Trace number 301278

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, and are wall clock time (not CPU 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
Hybrid1 2007-02-08SAT 57.3053 57.3247

General information on the benchmark

Namerandom/LargeSize/5SAT/v600/
unif-k5-r20-v600-c12000-S471246417-03.cnf
MD5SUM0eb79e36a6a126bd4e244caabd87546c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark34.3168
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses12000
Sum of the clauses size60000
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 512000
Number of clauses of size over 50

Solver Data (download as text)

57.24/57.32	c try 1 flip j 5836372
57.24/57.32	c A solution is found
57.24/57.32	s SATISFIABLE
57.24/57.32	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 
57.24/57.32	v 0 
57.24/57.32	c Done (mycputime is 0.006 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node10/watcher-301278-1171961458 -o ROOT/results/node10/solver-301278-1171961458 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/301278-1171961458/Hybrid1 /tmp/evaluation/301278-1171961458/instance-301278-1171961458.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 2/77 6753
/proc/meminfo: memFree=1493752/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=244720 CPUtime=0
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 95 0 0 0 0 0 0 0 18 0 1 0 216100792 250593280 79 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134604589 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 61180 79 39 103 0 60684 0

[startup+0.107397 s]
/proc/loadavg: 1.00 1.00 1.00 2/77 6753
/proc/meminfo: memFree=1493752/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=245772 CPUtime=0.1
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 426 0 0 0 10 0 0 0 18 0 1 0 216100792 251670528 409 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134523505 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 61443 409 40 103 0 60947 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 245772

[startup+0.515452 s]
/proc/loadavg: 1.00 1.00 1.00 2/77 6753
/proc/meminfo: memFree=1493752/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=0.51
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 51 0 0 0 21 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134545336 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 248148

[startup+1.33556 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490928/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=1.33
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 133 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134545357 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 248148

[startup+2.97178 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490800/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=2.96
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 296 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134551505 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 248148

[startup+6.25523 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490544/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=6.24
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 624 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134551187 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 248148

[startup+12.7121 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490672/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=12.7
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 1270 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134552522 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 248148

[startup+25.5158 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490736/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=25.5
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 2550 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134553957 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 248148

[startup+51.1283 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490736/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=51.1
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 5110 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134545357 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 248148

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

[startup+52.4585 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490736/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=52.43
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 5243 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134545269 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 52.43
Current children cumulated vsize (KiB) 248148

[startup+55.7399 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490736/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=55.71
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 5571 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134551187 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 55.71
Current children cumulated vsize (KiB) 248148

[startup+56.56 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490736/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=56.53
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 5653 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134545107 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 56.53
Current children cumulated vsize (KiB) 248148

[startup+56.9681 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490736/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=56.94
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 5694 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134551583 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 56.94
Current children cumulated vsize (KiB) 248148

[startup+57.1721 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490736/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=57.14
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 5714 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134553634 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 57.14
Current children cumulated vsize (KiB) 248148

[startup+57.2741 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 6754
/proc/meminfo: memFree=1490736/2055920 swapFree=4192812/4192956
[pid=6753] ppid=6751 vsize=248148 CPUtime=57.24
/proc/6753/stat : 6753 (Hybrid1) R 6751 6753 6341 0 -1 4194304 719 0 0 0 5724 0 0 0 25 0 1 0 216100792 254103552 699 18446744073709551615 134512640 134935932 4294956624 18446744073709551615 134551608 0 0 4096 0 0 0 0 17 1 0 0
/proc/6753/statm: 62037 699 44 103 0 61541 0
Current children cumulated CPU time (s) 57.24
Current children cumulated vsize (KiB) 248148

Child status: 10
Real time (s): 57.3247
CPU time (s): 57.3053
CPU user time (s): 57.2983
CPU system time (s): 0.006998
CPU usage (%): 99.9661
Max. virtual memory (cumulated for all children) (KiB): 248148

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 57.2983
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 732
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= 8
involuntary context switches= 88

runsolver used 0.06199 second user time and 0.144977 second system time

The end

Launcher Data (download as text)

Begin job on node10 on Tue Feb 20 08:50:58 UTC 2007

IDJOB= 301278
IDBENCH= 20055
IDSOLVER= 115
FILE ID= node10/301278-1171961458

PBS_JOBID= 3849015

Free space on /tmp= 66543 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v600/unif-k5-r20-v600-c12000-S471246417-03.cnf
COMMAND LINE= /tmp/evaluation/301278-1171961458/Hybrid1 /tmp/evaluation/301278-1171961458/instance-301278-1171961458.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-301278-1171961458 -o ROOT/results/node10/solver-301278-1171961458 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/301278-1171961458/Hybrid1 /tmp/evaluation/301278-1171961458/instance-301278-1171961458.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  0eb79e36a6a126bd4e244caabd87546c

RANDOM SEED= 550224976

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node10.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.232
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.232
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1494224 kB
Buffers:         52732 kB
Cached:         392600 kB
SwapCached:          0 kB
Active:         272408 kB
Inactive:       217112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1494224 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            6424 kB
Writeback:           0 kB
Mapped:          63136 kB
Slab:            57648 kB
Committed_AS:  1245588 kB
PageTables:       1832 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66543 MiB

End job on node10 on Tue Feb 20 08:51:55 UTC 2007