./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-2.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version c00e63dc
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3815bc174681e4b15285bf80b6019df1e4400d301be17580b1900d66fa790fc8
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-c00e63d-m
[2025-02-05 16:25:20,402 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2025-02-05 16:25:20,478 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2025-02-05 16:25:20,484 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2025-02-05 16:25:20,487 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2025-02-05 16:25:20,514 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2025-02-05 16:25:20,516 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2025-02-05 16:25:20,516 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2025-02-05 16:25:20,517 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2025-02-05 16:25:20,517 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2025-02-05 16:25:20,518 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2025-02-05 16:25:20,518 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2025-02-05 16:25:20,518 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2025-02-05 16:25:20,518 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2025-02-05 16:25:20,519 INFO  L153        SettingsManager]:  * Use SBE=true
[2025-02-05 16:25:20,519 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2025-02-05 16:25:20,519 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2025-02-05 16:25:20,520 INFO  L153        SettingsManager]:  * sizeof long=4
[2025-02-05 16:25:20,520 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2025-02-05 16:25:20,520 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2025-02-05 16:25:20,520 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2025-02-05 16:25:20,520 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2025-02-05 16:25:20,520 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2025-02-05 16:25:20,520 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2025-02-05 16:25:20,520 INFO  L153        SettingsManager]:  * sizeof long double=12
[2025-02-05 16:25:20,521 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2025-02-05 16:25:20,521 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2025-02-05 16:25:20,521 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2025-02-05 16:25:20,521 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2025-02-05 16:25:20,521 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2025-02-05 16:25:20,521 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2025-02-05 16:25:20,521 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2025-02-05 16:25:20,521 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 16:25:20,522 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2025-02-05 16:25:20,522 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2025-02-05 16:25:20,522 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2025-02-05 16:25:20,523 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2025-02-05 16:25:20,523 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2025-02-05 16:25:20,523 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2025-02-05 16:25:20,523 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2025-02-05 16:25:20,523 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2025-02-05 16:25:20,523 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2025-02-05 16:25:20,523 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2025-02-05 16:25:20,523 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3815bc174681e4b15285bf80b6019df1e4400d301be17580b1900d66fa790fc8
[2025-02-05 16:25:20,832 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2025-02-05 16:25:20,846 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2025-02-05 16:25:20,848 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2025-02-05 16:25:20,850 INFO  L270        PluginConnector]: Initializing CDTParser...
[2025-02-05 16:25:20,850 INFO  L274        PluginConnector]: CDTParser initialized
[2025-02-05 16:25:20,851 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-2.c
[2025-02-05 16:25:22,183 INFO  L533              CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b8ae60f77/4fd7ab6cccb747819d5be50cc9ece533/FLAG512750b81
[2025-02-05 16:25:22,637 INFO  L384              CDTParser]: Found 1 translation units.
[2025-02-05 16:25:22,638 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-2.c
[2025-02-05 16:25:22,667 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b8ae60f77/4fd7ab6cccb747819d5be50cc9ece533/FLAG512750b81
[2025-02-05 16:25:22,753 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b8ae60f77/4fd7ab6cccb747819d5be50cc9ece533
[2025-02-05 16:25:22,758 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2025-02-05 16:25:22,759 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2025-02-05 16:25:22,762 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2025-02-05 16:25:22,763 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2025-02-05 16:25:22,767 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2025-02-05 16:25:22,768 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,769 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f6cffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:22, skipping insertion in model container
[2025-02-05 16:25:22,771 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 04:25:22" (1/1) ...
[2025-02-05 16:25:22,827 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2025-02-05 16:25:22,986 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-2.c[1509,1522]
[2025-02-05 16:25:23,309 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 16:25:23,336 INFO  L200         MainTranslator]: Completed pre-run
[2025-02-05 16:25:23,346 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok1.i","-S") [38]
[2025-02-05 16:25:23,351 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-2.c[1509,1522]
[2025-02-05 16:25:23,533 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2025-02-05 16:25:23,563 INFO  L204         MainTranslator]: Completed translation
[2025-02-05 16:25:23,564 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23 WrapperNode
[2025-02-05 16:25:23,565 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2025-02-05 16:25:23,566 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2025-02-05 16:25:23,566 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2025-02-05 16:25:23,566 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2025-02-05 16:25:23,573 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:23,638 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:23,851 INFO  L138                Inliner]: procedures = 55, calls = 2262, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4902
[2025-02-05 16:25:23,852 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2025-02-05 16:25:23,852 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2025-02-05 16:25:23,853 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2025-02-05 16:25:23,853 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2025-02-05 16:25:23,861 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:23,861 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:23,899 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:23,971 INFO  L175           MemorySlicer]: Split 1600 memory accesses to 15 slices as follows [2, 2, 277, 285, 113, 113, 187, 4, 7, 203, 186, 203, 8, 2, 8]. 18 percent of accesses are in the largest equivalence class. The 220 initializations are split as follows [2, 0, 27, 27, 27, 27, 27, 0, 2, 27, 27, 27, 0, 0, 0]. The 235 writes are split as follows [0, 1, 27, 27, 27, 27, 31, 0, 3, 26, 31, 26, 4, 1, 4].
