Trace number 3375317

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 0.78088 0.781885

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S1610857498-043.SATISFIABLE.cnf
MD5SUM0d600e03980bc39de7eca1909ca62db5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
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-3375317-1305450075.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#=1 clauses#=2320 
0.69/0.78	c inative var#=0 
0.69/0.78	c free var#=529  
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#=17 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 -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 -249 250 251 253 254 255 256 -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 -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 
0.69/0.78	v 0
0.69/0.78	c 
0.69/0.78	c  Running time=0.779881

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-3375317-1305450075/watcher-3375317-1305450075 -o /tmp/evaluation-result-3375317-1305450075/solver-3375317-1305450075 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375317-1305450075.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: 3.74 2.49 2.95 4/328 18615
/proc/meminfo: memFree=26977900/32951124 swapFree=46575252/67111528
[pid=18615] ppid=18613 vsize=12280 CPUtime=0 cores=4,6
/proc/18615/stat : 18615 (MPhaseSAT64) R 18613 18615 17988 0 -1 4202496 443 0 0 0 0 0 0 0 25 0 1 0 389198819 12574720 382 33554432000 4194304 4479436 140734739527680 18446744073709551615 4267345 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/18615/statm: 3070 382 282 70 0 190 0

[startup+0.080856 s]
/proc/loadavg: 3.74 2.49 2.95 4/328 18615
/proc/meminfo: memFree=26977900/32951124 swapFree=46575252/67111528
[pid=18615] ppid=18613 vsize=12732 CPUtime=0.07 cores=4,6
/proc/18615/stat : 18615 (MPhaseSAT64) R 18613 18615 17988 0 -1 4202496 657 0 0 0 7 0 0 0 25 0 1 0 389198819 13037568 595 33554432000 4194304 4479436 140734739527680 18446744073709551615 4380794 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/18615/statm: 3183 595 324 70 0 303 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 12732

[startup+0.100863 s]
/proc/loadavg: 3.74 2.49 2.95 4/328 18615
/proc/meminfo: memFree=26977900/32951124 swapFree=46575252/67111528
[pid=18615] ppid=18613 vsize=12876 CPUtime=0.09 cores=4,6
/proc/18615/stat : 18615 (MPhaseSAT64) R 18613 18615 17988 0 -1 4202496 682 0 0 0 9 0 0 0 25 0 1 0 389198819 13185024 620 33554432000 4194304 4479436 140734739527680 18446744073709551615 4381465 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/18615/statm: 3219 620 324 70 0 339 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12876

[startup+0.300819 s]
/proc/loadavg: 3.74 2.49 2.95 4/328 18615
/proc/meminfo: memFree=26977900/32951124 swapFree=46575252/67111528
[pid=18615] ppid=18613 vsize=13720 CPUtime=0.29 cores=4,6
/proc/18615/stat : 18615 (MPhaseSAT64) R 18613 18615 17988 0 -1 4202496 894 0 0 0 29 0 0 0 25 0 1 0 389198819 14049280 832 33554432000 4194304 4479436 140734739527680 18446744073709551615 4451987 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/18615/statm: 3430 832 325 70 0 550 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13720

[startup+0.700745 s]
/proc/loadavg: 3.74 2.49 2.95 4/328 18615
/proc/meminfo: memFree=26977900/32951124 swapFree=46575252/67111528
[pid=18615] ppid=18613 vsize=14556 CPUtime=0.69 cores=4,6
/proc/18615/stat : 18615 (MPhaseSAT64) R 18613 18615 17988 0 -1 4202496 1183 0 0 0 69 0 0 0 25 0 1 0 389198819 14905344 1025 33554432000 4194304 4479436 140734739527680 18446744073709551615 4451942 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/18615/statm: 3639 1025 325 70 0 759 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14556

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

Child status: 10
Real time (s): 0.781885
CPU time (s): 0.78088
CPU user time (s): 0.778881
CPU system time (s): 0.001999
CPU usage (%): 99.8715
Max. virtual memory (cumulated for all children) (KiB): 14620

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.778881
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= 1197
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= 5
involuntary context switches= 3

runsolver used 0.005999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node107 at 2011-05-15 11:01:16
IDJOB=3375317
IDBENCH=83026
IDSOLVER=1855
FILE ID=node107/3375317-1305450075
RUNJOBID= node107-1305449923-18426
PBS_JOBID= 13324866
Free space on /tmp= 73492 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1610857498-043.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375317-1305450075/watcher-3375317-1305450075 -o /tmp/evaluation-result-3375317-1305450075/solver-3375317-1305450075 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375317-1305450075.cnf

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

MD5SUM BENCH= 0d600e03980bc39de7eca1909ca62db5
RANDOM SEED=1239915098

node107.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		: 2666.829
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		: 2666.829
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		: 2666.829
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	: 5332.67
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		: 2666.829
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	: 5332.82
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		: 2666.829
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	: 5332.74
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		: 2666.829
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	: 5359.47
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		: 2666.829
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		: 2666.829
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:      26977932 kB
Buffers:        161088 kB
Cached:        1217580 kB
SwapCached:       9832 kB
Active:        5273428 kB
Inactive:       419452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      26977932 kB
SwapTotal:    67111528 kB
SwapFree:     46575252 kB
Dirty:             364 kB
Writeback:           0 kB
AnonPages:     4312368 kB
Mapped:          20024 kB
Slab:           146548 kB
PageTables:      69688 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 65010484 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= 73492 MiB
End job on node107 at 2011-05-15 11:01:16