Trace number 3157295

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
shortsattime2011 2011-03-02SAT 0.030995 0.0349721

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v700-c2982-S1617172756-030.SATISFIABLE.cnf
MD5SUM47049d4705301f4ac565d8b47d11d0a5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables700
Number of clauses2982
Sum of the clauses size8946
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32982
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.03	c 0 clauses are redundant and removed
0.00/0.03	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.03	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.03	c initial seed is 1125246345
0.00/0.03	c try=1 flip j=50472 walk=44554 seed 1125246362
0.00/0.03	c A solution is found
0.00/0.03	s SATISFIABLE
0.00/0.03	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 -649 650 651 652 -653 -654 -655 -656 -657 658 659 -660 661 662 663 -664 665 -666 667 -668 669 -670 -671 672 673 674 675 -676 -677 -678 -679 680 -681 -682 683 684 -685 -686 -687 688 689 690 691 -692 -693 694 695 696 -697 698 -699 -700 
0.00/0.03	v 0 
0.00/0.03	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-3157295-1301684038/watcher-3157295-1301684038 -o /tmp/evaluation-result-3157295-1301684038/solver-3157295-1301684038 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157295-1301684038.cnf 1125239558 

running on 2 cores: 0,2

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 4.00 3.96 5/189 3797
/proc/meminfo: memFree=21966956/32950928 swapFree=67111528/67111528
[pid=3797] ppid=3795 vsize=1185580 CPUtime=0 cores=0,2
/proc/3797/stat : 3797 (shortsattime201) R 3795 3797 2541 0 -1 4202496 265 0 0 0 0 0 0 0 25 0 1 0 280002600 1214033920 207 33554432000 4194304 4230460 140736315088304 18446744073709551615 4202638 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/3797/statm: 296395 211 102 9 0 293552 0

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

Child status: 10
Real time (s): 0.0349721
CPU time (s): 0.030995
CPU user time (s): 0.030995
CPU system time (s): 0
CPU usage (%): 88.6278
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.030995
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= 428
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 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node122 at 2011-04-01 20:53:58
IDJOB=3157295
IDBENCH=83010
IDSOLVER=1566
FILE ID=node122/3157295-1301684038
RUNJOBID= node122-1301678144-2560
PBS_JOBID= 12840575
Free space on /tmp= 71612 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v700-c2982-S1617172756-030.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157295-1301684038/watcher-3157295-1301684038 -o /tmp/evaluation-result-3157295-1301684038/solver-3157295-1301684038 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157295-1301684038.cnf 1125239558

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

MD5SUM BENCH= 47049d4705301f4ac565d8b47d11d0a5
RANDOM SEED=1125239558

node122.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		: 2666.820
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	: 5333.64
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		: 2666.820
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		: 2666.820
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	: 5332.75
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		: 2666.820
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.75
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		: 2666.820
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	: 5332.97
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      21967360 kB
Buffers:        335708 kB
Cached:       10319912 kB
SwapCached:          0 kB
Active:        6938104 kB
Inactive:      3788012 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      21967360 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7928 kB
Writeback:           0 kB
AnonPages:       70444 kB
Mapped:          15548 kB
Slab:           193888 kB
PageTables:       5872 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3797064 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= 71604 MiB
End job on node122 at 2011-04-01 20:53:58