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


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


Checking for ERROR reachability
Using default analysis
Version 803cd42f
Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.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.1.M4-2.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 02d0ab19c61564f5abc0709934811896521a72f96ec1b9a0c41f20d28a391c3e
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m
[2024-11-22 02:34:52,963 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-22 02:34:53,022 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-22 02:34:53,026 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-22 02:34:53,027 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-22 02:34:53,056 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-22 02:34:53,057 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-22 02:34:53,057 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-22 02:34:53,058 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-22 02:34:53,058 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-22 02:34:53,059 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-22 02:34:53,059 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-22 02:34:53,060 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-22 02:34:53,060 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-22 02:34:53,060 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-22 02:34:53,062 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-22 02:34:53,062 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-22 02:34:53,062 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-22 02:34:53,063 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-22 02:34:53,063 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-22 02:34:53,063 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-22 02:34:53,067 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-22 02:34:53,067 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-22 02:34:53,067 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-22 02:34:53,067 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-22 02:34:53,068 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-22 02:34:53,068 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-22 02:34:53,068 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-22 02:34:53,068 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-22 02:34:53,068 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-22 02:34:53,069 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-22 02:34:53,069 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-22 02:34:53,069 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 02:34:53,069 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-22 02:34:53,069 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-22 02:34:53,069 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-22 02:34:53,070 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-22 02:34:53,070 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-22 02:34:53,070 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-22 02:34:53,070 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-22 02:34:53,070 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-22 02:34:53,072 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-22 02:34:53,072 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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 -> 02d0ab19c61564f5abc0709934811896521a72f96ec1b9a0c41f20d28a391c3e
[2024-11-22 02:34:53,296 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-22 02:34:53,318 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-22 02:34:53,321 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-22 02:34:53,322 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-22 02:34:53,322 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-22 02:34:53,323 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c
[2024-11-22 02:34:54,860 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-22 02:34:55,320 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-22 02:34:55,321 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-2.c
[2024-11-22 02:34:55,357 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83324e820/6eadbc50b04343699f4d5badc2dc33e8/FLAG54092ef5d
[2024-11-22 02:34:55,446 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83324e820/6eadbc50b04343699f4d5badc2dc33e8
[2024-11-22 02:34:55,448 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-22 02:34:55,450 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-22 02:34:55,453 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-22 02:34:55,453 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-22 02:34:55,459 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-22 02:34:55,460 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:34:55" (1/1) ...
[2024-11-22 02:34:55,461 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb81f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:55, skipping insertion in model container
[2024-11-22 02:34:55,463 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:34:55" (1/1) ...
[2024-11-22 02:34:55,582 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-22 02:34:55,922 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.1.M4-2.c[1674,1687]
[2024-11-22 02:34:57,048 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 02:34:57,086 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-22 02:34:57,096 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.bug1.i","-S") [42]
[2024-11-22 02:34:57,101 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.1.M4-2.c[1674,1687]
[2024-11-22 02:34:57,909 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-22 02:34:57,963 INFO  L204         MainTranslator]: Completed translation
[2024-11-22 02:34:57,966 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57 WrapperNode
[2024-11-22 02:34:57,967 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-22 02:34:57,968 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-22 02:34:57,968 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-22 02:34:57,968 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-22 02:34:57,984 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:34:58,514 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:35:01,045 INFO  L138                Inliner]: procedures = 57, calls = 18490, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 40484
[2024-11-22 02:35:01,045 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-22 02:35:01,047 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-22 02:35:01,047 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-22 02:35:01,047 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-22 02:35:01,240 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:35:01,240 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:35:01,575 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:35:01,797 INFO  L175           MemorySlicer]: Split 14318 memory accesses to 17 slices as follows [2, 2, 2784, 3812, 2400, 1676, 1252, 852, 326, 429, 8, 325, 429, 2, 8, 4, 7]. 27 percent of accesses are in the largest equivalence class. The 652 initializations are split as follows [2, 0, 96, 96, 8, 8, 4, 4, 108, 108, 0, 108, 108, 0, 0, 0, 2]. The 661 writes are split as follows [0, 1, 96, 96, 8, 8, 4, 4, 109, 107, 4, 109, 107, 1, 4, 0, 3].
