Trace number 3153725

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
sattime2011 2011-03-02SAT 0.350946 0.352601

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S2019147653-030.SATISFIABLE.cnf
MD5SUMb15e29d3a1300cd412b2c819b5ccc2fa
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
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 

0.29/0.35	c 0 clauses are redundant and removed
0.29/0.35	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.29/0.35	c 0 vars are fixed and 0 clauses are removed after lookahead
0.29/0.35	c initial seed is 1235570414
0.29/0.35	c try=1 flip j=755022 walk=653070 seed 1235570431
0.29/0.35	c A solution is found
0.29/0.35	s SATISFIABLE
0.29/0.35	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 -231 232 233 234 235 -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 -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 -595 596 -597 -598 -599 600 
0.29/0.35	v 0 
0.29/0.35	c Done (mycputime is 0 seconds)

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-3153725-1301682045/watcher-3153725-1301682045 -o /tmp/evaluation-result-3153725-1301682045/solver-3153725-1301682045 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153725-1301682045.cnf 1235566957 

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: 3.97 3.99 3.91 5/189 26094
/proc/meminfo: memFree=21899612/32950928 swapFree=67111528/67111528
[pid=26094] ppid=26092 vsize=1185848 CPUtime=0 cores=5,7
/proc/26094/stat : 26094 (sattime2011) R 26092 26094 25206 0 -1 4202496 392 0 0 0 0 0 0 0 25 0 1 0 279801232 1214308352 332 33554432000 4194304 4230460 140733815833200 18446744073709551615 4223068 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26094/statm: 296462 332 117 9 0 293619 0

[startup+0.101473 s]
/proc/loadavg: 3.97 3.99 3.91 5/189 26094
/proc/meminfo: memFree=21899612/32950928 swapFree=67111528/67111528
[pid=26094] ppid=26092 vsize=1185848 CPUtime=0.09 cores=5,7
/proc/26094/stat : 26094 (sattime2011) R 26092 26094 25206 0 -1 4202496 394 0 0 0 9 0 0 0 25 0 1 0 279801232 1214308352 334 33554432000 4194304 4230460 140733815833200 18446744073709551615 4221625 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26094/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185848

[startup+0.200455 s]
/proc/loadavg: 3.97 3.99 3.91 5/189 26094
/proc/meminfo: memFree=21899612/32950928 swapFree=67111528/67111528
[pid=26094] ppid=26092 vsize=1185848 CPUtime=0.19 cores=5,7
/proc/26094/stat : 26094 (sattime2011) R 26092 26094 25206 0 -1 4202496 394 0 0 0 19 0 0 0 25 0 1 0 279801232 1214308352 334 33554432000 4194304 4230460 140733815833200 18446744073709551615 4217095 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26094/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1185848

[startup+0.300435 s]
/proc/loadavg: 3.97 3.99 3.91 5/189 26094
/proc/meminfo: memFree=21899612/32950928 swapFree=67111528/67111528
[pid=26094] ppid=26092 vsize=1185848 CPUtime=0.29 cores=5,7
/proc/26094/stat : 26094 (sattime2011) R 26092 26094 25206 0 -1 4202496 394 0 0 0 29 0 0 0 25 0 1 0 279801232 1214308352 334 33554432000 4194304 4230460 140733815833200 18446744073709551615 4221614 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26094/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1185848

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

[startup+0.300435 s]
/proc/loadavg: 3.97 3.99 3.91 5/189 26094
/proc/meminfo: memFree=21899612/32950928 swapFree=67111528/67111528
[pid=26094] ppid=26092 vsize=1185848 CPUtime=0.29 cores=5,7
/proc/26094/stat : 26094 (sattime2011) R 26092 26094 25206 0 -1 4202496 394 0 0 0 29 0 0 0 25 0 1 0 279801232 1214308352 334 33554432000 4194304 4230460 140733815833200 18446744073709551615 4221614 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/26094/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1185848

Child status: 10
Real time (s): 0.352601
CPU time (s): 0.350946
CPU user time (s): 0.350946
CPU system time (s): 0
CPU usage (%): 99.5306
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.350946
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= 398
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= 2
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node149 at 2011-04-01 20:20:45
IDJOB=3153725
IDBENCH=82832
IDSOLVER=1563
FILE ID=node149/3153725-1301682045
RUNJOBID= node149-1301678135-25227
PBS_JOBID= 12840554
Free space on /tmp= 71540 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S2019147653-030.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153725-1301682045/watcher-3153725-1301682045 -o /tmp/evaluation-result-3153725-1301682045/solver-3153725-1301682045 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153725-1301682045.cnf 1235566957

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

MD5SUM BENCH= b15e29d3a1300cd412b2c819b5ccc2fa
RANDOM SEED=1235566957

node149.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		: 2666.806
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	: 5333.61
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		: 2666.806
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		: 2666.806
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	: 5332.83
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		: 2666.806
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	: 5332.73
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		: 2666.806
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		: 2666.806
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		: 2666.806
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		: 2666.806
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      21899892 kB
Buffers:        352020 kB
Cached:       10360432 kB
SwapCached:          0 kB
Active:        7572080 kB
Inactive:      3209980 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      21899892 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           15560 kB
Writeback:           0 kB
AnonPages:       69000 kB
Mapped:          15320 kB
Slab:           205044 kB
PageTables:       5696 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3795680 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= 71532 MiB
End job on node149 at 2011-04-01 20:20:46