: Analyzing trace with hash 1445372762, now seen corresponding path program 1 times
[2024-12-02 14:25:59,558 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:25:59,558 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807211455]
[2024-12-02 14:25:59,559 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:25:59,559 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:26:01,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:26:40,658 INFO  L134       CoverageAnalysis]: Checked inductivity of 2890 backedges. 2890 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:26:40,658 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:26:40,659 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807211455]
[2024-12-02 14:26:40,659 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807211455] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:26:40,659 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:26:40,660 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 14:26:40,660 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76588289]
[2024-12-02 14:26:40,660 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:26:40,664 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:26:40,665 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:26:40,669 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:26:40,669 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 14:26:40,672 INFO  L87              Difference]: Start difference. First operand 50954 states and 74121 transitions. Second operand  has 3 states, 3 states have (on average 4346.333333333333) internal successors, (13039), 3 states have internal predecessors, (13039), 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 14:27:12,195 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:27:12,196 INFO  L93              Difference]: Finished difference Result 112096 states and 166188 transitions.
[2024-12-02 14:27:12,196 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 14:27:12,197 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4346.333333333333) internal successors, (13039), 3 states have internal predecessors, (13039), 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 13039
[2024-12-02 14:27:12,199 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:27:12,274 INFO  L225             Difference]: With dead ends: 112096
[2024-12-02 14:27:12,274 INFO  L226             Difference]: Without dead ends: 71334
[2024-12-02 14:27:12,292 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 14:27:12,292 INFO  L435           NwaCegarLoop]: 18209 mSDtfsCounter, 10210 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 33598 mSolverCounterSat, 3753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10210 SdHoareTripleChecker+Valid, 18260 SdHoareTripleChecker+Invalid, 37351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3753 IncrementalHoareTripleChecker+Valid, 33598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.9s IncrementalHoareTripleChecker+Time
[2024-12-02 14:27:12,293 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10210 Valid, 18260 Invalid, 37351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3753 Valid, 33598 Invalid, 0 Unknown, 0 Unchecked, 30.9s Time]
[2024-12-02 14:27:12,329 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 71334 states.
[2024-12-02 14:27:12,774 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 71334 to 71334.
[2024-12-02 14:27:12,819 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 71334 states, 71333 states have (on average 1.4101607951439026) internal successors, (100591), 71333 states have internal predecessors, (100591), 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 14:27:13,007 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 71334 states to 71334 states and 100591 transitions.
[2024-12-02 14:27:13,007 INFO  L78                 Accepts]: Start accepts. Automaton has 71334 states and 100591 transitions. Word has length 13039
[2024-12-02 14:27:13,009 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:27:13,009 INFO  L471      AbstractCegarLoop]: Abstraction has 71334 states and 100591 transitions.
[2024-12-02 14:27:13,010 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4346.333333333333) internal successors, (13039), 3 states have internal predecessors, (13039), 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 14:27:13,010 INFO  L276                IsEmpty]: Start isEmpty. Operand 71334 states and 100591 transitions.
[2024-12-02 14:27:13,844 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13046
[2024-12-02 14:27:13,844 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:27:13,848 INFO  L218           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 14:27:13,848 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 14:27:13,848 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:27:13,850 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:27:13,853 INFO  L85        PathProgramCache]: Analyzing trace with hash 282302409, now seen corresponding path program 1 times
[2024-12-02 14:27:13,853 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:27:13,853 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16270303]
[2024-12-02 14:27:13,854 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:27:13,854 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:27:15,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:27:41,054 INFO  L134       CoverageAnalysis]: Checked inductivity of 2902 backedges. 2892 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-12-02 14:27:41,055 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:27:41,055 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16270303]
[2024-12-02 14:27:41,055 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16270303] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:27:41,055 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:27:41,056 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-12-02 14:27:41,057 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393406474]
[2024-12-02 14:27:41,057 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:27:41,062 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 14:27:41,062 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:27:41,070 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 14:27:41,071 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 14:27:41,074 INFO  L87              Difference]: Start difference. First operand 71334 states and 100591 transitions. Second operand  has 3 states, 3 states have (on average 4345.333333333333) internal successors, (13036), 2 states have internal predecessors, (13036), 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 14:28:17,551 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:28:17,551 INFO  L93              Difference]: Finished difference Result 193616 states and 281376 transitions.
