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


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


Checking for ERROR reachability
Using default analysis
Version 798a7b37
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 7236cecbd92b361c7dde7b9feb16da195b1cfc80435e4a8a50c2b2f61605ff24
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-798a7b3-m
[2025-03-03 14:55:11,378 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-03 14:55:11,429 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-03-03 14:55:11,434 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-03 14:55:11,435 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-03 14:55:11,454 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-03 14:55:11,455 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-03 14:55:11,455 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-03 14:55:11,456 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-03 14:55:11,456 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-03 14:55:11,456 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-03 14:55:11,456 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-03 14:55:11,456 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-03 14:55:11,457 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-03 14:55:11,457 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-03 14:55:11,458 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-03 14:55:11,458 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-03 14:55:11,458 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-03 14:55:11,458 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-03 14:55:11,458 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-03 14:55:11,458 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-03 14:55:11,458 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-03 14:55:11,458 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-03 14:55:11,458 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-03 14:55:11,458 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-03 14:55:11,458 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-03 14:55:11,458 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-03 14:55:11,459 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-03 14:55:11,459 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-03 14:55:11,459 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-03 14:55:11,459 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-03 14:55:11,459 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-03 14:55:11,459 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 14:55:11,460 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-03 14:55:11,460 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-03 14:55:11,460 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-03 14:55:11,460 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-03 14:55:11,460 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-03 14:55:11,460 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-03 14:55:11,460 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-03 14:55:11,460 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-03 14:55:11,460 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-03 14:55:11,460 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-03 14:55:11,461 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/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 -> 7236cecbd92b361c7dde7b9feb16da195b1cfc80435e4a8a50c2b2f61605ff24
[2025-03-03 14:55:11,675 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-03 14:55:11,681 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-03 14:55:11,683 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-03 14:55:11,683 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-03 14:55:11,684 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-03 14:55:11,684 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-1.c
[2025-03-03 14:55:12,895 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/365ea398e/5f87b0060edd475db79aa642336e3623/FLAG8bca00066
[2025-03-03 14:55:13,398 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-03 14:55:13,400 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-1.c
[2025-03-03 14:55:13,434 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/365ea398e/5f87b0060edd475db79aa642336e3623/FLAG8bca00066
[2025-03-03 14:55:13,469 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/365ea398e/5f87b0060edd475db79aa642336e3623
[2025-03-03 14:55:13,470 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-03 14:55:13,471 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-03 14:55:13,472 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-03 14:55:13,472 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-03 14:55:13,475 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-03 14:55:13,476 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:55:13" (1/1) ...
[2025-03-03 14:55:13,476 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35bbe078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:13, skipping insertion in model container
[2025-03-03 14:55:13,476 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:55:13" (1/1) ...
[2025-03-03 14:55:13,567 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-03 14:55:13,816 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-1.c[2313,2326]
[2025-03-03 14:55:14,646 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 14:55:14,675 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-03 14:55:14,681 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.ok1.i","-S") [52]
[2025-03-03 14:55:14,688 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-1.c[2313,2326]
[2025-03-03 14:55:15,451 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 14:55:15,500 INFO  L204         MainTranslator]: Completed translation
[2025-03-03 14:55:15,501 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15 WrapperNode
[2025-03-03 14:55:15,502 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-03 14:55:15,503 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-03 14:55:15,503 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-03 14:55:15,503 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-03 14:55:15,509 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:15,840 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:17,150 INFO  L138                Inliner]: procedures = 63, calls = 20397, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 43682
[2025-03-03 14:55:17,151 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-03 14:55:17,152 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-03 14:55:17,152 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-03 14:55:17,152 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-03 14:55:17,158 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:17,158 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:17,487 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:17,657 INFO  L175           MemorySlicer]: Split 15933 memory accesses to 24 slices as follows [2, 8, 194, 2, 17, 9, 2784, 3760, 2408, 1672, 2, 1188, 852, 325, 429, 325, 429, 325, 4, 429, 325, 8, 7, 429]. 24 percent of accesses are in the largest equivalence class. The 1096 initializations are split as follows [2, 0, 0, 0, 8, 4, 96, 96, 8, 8, 0, 4, 4, 108, 108, 108, 108, 108, 0, 108, 108, 0, 2, 108]. The 1193 writes are split as follows [0, 4, 98, 1, 1, 1, 96, 96, 8, 8, 1, 4, 4, 109, 107, 109, 107, 109, 0, 107, 109, 4, 3, 107].
