/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c


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


This is Ultimate 0.1.24-fb55353
[2019-11-07 07:07:45,632 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-11-07 07:07:45,635 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
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[2019-11-07 07:07:45,653 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-11-07 07:07:45,655 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-11-07 07:07:45,657 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2019-11-07 07:07:45,684 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-11-07 07:07:45,686 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-11-07 07:07:45,687 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-11-07 07:07:45,688 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2019-11-07 07:07:45,720 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-11-07 07:07:45,755 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-11-07 07:07:45,755 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-07 07:07:45,760 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-07 07:07:45,760 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-11-07 07:07:45,760 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-11-07 07:07:45,760 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-07 07:07:45,761 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-11-07 07:07:45,761 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-11-07 07:07:45,761 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-11-07 07:07:45,761 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-11-07 07:07:45,761 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-11-07 07:07:45,762 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-07 07:07:45,762 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-11-07 07:07:45,762 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-11-07 07:07:45,762 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-11-07 07:07:45,762 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-11-07 07:07:45,762 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-11-07 07:07:45,763 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-07 07:07:45,763 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-11-07 07:07:45,763 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-11-07 07:07:45,763 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-11-07 07:07:45,763 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-07 07:07:45,764 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-07 07:07:45,764 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-11-07 07:07:45,764 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-07 07:07:45,764 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-11-07 07:07:45,764 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-11-07 07:07:45,764 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-07 07:07:45,765 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain
[2019-11-07 07:07:46,056 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-07 07:07:46,077 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-07 07:07:46,081 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-07 07:07:46,082 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-11-07 07:07:46,083 INFO  L275        PluginConnector]: CDTParser initialized
[2019-11-07 07:07:46,084 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-11-07 07:07:46,159 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bebc9ac3/cd161d3a59134ba0b7d98c48e0eed372/FLAGfe456bcee
[2019-11-07 07:07:46,703 INFO  L306              CDTParser]: Found 1 translation units.
[2019-11-07 07:07:46,704 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-11-07 07:07:46,721 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bebc9ac3/cd161d3a59134ba0b7d98c48e0eed372/FLAGfe456bcee
[2019-11-07 07:07:47,049 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bebc9ac3/cd161d3a59134ba0b7d98c48e0eed372
[2019-11-07 07:07:47,058 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-07 07:07:47,060 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-11-07 07:07:47,061 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-07 07:07:47,061 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-07 07:07:47,065 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-07 07:07:47,066 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:07:47" (1/1) ...
[2019-11-07 07:07:47,069 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ce159e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:47, skipping insertion in model container
[2019-11-07 07:07:47,069 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:07:47" (1/1) ...
[2019-11-07 07:07:47,076 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-11-07 07:07:47,154 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-11-07 07:07:47,814 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-07 07:07:47,830 INFO  L188         MainTranslator]: Completed pre-run
[2019-11-07 07:07:48,197 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-07 07:07:48,220 INFO  L192         MainTranslator]: Completed translation
[2019-11-07 07:07:48,220 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:48 WrapperNode
[2019-11-07 07:07:48,220 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-07 07:07:48,221 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-07 07:07:48,221 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-07 07:07:48,221 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-11-07 07:07:48,231 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:48" (1/1) ...
[2019-11-07 07:07:48,232 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:48" (1/1) ...
[2019-11-07 07:07:48,251 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:48" (1/1) ...
[2019-11-07 07:07:48,251 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:48" (1/1) ...
[2019-11-07 07:07:48,281 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:48" (1/1) ...
[2019-11-07 07:07:48,306 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:48" (1/1) ...
[2019-11-07 07:07:48,312 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:48" (1/1) ...
[2019-11-07 07:07:48,321 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-07 07:07:48,321 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-07 07:07:48,321 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-11-07 07:07:48,322 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-11-07 07:07:48,323 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:48" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-07 07:07:48,396 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-11-07 07:07:48,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-07 07:07:48,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-11-07 07:07:48,397 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-11-07 07:07:48,397 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-11-07 07:07:48,397 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2019-11-07 07:07:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-11-07 07:07:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-11-07 07:07:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-11-07 07:07:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-11-07 07:07:48,398 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-11-07 07:07:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-11-07 07:07:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-11-07 07:07:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-11-07 07:07:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-11-07 07:07:48,399 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-11-07 07:07:48,400 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-11-07 07:07:48,400 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-11-07 07:07:48,400 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-07 07:07:50,067 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-07 07:07:50,068 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-11-07 07:07:50,070 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:07:50 BoogieIcfgContainer
[2019-11-07 07:07:50,070 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-07 07:07:50,071 INFO  L113        PluginConnector]: ------------------------Abstract Interpretation----------------------------
[2019-11-07 07:07:50,071 INFO  L271        PluginConnector]: Initializing Abstract Interpretation...
[2019-11-07 07:07:50,071 INFO  L275        PluginConnector]: Abstract Interpretation initialized
[2019-11-07 07:07:50,072 INFO  L185        PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:07:50" (1/1) ...
[2019-11-07 07:07:50,113 INFO  L101         FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)
[2019-11-07 07:07:50,292 WARN  L79         EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation.
[2019-11-07 07:07:58,483 INFO  L263    AbstractInterpreter]: Some error location(s) were reachable
[2019-11-07 07:07:58,634 INFO  L272    AbstractInterpreter]: Visited 684 different actions 13483 times. Merged at 451 different actions 7090 times. Widened at 123 different actions 1064 times. Performed 44299 root evaluator evaluations with a maximum evaluation depth of 5. Performed 44299 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 3808 fixpoints after 294 different actions. Largest state had 225 variables.
[2019-11-07 07:07:58,634 INFO  L132        PluginConnector]: ------------------------ END Abstract Interpretation----------------------------
[2019-11-07 07:07:58,637 INFO  L168              Benchmark]: Toolchain (without parser) took 11575.84 ms. Allocated memory was 138.9 MB in the beginning and 489.7 MB in the end (delta: 350.7 MB). Free memory was 101.7 MB in the beginning and 110.4 MB in the end (delta: -8.8 MB). Peak memory consumption was 342.0 MB. Max. memory is 7.1 GB.
[2019-11-07 07:07:58,638 INFO  L168              Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-11-07 07:07:58,639 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 1159.53 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.4 MB in the beginning and 162.1 MB in the end (delta: -60.7 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB.
[2019-11-07 07:07:58,640 INFO  L168              Benchmark]: Boogie Preprocessor took 99.82 ms. Allocated memory is still 204.5 MB. Free memory was 162.1 MB in the beginning and 157.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB.
[2019-11-07 07:07:58,641 INFO  L168              Benchmark]: RCFGBuilder took 1748.76 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 156.5 MB in the beginning and 106.8 MB in the end (delta: 49.7 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB.
[2019-11-07 07:07:58,642 INFO  L168              Benchmark]: Abstract Interpretation took 8563.49 ms. Allocated memory was 236.5 MB in the beginning and 489.7 MB in the end (delta: 253.2 MB). Free memory was 106.8 MB in the beginning and 110.4 MB in the end (delta: -3.6 MB). Peak memory consumption was 249.6 MB. Max. memory is 7.1 GB.
[2019-11-07 07:07:58,647 INFO  L335   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 1159.53 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 101.4 MB in the beginning and 162.1 MB in the end (delta: -60.7 MB). Peak memory consumption was 34.2 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 99.82 ms. Allocated memory is still 204.5 MB. Free memory was 162.1 MB in the beginning and 157.2 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1748.76 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 156.5 MB in the beginning and 106.8 MB in the end (delta: 49.7 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB.
 * Abstract Interpretation took 8563.49 ms. Allocated memory was 236.5 MB in the beginning and 489.7 MB in the end (delta: 253.2 MB). Free memory was 106.8 MB in the beginning and 110.4 MB in the end (delta: -3.6 MB). Peak memory consumption was 249.6 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2:
  - UnprovableResult [Line: 823]: Unable to prove that call of __VERIFIER_error() unreachable
    Unable to prove that call of __VERIFIER_error() unreachable
 Reason: abstract domain could reach this error location. 
Possible FailurePath: 
[L1]                int __return_main;
[L12]               msg_t nomsg = (msg_t )-1;
[L13]               port_t p12 = 0;
[L14]               char p12_old = '\x0';
[L15]               char p12_new = '\x0';
[L16]               _Bool ep12 = 0;
[L17]               port_t p13 = 0;
[L18]               char p13_old = '\x0';
[L19]               char p13_new = '\x0';
[L20]               _Bool ep13 = 0;
[L21]               port_t p21 = 0;
[L22]               char p21_old = '\x0';
[L23]               char p21_new = '\x0';
[L24]               _Bool ep21 = 0;
[L25]               port_t p23 = 0;
[L26]               char p23_old = '\x0';
[L27]               char p23_new = '\x0';
[L28]               _Bool ep23 = 0;
[L29]               port_t p31 = 0;
[L30]               char p31_old = '\x0';
[L31]               char p31_new = '\x0';
[L32]               _Bool ep31 = 0;
[L33]               port_t p32 = 0;
[L34]               char p32_old = '\x0';
[L35]               char p32_new = '\x0';
[L36]               _Bool ep32 = 0;
[L37]               char id1 = '\x0';
[L38]               unsigned char r1 = '\x0';
[L39]               char st1 = '\x0';
[L40]               char nl1 = '\x0';
[L41]               char m1 = '\x0';
[L42]               char max1 = '\x0';
[L43]               _Bool mode1 = 0;
[L44]               char id2 = '\x0';
[L45]               unsigned char r2 = '\x0';
