./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version c00e63dc
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 0d0faf19803047b9d51fb440293a8075aae4a757b1a8a36a5355760a1968a70e
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-c00e63d-m
[2025-02-05 16:25:19,046 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-05 16:25:19,102 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-02-05 16:25:19,107 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-05 16:25:19,108 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-05 16:25:19,127 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-05 16:25:19,128 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-05 16:25:19,129 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-05 16:25:19,129 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-05 16:25:19,129 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-05 16:25:19,129 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-05 16:25:19,129 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-05 16:25:19,130 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-05 16:25:19,130 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-05 16:25:19,130 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-05 16:25:19,130 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-05 16:25:19,130 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-05 16:25:19,130 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-02-05 16:25:19,131 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-05 16:25:19,131 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-02-05 16:25:19,131 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-05 16:25:19,131 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-05 16:25:19,131 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-05 16:25:19,131 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-05 16:25:19,131 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-02-05 16:25:19,131 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-05 16:25:19,131 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-05 16:25:19,131 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-05 16:25:19,132 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 16:25:19,132 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-05 16:25:19,132 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-05 16:25:19,132 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
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 -> 0d0faf19803047b9d51fb440293a8075aae4a757b1a8a36a5355760a1968a70e
[2025-02-05 16:25:19,443 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-05 16:25:19,452 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-05 16:25:19,455 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-05 16:25:19,456 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-05 16:25:19,456 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-05 16:25:19,458 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c
[2025-02-05 16:25:20,750 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e6b27fc66/d36b04ba25a648559d6dfbb4ca704a8e/FLAG004bf739f
[2025-02-05 16:25:21,121 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-05 16:25:21,122 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c
[2025-02-05 16:25:21,139 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e6b27fc66/d36b04ba25a648559d6dfbb4ca704a8e/FLAG004bf739f
[2025-02-05 16:25:21,315 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/e6b27fc66/d36b04ba25a648559d6dfbb4ca704a8e
[2025-02-05 16:25:21,317 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-05 16:25:21,318 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-05 16:25:21,320 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-05 16:25:21,320 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-05 16:25:21,323 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-05 16:25:21,324 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:25:21" (1/1) ...
[2025-02-05 16:25:21,324 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671e5ed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:21, skipping insertion in model container
[2025-02-05 16:25:21,324 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:25:21" (1/1) ...
[2025-02-05 16:25:21,363 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-05 16:25:21,490 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c[1510,1523]
[2025-02-05 16:25:21,767 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 16:25:21,783 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-05 16:25:21,791 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug1.i","-S") [38]
[2025-02-05 16:25:21,795 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c[1510,1523]
[2025-02-05 16:25:21,970 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 16:25:22,039 INFO  L204         MainTranslator]: Completed translation
[2025-02-05 16:25:22,041 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22 WrapperNode
[2025-02-05 16:25:22,041 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-05 16:25:22,042 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-05 16:25:22,042 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-05 16:25:22,043 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-05 16:25:22,047 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,093 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,240 INFO  L138                Inliner]: procedures = 55, calls = 2262, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4902
[2025-02-05 16:25:22,241 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-05 16:25:22,242 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-05 16:25:22,242 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-05 16:25:22,242 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-05 16:25:22,249 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,249 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,291 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,360 INFO  L175           MemorySlicer]: Split 1600 memory accesses to 15 slices as follows [8, 2, 277, 285, 113, 2, 113, 187, 203, 186, 2, 203, 8, 4, 7]. 18 percent of accesses are in the largest equivalence class. The 220 initializations are split as follows [0, 2, 27, 27, 27, 0, 27, 27, 27, 27, 0, 27, 0, 0, 2]. The 235 writes are split as follows [4, 0, 27, 27, 27, 1, 27, 31, 26, 31, 1, 26, 4, 0, 3].
