/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.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c


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


This is Ultimate 0.1.24-fb55353
[2019-11-07 07:07:49,426 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-11-07 07:07:49,428 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-11-07 07:07:49,448 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-11-07 07:07:49,448 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-11-07 07:07:49,450 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-11-07 07:07:49,452 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2019-11-07 07:07:49,478 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-11-07 07:07:49,480 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-11-07 07:07:49,481 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-11-07 07:07:49,482 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-11-07 07:07:49,487 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
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[2019-11-07 07:07:49,510 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 07:07:49,542 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-11-07 07:07:49,542 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-07 07:07:49,544 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-11-07 07:07:49,546 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-11-07 07:07:49,546 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-11-07 07:07:49,549 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-07 07:07:49,549 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-11-07 07:07:49,549 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-11-07 07:07:49,549 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-11-07 07:07:49,549 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-11-07 07:07:49,551 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-11-07 07:07:49,551 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-07 07:07:49,551 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-11-07 07:07:49,551 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-11-07 07:07:49,553 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-11-07 07:07:49,553 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-11-07 07:07:49,553 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-11-07 07:07:49,553 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-07 07:07:49,554 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-11-07 07:07:49,554 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-11-07 07:07:49,554 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-11-07 07:07:49,554 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-07 07:07:49,555 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-07 07:07:49,557 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-11-07 07:07:49,557 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-07 07:07:49,557 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-11-07 07:07:49,558 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-11-07 07:07:49,560 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-07 07:07:49,560 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 07:07:49,831 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-07 07:07:49,852 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-07 07:07:49,855 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-07 07:07:49,857 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-11-07 07:07:49,858 INFO  L275        PluginConnector]: CDTParser initialized
[2019-11-07 07:07:49,859 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-11-07 07:07:49,932 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ff7982d/be787557e7df4b4b87efc57ac36ef171/FLAGf0b7a1a9d
[2019-11-07 07:07:50,563 INFO  L306              CDTParser]: Found 1 translation units.
[2019-11-07 07:07:50,565 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.3.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c
[2019-11-07 07:07:50,590 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ff7982d/be787557e7df4b4b87efc57ac36ef171/FLAGf0b7a1a9d
[2019-11-07 07:07:50,837 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44ff7982d/be787557e7df4b4b87efc57ac36ef171
[2019-11-07 07:07:50,846 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-07 07:07:50,848 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-11-07 07:07:50,849 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-07 07:07:50,849 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-07 07:07:50,854 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-07 07:07:50,855 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:07:50" (1/1) ...
[2019-11-07 07:07:50,858 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307bb290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:50, skipping insertion in model container
[2019-11-07 07:07:50,858 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:07:50" (1/1) ...
[2019-11-07 07:07:50,863 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-11-07 07:07:50,941 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-11-07 07:07:51,572 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-07 07:07:51,600 INFO  L188         MainTranslator]: Completed pre-run
[2019-11-07 07:07:52,024 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-07 07:07:52,046 INFO  L192         MainTranslator]: Completed translation
[2019-11-07 07:07:52,046 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:52 WrapperNode
[2019-11-07 07:07:52,047 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-07 07:07:52,047 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-07 07:07:52,047 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-07 07:07:52,047 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-11-07 07:07:52,058 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:52" (1/1) ...
[2019-11-07 07:07:52,058 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:52" (1/1) ...
[2019-11-07 07:07:52,077 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:52" (1/1) ...
[2019-11-07 07:07:52,078 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:52" (1/1) ...
[2019-11-07 07:07:52,108 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:52" (1/1) ...
[2019-11-07 07:07:52,137 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:52" (1/1) ...
[2019-11-07 07:07:52,142 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:52" (1/1) ...
