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


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


Checking for ERROR reachability
Using default analysis
Version 3061b6dc
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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.2.M4-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 14:49:44,662 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 14:49:44,730 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 14:49:44,735 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 14:49:44,737 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 14:49:44,763 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 14:49:44,765 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 14:49:44,765 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 14:49:44,766 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 14:49:44,766 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 14:49:44,766 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 14:49:44,767 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 14:49:44,768 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 14:49:44,768 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 14:49:44,768 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 14:49:44,769 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 14:49:44,769 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 14:49:44,769 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 14:49:44,770 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 14:49:44,770 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 14:49:44,770 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 14:49:44,771 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 14:49:44,774 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 14:49:44,775 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 14:49:44,775 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 14:49:44,775 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 14:49:44,776 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 14:49:44,776 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 14:49:44,776 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 14:49:44,776 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 14:49:44,776 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 14:49:44,777 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 14:49:44,777 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 14:49:44,777 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 14:49:44,778 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 14:49:44,778 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 14:49:44,778 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 14:49:44,778 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 14:49:44,779 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 14:49:44,779 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 14:49:44,780 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 14:49:44,780 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 14:49:44,780 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 -> 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a
[2024-11-18 14:49:45,077 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 14:49:45,102 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 14:49:45,105 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 14:49:45,106 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 14:49:45,106 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 14:49:45,107 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c
[2024-11-18 14:49:46,589 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 14:49:47,146 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 14:49:47,148 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c
[2024-11-18 14:49:47,207 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6023011c5/336cc622d6d64b34a64f50183eae144a/FLAG0f2cedb63
[2024-11-18 14:49:47,224 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6023011c5/336cc622d6d64b34a64f50183eae144a
[2024-11-18 14:49:47,228 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 14:49:47,230 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 14:49:47,232 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 14:49:47,232 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 14:49:47,238 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 14:49:47,239 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:49:47" (1/1) ...
[2024-11-18 14:49:47,240 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e4033f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:47, skipping insertion in model container
[2024-11-18 14:49:47,241 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:49:47" (1/1) ...
[2024-11-18 14:49:47,385 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 14:49:47,669 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.2.M4-1.c[2195,2208]
[2024-11-18 14:49:48,781 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 14:49:48,813 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 14:49:48,823 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok2.i","-S") [51]
[2024-11-18 14:49:48,834 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.2.M4-1.c[2195,2208]
[2024-11-18 14:49:49,769 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 14:49:49,856 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 14:49:49,860 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49 WrapperNode
[2024-11-18 14:49:49,860 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 14:49:49,862 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 14:49:49,862 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 14:49:49,862 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 14:49:49,873 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:50,338 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:52,357 INFO  L138                Inliner]: procedures = 59, calls = 18819, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 40935
[2024-11-18 14:49:52,357 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 14:49:52,358 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 14:49:52,358 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 14:49:52,358 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 14:49:52,370 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:52,370 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:53,153 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:53,597 INFO  L175           MemorySlicer]: Split 14537 memory accesses to 20 slices as follows [2, 194, 17, 9, 8, 2784, 2, 3812, 2400, 1676, 1252, 852, 325, 429, 325, 7, 429, 8, 2, 4]. 26 percent of accesses are in the largest equivalence class. The 664 initializations are split as follows [2, 0, 8, 4, 0, 96, 0, 96, 8, 8, 4, 4, 108, 108, 108, 2, 108, 0, 0, 0]. The 761 writes are split as follows [0, 98, 1, 1, 4, 96, 1, 96, 8, 8, 4, 4, 109, 107, 109, 3, 107, 4, 1, 0].
[2024-11-18 14:49:53,598 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:53,598 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:54,555 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:54,634 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:54,739 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:54,826 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:55,183 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 14:49:55,185 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 14:49:55,186 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 14:49:55,186 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 14:49:55,187 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (1/1) ...