[L46]               char st2 = '\x0';
[L47]               char nl2 = '\x0';
[L48]               char m2 = '\x0';
[L49]               char max2 = '\x0';
[L50]               _Bool mode2 = 0;
[L51]               char id3 = '\x0';
[L52]               unsigned char r3 = '\x0';
[L53]               char st3 = '\x0';
[L54]               char nl3 = '\x0';
[L55]               char m3 = '\x0';
[L56]               char max3 = '\x0';
[L57]               _Bool mode3 = 0;
[L61]               void (*nodes[3])() = { &node1, &node2, &node3 };
[L65]               int __return_1742;
[L66]               int __return_1870;
[L67]               int __return_1988;
[L68]               int __return_2106;
[L69]               int __return_2840;
[L70]               int __return_2806;
[L71]               int __return_2345;
[L72]               int __return_2726;
[L73]               int __return_2683;
[L74]               int __return_2584;
[L75]               int __return_2553;
[L76]               int __return_2494;
[L77]               int __return_2235;
[L80]               int main__c1;
[L81]               int main__i2;
[L82]               main__c1 = 0
[L83]               ep12 = __VERIFIER_nondet_bool()
[L84]               ep13 = __VERIFIER_nondet_bool()
[L85]               ep21 = __VERIFIER_nondet_bool()
[L86]               ep23 = __VERIFIER_nondet_bool()
[L87]               ep31 = __VERIFIER_nondet_bool()
[L88]               ep32 = __VERIFIER_nondet_bool()
[L89]               id1 = __VERIFIER_nondet_char()
[L90]               r1 = __VERIFIER_nondet_uchar()
[L91]               st1 = __VERIFIER_nondet_char()
[L92]               nl1 = __VERIFIER_nondet_char()
[L93]               m1 = __VERIFIER_nondet_char()
[L94]               max1 = __VERIFIER_nondet_char()
[L95]               mode1 = __VERIFIER_nondet_bool()
[L96]               id2 = __VERIFIER_nondet_char()
[L97]               r2 = __VERIFIER_nondet_uchar()
[L98]               st2 = __VERIFIER_nondet_char()
[L99]               nl2 = __VERIFIER_nondet_char()
[L100]              m2 = __VERIFIER_nondet_char()
[L101]              max2 = __VERIFIER_nondet_char()
[L102]              mode2 = __VERIFIER_nondet_bool()
[L103]              id3 = __VERIFIER_nondet_char()
[L104]              r3 = __VERIFIER_nondet_uchar()
[L105]              st3 = __VERIFIER_nondet_char()
[L106]              nl3 = __VERIFIER_nondet_char()
[L107]              m3 = __VERIFIER_nondet_char()
[L108]              max3 = __VERIFIER_nondet_char()
[L109]              mode3 = __VERIFIER_nondet_bool()
[L111]              _Bool init__r121;
[L112]              _Bool init__r131;
[L113]              _Bool init__r211;
[L114]              _Bool init__r231;
[L115]              _Bool init__r311;
[L116]              _Bool init__r321;
[L117]              _Bool init__r122;
[L118]              int init__tmp;
[L119]              _Bool init__r132;
[L120]              int init__tmp___0;
[L121]              _Bool init__r212;
[L122]              int init__tmp___1;
[L123]              _Bool init__r232;
[L124]              int init__tmp___2;
[L125]              _Bool init__r312;
[L126]              int init__tmp___3;
[L127]              _Bool init__r322;
[L128]              int init__tmp___4;
[L129]              int init__tmp___5;
[L130]              init__r121 = ep12
[L131]              init__r131 = ep13
[L132]              init__r211 = ep21
[L133]              init__r231 = ep23
[L134]              init__r311 = ep31
[L135]              init__r321 = ep32
[L136]  COND TRUE   !(init__r121 == 0)
[L138]              init__tmp = 1
[L140]              init__r122 = (_Bool)init__tmp
[L141]  COND TRUE   !(init__r131 == 0)
[L143]              init__tmp___0 = 1
[L145]              init__r132 = (_Bool)init__tmp___0
[L146]  COND TRUE   !(init__r211 == 0)
[L148]              init__tmp___1 = 1
[L150]              init__r212 = (_Bool)init__tmp___1
[L151]  COND TRUE   !(init__r231 == 0)
[L153]              init__tmp___2 = 1
[L155]              init__r232 = (_Bool)init__tmp___2
[L156]  COND TRUE   !(init__r311 == 0)
[L158]              init__tmp___3 = 1
[L160]              init__r312 = (_Bool)init__tmp___3
[L161]  COND TRUE   !(init__r321 == 0)
[L163]              init__tmp___4 = 1
[L165]              init__r322 = (_Bool)init__tmp___4
[L166]  COND TRUE   ((int)id1) != ((int)id2)
[L168]  COND TRUE   ((int)id1) != ((int)id3)
[L170]  COND TRUE   ((int)id2) != ((int)id3)
[L172]  COND TRUE   ((int)id1) >= 0
[L174]  COND TRUE   ((int)id2) >= 0
[L176]  COND TRUE   ((int)id3) >= 0
[L178]  COND TRUE   ((int)r1) == 0
[L180]  COND TRUE   ((int)r2) == 0
[L182]  COND TRUE   ((int)r3) == 0
[L184]  COND TRUE   !(init__r122 == 0)
[L186]  COND TRUE   !(init__r132 == 0)
[L188]  COND TRUE   !(init__r212 == 0)
[L190]  COND TRUE   !(init__r232 == 0)
[L192]  COND TRUE   !(init__r312 == 0)
[L194]  COND TRUE   !(init__r322 == 0)
[L196]  COND TRUE   ((int)max1) == ((int)id1)
[L198]  COND TRUE   ((int)max2) == ((int)id2)
[L200]  COND TRUE   ((int)max3) == ((int)id3)
[L202]  COND TRUE   ((int)st1) == 0
[L204]  COND TRUE   ((int)st2) == 0
[L206]  COND TRUE   ((int)st3) == 0
[L208]  COND TRUE   ((int)nl1) == 0
[L210]  COND TRUE   ((int)nl2) == 0
[L212]  COND TRUE   ((int)nl3) == 0
[L214]  COND TRUE   ((int)mode1) == 0
[L216]  COND TRUE   ((int)mode2) == 0
[L218]  COND TRUE   ((int)mode3) == 0
[L220]              init__tmp___5 = 1
[L221]              __return_1742 = init__tmp___5
[L222]              main__i2 = __return_1742
[L223]  COND TRUE   main__i2 != 0
[L225]              p12_old = nomsg
[L226]              p12_new = nomsg
[L227]              p13_old = nomsg
[L228]              p13_new = nomsg
[L229]              p21_old = nomsg
[L230]              p21_new = nomsg
[L231]              p23_old = nomsg
[L232]              p23_new = nomsg
[L233]              p31_old = nomsg
[L234]              p31_new = nomsg
[L235]              p32_old = nomsg
[L236]              p32_new = nomsg
[L237]              main__i2 = 0
[L239]  COND FALSE  !(!(mode1 == 0))
[L245]  COND TRUE   ((int)r1) < 2
[L247]  COND FALSE  !(!(ep12 == 0))
[L258]  COND FALSE  !(!(ep13 == 0))
[L269]              mode1 = 1
[L271]  COND FALSE  !(!(mode2 == 0))
[L277]  COND TRUE   ((int)r2) < 2
[L279]  COND FALSE  !(!(ep21 == 0))
[L290]  COND FALSE  !(!(ep23 == 0))
[L301]              mode2 = 1
[L303]  COND FALSE  !(!(mode3 == 0))
[L309]  COND TRUE   ((int)r3) < 2
[L311]  COND FALSE  !(!(ep31 == 0))
[L322]  COND FALSE  !(!(ep32 == 0))
[L333]              mode3 = 1
[L334]              p12_old = p12_new
[L335]              p12_new = nomsg
[L336]              p13_old = p13_new
[L337]              p13_new = nomsg
[L338]              p21_old = p21_new
[L339]              p21_new = nomsg
[L340]              p23_old = p23_new
[L341]              p23_new = nomsg
[L342]              p31_old = p31_new
[L343]              p31_new = nomsg
[L344]              p32_old = p32_new
[L345]              p32_new = nomsg
[L347]              int check__tmp;
[L348]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L350]  COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L352]  COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L354]  COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L356]  COND FALSE  !(((int)r1) >= 2)
[L362]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L364]  COND TRUE   ((int)r1) < 2
[L366]  COND FALSE  !(((int)r1) >= 2)
[L372]  COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L374]  COND TRUE   ((int)r1) < 2
[L376]              check__tmp = 1
[L377]              __return_1870 = check__tmp
[L378]              main__c1 = __return_1870
[L380]              _Bool __tmp_1;
[L381]              __tmp_1 = main__c1
[L382]              _Bool assert__arg;
[L383]              assert__arg = __tmp_1
[L384]  COND FALSE  !(assert__arg == 0)
[L391]  COND TRUE   !(mode1 == 0)
[L393]  COND FALSE  !(r1 == 255)
[L399]              r1 = r1 + 1
[L400]  COND FALSE  !(!(ep21 == 0))
[L408]  COND FALSE  !(!(ep31 == 0))
[L416]  COND FALSE  !(((int)r1) == 2)
[L422]              mode1 = 0
[L424]  COND TRUE   !(mode2 == 0)
[L426]  COND FALSE  !(r2 == 255)
[L432]              r2 = r2 + 1
[L433]  COND FALSE  !(!(ep12 == 0))
[L441]  COND FALSE  !(!(ep32 == 0))
[L449]  COND FALSE  !(((int)r2) == 2)
[L455]              mode2 = 0
[L457]  COND TRUE   !(mode3 == 0)
[L459]  COND FALSE  !(r3 == 255)
[L465]              r3 = r3 + 1
[L466]  COND FALSE  !(!(ep13 == 0))
[L474]  COND FALSE  !(!(ep23 == 0))
[L482]  COND FALSE  !(((int)r3) == 2)
[L488]              mode3 = 0
[L489]              p12_old = p12_new
[L490]              p12_new = nomsg
[L491]              p13_old = p13_new
[L492]              p13_new = nomsg
[L493]              p21_old = p21_new
[L494]              p21_new = nomsg
[L495]              p23_old = p23_new
[L496]              p23_new = nomsg
[L497]              p31_old = p31_new
[L498]              p31_new = nomsg
[L499]              p32_old = p32_new
[L500]              p32_new = nomsg
[L502]              int check__tmp;
[L503]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L505]  COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L507]  COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L509]  COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L511]  COND FALSE  !(((int)r1) >= 2)
[L517]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L519]  COND TRUE   ((int)r1) < 2
[L521]  COND FALSE  !(((int)r1) >= 2)
[L527]  COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L529]  COND TRUE   ((int)r1) < 2
[L531]              check__tmp = 1
[L532]              __return_1988 = check__tmp
[L533]              main__c1 = __return_1988
[L535]              _Bool __tmp_2;
[L536]              __tmp_2 = main__c1
[L537]              _Bool assert__arg;
[L538]              assert__arg = __tmp_2
[L539]  COND FALSE  !(assert__arg == 0)
[L546]  COND FALSE  !(!(mode1 == 0))
[L552]  COND TRUE   ((int)r1) < 2
[L554]  COND FALSE  !(!(ep12 == 0))
[L565]  COND FALSE  !(!(ep13 == 0))
[L576]              mode1 = 1
[L578]  COND FALSE  !(!(mode2 == 0))
[L584]  COND TRUE   ((int)r2) < 2
[L586]  COND FALSE  !(!(ep21 == 0))
[L597]  COND FALSE  !(!(ep23 == 0))
[L608]              mode2 = 1
[L610]  COND FALSE  !(!(mode3 == 0))
[L616]  COND TRUE   ((int)r3) < 2
[L618]  COND FALSE  !(!(ep31 == 0))
[L629]  COND FALSE  !(!(ep32 == 0))
[L640]              mode3 = 1
[L641]              p12_old = p12_new
[L642]              p12_new = nomsg
[L643]              p13_old = p13_new
[L644]              p13_new = nomsg
[L645]              p21_old = p21_new
[L646]              p21_new = nomsg
[L647]              p23_old = p23_new
[L648]              p23_new = nomsg
[L649]              p31_old = p31_new
[L650]              p31_new = nomsg
[L651]              p32_old = p32_new
[L652]              p32_new = nomsg
[L654]              int check__tmp;
[L655]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L657]  COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L659]  COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L661]  COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L663]  COND FALSE  !(((int)r1) >= 2)
[L669]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L671]  COND TRUE   ((int)r1) < 2
[L673]  COND FALSE  !(((int)r1) >= 2)
[L679]  COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L681]  COND TRUE   ((int)r1) < 2
[L683]              check__tmp = 1
[L684]              __return_2106 = check__tmp
[L685]              main__c1 = __return_2106
[L687]              _Bool __tmp_3;
[L688]              __tmp_3 = main__c1
[L689]              _Bool assert__arg;
[L690]              assert__arg = __tmp_3
[L691]  COND FALSE  !(assert__arg == 0)
[L698]  COND TRUE   !(mode1 == 0)
[L700]  COND FALSE  !(r1 == 255)
[L706]              r1 = r1 + 1
[L707]  COND FALSE  !(!(ep21 == 0))
[L715]  COND FALSE  !(!(ep31 == 0))
[L723]  COND TRUE   ((int)r1) == 2
[L725]  COND TRUE   ((int)max1) == ((int)id1)
[L727]              nl1 = 1
[L728]              mode1 = 0
[L730]  COND TRUE   !(mode2 == 0)
[L732]  COND FALSE  !(r2 == 255)
[L738]              r2 = r2 + 1
[L739]  COND FALSE  !(!(ep12 == 0))
[L747]  COND FALSE  !(!(ep32 == 0))
[L755]  COND TRUE   ((int)r2) == 2
[L757]  COND TRUE   ((int)max2) == ((int)id2)
[L759]              st2 = 1
[L760]              mode2 = 0
[L762]  COND TRUE   !(mode3 == 0)
[L764]  COND FALSE  !(r3 == 255)
[L770]              r3 = r3 + 1
[L771]  COND FALSE  !(!(ep13 == 0))
[L779]  COND FALSE  !(!(ep23 == 0))
[L787]  COND TRUE   ((int)r3) == 2
[L789]  COND TRUE   ((int)max3) == ((int)id3)
[L791]              st3 = 1
[L792]              mode3 = 0
[L793]              p12_old = p12_new
[L794]              p12_new = nomsg
[L795]              p13_old = p13_new
[L796]              p13_new = nomsg
[L797]              p21_old = p21_new
[L798]              p21_new = nomsg
[L799]              p23_old = p23_new
[L800]              p23_new = nomsg
[L801]              p31_old = p31_new
[L802]              p31_new = nomsg
[L803]              p32_old = p32_new
[L804]              p32_new = nomsg
[L806]              int check__tmp;
[L807]  COND FALSE  !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1)
[L813]              check__tmp = 0
[L814]              __return_2840 = check__tmp
[L815]              main__c1 = __return_2840
[L817]              _Bool __tmp_4;
[L818]              __tmp_4 = main__c1
[L819]              _Bool assert__arg;
[L820]              assert__arg = __tmp_4
[L821]  COND TRUE   assert__arg == 0
[L823]              __VERIFIER_error()

  - UnprovableResult [Line: 1946]: Unable to prove that call of __VERIFIER_error() unreachable
    Unable to prove that call of __VERIFIER_error() unreachable
 Reason: abstract domain could reach this error location. 
