Trace number 3094998

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
MPhaseSAT64 2011-03-03SAT 0.970851 0.972293

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S960198064-030.SATISFIABLE.cnf
MD5SUM06e5d4421198459b1bb719e60182593d
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.004998
Satisfiable
(Un)Satisfiability was proved
Number of variables550
Number of clauses2343
Sum of the clauses size7029
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32343
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.89/0.97	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.89/0.97	c input CNF file=HOME/instance-3094998-1301754295.cnf 
0.89/0.97	c Clause#=2343  var#=550  ratio=4 
0.89/0.97	c Simplified clause#=2343 
0.89/0.97	c XOR_varElimination deleted var#=0 clauses#=2333 
0.89/0.97	c inative var#=0 
0.89/0.97	c free var#=539  
0.89/0.97	c local search on 
0.89/0.97	c A solution found by local search 
0.89/0.97	c unfixed var#=10 var#=550 
0.89/0.97	c verified 
0.89/0.97	c 
0.89/0.97	s SATISFIABLE
0.89/0.97	v 1 2 3 4 5 -6 7 -8 9 10 11 12 13 -14 15 16 17 18 19 -20 21 22 -23 -24 -25 26 27 28 29 30 -31 32 33 34 35 -36 -37 -38 -39 40 -41 -42 43 -44 -45 -46 -47 48 -49 -50 51 -52 -53 54 55 56 57 -58 59 60 -61 -62 -63 -64 65 66 67 68 69 70 -71 -73 74 -75 76 77 78 -79 80 81 -82 83 -84 85 86 -87 88 -89 90 91 -92 -93 -94 -95 96 97 -98 99 -100 -101 102 103 -104 -105 -106 -107 -108 109 -110 -111 112 -113 114 115 116 -117 118 119 -120 -121 122 123 -124 -125 126 127 -128 129 -130 131 132 133 134 -135 136 -137 -138 139 -140 141 142 -143 144 -145 -146 147 148 -149 150 -151 -152 153 154 155 156 157 -158 -159 -160 161 -162 -163 -164 -165 166 -167 -168 -169 -170 171 -172 173 174 -175 -176 -177 178 179 180 181 182 -183 -184 185 186 -187 -188 189 190 191 192 -193 194 195 -196 197 198 -199 200 -201 202 -203 204 205 -206 -207 -208 -209 -210 211 212 -213 -214 -215 -216 -217 -218 -219 220 221 222 -223 224 -225 -226 227 -228 -229 230 -231 232 233 234 235 236 -237 238 239 240 -241 -242 -243 -244 -245 246 247 -248 -249 250 251 -252 -253 -254 -255 256 257 258 259 260 -261 -262 -263 264 265 -266 -267 268 -269 -270 271 -272 -273 -274 275 276 -277 278 -279 280 281 282 283 284 -285 286 287 -288 -289 -290 -291 -292 293 -294 -295 296 297 298 299 300 -301 -302 303 -304 -305 -306 307 -308 -309 -310 -311 312 -313 -314 315 -316 -317 319 -320 321 -322 -323 324 -325 -326 327 328 329 -330 331 -332 -333 -334 -335 336 -337 338 339 -340 -341 -342 343 344 -345 -346 347 348 349 350 -351 352 -353 -354 -355 356 357 358 359 -360 -361 -362 -363 -364 -365 366 -367 -368 -369 -370 371 -372 373 374 375 376 377 378 -379 380 381 -382 383 -384 -385 386 387 -388 -389 -390 -391 392 -393 -394 395 396 397 -398 -399 -400 401 -402 403 -404 405 406 -407 408 409 410 411 -412 -413 414 -415 -416 -417 418 -419 -420 421 -422 423 -424 -425 -426 -427 428 -429 430 431 -432 433 -434 -435 436 437 438 -439 440 441 442 -443 444 445 -446 -447 448 449 -450 451 -452 -453 -454 -455 -456 457 458 459 -460 461 462 463 464 -465 466 467 -468 469 470 -471 -472 -473 474 -475 476 -477 478 479 480 481 -482 -483 -484 -485 486 487 488 -489 490 -491 492 493 -494 -495 -496 497 -498 -499 -500 -501 502 503 -504 505 -506 507 508 -509 -510 511 -512 -513 -514 -515 516 -517 518 -519 520 -521 -522 523 -524 -525 526 527 -528 529 530 531 -532 -533 534 535 536 537 -538 539 -540 -541 -542 543 544 -545 -546 -547 548 -549 550 
0.89/0.97	v 0
0.89/0.97	c 
0.89/0.97	c  Running time=0.969852

