Trace number 3257677

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
PicoSAT 941SAT 0.008997 0.010948

General information on the benchmark

NameCRAFTED/sgi/
satsgi-n26himBHm28-p0-q293.cnf
MD5SUM77c99bec4213dcc6c3ba45acbf0b6bc7
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005998
Satisfiable
(Un)Satisfiability was proved
Number of variables728
Number of clauses18954
Sum of the clauses size38584
Maximum clause length28
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 218928
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 526

Solver Data 

0.00/0.01	s SATISFIABLE
0.00/0.01	v -1 -2 -3 -4 -5 -6 -7 -8 -9 -10 -11 -12 -13 -14 -15 -16 -17 -18 -19 -20 -21
0.00/0.01	v -22 -23 -24 -25 -26 -27 28 -29 -30 -31 -32 -33 -34 -35 -36 -37 -38 -39 -40
0.00/0.01	v -41 -42 -43 -44 -45 -46 -47 -48 -49 -50 -51 -52 -53 -54 55 -56 -57 -58 -59
0.00/0.01	v -60 -61 -62 -63 -64 -65 -66 -67 -68 -69 -70 -71 -72 -73 -74 -75 -76 -77 -78
0.00/0.01	v -79 -80 -81 82 -83 -84 -85 -86 -87 -88 -89 -90 -91 -92 -93 -94 -95 -96 -97
0.00/0.01	v -98 -99 -100 -101 -102 -103 -104 -105 -106 -107 -108 109 -110 -111 -112 -113
0.00/0.01	v -114 -115 -116 -117 -118 -119 -120 -121 -122 -123 -124 -125 -126 -127 -128
0.00/0.01	v -129 -130 -131 -132 -133 -134 -135 136 -137 -138 -139 -140 -141 -142 -143
0.00/0.01	v -144 -145 -146 -147 -148 -149 -150 -151 -152 -153 -154 -155 -156 -157 -158
0.00/0.01	v -159 -160 -161 -162 163 -164 -165 -166 -167 -168 -169 -170 -171 -172 -173
0.00/0.01	v -174 -175 -176 -177 -178 -179 -180 -181 -182 -183 -184 -185 -186 -187 -188
0.00/0.01	v -189 190 -191 -192 -193 -194 -195 -196 -197 -198 -199 -200 -201 -202 -203
0.00/0.01	v -204 -205 -206 -207 -208 -209 -210 -211 -212 -213 -214 -215 -216 217 -218
0.00/0.01	v -219 -220 -221 -222 -223 -224 -225 -226 -227 -228 -229 -230 -231 -232 -233
0.00/0.01	v -234 -235 -236 -237 -238 -239 -240 -241 -242 -243 244 -245 -246 -247 -248
0.00/0.01	v -249 -250 -251 -252 -253 -254 -255 -256 -257 -258 -259 -260 -261 -262 -263
0.00/0.01	v -264 -265 -266 -267 -268 -269 -270 271 -272 -273 -274 -275 -276 -277 -278
0.00/0.01	v -279 -280 -281 -282 -283 -284 -285 -286 -287 -288 -289 -290 -291 -292 -293
0.00/0.01	v -294 -295 -296 -297 298 -299 -300 -301 -302 -303 -304 -305 -306 -307 -308
0.00/0.01	v -309 -310 -311 -312 -313 -314 -315 -316 -317 -318 -319 -320 -321 -322 -323
0.00/0.01	v -324 325 -326 -327 -328 -329 -330 -331 -332 -333 -334 -335 -336 -337 -338
0.00/0.01	v -339 -340 -341 -342 -343 -344 -345 -346 -347 -348 -349 -350 -351 352 -353
0.00/0.01	v -354 -355 -356 -357 -358 -359 -360 -361 -362 -363 -364 -365 -366 -367 -368
0.00/0.01	v -369 -370 -371 -372 -373 -374 -375 -376 -377 -378 379 -380 -381 -382 -383
0.00/0.01	v -384 -385 -386 -387 -388 -389 -390 -391 -392 -393 -394 -395 -396 -397 -398
0.00/0.01	v -399 -400 -401 -402 -403 -404 -405 406 -407 -408 -409 -410 -411 -412 -413
0.00/0.01	v -414 -415 -416 -417 -418 -419 -420 -421 -422 -423 -424 -425 -426 -427 -428
0.00/0.01	v -429 -430 -431 -432 433 -434 -435 -436 -437 -438 -439 -440 -441 -442 -443
0.00/0.01	v -444 -445 -446 -447 -448 -449 -450 -451 -452 -453 -454 -455 -456 -457 -458
0.00/0.01	v -459 460 -461 -462 -463 -464 -465 -466 -467 -468 -469 -470 -471 -472 -473
0.00/0.01	v -474 -475 -476 -477 -478 -479 -480 -481 -482 -483 -484 -485 -486 487 -488
0.00/0.01	v -489 -490 -491 -492 -493 -494 -495 -496 -497 -498 -499 -500 -501 -502 -503
0.00/0.01	v -504 -505 -506 -507 -508 -509 -510 -511 -512 -513 514 -515 -516 -517 -518
0.00/0.01	v -519 -520 -521 -522 -523 -524 -525 -526 -527 -528 -529 -530 -531 -532 -533
0.00/0.01	v -534 -535 -536 -537 -538 -539 -540 541 -542 -543 -544 -545 -546 -547 -548
0.00/0.01	v -549 -550 -551 -552 -553 -554 -555 -556 -557 -558 -559 -560 -561 -562 -563
0.00/0.01	v -564 -565 -566 -567 568 -569 -570 -571 -572 -573 -574 -575 -576 -577 -578
0.00/0.01	v -579 -580 -581 -582 -583 -584 -585 -586 -587 -588 -589 -590 -591 -592 -593
0.00/0.01	v -594 595 -596 -597 -598 -599 -600 -601 -602 -603 -604 -605 -606 -607 -608
0.00/0.01	v -609 -610 -611 -612 -613 -614 -615 -616 -617 -618 -619 -620 -621 622 -623
0.00/0.01	v -624 -625 -626 -627 -628 -629 -630 -631 -632 -633 -634 -635 -636 -637 -638
0.00/0.01	v -639 -640 -641 -642 -643 -644 -645 -646 -647 -648 649 -650 -651 -652 -653
0.00/0.01	v -654 -655 -656 -657 -658 -659 -660 -661 -662 -663 -664 -665 -666 -667 -668
0.00/0.01	v -669 -670 -671 -672 -673 -674 -675 676 -677 -678 -679 -680 -681 -682 -683
0.00/0.01	v -684 -685 -686 -687 -688 -689 -690 -691 -692 -693 -694 -695 -696 -697 -698
0.00/0.01	v -699 -700 -701 -702 703 -704 -705 -706 -707 -708 -709 -710 -711 -712 -713
0.00/0.01	v -714 -715 -716 -717 -718 -719 -720 -721 -722 -723 -724 -725 -726 -727 -728 0

