Trace number 235476

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 5.45 5.62407

General information on the benchmark

Nametaillard/
os-taillard-10/os-taillard-10-95-3.xml
MD5SUM7e3c51f50cd71b0d303f8f9ddad103ec
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark5.45
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables100
Number of constraints900
Maximum constraint arity2
Maximum domain size548
Number of constraints which are defined in extension0
Number of constraints which are defined in intension900
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/235476-1170107224/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/235476-1170107224/unknown.xml [Mon Jan 29 22:47:04 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/235476-1170107224/unknown.xml /tmp/evaluation/235476-1170107224/sugar24459.csp [Mon Jan 29 22:47:04 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/235476-1170107224/sugar-v0-40.jar -convert /tmp/evaluation/235476-1170107224/unknown.xml /tmp/evaluation/235476-1170107224/sugar24459.csp
0.17	c BEGIN convert /tmp/evaluation/235476-1170107224/unknown.xml
0.58	c END convert (0.413938 seconds)
0.60	c # CONVERT_XML  END : /tmp/evaluation/235476-1170107224/sugar24459.csp 42686 bytes (1 seconds) [Mon Jan 29 22:47:05 2007]
0.60	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.60	
0.60	c # GENERATE_SAT  BEGIN : /tmp/evaluation/235476-1170107224/sugar24459.bcnf [Mon Jan 29 22:47:05 2007]
0.60	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/235476-1170107224/sugar-v0-40.jar -bcnf -map /tmp/evaluation/235476-1170107224/sugar24459.map /tmp/evaluation/235476-1170107224/sugar24459.csp /tmp/evaluation/235476-1170107224/sugar24459.bcnf
0.72	c BEGIN parse /tmp/evaluation/235476-1170107224/sugar24459.csp
1.07	c END parse (0.345001 seconds)
1.07	c BEGIN simplify
1.10	c END simplify (0.026651 seconds)
1.10	c BEGIN encode /tmp/evaluation/235476-1170107224/sugar24459.bcnf
1.97	c END encode (0.869775 seconds)
2.00	c # GENERATE_SAT  END : 51824 variables 868888 clauses 13684560 bytes (1 seconds) [Mon Jan 29 22:47:06 2007]
2.00	c # GENERATE_SAT  CPU : 1.38 = 0.02 + 0.01 + 1.22 + 0.13
2.00	
2.00	c # SOLVE_SAT  BEGIN : /tmp/evaluation/235476-1170107224/sugar24459.bcnf [Mon Jan 29 22:47:06 2007]
2.00	c # CMD : /tmp/evaluation/235476-1170107224/minisat /tmp/evaluation/235476-1170107224/sugar24459.bcnf /tmp/evaluation/235476-1170107224/sugar24459.out
2.55	c ==================================[MINISAT]===================================
2.55	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
2.55	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
2.55	c ==============================================================================
2.55	c |         0 |  868888  2552240 |  289629       0        0     nan |  0.000 % |
3.00	c |       100 |  868888  2552240 |  318591     100     1626    16.3 |  0.000 % |
3.15	c |       250 |  868888  2552240 |  350451     250     3234    12.9 |  0.000 % |
3.23	c |       475 |  868888  2552240 |  385496     475     4723     9.9 |  0.000 % |
3.33	c |       814 |  868888  2552240 |  424045     814     7087     8.7 |  0.000 % |
3.49	c |      1320 |  868888  2552240 |  466450    1320    11097     8.4 |  0.000 % |
3.74	c |      2080 |  868888  2552240 |  513095    2080    16273     7.8 |  0.000 % |
4.11	c |      3220 |  868888  2552240 |  564404    3220    24651     7.7 |  0.000 % |
4.75	c |      4928 |  868889  2552240 |  620845    4927    37775     7.7 |  0.000 % |
5.60	c ==============================================================================
5.60	c restarts              : 9
5.60	c conflicts             : 6982           (2004 /sec)
5.60	c decisions             : 9489           (2724 /sec)
5.60	c propagations          : 5571354        (1599369 /sec)
5.60	c conflict literals     : 51690          (25.98 % deleted)
5.60	c Memory used           : 43.55 MB
5.60	c CPU time              : 3.48347 s
5.60	c 
5.60	c UNSATISFIABLE
5.62	c # SOLVE_SAT  END : UNSATISFIABLE (4 seconds) [Mon Jan 29 22:47:10 2007]
5.62	c # SOLVE_SAT  CPU : 3.58 = 0 + 0 + 3.49 + 0.09
5.62	
5.62	c # RESULT : UNSATISFIABLE
5.62	
5.62	c # OUTPUT_SOL  BEGIN : UNSAT  [Mon Jan 29 22:47:10 2007]
5.62	s UNSATISFIABLE
5.62	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 22:47:10 2007]
5.62	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
5.62	
5.62	c # MAIN  END :  (6 seconds) [Mon Jan 29 22:47:10 2007]
5.62	c # MAIN  CPU : 4.96 = 0.02 + 0.01 + 4.71 + 0.22
5.62

