Trace number 3154431

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
sattime 2011-03-02SAT 0.019996 0.0205121

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 

0.01/0.02	c 0 clauses are redundant and removed
0.01/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.01/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.01/0.02	c initial seed is 897341917
0.01/0.02	c try=1 flip j=34398 walk=30675 seed 897341934
0.01/0.02	c A solution is found
0.01/0.02	s SATISFIABLE
0.01/0.02	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 
0.01/0.02	v 0 
0.01/0.02	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-3154431-1301683748/watcher-3154431-1301683748 -o /tmp/evaluation-result-3154431-1301683748/solver-3154431-1301683748 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154431-1301683748.cnf 897341917 

running on 2 cores: 4,6

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 4.02 3.95 4/189 2284
/proc/meminfo: memFree=24571448/32951124 swapFree=67110456/67111528
[pid=2284] ppid=2282 vsize=990404 CPUtime=0 cores=4,6
/proc/2284/stat : 2284 (sattime) R 2282 2284 1415 0 -1 4202496 338 0 0 0 0 0 0 0 25 0 1 0 358605483 1014173696 279 33554432000 4194304 4228548 140734473577984 18446744073709551615 224284586693 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2284/statm: 247601 280 116 9 0 244758 0

[startup+0.0147829 s]
/proc/loadavg: 4.03 4.02 3.95 4/189 2284
/proc/meminfo: memFree=24571448/32951124 swapFree=67110456/67111528
[pid=2284] ppid=2282 vsize=990536 CPUtime=0.01 cores=4,6
/proc/2284/stat : 2284 (sattime) R 2282 2284 1415 0 -1 4202496 382 0 0 0 1 0 0 0 25 0 1 0 358605483 1014308864 323 33554432000 4194304 4228548 140734473577984 18446744073709551615 4201090 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2284/statm: 247634 323 116 9 0 244791 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 990536

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

[startup+0.0147829 s]
/proc/loadavg: 4.03 4.02 3.95 4/189 2284
/proc/meminfo: memFree=24571448/32951124 swapFree=67110456/67111528
[pid=2284] ppid=2282 vsize=990536 CPUtime=0.01 cores=4,6
/proc/2284/stat : 2284 (sattime) R 2282 2284 1415 0 -1 4202496 382 0 0 0 1 0 0 0 25 0 1 0 358605483 1014308864 323 33554432000 4194304 4228548 140734473577984 18446744073709551615 4201090 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2284/statm: 247634 323 116 9 0 244791 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 990536

Child status: 10
Real time (s): 0.0205121
CPU time (s): 0.019996
CPU user time (s): 0.019996
CPU system time (s): 0
CPU usage (%): 97.4839
Max. virtual memory (cumulated for all children) (KiB): 990536

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.019996
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= 386
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 0.004999 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-01 20:49:08
IDJOB=3154431
IDBENCH=82938
IDSOLVER=1564
FILE ID=node118/3154431-1301683748
RUNJOBID= node118-1301678138-1434
PBS_JOBID= 12840579
Free space on /tmp= 71004 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S727005963-093.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154431-1301683748/watcher-3154431-1301683748 -o /tmp/evaluation-result-3154431-1301683748/solver-3154431-1301683748 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154431-1301683748.cnf 897341917

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

MD5SUM BENCH= 91e4bda9499071fffccca1352d82691f
RANDOM SEED=897341917

node118.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		: 2666.842
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5332.75
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		: 2666.842
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	: 5332.68
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      24571728 kB
Buffers:        267048 kB
Cached:        7784292 kB
SwapCached:        640 kB
Active:        4771852 kB
Inactive:      3351012 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      24571728 kB
SwapTotal:    67111528 kB
SwapFree:     67110456 kB
Dirty:            7796 kB
Writeback:           0 kB
AnonPages:       70632 kB
Mapped:          15400 kB
Slab:           193200 kB
PageTables:       5288 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3212892 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= 70996 MiB
End job on node118 at 2011-04-01 20:49:08