Trace number 3169425

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
shortsattime+ 2011-03-02SAT 0.176972 0.176594

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v650-c2769-S1261029273-036.SATISFIABLE.cnf
MD5SUMad12e37a0f3b75f1b331fdb5e803c99f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.034993
Satisfiable
(Un)Satisfiability was proved
Number of variables650
Number of clauses2769
Sum of the clauses size8307
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32769
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.10/0.17	c 0 clauses are redundant and removed
0.10/0.17	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.10/0.17	c 0 vars are fixed and 0 clauses are removed after lookahead
0.10/0.17	c initial seed is 887868225
0.10/0.17	c try=1 flip j=389202 walk=347182 seed 887868242
0.10/0.17	c A solution is found
0.10/0.17	s SATISFIABLE
0.10/0.17	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 -597 598 599 600 601 602 603 604 -605 606 607 608 609 -610 -611 612 613 614 -615 616 -617 618 619 -620 621 622 -623 624 -625 626 -627 628 629 630 -631 -632 633 634 -635 636 637 -638 639 -640 641 -642 -643 644 645 -646 647 648 -649 -650 
0.10/0.17	v 0 
0.10/0.17	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-3169425-1301708947/watcher-3169425-1301708947 -o /tmp/evaluation-result-3169425-1301708947/solver-3169425-1301708947 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3169425-1301708947.cnf 887867998 

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: 7.12 7.87 7.59 4/189 18799
/proc/meminfo: memFree=23571292/32951124 swapFree=67111528/67111528
[pid=18799] ppid=18797 vsize=881028 CPUtime=0 cores=5,7
/proc/18799/stat : 18799 (shortsattime+) R 18797 18799 18712 0 -1 4202496 364 0 0 0 0 0 0 0 25 0 1 0 282492435 902172672 304 33554432000 4194304 4228340 140736891616224 18446744073709551615 218905132528 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/18799/statm: 220257 304 116 9 0 217414 0

[startup+0.0525229 s]
/proc/loadavg: 7.12 7.87 7.59 4/189 18799
/proc/meminfo: memFree=23571292/32951124 swapFree=67111528/67111528
[pid=18799] ppid=18797 vsize=881028 CPUtime=0.05 cores=5,7
/proc/18799/stat : 18799 (shortsattime+) R 18797 18799 18712 0 -1 4202496 364 0 0 0 5 0 0 0 25 0 1 0 282492435 902172672 304 33554432000 4194304 4228340 140736891616224 18446744073709551615 4218489 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/18799/statm: 220257 304 116 9 0 217414 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 881028

[startup+0.100514 s]
/proc/loadavg: 7.12 7.87 7.59 4/189 18799
/proc/meminfo: memFree=23571292/32951124 swapFree=67111528/67111528
[pid=18799] ppid=18797 vsize=881028 CPUtime=0.1 cores=5,7
/proc/18799/stat : 18799 (shortsattime+) R 18797 18799 18712 0 -1 4202496 364 0 0 0 10 0 0 0 25 0 1 0 282492435 902172672 304 33554432000 4194304 4228340 140736891616224 18446744073709551615 4218738 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/18799/statm: 220257 304 116 9 0 217414 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 881028

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

Child status: 10
Real time (s): 0.176594
CPU time (s): 0.176972
CPU user time (s): 0.175973
CPU system time (s): 0.000999
CPU usage (%): 100.214
Max. virtual memory (cumulated for all children) (KiB): 881028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.175973
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 369
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= 1

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node137 at 2011-04-02 03:49:07
IDJOB=3169425
IDBENCH=83043
IDSOLVER=1578
FILE ID=node137/3169425-1301708947
RUNJOBID= node137-1301708947-18733
PBS_JOBID= 12840860
Free space on /tmp= 72164 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v650-c2769-S1261029273-036.SATISFIABLE.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169425-1301708947/watcher-3169425-1301708947 -o /tmp/evaluation-result-3169425-1301708947/solver-3169425-1301708947 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3169425-1301708947.cnf 887867998

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

MD5SUM BENCH= ad12e37a0f3b75f1b331fdb5e803c99f
RANDOM SEED=887867998

node137.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		: 2666.844
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	: 5333.68
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		: 2666.844
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		: 2666.844
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		: 2666.844
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	: 5332.74
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		: 2666.844
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		: 2666.844
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		: 2666.844
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	: 5332.83
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		: 2666.844
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      23571448 kB
Buffers:        314696 kB
Cached:        8754036 kB
SwapCached:          0 kB
Active:        5248632 kB
Inactive:      3885796 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23571448 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31580 kB
Writeback:           0 kB
AnonPages:       65248 kB
Mapped:          15100 kB
Slab:           180308 kB
PageTables:       5380 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2883472 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= 72156 MiB
End job on node137 at 2011-04-02 03:49:07