[2025-02-05 16:25:23,971 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:23,971 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:24,063 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:24,074 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:24,093 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:24,109 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:24,140 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2025-02-05 16:25:24,142 INFO  L112        PluginConnector]: ------------------------IcfgBuilder----------------------------
[2025-02-05 16:25:24,142 INFO  L270        PluginConnector]: Initializing IcfgBuilder...
[2025-02-05 16:25:24,142 INFO  L274        PluginConnector]: IcfgBuilder initialized
[2025-02-05 16:25:24,143 INFO  L184        PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (1/1) ...
[2025-02-05 16:25:24,148 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2025-02-05 16:25:24,158 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 16:25:24,173 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2025-02-05 16:25:24,175 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2025-02-05 16:25:24,195 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2025-02-05 16:25:24,195 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t2
[2025-02-05 16:25:24,195 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2
[2025-02-05 16:25:24,195 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode
[2025-02-05 16:25:24,195 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode
[2025-02-05 16:25:24,195 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2025-02-05 16:25:24,196 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t0
[2025-02-05 16:25:24,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0
[2025-02-05 16:25:24,196 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t1
[2025-02-05 16:25:24,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1
[2025-02-05 16:25:24,196 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag
[2025-02-05 16:25:24,196 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#4
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#5
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#6
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#7
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#8
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#9
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#10
[2025-02-05 16:25:24,197 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#11
[2025-02-05 16:25:24,198 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#12
[2025-02-05 16:25:24,198 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#13
[2025-02-05 16:25:24,198 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#14
[2025-02-05 16:25:24,198 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_count
[2025-02-05 16:25:24,198 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count
[2025-02-05 16:25:24,198 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor
[2025-02-05 16:25:24,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor
[2025-02-05 16:25:24,199 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-02-05 16:25:24,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1
[2025-02-05 16:25:24,199 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-02-05 16:25:24,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2
[2025-02-05 16:25:24,199 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2025-02-05 16:25:24,199 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod
[2025-02-05 16:25:24,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod
[2025-02-05 16:25:24,199 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background
[2025-02-05 16:25:24,199 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background
[2025-02-05 16:25:24,199 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2025-02-05 16:25:24,199 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#4
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#5
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#6
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#7
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#8
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#9
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#10
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#11
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#12
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#13
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#14
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed
[2025-02-05 16:25:24,200 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2025-02-05 16:25:24,200 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2025-02-05 16:25:24,200 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2025-02-05 16:25:24,202 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#8
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#9
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#10
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#11
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#12
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#13
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#14
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2025-02-05 16:25:24,203 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2025-02-05 16:25:24,203 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms
[2025-02-05 16:25:24,204 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms
[2025-02-05 16:25:24,204 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_get_count
[2025-02-05 16:25:24,204 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count
[2025-02-05 16:25:24,204 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode
[2025-02-05 16:25:24,204 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode
[2025-02-05 16:25:24,705 INFO  L257             CfgBuilder]: Building ICFG
[2025-02-05 16:25:24,708 INFO  L287             CfgBuilder]: Building CFG for each procedure with an implementation
[2025-02-05 16:25:25,482 INFO  L1309  $ProcedureCfgBuilder]: dead code at ProgramPoint L78: call ULTIMATE.dealloc(balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset);havoc balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset;call ULTIMATE.dealloc(balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset);havoc balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset;
[2025-02-05 16:25:25,482 INFO  L1309  $ProcedureCfgBuilder]: dead code at ProgramPoint L204: call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset);havoc OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset;call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset);havoc OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset;
[2025-02-05 16:25:31,263 INFO  L?                        ?]: Removed 346 outVars from TransFormulas that were not future-live.
[2025-02-05 16:25:31,263 INFO  L308             CfgBuilder]: Performing block encoding
[2025-02-05 16:25:31,306 INFO  L332             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2025-02-05 16:25:31,307 INFO  L337             CfgBuilder]: Removed 0 assume(true) statements.