Possible FailurePath: 
[L1]                 int __return_main;
[L12]                msg_t nomsg = (msg_t )-1;
[L13]                port_t p12 = 0;
[L14]                char p12_old = '\x0';
[L15]                char p12_new = '\x0';
[L16]                _Bool ep12 = 0;
[L17]                port_t p13 = 0;
[L18]                char p13_old = '\x0';
[L19]                char p13_new = '\x0';
[L20]                _Bool ep13 = 0;
[L21]                port_t p21 = 0;
[L22]                char p21_old = '\x0';
[L23]                char p21_new = '\x0';
[L24]                _Bool ep21 = 0;
[L25]                port_t p23 = 0;
[L26]                char p23_old = '\x0';
[L27]                char p23_new = '\x0';
[L28]                _Bool ep23 = 0;
[L29]                port_t p31 = 0;
[L30]                char p31_old = '\x0';
[L31]                char p31_new = '\x0';
[L32]                _Bool ep31 = 0;
[L33]                port_t p32 = 0;
[L34]                char p32_old = '\x0';
[L35]                char p32_new = '\x0';
[L36]                _Bool ep32 = 0;
[L37]                char id1 = '\x0';
[L38]                unsigned char r1 = '\x0';
[L39]                char st1 = '\x0';
[L40]                char nl1 = '\x0';
[L41]                char m1 = '\x0';
[L42]                char max1 = '\x0';
[L43]                _Bool mode1 = 0;
[L44]                char id2 = '\x0';
[L45]                unsigned char r2 = '\x0';
[L46]                char st2 = '\x0';
[L47]                char nl2 = '\x0';
[L48]                char m2 = '\x0';
[L49]                char max2 = '\x0';
[L50]                _Bool mode2 = 0;
[L51]                char id3 = '\x0';
[L52]                unsigned char r3 = '\x0';
[L53]                char st3 = '\x0';
[L54]                char nl3 = '\x0';
[L55]                char m3 = '\x0';
[L56]                char max3 = '\x0';
[L57]                _Bool mode3 = 0;
[L61]                void (*nodes[3])() = { &node1, &node2, &node3 };
[L65]                int __return_1742;
[L66]                int __return_1870;
[L67]                int __return_1988;
[L68]                int __return_2106;
[L69]                int __return_2840;
[L70]                int __return_2806;
[L71]                int __return_2345;
[L72]                int __return_2726;
[L73]                int __return_2683;
[L74]                int __return_2584;
[L75]                int __return_2553;
[L76]                int __return_2494;
[L77]                int __return_2235;
[L80]                int main__c1;
[L81]                int main__i2;
[L82]                main__c1 = 0
[L83]                ep12 = __VERIFIER_nondet_bool()
[L84]                ep13 = __VERIFIER_nondet_bool()
[L85]                ep21 = __VERIFIER_nondet_bool()
[L86]                ep23 = __VERIFIER_nondet_bool()
[L87]                ep31 = __VERIFIER_nondet_bool()
[L88]                ep32 = __VERIFIER_nondet_bool()
[L89]                id1 = __VERIFIER_nondet_char()
[L90]                r1 = __VERIFIER_nondet_uchar()
[L91]                st1 = __VERIFIER_nondet_char()
[L92]                nl1 = __VERIFIER_nondet_char()
[L93]                m1 = __VERIFIER_nondet_char()
[L94]                max1 = __VERIFIER_nondet_char()
[L95]                mode1 = __VERIFIER_nondet_bool()
[L96]                id2 = __VERIFIER_nondet_char()
[L97]                r2 = __VERIFIER_nondet_uchar()
[L98]                st2 = __VERIFIER_nondet_char()
[L99]                nl2 = __VERIFIER_nondet_char()
[L100]               m2 = __VERIFIER_nondet_char()
[L101]               max2 = __VERIFIER_nondet_char()
[L102]               mode2 = __VERIFIER_nondet_bool()
[L103]               id3 = __VERIFIER_nondet_char()
[L104]               r3 = __VERIFIER_nondet_uchar()
[L105]               st3 = __VERIFIER_nondet_char()
[L106]               nl3 = __VERIFIER_nondet_char()
[L107]               m3 = __VERIFIER_nondet_char()
[L108]               max3 = __VERIFIER_nondet_char()
[L109]               mode3 = __VERIFIER_nondet_bool()
[L111]               _Bool init__r121;
[L112]               _Bool init__r131;
[L113]               _Bool init__r211;
[L114]               _Bool init__r231;
[L115]               _Bool init__r311;
[L116]               _Bool init__r321;
[L117]               _Bool init__r122;
[L118]               int init__tmp;
[L119]               _Bool init__r132;
[L120]               int init__tmp___0;
[L121]               _Bool init__r212;
[L122]               int init__tmp___1;
[L123]               _Bool init__r232;
[L124]               int init__tmp___2;
[L125]               _Bool init__r312;
[L126]               int init__tmp___3;
[L127]               _Bool init__r322;
[L128]               int init__tmp___4;
[L129]               int init__tmp___5;
[L130]               init__r121 = ep12
[L131]               init__r131 = ep13
[L132]               init__r211 = ep21
[L133]               init__r231 = ep23
[L134]               init__r311 = ep31
[L135]               init__r321 = ep32
[L136]   COND TRUE   !(init__r121 == 0)
[L138]               init__tmp = 1
[L140]               init__r122 = (_Bool)init__tmp
[L141]   COND TRUE   !(init__r131 == 0)
[L143]               init__tmp___0 = 1
[L145]               init__r132 = (_Bool)init__tmp___0
[L146]   COND TRUE   !(init__r211 == 0)
[L148]               init__tmp___1 = 1
[L150]               init__r212 = (_Bool)init__tmp___1
[L151]   COND TRUE   !(init__r231 == 0)
[L153]               init__tmp___2 = 1
[L155]               init__r232 = (_Bool)init__tmp___2
[L156]   COND TRUE   !(init__r311 == 0)
[L158]               init__tmp___3 = 1
[L160]               init__r312 = (_Bool)init__tmp___3
[L161]   COND TRUE   !(init__r321 == 0)
[L163]               init__tmp___4 = 1
[L165]               init__r322 = (_Bool)init__tmp___4
[L166]   COND TRUE   ((int)id1) != ((int)id2)
[L168]   COND TRUE   ((int)id1) != ((int)id3)
[L170]   COND TRUE   ((int)id2) != ((int)id3)
[L172]   COND TRUE   ((int)id1) >= 0
[L174]   COND TRUE   ((int)id2) >= 0
[L176]   COND TRUE   ((int)id3) >= 0
[L178]   COND TRUE   ((int)r1) == 0
[L180]   COND TRUE   ((int)r2) == 0
[L182]   COND TRUE   ((int)r3) == 0
[L184]   COND TRUE   !(init__r122 == 0)
[L186]   COND TRUE   !(init__r132 == 0)
[L188]   COND TRUE   !(init__r212 == 0)
[L190]   COND TRUE   !(init__r232 == 0)
[L192]   COND TRUE   !(init__r312 == 0)
[L194]   COND TRUE   !(init__r322 == 0)
[L196]   COND TRUE   ((int)max1) == ((int)id1)
[L198]   COND TRUE   ((int)max2) == ((int)id2)
[L200]   COND TRUE   ((int)max3) == ((int)id3)
[L202]   COND TRUE   ((int)st1) == 0
[L204]   COND TRUE   ((int)st2) == 0
[L206]   COND TRUE   ((int)st3) == 0
[L208]   COND TRUE   ((int)nl1) == 0
[L210]   COND TRUE   ((int)nl2) == 0
[L212]   COND TRUE   ((int)nl3) == 0
[L214]   COND TRUE   ((int)mode1) == 0
[L216]   COND TRUE   ((int)mode2) == 0
[L218]   COND TRUE   ((int)mode3) == 0
[L220]               init__tmp___5 = 1
[L221]               __return_1742 = init__tmp___5
[L222]               main__i2 = __return_1742
[L223]   COND TRUE   main__i2 != 0
[L225]               p12_old = nomsg
[L226]               p12_new = nomsg
[L227]               p13_old = nomsg
[L228]               p13_new = nomsg
[L229]               p21_old = nomsg
[L230]               p21_new = nomsg
[L231]               p23_old = nomsg
[L232]               p23_new = nomsg
[L233]               p31_old = nomsg
[L234]               p31_new = nomsg
[L235]               p32_old = nomsg
[L236]               p32_new = nomsg
[L237]               main__i2 = 0
[L239]   COND FALSE  !(!(mode1 == 0))
[L245]   COND TRUE   ((int)r1) < 2
[L247]   COND FALSE  !(!(ep12 == 0))
[L258]   COND FALSE  !(!(ep13 == 0))
[L269]               mode1 = 1
[L271]   COND FALSE  !(!(mode2 == 0))
[L277]   COND TRUE   ((int)r2) < 2
[L279]   COND FALSE  !(!(ep21 == 0))
[L290]   COND FALSE  !(!(ep23 == 0))
[L301]               mode2 = 1
[L303]   COND FALSE  !(!(mode3 == 0))
[L309]   COND TRUE   ((int)r3) < 2
[L311]   COND FALSE  !(!(ep31 == 0))
[L322]   COND FALSE  !(!(ep32 == 0))
[L333]               mode3 = 1
[L334]               p12_old = p12_new
[L335]               p12_new = nomsg
[L336]               p13_old = p13_new
[L337]               p13_new = nomsg
[L338]               p21_old = p21_new
[L339]               p21_new = nomsg
[L340]               p23_old = p23_new
[L341]               p23_new = nomsg
[L342]               p31_old = p31_new
[L343]               p31_new = nomsg
[L344]               p32_old = p32_new
[L345]               p32_new = nomsg
[L347]               int check__tmp;
[L348]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L350]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L352]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L354]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L356]   COND FALSE  !(((int)r1) >= 2)
[L362]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L364]   COND TRUE   ((int)r1) < 2
[L366]   COND FALSE  !(((int)r1) >= 2)
[L372]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L374]   COND TRUE   ((int)r1) < 2
[L376]               check__tmp = 1
[L377]               __return_1870 = check__tmp
[L378]               main__c1 = __return_1870
[L380]               _Bool __tmp_1;
[L381]               __tmp_1 = main__c1
[L382]               _Bool assert__arg;
[L383]               assert__arg = __tmp_1
[L384]   COND FALSE  !(assert__arg == 0)
[L391]   COND TRUE   !(mode1 == 0)
[L393]   COND FALSE  !(r1 == 255)
[L399]               r1 = r1 + 1
[L400]   COND FALSE  !(!(ep21 == 0))
[L408]   COND FALSE  !(!(ep31 == 0))
[L416]   COND FALSE  !(((int)r1) == 2)
[L422]               mode1 = 0
[L424]   COND TRUE   !(mode2 == 0)
[L426]   COND FALSE  !(r2 == 255)
[L432]               r2 = r2 + 1
[L433]   COND FALSE  !(!(ep12 == 0))
[L441]   COND FALSE  !(!(ep32 == 0))
[L449]   COND FALSE  !(((int)r2) == 2)
[L455]               mode2 = 0
[L457]   COND TRUE   !(mode3 == 0)
[L459]   COND FALSE  !(r3 == 255)
[L465]               r3 = r3 + 1
[L466]   COND FALSE  !(!(ep13 == 0))
[L474]   COND FALSE  !(!(ep23 == 0))
[L482]   COND FALSE  !(((int)r3) == 2)
[L488]               mode3 = 0
[L489]               p12_old = p12_new
[L490]               p12_new = nomsg
[L491]               p13_old = p13_new
[L492]               p13_new = nomsg