[2024-11-18 14:49:55,194 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 14:49:55,208 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 14:49:55,242 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)
[2024-11-18 14:49:55,245 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
[2024-11-18 14:49:55,300 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 14:49:55,300 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t2
[2024-11-18 14:49:55,300 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2
[2024-11-18 14:49:55,300 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode
[2024-11-18 14:49:55,301 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode
[2024-11-18 14:49:55,301 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#0
[2024-11-18 14:49:55,302 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#1
[2024-11-18 14:49:55,302 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#2
[2024-11-18 14:49:55,303 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#3
[2024-11-18 14:49:55,303 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#4
[2024-11-18 14:49:55,303 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#5
[2024-11-18 14:49:55,303 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#6
[2024-11-18 14:49:55,304 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#7
[2024-11-18 14:49:55,304 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#8
[2024-11-18 14:49:55,304 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#9
[2024-11-18 14:49:55,304 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#10
[2024-11-18 14:49:55,304 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#11
[2024-11-18 14:49:55,304 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#12
[2024-11-18 14:49:55,304 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#13
[2024-11-18 14:49:55,305 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#14
[2024-11-18 14:49:55,305 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#15
[2024-11-18 14:49:55,305 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#16
[2024-11-18 14:49:55,305 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#17
[2024-11-18 14:49:55,305 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#18
[2024-11-18 14:49:55,305 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int#19
[2024-11-18 14:49:55,305 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-18 14:49:55,305 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t0
[2024-11-18 14:49:55,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0
[2024-11-18 14:49:55,305 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t1
[2024-11-18 14:49:55,305 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1
[2024-11-18 14:49:55,306 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag
[2024-11-18 14:49:55,306 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag
[2024-11-18 14:49:55,306 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2024-11-18 14:49:55,306 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#1
[2024-11-18 14:49:55,306 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#2
[2024-11-18 14:49:55,308 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#3
[2024-11-18 14:49:55,308 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#4
[2024-11-18 14:49:55,308 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#5
[2024-11-18 14:49:55,308 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#6
[2024-11-18 14:49:55,308 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#7
[2024-11-18 14:49:55,308 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#8
[2024-11-18 14:49:55,309 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#9
[2024-11-18 14:49:55,309 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#10
[2024-11-18 14:49:55,309 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#11
[2024-11-18 14:49:55,309 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#12
[2024-11-18 14:49:55,309 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#13
[2024-11-18 14:49:55,309 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#14
[2024-11-18 14:49:55,310 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#15
[2024-11-18 14:49:55,310 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#16
[2024-11-18 14:49:55,310 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#17
[2024-11-18 14:49:55,310 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#18
[2024-11-18 14:49:55,310 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#19
[2024-11-18 14:49:55,310 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_count
[2024-11-18 14:49:55,310 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count
[2024-11-18 14:49:55,310 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor
[2024-11-18 14:49:55,311 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor
[2024-11-18 14:49:55,311 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1
[2024-11-18 14:49:55,311 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1
[2024-11-18 14:49:55,311 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2
[2024-11-18 14:49:55,312 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2
[2024-11-18 14:49:55,312 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-18 14:49:55,312 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background
[2024-11-18 14:49:55,313 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background
[2024-11-18 14:49:55,313 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2024-11-18 14:49:55,313 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#1
[2024-11-18 14:49:55,313 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#2
[2024-11-18 14:49:55,313 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#3
[2024-11-18 14:49:55,313 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#4
[2024-11-18 14:49:55,313 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#5
[2024-11-18 14:49:55,313 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#6
[2024-11-18 14:49:55,313 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#7
[2024-11-18 14:49:55,314 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#8
[2024-11-18 14:49:55,314 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#9
[2024-11-18 14:49:55,314 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#10
[2024-11-18 14:49:55,314 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#11
[2024-11-18 14:49:55,314 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#12
[2024-11-18 14:49:55,314 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#13
[2024-11-18 14:49:55,314 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#14
[2024-11-18 14:49:55,314 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#15
[2024-11-18 14:49:55,314 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#16
[2024-11-18 14:49:55,314 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#17
[2024-11-18 14:49:55,315 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#18
[2024-11-18 14:49:55,315 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#19
[2024-11-18 14:49:55,315 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2024-11-18 14:49:55,315 INFO  L138     BoogieDeclarations]: Found implementation of procedure assert
[2024-11-18 14:49:55,315 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed
[2024-11-18 14:49:55,315 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed
[2024-11-18 14:49:55,315 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-18 14:49:55,315 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-18 14:49:55,315 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 14:49:55,315 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-18 14:49:55,315 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-18 14:49:55,316 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-11-18 14:49:55,316 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-11-18 14:49:55,316 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#5
[2024-11-18 14:49:55,316 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#6
[2024-11-18 14:49:55,316 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#7
[2024-11-18 14:49:55,316 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#8
[2024-11-18 14:49:55,318 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#9
[2024-11-18 14:49:55,318 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#10
[2024-11-18 14:49:55,318 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#11
[2024-11-18 14:49:55,319 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#12
[2024-11-18 14:49:55,319 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#13
[2024-11-18 14:49:55,319 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#14
[2024-11-18 14:49:55,319 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#15
[2024-11-18 14:49:55,319 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#16
[2024-11-18 14:49:55,320 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#17
[2024-11-18 14:49:55,320 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#18
[2024-11-18 14:49:55,320 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#19
[2024-11-18 14:49:55,320 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 14:49:55,320 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 14:49:55,320 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms
[2024-11-18 14:49:55,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms
[2024-11-18 14:49:55,321 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_get_count
[2024-11-18 14:49:55,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count
[2024-11-18 14:49:55,321 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode
[2024-11-18 14:49:55,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode
[2024-11-18 14:49:57,184 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 14:49:57,187 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 14:50:28,657 INFO  L?                        ?]: Removed 279 outVars from TransFormulas that were not future-live.