[2019-11-07 07:07:52,150 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-07 07:07:52,151 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-07 07:07:52,151 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-11-07 07:07:52,151 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-11-07 07:07:52,152 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:07:52" (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 07:07:52,231 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-11-07 07:07:52,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-07 07:07:52,232 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-11-07 07:07:52,232 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-11-07 07:07:52,233 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-11-07 07:07:52,234 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar
[2019-11-07 07:07:52,234 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool
[2019-11-07 07:07:52,234 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2019-11-07 07:07:52,234 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-11-07 07:07:52,234 INFO  L130     BoogieDeclarations]: Found specification of procedure read
[2019-11-07 07:07:52,235 INFO  L130     BoogieDeclarations]: Found specification of procedure write
[2019-11-07 07:07:52,235 INFO  L130     BoogieDeclarations]: Found specification of procedure node1
[2019-11-07 07:07:52,236 INFO  L130     BoogieDeclarations]: Found specification of procedure node2
[2019-11-07 07:07:52,236 INFO  L130     BoogieDeclarations]: Found specification of procedure node3
[2019-11-07 07:07:52,237 INFO  L130     BoogieDeclarations]: Found specification of procedure init
[2019-11-07 07:07:52,237 INFO  L130     BoogieDeclarations]: Found specification of procedure check
[2019-11-07 07:07:52,240 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-11-07 07:07:52,240 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-11-07 07:07:52,241 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-07 07:07:53,858 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-07 07:07:53,858 INFO  L284             CfgBuilder]: Removed 0 assume(true) statements.
[2019-11-07 07:07:53,860 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:07:53 BoogieIcfgContainer
[2019-11-07 07:07:53,860 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-07 07:07:53,861 INFO  L113        PluginConnector]: ------------------------Abstract Interpretation----------------------------
[2019-11-07 07:07:53,861 INFO  L271        PluginConnector]: Initializing Abstract Interpretation...
[2019-11-07 07:07:53,862 INFO  L275        PluginConnector]: Abstract Interpretation initialized
[2019-11-07 07:07:53,863 INFO  L185        PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:07:53" (1/1) ...
[2019-11-07 07:07:53,923 INFO  L101         FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)
[2019-11-07 07:07:54,174 WARN  L79         EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation.
[2019-11-07 07:08:02,839 INFO  L263    AbstractInterpreter]: Some error location(s) were reachable
[2019-11-07 07:08:02,945 INFO  L272    AbstractInterpreter]: Visited 669 different actions 12821 times. Merged at 425 different actions 6754 times. Widened at 100 different actions 967 times. Performed 40425 root evaluator evaluations with a maximum evaluation depth of 5. Performed 40425 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 3531 fixpoints after 275 different actions. Largest state had 223 variables.
[2019-11-07 07:08:02,946 INFO  L132        PluginConnector]: ------------------------ END Abstract Interpretation----------------------------
[2019-11-07 07:08:02,949 INFO  L168              Benchmark]: Toolchain (without parser) took 12099.76 ms. Allocated memory was 146.3 MB in the beginning and 478.7 MB in the end (delta: 332.4 MB). Free memory was 100.9 MB in the beginning and 260.6 MB in the end (delta: -159.7 MB). Peak memory consumption was 172.7 MB. Max. memory is 7.1 GB.
[2019-11-07 07:08:02,950 INFO  L168              Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-11-07 07:08:02,951 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 1197.95 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.7 MB in the beginning and 163.8 MB in the end (delta: -63.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB.
[2019-11-07 07:08:02,952 INFO  L168              Benchmark]: Boogie Preprocessor took 103.58 ms. Allocated memory is still 205.0 MB. Free memory was 163.8 MB in the beginning and 159.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
[2019-11-07 07:08:02,953 INFO  L168              Benchmark]: RCFGBuilder took 1709.33 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 159.0 MB in the beginning and 111.3 MB in the end (delta: 47.7 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB.
[2019-11-07 07:08:02,954 INFO  L168              Benchmark]: Abstract Interpretation took 9084.70 ms. Allocated memory was 235.9 MB in the beginning and 478.7 MB in the end (delta: 242.7 MB). Free memory was 111.3 MB in the beginning and 260.6 MB in the end (delta: -149.3 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB.
[2019-11-07 07:08:02,958 INFO  L335   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.22 ms. Allocated memory is still 146.3 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
 * CACSL2BoogieTranslator took 1197.95 ms. Allocated memory was 146.3 MB in the beginning and 205.0 MB in the end (delta: 58.7 MB). Free memory was 100.7 MB in the beginning and 163.8 MB in the end (delta: -63.1 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB.
 * Boogie Preprocessor took 103.58 ms. Allocated memory is still 205.0 MB. Free memory was 163.8 MB in the beginning and 159.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB.