[2025-02-05 16:25:22,363 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,364 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,510 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,522 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,538 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,552 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,579 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-05 16:25:22,580 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-05 16:25:22,581 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-05 16:25:22,581 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-05 16:25:22,582 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,586 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 16:25:22,595 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 16:25:22,610 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-02-05 16:25:22,627 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-02-05 16:25:22,644 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-05 16:25:22,644 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t2
[2025-02-05 16:25:22,644 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2
[2025-02-05 16:25:22,644 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode
[2025-02-05 16:25:22,644 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode
[2025-02-05 16:25:22,644 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-02-05 16:25:22,645 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t0
[2025-02-05 16:25:22,645 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0
[2025-02-05 16:25:22,645 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t1
[2025-02-05 16:25:22,645 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1
[2025-02-05 16:25:22,645 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag
[2025-02-05 16:25:22,645 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag
[2025-02-05 16:25:22,645 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2025-02-05 16:25:22,646 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2025-02-05 16:25:22,646 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2025-02-05 16:25:22,646 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2025-02-05 16:25:22,646 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#4
[2025-02-05 16:25:22,646 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#5
[2025-02-05 16:25:22,646 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#6
[2025-02-05 16:25:22,646 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#7
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#8
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#9
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#10
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#11
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#12
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#13
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#14
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_count
[2025-02-05 16:25:22,647 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor
[2025-02-05 16:25:22,647 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-02-05 16:25:22,647 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-02-05 16:25:22,647 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod
[2025-02-05 16:25:22,647 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background
[2025-02-05 16:25:22,647 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2025-02-05 16:25:22,647 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2025-02-05 16:25:22,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2025-02-05 16:25:22,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2025-02-05 16:25:22,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#4
[2025-02-05 16:25:22,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#5
[2025-02-05 16:25:22,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#6
[2025-02-05 16:25:22,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#7
[2025-02-05 16:25:22,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#8
[2025-02-05 16:25:22,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#9
[2025-02-05 16:25:22,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#10
[2025-02-05 16:25:22,649 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#11
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#12
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#13
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#14
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed
[2025-02-05 16:25:22,650 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-02-05 16:25:22,650 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#8
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#9
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#10
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#11
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#12
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#13
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#14
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-05 16:25:22,650 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-05 16:25:22,650 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms
[2025-02-05 16:25:22,650 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms
[2025-02-05 16:25:22,651 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_get_count
[2025-02-05 16:25:22,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count
[2025-02-05 16:25:22,651 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode
[2025-02-05 16:25:22,651 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode
[2025-02-05 16:25:22,959 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-05 16:25:22,961 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-05 16:25:23,604 INFO  L1309  $ProcedureCfgBuilder]: dead code at ProgramPoint L78: call ULTIMATE.dealloc(balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset);havoc balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset;call ULTIMATE.dealloc(balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset);havoc balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset;
[2025-02-05 16:25:23,605 INFO  L1309  $ProcedureCfgBuilder]: dead code at ProgramPoint L204: call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset);havoc OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset;call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset);havoc OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset;
[2025-02-05 16:25:28,620 INFO  L?                        ?]: Removed 346 outVars from TransFormulas that were not future-live.
[2025-02-05 16:25:28,621 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-05 16:25:28,658 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-05 16:25:28,659 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-05 16:25:28,659 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:25:28 BoogieIcfgContainer
[2025-02-05 16:25:28,661 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-05 16:25:28,663 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-05 16:25:28,663 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-05 16:25:28,667 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-05 16:25:28,667 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:25:21" (1/3) ...
[2025-02-05 16:25:28,667 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a8378ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:25:28, skipping insertion in model container
[2025-02-05 16:25:28,667 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22" (2/3) ...
[2025-02-05 16:25:28,668 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a8378ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:25:28, skipping insertion in model container
[2025-02-05 16:25:28,668 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:25:28" (3/3) ...
[2025-02-05 16:25:28,668 INFO  L128   eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-1.c
[2025-02-05 16:25:28,678 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-05 16:25:28,681 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_nxt.1.M4-1.c that has 17 procedures, 1478 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-05 16:25:28,787 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-05 16:25:28,800 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;@1d505fe8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-05 16:25:28,800 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-05 16:25:28,811 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1478 states, 847 states have (on average 1.2609208972845336) internal successors, (1068), 976 states have internal predecessors, (1068), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613)
[2025-02-05 16:25:29,544 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8471
[2025-02-05 16:25:29,544 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 16:25:29,547 INFO  L218           NwaCegarLoop]: trace histogram [964, 964, 964, 108, 108, 108, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 16:25:29,548 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 16:25:29,554 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 16:25:29,555 INFO  L85        PathProgramCache]: Analyzing trace with hash -1457908826, now seen corresponding path program 1 times
[2025-02-05 16:25:29,560 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 16:25:29,561 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713830392]
[2025-02-05 16:25:29,562 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 16:25:29,562 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 16:25:31,062 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8470 statements into 1 equivalence classes.
[2025-02-05 16:25:31,801 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8470 of 8470 statements.
[2025-02-05 16:25:31,802 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 16:25:31,802 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 16:25:41,009 INFO  L134       CoverageAnalysis]: Checked inductivity of 1951692 backedges. 0 proven. 1132 refuted. 0 times theorem prover too weak. 1950560 trivial. 0 not checked.
[2025-02-05 16:25:41,009 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 16:25:41,009 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713830392]
[2025-02-05 16:25:41,010 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713830392] provided 0 perfect and 1 imperfect interpolant sequences
[2025-02-05 16:25:41,010 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450408826]
[2025-02-05 16:25:41,011 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 16:25:41,011 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-05 16:25:41,011 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 16:25:41,013 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-02-05 16:25:41,015 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-02-05 16:25:43,603 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8470 statements into 1 equivalence classes.
[2025-02-05 16:25:46,234 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8470 of 8470 statements.
[2025-02-05 16:25:46,235 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 16:25:46,235 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 16:25:46,380 INFO  L256         TraceCheckSpWp]: Trace formula consists of 28073 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-02-05 16:25:46,600 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-02-05 16:25:47,117 INFO  L134       CoverageAnalysis]: Checked inductivity of 1951692 backedges. 631726 proven. 0 refuted. 0 times theorem prover too weak. 1319966 trivial. 0 not checked.
