./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.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_nxt.3.M4.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 17a6dd75e60112a7f7af78ca3548f5d14d93f1e305c1fc4e0acf996889e6f17b
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-798a7b3-m
[2025-03-03 14:57:28,337 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-03-03 14:57:28,380 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-03-03 14:57:28,384 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-03-03 14:57:28,384 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-03-03 14:57:28,408 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-03-03 14:57:28,410 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-03-03 14:57:28,410 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-03-03 14:57:28,410 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-03-03 14:57:28,411 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-03-03 14:57:28,411 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-03-03 14:57:28,411 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-03-03 14:57:28,411 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-03-03 14:57:28,412 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-03-03 14:57:28,412 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-03-03 14:57:28,412 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-03-03 14:57:28,412 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-03-03 14:57:28,412 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-03-03 14:57:28,413 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-03-03 14:57:28,413 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-03-03 14:57:28,414 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-03-03 14:57:28,414 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 14:57:28,414 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-03-03 14:57:28,414 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-03-03 14:57:28,414 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-03-03 14:57:28,414 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-03-03 14:57:28,415 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-03-03 14:57:28,415 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-03-03 14:57:28,415 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-03-03 14:57:28,415 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-03-03 14:57:28,415 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-03-03 14:57:28,415 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-03-03 14:57:28,415 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 -> 17a6dd75e60112a7f7af78ca3548f5d14d93f1e305c1fc4e0acf996889e6f17b
[2025-03-03 14:57:28,635 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-03-03 14:57:28,645 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-03-03 14:57:28,648 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-03-03 14:57:28,649 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-03-03 14:57:28,649 INFO  L274        PluginConnector]: CDTParser initialized
[2025-03-03 14:57:28,650 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c
[2025-03-03 14:57:29,804 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488980812/2abf5055e9fe46c39ff6ecc4d8a8c954/FLAGbaca8a69e
[2025-03-03 14:57:30,374 INFO  L384              CDTParser]: Found 1 translation units.
[2025-03-03 14:57:30,375 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M4.c
[2025-03-03 14:57:30,407 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488980812/2abf5055e9fe46c39ff6ecc4d8a8c954/FLAGbaca8a69e
[2025-03-03 14:57:30,888 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/488980812/2abf5055e9fe46c39ff6ecc4d8a8c954
[2025-03-03 14:57:30,890 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-03-03 14:57:30,891 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-03-03 14:57:30,892 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-03-03 14:57:30,892 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-03-03 14:57:30,895 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-03-03 14:57:30,896 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:57:30" (1/1) ...
[2025-03-03 14:57:30,897 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@341206c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:30, skipping insertion in model container
[2025-03-03 14:57:30,898 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:57:30" (1/1) ...
[2025-03-03 14:57:31,003 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-03-03 14:57:31,288 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_nxt.3.M4.c[2275,2288]
[2025-03-03 14:57:32,120 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 14:57:32,166 INFO  L200         MainTranslator]: Completed pre-run
[2025-03-03 14:57:32,172 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok3.i","-S") [51]
[2025-03-03 14:57:32,178 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_nxt.3.M4.c[2275,2288]
[2025-03-03 14:57:32,897 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-03-03 14:57:32,935 INFO  L204         MainTranslator]: Completed translation
[2025-03-03 14:57:32,936 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32 WrapperNode
[2025-03-03 14:57:32,937 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-03-03 14:57:32,938 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-03-03 14:57:32,938 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-03-03 14:57:32,938 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-03-03 14:57:32,943 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:33,258 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:34,699 INFO  L138                Inliner]: procedures = 63, calls = 19692, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 42452
[2025-03-03 14:57:34,700 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-03-03 14:57:34,700 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-03-03 14:57:34,701 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-03-03 14:57:34,701 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-03-03 14:57:34,707 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:34,708 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:34,931 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:35,157 INFO  L175           MemorySlicer]: Split 15291 memory accesses to 22 slices as follows [2, 8, 194, 17, 2, 9, 2784, 3812, 2400, 1676, 1252, 852, 325, 429, 325, 429, 7, 325, 429, 8, 4, 2]. 25 percent of accesses are in the largest equivalence class. The 880 initializations are split as follows [2, 0, 0, 8, 0, 4, 96, 96, 8, 8, 4, 4, 108, 108, 108, 108, 2, 108, 108, 0, 0, 0]. The 977 writes are split as follows [0, 4, 98, 1, 1, 1, 96, 96, 8, 8, 4, 4, 109, 107, 109, 107, 3, 109, 107, 4, 0, 1].
[2025-03-03 14:57:35,158 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:35,158 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:35,857 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:35,919 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:35,983 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:36,030 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:36,282 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-03-03 14:57:36,287 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-03-03 14:57:36,287 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-03-03 14:57:36,287 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-03-03 14:57:36,289 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (1/1) ...
