Trace number 3095638

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 0.930857 0.931593

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S1114532273-035.SATISFIABLE.cnf
MD5SUMff7e731e0657a2728f5ff73a4fd8bb2e
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 

0.89/0.93	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.89/0.93	c input CNF file=HOME/instance-3095638-1301754415.cnf 
0.89/0.93	c Clause#=2343  var#=550  ratio=4 
0.89/0.93	c Simplified clause#=2343 
0.89/0.93	c XOR_varElimination deleted var#=1 clauses#=2316 
0.89/0.93	c inative var#=0 
0.89/0.93	c free var#=534  
0.89/0.93	c local search on 
0.89/0.93	c A solution found by local search 
0.89/0.93	c unfixed var#=12 var#=550 
0.89/0.93	c verified 
0.89/0.93	c 
0.89/0.93	s SATISFIABLE
0.89/0.93	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 -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 -247 248 249 251 -252 -253 254 -255 -256 -257 258 259 -260 -261 262 263 -264 -265 -266 267 268 270 -271 272 -273 274 275 -276 -277 -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 -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 -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 
0.89/0.93	v 0
0.89/0.93	c 
0.89/0.93	c  Running time=0.928858

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-3095638-1301754415/watcher-3095638-1301754415 -o /tmp/evaluation-result-3095638-1301754415/solver-3095638-1301754415 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3095638-1301754415.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: 4.02 4.01 3.95 4/189 24410
/proc/meminfo: memFree=23089960/32951124 swapFree=67111524/67111528
[pid=24410] ppid=24408 vsize=3240 CPUtime=0 cores=1,3
/proc/24410/stat : 24410 (MPhaseSAT_M) R 24408 24410 23452 0 -1 4202496 381 0 0 0 0 0 0 0 25 0 1 0 287039445 3317760 319 33554432000 134512640 134829744 4288023440 18446744073709551615 134541365 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24410/statm: 810 319 238 78 0 96 0

[startup+0.0255251 s]
/proc/loadavg: 4.02 4.01 3.95 4/189 24410
/proc/meminfo: memFree=23089960/32951124 swapFree=67111524/67111528
[pid=24410] ppid=24408 vsize=3672 CPUtime=0.02 cores=1,3
/proc/24410/stat : 24410 (MPhaseSAT_M) R 24408 24410 23452 0 -1 4202496 497 0 0 0 2 0 0 0 25 0 1 0 287039445 3760128 435 33554432000 134512640 134829744 4288023440 18446744073709551615 134678283 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24410/statm: 918 435 271 78 0 204 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3672

[startup+0.100514 s]
/proc/loadavg: 4.02 4.01 3.95 4/189 24410
/proc/meminfo: memFree=23089960/32951124 swapFree=67111524/67111528
[pid=24410] ppid=24408 vsize=3804 CPUtime=0.09 cores=1,3
/proc/24410/stat : 24410 (MPhaseSAT_M) R 24408 24410 23452 0 -1 4202496 552 0 0 0 9 0 0 0 25 0 1 0 287039445 3895296 490 33554432000 134512640 134829744 4288023440 18446744073709551615 12535748 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24410/statm: 951 490 271 78 0 237 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3804

[startup+0.300476 s]
/proc/loadavg: 4.02 4.01 3.95 4/189 24410
/proc/meminfo: memFree=23089960/32951124 swapFree=67111524/67111528
[pid=24410] ppid=24408 vsize=4068 CPUtime=0.29 cores=1,3
/proc/24410/stat : 24410 (MPhaseSAT_M) R 24408 24410 23452 0 -1 4202496 601 0 0 0 29 0 0 0 25 0 1 0 287039445 4165632 539 33554432000 134512640 134829744 4288023440 18446744073709551615 134614879 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24410/statm: 1017 539 271 78 0 303 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4068

[startup+0.700408 s]
/proc/loadavg: 4.02 4.01 3.95 4/189 24410
/proc/meminfo: memFree=23089960/32951124 swapFree=67111524/67111528
[pid=24410] ppid=24408 vsize=4464 CPUtime=0.69 cores=1,3
/proc/24410/stat : 24410 (MPhaseSAT_M) R 24408 24410 23452 0 -1 4202496 695 0 0 0 69 0 0 0 25 0 1 0 287039445 4571136 633 33554432000 134512640 134829744 4288023440 18446744073709551615 134661632 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24410/statm: 1116 633 271 78 0 402 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4464

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

[startup+0.900374 s]
/proc/loadavg: 4.02 4.01 3.95 4/189 24410
/proc/meminfo: memFree=23089960/32951124 swapFree=67111524/67111528
[pid=24410] ppid=24408 vsize=4596 CPUtime=0.89 cores=1,3
/proc/24410/stat : 24410 (MPhaseSAT_M) R 24408 24410 23452 0 -1 4202496 742 0 0 0 89 0 0 0 25 0 1 0 287039445 4706304 680 33554432000 134512640 134829744 4288023440 18446744073709551615 134606576 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/24410/statm: 1149 680 274 78 0 435 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4596

Child status: 10
Real time (s): 0.931593
CPU time (s): 0.930857
CPU user time (s): 0.928858
CPU system time (s): 0.001999
CPU usage (%): 99.921
Max. virtual memory (cumulated for all children) (KiB): 4596

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.928858
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= 752
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= 13

runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node136 at 2011-04-02 16:26:55
IDJOB=3095638
IDBENCH=82920
IDSOLVER=1522
FILE ID=node136/3095638-1301754415
RUNJOBID= node136-1301748578-23472
PBS_JOBID= 12841001
Free space on /tmp= 71508 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1114532273-035.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095638-1301754415/watcher-3095638-1301754415 -o /tmp/evaluation-result-3095638-1301754415/solver-3095638-1301754415 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3095638-1301754415.cnf

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

MD5SUM BENCH= ff7e731e0657a2728f5ff73a4fd8bb2e
RANDOM SEED=221526824

node136.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	: 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		: 2666.809
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	: 5332.75
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		: 2666.809
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	: 5332.76
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	: 5332.75
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		: 2666.809
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	: 5332.83
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		: 2666.809
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	: 5332.75
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		: 2666.809
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      23089968 kB
Buffers:        311536 kB
Cached:        9139112 kB
SwapCached:          4 kB
Active:        4330300 kB
Inactive:      5265680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      23089968 kB
SwapTotal:    67111528 kB
SwapFree:     67111524 kB
Dirty:             392 kB
Writeback:           0 kB
AnonPages:      145884 kB
Mapped:          17012 kB
Slab:           200880 kB
PageTables:       5424 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   343640 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= 71508 MiB
End job on node136 at 2011-04-02 16:26:56