Trace number 3157334

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 0.212967 0.21309

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 

0.20/0.21	c 0 clauses are redundant and removed
0.20/0.21	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.20/0.21	c 0 vars are fixed and 0 clauses are removed after lookahead
0.20/0.21	c initial seed is 1797759657
0.20/0.21	c try=1 flip j=429765 walk=372556 seed 1797759674
0.20/0.21	c A solution is found
0.20/0.21	s SATISFIABLE
0.20/0.21	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 
0.20/0.21	v 0 
0.20/0.21	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-3157334-1301684918/watcher-3157334-1301684918 -o /tmp/evaluation-result-3157334-1301684918/solver-3157334-1301684918 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157334-1301684918.cnf 1797752870 

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: 4.04 4.01 3.93 4/189 6136
/proc/meminfo: memFree=22382484/32951124 swapFree=67111528/67111528
[pid=6136] ppid=6134 vsize=1185716 CPUtime=0 cores=0,2
/proc/6136/stat : 6136 (shortsattime201) R 6134 6136 5038 0 -1 4202496 371 0 0 0 0 0 0 0 25 0 1 0 260907413 1214173184 311 33554432000 4194304 4230460 140736736237056 18446744073709551615 4200562 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6136/statm: 296429 311 117 9 0 293586 0

[startup+0.00867911 s]
/proc/loadavg: 4.04 4.01 3.93 4/189 6136
/proc/meminfo: memFree=22382484/32951124 swapFree=67111528/67111528
[pid=6136] ppid=6134 vsize=1185716 CPUtime=0 cores=0,2
/proc/6136/stat : 6136 (shortsattime201) R 6134 6136 5038 0 -1 4202496 371 0 0 0 0 0 0 0 25 0 1 0 260907413 1214173184 311 33554432000 4194304 4230460 140736736237056 18446744073709551615 4221066 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6136/statm: 296429 311 117 9 0 293586 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1185716

[startup+0.100723 s]
/proc/loadavg: 4.04 4.01 3.93 4/189 6136
/proc/meminfo: memFree=22382484/32951124 swapFree=67111528/67111528
[pid=6136] ppid=6134 vsize=1185716 CPUtime=0.1 cores=0,2
/proc/6136/stat : 6136 (shortsattime201) R 6134 6136 5038 0 -1 4202496 371 0 0 0 10 0 0 0 25 0 1 0 260907413 1214173184 311 33554432000 4194304 4230460 140736736237056 18446744073709551615 4221241 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6136/statm: 296429 311 117 9 0 293586 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1185716

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

[startup+0.20071 s]
/proc/loadavg: 4.04 4.01 3.93 4/189 6136
/proc/meminfo: memFree=22382484/32951124 swapFree=67111528/67111528
[pid=6136] ppid=6134 vsize=1185716 CPUtime=0.2 cores=0,2
/proc/6136/stat : 6136 (shortsattime201) R 6134 6136 5038 0 -1 4202496 371 0 0 0 20 0 0 0 25 0 1 0 260907413 1214173184 311 33554432000 4194304 4230460 140736736237056 18446744073709551615 4219784 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/6136/statm: 296429 311 117 9 0 293586 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 1185716

Child status: 10
Real time (s): 0.21309
CPU time (s): 0.212967
CPU user time (s): 0.212967
CPU system time (s): 0
CPU usage (%): 99.9423
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.212967
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= 375
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 0.004999 second system time

The end

Launcher Data 

Begin job on node143 at 2011-04-01 21:08:38
IDJOB=3157334
IDBENCH=83049
IDSOLVER=1566
FILE ID=node143/3157334-1301684918
RUNJOBID= node143-1301679701-5056
PBS_JOBID= 12840595
Free space on /tmp= 71900 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S840902310-084.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157334-1301684918/watcher-3157334-1301684918 -o /tmp/evaluation-result-3157334-1301684918/solver-3157334-1301684918 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157334-1301684918.cnf 1797752870

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

MD5SUM BENCH= 02c45b007aaa35525677ccadd4298d97
RANDOM SEED=1797752870

node143.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		: 2666.846
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		: 2666.846
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	: 5226.15
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		: 2666.846
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		: 2666.846
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	: 5332.83
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		: 2666.846
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		: 2666.846
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	: 5332.83
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		: 2666.846
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	: 5332.74
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		: 2666.846
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      22382640 kB
Buffers:        343536 kB
Cached:        9895460 kB
SwapCached:          0 kB
Active:        7031084 kB
Inactive:      3276952 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22382640 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           19788 kB
Writeback:           0 kB
AnonPages:       68868 kB
Mapped:          15560 kB
Slab:           196084 kB
PageTables:       5900 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3796824 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= 71896 MiB
End job on node143 at 2011-04-01 21:08:38