[2025-03-03 14:57:36,296 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-03-03 14:57:36,313 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 14:57:36,337 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 14:57:36,342 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 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t2
[2025-03-03 14:57:36,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode
[2025-03-03 14:57:36,377 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#0
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#1
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#2
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#3
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#4
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#5
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#6
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#7
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#8
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#9
[2025-03-03 14:57:36,377 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#10
[2025-03-03 14:57:36,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#11
[2025-03-03 14:57:36,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#12
[2025-03-03 14:57:36,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#13
[2025-03-03 14:57:36,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#14
[2025-03-03 14:57:36,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#15
[2025-03-03 14:57:36,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#16
[2025-03-03 14:57:36,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#17
[2025-03-03 14:57:36,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#18
[2025-03-03 14:57:36,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#19
[2025-03-03 14:57:36,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#20
[2025-03-03 14:57:36,378 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#21
[2025-03-03 14:57:36,381 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-03-03 14:57:36,381 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t0
[2025-03-03 14:57:36,381 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0
[2025-03-03 14:57:36,381 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t1
[2025-03-03 14:57:36,381 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1
[2025-03-03 14:57:36,381 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag
[2025-03-03 14:57:36,381 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag
[2025-03-03 14:57:36,381 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag
[2025-03-03 14:57:36,381 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag
[2025-03-03 14:57:36,381 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2025-03-03 14:57:36,381 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2025-03-03 14:57:36,381 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2025-03-03 14:57:36,381 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#4
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#5
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#6
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#7
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#8
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#9
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#10
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#11
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#12
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#13
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#14
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#15
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#16
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#17
[2025-03-03 14:57:36,382 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#18
[2025-03-03 14:57:36,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#19
[2025-03-03 14:57:36,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#20
[2025-03-03 14:57:36,383 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#21
[2025-03-03 14:57:36,383 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_count
[2025-03-03 14:57:36,383 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count
[2025-03-03 14:57:36,383 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor
[2025-03-03 14:57:36,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor
[2025-03-03 14:57:36,384 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-03-03 14:57:36,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-03-03 14:57:36,384 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-03-03 14:57:36,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-03-03 14:57:36,384 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-03-03 14:57:36,384 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background
[2025-03-03 14:57:36,384 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background
[2025-03-03 14:57:36,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2025-03-03 14:57:36,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2025-03-03 14:57:36,384 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2025-03-03 14:57:36,387 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2025-03-03 14:57:36,387 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#4
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#5
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#6
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#7
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#8
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#9
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#10
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#11
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#12
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#13
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#14
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#15
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#16
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#17
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#18
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#19
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#20
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#21
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2025-03-03 14:57:36,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure assert
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed
[2025-03-03 14:57:36,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag
[2025-03-03 14:57:36,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-03-03 14:57:36,388 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2025-03-03 14:57:36,388 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#8
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#9
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#10
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#11
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#12
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#13
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#14
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#15
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#16
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#17
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#18
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#19
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#20
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#21
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-03-03 14:57:36,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms
[2025-03-03 14:57:36,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_get_count
[2025-03-03 14:57:36,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count
[2025-03-03 14:57:36,389 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode
[2025-03-03 14:57:36,389 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode
[2025-03-03 14:57:38,100 INFO  L256             CfgBuilder]: Building ICFG
[2025-03-03 14:57:38,101 INFO  L286             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-03-03 14:57:38,377 INFO  L1325  $ProcedureCfgBuilder]: dead code at ProgramPoint L225: 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 14:57:38,378 INFO  L1325  $ProcedureCfgBuilder]: dead code at ProgramPoint L93: 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 14:58:03,411 INFO  L?                        ?]: Removed 303 outVars from TransFormulas that were not future-live.
[2025-03-03 14:58:03,411 INFO  L307             CfgBuilder]: Performing block encoding
[2025-03-03 14:58:03,531 INFO  L331             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-03-03 14:58:03,531 INFO  L336             CfgBuilder]: Removed 0 assume(true) statements.
[2025-03-03 14:58:03,531 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:58:03 BoogieIcfgContainer
[2025-03-03 14:58:03,532 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-03-03 14:58:03,534 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-03-03 14:58:03,534 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-03-03 14:58:03,538 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-03-03 14:58:03,538 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 02:57:30" (1/3) ...
[2025-03-03 14:58:03,539 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c971cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:58:03, skipping insertion in model container
[2025-03-03 14:58:03,540 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:57:32" (2/3) ...
[2025-03-03 14:58:03,541 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c971cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:58:03, skipping insertion in model container
[2025-03-03 14:58:03,541 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:58:03" (3/3) ...