[2025-02-05 16:25:31,307 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:25:31 BoogieIcfgContainer
[2025-02-05 16:25:31,307 INFO  L131        PluginConnector]: ------------------------ END IcfgBuilder----------------------------
[2025-02-05 16:25:31,314 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2025-02-05 16:25:31,314 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2025-02-05 16:25:31,320 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2025-02-05 16:25:31,320 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 04:25:22" (1/3) ...
[2025-02-05 16:25:31,321 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b05e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:25:31, skipping insertion in model container
[2025-02-05 16:25:31,321 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 04:25:23" (2/3) ...
[2025-02-05 16:25:31,321 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b05e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 04:25:31, skipping insertion in model container
[2025-02-05 16:25:31,321 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 04:25:31" (3/3) ...
[2025-02-05 16:25:31,322 INFO  L128   eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-2.c
[2025-02-05 16:25:31,334 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2025-02-05 16:25:31,339 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_nxt.1.M4-2.c that has 17 procedures, 1478 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2025-02-05 16:25:31,449 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2025-02-05 16:25:31,460 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;@1f8a07ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2025-02-05 16:25:31,460 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2025-02-05 16:25:31,473 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 1478 states, 847 states have (on average 1.2609208972845336) internal successors, (1068), 976 states have internal predecessors, (1068), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613)
[2025-02-05 16:25:32,103 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8471
[2025-02-05 16:25:32,104 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 16:25:32,107 INFO  L218           NwaCegarLoop]: trace histogram [964, 964, 964, 108, 108, 108, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 16:25:32,108 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 16:25:32,115 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 16:25:32,116 INFO  L85        PathProgramCache]: Analyzing trace with hash -1457908826, now seen corresponding path program 1 times
[2025-02-05 16:25:32,123 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 16:25:32,126 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338415582]
[2025-02-05 16:25:32,126 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 16:25:32,127 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 16:25:34,178 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8470 statements into 1 equivalence classes.
[2025-02-05 16:25:35,114 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8470 of 8470 statements.
[2025-02-05 16:25:35,115 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 16:25:35,115 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 16:25:46,161 INFO  L134       CoverageAnalysis]: Checked inductivity of 1951692 backedges. 0 proven. 1132 refuted. 0 times theorem prover too weak. 1950560 trivial. 0 not checked.
[2025-02-05 16:25:46,162 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 16:25:46,162 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338415582]
[2025-02-05 16:25:46,163 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338415582] provided 0 perfect and 1 imperfect interpolant sequences
[2025-02-05 16:25:46,163 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162110032]
[2025-02-05 16:25:46,163 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 16:25:46,164 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-05 16:25:46,164 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 16:25:46,166 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-02-05 16:25:46,167 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2025-02-05 16:25:49,620 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8470 statements into 1 equivalence classes.
[2025-02-05 16:25:53,276 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8470 of 8470 statements.
[2025-02-05 16:25:53,276 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 16:25:53,276 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 16:25:53,421 INFO  L256         TraceCheckSpWp]: Trace formula consists of 28073 conjuncts, 2 conjuncts are in the unsatisfiable core
[2025-02-05 16:25:53,594 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-02-05 16:25:54,099 INFO  L134       CoverageAnalysis]: Checked inductivity of 1951692 backedges. 631726 proven. 0 refuted. 0 times theorem prover too weak. 1319966 trivial. 0 not checked.
[2025-02-05 16:25:54,100 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2025-02-05 16:25:54,100 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162110032] provided 1 perfect and 0 imperfect interpolant sequences
[2025-02-05 16:25:54,100 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2025-02-05 16:25:54,102 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3
[2025-02-05 16:25:54,104 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274167822]
[2025-02-05 16:25:54,104 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2025-02-05 16:25:54,118 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2025-02-05 16:25:54,119 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2025-02-05 16:25:54,144 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2025-02-05 16:25:54,145 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 16:25:54,152 INFO  L87              Difference]: Start difference. First operand  has 1478 states, 847 states have (on average 1.2609208972845336) internal successors, (1068), 976 states have internal predecessors, (1068), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613) Second operand  has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 2 states have call successors, (486), 2 states have call predecessors, (486), 2 states have return successors, (486), 2 states have call predecessors, (486), 2 states have call successors, (486)
[2025-02-05 16:25:54,530 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2025-02-05 16:25:54,531 INFO  L93              Difference]: Finished difference Result 2951 states and 5179 transitions.