 * RCFGBuilder took 1709.33 ms. Allocated memory was 205.0 MB in the beginning and 235.9 MB in the end (delta: 30.9 MB). Free memory was 159.0 MB in the beginning and 111.3 MB in the end (delta: 47.7 MB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB.
 * Abstract Interpretation took 9084.70 ms. Allocated memory was 235.9 MB in the beginning and 478.7 MB in the end (delta: 242.7 MB). Free memory was 111.3 MB in the beginning and 260.6 MB in the end (delta: -149.3 MB). Peak memory consumption was 93.4 MB. Max. memory is 7.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2:
  - UnprovableResult [Line: 1793]: 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_1719;
[L66]                int __return_1847;
[L67]                int __return_1965;
[L68]                int __return_2067;
[L69]                int __return_2801;
[L70]                int __return_2770;
[L71]                int __return_2711;
[L72]                int __return_2677;
[L73]                int __return_2300;
[L74]                int __return_2572;
[L75]                int __return_2538;
[L76]                int __return_2458;
[L77]                int __return_2190;
[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_1719 = init__tmp___5
[L222]               main__i2 = __return_1719
[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) < 1
[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_1847 = check__tmp
[L378]               main__c1 = __return_1847
[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_1965 = check__tmp
[L533]               main__c1 = __return_1965
[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 FALSE  !(((int)r1) < 1)
[L558]               mode1 = 1
[L560]   COND FALSE  !(!(mode2 == 0))
[L566]   COND TRUE   ((int)r2) < 2
[L568]   COND FALSE  !(!(ep21 == 0))
[L579]   COND FALSE  !(!(ep23 == 0))
[L590]               mode2 = 1
[L592]   COND FALSE  !(!(mode3 == 0))
[L598]   COND TRUE   ((int)r3) < 2
[L600]   COND FALSE  !(!(ep31 == 0))
[L611]   COND FALSE  !(!(ep32 == 0))
[L622]               mode3 = 1
[L623]               p12_old = p12_new
[L624]               p12_new = nomsg
[L625]               p13_old = p13_new
[L626]               p13_new = nomsg
[L627]               p21_old = p21_new
[L628]               p21_new = nomsg
[L629]               p23_old = p23_new
[L630]               p23_new = nomsg
[L631]               p31_old = p31_new
[L632]               p31_new = nomsg
[L633]               p32_old = p32_new
[L634]               p32_new = nomsg
[L636]               int check__tmp;
[L637]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L639]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L641]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L643]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L645]   COND FALSE  !(((int)r1) >= 2)
[L651]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L653]   COND TRUE   ((int)r1) < 2
[L655]   COND FALSE  !(((int)r1) >= 2)
[L661]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L663]   COND TRUE   ((int)r1) < 2
[L665]               check__tmp = 1
[L666]               __return_2067 = check__tmp
[L667]               main__c1 = __return_2067
[L669]               _Bool __tmp_3;
[L670]               __tmp_3 = main__c1
[L671]               _Bool assert__arg;
[L672]               assert__arg = __tmp_3
[L673]   COND FALSE  !(assert__arg == 0)
[L680]   COND TRUE   !(mode1 == 0)
[L682]   COND FALSE  !(r1 == 255)
[L688]               r1 = r1 + 1
[L689]   COND FALSE  !(!(ep21 == 0))
[L697]   COND FALSE  !(!(ep31 == 0))
[L705]   COND TRUE   ((int)r1) == 2
[L707]   COND FALSE  !(((int)max1) == ((int)id1))
[L1697]              nl1 = 1
[L1698]              mode1 = 0
[L1700]  COND TRUE   !(mode2 == 0)
[L1702]  COND FALSE  !(r2 == 255)
[L1708]              r2 = r2 + 1
[L1709]  COND FALSE  !(!(ep12 == 0))
[L1717]  COND FALSE  !(!(ep32 == 0))
[L1725]  COND TRUE   ((int)r2) == 2
[L1727]  COND TRUE   ((int)max2) == ((int)id2)
[L1729]              st2 = 1
[L1730]              mode2 = 0
