Trace number 216483

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
sugar 0.40UNSAT 4 4.17832

General information on the benchmark

NamepseudoSeries/chnl/
chnl-10-11.xml
MD5SUM909bddf60f447d4fe6ae1972473e26c0
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.20866
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables220
Number of constraints42
Maximum constraint arity11
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension42
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/216483-1170100703/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/216483-1170100703/unknown.xml [Mon Jan 29 20:58:23 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/216483-1170100703/unknown.xml /tmp/evaluation/216483-1170100703/sugar26474.csp [Mon Jan 29 20:58:23 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/216483-1170100703/sugar-v0-40.jar -convert /tmp/evaluation/216483-1170100703/unknown.xml /tmp/evaluation/216483-1170100703/sugar26474.csp
0.17	c BEGIN convert /tmp/evaluation/216483-1170100703/unknown.xml
0.36	c END convert (0.189399 seconds)
0.39	c # CONVERT_XML  END : /tmp/evaluation/216483-1170100703/sugar26474.csp 9098 bytes (1 seconds) [Mon Jan 29 20:58:24 2007]
0.39	c # CONVERT_XML  CPU : 0.3 = 0 + 0 + 0.27 + 0.03
0.39	
0.39	c # GENERATE_SAT  BEGIN : /tmp/evaluation/216483-1170100703/sugar26474.bcnf [Mon Jan 29 20:58:24 2007]
0.39	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/216483-1170100703/sugar-v0-40.jar -bcnf -map /tmp/evaluation/216483-1170100703/sugar26474.map /tmp/evaluation/216483-1170100703/sugar26474.csp /tmp/evaluation/216483-1170100703/sugar26474.bcnf
0.51	c BEGIN parse /tmp/evaluation/216483-1170100703/sugar26474.csp
0.81	c END parse (0.301257 seconds)
0.81	c BEGIN simplify
0.81	c END simplify (0.002467 seconds)
0.81	c BEGIN encode /tmp/evaluation/216483-1170100703/sugar26474.bcnf
0.86	c END encode (0.047846 seconds)
0.89	c # GENERATE_SAT  END : 1036 variables 3448 clauses 45936 bytes (0 seconds) [Mon Jan 29 20:58:24 2007]
0.89	c # GENERATE_SAT  CPU : 0.01 = 0.01 + 0 + 0 + 0
0.89	
0.89	c # SOLVE_SAT  BEGIN : /tmp/evaluation/216483-1170100703/sugar26474.bcnf [Mon Jan 29 20:58:24 2007]
0.89	c # CMD : /tmp/evaluation/216483-1170100703/minisat /tmp/evaluation/216483-1170100703/sugar26474.bcnf /tmp/evaluation/216483-1170100703/sugar26474.out
0.89	c ==================================[MINISAT]===================================
0.89	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
0.89	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
0.89	c ==============================================================================
0.89	c |         0 |    2388     6510 |     796       0        0     nan |  0.000 % |
0.90	c |       100 |    2388     6510 |     875     100     1429    14.3 | 25.100 % |
0.90	c |       251 |    2388     6510 |     963     251     4433    17.7 | 25.100 % |
0.91	c |       477 |    2388     6510 |    1059     477    10150    21.3 | 25.099 % |
0.92	c |       814 |    2388     6510 |    1165     814    17815    21.9 | 25.099 % |
0.95	c |      1321 |    2388     6510 |    1281    1321    30524    23.1 | 25.097 % |
0.98	c |      2080 |    2388     6510 |    1410    1215    23653    19.5 | 25.097 % |
1.04	c |      3219 |    2388     6510 |    1551    1436    27265    19.0 | 25.098 % |
1.13	c |      4927 |    2388     6510 |    1706    1203    21151    17.6 | 25.099 % |
1.27	c |      7489 |    2388     6510 |    1876    1644    28230    17.2 | 25.097 % |
1.50	c |     11335 |    2388     6510 |    2064    2066    40307    19.5 | 25.098 % |
1.83	c |     17102 |    2388     6510 |    2271    1710    31115    18.2 | 25.102 % |
2.32	c |     25751 |    2379     6498 |    2498    2359    38829    16.5 | 25.387 % |
3.09	c |     38725 |    2337     6450 |    2748    2291    47366    20.7 | 26.740 % |
4.17	c ==============================================================================
4.17	c restarts              : 14
4.17	c conflicts             : 55890          (17147 /sec)
4.17	c decisions             : 61842          (18973 /sec)
4.17	c propagations          : 3671364        (1126357 /sec)
4.17	c conflict literals     : 1083150        (20.43 % deleted)
4.17	c Memory used           : 2.39 MB
4.17	c CPU time              : 3.2595 s
4.17	c 
4.17	c UNSATISFIABLE
4.17	c # SOLVE_SAT  END : UNSATISFIABLE (4 seconds) [Mon Jan 29 20:58:28 2007]
4.17	c # SOLVE_SAT  CPU : 3.26 = 0 + 0 + 3.26 + 0
4.17	
4.17	c # RESULT : UNSATISFIABLE
4.17	
4.17	c # OUTPUT_SOL  BEGIN : UNSAT  [Mon Jan 29 20:58:28 2007]
4.17	s UNSATISFIABLE
4.17	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 20:58:28 2007]
4.17	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
4.17	
4.17	c # MAIN  END :  (5 seconds) [Mon Jan 29 20:58:28 2007]
4.17	c # MAIN  CPU : 3.57 = 0.01 + 0 + 3.53 + 0.03
4.17