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/node67/watcher-235476-1170107224 -o ROOT/results/node67/solver-235476-1170107224 -C 1800 -M 900 /tmp/evaluation/235476-1170107224/solver /tmp/evaluation/235476-1170107224 /tmp/evaluation/235476-1170107224/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: 2.08 2.04 2.38 5/75 24460
/proc/meminfo: memFree=1878968/2055920 swapFree=4192812/4192956
[pid=24459] ppid=24457 vsize=12128 CPUtime=0
/proc/24459/stat : 24459 (sugar) R 24457 24459 24330 0 -1 4194304 500 0 0 0 0 0 0 0 20 0 1 0 30680056 12419072 219 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 271638264784 0 0 4224 0 0 0 0 17 1 0 0
/proc/24459/statm: 3032 219 165 3 0 132 0

[startup+0.105638 s]
/proc/loadavg: 2.08 2.04 2.38 5/75 24460
/proc/meminfo: memFree=1878968/2055920 swapFree=4192812/4192956
[pid=24459] ppid=24457 vsize=13724 CPUtime=0.03
/proc/24459/stat : 24459 (sugar) S 24457 24459 24330 0 -1 4194304 1112 0 0 0 3 0 0 0 20 0 1 0 30680056 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 271647289442 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24459/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+0.513678 s]
/proc/loadavg: 2.08 2.04 2.38 5/75 24460
/proc/meminfo: memFree=1878968/2055920 swapFree=4192812/4192956
[pid=24459] ppid=24457 vsize=13724 CPUtime=0.03
/proc/24459/stat : 24459 (sugar) S 24457 24459 24330 0 -1 4194304 1121 0 0 0 3 0 0 0 15 0 1 0 30680056 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 271647289442 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24459/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+1.33677 s]
/proc/loadavg: 2.08 2.04 2.38 4/84 24476
/proc/meminfo: memFree=1858928/2055920 swapFree=4192812/4192956
[pid=24459] ppid=24457 vsize=13724 CPUtime=0.03
/proc/24459/stat : 24459 (sugar) S 24457 24459 24330 0 -1 4194304 1188 0 0 0 3 0 0 0 16 0 1 0 30680056 14053376 808 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 271647289442 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24459/statm: 3431 808 370 3 0 531 0
[pid=24461] ppid=24459 vsize=0 CPUtime=0.52
/proc/24461/stat : 24461 (java) Z 24459 24459 24330 0 -1 1036 5119 0 1 0 49 3 0 0 17 0 1 0 30680061 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/24461/statm: 0 0 0 0 0 0 0
[pid=24469] ppid=24459 vsize=807356 CPUtime=0.71
/proc/24469/stat : 24469 (java) R 24459 24459 24330 0 -1 0 6205 0 1 0 66 5 0 0 23 0 8 0 30680116 826732544 5955 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4073819422 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/24469/statm: 201839 5955 1510 14 0 189117 0
[pid=24469/tid=24470] ppid=24459 vsize=807356 CPUtime=0
/proc/24469/task/24470/stat : 24470 (java) S 24459 24459 24330 0 -1 64 273 0 0 0 0 0 0 0 16 0 8 0 30680120 826732544 5955 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=24469/tid=24471] ppid=24459 vsize=807356 CPUtime=0
/proc/24469/task/24471/stat : 24471 (java) S 24459 24459 24330 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 30680120 826732544 5955 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=24469/tid=24472] ppid=24459 vsize=807356 CPUtime=0
/proc/24469/task/24472/stat : 24472 (java) S 24459 24459 24330 0 -1 64 5 0 0 0 0 0 0 0 15 0 8 0 30680120 826732544 5955 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=24469/tid=24473] ppid=24459 vsize=807356 CPUtime=0
/proc/24469/task/24473/stat : 24473 (java) S 24459 24459 24330 0 -1 64 1 0 0 0 0 0 0 0 18 0 8 0 30680123 826732544 5955 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=24469/tid=24474] ppid=24459 vsize=807356 CPUtime=0.15
/proc/24469/task/24474/stat : 24474 (java) S 24459 24459 24330 0 -1 64 413 0 0 0 15 0 0 0 16 0 8 0 30680123 826732544 5955 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=24469/tid=24475] ppid=24459 vsize=807356 CPUtime=0
/proc/24469/task/24475/stat : 24475 (java) S 24459 24459 24330 0 -1 64 2 0 0 0 0 0 0 0 19 0 8 0 30680123 826732544 5955 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=24469/tid=24476] ppid=24459 vsize=807356 CPUtime=0
/proc/24469/task/24476/stat : 24476 (java) S 24459 24459 24330 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 30680123 826732544 5955 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.26
Current children cumulated vsize (KiB) 821080