[2025-03-03 14:58:03,543 INFO  L128   eAbstractionObserver]: Analyzing ICFG rekcba_nxt.3.M4.c
[2025-03-03 14:58:03,553 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-03-03 14:58:03,556 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG rekcba_nxt.3.M4.c that has 19 procedures, 12488 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-03-03 14:58:03,775 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-03-03 14:58:03,782 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;@7bb8a450, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-03-03 14:58:03,783 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-03-03 14:58:03,811 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 12488 states, 8125 states have (on average 1.3113846153846154) internal successors, (10655), 8237 states have internal predecessors, (10655), 4343 states have call successors, (4343), 18 states have call predecessors, (4343), 18 states have return successors, (4343), 4341 states have call predecessors, (4343), 4343 states have call successors, (4343)
[2025-03-03 14:58:04,221 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5259
[2025-03-03 14:58:04,224 INFO  L210           NwaCegarLoop]: Found error trace
[2025-03-03 14:58:04,227 INFO  L218           NwaCegarLoop]: trace histogram [444, 444, 444, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:58:04,228 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-03-03 14:58:04,233 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-03-03 14:58:04,235 INFO  L85        PathProgramCache]: Analyzing trace with hash 297040045, now seen corresponding path program 1 times
[2025-03-03 14:58:04,240 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-03-03 14:58:04,240 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60920595]
[2025-03-03 14:58:04,241 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 14:58:04,242 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-03-03 14:58:21,787 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5258 statements into 1 equivalence classes.
[2025-03-03 14:58:22,003 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5258 of 5258 statements.
[2025-03-03 14:58:22,003 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 14:58:22,003 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:58:26,859 INFO  L134       CoverageAnalysis]: Checked inductivity of 393384 backedges. 0 proven. 886 refuted. 0 times theorem prover too weak. 392498 trivial. 0 not checked.
[2025-03-03 14:58:26,860 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-03-03 14:58:26,860 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60920595]
[2025-03-03 14:58:26,860 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60920595] provided 0 perfect and 1 imperfect interpolant sequences
[2025-03-03 14:58:26,860 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948515499]
[2025-03-03 14:58:26,861 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-03-03 14:58:26,861 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-03-03 14:58:26,861 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2025-03-03 14:58:26,863 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 14:58:26,866 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 14:58:46,509 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5258 statements into 1 equivalence classes.
[2025-03-03 14:58:48,638 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5258 of 5258 statements.
[2025-03-03 14:58:48,638 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-03-03 14:58:48,639 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-03-03 14:58:48,745 INFO  L256         TraceCheckSpWp]: Trace formula consists of 16602 conjuncts, 1 conjuncts are in the unsatisfiable core
[2025-03-03 14:58:48,866 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-03-03 14:58:49,082 INFO  L134       CoverageAnalysis]: Checked inductivity of 393384 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 392498 trivial. 0 not checked.
[2025-03-03 14:58:49,083 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-03-03 14:58:49,083 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948515499] provided 1 perfect and 0 imperfect interpolant sequences
[2025-03-03 14:58:49,083 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-03-03 14:58:49,084 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2025-03-03 14:58:49,085 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361507358]
[2025-03-03 14:58:49,086 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-03-03 14:58:49,095 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2025-03-03 14:58:49,096 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-03-03 14:58:49,114 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2025-03-03 14:58:49,115 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2025-03-03 14:58:49,151 INFO  L87              Difference]: Start difference. First operand  has 12488 states, 8125 states have (on average 1.3113846153846154) internal successors, (10655), 8237 states have internal predecessors, (10655), 4343 states have call successors, (4343), 18 states have call predecessors, (4343), 18 states have return successors, (4343), 4341 states have call predecessors, (4343), 4343 states have call successors, (4343) Second operand  has 2 states, 2 states have (on average 1521.0) internal successors, (3042), 2 states have internal predecessors, (3042), 2 states have call successors, (445), 2 states have call predecessors, (445), 1 states have return successors, (444), 1 states have call predecessors, (444), 2 states have call successors, (444)
[2025-03-03 14:58:49,596 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-03-03 14:58:49,596 INFO  L93              Difference]: Finished difference Result 24971 states and 43001 transitions.
[2025-03-03 14:58:49,597 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2025-03-03 14:58:49,604 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 1521.0) internal successors, (3042), 2 states have internal predecessors, (3042), 2 states have call successors, (445), 2 states have call predecessors, (445), 1 states have return successors, (444), 1 states have call predecessors, (444), 2 states have call successors, (444) Word has length 5258
[2025-03-03 14:58:49,604 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-03-03 14:58:49,708 INFO  L225             Difference]: With dead ends: 24971
[2025-03-03 14:58:49,708 INFO  L226             Difference]: Without dead ends: 12480
[2025-03-03 14:58:49,787 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5259 GetRequests, 5259 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 14:58:49,790 INFO  L435           NwaCegarLoop]: 19339 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, 19339 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 14:58:49,791 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19339 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-03-03 14:58:49,823 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12480 states.