[L493]               p21_old = p21_new
[L494]               p21_new = nomsg
[L495]               p23_old = p23_new
[L496]               p23_new = nomsg
[L497]               p31_old = p31_new
[L498]               p31_new = nomsg
[L499]               p32_old = p32_new
[L500]               p32_new = nomsg
[L502]               int check__tmp;
[L503]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L505]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L507]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L509]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L511]   COND FALSE  !(((int)r1) >= 2)
[L517]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L519]   COND TRUE   ((int)r1) < 2
[L521]   COND FALSE  !(((int)r1) >= 2)
[L527]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L529]   COND TRUE   ((int)r1) < 2
[L531]               check__tmp = 1
[L532]               __return_1988 = check__tmp
[L533]               main__c1 = __return_1988
[L535]               _Bool __tmp_2;
[L536]               __tmp_2 = main__c1
[L537]               _Bool assert__arg;
[L538]               assert__arg = __tmp_2
[L539]   COND FALSE  !(assert__arg == 0)
[L546]   COND FALSE  !(!(mode1 == 0))
[L552]   COND TRUE   ((int)r1) < 2
[L554]   COND FALSE  !(!(ep12 == 0))
[L565]   COND FALSE  !(!(ep13 == 0))
[L576]               mode1 = 1
[L578]   COND FALSE  !(!(mode2 == 0))
[L584]   COND TRUE   ((int)r2) < 2
[L586]   COND FALSE  !(!(ep21 == 0))
[L597]   COND FALSE  !(!(ep23 == 0))
[L608]               mode2 = 1
[L610]   COND FALSE  !(!(mode3 == 0))
[L616]   COND TRUE   ((int)r3) < 2
[L618]   COND FALSE  !(!(ep31 == 0))
[L629]   COND FALSE  !(!(ep32 == 0))
[L640]               mode3 = 1
[L641]               p12_old = p12_new
[L642]               p12_new = nomsg
[L643]               p13_old = p13_new
[L644]               p13_new = nomsg
[L645]               p21_old = p21_new
[L646]               p21_new = nomsg
[L647]               p23_old = p23_new
[L648]               p23_new = nomsg
[L649]               p31_old = p31_new
[L650]               p31_new = nomsg
[L651]               p32_old = p32_new
[L652]               p32_new = nomsg
[L654]               int check__tmp;
[L655]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L657]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L659]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L661]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L663]   COND FALSE  !(((int)r1) >= 2)
[L669]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L671]   COND TRUE   ((int)r1) < 2
[L673]   COND FALSE  !(((int)r1) >= 2)
[L679]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L681]   COND TRUE   ((int)r1) < 2
[L683]               check__tmp = 1
[L684]               __return_2106 = check__tmp
[L685]               main__c1 = __return_2106
[L687]               _Bool __tmp_3;
[L688]               __tmp_3 = main__c1
[L689]               _Bool assert__arg;
[L690]               assert__arg = __tmp_3
[L691]   COND FALSE  !(assert__arg == 0)
[L698]   COND TRUE   !(mode1 == 0)
[L700]   COND FALSE  !(r1 == 255)
[L706]               r1 = r1 + 1
[L707]   COND FALSE  !(!(ep21 == 0))
[L715]   COND FALSE  !(!(ep31 == 0))
[L723]   COND TRUE   ((int)r1) == 2
[L725]   COND FALSE  !(((int)max1) == ((int)id1))
[L1805]              st1 = 1
[L1806]              mode1 = 0
[L1808]  COND TRUE   !(mode2 == 0)
[L1810]  COND FALSE  !(r2 == 255)
[L1816]              r2 = r2 + 1
[L1817]  COND FALSE  !(!(ep12 == 0))
[L1825]  COND FALSE  !(!(ep32 == 0))
[L1833]  COND TRUE   ((int)r2) == 2
[L1835]  COND TRUE   ((int)max2) == ((int)id2)
[L1837]              st2 = 1
[L1838]              mode2 = 0
[L1840]  COND TRUE   !(mode3 == 0)
[L1842]  COND FALSE  !(r3 == 255)
[L1848]              r3 = r3 + 1
[L1849]  COND FALSE  !(!(ep13 == 0))
[L1857]  COND FALSE  !(!(ep23 == 0))
[L1865]  COND TRUE   ((int)r3) == 2
[L1867]  COND FALSE  !(((int)max3) == ((int)id3))
[L1914]              nl3 = 1
[L1915]              mode3 = 0
[L1916]              p12_old = p12_new
[L1917]              p12_new = nomsg
[L1918]              p13_old = p13_new
[L1919]              p13_new = nomsg
[L1920]              p21_old = p21_new
[L1921]              p21_new = nomsg
[L1922]              p23_old = p23_new
[L1923]              p23_new = nomsg
[L1924]              p31_old = p31_new
[L1925]              p31_new = nomsg
[L1926]              p32_old = p32_new
[L1927]              p32_new = nomsg
[L1929]              int check__tmp;
[L1930]  COND FALSE  !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1)
[L1936]              check__tmp = 0
[L1937]              __return_2553 = check__tmp
[L1938]              main__c1 = __return_2553
[L1940]              _Bool __tmp_7;
[L1941]              __tmp_7 = main__c1
[L1942]              _Bool assert__arg;
[L1943]              assert__arg = __tmp_7
[L1944]  COND TRUE   assert__arg == 0
[L1946]              __VERIFIER_error()

  - UnprovableResult [Line: 1901]: Unable to prove that call of __VERIFIER_error() unreachable
    Unable to prove that call of __VERIFIER_error() unreachable
 Reason: abstract domain could reach this error location. 
Possible FailurePath: 
[L1]                 int __return_main;
[L12]                msg_t nomsg = (msg_t )-1;
[L13]                port_t p12 = 0;
[L14]                char p12_old = '\x0';
[L15]                char p12_new = '\x0';
[L16]                _Bool ep12 = 0;
[L17]                port_t p13 = 0;
[L18]                char p13_old = '\x0';
[L19]                char p13_new = '\x0';
[L20]                _Bool ep13 = 0;
[L21]                port_t p21 = 0;
[L22]                char p21_old = '\x0';
[L23]                char p21_new = '\x0';
[L24]                _Bool ep21 = 0;
[L25]                port_t p23 = 0;
[L26]                char p23_old = '\x0';
[L27]                char p23_new = '\x0';
[L28]                _Bool ep23 = 0;
[L29]                port_t p31 = 0;
[L30]                char p31_old = '\x0';
[L31]                char p31_new = '\x0';
[L32]                _Bool ep31 = 0;
[L33]                port_t p32 = 0;
[L34]                char p32_old = '\x0';
[L35]                char p32_new = '\x0';
[L36]                _Bool ep32 = 0;
[L37]                char id1 = '\x0';
[L38]                unsigned char r1 = '\x0';
[L39]                char st1 = '\x0';
[L40]                char nl1 = '\x0';
[L41]                char m1 = '\x0';
[L42]                char max1 = '\x0';
[L43]                _Bool mode1 = 0;
[L44]                char id2 = '\x0';
[L45]                unsigned char r2 = '\x0';
[L46]                char st2 = '\x0';
[L47]                char nl2 = '\x0';
[L48]                char m2 = '\x0';
[L49]                char max2 = '\x0';
[L50]                _Bool mode2 = 0;
[L51]                char id3 = '\x0';
[L52]                unsigned char r3 = '\x0';
[L53]                char st3 = '\x0';
[L54]                char nl3 = '\x0';
[L55]                char m3 = '\x0';
[L56]                char max3 = '\x0';
[L57]                _Bool mode3 = 0;
[L61]                void (*nodes[3])() = { &node1, &node2, &node3 };
[L65]                int __return_1742;
[L66]                int __return_1870;
[L67]                int __return_1988;
[L68]                int __return_2106;
[L69]                int __return_2840;
[L70]                int __return_2806;
[L71]                int __return_2345;
[L72]                int __return_2726;
[L73]                int __return_2683;
[L74]                int __return_2584;
[L75]                int __return_2553;
[L76]                int __return_2494;
[L77]                int __return_2235;
[L80]                int main__c1;
[L81]                int main__i2;
[L82]                main__c1 = 0
[L83]                ep12 = __VERIFIER_nondet_bool()
[L84]                ep13 = __VERIFIER_nondet_bool()
[L85]                ep21 = __VERIFIER_nondet_bool()
[L86]                ep23 = __VERIFIER_nondet_bool()
[L87]                ep31 = __VERIFIER_nondet_bool()
[L88]                ep32 = __VERIFIER_nondet_bool()
[L89]                id1 = __VERIFIER_nondet_char()
[L90]                r1 = __VERIFIER_nondet_uchar()
[L91]                st1 = __VERIFIER_nondet_char()
[L92]                nl1 = __VERIFIER_nondet_char()
[L93]                m1 = __VERIFIER_nondet_char()
[L94]                max1 = __VERIFIER_nondet_char()
[L95]                mode1 = __VERIFIER_nondet_bool()
[L96]                id2 = __VERIFIER_nondet_char()
[L97]                r2 = __VERIFIER_nondet_uchar()
[L98]                st2 = __VERIFIER_nondet_char()
[L99]                nl2 = __VERIFIER_nondet_char()
[L100]               m2 = __VERIFIER_nondet_char()
[L101]               max2 = __VERIFIER_nondet_char()
[L102]               mode2 = __VERIFIER_nondet_bool()
[L103]               id3 = __VERIFIER_nondet_char()
[L104]               r3 = __VERIFIER_nondet_uchar()
[L105]               st3 = __VERIFIER_nondet_char()
[L106]               nl3 = __VERIFIER_nondet_char()
[L107]               m3 = __VERIFIER_nondet_char()
[L108]               max3 = __VERIFIER_nondet_char()
[L109]               mode3 = __VERIFIER_nondet_bool()
[L111]               _Bool init__r121;
[L112]               _Bool init__r131;
[L113]               _Bool init__r211;
[L114]               _Bool init__r231;
[L115]               _Bool init__r311;
[L116]               _Bool init__r321;
[L117]               _Bool init__r122;
[L118]               int init__tmp;
[L119]               _Bool init__r132;
[L120]               int init__tmp___0;
[L121]               _Bool init__r212;
[L122]               int init__tmp___1;
[L123]               _Bool init__r232;
[L124]               int init__tmp___2;
[L125]               _Bool init__r312;
[L126]               int init__tmp___3;
[L127]               _Bool init__r322;
[L128]               int init__tmp___4;
[L129]               int init__tmp___5;
[L130]               init__r121 = ep12
[L131]               init__r131 = ep13
[L132]               init__r211 = ep21
[L133]               init__r231 = ep23
[L134]               init__r311 = ep31
[L135]               init__r321 = ep32
[L136]   COND TRUE   !(init__r121 == 0)
[L138]               init__tmp = 1
[L140]               init__r122 = (_Bool)init__tmp