[L1732]  COND TRUE   !(mode3 == 0)
[L1734]  COND FALSE  !(r3 == 255)
[L1740]              r3 = r3 + 1
[L1741]  COND FALSE  !(!(ep13 == 0))
[L1749]  COND FALSE  !(!(ep23 == 0))
[L1757]  COND TRUE   ((int)r3) == 2
[L1759]  COND TRUE   ((int)max3) == ((int)id3)
[L1761]              st3 = 1
[L1762]              mode3 = 0
[L1763]              p12_old = p12_new
[L1764]              p12_new = nomsg
[L1765]              p13_old = p13_new
[L1766]              p13_new = nomsg
[L1767]              p21_old = p21_new
[L1768]              p21_new = nomsg
[L1769]              p23_old = p23_new
[L1770]              p23_new = nomsg
[L1771]              p31_old = p31_new
[L1772]              p31_new = nomsg
[L1773]              p32_old = p32_new
[L1774]              p32_new = nomsg
[L1776]              int check__tmp;
[L1777]  COND FALSE  !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1)
[L1783]              check__tmp = 0
[L1784]              __return_2572 = check__tmp
[L1785]              main__c1 = __return_2572
[L1787]              _Bool __tmp_8;
[L1788]              __tmp_8 = main__c1
[L1789]              _Bool assert__arg;
[L1790]              assert__arg = __tmp_8
[L1791]  COND TRUE   assert__arg == 0
[L1793]              __VERIFIER_error()

  - UnprovableResult [Line: 960]: 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_1719;
[L66]               int __return_1847;
[L67]               int __return_1965;
[L68]               int __return_2067;
[L69]               int __return_2801;
[L70]               int __return_2770;
[L71]               int __return_2711;
[L72]               int __return_2677;
[L73]               int __return_2300;
[L74]               int __return_2572;
[L75]               int __return_2538;
[L76]               int __return_2458;
[L77]               int __return_2190;
[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_1719 = init__tmp___5
[L222]              main__i2 = __return_1719
[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) < 1
[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_1847 = check__tmp
[L378]              main__c1 = __return_1847
[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_1965 = check__tmp
[L533]              main__c1 = __return_1965
[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 FALSE  !(((int)r1) < 1)
[L558]              mode1 = 1
[L560]  COND FALSE  !(!(mode2 == 0))
[L566]  COND TRUE   ((int)r2) < 2
[L568]  COND FALSE  !(!(ep21 == 0))
[L579]  COND FALSE  !(!(ep23 == 0))
[L590]              mode2 = 1
[L592]  COND FALSE  !(!(mode3 == 0))
[L598]  COND TRUE   ((int)r3) < 2
[L600]  COND FALSE  !(!(ep31 == 0))
[L611]  COND FALSE  !(!(ep32 == 0))
[L622]              mode3 = 1
[L623]              p12_old = p12_new
[L624]              p12_new = nomsg
[L625]              p13_old = p13_new
[L626]              p13_new = nomsg
[L627]              p21_old = p21_new
[L628]              p21_new = nomsg
[L629]              p23_old = p23_new
[L630]              p23_new = nomsg
[L631]              p31_old = p31_new
[L632]              p31_new = nomsg
[L633]              p32_old = p32_new
[L634]              p32_new = nomsg
[L636]              int check__tmp;
[L637]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L639]  COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L641]  COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L643]  COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L645]  COND FALSE  !(((int)r1) >= 2)
[L651]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L653]  COND TRUE   ((int)r1) < 2
[L655]  COND FALSE  !(((int)r1) >= 2)
[L661]  COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L663]  COND TRUE   ((int)r1) < 2
[L665]              check__tmp = 1
[L666]              __return_2067 = check__tmp
[L667]              main__c1 = __return_2067
[L669]              _Bool __tmp_3;
[L670]              __tmp_3 = main__c1
[L671]              _Bool assert__arg;
[L672]              assert__arg = __tmp_3
[L673]  COND FALSE  !(assert__arg == 0)
[L680]  COND TRUE   !(mode1 == 0)