[2025-02-05 16:25:54,532 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2025-02-05 16:25:54,534 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 2 states have call successors, (486), 2 states have call predecessors, (486), 2 states have return successors, (486), 2 states have call predecessors, (486), 2 states have call successors, (486) Word has length 8470
[2025-02-05 16:25:54,541 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2025-02-05 16:25:54,580 INFO  L225             Difference]: With dead ends: 2951
[2025-02-05 16:25:54,583 INFO  L226             Difference]: Without dead ends: 1473
[2025-02-05 16:25:54,613 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 8472 GetRequests, 8471 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2025-02-05 16:25:54,615 INFO  L435           NwaCegarLoop]: 2290 mSDtfsCounter, 0 mSDsluCounter, 2280 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4570 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2025-02-05 16:25:54,618 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4570 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2025-02-05 16:25:54,636 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1473 states.
[2025-02-05 16:25:54,995 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1473.
[2025-02-05 16:25:54,999 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1473 states, 843 states have (on average 1.2574139976275207) internal successors, (1060), 971 states have internal predecessors, (1060), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 514 states have call predecessors, (613), 613 states have call successors, (613)
[2025-02-05 16:25:55,029 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 2286 transitions.
[2025-02-05 16:25:55,036 INFO  L78                 Accepts]: Start accepts. Automaton has 1473 states and 2286 transitions. Word has length 8470
[2025-02-05 16:25:55,044 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2025-02-05 16:25:55,044 INFO  L471      AbstractCegarLoop]: Abstraction has 1473 states and 2286 transitions.
[2025-02-05 16:25:55,045 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 2 states have call successors, (486), 2 states have call predecessors, (486), 2 states have return successors, (486), 2 states have call predecessors, (486), 2 states have call successors, (486)
[2025-02-05 16:25:55,045 INFO  L276                IsEmpty]: Start isEmpty. Operand 1473 states and 2286 transitions.
[2025-02-05 16:25:55,523 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9239
[2025-02-05 16:25:55,523 INFO  L210           NwaCegarLoop]: Found error trace
[2025-02-05 16:25:55,525 INFO  L218           NwaCegarLoop]: trace histogram [964, 964, 964, 192, 192, 108, 108, 108, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2025-02-05 16:25:55,580 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2025-02-05 16:25:55,726 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2025-02-05 16:25:55,726 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2025-02-05 16:25:55,728 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2025-02-05 16:25:55,730 INFO  L85        PathProgramCache]: Analyzing trace with hash -1820936026, now seen corresponding path program 1 times
[2025-02-05 16:25:55,730 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2025-02-05 16:25:55,730 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253031019]
[2025-02-05 16:25:55,730 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 16:25:55,730 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2025-02-05 16:25:57,263 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9238 statements into 1 equivalence classes.
[2025-02-05 16:26:00,165 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9238 of 9238 statements.
[2025-02-05 16:26:00,165 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 16:26:00,165 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 16:26:31,129 INFO  L134       CoverageAnalysis]: Checked inductivity of 2015820 backedges. 0 proven. 2133 refuted. 0 times theorem prover too weak. 2013687 trivial. 0 not checked.
[2025-02-05 16:26:31,129 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2025-02-05 16:26:31,129 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253031019]
[2025-02-05 16:26:31,130 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253031019] provided 0 perfect and 1 imperfect interpolant sequences
[2025-02-05 16:26:31,130 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443634579]
[2025-02-05 16:26:31,130 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2025-02-05 16:26:31,130 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2025-02-05 16:26:31,131 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2025-02-05 16:26:31,147 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2025-02-05 16:26:31,150 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2025-02-05 16:26:34,359 INFO  L108    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9238 statements into 1 equivalence classes.
[2025-02-05 16:26:38,082 INFO  L111    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9238 of 9238 statements.
[2025-02-05 16:26:38,082 INFO  L114    AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s)
[2025-02-05 16:26:38,082 INFO  L115    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2025-02-05 16:26:38,255 INFO  L256         TraceCheckSpWp]: Trace formula consists of 31145 conjuncts, 15 conjuncts are in the unsatisfiable core
[2025-02-05 16:26:38,400 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2025-02-05 16:26:38,808 INFO  L134       CoverageAnalysis]: Checked inductivity of 2015820 backedges. 643252 proven. 2 refuted. 0 times theorem prover too weak. 1372566 trivial. 0 not checked.
[2025-02-05 16:26:38,809 INFO  L312         TraceCheckSpWp]: Computing backward predicates...