Trace number 3153698

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 0.010997 0.011287

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S874954918-011.SATISFIABLE.cnf
MD5SUMae4fafbcf9d01d37f14a04dc4a1c7430
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
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 

0.00/0.01	c 0 clauses are redundant and removed
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.01	c initial seed is 1381064952
0.00/0.01	c try=1 flip j=12164 walk=10523 seed 1381064969
0.00/0.01	c A solution is found
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 -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 
0.00/0.01	v 0 
0.00/0.01	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-3153698-1301681926/watcher-3153698-1301681926 -o /tmp/evaluation-result-3153698-1301681926/solver-3153698-1301681926 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153698-1301681926.cnf 1381061495 

running on 2 cores: 4,6

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 4.01 3.91 4/189 23344
/proc/meminfo: memFree=19730692/32950940 swapFree=67111528/67111528
[pid=23344] ppid=23342 vsize=1185716 CPUtime=0 cores=4,6
/proc/23344/stat : 23344 (sattime2011) R 23342 23344 22785 0 -1 4202496 382 0 0 0 0 0 0 0 25 0 1 0 358423383 1214173184 323 33554432000 4194304 4230460 140736438966032 18446744073709551615 4224190 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/23344/statm: 296429 323 117 9 0 293586 0

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

Child status: 10
Real time (s): 0.011287
CPU time (s): 0.010997
CPU user time (s): 0.009998
CPU system time (s): 0.000999
CPU usage (%): 97.431
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.009998
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= 386
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 0.005999 second system time

The end

Launcher Data 

Begin job on node117 at 2011-04-01 20:18:46
IDJOB=3153698
IDBENCH=82805
IDSOLVER=1563
FILE ID=node117/3153698-1301681926
RUNJOBID= node117-1301678139-22804
PBS_JOBID= 12840580
Free space on /tmp= 70936 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S874954918-011.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153698-1301681926/watcher-3153698-1301681926 -o /tmp/evaluation-result-3153698-1301681926/solver-3153698-1301681926 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153698-1301681926.cnf 1381061495

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

MD5SUM BENCH= ae4fafbcf9d01d37f14a04dc4a1c7430
RANDOM SEED=1381061495

node117.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		: 2666.849
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	: 5333.69
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		: 2666.849
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		: 2666.849
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		: 2666.849
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		: 2666.849
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	: 5332.75
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		: 2666.849
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	: 5332.74
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		: 2666.849
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		: 2666.849
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	: 5267.44
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950940 kB
MemFree:      19730856 kB
Buffers:        377092 kB
Cached:       12470008 kB
SwapCached:          0 kB
Active:        8191436 kB
Inactive:      4725868 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950940 kB
LowFree:      19730856 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7852 kB
Writeback:           0 kB
AnonPages:       70420 kB
Mapped:          15360 kB
Slab:           237152 kB
PageTables:       5852 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586996 kB
Committed_AS:  3799064 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= 70932 MiB
End job on node117 at 2011-04-01 20:18:46