[L682]  COND FALSE  !(r1 == 255)
[L688]              r1 = r1 + 1
[L689]  COND FALSE  !(!(ep21 == 0))
[L697]  COND FALSE  !(!(ep31 == 0))
[L705]  COND TRUE   ((int)r1) == 2
[L707]  COND TRUE   ((int)max1) == ((int)id1)
[L709]              st1 = 1
[L710]              mode1 = 0
[L712]  COND TRUE   !(mode2 == 0)
[L714]  COND FALSE  !(r2 == 255)
[L720]              r2 = r2 + 1
[L721]  COND FALSE  !(!(ep12 == 0))
[L729]  COND FALSE  !(!(ep32 == 0))
[L737]  COND TRUE   ((int)r2) == 2
[L739]  COND FALSE  !(((int)max2) == ((int)id2))
[L896]              nl2 = 1
[L897]              mode2 = 0
[L899]  COND TRUE   !(mode3 == 0)
[L901]  COND FALSE  !(r3 == 255)
[L907]              r3 = r3 + 1
[L908]  COND FALSE  !(!(ep13 == 0))
[L916]  COND FALSE  !(!(ep23 == 0))
[L924]  COND TRUE   ((int)r3) == 2
[L926]  COND TRUE   ((int)max3) == ((int)id3)
[L928]              st3 = 1
[L929]              mode3 = 0
[L930]              p12_old = p12_new
[L931]              p12_new = nomsg
[L932]              p13_old = p13_new
[L933]              p13_new = nomsg
[L934]              p21_old = p21_new
[L935]              p21_new = nomsg
[L936]              p23_old = p23_new
[L937]              p23_new = nomsg
[L938]              p31_old = p31_new
[L939]              p31_new = nomsg
[L940]              p32_old = p32_new
[L941]              p32_new = nomsg
[L943]              int check__tmp;
[L944]  COND FALSE  !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1)
[L950]              check__tmp = 0
[L951]              __return_2711 = check__tmp
[L952]              main__c1 = __return_2711
[L954]              _Bool __tmp_6;
[L955]              __tmp_6 = main__c1
[L956]              _Bool assert__arg;
[L957]              assert__arg = __tmp_6
[L958]  COND TRUE   assert__arg == 0
[L960]              __VERIFIER_error()

  - UnprovableResult [Line: 805]: 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_1719;
[L66]               int __return_1847;
[L67]               int __return_1965;
[L68]               int __return_2067;
[L69]               int __return_2801;
[L70]               int __return_2770;
[L71]               int __return_2711;
[L72]               int __return_2677;
[L73]               int __return_2300;
[L74]               int __return_2572;
[L75]               int __return_2538;
[L76]               int __return_2458;
[L77]               int __return_2190;
[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_1719 = init__tmp___5
[L222]              main__i2 = __return_1719
[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) < 1
[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_1847 = check__tmp
[L378]              main__c1 = __return_1847
[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_1965 = check__tmp
[L533]              main__c1 = __return_1965
[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 FALSE  !(((int)r1) < 1)
[L558]              mode1 = 1
[L560]  COND FALSE  !(!(mode2 == 0))
[L566]  COND TRUE   ((int)r2) < 2
[L568]  COND FALSE  !(!(ep21 == 0))
[L579]  COND FALSE  !(!(ep23 == 0))
[L590]              mode2 = 1
[L592]  COND FALSE  !(!(mode3 == 0))
[L598]  COND TRUE   ((int)r3) < 2
[L600]  COND FALSE  !(!(ep31 == 0))
[L611]  COND FALSE  !(!(ep32 == 0))
[L622]              mode3 = 1
[L623]              p12_old = p12_new
[L624]              p12_new = nomsg
[L625]              p13_old = p13_new
[L626]              p13_new = nomsg
[L627]              p21_old = p21_new
[L628]              p21_new = nomsg
[L629]              p23_old = p23_new
[L630]              p23_new = nomsg
[L631]              p31_old = p31_new
[L632]              p31_new = nomsg
[L633]              p32_old = p32_new
[L634]              p32_new = nomsg
[L636]              int check__tmp;
[L637]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L639]  COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L641]  COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L643]  COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L645]  COND FALSE  !(((int)r1) >= 2)