[2024-11-22 02:35:01,798 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:35:01,798 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:35:02,688 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:35:02,997 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:35:03,146 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:35:03,248 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:35:03,587 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-22 02:35:03,588 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-22 02:35:03,588 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-22 02:35:03,588 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-22 02:35:03,589 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (1/1) ...
[2024-11-22 02:35:03,595 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-22 02:35:03,605 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 02:35:03,624 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)
[2024-11-22 02:35:03,630 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
[2024-11-22 02:35:03,677 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-22 02:35:03,677 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t2
[2024-11-22 02:35:03,677 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2
[2024-11-22 02:35:03,678 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode
[2024-11-22 02:35:03,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode
[2024-11-22 02:35:03,678 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-22 02:35:03,678 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t0
[2024-11-22 02:35:03,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0
[2024-11-22 02:35:03,678 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t1
[2024-11-22 02:35:03,678 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1
[2024-11-22 02:35:03,679 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag
[2024-11-22 02:35:03,679 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag
[2024-11-22 02:35:03,679 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-22 02:35:03,679 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-22 02:35:03,679 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-22 02:35:03,679 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-22 02:35:03,679 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#4
[2024-11-22 02:35:03,679 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#5
[2024-11-22 02:35:03,680 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#6
[2024-11-22 02:35:03,680 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#7
[2024-11-22 02:35:03,680 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#8
[2024-11-22 02:35:03,680 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#9
[2024-11-22 02:35:03,680 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#10
[2024-11-22 02:35:03,680 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#11
[2024-11-22 02:35:03,680 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#12
[2024-11-22 02:35:03,681 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#13
[2024-11-22 02:35:03,681 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#14
[2024-11-22 02:35:03,681 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#15
[2024-11-22 02:35:03,681 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#16
[2024-11-22 02:35:03,681 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_count
[2024-11-22 02:35:03,681 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count
[2024-11-22 02:35:03,681 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor
[2024-11-22 02:35:03,682 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor
[2024-11-22 02:35:03,682 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1
[2024-11-22 02:35:03,682 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1
[2024-11-22 02:35:03,682 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2
[2024-11-22 02:35:03,682 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2
[2024-11-22 02:35:03,682 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-22 02:35:03,683 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background
[2024-11-22 02:35:03,683 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background
[2024-11-22 02:35:03,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-22 02:35:03,683 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-22 02:35:03,684 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-22 02:35:03,684 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-22 02:35:03,684 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#4
[2024-11-22 02:35:03,684 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#5
[2024-11-22 02:35:03,684 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#6
[2024-11-22 02:35:03,684 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#7
[2024-11-22 02:35:03,684 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#8
[2024-11-22 02:35:03,684 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#9
[2024-11-22 02:35:03,684 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#10
[2024-11-22 02:35:03,685 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#11
[2024-11-22 02:35:03,685 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#12
[2024-11-22 02:35:03,685 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#13
[2024-11-22 02:35:03,685 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#14
[2024-11-22 02:35:03,685 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#15
[2024-11-22 02:35:03,685 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#16
[2024-11-22 02:35:03,685 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed
[2024-11-22 02:35:03,685 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed
[2024-11-22 02:35:03,685 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-22 02:35:03,685 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-22 02:35:03,685 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-22 02:35:03,685 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#8
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#9
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#10
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#11
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#12
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#13
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#14
[2024-11-22 02:35:03,686 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#15
[2024-11-22 02:35:03,687 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#16
[2024-11-22 02:35:03,687 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-22 02:35:03,687 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-22 02:35:03,687 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms
[2024-11-22 02:35:03,687 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms
[2024-11-22 02:35:03,687 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_get_count
[2024-11-22 02:35:03,687 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count
[2024-11-22 02:35:03,688 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode
[2024-11-22 02:35:03,688 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode
[2024-11-22 02:35:05,154 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-22 02:35:05,156 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-22 02:35:36,582 INFO  L?                        ?]: Removed 274 outVars from TransFormulas that were not future-live.
