Trace number 3375101

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 1.72274 1.72426

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S1468528501-076.SATISFIABLE.cnf
MD5SUM6cc83c4bac88845b4bcdf4315c840cca
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.085986
Satisfiable
(Un)Satisfiability was proved
Number of variables600
Number of clauses2556
Sum of the clauses size7668
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32556
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.69/1.72	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
1.69/1.72	c input CNF file=HOME/instance-3375101-1305449608.cnf 
1.69/1.72	c Clause#=2556  var#=600  ratio=4 
1.69/1.72	c Simplified clause#=2556 
1.69/1.72	c XOR_varElimination deleted var#=1 clauses#=2550 
1.69/1.72	c inative var#=0 
1.69/1.72	c free var#=583  
1.69/1.72	c local search on 
1.69/1.72	c A solution found by local search 
1.69/1.72	c unfixed var#=16 var#=600 
1.69/1.72	c verified 
1.69/1.72	c 
1.69/1.72	s SATISFIABLE
1.69/1.72	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 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 -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 -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 -551 -552 -553 -554 555 556 -557 558 -559 560 -561 -562 -563 -564 -565 566 567 -568 -569 570 -571 572 -573 -574 575 -576 -577 -578 579 580 -581 582 -583 -584 585 586 587 -588 -589 -590 -591 592 -593 594 595 -596 -597 -598 -599 -600 
1.69/1.72	v 0
1.69/1.72	c 
1.69/1.72	c  Running time=1.721738

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-3375101-1305449608/watcher-3375101-1305449608 -o /tmp/evaluation-result-3375101-1305449608/solver-3375101-1305449608 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375101-1305449608.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: 0.42 1.61 2.83 3/314 4114
/proc/meminfo: memFree=17690896/32950928 swapFree=67111348/67111528
[pid=4114] ppid=4112 vsize=12316 CPUtime=0 cores=1,3
/proc/4114/stat : 4114 (MPhaseSAT64) R 4112 4114 30479 0 -1 4202496 444 0 0 0 0 0 0 0 21 0 1 0 656560439 12611584 384 33554432000 4194304 4479436 140734839197856 18446744073709551615 4267463 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4114/statm: 3079 384 282 70 0 199 0

[startup+0.0124089 s]
/proc/loadavg: 0.42 1.61 2.83 3/314 4114
/proc/meminfo: memFree=17690896/32950928 swapFree=67111348/67111528
[pid=4114] ppid=4112 vsize=12600 CPUtime=0.01 cores=1,3
/proc/4114/stat : 4114 (MPhaseSAT64) R 4112 4114 30479 0 -1 4202496 575 0 0 0 1 0 0 0 21 0 1 0 656560439 12902400 514 33554432000 4194304 4479436 140734839197856 18446744073709551615 4339566 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4114/statm: 3150 514 306 70 0 270 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12600

[startup+0.100385 s]
/proc/loadavg: 0.42 1.61 2.83 3/314 4114
/proc/meminfo: memFree=17690896/32950928 swapFree=67111348/67111528
[pid=4114] ppid=4112 vsize=12876 CPUtime=0.09 cores=1,3
/proc/4114/stat : 4114 (MPhaseSAT64) R 4112 4114 30479 0 -1 4202496 683 0 0 0 9 0 0 0 21 0 1 0 656560439 13185024 622 33554432000 4194304 4479436 140734839197856 18446744073709551615 4380555 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4114/statm: 3219 622 324 70 0 339 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12876

[startup+0.300349 s]
/proc/loadavg: 0.42 1.61 2.83 3/314 4114
/proc/meminfo: memFree=17690896/32950928 swapFree=67111348/67111528
[pid=4114] ppid=4112 vsize=13852 CPUtime=0.29 cores=1,3
/proc/4114/stat : 4114 (MPhaseSAT64) R 4112 4114 30479 0 -1 4202496 928 0 0 0 29 0 0 0 22 0 1 0 656560439 14184448 867 33554432000 4194304 4479436 140734839197856 18446744073709551615 4450996 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4114/statm: 3463 867 325 70 0 583 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13852

[startup+0.700281 s]
/proc/loadavg: 0.42 1.61 2.83 3/314 4114
/proc/meminfo: memFree=17690896/32950928 swapFree=67111348/67111528
[pid=4114] ppid=4112 vsize=14628 CPUtime=0.69 cores=1,3
/proc/4114/stat : 4114 (MPhaseSAT64) R 4112 4114 30479 0 -1 4202496 1234 0 0 0 69 0 0 0 24 0 1 0 656560439 14979072 1077 33554432000 4194304 4479436 140734839197856 18446744073709551615 4380535 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4114/statm: 3657 1077 325 70 0 777 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14628

[startup+1.50014 s]
/proc/loadavg: 0.42 1.61 2.83 5/314 4193
/proc/meminfo: memFree=17689124/32950928 swapFree=67111348/67111528
[pid=4114] ppid=4112 vsize=14628 CPUtime=1.49 cores=1,3
/proc/4114/stat : 4114 (MPhaseSAT64) R 4112 4114 30479 0 -1 4202496 1240 0 0 0 149 0 0 0 25 0 1 0 656560439 14979072 1083 33554432000 4194304 4479436 140734839197856 18446744073709551615 4297648 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4114/statm: 3657 1083 328 70 0 777 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14628

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

[startup+1.7001 s]
/proc/loadavg: 0.42 1.61 2.83 5/314 4193
/proc/meminfo: memFree=17689124/32950928 swapFree=67111348/67111528
[pid=4114] ppid=4112 vsize=14628 CPUtime=1.69 cores=1,3
/proc/4114/stat : 4114 (MPhaseSAT64) R 4112 4114 30479 0 -1 4202496 1240 0 0 0 169 0 0 0 25 0 1 0 656560439 14979072 1083 33554432000 4194304 4479436 140734839197856 18446744073709551615 4295265 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/4114/statm: 3657 1083 328 70 0 777 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 14628

Child status: 10
Real time (s): 1.72426
CPU time (s): 1.72274
CPU user time (s): 1.72174
CPU system time (s): 0.000999
CPU usage (%): 99.9117
Max. virtual memory (cumulated for all children) (KiB): 14628

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.72174
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1249
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= 4

runsolver used 0.008998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node125 at 2011-05-15 10:53:28
IDJOB=3375101
IDBENCH=82810
IDSOLVER=1855
FILE ID=node125/3375101-1305449608
RUNJOBID= node125-1305449607-4082
PBS_JOBID= 13324855
Free space on /tmp= 73232 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S1468528501-076.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375101-1305449608/watcher-3375101-1305449608 -o /tmp/evaluation-result-3375101-1305449608/solver-3375101-1305449608 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375101-1305449608.cnf

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

MD5SUM BENCH= 6cc83c4bac88845b4bcdf4315c840cca
RANDOM SEED=194716483

node125.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		: 2666.828
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		: 2666.828
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	: 5266.55
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		: 2666.828
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	: 5332.84
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		: 2666.828
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	: 5332.74
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		: 2666.828
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		: 2666.828
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	: 5332.74
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		: 2666.828
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		: 2666.828
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      17691044 kB
Buffers:        276600 kB
Cached:        4542432 kB
SwapCached:          0 kB
Active:       11198880 kB
Inactive:      3681552 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      17691044 kB
SwapTotal:    67111528 kB
SwapFree:     67111348 kB
Dirty:            2212 kB
Writeback:           0 kB
AnonPages:    10062144 kB
Mapped:          29772 kB
Slab:           279796 kB
PageTables:      36344 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 51038560 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= 73232 MiB
End job on node125 at 2011-05-15 10:53:30