Trace number 3375267

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 0.785879 0.78645

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 

0.69/0.78	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.69/0.78	c input CNF file=HOME/instance-3375267-1305449986.cnf 
0.69/0.78	c Clause#=2343  var#=550  ratio=4 
0.69/0.78	c Simplified clause#=2343 
0.69/0.78	c XOR_varElimination deleted var#=0 clauses#=2332 
0.69/0.78	c inative var#=0 
0.69/0.78	c free var#=536  
0.69/0.78	c local search on 
0.69/0.78	c A solution found by local search 
0.69/0.78	c unfixed var#=12 var#=550 
0.69/0.78	c verified 
0.69/0.78	c 
0.69/0.78	s SATISFIABLE
0.69/0.78	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 -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 -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 -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 
0.69/0.78	v 0
0.69/0.78	c 
0.69/0.78	c  Running time=0.784880

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-3375267-1305449986/watcher-3375267-1305449986 -o /tmp/evaluation-result-3375267-1305449986/solver-3375267-1305449986 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375267-1305449986.cnf 

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: 1.80 2.95 3.73 2/363 18216
/proc/meminfo: memFree=18228368/32951124 swapFree=45193364/67111528
[pid=18215] ppid=18213 vsize=12464 CPUtime=0.01 cores=4,6
/proc/18215/stat : 18215 (MPhaseSAT64) R 18213 18215 17657 0 -1 4202496 577 0 0 0 1 0 0 0 22 0 1 0 735229284 12763136 515 33554432000 4194304 4479436 140735575917776 18446744073709551615 224284950423 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/18215/statm: 3116 515 310 70 0 236 0

[startup+0.0371061 s]
/proc/loadavg: 1.80 2.95 3.73 2/363 18216
/proc/meminfo: memFree=18228368/32951124 swapFree=45193364/67111528
[pid=18215] ppid=18213 vsize=12464 CPUtime=0.03 cores=4,6
/proc/18215/stat : 18215 (MPhaseSAT64) R 18213 18215 17657 0 -1 4202496 596 0 0 0 3 0 0 0 22 0 1 0 735229284 12763136 534 33554432000 4194304 4479436 140735575917776 18446744073709551615 4451088 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/18215/statm: 3116 534 324 70 0 236 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 12464

[startup+0.101082 s]
/proc/loadavg: 1.80 2.95 3.73 2/363 18216
/proc/meminfo: memFree=18228368/32951124 swapFree=45193364/67111528
[pid=18215] ppid=18213 vsize=12724 CPUtime=0.09 cores=4,6
/proc/18215/stat : 18215 (MPhaseSAT64) R 18213 18215 17657 0 -1 4202496 665 0 0 0 9 0 0 0 22 0 1 0 735229284 13029376 603 33554432000 4194304 4479436 140735575917776 18446744073709551615 4306813 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/18215/statm: 3181 603 324 70 0 301 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12724

[startup+0.301044 s]
/proc/loadavg: 1.80 2.95 3.73 2/363 18216
/proc/meminfo: memFree=18228368/32951124 swapFree=45193364/67111528
[pid=18215] ppid=18213 vsize=13700 CPUtime=0.29 cores=4,6
/proc/18215/stat : 18215 (MPhaseSAT64) R 18213 18215 17657 0 -1 4202496 910 0 0 0 29 0 0 0 23 0 1 0 735229284 14028800 848 33554432000 4194304 4479436 140735575917776 18446744073709551615 4451020 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/18215/statm: 3425 848 325 70 0 545 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13700

[startup+0.701007 s]
/proc/loadavg: 1.80 2.95 3.73 2/363 18216
/proc/meminfo: memFree=18228368/32951124 swapFree=45193364/67111528
[pid=18215] ppid=18213 vsize=14476 CPUtime=0.69 cores=4,6
/proc/18215/stat : 18215 (MPhaseSAT64) R 18213 18215 17657 0 -1 4202496 1168 0 0 0 69 0 0 0 25 0 1 0 735229284 14823424 1042 33554432000 4194304 4479436 140735575917776 18446744073709551615 4452031 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/18215/statm: 3619 1042 325 70 0 739 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14476

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

Child status: 10
Real time (s): 0.78645
CPU time (s): 0.785879
CPU user time (s): 0.78388
CPU system time (s): 0.001999
CPU usage (%): 99.9274
Max. virtual memory (cumulated for all children) (KiB): 14604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.78388
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= 1182
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= 22
involuntary context switches= 2

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node118 at 2011-05-15 10:59:46
IDJOB=3375267
IDBENCH=82976
IDSOLVER=1855
FILE ID=node118/3375267-1305449986
RUNJOBID= node118-1305449986-18200
PBS_JOBID= 13324868
Free space on /tmp= 73328 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S927210717-059.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375267-1305449986/watcher-3375267-1305449986 -o /tmp/evaluation-result-3375267-1305449986/solver-3375267-1305449986 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375267-1305449986.cnf

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

MD5SUM BENCH= 7954e0b477e9d5cbd0a1f159f4b0eef6
RANDOM SEED=900760082

node118.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		: 2666.842
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	: 5333.68
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		: 2666.842
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5332.68
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      18228036 kB
Buffers:        288780 kB
Cached:        4435284 kB
SwapCached:      22084 kB
Active:       11789876 kB
Inactive:      2630048 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      18228036 kB
SwapTotal:    67111528 kB
SwapFree:     45193364 kB
Dirty:             528 kB
Writeback:           0 kB
AnonPages:     9687012 kB
Mapped:          14616 kB
Slab:           147696 kB
PageTables:      90384 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 88637584 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= 73328 MiB
End job on node118 at 2011-05-15 10:59:47