Trace number 3154358

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 0.055991 0.0607879

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S379672572-039.SATISFIABLE.cnf
MD5SUM9ba35b45d3c5bc2de5bf2217a9a677d5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.055991
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 

0.00/0.06	c 0 clauses are redundant and removed
0.00/0.06	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.06	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.06	c initial seed is 1890036275
0.00/0.06	c try=1 flip j=105480 walk=92187 seed 1890036292
0.00/0.06	c A solution is found
0.00/0.06	s SATISFIABLE
0.00/0.06	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 
0.00/0.06	v 0 
0.00/0.06	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-3154358-1301683350/watcher-3154358-1301683350 -o /tmp/evaluation-result-3154358-1301683350/solver-3154358-1301683350 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154358-1301683350.cnf 1890036275 

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: 3.94 4.00 3.94 5/189 2100
/proc/meminfo: memFree=24571588/32951124 swapFree=67110456/67111528
[pid=2100] ppid=2098 vsize=11760 CPUtime=0 cores=0,2
/proc/2100/stat : 2100 (runsolver) R 2098 2100 1415 0 -1 4202560 41 0 0 0 0 0 0 0 25 0 1 0 358565651 12042240 49 33554432000 4194304 5392636 140733384191360 18446744073709551615 4838247 0 2147483391 4096 24578 0 0 0 17 2 0 0 0
/proc/2100/statm: 2940 49 30 293 0 2644 0

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

Child status: 10
Real time (s): 0.0607879
CPU time (s): 0.055991
CPU user time (s): 0.055991
CPU system time (s): 0
CPU usage (%): 92.1088
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.055991
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= 0

runsolver used 0.000999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-01 20:42:30
IDJOB=3154358
IDBENCH=82865
IDSOLVER=1564
FILE ID=node118/3154358-1301683350
RUNJOBID= node118-1301678138-1433
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-S379672572-039.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154358-1301683350/watcher-3154358-1301683350 -o /tmp/evaluation-result-3154358-1301683350/solver-3154358-1301683350 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154358-1301683350.cnf 1890036275

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

MD5SUM BENCH= 9ba35b45d3c5bc2de5bf2217a9a677d5
RANDOM SEED=1890036275

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:      24571620 kB
Buffers:        266716 kB
Cached:        7784464 kB
SwapCached:        640 kB
Active:        4772392 kB
Inactive:      3350784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      24571620 kB
SwapTotal:    67111528 kB
SwapFree:     67110456 kB
Dirty:            7800 kB
Writeback:           0 kB
AnonPages:       71676 kB
Mapped:          15400 kB
Slab:           192952 kB
PageTables:       5684 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3215400 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 20:42:30