Trace number 3153950

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 0.020996 0.0227209

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S1940049314-069.SATISFIABLE.cnf
MD5SUMc3d1d9237da00564d672945308bcff7c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010998
Satisfiable
(Un)Satisfiability was proved
Number of variables550
Number of clauses2343
Sum of the clauses size7029
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32343
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.02	c 0 clauses are redundant and removed
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.02	c initial seed is 1954137390
0.00/0.02	c try=1 flip j=34956 walk=30603 seed 1954137407
0.00/0.02	c A solution is found
0.00/0.02	s SATISFIABLE
0.00/0.02	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 
0.00/0.02	v 0 
0.00/0.02	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-3153950-1301685070/watcher-3153950-1301685070 -o /tmp/evaluation-result-3153950-1301685070/solver-3153950-1301685070 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153950-1301685070.cnf 1954133933 

running on 2 cores: 5,7

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: 1.12 2.46 3.30 4/179 2491
/proc/meminfo: memFree=24573128/32951124 swapFree=67110456/67111528
[pid=2491] ppid=2486 vsize=1185580 CPUtime=0 cores=5,7
/proc/2491/stat : 2491 (sattime2011) R 2486 2491 1415 0 -1 4202496 277 0 0 0 0 0 0 0 23 0 1 0 358737697 1214033920 218 33554432000 4194304 4230460 140736462375024 18446744073709551615 4207756 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/2491/statm: 296395 218 103 9 0 293552 0

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

Child status: 10
Real time (s): 0.0227209
CPU time (s): 0.020996
CPU user time (s): 0.020996
CPU system time (s): 0
CPU usage (%): 92.4081
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.020996
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= 38
involuntary context switches= 0

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-01 21:11:10
IDJOB=3153950
IDBENCH=83057
IDSOLVER=1563
FILE ID=node118/3153950-1301685070
RUNJOBID= node118-1301685070-2463
PBS_JOBID= 12840579
Free space on /tmp= 71028 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1940049314-069.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153950-1301685070/watcher-3153950-1301685070 -o /tmp/evaluation-result-3153950-1301685070/solver-3153950-1301685070 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153950-1301685070.cnf 1954133933

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

MD5SUM BENCH= c3d1d9237da00564d672945308bcff7c
RANDOM SEED=1954133933

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:      24575184 kB
Buffers:        267832 kB
Cached:        7787732 kB
SwapCached:        640 kB
Active:        4759136 kB
Inactive:      3360096 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      24575184 kB
SwapTotal:    67111528 kB
SwapFree:     67110456 kB
Dirty:           27220 kB
Writeback:           0 kB
AnonPages:       62300 kB
Mapped:          14704 kB
Slab:           193652 kB
PageTables:       4752 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   190872 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 21:11:10