[2025-03-03 14:55:17,657 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:17,657 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:18,292 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:18,334 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:18,399 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:18,458 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:18,669 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-03 14:55:18,670 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-03 14:55:18,670 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-03 14:55:18,670 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-03 14:55:18,671 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (1/1) ...
[2025-03-03 14:55:18,675 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 14:55:18,686 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 14:55:18,698 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-03-03 14:55:18,701 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-03-03 14:55:18,718 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-03 14:55:18,718 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward
[2025-03-03 14:55:18,718 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward
[2025-03-03 14:55:18,718 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t2
[2025-03-03 14:55:18,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode
[2025-03-03 14:55:18,719 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#0
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#1
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#2
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#3
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#4
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#5
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#6
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#7
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#8
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#9
[2025-03-03 14:55:18,719 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#10
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#11
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#12
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#13
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#14
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#15
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#16
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#17
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#18
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#19
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#20
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#21
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#22
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#23
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t0
[2025-03-03 14:55:18,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t1
[2025-03-03 14:55:18,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag
[2025-03-03 14:55:18,720 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2025-03-03 14:55:18,720 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#4
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#5
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#6
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#7
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#8
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#9
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#10
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#11
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#12
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#13
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#14
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#15
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#16
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#17
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#18
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#19
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#20
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#21
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#22
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#23
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_count
[2025-03-03 14:55:18,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor
[2025-03-03 14:55:18,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn
[2025-03-03 14:55:18,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-03-03 14:55:18,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-03-03 14:55:18,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3
[2025-03-03 14:55:18,721 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-03-03 14:55:18,721 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#4
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#5
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#6
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#7
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#8
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#9
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#10
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#11
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#12
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#13
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#14
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#15
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#16
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#17
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#18
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#19
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#20
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#21
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#22
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#23
[2025-03-03 14:55:18,722 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2025-03-03 14:55:18,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure assert
[2025-03-03 14:55:18,723 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed
[2025-03-03 14:55:18,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed
[2025-03-03 14:55:18,723 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward
[2025-03-03 14:55:18,723 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag
[2025-03-03 14:55:18,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-03-03 14:55:18,724 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#8
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#9
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#10
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#11
[2025-03-03 14:55:18,724 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#12
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#13
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#14
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#15
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#16
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#17
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#18
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#19
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#20
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#21
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#22
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#23
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-03 14:55:18,725 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms
[2025-03-03 14:55:18,725 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms
[2025-03-03 14:55:18,725 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_get_count
[2025-03-03 14:55:18,725 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count
[2025-03-03 14:55:18,726 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode
[2025-03-03 14:55:18,726 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode
[2025-03-03 14:55:18,726 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn
[2025-03-03 14:55:18,726 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn
[2025-03-03 14:55:20,111 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-03 14:55:20,113 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-03 14:55:20,410 INFO  L1325  $ProcedureCfgBuilder]: dead code at ProgramPoint L226: 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;
[2025-03-03 14:55:20,410 INFO  L1325  $ProcedureCfgBuilder]: dead code at ProgramPoint L94: 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;
[2025-03-03 14:55:44,731 INFO  L?                        ?]: Removed 330 outVars from TransFormulas that were not future-live.
[2025-03-03 14:55:44,731 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-03 14:55:44,864 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-03 14:55:44,864 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-03 14:55:44,865 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:55:44 BoogieIcfgContainer
[2025-03-03 14:55:44,865 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-03 14:55:44,867 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-03 14:55:44,868 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-03 14:55:44,871 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-03 14:55:44,871 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 02:55:13" (1/3) ...
[2025-03-03 14:55:44,872 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571442f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:55:44, skipping insertion in model container
[2025-03-03 14:55:44,872 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:55:15" (2/3) ...
[2025-03-03 14:55:44,872 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571442f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:55:44, skipping insertion in model container
[2025-03-03 14:55:44,872 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:55:44" (3/3) ...