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node16/watcher-216483-1170100703 -o ROOT/results/node16/solver-216483-1170100703 -C 1800 -M 900 /tmp/evaluation/216483-1170100703/solver /tmp/evaluation/216483-1170100703 /tmp/evaluation/216483-1170100703/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 2.02 2.50 2.79 5/87 26475
/proc/meminfo: memFree=1851824/2055920 swapFree=4192812/4192956
[pid=26474] ppid=26472 vsize=18540 CPUtime=0
/proc/26474/stat : 26474 (runsolver) R 26472 26474 25064 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 30024671 18984960 279 18446744073709551615 4194304 4267372 548682069040 18446744073709551615 231962373415 0 0 4096 24578 0 0 0 17 1 0 0
/proc/26474/statm: 4635 279 244 17 0 2626 0

[startup+0.108459 s]
/proc/loadavg: 2.02 2.50 2.79 5/87 26475
/proc/meminfo: memFree=1851824/2055920 swapFree=4192812/4192956
[pid=26474] ppid=26472 vsize=13724 CPUtime=0.04
/proc/26474/stat : 26474 (sugar) S 26472 26474 25064 0 -1 4194304 1112 0 0 0 3 1 0 0 18 0 1 0 30024671 14053376 805 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 231971270754 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/26474/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.516408 s]
/proc/loadavg: 2.02 2.50 2.79 5/87 26475
/proc/meminfo: memFree=1851824/2055920 swapFree=4192812/4192956
[pid=26474] ppid=26472 vsize=13724 CPUtime=0.34
/proc/26474/stat : 26474 (sugar) S 26472 26474 25064 0 -1 4194304 1190 3678 0 1 3 1 27 3 15 0 1 0 30024671 14053376 809 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 231971270754 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/26474/statm: 3431 809 371 3 0 531 0
Current children cumulated CPU time (s) 0.34
Current children cumulated vsize (KiB) 13724

