Trace number 3375227

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
MPhaseSAT64 2011-05-14 (fixed)SAT 0.889864 0.88953

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S1552308135-080.SATISFIABLE.cnf
MD5SUMbaa799a188281e763705191e4b9d6531
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
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 

0.79/0.88	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.79/0.88	c input CNF file=HOME/instance-3375227-1305449887.cnf 
0.79/0.88	c Clause#=2343  var#=550  ratio=4 
0.79/0.88	c Simplified clause#=2343 
0.79/0.88	c XOR_varElimination deleted var#=0 clauses#=2337 
0.79/0.88	c inative var#=0 
0.79/0.88	c free var#=534  
0.79/0.88	c local search on 
0.79/0.88	c A solution found by local search 
0.79/0.88	c unfixed var#=15 var#=550 
0.79/0.88	c verified 
0.79/0.88	c 
0.79/0.88	s SATISFIABLE
0.79/0.88	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 -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 -397 399 401 -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 -491 493 494 -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 
0.79/0.88	v 0
0.79/0.88	c 
0.79/0.88	c  Running time=0.886866

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3375227-1305449887/watcher-3375227-1305449887 -o /tmp/evaluation-result-3375227-1305449887/solver-3375227-1305449887 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375227-1305449887.cnf 

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: 1.41 2.19 3.21 5/323 20668
/proc/meminfo: memFree=22791680/32951124 swapFree=59305796/67111528
[pid=20667] ppid=20664 vsize=12280 CPUtime=0 cores=1,3
/proc/20667/stat : 20667 (MPhaseSAT64) R 20664 20667 19943 0 -1 4202496 441 0 0 0 0 0 0 0 18 0 1 0 735219211 12574720 380 33554432000 4194304 4479436 140733555716912 18446744073709551615 252457727009 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20667/statm: 3070 380 282 70 0 190 0

[startup+0.10758 s]
/proc/loadavg: 1.41 2.19 3.21 5/323 20668
/proc/meminfo: memFree=22791680/32951124 swapFree=59305796/67111528
[pid=20667] ppid=20664 vsize=12924 CPUtime=0.1 cores=1,3
/proc/20667/stat : 20667 (MPhaseSAT64) R 20664 20667 19943 0 -1 4202496 698 0 0 0 10 0 0 0 18 0 1 0 735219211 13234176 636 33554432000 4194304 4479436 140733555716912 18446744073709551615 4380302 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20667/statm: 3231 636 324 70 0 351 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 12924

[startup+0.200573 s]
/proc/loadavg: 1.41 2.19 3.21 5/323 20668
/proc/meminfo: memFree=22791680/32951124 swapFree=59305796/67111528
[pid=20667] ppid=20664 vsize=13372 CPUtime=0.19 cores=1,3
/proc/20667/stat : 20667 (MPhaseSAT64) R 20664 20667 19943 0 -1 4202496 827 0 0 0 19 0 0 0 18 0 1 0 735219211 13692928 765 33554432000 4194304 4479436 140733555716912 18446744073709551615 4450979 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20667/statm: 3343 765 325 70 0 463 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 13372

[startup+0.300554 s]
/proc/loadavg: 1.41 2.19 3.21 5/323 20668
/proc/meminfo: memFree=22791680/32951124 swapFree=59305796/67111528
[pid=20667] ppid=20664 vsize=13768 CPUtime=0.29 cores=1,3
/proc/20667/stat : 20667 (MPhaseSAT64) R 20664 20667 19943 0 -1 4202496 926 0 0 0 29 0 0 0 18 0 1 0 735219211 14098432 864 33554432000 4194304 4479436 140733555716912 18446744073709551615 4451008 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20667/statm: 3442 864 325 70 0 562 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13768

[startup+0.70048 s]
/proc/loadavg: 1.41 2.19 3.21 5/323 20668
/proc/meminfo: memFree=22791680/32951124 swapFree=59305796/67111528
[pid=20667] ppid=20664 vsize=14548 CPUtime=0.69 cores=1,3
/proc/20667/stat : 20667 (MPhaseSAT64) R 20664 20667 19943 0 -1 4202496 1249 0 0 0 69 0 0 0 18 0 1 0 735219211 14897152 1059 33554432000 4194304 4479436 140733555716912 18446744073709551615 4451078 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20667/statm: 3637 1059 325 70 0 757 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14548

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

[startup+0.80045 s]
/proc/loadavg: 1.41 2.19 3.21 5/323 20668
/proc/meminfo: memFree=22791680/32951124 swapFree=59305796/67111528
[pid=20667] ppid=20664 vsize=14548 CPUtime=0.79 cores=1,3
/proc/20667/stat : 20667 (MPhaseSAT64) R 20664 20667 19943 0 -1 4202496 1254 0 0 0 79 0 0 0 18 0 1 0 735219211 14897152 1064 33554432000 4194304 4479436 140733555716912 18446744073709551615 4297351 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/20667/statm: 3637 1064 328 70 0 757 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 14548

Child status: 10
Real time (s): 0.88953
CPU time (s): 0.889864
CPU user time (s): 0.887865
CPU system time (s): 0.001999
CPU usage (%): 100.038
Max. virtual memory (cumulated for all children) (KiB): 14548

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.887865
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1263
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= 8
involuntary context switches= 2

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node111 at 2011-05-15 10:58:07
IDJOB=3375227
IDBENCH=82936
IDSOLVER=1855
FILE ID=node111/3375227-1305449887
RUNJOBID= node111-1305449883-20436
PBS_JOBID= 13324865
Free space on /tmp= 73732 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1552308135-080.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375227-1305449887/watcher-3375227-1305449887 -o /tmp/evaluation-result-3375227-1305449887/solver-3375227-1305449887 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375227-1305449887.cnf

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

MD5SUM BENCH= baa799a188281e763705191e4b9d6531
RANDOM SEED=564606470

node111.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	: 5428.12
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	: 5332.75
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	: 5332.86
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	: 5332.83
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		: 2666.849
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	: 5332.67
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	: 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:      22791364 kB
Buffers:        279292 kB
Cached:        6623384 kB
SwapCached:      13720 kB
Active:        1000620 kB
Inactive:      8940612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22791364 kB
SwapTotal:    67111528 kB
SwapFree:     59305796 kB
Dirty:            1320 kB
Writeback:           0 kB
AnonPages:     3034136 kB
Mapped:          13880 kB
Slab:           118316 kB
PageTables:      36692 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 53386556 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= 73732 MiB
End job on node111 at 2011-05-15 10:58:08