[L651]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L653]  COND TRUE   ((int)r1) < 2
[L655]  COND FALSE  !(((int)r1) >= 2)
[L661]  COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L663]  COND TRUE   ((int)r1) < 2
[L665]              check__tmp = 1
[L666]              __return_2067 = check__tmp
[L667]              main__c1 = __return_2067
[L669]              _Bool __tmp_3;
[L670]              __tmp_3 = main__c1
[L671]              _Bool assert__arg;
[L672]              assert__arg = __tmp_3
[L673]  COND FALSE  !(assert__arg == 0)
[L680]  COND TRUE   !(mode1 == 0)
[L682]  COND FALSE  !(r1 == 255)
[L688]              r1 = r1 + 1
[L689]  COND FALSE  !(!(ep21 == 0))
[L697]  COND FALSE  !(!(ep31 == 0))
[L705]  COND TRUE   ((int)r1) == 2
[L707]  COND TRUE   ((int)max1) == ((int)id1)
[L709]              st1 = 1
[L710]              mode1 = 0
[L712]  COND TRUE   !(mode2 == 0)
[L714]  COND FALSE  !(r2 == 255)
[L720]              r2 = r2 + 1
[L721]  COND FALSE  !(!(ep12 == 0))
[L729]  COND FALSE  !(!(ep32 == 0))
[L737]  COND TRUE   ((int)r2) == 2
[L739]  COND TRUE   ((int)max2) == ((int)id2)
[L741]              st2 = 1
[L742]              mode2 = 0
[L744]  COND TRUE   !(mode3 == 0)
[L746]  COND FALSE  !(r3 == 255)
[L752]              r3 = r3 + 1
[L753]  COND FALSE  !(!(ep13 == 0))
[L761]  COND FALSE  !(!(ep23 == 0))
[L769]  COND TRUE   ((int)r3) == 2
[L771]  COND TRUE   ((int)max3) == ((int)id3)
[L773]              st3 = 1
[L774]              mode3 = 0
[L775]              p12_old = p12_new
[L776]              p12_new = nomsg
[L777]              p13_old = p13_new
[L778]              p13_new = nomsg
[L779]              p21_old = p21_new
[L780]              p21_new = nomsg
[L781]              p23_old = p23_new
[L782]              p23_new = nomsg
[L783]              p31_old = p31_new
[L784]              p31_new = nomsg
[L785]              p32_old = p32_new
[L786]              p32_new = nomsg
[L788]              int check__tmp;
[L789]  COND FALSE  !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1)
[L795]              check__tmp = 0
[L796]              __return_2801 = check__tmp
[L797]              main__c1 = __return_2801
[L799]              _Bool __tmp_4;
[L800]              __tmp_4 = main__c1
[L801]              _Bool assert__arg;
[L802]              assert__arg = __tmp_4
[L803]  COND TRUE   assert__arg == 0
[L805]              __VERIFIER_error()

  - UnprovableResult [Line: 850]: 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_1719;
[L66]               int __return_1847;
[L67]               int __return_1965;
[L68]               int __return_2067;
[L69]               int __return_2801;
[L70]               int __return_2770;
[L71]               int __return_2711;
[L72]               int __return_2677;
[L73]               int __return_2300;
[L74]               int __return_2572;
[L75]               int __return_2538;
[L76]               int __return_2458;
[L77]               int __return_2190;
[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_1719 = init__tmp___5
[L222]              main__i2 = __return_1719
[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) < 1
[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_1847 = check__tmp
[L378]              main__c1 = __return_1847
[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_1965 = check__tmp
[L533]              main__c1 = __return_1965
[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 FALSE  !(((int)r1) < 1)
[L558]              mode1 = 1
[L560]  COND FALSE  !(!(mode2 == 0))
[L566]  COND TRUE   ((int)r2) < 2
[L568]  COND FALSE  !(!(ep21 == 0))
[L579]  COND FALSE  !(!(ep23 == 0))
[L590]              mode2 = 1
[L592]  COND FALSE  !(!(mode3 == 0))
[L598]  COND TRUE   ((int)r3) < 2
[L600]  COND FALSE  !(!(ep31 == 0))
[L611]  COND FALSE  !(!(ep32 == 0))
[L622]              mode3 = 1
[L623]              p12_old = p12_new
[L624]              p12_new = nomsg
[L625]              p13_old = p13_new
[L626]              p13_new = nomsg
[L627]              p21_old = p21_new
