Trace number 3221756

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 0.936857 0.936896

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 benchmark0.004998
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-3221756-1303296264.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#=0 clauses#=2332 
0.89/0.93	c inative var#=0 
0.89/0.93	c free var#=536  
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 -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 
0.89/0.93	v 0
0.89/0.93	c 
0.89/0.93	c  Running time=0.934859

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3221756-1303296264/watcher-3221756-1303296264 -o /tmp/evaluation-result-3221756-1303296264/solver-3221756-1303296264 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221756-1303296264.cnf 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.01 2.01 2.00 2/177 6417
/proc/meminfo: memFree=17431280/32950928 swapFree=67111528/67111528
[pid=6417] ppid=6415 vsize=3240 CPUtime=0 cores=0,2,4,6
/proc/6417/stat : 6417 (MPhaseSAT_M) R 6415 6417 5820 0 -1 4202496 378 0 0 0 0 0 0 0 25 0 1 0 441226187 3317760 318 33554432000 134512640 134829744 4290924256 18446744073709551615 134541365 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6417/statm: 810 318 238 78 0 96 0

[startup+0.037414 s]
/proc/loadavg: 2.01 2.01 2.00 2/177 6417
/proc/meminfo: memFree=17431280/32950928 swapFree=67111528/67111528
[pid=6417] ppid=6415 vsize=3672 CPUtime=0.03 cores=0,2,4,6
/proc/6417/stat : 6417 (MPhaseSAT_M) R 6415 6417 5820 0 -1 4202496 504 0 0 0 3 0 0 0 25 0 1 0 441226187 3760128 444 33554432000 134512640 134829744 4290924256 18446744073709551615 134661654 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6417/statm: 918 445 271 78 0 204 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3672

[startup+0.100434 s]
/proc/loadavg: 2.01 2.01 2.00 2/177 6417
/proc/meminfo: memFree=17431280/32950928 swapFree=67111528/67111528
[pid=6417] ppid=6415 vsize=3804 CPUtime=0.09 cores=0,2,4,6
/proc/6417/stat : 6417 (MPhaseSAT_M) R 6415 6417 5820 0 -1 4202496 547 0 0 0 9 0 0 0 25 0 1 0 441226187 3895296 487 33554432000 134512640 134829744 4290924256 18446744073709551615 134624903 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6417/statm: 951 487 271 78 0 237 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3804

[startup+0.300398 s]
/proc/loadavg: 2.01 2.01 2.00 2/177 6417
/proc/meminfo: memFree=17431280/32950928 swapFree=67111528/67111528
[pid=6417] ppid=6415 vsize=4068 CPUtime=0.29 cores=0,2,4,6
/proc/6417/stat : 6417 (MPhaseSAT_M) R 6415 6417 5820 0 -1 4202496 601 0 0 0 29 0 0 0 25 0 1 0 441226187 4165632 541 33554432000 134512640 134829744 4290924256 18446744073709551615 134661680 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6417/statm: 1017 541 271 78 0 303 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4068

[startup+0.700324 s]
/proc/loadavg: 2.01 2.01 2.00 2/177 6417
/proc/meminfo: memFree=17431280/32950928 swapFree=67111528/67111528
[pid=6417] ppid=6415 vsize=4332 CPUtime=0.69 cores=0,2,4,6
/proc/6417/stat : 6417 (MPhaseSAT_M) R 6415 6417 5820 0 -1 4202496 684 0 0 0 69 0 0 0 25 0 1 0 441226187 4435968 624 33554432000 134512640 134829744 4290924256 18446744073709551615 134661124 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6417/statm: 1083 624 271 78 0 369 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4332

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

[startup+0.900289 s]
/proc/loadavg: 2.01 2.01 2.00 2/177 6417
/proc/meminfo: memFree=17431280/32950928 swapFree=67111528/67111528
[pid=6417] ppid=6415 vsize=4596 CPUtime=0.89 cores=0,2,4,6
/proc/6417/stat : 6417 (MPhaseSAT_M) R 6415 6417 5820 0 -1 4202496 733 0 0 0 89 0 0 0 25 0 1 0 441226187 4706304 673 33554432000 134512640 134829744 4290924256 18446744073709551615 134603563 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/6417/statm: 1149 673 274 78 0 435 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4596

Child status: 10
Real time (s): 0.936896
CPU time (s): 0.936857
CPU user time (s): 0.932858
CPU system time (s): 0.003999
CPU usage (%): 99.9958
Max. virtual memory (cumulated for all children) (KiB): 4596

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.932858
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 749
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= 2

runsolver used 0.003999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node123 at 2011-04-20 12:44:24
IDJOB=3221756
IDBENCH=82976
IDSOLVER=1637
FILE ID=node123/3221756-1303296264
RUNJOBID= node123-1303291017-5838
PBS_JOBID= 13049622
Free space on /tmp= 72504 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S927210717-059.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221756-1303296264/watcher-3221756-1303296264 -o /tmp/evaluation-result-3221756-1303296264/solver-3221756-1303296264 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221756-1303296264.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 7954e0b477e9d5cbd0a1f159f4b0eef6
RANDOM SEED=2119705660

node123.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		: 2666.838
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	: 5333.67
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		: 2666.838
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	: 5226.15
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		: 2666.838
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		: 2666.838
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		: 2666.838
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		: 2666.838
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	: 5332.80
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		: 2666.838
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	: 5332.74
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		: 2666.838
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:     32950928 kB
MemFree:      17431436 kB
Buffers:        672564 kB
Cached:       14417748 kB
SwapCached:          0 kB
Active:        5937496 kB
Inactive:      9241060 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      17431436 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             836 kB
Writeback:           0 kB
AnonPages:       88252 kB
Mapped:          16528 kB
Slab:           276980 kB
PageTables:       4720 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   239948 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= 72504 MiB
End job on node123 at 2011-04-20 12:44:25