[L141]   COND TRUE   !(init__r131 == 0)
[L143]               init__tmp___0 = 1
[L145]               init__r132 = (_Bool)init__tmp___0
[L146]   COND TRUE   !(init__r211 == 0)
[L148]               init__tmp___1 = 1
[L150]               init__r212 = (_Bool)init__tmp___1
[L151]   COND TRUE   !(init__r231 == 0)
[L153]               init__tmp___2 = 1
[L155]               init__r232 = (_Bool)init__tmp___2
[L156]   COND TRUE   !(init__r311 == 0)
[L158]               init__tmp___3 = 1
[L160]               init__r312 = (_Bool)init__tmp___3
[L161]   COND TRUE   !(init__r321 == 0)
[L163]               init__tmp___4 = 1
[L165]               init__r322 = (_Bool)init__tmp___4
[L166]   COND TRUE   ((int)id1) != ((int)id2)
[L168]   COND TRUE   ((int)id1) != ((int)id3)
[L170]   COND TRUE   ((int)id2) != ((int)id3)
[L172]   COND TRUE   ((int)id1) >= 0
[L174]   COND TRUE   ((int)id2) >= 0
[L176]   COND TRUE   ((int)id3) >= 0
[L178]   COND TRUE   ((int)r1) == 0
[L180]   COND TRUE   ((int)r2) == 0
[L182]   COND TRUE   ((int)r3) == 0
[L184]   COND TRUE   !(init__r122 == 0)
[L186]   COND TRUE   !(init__r132 == 0)
[L188]   COND TRUE   !(init__r212 == 0)
[L190]   COND TRUE   !(init__r232 == 0)
[L192]   COND TRUE   !(init__r312 == 0)
[L194]   COND TRUE   !(init__r322 == 0)
[L196]   COND TRUE   ((int)max1) == ((int)id1)
[L198]   COND TRUE   ((int)max2) == ((int)id2)
[L200]   COND TRUE   ((int)max3) == ((int)id3)
[L202]   COND TRUE   ((int)st1) == 0
[L204]   COND TRUE   ((int)st2) == 0
[L206]   COND TRUE   ((int)st3) == 0
[L208]   COND TRUE   ((int)nl1) == 0
[L210]   COND TRUE   ((int)nl2) == 0
[L212]   COND TRUE   ((int)nl3) == 0
[L214]   COND TRUE   ((int)mode1) == 0
[L216]   COND TRUE   ((int)mode2) == 0
[L218]   COND TRUE   ((int)mode3) == 0
[L220]               init__tmp___5 = 1
[L221]               __return_1742 = init__tmp___5
[L222]               main__i2 = __return_1742
[L223]   COND TRUE   main__i2 != 0
[L225]               p12_old = nomsg
[L226]               p12_new = nomsg
[L227]               p13_old = nomsg
[L228]               p13_new = nomsg
[L229]               p21_old = nomsg
[L230]               p21_new = nomsg
[L231]               p23_old = nomsg
[L232]               p23_new = nomsg
[L233]               p31_old = nomsg
[L234]               p31_new = nomsg
[L235]               p32_old = nomsg
[L236]               p32_new = nomsg
[L237]               main__i2 = 0
[L239]   COND FALSE  !(!(mode1 == 0))
[L245]   COND TRUE   ((int)r1) < 2
[L247]   COND FALSE  !(!(ep12 == 0))
[L258]   COND FALSE  !(!(ep13 == 0))
[L269]               mode1 = 1
[L271]   COND FALSE  !(!(mode2 == 0))
[L277]   COND TRUE   ((int)r2) < 2
[L279]   COND FALSE  !(!(ep21 == 0))
[L290]   COND FALSE  !(!(ep23 == 0))
[L301]               mode2 = 1
[L303]   COND FALSE  !(!(mode3 == 0))
[L309]   COND TRUE   ((int)r3) < 2
[L311]   COND FALSE  !(!(ep31 == 0))
[L322]   COND FALSE  !(!(ep32 == 0))
[L333]               mode3 = 1
[L334]               p12_old = p12_new
[L335]               p12_new = nomsg
[L336]               p13_old = p13_new
[L337]               p13_new = nomsg
[L338]               p21_old = p21_new
[L339]               p21_new = nomsg
[L340]               p23_old = p23_new
[L341]               p23_new = nomsg
[L342]               p31_old = p31_new
[L343]               p31_new = nomsg
[L344]               p32_old = p32_new
[L345]               p32_new = nomsg
[L347]               int check__tmp;
[L348]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L350]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L352]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L354]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L356]   COND FALSE  !(((int)r1) >= 2)
[L362]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L364]   COND TRUE   ((int)r1) < 2
[L366]   COND FALSE  !(((int)r1) >= 2)
[L372]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L374]   COND TRUE   ((int)r1) < 2
[L376]               check__tmp = 1
[L377]               __return_1870 = check__tmp
[L378]               main__c1 = __return_1870
[L380]               _Bool __tmp_1;
[L381]               __tmp_1 = main__c1
[L382]               _Bool assert__arg;
[L383]               assert__arg = __tmp_1
[L384]   COND FALSE  !(assert__arg == 0)
[L391]   COND TRUE   !(mode1 == 0)
[L393]   COND FALSE  !(r1 == 255)
[L399]               r1 = r1 + 1
[L400]   COND FALSE  !(!(ep21 == 0))
[L408]   COND FALSE  !(!(ep31 == 0))
[L416]   COND FALSE  !(((int)r1) == 2)
[L422]               mode1 = 0
[L424]   COND TRUE   !(mode2 == 0)
[L426]   COND FALSE  !(r2 == 255)
[L432]               r2 = r2 + 1
[L433]   COND FALSE  !(!(ep12 == 0))
[L441]   COND FALSE  !(!(ep32 == 0))
[L449]   COND FALSE  !(((int)r2) == 2)
[L455]               mode2 = 0
[L457]   COND TRUE   !(mode3 == 0)
[L459]   COND FALSE  !(r3 == 255)
[L465]               r3 = r3 + 1
[L466]   COND FALSE  !(!(ep13 == 0))
[L474]   COND FALSE  !(!(ep23 == 0))
[L482]   COND FALSE  !(((int)r3) == 2)
[L488]               mode3 = 0
[L489]               p12_old = p12_new
[L490]               p12_new = nomsg
[L491]               p13_old = p13_new
[L492]               p13_new = nomsg
[L493]               p21_old = p21_new
[L494]               p21_new = nomsg
[L495]               p23_old = p23_new
[L496]               p23_new = nomsg
[L497]               p31_old = p31_new
[L498]               p31_new = nomsg
[L499]               p32_old = p32_new
[L500]               p32_new = nomsg
[L502]               int check__tmp;
[L503]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L505]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L507]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L509]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L511]   COND FALSE  !(((int)r1) >= 2)
[L517]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L519]   COND TRUE   ((int)r1) < 2
[L521]   COND FALSE  !(((int)r1) >= 2)
[L527]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L529]   COND TRUE   ((int)r1) < 2
[L531]               check__tmp = 1
[L532]               __return_1988 = check__tmp
[L533]               main__c1 = __return_1988
[L535]               _Bool __tmp_2;
[L536]               __tmp_2 = main__c1
[L537]               _Bool assert__arg;
[L538]               assert__arg = __tmp_2
[L539]   COND FALSE  !(assert__arg == 0)
[L546]   COND FALSE  !(!(mode1 == 0))
[L552]   COND TRUE   ((int)r1) < 2
[L554]   COND FALSE  !(!(ep12 == 0))
[L565]   COND FALSE  !(!(ep13 == 0))
[L576]               mode1 = 1
[L578]   COND FALSE  !(!(mode2 == 0))
[L584]   COND TRUE   ((int)r2) < 2
[L586]   COND FALSE  !(!(ep21 == 0))
[L597]   COND FALSE  !(!(ep23 == 0))
[L608]               mode2 = 1
[L610]   COND FALSE  !(!(mode3 == 0))
[L616]   COND TRUE   ((int)r3) < 2
[L618]   COND FALSE  !(!(ep31 == 0))
[L629]   COND FALSE  !(!(ep32 == 0))
[L640]               mode3 = 1
[L641]               p12_old = p12_new
[L642]               p12_new = nomsg
[L643]               p13_old = p13_new
[L644]               p13_new = nomsg
[L645]               p21_old = p21_new
[L646]               p21_new = nomsg
[L647]               p23_old = p23_new
[L648]               p23_new = nomsg
[L649]               p31_old = p31_new
[L650]               p31_new = nomsg
[L651]               p32_old = p32_new
[L652]               p32_new = nomsg
[L654]               int check__tmp;
[L655]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L657]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L659]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L661]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L663]   COND FALSE  !(((int)r1) >= 2)
[L669]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L671]   COND TRUE   ((int)r1) < 2
[L673]   COND FALSE  !(((int)r1) >= 2)
[L679]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L681]   COND TRUE   ((int)r1) < 2
[L683]               check__tmp = 1
[L684]               __return_2106 = check__tmp
[L685]               main__c1 = __return_2106
[L687]               _Bool __tmp_3;
[L688]               __tmp_3 = main__c1
[L689]               _Bool assert__arg;
[L690]               assert__arg = __tmp_3
[L691]   COND FALSE  !(assert__arg == 0)
[L698]   COND TRUE   !(mode1 == 0)
[L700]   COND FALSE  !(r1 == 255)
[L706]               r1 = r1 + 1
[L707]   COND FALSE  !(!(ep21 == 0))
[L715]   COND FALSE  !(!(ep31 == 0))
[L723]   COND TRUE   ((int)r1) == 2
[L725]   COND FALSE  !(((int)max1) == ((int)id1))
[L1805]              st1 = 1
[L1806]              mode1 = 0
[L1808]  COND TRUE   !(mode2 == 0)
[L1810]  COND FALSE  !(r2 == 255)
[L1816]              r2 = r2 + 1
[L1817]  COND FALSE  !(!(ep12 == 0))
[L1825]  COND FALSE  !(!(ep32 == 0))
[L1833]  COND TRUE   ((int)r2) == 2
[L1835]  COND TRUE   ((int)max2) == ((int)id2)
[L1837]              st2 = 1
[L1838]              mode2 = 0
[L1840]  COND TRUE   !(mode3 == 0)
[L1842]  COND FALSE  !(r3 == 255)
[L1848]              r3 = r3 + 1
[L1849]  COND FALSE  !(!(ep13 == 0))
[L1857]  COND FALSE  !(!(ep23 == 0))
[L1865]  COND TRUE   ((int)r3) == 2
[L1867]  COND TRUE   ((int)max3) == ((int)id3)
[L1869]              st3 = 1
[L1870]              mode3 = 0
[L1871]              p12_old = p12_new
[L1872]              p12_new = nomsg
[L1873]              p13_old = p13_new
[L1874]              p13_new = nomsg
[L1875]              p21_old = p21_new
[L1876]              p21_new = nomsg
[L1877]              p23_old = p23_new
[L1878]              p23_new = nomsg
[L1879]              p31_old = p31_new
[L1880]              p31_new = nomsg
[L1881]              p32_old = p32_new
[L1882]              p32_new = nomsg
[L1884]              int check__tmp;
[L1885]  COND FALSE  !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1)
[L1891]              check__tmp = 0
[L1892]              __return_2584 = check__tmp
[L1893]              main__c1 = __return_2584
[L1895]              _Bool __tmp_6;
[L1896]              __tmp_6 = main__c1
[L1897]              _Bool assert__arg;
[L1898]              assert__arg = __tmp_6
[L1899]  COND TRUE   assert__arg == 0
[L1901]              __VERIFIER_error()

  - UnprovableResult [Line: 2056]: Unable to prove that call of __VERIFIER_error() unreachable
    Unable to prove that call of __VERIFIER_error() unreachable
 Reason: abstract domain could reach this error location. 
