Trace number 3095056

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 0.947855 0.949493

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S727005963-093.SATISFIABLE.cnf
MD5SUM91e4bda9499071fffccca1352d82691f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.017996
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 

0.89/0.94	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.89/0.94	c input CNF file=HOME/instance-3095056-1301757023.cnf 
0.89/0.94	c Clause#=2556  var#=600  ratio=4 
0.89/0.94	c Simplified clause#=2556 
0.89/0.94	c XOR_varElimination deleted var#=0 clauses#=2524 
0.89/0.94	c inative var#=0 
0.89/0.94	c free var#=582  
0.89/0.94	c local search on 
0.89/0.94	c A solution found by local search 
0.89/0.94	c unfixed var#=14 var#=600 
0.89/0.94	c verified 
0.89/0.94	c 
0.89/0.94	s SATISFIABLE
0.89/0.94	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 -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 -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 
0.89/0.94	v 0
0.89/0.94	c 
0.89/0.94	c  Running time=0.946856

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-3095056-1301757023/watcher-3095056-1301757023 -o /tmp/evaluation-result-3095056-1301757023/solver-3095056-1301757023 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095056-1301757023.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: 1.28 2.03 2.99 5/189 15046
/proc/meminfo: memFree=22476156/32951124 swapFree=67111528/67111528
[pid=15046] ppid=15044 vsize=3180 CPUtime=0 cores=1,3
/proc/15046/stat : 15046 (MPhaseSAT64) R 15044 15046 13645 0 -1 4202496 382 0 0 0 0 0 0 0 25 0 1 0 268117956 3256320 321 33554432000 134512640 134761588 4287145168 18446744073709551615 134559293 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15046/statm: 795 321 237 61 0 98 0

[startup+0.031503 s]
/proc/loadavg: 1.28 2.03 2.99 5/189 15046
/proc/meminfo: memFree=22476156/32951124 swapFree=67111528/67111528
[pid=15046] ppid=15044 vsize=3608 CPUtime=0.02 cores=1,3
/proc/15046/stat : 15046 (MPhaseSAT64) R 15044 15046 13645 0 -1 4202496 530 0 0 0 2 0 0 0 25 0 1 0 268117956 3694592 469 33554432000 134512640 134761588 4287145168 18446744073709551615 134681015 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15046/statm: 902 469 273 61 0 205 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3608

[startup+0.100489 s]
/proc/loadavg: 1.28 2.03 2.99 5/189 15046
/proc/meminfo: memFree=22476156/32951124 swapFree=67111528/67111528
[pid=15046] ppid=15044 vsize=3896 CPUtime=0.09 cores=1,3
/proc/15046/stat : 15046 (MPhaseSAT64) R 15044 15046 13645 0 -1 4202496 580 0 0 0 9 0 0 0 25 0 1 0 268117956 3989504 519 33554432000 134512640 134761588 4287145168 18446744073709551615 134748020 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15046/statm: 974 519 273 61 0 277 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3896

[startup+0.300448 s]
/proc/loadavg: 1.28 2.03 2.99 5/189 15046
/proc/meminfo: memFree=22476156/32951124 swapFree=67111528/67111528
[pid=15046] ppid=15044 vsize=4736 CPUtime=0.29 cores=1,3
/proc/15046/stat : 15046 (MPhaseSAT64) R 15044 15046 13645 0 -1 4202496 814 0 0 0 29 0 0 0 25 0 1 0 268117956 4849664 753 33554432000 134512640 134761588 4287145168 18446744073709551615 134747192 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15046/statm: 1184 753 273 61 0 487 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4736

[startup+0.700381 s]
/proc/loadavg: 1.28 2.03 2.99 5/189 15046
/proc/meminfo: memFree=22476156/32951124 swapFree=67111528/67111528
[pid=15046] ppid=15044 vsize=5564 CPUtime=0.69 cores=1,3
/proc/15046/stat : 15046 (MPhaseSAT64) R 15044 15046 13645 0 -1 4202496 1138 0 0 0 69 0 0 0 25 0 1 0 268117956 5697536 961 33554432000 134512640 134761588 4287145168 18446744073709551615 134747168 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15046/statm: 1391 961 274 61 0 694 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5564

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

[startup+0.900331 s]
/proc/loadavg: 1.28 2.03 2.99 5/189 15046
/proc/meminfo: memFree=22476156/32951124 swapFree=67111528/67111528
[pid=15046] ppid=15044 vsize=5692 CPUtime=0.89 cores=1,3
/proc/15046/stat : 15046 (MPhaseSAT64) R 15044 15046 13645 0 -1 4202496 1173 0 0 0 89 0 0 0 25 0 1 0 268117956 5828608 996 33554432000 134512640 134761588 4287145168 18446744073709551615 134603224 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/15046/statm: 1423 996 277 61 0 726 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 5692

Child status: 10
Real time (s): 0.949493
CPU time (s): 0.947855
CPU user time (s): 0.945856
CPU system time (s): 0.001999
CPU usage (%): 99.8275
Max. virtual memory (cumulated for all children) (KiB): 5820

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.945856
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= 1183
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 node143 at 2011-04-02 17:10:23
IDJOB=3095056
IDBENCH=82938
IDSOLVER=1521
FILE ID=node143/3095056-1301757023
RUNJOBID= node143-1301757017-14763
PBS_JOBID= 12841038
Free space on /tmp= 72040 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S727005963-093.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095056-1301757023/watcher-3095056-1301757023 -o /tmp/evaluation-result-3095056-1301757023/solver-3095056-1301757023 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095056-1301757023.cnf

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

MD5SUM BENCH= 91e4bda9499071fffccca1352d82691f
RANDOM SEED=1717239364

node143.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		: 2666.846
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	: 5333.69
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		: 2666.846
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	: 5226.15
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		: 2666.846
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		: 2666.846
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		: 2666.846
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	: 5332.75
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		: 2666.846
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		: 2666.846
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		: 2666.846
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:      22476172 kB
Buffers:        353976 kB
Cached:        9786828 kB
SwapCached:          0 kB
Active:        6965644 kB
Inactive:      3249608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22476172 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            2092 kB
Writeback:           0 kB
AnonPages:       74584 kB
Mapped:          17184 kB
Slab:           196356 kB
PageTables:       5328 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   254744 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= 72040 MiB
End job on node143 at 2011-04-02 17:10:24