Trace number 3094513

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 0.97685 0.978225

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S735137557-045.SATISFIABLE.cnf
MD5SUMdb052c7898d14b578cec80f7488daf9a
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003999
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses2556
Sum of the clauses size7668
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32556
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 MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.89/0.97	c input CNF file=HOME/instance-3094513-1301758179.cnf 
0.89/0.97	c Clause#=2556  var#=600  ratio=4 
0.89/0.97	c Simplified clause#=2556 
0.89/0.97	c XOR_varElimination deleted var#=0 clauses#=2541 
0.89/0.97	c inative var#=0 
0.89/0.97	c free var#=585  
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#=13 var#=600 
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 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 -226 -227 -228 -229 230 -231 -232 -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 -316 317 318 -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 -548 549 550 551 -552 553 -554 -555 -556 557 -558 559 560 -561 562 -563 564 565 -566 -567 -568 -569 570 -571 572 -573 -574 -575 -576 -577 -578 -579 -580 -581 582 -583 584 -585 -586 -587 588 -589 -590 -591 -592 -593 -594 595 -597 -598 599 -600 
0.89/0.97	v 0
0.89/0.97	c 
0.89/0.97	c  Running time=0.975851

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-3094513-1301758179/watcher-3094513-1301758179 -o /tmp/evaluation-result-3094513-1301758179/solver-3094513-1301758179 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094513-1301758179.cnf 

running on 2 cores: 5,7

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: 3.94 4.00 3.90 5/189 4848
/proc/meminfo: memFree=23542428/32951124 swapFree=67102208/67111528
[pid=4848] ppid=4846 vsize=3152 CPUtime=0 cores=5,7
/proc/4848/stat : 4848 (MPhaseSAT) R 4846 4848 4397 0 -1 4202496 381 0 0 0 0 0 0 0 24 0 1 0 366048598 3227648 320 33554432000 134512640 134731564 4291439520 18446744073709551615 134578142 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/4848/statm: 788 320 237 54 0 98 0

[startup+0.0408399 s]
/proc/loadavg: 3.94 4.00 3.90 5/189 4848
/proc/meminfo: memFree=23542428/32951124 swapFree=67102208/67111528
[pid=4848] ppid=4846 vsize=3600 CPUtime=0.03 cores=5,7
/proc/4848/stat : 4848 (MPhaseSAT) R 4846 4848 4397 0 -1 4202496 512 0 0 0 3 0 0 0 24 0 1 0 366048598 3686400 451 33554432000 134512640 134731564 4291439520 18446744073709551615 134668756 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/4848/statm: 900 451 269 54 0 210 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3600

[startup+0.100829 s]
/proc/loadavg: 3.94 4.00 3.90 5/189 4848
/proc/meminfo: memFree=23542428/32951124 swapFree=67102208/67111528
[pid=4848] ppid=4846 vsize=3732 CPUtime=0.09 cores=5,7
/proc/4848/stat : 4848 (MPhaseSAT) R 4846 4848 4397 0 -1 4202496 554 0 0 0 9 0 0 0 24 0 1 0 366048598 3821568 493 33554432000 134512640 134731564 4291439520 18446744073709551615 134659306 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/4848/statm: 933 493 269 54 0 243 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3732

[startup+0.300804 s]
/proc/loadavg: 3.94 4.00 3.90 5/189 4848
/proc/meminfo: memFree=23542428/32951124 swapFree=67102208/67111528
[pid=4848] ppid=4846 vsize=3996 CPUtime=0.29 cores=5,7
/proc/4848/stat : 4848 (MPhaseSAT) R 4846 4848 4397 0 -1 4202496 605 0 0 0 29 0 0 0 25 0 1 0 366048598 4091904 544 33554432000 134512640 134731564 4291439520 18446744073709551615 134723205 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/4848/statm: 999 544 269 54 0 309 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3996

[startup+0.700722 s]
/proc/loadavg: 3.94 4.00 3.90 5/189 4848
/proc/meminfo: memFree=23542428/32951124 swapFree=67102208/67111528
[pid=4848] ppid=4846 vsize=4260 CPUtime=0.69 cores=5,7
/proc/4848/stat : 4848 (MPhaseSAT) R 4846 4848 4397 0 -1 4202496 689 0 0 0 69 0 0 0 25 0 1 0 366048598 4362240 628 33554432000 134512640 134731564 4291439520 18446744073709551615 134719975 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/4848/statm: 1065 628 269 54 0 375 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4260

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

[startup+0.90069 s]
/proc/loadavg: 3.94 4.00 3.90 5/189 4848
/proc/meminfo: memFree=23542428/32951124 swapFree=67102208/67111528
[pid=4848] ppid=4846 vsize=4392 CPUtime=0.89 cores=5,7
/proc/4848/stat : 4848 (MPhaseSAT) R 4846 4848 4397 0 -1 4202496 704 0 0 0 89 0 0 0 25 0 1 0 366048598 4497408 643 33554432000 134512640 134731564 4291439520 18446744073709551615 134659395 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/4848/statm: 1098 643 269 54 0 408 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4392

Child status: 10
Real time (s): 0.978225
CPU time (s): 0.97685
CPU user time (s): 0.974851
CPU system time (s): 0.001999
CPU usage (%): 99.8594
Max. virtual memory (cumulated for all children) (KiB): 4392

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.974851
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= 758
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 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node119 at 2011-04-02 17:29:39
IDJOB=3094513
IDBENCH=82995
IDSOLVER=1520
FILE ID=node119/3094513-1301758179
RUNJOBID= node119-1301756812-4418
PBS_JOBID= 12841060
Free space on /tmp= 71232 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S735137557-045.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094513-1301758179/watcher-3094513-1301758179 -o /tmp/evaluation-result-3094513-1301758179/solver-3094513-1301758179 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094513-1301758179.cnf

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

MD5SUM BENCH= db052c7898d14b578cec80f7488daf9a
RANDOM SEED=1885297622

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:      23542568 kB
Buffers:        297680 kB
Cached:        8768876 kB
SwapCached:       5376 kB
Active:        4548128 kB
Inactive:      4600628 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23542568 kB
SwapTotal:    67111528 kB
SwapFree:     67102208 kB
Dirty:              48 kB
Writeback:           0 kB
AnonPages:       80496 kB
Mapped:          16800 kB
Slab:           196820 kB
PageTables:       5312 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   269960 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 17:29:40