Possible FailurePath: 
[L1]                 int __return_main;
[L12]                msg_t nomsg = (msg_t )-1;
[L13]                port_t p12 = 0;
[L14]                char p12_old = '\x0';
[L15]                char p12_new = '\x0';
[L16]                _Bool ep12 = 0;
[L17]                port_t p13 = 0;
[L18]                char p13_old = '\x0';
[L19]                char p13_new = '\x0';
[L20]                _Bool ep13 = 0;
[L21]                port_t p21 = 0;
[L22]                char p21_old = '\x0';
[L23]                char p21_new = '\x0';
[L24]                _Bool ep21 = 0;
[L25]                port_t p23 = 0;
[L26]                char p23_old = '\x0';
[L27]                char p23_new = '\x0';
[L28]                _Bool ep23 = 0;
[L29]                port_t p31 = 0;
[L30]                char p31_old = '\x0';
[L31]                char p31_new = '\x0';
[L32]                _Bool ep31 = 0;
[L33]                port_t p32 = 0;
[L34]                char p32_old = '\x0';
[L35]                char p32_new = '\x0';
[L36]                _Bool ep32 = 0;
[L37]                char id1 = '\x0';
[L38]                unsigned char r1 = '\x0';
[L39]                char st1 = '\x0';
[L40]                char nl1 = '\x0';
[L41]                char m1 = '\x0';
[L42]                char max1 = '\x0';
[L43]                _Bool mode1 = 0;
[L44]                char id2 = '\x0';
[L45]                unsigned char r2 = '\x0';
[L46]                char st2 = '\x0';
[L47]                char nl2 = '\x0';
[L48]                char m2 = '\x0';
[L49]                char max2 = '\x0';
[L50]                _Bool mode2 = 0;
[L51]                char id3 = '\x0';
[L52]                unsigned char r3 = '\x0';
[L53]                char st3 = '\x0';
[L54]                char nl3 = '\x0';
[L55]                char m3 = '\x0';
[L56]                char max3 = '\x0';
[L57]                _Bool mode3 = 0;
[L61]                void (*nodes[3])() = { &node1, &node2, &node3 };
[L65]                int __return_1742;
[L66]                int __return_1870;
[L67]                int __return_1988;
[L68]                int __return_2106;
[L69]                int __return_2840;
[L70]                int __return_2806;
[L71]                int __return_2345;
[L72]                int __return_2726;
[L73]                int __return_2683;
[L74]                int __return_2584;
[L75]                int __return_2553;
[L76]                int __return_2494;
[L77]                int __return_2235;
[L80]                int main__c1;
[L81]                int main__i2;
[L82]                main__c1 = 0
[L83]                ep12 = __VERIFIER_nondet_bool()
[L84]                ep13 = __VERIFIER_nondet_bool()
[L85]                ep21 = __VERIFIER_nondet_bool()
[L86]                ep23 = __VERIFIER_nondet_bool()
[L87]                ep31 = __VERIFIER_nondet_bool()
[L88]                ep32 = __VERIFIER_nondet_bool()
[L89]                id1 = __VERIFIER_nondet_char()
[L90]                r1 = __VERIFIER_nondet_uchar()
[L91]                st1 = __VERIFIER_nondet_char()
[L92]                nl1 = __VERIFIER_nondet_char()
[L93]                m1 = __VERIFIER_nondet_char()
[L94]                max1 = __VERIFIER_nondet_char()
[L95]                mode1 = __VERIFIER_nondet_bool()
[L96]                id2 = __VERIFIER_nondet_char()
[L97]                r2 = __VERIFIER_nondet_uchar()
[L98]                st2 = __VERIFIER_nondet_char()
[L99]                nl2 = __VERIFIER_nondet_char()
[L100]               m2 = __VERIFIER_nondet_char()
[L101]               max2 = __VERIFIER_nondet_char()
[L102]               mode2 = __VERIFIER_nondet_bool()
[L103]               id3 = __VERIFIER_nondet_char()
[L104]               r3 = __VERIFIER_nondet_uchar()
[L105]               st3 = __VERIFIER_nondet_char()
[L106]               nl3 = __VERIFIER_nondet_char()
[L107]               m3 = __VERIFIER_nondet_char()
[L108]               max3 = __VERIFIER_nondet_char()
[L109]               mode3 = __VERIFIER_nondet_bool()
[L111]               _Bool init__r121;
[L112]               _Bool init__r131;
[L113]               _Bool init__r211;
[L114]               _Bool init__r231;
[L115]               _Bool init__r311;
[L116]               _Bool init__r321;
[L117]               _Bool init__r122;
[L118]               int init__tmp;
[L119]               _Bool init__r132;
[L120]               int init__tmp___0;
[L121]               _Bool init__r212;
[L122]               int init__tmp___1;
[L123]               _Bool init__r232;
[L124]               int init__tmp___2;
[L125]               _Bool init__r312;
[L126]               int init__tmp___3;
[L127]               _Bool init__r322;
[L128]               int init__tmp___4;
[L129]               int init__tmp___5;
[L130]               init__r121 = ep12
[L131]               init__r131 = ep13
[L132]               init__r211 = ep21
[L133]               init__r231 = ep23
[L134]               init__r311 = ep31
[L135]               init__r321 = ep32
[L136]   COND TRUE   !(init__r121 == 0)
[L138]               init__tmp = 1
[L140]               init__r122 = (_Bool)init__tmp
[L141]   COND TRUE   !(init__r131 == 0)
[L143]               init__tmp___0 = 1
[L145]               init__r132 = (_Bool)init__tmp___0
[L146]   COND TRUE   !(init__r211 == 0)
[L148]               init__tmp___1 = 1
[L150]               init__r212 = (_Bool)init__tmp___1
[L151]   COND TRUE   !(init__r231 == 0)
[L153]               init__tmp___2 = 1
[L155]               init__r232 = (_Bool)init__tmp___2
[L156]   COND TRUE   !(init__r311 == 0)
[L158]               init__tmp___3 = 1
[L160]               init__r312 = (_Bool)init__tmp___3
[L161]   COND TRUE   !(init__r321 == 0)
[L163]               init__tmp___4 = 1
[L165]               init__r322 = (_Bool)init__tmp___4
[L166]   COND TRUE   ((int)id1) != ((int)id2)
[L168]   COND TRUE   ((int)id1) != ((int)id3)
[L170]   COND TRUE   ((int)id2) != ((int)id3)
[L172]   COND TRUE   ((int)id1) >= 0
[L174]   COND TRUE   ((int)id2) >= 0
[L176]   COND TRUE   ((int)id3) >= 0
[L178]   COND TRUE   ((int)r1) == 0
[L180]   COND TRUE   ((int)r2) == 0
[L182]   COND TRUE   ((int)r3) == 0
[L184]   COND TRUE   !(init__r122 == 0)
[L186]   COND TRUE   !(init__r132 == 0)
[L188]   COND TRUE   !(init__r212 == 0)
[L190]   COND TRUE   !(init__r232 == 0)
[L192]   COND TRUE   !(init__r312 == 0)
[L194]   COND TRUE   !(init__r322 == 0)
[L196]   COND TRUE   ((int)max1) == ((int)id1)
[L198]   COND TRUE   ((int)max2) == ((int)id2)
[L200]   COND TRUE   ((int)max3) == ((int)id3)
[L202]   COND TRUE   ((int)st1) == 0
[L204]   COND TRUE   ((int)st2) == 0
[L206]   COND TRUE   ((int)st3) == 0
[L208]   COND TRUE   ((int)nl1) == 0
[L210]   COND TRUE   ((int)nl2) == 0
[L212]   COND TRUE   ((int)nl3) == 0
[L214]   COND TRUE   ((int)mode1) == 0
[L216]   COND TRUE   ((int)mode2) == 0
[L218]   COND TRUE   ((int)mode3) == 0
[L220]               init__tmp___5 = 1
[L221]               __return_1742 = init__tmp___5
[L222]               main__i2 = __return_1742
[L223]   COND TRUE   main__i2 != 0
[L225]               p12_old = nomsg
[L226]               p12_new = nomsg
[L227]               p13_old = nomsg
[L228]               p13_new = nomsg
[L229]               p21_old = nomsg
[L230]               p21_new = nomsg
[L231]               p23_old = nomsg
[L232]               p23_new = nomsg
[L233]               p31_old = nomsg
[L234]               p31_new = nomsg
[L235]               p32_old = nomsg
[L236]               p32_new = nomsg
[L237]               main__i2 = 0
[L239]   COND FALSE  !(!(mode1 == 0))
[L245]   COND TRUE   ((int)r1) < 2
[L247]   COND FALSE  !(!(ep12 == 0))
[L258]   COND FALSE  !(!(ep13 == 0))
[L269]               mode1 = 1
[L271]   COND FALSE  !(!(mode2 == 0))
[L277]   COND TRUE   ((int)r2) < 2
[L279]   COND FALSE  !(!(ep21 == 0))
[L290]   COND FALSE  !(!(ep23 == 0))
[L301]               mode2 = 1
[L303]   COND FALSE  !(!(mode3 == 0))
[L309]   COND TRUE   ((int)r3) < 2
[L311]   COND FALSE  !(!(ep31 == 0))
[L322]   COND FALSE  !(!(ep32 == 0))
[L333]               mode3 = 1
[L334]               p12_old = p12_new
[L335]               p12_new = nomsg
[L336]               p13_old = p13_new
[L337]               p13_new = nomsg
[L338]               p21_old = p21_new
[L339]               p21_new = nomsg
[L340]               p23_old = p23_new
[L341]               p23_new = nomsg
[L342]               p31_old = p31_new
[L343]               p31_new = nomsg
[L344]               p32_old = p32_new
[L345]               p32_new = nomsg
[L347]               int check__tmp;
[L348]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L350]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L352]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L354]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L356]   COND FALSE  !(((int)r1) >= 2)
[L362]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L364]   COND TRUE   ((int)r1) < 2
[L366]   COND FALSE  !(((int)r1) >= 2)
[L372]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L374]   COND TRUE   ((int)r1) < 2
[L376]               check__tmp = 1
[L377]               __return_1870 = check__tmp
[L378]               main__c1 = __return_1870
[L380]               _Bool __tmp_1;
[L381]               __tmp_1 = main__c1
[L382]               _Bool assert__arg;
[L383]               assert__arg = __tmp_1
[L384]   COND FALSE  !(assert__arg == 0)
[L391]   COND TRUE   !(mode1 == 0)
[L393]   COND FALSE  !(r1 == 255)
[L399]               r1 = r1 + 1
[L400]   COND FALSE  !(!(ep21 == 0))
[L408]   COND FALSE  !(!(ep31 == 0))
[L416]   COND FALSE  !(((int)r1) == 2)
[L422]               mode1 = 0
[L424]   COND TRUE   !(mode2 == 0)
[L426]   COND FALSE  !(r2 == 255)
[L432]               r2 = r2 + 1
[L433]   COND FALSE  !(!(ep12 == 0))
[L441]   COND FALSE  !(!(ep32 == 0))
[L449]   COND FALSE  !(((int)r2) == 2)
[L455]               mode2 = 0
[L457]   COND TRUE   !(mode3 == 0)
[L459]   COND FALSE  !(r3 == 255)
[L465]               r3 = r3 + 1
[L466]   COND FALSE  !(!(ep13 == 0))
[L474]   COND FALSE  !(!(ep23 == 0))
[L482]   COND FALSE  !(((int)r3) == 2)
[L488]               mode3 = 0
[L489]               p12_old = p12_new
[L490]               p12_new = nomsg
[L491]               p13_old = p13_new
[L492]               p13_new = nomsg
[L493]               p21_old = p21_new
[L494]               p21_new = nomsg
