Trace number 233967

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 0.40SAT 1.33 1.90082

General information on the benchmark

Nametaillard/os-taillard-7/
os-taillard-7-100-7.xml
MD5SUM78713f18bd9336e8c0dd2cae855aee4a
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.378942
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size424
Number of constraints which are defined in extension0
Number of constraints which are defined in intension294
Global constraints used (with number of constraints)

Solver Data (download as text)

0.04	c # Sugar v0-40 (/tmp/evaluation/233967-1170106866/sugar-v0-40.jar)
0.04	
0.04	c # MAIN  BEGIN : /tmp/evaluation/233967-1170106866/unknown.xml [Mon Jan 29 22:41:08 2007]
0.04	c # CONVERT_XML  BEGIN : /tmp/evaluation/233967-1170106866/unknown.xml /tmp/evaluation/233967-1170106866/sugar18531.csp [Mon Jan 29 22:41:08 2007]
0.04	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/233967-1170106866/sugar-v0-40.jar -convert /tmp/evaluation/233967-1170106866/unknown.xml /tmp/evaluation/233967-1170106866/sugar18531.csp
0.17	c BEGIN convert /tmp/evaluation/233967-1170106866/unknown.xml
0.45	c END convert (0.284501 seconds)
0.49	c # CONVERT_XML  END : /tmp/evaluation/233967-1170106866/sugar18531.csp 14108 bytes (0 seconds) [Mon Jan 29 22:41:08 2007]
0.49	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.49	
0.49	c # GENERATE_SAT  BEGIN : /tmp/evaluation/233967-1170106866/sugar18531.bcnf [Mon Jan 29 22:41:08 2007]
0.49	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/233967-1170106866/sugar-v0-40.jar -bcnf -map /tmp/evaluation/233967-1170106866/sugar18531.map /tmp/evaluation/233967-1170106866/sugar18531.csp /tmp/evaluation/233967-1170106866/sugar18531.bcnf
0.61	c BEGIN parse /tmp/evaluation/233967-1170106866/sugar18531.csp
0.83	c END parse (0.22107 seconds)
0.83	c BEGIN simplify
0.85	c END simplify (0.01188 seconds)
0.85	c BEGIN encode /tmp/evaluation/233967-1170106866/sugar18531.bcnf
1.09	c END encode (0.238586 seconds)
1.10	c # GENERATE_SAT  END : 18865 variables 209034 clauses 3265776 bytes (1 seconds) [Mon Jan 29 22:41:09 2007]
1.10	c # GENERATE_SAT  CPU : 0.59 = 0.01 + 0 + 0.53 + 0.05
1.10	
1.10	c # SOLVE_SAT  BEGIN : /tmp/evaluation/233967-1170106866/sugar18531.bcnf [Mon Jan 29 22:41:09 2007]
1.10	c # CMD : /tmp/evaluation/233967-1170106866/minisat /tmp/evaluation/233967-1170106866/sugar18531.bcnf /tmp/evaluation/233967-1170106866/sugar18531.out
1.23	c ==================================[MINISAT]===================================
1.23	c | Conflicts |     ORIGINAL     |              LEARNT              | Progress |
1.23	c |           | Clauses Literals |   Limit Clauses Literals  Lit/Cl |          |
1.23	c ==============================================================================
1.23	c |         0 |  209034   607404 |   69678       0        0     nan |  0.000 % |
1.37	c |       100 |  209034   607404 |   76645     100     1280    12.8 |  0.000 % |
1.40	c ==============================================================================
1.40	c restarts              : 2
1.40	c conflicts             : 114            (406 /sec)
1.40	c decisions             : 289            (1029 /sec)
1.40	c propagations          : 277165         (986503 /sec)
1.40	c conflict literals     : 1371           (26.21 % deleted)
1.40	c Memory used           : 12.21 MB
1.40	c CPU time              : 0.280957 s
1.40	c 
1.40	c SATISFIABLE
1.42	c # SOLVE_SAT  END : SATISFIABLE (0 seconds) [Mon Jan 29 22:41:09 2007]
1.42	c # SOLVE_SAT  CPU : 0.31 = 0 + 0 + 0.29 + 0.02
1.42	
1.42	c # RESULT : SATISFIABLE
1.42	
1.42	c # OUTPUT_SOL  BEGIN : SAT  [Mon Jan 29 22:41:09 2007]
1.54	c BEGIN read SAT output /tmp/evaluation/233967-1170106866/sugar18531.out
1.59	c END read SAT output (0.046667 seconds)
1.59	c BEGIN write solution /tmp/evaluation/233967-1170106866/sugar18531.sol
1.64	c END write solution (0.0582 seconds)
1.66	s SATISFIABLE
1.66	v 385 404 111 246 19 288 148 23 315 376 273 219 121 60 282 230 337 419 8 125 84 144 27 273 177 65 341 0 370 34 95 167 17 231 312 6 201 387 222 406 69 334 111 340 31 314 231 4 169
1.66	c # OUTPUT_SOL  END :  (0 seconds) [Mon Jan 29 22:41:09 2007]
1.66	c # OUTPUT_SOL  CPU : 0 = 0 + 0 + 0 + 0
1.66	
1.66	c # MAIN  END :  (1 seconds) [Mon Jan 29 22:41:09 2007]
1.66	c # MAIN  CPU : 0.9 = 0.01 + 0 + 0.82 + 0.07
1.66