[2024-12-02 14:28:17,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-12-02 14:28:17,553 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4345.333333333333) internal successors, (13036), 2 states have internal predecessors, (13036), 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 13045
[2024-12-02 14:28:17,554 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:28:17,727 INFO  L225             Difference]: With dead ends: 193616
[2024-12-02 14:28:17,727 INFO  L226             Difference]: Without dead ends: 132474
[2024-12-02 14:28:17,753 INFO  L434           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
[2024-12-02 14:28:17,754 INFO  L435           NwaCegarLoop]: 6718 mSDtfsCounter, 10129 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27706 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10129 SdHoareTripleChecker+Valid, 6767 SdHoareTripleChecker+Invalid, 40736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.5s IncrementalHoareTripleChecker+Time
[2024-12-02 14:28:17,754 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [10129 Valid, 6767 Invalid, 40736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27706 Invalid, 0 Unknown, 0 Unchecked, 35.5s Time]
[2024-12-02 14:28:17,823 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 132474 states.
[2024-12-02 14:28:18,765 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 132474 to 132474.
[2024-12-02 14:28:18,846 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 132474 states, 132473 states have (on average 1.319838759596295) internal successors, (174843), 132473 states have internal predecessors, (174843), 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 14:28:18,974 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 132474 states to 132474 states and 174843 transitions.
[2024-12-02 14:28:18,974 INFO  L78                 Accepts]: Start accepts. Automaton has 132474 states and 174843 transitions. Word has length 13045
[2024-12-02 14:28:18,976 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:28:18,976 INFO  L471      AbstractCegarLoop]: Abstraction has 132474 states and 174843 transitions.
[2024-12-02 14:28:18,978 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4345.333333333333) internal successors, (13036), 2 states have internal predecessors, (13036), 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 14:28:18,978 INFO  L276                IsEmpty]: Start isEmpty. Operand 132474 states and 174843 transitions.
[2024-12-02 14:28:20,185 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13056
[2024-12-02 14:28:20,185 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:28:20,190 INFO  L218           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 14:28:20,190 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 14:28:20,190 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:28:20,192 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:28:20,195 INFO  L85        PathProgramCache]: Analyzing trace with hash -507759486, now seen corresponding path program 1 times
[2024-12-02 14:28:20,195 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:28:20,195 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640530440]
[2024-12-02 14:28:20,196 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:28:20,196 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:28:21,889 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:28:59,040 INFO  L134       CoverageAnalysis]: Checked inductivity of 2922 backedges. 2922 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:28:59,040 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:28:59,040 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640530440]
[2024-12-02 14:28:59,040 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640530440] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:28:59,041 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:28:59,042 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 14:28:59,042 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579061669]
[2024-12-02 14:28:59,043 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:28:59,048 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 14:28:59,048 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:28:59,055 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 14:28:59,055 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:28:59,057 INFO  L87              Difference]: Start difference. First operand 132474 states and 174843 transitions. Second operand  has 4 states, 4 states have (on average 3263.75) internal successors, (13055), 3 states have internal predecessors, (13055), 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 14:29:52,773 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:29:52,773 INFO  L93              Difference]: Finished difference Result 458556 states and 616640 transitions.
[2024-12-02 14:29:52,773 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 14:29:52,775 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 3263.75) internal successors, (13055), 3 states have internal predecessors, (13055), 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 13055
[2024-12-02 14:29:52,776 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:29:53,123 INFO  L225             Difference]: With dead ends: 458556
[2024-12-02 14:29:53,124 INFO  L226             Difference]: Without dead ends: 336274
[2024-12-02 14:29:53,176 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:29:53,177 INFO  L435           NwaCegarLoop]: 5415 mSDtfsCounter, 29143 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 40999 mSolverCounterSat, 25779 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29143 SdHoareTripleChecker+Valid, 5513 SdHoareTripleChecker+Invalid, 66778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25779 IncrementalHoareTripleChecker+Valid, 40999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.5s IncrementalHoareTripleChecker+Time
[2024-12-02 14:29:53,177 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [29143 Valid, 5513 Invalid, 66778 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25779 Valid, 40999 Invalid, 0 Unknown, 0 Unchecked, 51.5s Time]
[2024-12-02 14:29:53,343 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 336274 states.