[L628]              p21_new = nomsg
[L629]              p23_old = p23_new
[L630]              p23_new = nomsg
[L631]              p31_old = p31_new
[L632]              p31_new = nomsg
[L633]              p32_old = p32_new
[L634]              p32_new = nomsg
[L636]              int check__tmp;
[L637]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L639]  COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L641]  COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L643]  COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L645]  COND FALSE  !(((int)r1) >= 2)
[L651]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L653]  COND TRUE   ((int)r1) < 2
[L655]  COND FALSE  !(((int)r1) >= 2)
[L661]  COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L663]  COND TRUE   ((int)r1) < 2
[L665]              check__tmp = 1
[L666]              __return_2067 = check__tmp
[L667]              main__c1 = __return_2067
[L669]              _Bool __tmp_3;
[L670]              __tmp_3 = main__c1
[L671]              _Bool assert__arg;
[L672]              assert__arg = __tmp_3
[L673]  COND FALSE  !(assert__arg == 0)
[L680]  COND TRUE   !(mode1 == 0)
[L682]  COND FALSE  !(r1 == 255)
[L688]              r1 = r1 + 1
[L689]  COND FALSE  !(!(ep21 == 0))
[L697]  COND FALSE  !(!(ep31 == 0))
[L705]  COND TRUE   ((int)r1) == 2
[L707]  COND TRUE   ((int)max1) == ((int)id1)
[L709]              st1 = 1
[L710]              mode1 = 0
[L712]  COND TRUE   !(mode2 == 0)
[L714]  COND FALSE  !(r2 == 255)
[L720]              r2 = r2 + 1
[L721]  COND FALSE  !(!(ep12 == 0))
[L729]  COND FALSE  !(!(ep32 == 0))
[L737]  COND TRUE   ((int)r2) == 2
[L739]  COND TRUE   ((int)max2) == ((int)id2)
[L741]              st2 = 1
[L742]              mode2 = 0
[L744]  COND TRUE   !(mode3 == 0)
[L746]  COND FALSE  !(r3 == 255)
[L752]              r3 = r3 + 1
[L753]  COND FALSE  !(!(ep13 == 0))
[L761]  COND FALSE  !(!(ep23 == 0))
[L769]  COND TRUE   ((int)r3) == 2
[L771]  COND FALSE  !(((int)max3) == ((int)id3))
[L818]              nl3 = 1
[L819]              mode3 = 0
[L820]              p12_old = p12_new
[L821]              p12_new = nomsg
[L822]              p13_old = p13_new
[L823]              p13_new = nomsg
[L824]              p21_old = p21_new
[L825]              p21_new = nomsg
[L826]              p23_old = p23_new
[L827]              p23_new = nomsg
[L828]              p31_old = p31_new
[L829]              p31_new = nomsg
[L830]              p32_old = p32_new
[L831]              p32_new = nomsg
[L833]              int check__tmp;
[L834]  COND FALSE  !(((((int)st1) + ((int)st2)) + ((int)st3)) <= 1)
[L840]              check__tmp = 0
[L841]              __return_2770 = check__tmp
[L842]              main__c1 = __return_2770
[L844]              _Bool __tmp_5;
[L845]              __tmp_5 = main__c1
[L846]              _Bool assert__arg;
[L847]              assert__arg = __tmp_5
[L848]  COND TRUE   assert__arg == 0
[L850]              __VERIFIER_error()

  - UnprovableResult [Line: 1025]: 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_1719;
[L66]                int __return_1847;
[L67]                int __return_1965;
[L68]                int __return_2067;
[L69]                int __return_2801;
[L70]                int __return_2770;
[L71]                int __return_2711;
[L72]                int __return_2677;
[L73]                int __return_2300;
[L74]                int __return_2572;
[L75]                int __return_2538;
[L76]                int __return_2458;
[L77]                int __return_2190;
[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_1719 = init__tmp___5
[L222]               main__i2 = __return_1719
[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) < 1
[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_1847 = check__tmp
[L378]               main__c1 = __return_1847
[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_1965 = check__tmp
[L533]               main__c1 = __return_1965
[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 FALSE  !(((int)r1) < 1)
