Trace number 3153942

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 0.101984 0.105588

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S840902310-084.SATISFIABLE.cnf
MD5SUM02c45b007aaa35525677ccadd4298d97
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2130
Sum of the clauses size6390
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32130
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.10	c 0 clauses are redundant and removed
0.09/0.10	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.09/0.10	c 0 vars are fixed and 0 clauses are removed after lookahead
0.09/0.10	c initial seed is 1885950091
0.09/0.10	c try=1 flip j=220463 walk=191073 seed 1885950108
0.09/0.10	c A solution is found
0.09/0.10	s SATISFIABLE
0.09/0.10	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 
0.09/0.10	v 0 
0.09/0.10	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-3153942-1301684929/watcher-3153942-1301684929 -o /tmp/evaluation-result-3153942-1301684929/solver-3153942-1301684929 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153942-1301684929.cnf 1885946634 

running on 2 cores: 1,3

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: 0.94 1.93 2.97 5/185 5106
/proc/meminfo: memFree=21889372/32950928 swapFree=67111528/67111528
[pid=5106] ppid=5104 vsize=1185584 CPUtime=0 cores=1,3
/proc/5106/stat : 5106 (sattime2011) R 5104 5106 4044 0 -1 4202496 295 0 0 0 0 0 0 0 24 0 1 0 280091662 1214038016 237 33554432000 4194304 4230460 140736915130528 18446744073709551615 235594527429 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/5106/statm: 296396 241 117 9 0 293553 0

[startup+0.035621 s]
/proc/loadavg: 0.94 1.93 2.97 5/185 5106
/proc/meminfo: memFree=21889372/32950928 swapFree=67111528/67111528
[pid=5106] ppid=5104 vsize=1185716 CPUtime=0.03 cores=1,3
/proc/5106/stat : 5106 (sattime2011) R 5104 5106 4044 0 -1 4202496 370 0 0 0 3 0 0 0 24 0 1 0 280091662 1214173184 311 33554432000 4194304 4230460 140736915130528 18446744073709551615 4217192 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/5106/statm: 296429 311 117 9 0 293586 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1185716

[startup+0.100605 s]
/proc/loadavg: 0.94 1.93 2.97 5/185 5106
/proc/meminfo: memFree=21889372/32950928 swapFree=67111528/67111528
[pid=5106] ppid=5104 vsize=1185716 CPUtime=0.09 cores=1,3
/proc/5106/stat : 5106 (sattime2011) R 5104 5106 4044 0 -1 4202496 370 0 0 0 9 0 0 0 24 0 1 0 280091662 1214173184 311 33554432000 4194304 4230460 140736915130528 18446744073709551615 4199918 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/5106/statm: 296429 311 117 9 0 293586 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185716

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

Child status: 10
Real time (s): 0.105588
CPU time (s): 0.101984
CPU user time (s): 0.101984
CPU system time (s): 0
CPU usage (%): 96.5867
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.101984
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= 374
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= 3

runsolver used 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node120 at 2011-04-01 21:08:49
IDJOB=3153942
IDBENCH=83049
IDSOLVER=1563
FILE ID=node120/3153942-1301684929
RUNJOBID= node120-1301684929-5075
PBS_JOBID= 12840577
Free space on /tmp= 71276 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S840902310-084.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153942-1301684929/watcher-3153942-1301684929 -o /tmp/evaluation-result-3153942-1301684929/solver-3153942-1301684929 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153942-1301684929.cnf 1885946634

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

MD5SUM BENCH= 02c45b007aaa35525677ccadd4298d97
RANDOM SEED=1885946634

node120.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		: 2666.809
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	: 5333.61
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		: 2666.809
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	: 5226.07
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.78
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		: 2666.809
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		: 2666.809
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		: 2666.809
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:     32950928 kB
MemFree:      21889660 kB
Buffers:        344136 kB
Cached:       10373660 kB
SwapCached:          0 kB
Active:        7500020 kB
Inactive:      3282404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      21889660 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           23672 kB
Writeback:           0 kB
AnonPages:       64344 kB
Mapped:          15208 kB
Slab:           215004 kB
PageTables:       5104 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  2593624 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= 71260 MiB
End job on node120 at 2011-04-01 21:08:49