Trace number 3375096

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 0.954854 0.954906

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S874954918-011.SATISFIABLE.cnf
MD5SUMae4fafbcf9d01d37f14a04dc4a1c7430
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.010997
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 

0.89/0.95	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.89/0.95	c input CNF file=HOME/instance-3375096-1305449436.cnf 
0.89/0.95	c Clause#=2343  var#=550  ratio=4 
0.89/0.95	c Simplified clause#=2343 
0.89/0.95	c XOR_varElimination deleted var#=1 clauses#=2342 
0.89/0.95	c inative var#=0 
0.89/0.95	c free var#=534  
0.89/0.95	c local search on 
0.89/0.95	c A solution found by local search 
0.89/0.95	c unfixed var#=16 var#=550 
0.89/0.95	c verified 
0.89/0.95	c 
0.89/0.95	s SATISFIABLE
0.89/0.95	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 -88 89 -90 -91 92 -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 -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 
0.89/0.95	v 0
0.89/0.95	c 
0.89/0.95	c  Running time=0.953855

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-3375096-1305449436/watcher-3375096-1305449436 -o /tmp/evaluation-result-3375096-1305449436/solver-3375096-1305449436 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375096-1305449436.cnf 

running on 2 cores: 5,7

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: 3.96 4.01 4.73 4/250 19115
/proc/meminfo: memFree=24170772/32951124 swapFree=61559568/67111528
[pid=19115] ppid=19113 vsize=12280 CPUtime=0 cores=5,7
/proc/19115/stat : 19115 (MPhaseSAT64) R 19113 19115 18686 0 -1 4202496 442 0 0 0 0 0 0 0 25 0 1 0 656544363 12574720 381 33554432000 4194304 4479436 140737044854544 18446744073709551615 4266756 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19115/statm: 3070 381 282 70 0 190 0

[startup+0.0797909 s]
/proc/loadavg: 3.96 4.01 4.73 4/250 19115
/proc/meminfo: memFree=24170772/32951124 swapFree=61559568/67111528
[pid=19115] ppid=19113 vsize=12728 CPUtime=0.07 cores=5,7
/proc/19115/stat : 19115 (MPhaseSAT64) R 19113 19115 18686 0 -1 4202496 659 0 0 0 7 0 0 0 25 0 1 0 656544363 13033472 597 33554432000 4194304 4479436 140737044854544 18446744073709551615 4451909 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19115/statm: 3182 597 324 70 0 302 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 12728

[startup+0.10079 s]
/proc/loadavg: 3.96 4.01 4.73 4/250 19115
/proc/meminfo: memFree=24170772/32951124 swapFree=61559568/67111528
[pid=19115] ppid=19113 vsize=12888 CPUtime=0.09 cores=5,7
/proc/19115/stat : 19115 (MPhaseSAT64) R 19113 19115 18686 0 -1 4202496 672 0 0 0 9 0 0 0 25 0 1 0 656544363 13197312 610 33554432000 4194304 4479436 140737044854544 18446744073709551615 4451114 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19115/statm: 3222 610 324 70 0 342 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12888

[startup+0.300764 s]
/proc/loadavg: 3.96 4.01 4.73 4/250 19115
/proc/meminfo: memFree=24170772/32951124 swapFree=61559568/67111528
[pid=19115] ppid=19113 vsize=13732 CPUtime=0.29 cores=5,7
/proc/19115/stat : 19115 (MPhaseSAT64) R 19113 19115 18686 0 -1 4202496 908 0 0 0 29 0 0 0 25 0 1 0 656544363 14061568 846 33554432000 4194304 4479436 140737044854544 18446744073709551615 4451008 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19115/statm: 3433 846 325 70 0 553 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13732

[startup+0.700679 s]
/proc/loadavg: 3.96 4.01 4.73 4/250 19115
/proc/meminfo: memFree=24170772/32951124 swapFree=61559568/67111528
[pid=19115] ppid=19113 vsize=14768 CPUtime=0.69 cores=5,7
/proc/19115/stat : 19115 (MPhaseSAT64) R 19113 19115 18686 0 -1 4202496 1271 0 0 0 69 0 0 0 25 0 1 0 656544363 15122432 1113 33554432000 4194304 4479436 140737044854544 18446744073709551615 4451967 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19115/statm: 3692 1113 325 70 0 812 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14768

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

[startup+0.900641 s]
/proc/loadavg: 3.96 4.01 4.73 4/250 19115
/proc/meminfo: memFree=24170772/32951124 swapFree=61559568/67111528
[pid=19115] ppid=19113 vsize=14896 CPUtime=0.89 cores=5,7
/proc/19115/stat : 19115 (MPhaseSAT64) R 19113 19115 18686 0 -1 4202496 1309 0 0 0 89 0 0 0 25 0 1 0 656544363 15253504 1151 33554432000 4194304 4479436 140737044854544 18446744073709551615 4295570 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/19115/statm: 3724 1151 328 70 0 844 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 14896

Child status: 10
Real time (s): 0.954906
CPU time (s): 0.954854
CPU user time (s): 0.952855
CPU system time (s): 0.001999
CPU usage (%): 99.9946
Max. virtual memory (cumulated for all children) (KiB): 14896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.952855
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= 1318
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= 4
involuntary context switches= 2

runsolver used 0.006998 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node109 at 2011-05-15 10:50:36
IDJOB=3375096
IDBENCH=82805
IDSOLVER=1855
FILE ID=node109/3375096-1305449436
RUNJOBID= node109-1305447914-18707
PBS_JOBID= 13324879
Free space on /tmp= 73272 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S874954918-011.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375096-1305449436/watcher-3375096-1305449436 -o /tmp/evaluation-result-3375096-1305449436/solver-3375096-1305449436 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375096-1305449436.cnf

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

MD5SUM BENCH= ae4fafbcf9d01d37f14a04dc4a1c7430
RANDOM SEED=1031283197

node109.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	: 5332.74
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		: 2666.809
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	: 5332.75
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		: 2666.809
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	: 5332.82
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		: 2666.809
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	: 5332.75
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		: 2666.809
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	: 5332.82
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:      24171036 kB
Buffers:        263500 kB
Cached:        2335964 kB
SwapCached:      28404 kB
Active:         194380 kB
Inactive:      8364112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      24171036 kB
SwapTotal:    67111528 kB
SwapFree:     61559568 kB
Dirty:             540 kB
Writeback:           0 kB
AnonPages:     5937196 kB
Mapped:          18596 kB
Slab:           128072 kB
PageTables:      31676 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 17938692 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= 73272 MiB
End job on node109 at 2011-05-15 10:50:37