[startup+2.98994 s]
/proc/loadavg: 2.08 2.04 2.38 3/77 24477
/proc/meminfo: memFree=1840552/2055920 swapFree=4192812/4192956
[pid=24459] ppid=24457 vsize=14784 CPUtime=1.41
/proc/24459/stat : 24459 (sugar) S 24457 24459 24330 0 -1 4194304 1566 6222 0 1 5 1 122 13 15 0 1 0 30680056 15138816 1076 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 271647289442 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/24459/statm: 3696 1076 373 3 0 796 0
[pid=24461] ppid=24459 vsize=0 CPUtime=0.52
/proc/24461/stat : 24461 (java) Z 24459 24459 24330 0 -1 1036 5119 0 1 0 49 3 0 0 17 0 1 0 30680061 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/24461/statm: 0 0 0 0 0 0 0
[pid=24477] ppid=24459 vsize=43792 CPUtime=0.97
/proc/24477/stat : 24477 (minisat) R 24459 24459 24330 0 -1 0 11291 0 0 0 90 7 0 0 25 0 1 0 30680256 44843008 10236 18446744073709551615 134512640 134974460 4294956768 18446744073709551615 134528379 0 0 4096 3 0 0 0 17 1 0 0
/proc/24477/statm: 10948 10236 49 112 0 10832 0
Current children cumulated CPU time (s) 2.9
Current children cumulated vsize (KiB) 58576

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 24459 and gives childrusage.ru_utime.tv_sec=4 childrusage.ru_utime.tv_usec=765275 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=249962
CPU time returned by wait4() is 5.01524
while last known CPU time is 5.45

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

Real time (s): 5.62407
CPU time (s): 5.45
CPU user time (s): 5.2
CPU system time (s): 0.25
CPU usage (%): 96.9049
Max. virtual memory (cumulated for all children) (KiB): 821080

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.76527
system time used= 0.249962
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19379
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= 695
involuntary context switches= 704

runsolver used 0.003999 s user time and 0.026995 s system time

The end

Launcher Data (download as text)

Begin job on node67 on Mon Jan 29 21:47:04 UTC 2007


IDJOB= 235476
IDBENCH= 6771
IDSOLVER= 86
FILE ID= node67/235476-1170107224

PBS_JOBID= 3689915

Free space on /tmp= 66560 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-10/os-taillard-10-95-3.xml
COMMAND LINE= /tmp/evaluation/235476-1170107224/solver /tmp/evaluation/235476-1170107224 /tmp/evaluation/235476-1170107224/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-235476-1170107224 -o ROOT/results/node67/solver-235476-1170107224 -C 1800 -M 900  /tmp/evaluation/235476-1170107224/solver /tmp/evaluation/235476-1170107224 /tmp/evaluation/235476-1170107224/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  7e3c51f50cd71b0d303f8f9ddad103ec

RANDOM SEED= 452534028

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		: 3000.236
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		: 3000.236
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:       1879384 kB
Buffers:         14344 kB
Cached:          65420 kB
SwapCached:          0 kB
Active:          85416 kB
Inactive:        38400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1879384 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1216 kB
Writeback:           0 kB
Mapped:          55016 kB
Slab:            38012 kB
Committed_AS:   459664 kB
PageTables:       1876 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= 66560 MiB



End job on node67 on Mon Jan 29 21:47:10 UTC 2007