[L495]               p23_old = p23_new
[L496]               p23_new = nomsg
[L497]               p31_old = p31_new
[L498]               p31_new = nomsg
[L499]               p32_old = p32_new
[L500]               p32_new = nomsg
[L502]               int check__tmp;
[L503]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L505]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L507]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L509]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L511]   COND FALSE  !(((int)r1) >= 2)
[L517]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L519]   COND TRUE   ((int)r1) < 2
[L521]   COND FALSE  !(((int)r1) >= 2)
[L527]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L529]   COND TRUE   ((int)r1) < 2
[L531]               check__tmp = 1
[L532]               __return_1988 = check__tmp
[L533]               main__c1 = __return_1988
[L535]               _Bool __tmp_2;
[L536]               __tmp_2 = main__c1
[L537]               _Bool assert__arg;
[L538]               assert__arg = __tmp_2
[L539]   COND FALSE  !(assert__arg == 0)
[L546]   COND FALSE  !(!(mode1 == 0))
[L552]   COND TRUE   ((int)r1) < 2
[L554]   COND FALSE  !(!(ep12 == 0))
[L565]   COND FALSE  !(!(ep13 == 0))
[L576]               mode1 = 1
[L578]   COND FALSE  !(!(mode2 == 0))
[L584]   COND TRUE   ((int)r2) < 2
[L586]   COND FALSE  !(!(ep21 == 0))
[L597]   COND FALSE  !(!(ep23 == 0))
[L608]               mode2 = 1
[L610]   COND FALSE  !(!(mode3 == 0))
[L616]   COND TRUE   ((int)r3) < 2
[L618]   COND FALSE  !(!(ep31 == 0))
[L629]   COND FALSE  !(!(ep32 == 0))
[L640]               mode3 = 1
[L641]               p12_old = p12_new
[L642]               p12_new = nomsg
[L643]               p13_old = p13_new
[L644]               p13_new = nomsg
[L645]               p21_old = p21_new
[L646]               p21_new = nomsg
[L647]               p23_old = p23_new
[L648]               p23_new = nomsg
[L649]               p31_old = p31_new
[L650]               p31_new = nomsg
[L651]               p32_old = p32_new
[L652]               p32_new = nomsg
[L654]               int check__tmp;
[L655]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L657]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L659]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L661]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L663]   COND FALSE  !(((int)r1) >= 2)
[L669]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L671]   COND TRUE   ((int)r1) < 2
[L673]   COND FALSE  !(((int)r1) >= 2)
[L679]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L681]   COND TRUE   ((int)r1) < 2
[L683]               check__tmp = 1
[L684]               __return_2106 = check__tmp
[L685]               main__c1 = __return_2106
[L687]               _Bool __tmp_3;
[L688]               __tmp_3 = main__c1
[L689]               _Bool assert__arg;
[L690]               assert__arg = __tmp_3
[L691]   COND FALSE  !(assert__arg == 0)
[L698]   COND TRUE   !(mode1 == 0)
[L700]   COND FALSE  !(r1 == 255)
[L706]               r1 = r1 + 1
[L707]   COND FALSE  !(!(ep21 == 0))
[L715]   COND FALSE  !(!(ep31 == 0))
[L723]   COND TRUE   ((int)r1) == 2
[L725]   COND FALSE  !(((int)max1) == ((int)id1))
[L1805]              st1 = 1
[L1806]              mode1 = 0
[L1808]  COND TRUE   !(mode2 == 0)
[L1810]  COND FALSE  !(r2 == 255)
[L1816]              r2 = r2 + 1
[L1817]  COND FALSE  !(!(ep12 == 0))
[L1825]  COND FALSE  !(!(ep32 == 0))
[L1833]  COND TRUE   ((int)r2) == 2
[L1835]  COND FALSE  !(((int)max2) == ((int)id2))
[L1992]              nl2 = 1
[L1993]              mode2 = 0
[L1995]  COND TRUE   !(mode3 == 0)
[L1997]  COND FALSE  !(r3 == 255)
[L2003]              r3 = r3 + 1
[L2004]  COND FALSE  !(!(ep13 == 0))
[L2012]  COND FALSE  !(!(ep23 == 0))
[L2020]  COND TRUE   ((int)r3) == 2
[L2022]  COND TRUE   ((int)max3) == ((int)id3)
[L2024]              st3 = 1
[L2025]              mode3 = 0
[L2026]              p12_old = p12_new
[L2027]              p12_new = nomsg
[L2028]              p13_old = p13_new
[L2029]              p13_new = nomsg
[L2030]              p21_old = p21_new
[L2031]              p21_new = nomsg
[L2032]              p23_old = p23_new
[L2033]              p23_new = nomsg
[L2034]              p31_old = p31_new
[L2035]              p31_new = nomsg
[L2036]              p32_old = p32_new
[L2037]              p32_new = nomsg
[L2039]              int check__tmp;
[L2040]  COND FALSE  !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1)
[L2046]              check__tmp = 0
[L2047]              __return_2494 = check__tmp
[L2048]              main__c1 = __return_2494
[L2050]              _Bool __tmp_8;
[L2051]              __tmp_8 = main__c1
[L2052]              _Bool assert__arg;
[L2053]              assert__arg = __tmp_8
[L2054]  COND TRUE   assert__arg == 0
[L2056]              __VERIFIER_error()

  - UnprovableResult [Line: 888]: Unable to prove that call of __VERIFIER_error() unreachable
    Unable to prove that call of __VERIFIER_error() unreachable
 Reason: abstract domain could reach this error location. 
Possible FailurePath: 
[L1]                 int __return_main;
[L12]                msg_t nomsg = (msg_t )-1;
[L13]                port_t p12 = 0;
[L14]                char p12_old = '\x0';
[L15]                char p12_new = '\x0';
[L16]                _Bool ep12 = 0;
[L17]                port_t p13 = 0;
[L18]                char p13_old = '\x0';
[L19]                char p13_new = '\x0';
[L20]                _Bool ep13 = 0;
[L21]                port_t p21 = 0;
[L22]                char p21_old = '\x0';
[L23]                char p21_new = '\x0';
[L24]                _Bool ep21 = 0;
[L25]                port_t p23 = 0;
[L26]                char p23_old = '\x0';
[L27]                char p23_new = '\x0';
[L28]                _Bool ep23 = 0;
[L29]                port_t p31 = 0;
[L30]                char p31_old = '\x0';
[L31]                char p31_new = '\x0';
[L32]                _Bool ep31 = 0;
[L33]                port_t p32 = 0;
[L34]                char p32_old = '\x0';
[L35]                char p32_new = '\x0';
[L36]                _Bool ep32 = 0;
[L37]                char id1 = '\x0';
[L38]                unsigned char r1 = '\x0';
[L39]                char st1 = '\x0';
[L40]                char nl1 = '\x0';
[L41]                char m1 = '\x0';
[L42]                char max1 = '\x0';
[L43]                _Bool mode1 = 0;
[L44]                char id2 = '\x0';
[L45]                unsigned char r2 = '\x0';
[L46]                char st2 = '\x0';
[L47]                char nl2 = '\x0';
[L48]                char m2 = '\x0';
[L49]                char max2 = '\x0';
[L50]                _Bool mode2 = 0;
[L51]                char id3 = '\x0';
[L52]                unsigned char r3 = '\x0';
[L53]                char st3 = '\x0';
[L54]                char nl3 = '\x0';
[L55]                char m3 = '\x0';
[L56]                char max3 = '\x0';
[L57]                _Bool mode3 = 0;
[L61]                void (*nodes[3])() = { &node1, &node2, &node3 };
[L65]                int __return_1742;
[L66]                int __return_1870;
[L67]                int __return_1988;
[L68]                int __return_2106;
[L69]                int __return_2840;
[L70]                int __return_2806;
[L71]                int __return_2345;
[L72]                int __return_2726;
[L73]                int __return_2683;
[L74]                int __return_2584;
[L75]                int __return_2553;
[L76]                int __return_2494;
[L77]                int __return_2235;
[L80]                int main__c1;
[L81]                int main__i2;
[L82]                main__c1 = 0
[L83]                ep12 = __VERIFIER_nondet_bool()
[L84]                ep13 = __VERIFIER_nondet_bool()
[L85]                ep21 = __VERIFIER_nondet_bool()
[L86]                ep23 = __VERIFIER_nondet_bool()
[L87]                ep31 = __VERIFIER_nondet_bool()
[L88]                ep32 = __VERIFIER_nondet_bool()
[L89]                id1 = __VERIFIER_nondet_char()
[L90]                r1 = __VERIFIER_nondet_uchar()
[L91]                st1 = __VERIFIER_nondet_char()
[L92]                nl1 = __VERIFIER_nondet_char()
[L93]                m1 = __VERIFIER_nondet_char()
[L94]                max1 = __VERIFIER_nondet_char()
[L95]                mode1 = __VERIFIER_nondet_bool()
[L96]                id2 = __VERIFIER_nondet_char()
[L97]                r2 = __VERIFIER_nondet_uchar()
[L98]                st2 = __VERIFIER_nondet_char()
[L99]                nl2 = __VERIFIER_nondet_char()
[L100]               m2 = __VERIFIER_nondet_char()
[L101]               max2 = __VERIFIER_nondet_char()
[L102]               mode2 = __VERIFIER_nondet_bool()
[L103]               id3 = __VERIFIER_nondet_char()
[L104]               r3 = __VERIFIER_nondet_uchar()
[L105]               st3 = __VERIFIER_nondet_char()
[L106]               nl3 = __VERIFIER_nondet_char()
[L107]               m3 = __VERIFIER_nondet_char()
[L108]               max3 = __VERIFIER_nondet_char()
[L109]               mode3 = __VERIFIER_nondet_bool()
[L111]               _Bool init__r121;
[L112]               _Bool init__r131;
[L113]               _Bool init__r211;
[L114]               _Bool init__r231;
[L115]               _Bool init__r311;
[L116]               _Bool init__r321;
[L117]               _Bool init__r122;
[L118]               int init__tmp;
[L119]               _Bool init__r132;
[L120]               int init__tmp___0;
[L121]               _Bool init__r212;
[L122]               int init__tmp___1;
[L123]               _Bool init__r232;
[L124]               int init__tmp___2;
[L125]               _Bool init__r312;
[L126]               int init__tmp___3;
[L127]               _Bool init__r322;
[L128]               int init__tmp___4;
[L129]               int init__tmp___5;
[L130]               init__r121 = ep12
[L131]               init__r131 = ep13
[L132]               init__r211 = ep21
[L133]               init__r231 = ep23
[L134]               init__r311 = ep31
[L135]               init__r321 = ep32
[L136]   COND TRUE   !(init__r121 == 0)
[L138]               init__tmp = 1
[L140]               init__r122 = (_Bool)init__tmp
[L141]   COND TRUE   !(init__r131 == 0)
[L143]               init__tmp___0 = 1
[L145]               init__r132 = (_Bool)init__tmp___0