[2024-11-22 02:35:36,582 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-22 02:35:36,737 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-22 02:35:36,737 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-22 02:35:36,738 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:35:36 BoogieIcfgContainer
[2024-11-22 02:35:36,739 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-22 02:35:36,743 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-22 02:35:36,743 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-22 02:35:36,746 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-22 02:35:36,747 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:34:55" (1/3) ...
[2024-11-22 02:35:36,747 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77eee2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:35:36, skipping insertion in model container
[2024-11-22 02:35:36,747 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:34:57" (2/3) ...
[2024-11-22 02:35:36,748 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77eee2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:35:36, skipping insertion in model container
[2024-11-22 02:35:36,748 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:35:36" (3/3) ...
[2024-11-22 02:35:36,753 INFO  L112   eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-2.c
[2024-11-22 02:35:36,790 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-22 02:35:36,790 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-22 02:35:37,328 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-22 02:35:37,338 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;@55e2b0ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-22 02:35:37,338 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-22 02:35:37,372 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 12013 states, 7878 states have (on average 1.3196242701193197) internal successors, (10396), 7991 states have internal predecessors, (10396), 4118 states have call successors, (4118), 15 states have call predecessors, (4118), 15 states have return successors, (4118), 4116 states have call predecessors, (4118), 4118 states have call successors, (4118)
[2024-11-22 02:35:37,991 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4617
[2024-11-22 02:35:37,991 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-22 02:35:37,995 INFO  L215           NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-22 02:35:37,996 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-22 02:35:38,001 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-22 02:35:38,003 INFO  L85        PathProgramCache]: Analyzing trace with hash -194665925, now seen corresponding path program 1 times
[2024-11-22 02:35:38,012 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-22 02:35:38,012 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185151695]
[2024-11-22 02:35:38,013 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 02:35:38,014 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-22 02:35:54,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 02:36:00,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 226464 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked.
[2024-11-22 02:36:00,450 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-22 02:36:00,451 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185151695]
[2024-11-22 02:36:00,452 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185151695] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-22 02:36:00,452 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693567749]
[2024-11-22 02:36:00,454 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-22 02:36:00,455 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-22 02:36:00,455 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-22 02:36:00,458 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)
[2024-11-22 02:36:00,460 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-22 02:36:16,343 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-22 02:36:16,448 INFO  L255         TraceCheckSpWp]: Trace formula consists of 13978 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-22 02:36:16,579 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-22 02:36:16,732 INFO  L134       CoverageAnalysis]: Checked inductivity of 226464 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked.
[2024-11-22 02:36:16,732 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-22 02:36:16,732 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [693567749] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-22 02:36:16,732 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-22 02:36:16,733 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-22 02:36:16,735 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094740553]
[2024-11-22 02:36:16,736 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-22 02:36:16,744 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-22 02:36:16,745 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-22 02:36:16,767 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-22 02:36:16,768 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 02:36:16,794 INFO  L87              Difference]: Start difference. First operand  has 12013 states, 7878 states have (on average 1.3196242701193197) internal successors, (10396), 7991 states have internal predecessors, (10396), 4118 states have call successors, (4118), 15 states have call predecessors, (4118), 15 states have return successors, (4118), 4116 states have call predecessors, (4118), 4118 states have call successors, (4118) Second operand  has 2 states, 2 states have (on average 1468.0) internal successors, (2936), 2 states have internal predecessors, (2936), 2 states have call successors, (337), 2 states have call predecessors, (337), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337)
[2024-11-22 02:36:17,526 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-22 02:36:17,526 INFO  L93              Difference]: Finished difference Result 24021 states and 41360 transitions.
[2024-11-22 02:36:17,530 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-22 02:36:17,536 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 1468.0) internal successors, (2936), 2 states have internal predecessors, (2936), 2 states have call successors, (337), 2 states have call predecessors, (337), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337) Word has length 4616
[2024-11-22 02:36:17,537 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-22 02:36:17,671 INFO  L225             Difference]: With dead ends: 24021
[2024-11-22 02:36:17,672 INFO  L226             Difference]: Without dead ends: 12007
[2024-11-22 02:36:17,757 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4617 GetRequests, 4617 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-22 02:36:17,764 INFO  L432           NwaCegarLoop]: 18629 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, 18629 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
[2024-11-22 02:36:17,765 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18629 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-22 02:36:17,809 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12007 states.