Trace number 3426838

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 1.57476 1.57486

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S1468528501-076.SATISFIABLE.cnf
MD5SUM6cc83c4bac88845b4bcdf4315c840cca
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.724889
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 

1.50/1.57	c 0 clauses are redundant and removed
1.50/1.57	c 0 vars are fixed and 0 clauses are removed after unit propagation
1.50/1.57	c 0 vars are fixed and 0 clauses are removed after lookahead
1.50/1.57	c initial seed is 1097825632
1.50/1.57	c try=1 flip j=3456559 walk=3010234 seed 1097825649
1.50/1.57	c A solution is found
1.50/1.57	s SATISFIABLE
1.50/1.57	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 
1.50/1.57	v 0 
1.50/1.57	c Done (mycputime is 1 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3426838-1306773965/watcher-3426838-1306773965 -o /tmp/evaluation-result-3426838-1306773965/solver-3426838-1306773965 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426838-1306773965.cnf 1097822175 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.01 2.00 2/373 21562
/proc/meminfo: memFree=7649168/32951124 swapFree=37160472/67111528
[pid=21562] ppid=21560 vsize=1185848 CPUtime=0 cores=0,2,4,6
/proc/21562/stat : 21562 (sattime2011) R 21560 21562 20754 0 -1 4202496 391 0 0 0 0 0 0 0 25 0 1 0 788996977 1214308352 334 33554432000 4194304 4230460 140733816495440 18446744073709551615 4199706 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21562/statm: 296462 334 117 9 0 293619 0

[startup+0.0409341 s]
/proc/loadavg: 2.00 2.01 2.00 2/373 21562
/proc/meminfo: memFree=7649168/32951124 swapFree=37160472/67111528
[pid=21562] ppid=21560 vsize=1185848 CPUtime=0.04 cores=0,2,4,6
/proc/21562/stat : 21562 (sattime2011) R 21560 21562 20754 0 -1 4202496 391 0 0 0 4 0 0 0 25 0 1 0 788996977 1214308352 334 33554432000 4194304 4230460 140733816495440 18446744073709551615 4200270 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21562/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1185848

[startup+0.100951 s]
/proc/loadavg: 2.00 2.01 2.00 2/373 21562
/proc/meminfo: memFree=7649168/32951124 swapFree=37160472/67111528
[pid=21562] ppid=21560 vsize=1185848 CPUtime=0.1 cores=0,2,4,6
/proc/21562/stat : 21562 (sattime2011) R 21560 21562 20754 0 -1 4202496 391 0 0 0 10 0 0 0 25 0 1 0 788996977 1214308352 334 33554432000 4194304 4230460 140733816495440 18446744073709551615 4221614 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21562/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1185848

[startup+0.30091 s]
/proc/loadavg: 2.00 2.01 2.00 2/373 21562
/proc/meminfo: memFree=7649168/32951124 swapFree=37160472/67111528
[pid=21562] ppid=21560 vsize=1185848 CPUtime=0.3 cores=0,2,4,6
/proc/21562/stat : 21562 (sattime2011) R 21560 21562 20754 0 -1 4202496 391 0 0 0 30 0 0 0 25 0 1 0 788996977 1214308352 334 33554432000 4194304 4230460 140733816495440 18446744073709551615 4223253 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21562/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1185848

[startup+0.700842 s]
/proc/loadavg: 2.00 2.01 2.00 2/373 21562
/proc/meminfo: memFree=7649168/32951124 swapFree=37160472/67111528
[pid=21562] ppid=21560 vsize=1185848 CPUtime=0.7 cores=0,2,4,6
/proc/21562/stat : 21562 (sattime2011) R 21560 21562 20754 0 -1 4202496 391 0 0 0 70 0 0 0 25 0 1 0 788996977 1214308352 334 33554432000 4194304 4230460 140733816495440 18446744073709551615 4219850 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21562/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 1185848

[startup+1.5007 s]
/proc/loadavg: 2.00 2.00 2.00 3/374 21563
/proc/meminfo: memFree=7647920/32951124 swapFree=37160472/67111528
[pid=21562] ppid=21560 vsize=1185848 CPUtime=1.5 cores=0,2,4,6
/proc/21562/stat : 21562 (sattime2011) R 21560 21562 20754 0 -1 4202496 391 0 0 0 150 0 0 0 25 0 1 0 788996977 1214308352 334 33554432000 4194304 4230460 140733816495440 18446744073709551615 4200262 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/21562/statm: 296462 334 117 9 0 293619 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1185848

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

Child status: 10
Real time (s): 1.57486
CPU time (s): 1.57476
CPU user time (s): 1.57376
CPU system time (s): 0.000999
CPU usage (%): 99.9933
Max. virtual memory (cumulated for all children) (KiB): 1185848

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.57376
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= 395
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= 7

runsolver used 0.007998 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node104 at 2011-05-30 18:46:05
IDJOB=3426838
IDBENCH=82810
IDSOLVER=1924
FILE ID=node104/3426838-1306773965
RUNJOBID= node104-1306761774-20772
PBS_JOBID= 13475020
Free space on /tmp= 59176 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S1468528501-076.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426838-1306773965/watcher-3426838-1306773965 -o /tmp/evaluation-result-3426838-1306773965/solver-3426838-1306773965 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426838-1306773965.cnf 1097822175

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 6cc83c4bac88845b4bcdf4315c840cca
RANDOM SEED=1097822175

node104.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		: 2666.855
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	: 5333.71
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		: 2666.855
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		: 2666.855
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	: 5332.67
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		: 2666.855
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	: 5332.80
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		: 2666.855
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	: 5293.18
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		: 2666.855
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		: 2666.855
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		: 2666.855
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	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:       7649324 kB
Buffers:        386132 kB
Cached:       22432444 kB
SwapCached:     152248 kB
Active:       18201160 kB
Inactive:      6395540 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       7649324 kB
SwapTotal:    67111528 kB
SwapFree:     37160472 kB
Dirty:            7800 kB
Writeback:          28 kB
AnonPages:     1638888 kB
Mapped:          10764 kB
Slab:           550800 kB
PageTables:      89272 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 88910292 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= 59168 MiB
End job on node104 at 2011-05-30 18:46:07