Trace number 3157261

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
shortsattime2011 2011-03-02SAT 0.034994 0.0369101

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S927210717-059.SATISFIABLE.cnf
MD5SUM7954e0b477e9d5cbd0a1f159f4b0eef6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
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 

0.00/0.03	c 0 clauses are redundant and removed
0.00/0.03	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.03	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.03	c initial seed is 800275653
0.00/0.03	c try=1 flip j=64981 walk=56427 seed 800275670
0.00/0.03	c A solution is found
0.00/0.03	s SATISFIABLE
0.00/0.03	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 
0.00/0.03	v 0 
0.00/0.03	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-3157261-1301683629/watcher-3157261-1301683629 -o /tmp/evaluation-result-3157261-1301683629/solver-3157261-1301683629 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157261-1301683629.cnf 800268866 

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: 3.95 4.00 3.96 5/189 15178
/proc/meminfo: memFree=21804504/32951124 swapFree=67111528/67111528
[pid=15178] ppid=15176 vsize=1185716 CPUtime=0 cores=4,6
/proc/15178/stat : 15178 (shortsattime201) R 15176 15178 14026 0 -1 4202496 383 0 0 0 0 0 0 0 25 0 1 0 279960889 1214173184 323 33554432000 4194304 4230460 140735052291456 18446744073709551615 4218358 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/15178/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): 0.0369101
CPU time (s): 0.034994
CPU user time (s): 0.034994
CPU system time (s): 0
CPU usage (%): 94.8088
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.034994
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= 1

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node138 at 2011-04-01 20:47:09
IDJOB=3157261
IDBENCH=82976
IDSOLVER=1566
FILE ID=node138/3157261-1301683629
RUNJOBID= node138-1301678136-14045
PBS_JOBID= 12840560
Free space on /tmp= 71700 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S927210717-059.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157261-1301683629/watcher-3157261-1301683629 -o /tmp/evaluation-result-3157261-1301683629/solver-3157261-1301683629 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157261-1301683629.cnf 800268866

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

MD5SUM BENCH= 7954e0b477e9d5cbd0a1f159f4b0eef6
RANDOM SEED=800268866

node138.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		: 2666.854
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	: 5333.70
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		: 2666.854
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		: 2666.854
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	: 5332.82
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		: 2666.854
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		: 2666.854
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	: 5332.80
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		: 2666.854
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		: 2666.854
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	: 5332.82
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		: 2666.854
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21804784 kB
Buffers:        343640 kB
Cached:       10471352 kB
SwapCached:          0 kB
Active:        7455444 kB
Inactive:      3430668 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21804784 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           15572 kB
Writeback:           0 kB
AnonPages:       70512 kB
Mapped:          15288 kB
Slab:           195844 kB
PageTables:       5440 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3798548 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= 71692 MiB
End job on node138 at 2011-04-01 20:47:09