Trace number 3221474

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
MPhaseSAT_M 2011-02-16SAT 0.871866 0.872203

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S1563258922-027.SATISFIABLE.cnf
MD5SUMd76256d9362323e592886dee80dd4554
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
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 

0.79/0.87	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.79/0.87	c input CNF file=HOME/instance-3221474-1303294744.cnf 
0.79/0.87	c Clause#=2130  var#=500  ratio=4 
0.79/0.87	c Simplified clause#=2130 
0.79/0.87	c XOR_varElimination deleted var#=0 clauses#=2130 
0.79/0.87	c inative var#=0 
0.79/0.87	c free var#=484  
0.79/0.87	c local search on 
0.79/0.87	c A solution found by local search 
0.79/0.87	c unfixed var#=16 var#=500 
0.79/0.87	c verified 
0.79/0.87	c 
0.79/0.87	s SATISFIABLE
0.79/0.87	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 -183 185 -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 -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 -482 483 484 485 486 487 488 490 491 492 493 494 495 496 -497 -498 -499 500 
0.79/0.87	v 0
0.79/0.87	c 
0.79/0.87	c  Running time=0.869868

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3221474-1303294744/watcher-3221474-1303294744 -o /tmp/evaluation-result-3221474-1303294744/solver-3221474-1303294744 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221474-1303294744.cnf 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.97 1.97 1.99 2/177 24048
/proc/meminfo: memFree=18152132/32950928 swapFree=67111528/67111528
[pid=24048] ppid=24046 vsize=3232 CPUtime=0 cores=1,3,5,7
/proc/24048/stat : 24048 (MPhaseSAT_M) R 24046 24048 22903 0 -1 4202496 377 0 0 0 0 0 0 0 25 0 1 0 441074077 3309568 317 33554432000 134512640 134829744 4290105728 18446744073709551615 134541365 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24048/statm: 808 317 238 78 0 94 0

[startup+0.096235 s]
/proc/loadavg: 1.97 1.97 1.99 2/177 24048
/proc/meminfo: memFree=18152132/32950928 swapFree=67111528/67111528
[pid=24048] ppid=24046 vsize=3780 CPUtime=0.09 cores=1,3,5,7
/proc/24048/stat : 24048 (MPhaseSAT_M) R 24046 24048 22903 0 -1 4202496 520 0 0 0 9 0 0 0 25 0 1 0 441074077 3870720 460 33554432000 134512640 134829744 4290105728 18446744073709551615 134661368 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24048/statm: 945 460 270 78 0 231 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3780

[startup+0.100235 s]
/proc/loadavg: 1.97 1.97 1.99 2/177 24048
/proc/meminfo: memFree=18152132/32950928 swapFree=67111528/67111528
[pid=24048] ppid=24046 vsize=3780 CPUtime=0.09 cores=1,3,5,7
/proc/24048/stat : 24048 (MPhaseSAT_M) R 24046 24048 22903 0 -1 4202496 520 0 0 0 9 0 0 0 25 0 1 0 441074077 3870720 460 33554432000 134512640 134829744 4290105728 18446744073709551615 12384220 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24048/statm: 945 460 270 78 0 231 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3780

[startup+0.300199 s]
/proc/loadavg: 1.97 1.97 1.99 2/177 24048
/proc/meminfo: memFree=18152132/32950928 swapFree=67111528/67111528
[pid=24048] ppid=24046 vsize=3912 CPUtime=0.29 cores=1,3,5,7
/proc/24048/stat : 24048 (MPhaseSAT_M) R 24046 24048 22903 0 -1 4202496 577 0 0 0 29 0 0 0 25 0 1 0 441074077 4005888 517 33554432000 134512640 134829744 4290105728 18446744073709551615 134661352 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24048/statm: 978 517 270 78 0 264 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3912

[startup+0.700128 s]
/proc/loadavg: 1.97 1.97 1.99 2/177 24048
/proc/meminfo: memFree=18152132/32950928 swapFree=67111528/67111528
[pid=24048] ppid=24046 vsize=4176 CPUtime=0.69 cores=1,3,5,7
/proc/24048/stat : 24048 (MPhaseSAT_M) R 24046 24048 22903 0 -1 4202496 650 0 0 0 69 0 0 0 25 0 1 0 441074077 4276224 590 33554432000 134512640 134829744 4290105728 18446744073709551615 134712963 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24048/statm: 1044 590 270 78 0 330 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4176

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

[startup+0.800111 s]
/proc/loadavg: 1.97 1.97 1.99 2/177 24048
/proc/meminfo: memFree=18152132/32950928 swapFree=67111528/67111528
[pid=24048] ppid=24046 vsize=4308 CPUtime=0.79 cores=1,3,5,7
/proc/24048/stat : 24048 (MPhaseSAT_M) R 24046 24048 22903 0 -1 4202496 662 0 0 0 79 0 0 0 25 0 1 0 441074077 4411392 602 33554432000 134512640 134829744 4290105728 18446744073709551615 134658118 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24048/statm: 1077 602 270 78 0 363 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4308

Child status: 10
Real time (s): 0.872203
CPU time (s): 0.871866
CPU user time (s): 0.870867
CPU system time (s): 0.000999
CPU usage (%): 99.9614
Max. virtual memory (cumulated for all children) (KiB): 4308

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.870867
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= 710
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= 6
involuntary context switches= 10

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node125 at 2011-04-20 12:19:04
IDJOB=3221474
IDBENCH=82929
IDSOLVER=1637
FILE ID=node125/3221474-1303294744
RUNJOBID= node125-1303279577-22922
PBS_JOBID= 13049533
Free space on /tmp= 72424 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S1563258922-027.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221474-1303294744/watcher-3221474-1303294744 -o /tmp/evaluation-result-3221474-1303294744/solver-3221474-1303294744 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221474-1303294744.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= d76256d9362323e592886dee80dd4554
RANDOM SEED=313092399

node125.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		: 2666.828
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	: 5333.65
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		: 2666.828
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	: 5266.55
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		: 2666.828
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	: 5332.84
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		: 2666.828
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	: 5332.74
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		: 2666.828
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	: 5332.82
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		: 2666.828
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		: 2666.828
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		: 2666.828
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:      18152412 kB
Buffers:        706032 kB
Cached:       13678712 kB
SwapCached:          0 kB
Active:        6294276 kB
Inactive:      8156836 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      18152412 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             424 kB
Writeback:           0 kB
AnonPages:       66356 kB
Mapped:          16400 kB
Slab:           284680 kB
PageTables:       4684 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   209664 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= 72424 MiB
End job on node125 at 2011-04-20 12:19:05