[startup+1.33731 s]
/proc/loadavg: 2.02 2.50 2.79 4/90 26492
/proc/meminfo: memFree=1848984/2055920 swapFree=4192812/4192956
[pid=26474] ppid=26472 vsize=14120 CPUtime=0.35
/proc/26474/stat : 26474 (sugar) S 26472 26474 25064 0 -1 4194304 1404 3678 0 1 4 1 27 3 15 0 1 0 30024671 14458880 919 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 231971270754 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/26474/statm: 3530 919 373 3 0 630 0
[pid=26484] ppid=26474 vsize=0 CPUtime=0.46
/proc/26484/stat : 26484 (java) Z 26474 26474 25064 0 -1 1036 6096 0 1 0 43 3 0 0 17 0 1 0 30024711 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/26484/statm: 0 0 0 0 0 0 0
[pid=26492] ppid=26474 vsize=2048 CPUtime=0.43
/proc/26492/stat : 26492 (minisat) R 26474 26474 25064 0 -1 0 196 0 0 0 43 0 0 0 20 0 1 0 30024761 2097152 169 18446744073709551615 134512640 134974460 4294956752 18446744073709551615 134525952 0 0 4096 3 0 0 0 17 1 0 0
/proc/26492/statm: 512 169 51 112 0 396 0
Current children cumulated CPU time (s) 1.24
Current children cumulated vsize (KiB) 16168

[startup+2.97413 s]
/proc/loadavg: 2.02 2.49 2.78 3/89 26492
/proc/meminfo: memFree=1848736/2055920 swapFree=4192812/4192956
[pid=26474] ppid=26472 vsize=14120 CPUtime=0.35
/proc/26474/stat : 26474 (sugar) S 26472 26474 25064 0 -1 4194304 1404 3678 0 1 4 1 27 3 15 0 1 0 30024671 14458880 919 18446744073709551615 4194304 4206940 548682069216 18446744073709551615 231971270754 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/26474/statm: 3530 919 373 3 0 630 0
[pid=26484] ppid=26474 vsize=0 CPUtime=0.46
/proc/26484/stat : 26484 (java) Z 26474 26474 25064 0 -1 1036 6096 0 1 0 43 3 0 0 17 0 1 0 30024711 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/26484/statm: 0 0 0 0 0 0 0
[pid=26492] ppid=26474 vsize=2312 CPUtime=2.06
/proc/26492/stat : 26492 (minisat) R 26474 26474 25064 0 -1 0 267 0 0 0 206 0 0 0 25 0 1 0 30024761 2367488 240 18446744073709551615 134512640 134974460 4294956752 18446744073709551615 134528545 0 0 4096 3 0 0 0 17 1 0 0
/proc/26492/statm: 578 240 51 112 0 462 0
Current children cumulated CPU time (s) 2.87
Current children cumulated vsize (KiB) 16432

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 26474 and gives childrusage.ru_utime.tv_sec=3 childrusage.ru_utime.tv_usec=579455 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=51992
CPU time returned by wait4() is 3.63145
while last known CPU time is 4

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 4.17832
CPU time (s): 4
CPU user time (s): 3.93
CPU system time (s): 0.07
CPU usage (%): 95.7323
Max. virtual memory (cumulated for all children) (KiB): 16560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.57945
system time used= 0.051992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5479
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 383
involuntary context switches= 430

runsolver used 0.004999 s user time and 0.020996 s system time

The end

Launcher Data (download as text)

Begin job on node16 on Mon Jan 29 19:58:23 UTC 2007


IDJOB= 216483
IDBENCH= 5081
IDSOLVER= 86
FILE ID= node16/216483-1170100703

PBS_JOBID= 3689457

Free space on /tmp= 66550 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/pseudoSeries/chnl/chnl-10-11.xml
COMMAND LINE= /tmp/evaluation/216483-1170100703/solver /tmp/evaluation/216483-1170100703 /tmp/evaluation/216483-1170100703/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node16/watcher-216483-1170100703 -o ROOT/results/node16/solver-216483-1170100703 -C 1800 -M 900  /tmp/evaluation/216483-1170100703/solver /tmp/evaluation/216483-1170100703 /tmp/evaluation/216483-1170100703/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  909bddf60f447d4fe6ae1972473e26c0

RANDOM SEED= 687396036

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.281
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.281
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1852304 kB
Buffers:         30832 kB
Cached:          49952 kB
SwapCached:          0 kB
Active:         111916 kB
Inactive:        38068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1852304 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:             956 kB
Writeback:           0 kB
Mapped:          88964 kB
Slab:            38664 kB
Committed_AS:   395332 kB
PageTables:       2136 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66550 MiB



End job on node16 on Mon Jan 29 19:58:28 UTC 2007