[L146]   COND TRUE   !(init__r211 == 0)
[L148]               init__tmp___1 = 1
[L150]               init__r212 = (_Bool)init__tmp___1
[L151]   COND TRUE   !(init__r231 == 0)
[L153]               init__tmp___2 = 1
[L155]               init__r232 = (_Bool)init__tmp___2
[L156]   COND TRUE   !(init__r311 == 0)
[L158]               init__tmp___3 = 1
[L160]               init__r312 = (_Bool)init__tmp___3
[L161]   COND TRUE   !(init__r321 == 0)
[L163]               init__tmp___4 = 1
[L165]               init__r322 = (_Bool)init__tmp___4
[L166]   COND TRUE   ((int)id1) != ((int)id2)
[L168]   COND TRUE   ((int)id1) != ((int)id3)
[L170]   COND TRUE   ((int)id2) != ((int)id3)
[L172]   COND TRUE   ((int)id1) >= 0
[L174]   COND TRUE   ((int)id2) >= 0
[L176]   COND TRUE   ((int)id3) >= 0
[L178]   COND TRUE   ((int)r1) == 0
[L180]   COND TRUE   ((int)r2) == 0
[L182]   COND TRUE   ((int)r3) == 0
[L184]   COND TRUE   !(init__r122 == 0)
[L186]   COND TRUE   !(init__r132 == 0)
[L188]   COND TRUE   !(init__r212 == 0)
[L190]   COND TRUE   !(init__r232 == 0)
[L192]   COND TRUE   !(init__r312 == 0)
[L194]   COND TRUE   !(init__r322 == 0)
[L196]   COND TRUE   ((int)max1) == ((int)id1)
[L198]   COND TRUE   ((int)max2) == ((int)id2)
[L200]   COND TRUE   ((int)max3) == ((int)id3)
[L202]   COND TRUE   ((int)st1) == 0
[L204]   COND TRUE   ((int)st2) == 0
[L206]   COND TRUE   ((int)st3) == 0
[L208]   COND TRUE   ((int)nl1) == 0
[L210]   COND TRUE   ((int)nl2) == 0
[L212]   COND TRUE   ((int)nl3) == 0
[L214]   COND TRUE   ((int)mode1) == 0
[L216]   COND TRUE   ((int)mode2) == 0
[L218]   COND TRUE   ((int)mode3) == 0
[L220]               init__tmp___5 = 1
[L221]               __return_1742 = init__tmp___5
[L222]               main__i2 = __return_1742
[L223]   COND TRUE   main__i2 != 0
[L225]               p12_old = nomsg
[L226]               p12_new = nomsg
[L227]               p13_old = nomsg
[L228]               p13_new = nomsg
[L229]               p21_old = nomsg
[L230]               p21_new = nomsg
[L231]               p23_old = nomsg
[L232]               p23_new = nomsg
[L233]               p31_old = nomsg
[L234]               p31_new = nomsg
[L235]               p32_old = nomsg
[L236]               p32_new = nomsg
[L237]               main__i2 = 0
[L239]   COND FALSE  !(!(mode1 == 0))
[L245]   COND TRUE   ((int)r1) < 2
[L247]   COND FALSE  !(!(ep12 == 0))
[L258]   COND FALSE  !(!(ep13 == 0))
[L269]               mode1 = 1
[L271]   COND FALSE  !(!(mode2 == 0))
[L277]   COND TRUE   ((int)r2) < 2
[L279]   COND FALSE  !(!(ep21 == 0))
[L290]   COND FALSE  !(!(ep23 == 0))
[L301]               mode2 = 1
[L303]   COND FALSE  !(!(mode3 == 0))
[L309]   COND TRUE   ((int)r3) < 2
[L311]   COND FALSE  !(!(ep31 == 0))
[L322]   COND FALSE  !(!(ep32 == 0))
[L333]               mode3 = 1
[L334]               p12_old = p12_new
[L335]               p12_new = nomsg
[L336]               p13_old = p13_new
[L337]               p13_new = nomsg
[L338]               p21_old = p21_new
[L339]               p21_new = nomsg
[L340]               p23_old = p23_new
[L341]               p23_new = nomsg
[L342]               p31_old = p31_new
[L343]               p31_new = nomsg
[L344]               p32_old = p32_new
[L345]               p32_new = nomsg
[L347]               int check__tmp;
[L348]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L350]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L352]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L354]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L356]   COND FALSE  !(((int)r1) >= 2)
[L362]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L364]   COND TRUE   ((int)r1) < 2
[L366]   COND FALSE  !(((int)r1) >= 2)
[L372]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L374]   COND TRUE   ((int)r1) < 2
[L376]               check__tmp = 1
[L377]               __return_1870 = check__tmp
[L378]               main__c1 = __return_1870
[L380]               _Bool __tmp_1;
[L381]               __tmp_1 = main__c1
[L382]               _Bool assert__arg;
[L383]               assert__arg = __tmp_1
[L384]   COND FALSE  !(assert__arg == 0)
[L391]   COND TRUE   !(mode1 == 0)
[L393]   COND FALSE  !(r1 == 255)
[L399]               r1 = r1 + 1
[L400]   COND FALSE  !(!(ep21 == 0))
[L408]   COND FALSE  !(!(ep31 == 0))
[L416]   COND FALSE  !(((int)r1) == 2)
[L422]               mode1 = 0
[L424]   COND TRUE   !(mode2 == 0)
[L426]   COND FALSE  !(r2 == 255)
[L432]               r2 = r2 + 1
[L433]   COND FALSE  !(!(ep12 == 0))
[L441]   COND FALSE  !(!(ep32 == 0))
[L449]   COND FALSE  !(((int)r2) == 2)
[L455]               mode2 = 0
[L457]   COND TRUE   !(mode3 == 0)
[L459]   COND FALSE  !(r3 == 255)
[L465]               r3 = r3 + 1
[L466]   COND FALSE  !(!(ep13 == 0))
[L474]   COND FALSE  !(!(ep23 == 0))
[L482]   COND FALSE  !(((int)r3) == 2)
[L488]               mode3 = 0
[L489]               p12_old = p12_new
[L490]               p12_new = nomsg
[L491]               p13_old = p13_new
[L492]               p13_new = nomsg
[L493]               p21_old = p21_new
[L494]               p21_new = nomsg
[L495]               p23_old = p23_new
[L496]               p23_new = nomsg
[L497]               p31_old = p31_new
[L498]               p31_new = nomsg
[L499]               p32_old = p32_new
[L500]               p32_new = nomsg
[L502]               int check__tmp;
[L503]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L505]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L507]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L509]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L511]   COND FALSE  !(((int)r1) >= 2)
[L517]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L519]   COND TRUE   ((int)r1) < 2
[L521]   COND FALSE  !(((int)r1) >= 2)
[L527]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L529]   COND TRUE   ((int)r1) < 2
[L531]               check__tmp = 1
[L532]               __return_1988 = check__tmp
[L533]               main__c1 = __return_1988
[L535]               _Bool __tmp_2;
[L536]               __tmp_2 = main__c1
[L537]               _Bool assert__arg;
[L538]               assert__arg = __tmp_2
[L539]   COND FALSE  !(assert__arg == 0)
[L546]   COND FALSE  !(!(mode1 == 0))
[L552]   COND TRUE   ((int)r1) < 2
[L554]   COND FALSE  !(!(ep12 == 0))
[L565]   COND FALSE  !(!(ep13 == 0))
[L576]               mode1 = 1
[L578]   COND FALSE  !(!(mode2 == 0))
[L584]   COND TRUE   ((int)r2) < 2
[L586]   COND FALSE  !(!(ep21 == 0))
[L597]   COND FALSE  !(!(ep23 == 0))
[L608]               mode2 = 1
[L610]   COND FALSE  !(!(mode3 == 0))
[L616]   COND TRUE   ((int)r3) < 2
[L618]   COND FALSE  !(!(ep31 == 0))
[L629]   COND FALSE  !(!(ep32 == 0))
[L640]               mode3 = 1
[L641]               p12_old = p12_new
[L642]               p12_new = nomsg
[L643]               p13_old = p13_new
[L644]               p13_new = nomsg
[L645]               p21_old = p21_new
[L646]               p21_new = nomsg
[L647]               p23_old = p23_new
[L648]               p23_new = nomsg
[L649]               p31_old = p31_new
[L650]               p31_new = nomsg
[L651]               p32_old = p32_new
[L652]               p32_new = nomsg
[L654]               int check__tmp;
[L655]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L657]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L659]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L661]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L663]   COND FALSE  !(((int)r1) >= 2)
[L669]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L671]   COND TRUE   ((int)r1) < 2
[L673]   COND FALSE  !(((int)r1) >= 2)
[L679]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L681]   COND TRUE   ((int)r1) < 2
[L683]               check__tmp = 1
[L684]               __return_2106 = check__tmp
[L685]               main__c1 = __return_2106
[L687]               _Bool __tmp_3;
[L688]               __tmp_3 = main__c1
[L689]               _Bool assert__arg;
[L690]               assert__arg = __tmp_3
[L691]   COND FALSE  !(assert__arg == 0)
[L698]   COND TRUE   !(mode1 == 0)
[L700]   COND FALSE  !(r1 == 255)
[L706]               r1 = r1 + 1
[L707]   COND FALSE  !(!(ep21 == 0))
[L715]   COND FALSE  !(!(ep31 == 0))
[L723]   COND TRUE   ((int)r1) == 2
[L725]   COND TRUE   ((int)max1) == ((int)id1)
[L727]               nl1 = 1
[L728]               mode1 = 0
[L730]   COND TRUE   !(mode2 == 0)
[L732]   COND FALSE  !(r2 == 255)
[L738]               r2 = r2 + 1
[L739]   COND FALSE  !(!(ep12 == 0))
[L747]   COND FALSE  !(!(ep32 == 0))
[L755]   COND TRUE   ((int)r2) == 2
[L757]   COND FALSE  !(((int)max2) == ((int)id2))
[L1527]              nl2 = 1
[L1528]              mode2 = 0
[L1530]  COND TRUE   !(mode3 == 0)
[L1532]  COND FALSE  !(r3 == 255)
[L1538]              r3 = r3 + 1
[L1539]  COND FALSE  !(!(ep13 == 0))
[L1547]  COND FALSE  !(!(ep23 == 0))
[L1555]  COND TRUE   ((int)r3) == 2
[L1557]  COND FALSE  !(((int)max3) == ((int)id3))
[L1666]              nl3 = 1
[L1667]              mode3 = 0
[L1668]              p12_old = p12_new
[L1669]              p12_new = nomsg
[L1670]              p13_old = p13_new
[L1671]              p13_new = nomsg
[L1672]              p21_old = p21_new
[L1673]              p21_new = nomsg
[L1674]              p23_old = p23_new
[L1675]              p23_new = nomsg
[L1676]              p31_old = p31_new
[L1677]              p31_new = nomsg
[L1678]              p32_old = p32_new
[L1679]              p32_new = nomsg
[L1681]              int check__tmp;
[L1682]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L1684]  COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L1686]  COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L1688]  COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L1690]  COND TRUE   ((int)r1) >= 2
[L1692]  COND FALSE  !(((int)r1) < 2)
[L1698]  COND FALSE  !(((((int)st1) + ((int)st2)) + ((int)st3)) == 1)
[L1704]              check__tmp = 0
[L1705]              __return_2683 = check__tmp
[L1706]              main__c1 = __return_2683
[L882]               _Bool __tmp_5;
[L883]               __tmp_5 = main__c1
[L884]               _Bool assert__arg;
[L885]               assert__arg = __tmp_5
[L886]   COND TRUE   assert__arg == 0
[L888]               __VERIFIER_error()

RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
Received shutdown request...