[2025-03-03 14:55:44,873 INFO  L128   eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M4-1.c
[2025-03-03 14:55:44,883 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-03 14:55:44,885 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG rekcba_aso.1.M4-1.c that has 22 procedures, 12639 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-03 14:55:45,129 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-03 14:55:45,139 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;@7157a10e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-03 14:55:45,140 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-03 14:55:45,170 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 12639 states, 8208 states have (on average 1.3096978557504872) internal successors, (10750), 8321 states have internal predecessors, (10750), 4408 states have call successors, (4408), 21 states have call predecessors, (4408), 21 states have return successors, (4408), 4405 states have call predecessors, (4408), 4408 states have call successors, (4408)
[2025-03-03 14:55:45,745 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5901
[2025-03-03 14:55:45,745 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 14:55:45,748 INFO  L218           NwaCegarLoop]: trace histogram [551, 551, 551, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2025-03-03 14:55:45,749 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 14:55:45,754 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 14:55:45,756 INFO  L85        PathProgramCache]: Analyzing trace with hash 405311800, now seen corresponding path program 1 times
[2025-03-03 14:55:45,761 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 14:55:45,761 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172288559]
[2025-03-03 14:55:45,762 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 14:55:45,763 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 14:56:09,112 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5900 statements into 1 equivalence classes.
[2025-03-03 14:56:09,329 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5900 of 5900 statements.
[2025-03-03 14:56:09,330 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 14:56:09,330 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:56:14,049 INFO  L134       CoverageAnalysis]: Checked inductivity of 606100 backedges. 0 proven. 1100 refuted. 0 times theorem prover too weak. 605000 trivial. 0 not checked.
[2025-03-03 14:56:14,049 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 14:56:14,050 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172288559]
[2025-03-03 14:56:14,050 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172288559] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 14:56:14,050 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1217473272]
[2025-03-03 14:56:14,051 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 14:56:14,052 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 14:56:14,052 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 14:56:14,054 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-03-03 14:56:14,055 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-03-03 14:56:38,904 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5900 statements into 1 equivalence classes.
[2025-03-03 14:56:40,694 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5900 of 5900 statements.
[2025-03-03 14:56:40,694 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 14:56:40,697 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:56:40,800 INFO  L256         TraceCheckSpWp]: Trace formula consists of 19196 conjuncts, 1 conjuncts are in the unsatisfiable core
[2025-03-03 14:56:40,928 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 14:56:41,177 INFO  L134       CoverageAnalysis]: Checked inductivity of 606100 backedges. 1100 proven. 0 refuted. 0 times theorem prover too weak. 605000 trivial. 0 not checked.
[2025-03-03 14:56:41,178 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-03 14:56:41,178 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1217473272] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 14:56:41,178 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-03 14:56:41,179 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2025-03-03 14:56:41,180 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358906780]
[2025-03-03 14:56:41,180 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 14:56:41,191 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-03-03 14:56:41,192 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 14:56:41,211 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-03-03 14:56:41,211 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-03 14:56:41,248 INFO  L87              Difference]: Start difference. First operand  has 12639 states, 8208 states have (on average 1.3096978557504872) internal successors, (10750), 8321 states have internal predecessors, (10750), 4408 states have call successors, (4408), 21 states have call predecessors, (4408), 21 states have return successors, (4408), 4405 states have call predecessors, (4408), 4408 states have call successors, (4408) Second operand  has 2 states, 2 states have (on average 1574.5) internal successors, (3149), 2 states have internal predecessors, (3149), 2 states have call successors, (552), 2 states have call predecessors, (552), 1 states have return successors, (551), 1 states have call predecessors, (551), 2 states have call successors, (551)
[2025-03-03 14:56:41,673 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 14:56:41,673 INFO  L93              Difference]: Finished difference Result 25273 states and 43514 transitions.
[2025-03-03 14:56:41,675 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-03-03 14:56:41,680 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 1574.5) internal successors, (3149), 2 states have internal predecessors, (3149), 2 states have call successors, (552), 2 states have call predecessors, (552), 1 states have return successors, (551), 1 states have call predecessors, (551), 2 states have call successors, (551) Word has length 5900
[2025-03-03 14:56:41,680 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 14:56:41,776 INFO  L225             Difference]: With dead ends: 25273
[2025-03-03 14:56:41,776 INFO  L226             Difference]: Without dead ends: 12631
[2025-03-03 14:56:41,844 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5901 GetRequests, 5901 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-03 14:56:41,846 INFO  L435           NwaCegarLoop]: 19564 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19564 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-03-03 14:56:41,848 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19564 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-03-03 14:56:41,877 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12631 states.