[2024-11-18 14:50:28,657 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 14:50:28,809 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 14:50:28,809 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-18 14:50:28,810 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:50:28 BoogieIcfgContainer
[2024-11-18 14:50:28,810 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 14:50:28,812 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 14:50:28,813 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 14:50:28,816 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 14:50:28,816 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:49:47" (1/3) ...
[2024-11-18 14:50:28,818 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17904ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:50:28, skipping insertion in model container
[2024-11-18 14:50:28,818 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:49" (2/3) ...
[2024-11-18 14:50:28,819 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17904ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:50:28, skipping insertion in model container
[2024-11-18 14:50:28,819 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:50:28" (3/3) ...
[2024-11-18 14:50:28,821 INFO  L112   eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c
[2024-11-18 14:50:28,837 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 14:50:28,838 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 14:50:29,155 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 14:50:29,164 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;@64a7da5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 14:50:29,165 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 14:50:29,373 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 12240 states, 7996 states have (on average 1.3156578289144572) internal successors, (10520), 8109 states have internal predecessors, (10520), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226)
[2024-11-18 14:50:29,678 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4617
[2024-11-18 14:50:29,678 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 14:50:29,682 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-11-18 14:50:29,682 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 14:50:29,690 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 14:50:29,693 INFO  L85        PathProgramCache]: Analyzing trace with hash -1774636817, now seen corresponding path program 1 times
[2024-11-18 14:50:29,703 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 14:50:29,704 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915546155]
[2024-11-18 14:50:29,705 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:50:29,706 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 14:50:43,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:50:47,738 INFO  L134       CoverageAnalysis]: Checked inductivity of 226464 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked.
[2024-11-18 14:50:47,739 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 14:50:47,740 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915546155]
[2024-11-18 14:50:47,742 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915546155] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 14:50:47,742 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690628718]
[2024-11-18 14:50:47,746 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 14:50:47,747 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 14:50:47,748 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 14:50:47,751 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)
[2024-11-18 14:50:47,753 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-18 14:51:03,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 14:51:03,763 INFO  L255         TraceCheckSpWp]: Trace formula consists of 14218 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-18 14:51:03,918 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 14:51:04,153 INFO  L134       CoverageAnalysis]: Checked inductivity of 226464 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 225792 trivial. 0 not checked.
[2024-11-18 14:51:04,154 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 14:51:04,154 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [690628718] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 14:51:04,154 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 14:51:04,155 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-18 14:51:04,158 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788771155]
[2024-11-18 14:51:04,159 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 14:51:04,171 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-18 14:51:04,171 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 14:51:04,201 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-18 14:51:04,202 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 14:51:04,246 INFO  L87              Difference]: Start difference. First operand  has 12240 states, 7996 states have (on average 1.3156578289144572) internal successors, (10520), 8109 states have internal predecessors, (10520), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) Second operand  has 2 states, 2 states have (on average 1467.5) internal successors, (2935), 2 states have internal predecessors, (2935), 2 states have call successors, (338), 2 states have call predecessors, (338), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337)
[2024-11-18 14:51:04,769 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 14:51:04,770 INFO  L93              Difference]: Finished difference Result 24475 states and 42148 transitions.
[2024-11-18 14:51:04,771 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-18 14:51:04,778 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 1467.5) internal successors, (2935), 2 states have internal predecessors, (2935), 2 states have call successors, (338), 2 states have call predecessors, (338), 1 states have return successors, (337), 1 states have call predecessors, (337), 2 states have call successors, (337) Word has length 4616
[2024-11-18 14:51:04,779 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 14:51:04,902 INFO  L225             Difference]: With dead ends: 24475
[2024-11-18 14:51:04,903 INFO  L226             Difference]: Without dead ends: 12232
[2024-11-18 14:51:04,990 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
[2024-11-18 14:51:04,995 INFO  L432           NwaCegarLoop]: 18969 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, 18969 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
[2024-11-18 14:51:04,997 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18969 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 14:51:05,035 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12232 states.