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3094998-1301754295/watcher-3094998-1301754295 -o /tmp/evaluation-result-3094998-1301754295/solver-3094998-1301754295 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3094998-1301754295.cnf 

running on 2 cores: 0,2

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 4.06 4.02 3.95 5/187 19250
/proc/meminfo: memFree=21273544/32951132 swapFree=67111528/67111528
[pid=19250] ppid=19248 vsize=3168 CPUtime=0 cores=0,2
/proc/19250/stat : 19250 (MPhaseSAT64) R 19248 19250 18377 0 -1 4202496 377 0 0 0 0 0 0 0 25 0 1 0 287028163 3244032 316 33554432000 134512640 134761588 4289191552 18446744073709551615 134559293 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19250/statm: 792 316 237 61 0 95 0

[startup+0.083147 s]
/proc/loadavg: 4.06 4.02 3.95 5/187 19250
/proc/meminfo: memFree=21273544/32951132 swapFree=67111528/67111528
[pid=19250] ppid=19248 vsize=3844 CPUtime=0.08 cores=0,2
/proc/19250/stat : 19250 (MPhaseSAT64) R 19248 19250 18377 0 -1 4202496 586 0 0 0 8 0 0 0 25 0 1 0 287028163 3936256 525 33554432000 134512640 134761588 4289191552 18446744073709551615 134747171 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19250/statm: 961 525 273 61 0 264 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3844

[startup+0.10113 s]
/proc/loadavg: 4.06 4.02 3.95 5/187 19250
/proc/meminfo: memFree=21273544/32951132 swapFree=67111528/67111528
[pid=19250] ppid=19248 vsize=3844 CPUtime=0.09 cores=0,2
/proc/19250/stat : 19250 (MPhaseSAT64) R 19248 19250 18377 0 -1 4202496 586 0 0 0 9 0 0 0 25 0 1 0 287028163 3936256 525 33554432000 134512640 134761588 4289191552 18446744073709551615 134748632 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19250/statm: 961 525 273 61 0 264 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3844

[startup+0.301101 s]
/proc/loadavg: 4.06 4.02 3.95 5/187 19250
/proc/meminfo: memFree=21273544/32951132 swapFree=67111528/67111528
[pid=19250] ppid=19248 vsize=4832 CPUtime=0.29 cores=0,2
/proc/19250/stat : 19250 (MPhaseSAT64) R 19248 19250 18377 0 -1 4202496 823 0 0 0 29 0 0 0 25 0 1 0 287028163 4947968 762 33554432000 134512640 134761588 4289191552 18446744073709551615 134747168 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19250/statm: 1208 762 274 61 0 511 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4832

[startup+0.701036 s]
/proc/loadavg: 4.06 4.02 3.95 5/187 19250
/proc/meminfo: memFree=21273544/32951132 swapFree=67111528/67111528
[pid=19250] ppid=19248 vsize=5476 CPUtime=0.69 cores=0,2
/proc/19250/stat : 19250 (MPhaseSAT64) R 19248 19250 18377 0 -1 4202496 1064 0 0 0 69 0 0 0 25 0 1 0 287028163 5607424 939 33554432000 134512640 134761588 4289191552 18446744073709551615 134616748 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19250/statm: 1369 939 274 61 0 672 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5476

Solver just ended. Dumping a history of the last processes samples

[startup+0.900994 s]
/proc/loadavg: 4.06 4.02 3.95 5/187 19250
/proc/meminfo: memFree=21273544/32951132 swapFree=67111528/67111528
[pid=19250] ppid=19248 vsize=5732 CPUtime=0.89 cores=0,2
/proc/19250/stat : 19250 (MPhaseSAT64) R 19248 19250 18377 0 -1 4202496 1129 0 0 0 89 0 0 0 25 0 1 0 287028163 5869568 1003 33554432000 134512640 134761588 4289191552 18446744073709551615 134747179 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/19250/statm: 1433 1003 274 61 0 736 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 5732

Child status: 10
Real time (s): 0.972293
CPU time (s): 0.970851
CPU user time (s): 0.968852
CPU system time (s): 0.001999
CPU usage (%): 99.8517
Max. virtual memory (cumulated for all children) (KiB): 5732

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.968852
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1142
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 6
involuntary context switches= 3

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node128 at 2011-04-02 16:24:55
IDJOB=3094998
IDBENCH=82880
IDSOLVER=1521
FILE ID=node128/3094998-1301754295
RUNJOBID= node128-1301748569-18395
PBS_JOBID= 12841009
Free space on /tmp= 71128 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S960198064-030.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094998-1301754295/watcher-3094998-1301754295 -o /tmp/evaluation-result-3094998-1301754295/solver-3094998-1301754295 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3094998-1301754295.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= 06e5d4421198459b1bb719e60182593d
RANDOM SEED=1764406217

node128.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.70
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.852
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21273576 kB
Buffers:        343700 kB
Cached:       10967216 kB
SwapCached:          0 kB
Active:        7905252 kB
Inactive:      3496112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21273576 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             336 kB
Writeback:           0 kB
AnonPages:       90176 kB
Mapped:          17104 kB
Slab:           214008 kB
PageTables:       5156 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   275732 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71128 MiB
End job on node128 at 2011-04-02 16:24:56