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node56/watcher-233967-1170106866 -o ROOT/results/node56/solver-233967-1170106866 -C 1800 -M 900 /tmp/evaluation/233967-1170106866/solver /tmp/evaluation/233967-1170106866 /tmp/evaluation/233967-1170106866/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: 2.17 3.51 4.63 5/74 18532
/proc/meminfo: memFree=1549008/2055920 swapFree=4183548/4192956
[pid=18531] ppid=18529 vsize=12268 CPUtime=0
/proc/18531/stat : 18531 (sugar) R 18529 18531 18330 0 -1 4194304 604 0 0 0 0 0 0 0 18 0 1 0 30643283 12562432 323 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 253320626160 0 0 4224 0 0 0 0 17 1 0 0
/proc/18531/statm: 3067 323 244 3 0 167 0

[startup+0.109806 s]
/proc/loadavg: 2.17 3.51 4.63 5/74 18532
/proc/meminfo: memFree=1549008/2055920 swapFree=4183548/4192956
[pid=18531] ppid=18529 vsize=13724 CPUtime=0.03
/proc/18531/stat : 18531 (sugar) S 18529 18531 18330 0 -1 4194304 1112 0 0 0 3 0 0 0 18 0 1 0 30643283 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 253316083810 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18531/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+0.517847 s]
/proc/loadavg: 2.17 3.51 4.63 5/74 18532
/proc/meminfo: memFree=1549008/2055920 swapFree=4183548/4192956
[pid=18531] ppid=18529 vsize=13724 CPUtime=0.03
/proc/18531/stat : 18531 (sugar) S 18529 18531 18330 0 -1 4194304 1178 0 0 0 3 0 0 0 16 0 1 0 30643283 14053376 808 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 253316083810 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18531/statm: 3431 808 370 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+1.34193 s]
/proc/loadavg: 2.17 3.51 4.63 3/76 18549
/proc/meminfo: memFree=1538304/2055920 swapFree=4183548/4192956
[pid=18531] ppid=18529 vsize=14124 CPUtime=0.62
/proc/18531/stat : 18531 (sugar) S 18529 18531 18330 0 -1 4194304 1394 5225 0 1 4 0 53 5 15 0 1 0 30643283 14462976 906 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 253316083810 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18531/statm: 3531 906 373 3 0 631 0
[pid=18533] ppid=18531 vsize=0 CPUtime=0.39
/proc/18533/stat : 18533 (java) Z 18531 18531 18330 0 -1 1036 4049 0 1 0 36 3 0 0 17 0 1 0 30643288 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/18533/statm: 0 0 0 0 0 0 0
[pid=18549] ppid=18531 vsize=12044 CPUtime=0.22
/proc/18549/stat : 18549 (minisat) R 18531 18531 18330 0 -1 0 3418 0 0 0 21 1 0 0 19 0 1 0 30643393 12333056 2605 18446744073709551615 134512640 134974460 4294956768 18446744073709551615 134528758 0 0 4096 3 0 0 0 17 1 0 0
/proc/18549/statm: 3011 2605 49 112 0 2895 0
Current children cumulated CPU time (s) 1.23
Current children cumulated vsize (KiB) 26168

Child status: 0

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 18531 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=872867 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=94985
CPU time returned by wait4() is 0.967852
while last known CPU time is 1.33

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

Real time (s): 1.90082
CPU time (s): 1.33
CPU user time (s): 1.22
CPU system time (s): 0.11
CPU usage (%): 69.9696
Max. virtual memory (cumulated for all children) (KiB): 26168

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.872867
system time used= 0.094985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10301
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= 540
involuntary context switches= 470

runsolver used 0.003999 s user time and 0.011998 s system time

The end

Launcher Data (download as text)

Begin job on node56 on Mon Jan 29 21:41:06 UTC 2007


IDJOB= 233967
IDBENCH= 6649
IDSOLVER= 86
FILE ID= node56/233967-1170106866

PBS_JOBID= 3689898

Free space on /tmp= 66487 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-7/os-taillard-7-100-7.xml
COMMAND LINE= /tmp/evaluation/233967-1170106866/solver /tmp/evaluation/233967-1170106866 /tmp/evaluation/233967-1170106866/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node56/watcher-233967-1170106866 -o ROOT/results/node56/solver-233967-1170106866 -C 1800 -M 900  /tmp/evaluation/233967-1170106866/solver /tmp/evaluation/233967-1170106866 /tmp/evaluation/233967-1170106866/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  78713f18bd9336e8c0dd2cae855aee4a

RANDOM SEED= 28122265

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		: 3000.231
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		: 3000.231
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:       1549616 kB
Buffers:         54956 kB
Cached:         116504 kB
SwapCached:       3708 kB
Active:         398376 kB
Inactive:        54740 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1549616 kB
SwapTotal:     4192956 kB
SwapFree:      4183548 kB
Dirty:           70132 kB
Writeback:           0 kB
Mapped:         258360 kB
Slab:            37904 kB
Committed_AS:   457288 kB
PageTables:       2356 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= 66487 MiB



End job on node56 on Mon Jan 29 21:41:09 UTC 2007