Trace number 3094601

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
MPhaseSAT 2011-02-15SAT 0.909861 0.911736

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S107514131-038.SATISFIABLE.cnf
MD5SUM82989c7f536fd5815485b15c37159486
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005999
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 

0.89/0.91	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.89/0.91	c input CNF file=HOME/instance-3094601-1301760094.cnf 
0.89/0.91	c Clause#=2343  var#=550  ratio=4 
0.89/0.91	c Simplified clause#=2343 
0.89/0.91	c XOR_varElimination deleted var#=1 clauses#=2333 
0.89/0.91	c inative var#=0 
0.89/0.91	c free var#=534  
0.89/0.91	c local search on 
0.89/0.91	c A solution found by local search 
0.89/0.91	c unfixed var#=14 var#=550 
0.89/0.91	c verified 
0.89/0.91	c 
0.89/0.91	s SATISFIABLE
0.89/0.91	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 72 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 -225 227 -228 -229 230 -231 232 233 -234 235 236 -237 238 239 240 -241 -242 243 -244 -245 -246 247 -248 249 -250 -251 -252 254 -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 -318 -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 
0.89/0.91	v 0
0.89/0.91	c 
0.89/0.91	c  Running time=0.908862

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-3094601-1301760094/watcher-3094601-1301760094 -o /tmp/evaluation-result-3094601-1301760094/solver-3094601-1301760094 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094601-1301760094.cnf 

running on 2 cores: 1,3

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: 4.03 4.02 3.96 5/189 5293
/proc/meminfo: memFree=23537920/32951124 swapFree=67102208/67111528
[pid=5293] ppid=5291 vsize=3140 CPUtime=0 cores=1,3
/proc/5293/stat : 5293 (MPhaseSAT) R 5291 5293 4397 0 -1 4202496 378 0 0 0 0 0 0 0 25 0 1 0 366240098 3215360 316 33554432000 134512640 134731564 4292375680 18446744073709551615 134559213 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/5293/statm: 785 316 237 54 0 95 0

[startup+0.0372109 s]
/proc/loadavg: 4.03 4.02 3.96 5/189 5293
/proc/meminfo: memFree=23537920/32951124 swapFree=67102208/67111528
[pid=5293] ppid=5291 vsize=3576 CPUtime=0.03 cores=1,3
/proc/5293/stat : 5293 (MPhaseSAT) R 5291 5293 4397 0 -1 4202496 503 0 0 0 3 0 0 0 25 0 1 0 366240098 3661824 441 33554432000 134512640 134731564 4292375680 18446744073709551615 134659494 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/5293/statm: 894 441 268 54 0 204 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3576

[startup+0.100201 s]
/proc/loadavg: 4.03 4.02 3.96 5/189 5293
/proc/meminfo: memFree=23537920/32951124 swapFree=67102208/67111528
[pid=5293] ppid=5291 vsize=3708 CPUtime=0.09 cores=1,3
/proc/5293/stat : 5293 (MPhaseSAT) R 5291 5293 4397 0 -1 4202496 547 0 0 0 9 0 0 0 25 0 1 0 366240098 3796992 485 33554432000 134512640 134731564 4292375680 18446744073709551615 134659320 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/5293/statm: 927 485 268 54 0 237 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3708

[startup+0.300177 s]
/proc/loadavg: 4.03 4.02 3.96 5/189 5293
/proc/meminfo: memFree=23537920/32951124 swapFree=67102208/67111528
[pid=5293] ppid=5291 vsize=3972 CPUtime=0.29 cores=1,3
/proc/5293/stat : 5293 (MPhaseSAT) R 5291 5293 4397 0 -1 4202496 597 0 0 0 29 0 0 0 25 0 1 0 366240098 4067328 535 33554432000 134512640 134731564 4292375680 18446744073709551615 134720157 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/5293/statm: 993 535 268 54 0 303 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3972

[startup+0.700094 s]
/proc/loadavg: 4.03 4.02 3.96 5/189 5293
/proc/meminfo: memFree=23537920/32951124 swapFree=67102208/67111528
[pid=5293] ppid=5291 vsize=4232 CPUtime=0.69 cores=1,3
/proc/5293/stat : 5293 (MPhaseSAT) R 5291 5293 4397 0 -1 4202496 681 0 0 0 69 0 0 0 25 0 1 0 366240098 4333568 619 33554432000 134512640 134731564 4292375680 18446744073709551615 134720157 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/5293/statm: 1058 619 268 54 0 368 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4232

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

[startup+0.901062 s]
/proc/loadavg: 4.03 4.02 3.96 5/189 5293
/proc/meminfo: memFree=23537920/32951124 swapFree=67102208/67111528
[pid=5293] ppid=5291 vsize=4496 CPUtime=0.89 cores=1,3
/proc/5293/stat : 5293 (MPhaseSAT) R 5291 5293 4397 0 -1 4202496 727 0 0 0 89 0 0 0 25 0 1 0 366240098 4603904 665 33554432000 134512640 134731564 4292375680 18446744073709551615 134603365 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/5293/statm: 1124 665 271 54 0 434 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4496

Child status: 10
Real time (s): 0.911736
CPU time (s): 0.909861
CPU user time (s): 0.909861
CPU system time (s): 0
CPU usage (%): 99.7944
Max. virtual memory (cumulated for all children) (KiB): 4496

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.909861
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 741
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= 2

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node119 at 2011-04-02 18:01:34
IDJOB=3094601
IDBENCH=83083
IDSOLVER=1520
FILE ID=node119/3094601-1301760094
RUNJOBID= node119-1301756812-4417
PBS_JOBID= 12841060
Free space on /tmp= 71232 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S107514131-038.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094601-1301760094/watcher-3094601-1301760094 -o /tmp/evaluation-result-3094601-1301760094/solver-3094601-1301760094 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094601-1301760094.cnf

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

MD5SUM BENCH= 82989c7f536fd5815485b15c37159486
RANDOM SEED=1423654663

node119.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		: 2666.815
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	: 5333.63
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		: 2666.815
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	: 5332.83
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		: 2666.815
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	: 5332.74
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		: 2666.815
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	: 5332.83
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		: 2666.815
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	: 5332.67
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		: 2666.815
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	: 5332.83
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		: 2666.815
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	: 5332.74
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		: 2666.815
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      23537952 kB
Buffers:        298256 kB
Cached:        8769556 kB
SwapCached:       5376 kB
Active:        4552224 kB
Inactive:      4600812 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23537952 kB
SwapTotal:    67111528 kB
SwapFree:     67102208 kB
Dirty:             484 kB
Writeback:           0 kB
AnonPages:       83120 kB
Mapped:          16776 kB
Slab:           197116 kB
PageTables:       5316 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   277988 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71232 MiB
End job on node119 at 2011-04-02 18:01:35