[2025-02-05 16:25:47,118 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-02-05 16:25:47,118 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450408826] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 16:25:47,119 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-02-05 16:25:47,120 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3
[2025-02-05 16:25:47,121 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408786131]
[2025-02-05 16:25:47,122 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 16:25:47,133 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 16:25:47,133 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 16:25:47,156 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 16:25:47,157 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 16:25:47,162 INFO  L87              Difference]: Start difference. First operand  has 1478 states, 847 states have (on average 1.2609208972845336) internal successors, (1068), 976 states have internal predecessors, (1068), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613) Second operand  has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 2 states have call successors, (486), 2 states have call predecessors, (486), 2 states have return successors, (486), 2 states have call predecessors, (486), 2 states have call successors, (486)
[2025-02-05 16:25:47,400 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 16:25:47,401 INFO  L93              Difference]: Finished difference Result 2951 states and 5179 transitions.
[2025-02-05 16:25:47,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 16:25:47,404 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 2 states have call successors, (486), 2 states have call predecessors, (486), 2 states have return successors, (486), 2 states have call predecessors, (486), 2 states have call successors, (486) Word has length 8470
[2025-02-05 16:25:47,412 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 16:25:47,445 INFO  L225             Difference]: With dead ends: 2951
[2025-02-05 16:25:47,448 INFO  L226             Difference]: Without dead ends: 1473
[2025-02-05 16:25:47,474 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8472 GetRequests, 8471 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 16:25:47,477 INFO  L435           NwaCegarLoop]: 2290 mSDtfsCounter, 0 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4570 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-02-05 16:25:47,478 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4570 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-02-05 16:25:47,494 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1473 states.
[2025-02-05 16:25:47,779 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1473.
[2025-02-05 16:25:47,782 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1473 states, 843 states have (on average 1.2574139976275207) internal successors, (1060), 971 states have internal predecessors, (1060), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613)
[2025-02-05 16:25:47,824 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2286 transitions.
[2025-02-05 16:25:47,832 INFO  L78                 Accepts]: Start accepts. Automaton has 1473 states and 2286 transitions. Word has length 8470
[2025-02-05 16:25:47,839 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 16:25:47,840 INFO  L471      AbstractCegarLoop]: Abstraction has 1473 states and 2286 transitions.
[2025-02-05 16:25:47,841 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 2 states have call successors, (486), 2 states have call predecessors, (486), 2 states have return successors, (486), 2 states have call predecessors, (486), 2 states have call successors, (486)
[2025-02-05 16:25:47,841 INFO  L276                IsEmpty]: Start isEmpty. Operand 1473 states and 2286 transitions.
[2025-02-05 16:25:48,282 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9239
[2025-02-05 16:25:48,282 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 16:25:48,284 INFO  L218           NwaCegarLoop]: trace histogram [964, 964, 964, 192, 192, 108, 108, 108, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 16:25:48,345 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2025-02-05 16:25:48,485 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2025-02-05 16:25:48,486 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 16:25:48,487 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 16:25:48,489 INFO  L85        PathProgramCache]: Analyzing trace with hash -1820936026, now seen corresponding path program 1 times
[2025-02-05 16:25:48,489 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 16:25:48,489 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142514570]
[2025-02-05 16:25:48,489 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 16:25:48,489 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 16:25:49,611 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9238 statements into 1 equivalence classes.
[2025-02-05 16:25:52,042 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9238 of 9238 statements.
[2025-02-05 16:25:52,042 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 16:25:52,042 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 16:26:24,578 INFO  L134       CoverageAnalysis]: Checked inductivity of 2015820 backedges. 0 proven. 2133 refuted. 0 times theorem prover too weak. 2013687 trivial. 0 not checked.
[2025-02-05 16:26:24,578 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 16:26:24,579 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142514570]
[2025-02-05 16:26:24,579 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142514570] provided 0 perfect and 1 imperfect interpolant sequences
[2025-02-05 16:26:24,580 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900959666]
[2025-02-05 16:26:24,580 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 16:26:24,580 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-05 16:26:24,580 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 16:26:24,583 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-02-05 16:26:24,623 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-02-05 16:26:27,353 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9238 statements into 1 equivalence classes.
[2025-02-05 16:26:30,671 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9238 of 9238 statements.
[2025-02-05 16:26:30,672 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 16:26:30,672 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 16:26:30,856 INFO  L256         TraceCheckSpWp]: Trace formula consists of 31145 conjuncts, 47 conjuncts are in the unsatisfiable core
[2025-02-05 16:26:31,143 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-02-05 16:26:31,793 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 1
[2025-02-05 16:26:31,887 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 1
[2025-02-05 16:26:35,675 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9
[2025-02-05 16:26:35,682 INFO  L378             Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9
[2025-02-05 16:26:36,195 INFO  L134       CoverageAnalysis]: Checked inductivity of 2015820 backedges. 432822 proven. 830 refuted. 0 times theorem prover too weak. 1582168 trivial. 0 not checked.
[2025-02-05 16:26:36,195 INFO  L312         TraceCheckSpWp]: Computing backward predicates...