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3257677-1303472132/watcher-3257677-1303472132 -o /tmp/evaluation-result-3257677-1303472132/solver-3257677-1303472132 -C 2400 -W 1300 -M 7680 picosat HOME/instance-3257677-1303472132.cnf 

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: 3.00 3.79 3.86 2/174 28985
/proc/meminfo: memFree=16251652/32950928 swapFree=67111528/67111528
[pid=28985] ppid=28983 vsize=2140 CPUtime=0 cores=0,2
/proc/28985/stat : 28985 (picosat) R 28983 28985 28413 0 -1 4202496 278 0 0 0 0 0 0 0 24 0 1 0 458812986 2191360 225 33554432000 134512640 134603332 4289409360 18446744073709551615 134522262 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/28985/statm: 535 225 89 23 0 161 0

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

Child status: 10
Real time (s): 0.010948
CPU time (s): 0.008997
CPU user time (s): 0.007998
CPU system time (s): 0.000999
CPU usage (%): 82.1793
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.007998
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= 358
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= 3
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node123 at 2011-04-22 13:35:32
IDJOB=3257677
IDBENCH=71241
IDSOLVER=1604
FILE ID=node123/3257677-1303472132
RUNJOBID= node123-1303472132-28973
PBS_JOBID= 13107191
Free space on /tmp= 72192 MiB

SOLVER NAME= PicoSAT 941
BENCH NAME= SAT09/CRAFTED/sgi/satsgi-n26himBHm28-p0-q293.cnf
COMMAND LINE= picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3257677-1303472132/watcher-3257677-1303472132 -o /tmp/evaluation-result-3257677-1303472132/solver-3257677-1303472132 -C 2400 -W 1300 -M 7680  picosat HOME/instance-3257677-1303472132.cnf

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

MD5SUM BENCH= 77c99bec4213dcc6c3ba45acbf0b6bc7
RANDOM SEED=1452145470

node123.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		: 2666.838
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	: 5333.67
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		: 2666.838
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	: 5226.15
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		: 2666.838
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	: 5332.75
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		: 2666.838
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	: 5332.82
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		: 2666.838
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	: 5332.74
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		: 2666.838
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	: 5332.80
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		: 2666.838
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		: 2666.838
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:     32950928 kB
MemFree:      16251692 kB
Buffers:       1243672 kB
Cached:       14869940 kB
SwapCached:          0 kB
Active:        7024016 kB
Inactive:      9153308 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      16251692 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             184 kB
Writeback:           0 kB
AnonPages:       63328 kB
Mapped:          14496 kB
Slab:           456564 kB
PageTables:       4692 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   193152 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= 72192 MiB
End job on node123 at 2011-04-22 13:35:32