Trace number 3154499

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 0.484926 0.487874

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S610796494-086.SATISFIABLE.cnf
MD5SUM82f21398af62a72249630e457a91aa93
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.081987
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 

0.39/0.48	c 0 clauses are redundant and removed
0.39/0.48	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.39/0.48	c 0 vars are fixed and 0 clauses are removed after lookahead
0.39/0.48	c initial seed is 703846710
0.39/0.48	c try=1 flip j=1022769 walk=891117 seed 703846727
0.39/0.48	c A solution is found
0.39/0.48	s SATISFIABLE
0.39/0.48	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 
0.39/0.48	v 0 
0.39/0.48	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-3154499-1301684887/watcher-3154499-1301684887 -o /tmp/evaluation-result-3154499-1301684887/solver-3154499-1301684887 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154499-1301684887.cnf 703846710 

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: 1.02 2.48 3.34 5/178 11531
/proc/meminfo: memFree=21926612/32950928 swapFree=67111528/67111528
[pid=11531] ppid=11529 vsize=990404 CPUtime=0 cores=0,2
/proc/11531/stat : 11531 (sattime) R 11529 11531 10450 0 -1 4202496 306 0 0 0 0 0 0 0 24 0 1 0 280088354 1014173696 248 33554432000 4194304 4228548 140735510183792 18446744073709551615 4204659 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/11531/statm: 247601 252 116 9 0 244758 0

[startup+0.062049 s]
/proc/loadavg: 1.02 2.48 3.34 5/178 11531
/proc/meminfo: memFree=21926612/32950928 swapFree=67111528/67111528
[pid=11531] ppid=11529 vsize=990536 CPUtime=0.05 cores=0,2
/proc/11531/stat : 11531 (sattime) R 11529 11531 10450 0 -1 4202496 383 0 0 0 5 0 0 0 24 0 1 0 280088354 1014308864 323 33554432000 4194304 4228548 140735510183792 18446744073709551615 4217544 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/11531/statm: 247634 323 116 9 0 244791 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 990536

[startup+0.101089 s]
/proc/loadavg: 1.02 2.48 3.34 5/178 11531
/proc/meminfo: memFree=21926612/32950928 swapFree=67111528/67111528
[pid=11531] ppid=11529 vsize=990536 CPUtime=0.09 cores=0,2
/proc/11531/stat : 11531 (sattime) R 11529 11531 10450 0 -1 4202496 383 0 0 0 9 0 0 0 24 0 1 0 280088354 1014308864 323 33554432000 4194304 4228548 140735510183792 18446744073709551615 4217270 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/11531/statm: 247634 323 116 9 0 244791 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 990536

[startup+0.301038 s]
/proc/loadavg: 1.02 2.48 3.34 5/178 11531
/proc/meminfo: memFree=21926612/32950928 swapFree=67111528/67111528
[pid=11531] ppid=11529 vsize=990536 CPUtime=0.29 cores=0,2
/proc/11531/stat : 11531 (sattime) R 11529 11531 10450 0 -1 4202496 383 0 0 0 29 0 0 0 25 0 1 0 280088354 1014308864 323 33554432000 4194304 4228548 140735510183792 18446744073709551615 4219035 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/11531/statm: 247634 323 116 9 0 244791 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 990536

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

[startup+0.401039 s]
/proc/loadavg: 1.02 2.48 3.34 5/178 11531
/proc/meminfo: memFree=21926612/32950928 swapFree=67111528/67111528
[pid=11531] ppid=11529 vsize=990536 CPUtime=0.39 cores=0,2
/proc/11531/stat : 11531 (sattime) R 11529 11531 10450 0 -1 4202496 383 0 0 0 39 0 0 0 25 0 1 0 280088354 1014308864 323 33554432000 4194304 4228548 140735510183792 18446744073709551615 4217237 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/11531/statm: 247634 323 116 9 0 244791 0
Current children cumulated CPU time (s) 0.39
Current children cumulated vsize (KiB) 990536

Child status: 10
Real time (s): 0.487874
CPU time (s): 0.484926
CPU user time (s): 0.484926
CPU system time (s): 0
CPU usage (%): 99.3958
Max. virtual memory (cumulated for all children) (KiB): 990536

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.484926
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= 387
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 0.003999 second user time and 0.001999 second system time

The end

Launcher Data 

Begin job on node125 at 2011-04-01 21:08:07
IDJOB=3154499
IDBENCH=83006
IDSOLVER=1564
FILE ID=node125/3154499-1301684887
RUNJOBID= node125-1301684887-11505
PBS_JOBID= 12840572
Free space on /tmp= 71720 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S610796494-086.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154499-1301684887/watcher-3154499-1301684887 -o /tmp/evaluation-result-3154499-1301684887/solver-3154499-1301684887 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154499-1301684887.cnf 703846710

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

MD5SUM BENCH= 82f21398af62a72249630e457a91aa93
RANDOM SEED=703846710

node125.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		: 2666.828
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	: 5333.65
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		: 2666.828
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	: 5266.55
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		: 2666.828
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	: 5332.84
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		: 2666.828
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		: 2666.828
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		: 2666.828
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	: 5332.74
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		: 2666.828
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		: 2666.828
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:      21927264 kB
Buffers:        348120 kB
Cached:       10355660 kB
SwapCached:          0 kB
Active:        6658048 kB
Inactive:      4108360 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      21927264 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           23792 kB
Writeback:           0 kB
AnonPages:       62088 kB
Mapped:          15004 kB
Slab:           194588 kB
PageTables:       5108 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   212088 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= 71696 MiB
End job on node125 at 2011-04-01 21:08:07