Trace number 3220730

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 1.09683 1.09712

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 benchmark0.021996
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 

1.00/1.09	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
1.00/1.09	c input CNF file=HOME/instance-3220730-1303282948.cnf 
1.00/1.09	c Clause#=2343  var#=550  ratio=4 
1.00/1.09	c Simplified clause#=2343 
1.00/1.09	c XOR_varElimination deleted var#=1 clauses#=2342 
1.00/1.09	c inative var#=0 
1.00/1.09	c free var#=534  
1.00/1.09	c local search on 
1.00/1.09	c A solution found by local search 
1.00/1.09	c unfixed var#=16 var#=550 
1.00/1.09	c verified 
1.00/1.09	c 
1.00/1.09	s SATISFIABLE
1.00/1.09	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 
1.00/1.09	v 0
1.00/1.09	c 
1.00/1.09	c  Running time=1.094833

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-3220730-1303282948/watcher-3220730-1303282948 -o /tmp/evaluation-result-3220730-1303282948/solver-3220730-1303282948 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3220730-1303282948.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: 1.91 2.00 1.99 2/181 27084
/proc/meminfo: memFree=21900772/32951124 swapFree=67111416/67111528
[pid=27084] ppid=27082 vsize=3240 CPUtime=0 cores=0,2,4,6
/proc/27084/stat : 27084 (MPhaseSAT_M) R 27082 27084 26265 0 -1 4202496 378 0 0 0 0 0 0 0 25 0 1 0 439892995 3317760 318 33554432000 134512640 134829744 4291605664 18446744073709551615 134541365 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/27084/statm: 810 318 238 78 0 96 0

[startup+0.0532559 s]
/proc/loadavg: 1.91 2.00 1.99 2/181 27084
/proc/meminfo: memFree=21900772/32951124 swapFree=67111416/67111528
[pid=27084] ppid=27082 vsize=3676 CPUtime=0.05 cores=0,2,4,6
/proc/27084/stat : 27084 (MPhaseSAT_M) R 27082 27084 26265 0 -1 4202496 523 0 0 0 5 0 0 0 25 0 1 0 439892995 3764224 463 33554432000 134512640 134829744 4291605664 18446744073709551615 134624934 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/27084/statm: 919 463 270 78 0 205 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3676

[startup+0.100248 s]
/proc/loadavg: 1.91 2.00 1.99 2/181 27084
/proc/meminfo: memFree=21900772/32951124 swapFree=67111416/67111528
[pid=27084] ppid=27082 vsize=3808 CPUtime=0.09 cores=0,2,4,6
/proc/27084/stat : 27084 (MPhaseSAT_M) R 27082 27084 26265 0 -1 4202496 549 0 0 0 9 0 0 0 25 0 1 0 439892995 3899392 489 33554432000 134512640 134829744 4291605664 18446744073709551615 134657674 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/27084/statm: 952 489 270 78 0 238 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3808

[startup+0.300212 s]
/proc/loadavg: 1.91 2.00 1.99 2/181 27084
/proc/meminfo: memFree=21900772/32951124 swapFree=67111416/67111528
[pid=27084] ppid=27082 vsize=4072 CPUtime=0.29 cores=0,2,4,6
/proc/27084/stat : 27084 (MPhaseSAT_M) R 27082 27084 26265 0 -1 4202496 598 0 0 0 29 0 0 0 25 0 1 0 439892995 4169728 538 33554432000 134512640 134829744 4291605664 18446744073709551615 134661477 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/27084/statm: 1018 538 270 78 0 304 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4072

[startup+0.700149 s]
/proc/loadavg: 1.91 2.00 1.99 2/181 27084
/proc/meminfo: memFree=21900772/32951124 swapFree=67111416/67111528
[pid=27084] ppid=27082 vsize=4336 CPUtime=0.69 cores=0,2,4,6
/proc/27084/stat : 27084 (MPhaseSAT_M) R 27082 27084 26265 0 -1 4202496 686 0 0 0 69 0 0 0 25 0 1 0 439892995 4440064 626 33554432000 134512640 134829744 4291605664 18446744073709551615 3831774 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/27084/statm: 1084 626 270 78 0 370 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4336

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

[startup+0.901131 s]
/proc/loadavg: 1.91 2.00 1.99 2/181 27084
/proc/meminfo: memFree=21900772/32951124 swapFree=67111416/67111528
[pid=27084] ppid=27082 vsize=4600 CPUtime=0.89 cores=0,2,4,6
/proc/27084/stat : 27084 (MPhaseSAT_M) R 27082 27084 26265 0 -1 4202496 730 0 0 0 89 0 0 0 25 0 1 0 439892995 4710400 670 33554432000 134512640 134829744 4291605664 18446744073709551615 134603620 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/27084/statm: 1150 670 273 78 0 436 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4600

[startup+1.00111 s]
/proc/loadavg: 1.91 2.00 1.99 3/182 27085
/proc/meminfo: memFree=21899008/32951124 swapFree=67111416/67111528
[pid=27084] ppid=27082 vsize=4600 CPUtime=1 cores=0,2,4,6
/proc/27084/stat : 27084 (MPhaseSAT_M) R 27082 27084 26265 0 -1 4202496 735 0 0 0 100 0 0 0 25 0 1 0 439892995 4710400 675 33554432000 134512640 134829744 4291605664 18446744073709551615 134606656 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/27084/statm: 1150 675 273 78 0 436 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 4600

Child status: 10
Real time (s): 1.09712
CPU time (s): 1.09683
CPU user time (s): 1.09383
CPU system time (s): 0.002999
CPU usage (%): 99.9737
Max. virtual memory (cumulated for all children) (KiB): 4600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.09383
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 745
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= 3

runsolver used 0.001999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node134 at 2011-04-20 09:02:28
IDJOB=3220730
IDBENCH=82805
IDSOLVER=1637
FILE ID=node134/3220730-1303282948
RUNJOBID= node134-1303271632-26283
PBS_JOBID= 13049531
Free space on /tmp= 71988 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S874954918-011.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3220730-1303282948/watcher-3220730-1303282948 -o /tmp/evaluation-result-3220730-1303282948/solver-3220730-1303282948 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3220730-1303282948.cnf

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

MD5SUM BENCH= ae4fafbcf9d01d37f14a04dc4a1c7430
RANDOM SEED=828709501

node134.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		: 2666.831
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	: 5333.66
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		: 2666.831
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	: 5332.67
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		: 2666.831
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	: 5332.83
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		: 2666.831
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	: 7186.06
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		: 2666.831
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	: 5332.80
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		: 2666.831
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		: 2666.831
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		: 2666.831
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	: 5332.84
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21900788 kB
Buffers:        665528 kB
Cached:        9602856 kB
SwapCached:        108 kB
Active:        6109300 kB
Inactive:      4580412 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21900788 kB
SwapTotal:    67111528 kB
SwapFree:     67111416 kB
Dirty:             628 kB
Writeback:           0 kB
AnonPages:      420952 kB
Mapped:          16300 kB
Slab:           297648 kB
PageTables:       5152 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   577200 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71988 MiB
End job on node134 at 2011-04-20 09:02:29