Trace number 3153637

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 0.052991 0.0527779

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v750-c3195-S1985868475-070.SATISFIABLE.cnf
MD5SUM2611875052dd229d9ca71a614eae0715
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.015996
Satisfiable
(Un)Satisfiability was proved
Number of variables750
Number of clauses3195
Sum of the clauses size9585
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33195
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.05	c 0 clauses are redundant and removed
0.00/0.05	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.05	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.05	c initial seed is 2051364949
0.00/0.05	c try=1 flip j=95636 walk=83670 seed 2051364966
0.00/0.05	c A solution is found
0.00/0.05	s SATISFIABLE
0.00/0.05	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 -700 701 702 703 704 705 -706 707 -708 709 -710 -711 712 713 714 715 716 717 718 -719 720 -721 722 723 724 -725 726 727 728 729 730 731 -732 -733 734 735 -736 -737 -738 -739 -740 -741 -742 -743 744 745 746 747 -748 -749 750 
0.00/0.05	v 0 
0.00/0.05	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-3153637-1301680764/watcher-3153637-1301680764 -o /tmp/evaluation-result-3153637-1301680764/solver-3153637-1301680764 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153637-1301680764.cnf 2051361492 

running on 2 cores: 1,3

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: 4.01 4.00 3.73 4/189 28640
/proc/meminfo: memFree=23478008/32951124 swapFree=67102208/67111528
[pid=28640] ppid=28638 vsize=1185980 CPUtime=0 cores=1,3
/proc/28640/stat : 28640 (sattime2011) R 28638 28640 28204 0 -1 4202496 436 0 0 0 0 0 0 0 25 0 1 0 358307101 1214443520 376 33554432000 4194304 4230460 140734322527792 18446744073709551615 4218358 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28640/statm: 296495 378 117 9 0 293652 0

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

Child status: 10
Real time (s): 0.0527779
CPU time (s): 0.052991
CPU user time (s): 0.051992
CPU system time (s): 0.000999
CPU usage (%): 100.404
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.051992
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= 443
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 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node119 at 2011-04-01 19:59:24
IDJOB=3153637
IDBENCH=82744
IDSOLVER=1563
FILE ID=node119/3153637-1301680764
RUNJOBID= node119-1301678150-28225
PBS_JOBID= 12840578
Free space on /tmp= 71036 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v750-c3195-S1985868475-070.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153637-1301680764/watcher-3153637-1301680764 -o /tmp/evaluation-result-3153637-1301680764/solver-3153637-1301680764 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153637-1301680764.cnf 2051361492

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

MD5SUM BENCH= 2611875052dd229d9ca71a614eae0715
RANDOM SEED=2051361492

node119.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		: 2666.815
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	: 5333.63
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		: 2666.815
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		: 2666.815
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		: 2666.815
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		: 2666.815
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	: 5332.67
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		: 2666.815
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		: 2666.815
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	: 5332.74
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		: 2666.815
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      23478040 kB
Buffers:        278276 kB
Cached:        8821736 kB
SwapCached:       5376 kB
Active:        4560044 kB
Inactive:      4654320 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23478040 kB
SwapTotal:    67111528 kB
SwapFree:     67102208 kB
Dirty:           16052 kB
Writeback:           0 kB
AnonPages:      112568 kB
Mapped:          15176 kB
Slab:           195300 kB
PageTables:       5372 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3831492 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= 71028 MiB
End job on node119 at 2011-04-01 19:59:25