[2024-12-02 14:29:56,035 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 336274 to 336274.
[2024-12-02 14:29:56,140 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 336274 states, 336273 states have (on average 1.2261376916969249) internal successors, (412317), 336273 states have internal predecessors, (412317), 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 14:29:56,439 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 336274 states to 336274 states and 412317 transitions.
[2024-12-02 14:29:56,439 INFO  L78                 Accepts]: Start accepts. Automaton has 336274 states and 412317 transitions. Word has length 13055
[2024-12-02 14:29:56,440 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:29:56,440 INFO  L471      AbstractCegarLoop]: Abstraction has 336274 states and 412317 transitions.
[2024-12-02 14:29:56,441 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 3263.75) internal successors, (13055), 3 states have internal predecessors, (13055), 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 14:29:56,442 INFO  L276                IsEmpty]: Start isEmpty. Operand 336274 states and 412317 transitions.
[2024-12-02 14:29:58,063 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13139
[2024-12-02 14:29:58,063 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:29:58,066 INFO  L218           NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-12-02 14:29:58,067 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 14:29:58,067 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:29:58,068 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:29:58,070 INFO  L85        PathProgramCache]: Analyzing trace with hash 1137143936, now seen corresponding path program 1 times
[2024-12-02 14:29:58,070 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:29:58,070 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539010916]
[2024-12-02 14:29:58,071 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:29:58,071 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:29:59,897 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:30:34,855 INFO  L134       CoverageAnalysis]: Checked inductivity of 3091 backedges. 3087 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-12-02 14:30:34,855 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:30:34,855 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539010916]
[2024-12-02 14:30:34,855 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539010916] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:30:34,855 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:30:34,856 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 14:30:34,856 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21126401]
[2024-12-02 14:30:34,856 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:30:34,861 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 14:30:34,861 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:30:34,867 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 14:30:34,867 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:30:34,870 INFO  L87              Difference]: Start difference. First operand 336274 states and 412317 transitions. Second operand  has 4 states, 4 states have (on average 3283.75) internal successors, (13135), 3 states have internal predecessors, (13135), 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 14:31:28,544 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:31:28,544 INFO  L93              Difference]: Finished difference Result 1069956 states and 1329062 transitions.
[2024-12-02 14:31:28,545 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 14:31:28,546 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 3283.75) internal successors, (13135), 3 states have internal predecessors, (13135), 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 13138
[2024-12-02 14:31:28,548 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:31:29,295 INFO  L225             Difference]: With dead ends: 1069956
[2024-12-02 14:31:29,295 INFO  L226             Difference]: Without dead ends: 743874
[2024-12-02 14:31:29,463 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:31:29,464 INFO  L435           NwaCegarLoop]: 7954 mSDtfsCounter, 26081 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 42851 mSolverCounterSat, 22553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26081 SdHoareTripleChecker+Valid, 8053 SdHoareTripleChecker+Invalid, 65404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 22553 IncrementalHoareTripleChecker+Valid, 42851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.3s IncrementalHoareTripleChecker+Time
[2024-12-02 14:31:29,465 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [26081 Valid, 8053 Invalid, 65404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [22553 Valid, 42851 Invalid, 0 Unknown, 0 Unchecked, 50.3s Time]
[2024-12-02 14:31:30,011 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 743874 states.
[2024-12-02 14:31:35,344 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 743874 to 743874.
[2024-12-02 14:31:35,663 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 743874 states, 743873 states have (on average 1.1708517448542963) internal successors, (870965), 743873 states have internal predecessors, (870965), 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 14:31:37,052 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 743874 states to 743874 states and 870965 transitions.
[2024-12-02 14:31:37,052 INFO  L78                 Accepts]: Start accepts. Automaton has 743874 states and 870965 transitions. Word has length 13138
[2024-12-02 14:31:37,053 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:31:37,053 INFO  L471      AbstractCegarLoop]: Abstraction has 743874 states and 870965 transitions.
[2024-12-02 14:31:37,055 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 3283.75) internal successors, (13135), 3 states have internal predecessors, (13135), 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 14:31:37,055 INFO  L276                IsEmpty]: Start isEmpty. Operand 743874 states and 870965 transitions.