[L558]               mode1 = 1
[L560]   COND FALSE  !(!(mode2 == 0))
[L566]   COND TRUE   ((int)r2) < 2
[L568]   COND FALSE  !(!(ep21 == 0))
[L579]   COND FALSE  !(!(ep23 == 0))
[L590]               mode2 = 1
[L592]   COND FALSE  !(!(mode3 == 0))
[L598]   COND TRUE   ((int)r3) < 2
[L600]   COND FALSE  !(!(ep31 == 0))
[L611]   COND FALSE  !(!(ep32 == 0))
[L622]               mode3 = 1
[L623]               p12_old = p12_new
[L624]               p12_new = nomsg
[L625]               p13_old = p13_new
[L626]               p13_new = nomsg
[L627]               p21_old = p21_new
[L628]               p21_new = nomsg
[L629]               p23_old = p23_new
[L630]               p23_new = nomsg
[L631]               p31_old = p31_new
[L632]               p31_new = nomsg
[L633]               p32_old = p32_new
[L634]               p32_new = nomsg
[L636]               int check__tmp;
[L637]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L639]   COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L641]   COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L643]   COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L645]   COND FALSE  !(((int)r1) >= 2)
[L651]   COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) == 0
[L653]   COND TRUE   ((int)r1) < 2
[L655]   COND FALSE  !(((int)r1) >= 2)
[L661]   COND TRUE   ((((int)nl1) + ((int)nl2)) + ((int)nl3)) == 0
[L663]   COND TRUE   ((int)r1) < 2
[L665]               check__tmp = 1
[L666]               __return_2067 = check__tmp
[L667]               main__c1 = __return_2067
[L669]               _Bool __tmp_3;
[L670]               __tmp_3 = main__c1
[L671]               _Bool assert__arg;
[L672]               assert__arg = __tmp_3
[L673]   COND FALSE  !(assert__arg == 0)
[L680]   COND TRUE   !(mode1 == 0)
[L682]   COND FALSE  !(r1 == 255)
[L688]               r1 = r1 + 1
[L689]   COND FALSE  !(!(ep21 == 0))
[L697]   COND FALSE  !(!(ep31 == 0))
[L705]   COND TRUE   ((int)r1) == 2
[L707]   COND FALSE  !(((int)max1) == ((int)id1))
[L1697]              nl1 = 1
[L1698]              mode1 = 0
[L1700]  COND TRUE   !(mode2 == 0)
[L1702]  COND FALSE  !(r2 == 255)
[L1708]              r2 = r2 + 1
[L1709]  COND FALSE  !(!(ep12 == 0))
[L1717]  COND FALSE  !(!(ep32 == 0))
[L1725]  COND TRUE   ((int)r2) == 2
[L1727]  COND FALSE  !(((int)max2) == ((int)id2))
[L1946]              nl2 = 1
[L1947]              mode2 = 0
[L1949]  COND TRUE   !(mode3 == 0)
[L1951]  COND FALSE  !(r3 == 255)
[L1957]              r3 = r3 + 1
[L1958]  COND FALSE  !(!(ep13 == 0))
[L1966]  COND FALSE  !(!(ep23 == 0))
[L1974]  COND TRUE   ((int)r3) == 2
[L1976]  COND FALSE  !(((int)max3) == ((int)id3))
[L2085]              nl3 = 1
[L2086]              mode3 = 0
[L2087]              p12_old = p12_new
[L2088]              p12_new = nomsg
[L2089]              p13_old = p13_new
[L2090]              p13_new = nomsg
[L2091]              p21_old = p21_new
[L2092]              p21_new = nomsg
[L2093]              p23_old = p23_new
[L2094]              p23_new = nomsg
[L2095]              p31_old = p31_new
[L2096]              p31_new = nomsg
[L2097]              p32_old = p32_new
[L2098]              p32_new = nomsg
[L2100]              int check__tmp;
[L2101]  COND TRUE   ((((int)st1) + ((int)st2)) + ((int)st3)) <= 1
[L2103]  COND TRUE   (((int)st1) + ((int)nl1)) <= 1
[L2105]  COND TRUE   (((int)st2) + ((int)nl2)) <= 1
[L2107]  COND TRUE   (((int)st3) + ((int)nl3)) <= 1
[L2109]  COND TRUE   ((int)r1) >= 2
[L2111]  COND FALSE  !(((int)r1) < 2)
[L2117]  COND FALSE  !(((((int)st1) + ((int)st2)) + ((int)st3)) == 1)
[L2123]              check__tmp = 0
[L2124]              __return_2190 = check__tmp
[L2125]              main__c1 = __return_2190
[L1019]              _Bool __tmp_7;
[L1020]              __tmp_7 = main__c1
[L1021]              _Bool assert__arg;
[L1022]              assert__arg = __tmp_7
[L1023]  COND TRUE   assert__arg == 0
[L1025]              __VERIFIER_error()

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