Trace number 3095113

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 2011-03-03SAT 0.899862 0.900763

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v600-c2556-S735137557-045.SATISFIABLE.cnf
MD5SUMdb052c7898d14b578cec80f7488daf9a
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003999
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 

0.89/0.90	c MPhaseSAT64 version 402 by Jingchao Chen,  April 1,2011
0.89/0.90	c input CNF file=HOME/instance-3095113-1301758073.cnf 
0.89/0.90	c Clause#=2556  var#=600  ratio=4 
0.89/0.90	c Simplified clause#=2556 
0.89/0.90	c XOR_varElimination deleted var#=0 clauses#=2541 
0.89/0.90	c inative var#=0 
0.89/0.90	c free var#=585  
0.89/0.90	c local search on 
0.89/0.90	c A solution found by local search 
0.89/0.90	c unfixed var#=13 var#=600 
0.89/0.90	c verified 
0.89/0.90	c 
0.89/0.90	s SATISFIABLE
0.89/0.90	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 -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 -597 -598 599 -600 
0.89/0.90	v 0
0.89/0.90	c 
0.89/0.90	c  Running time=0.898863

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 893)

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-3095113-1301758073/watcher-3095113-1301758073 -o /tmp/evaluation-result-3095113-1301758073/solver-3095113-1301758073 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3095113-1301758073.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: 4.11 4.03 3.91 5/189 14467
/proc/meminfo: memFree=21713888/32951124 swapFree=67111528/67111528
[pid=14467] ppid=14465 vsize=3180 CPUtime=0 cores=4,6
/proc/14467/stat : 14467 (MPhaseSAT64) R 14465 14467 14240 0 -1 4202496 383 0 0 0 0 0 0 0 25 0 1 0 287407794 3256320 321 33554432000 134512640 134761588 4287411376 18446744073709551615 134559278 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14467/statm: 795 321 237 61 0 98 0

[startup+0.0997321 s]
/proc/loadavg: 4.11 4.03 3.91 5/189 14467
/proc/meminfo: memFree=21713888/32951124 swapFree=67111528/67111528
[pid=14467] ppid=14465 vsize=3852 CPUtime=0.09 cores=4,6
/proc/14467/stat : 14467 (MPhaseSAT64) R 14465 14467 14240 0 -1 4202496 592 0 0 0 9 0 0 0 25 0 1 0 287407794 3944448 530 33554432000 134512640 134761588 4287411376 18446744073709551615 134747199 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14467/statm: 963 530 273 61 0 266 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3852

[startup+0.100727 s]
/proc/loadavg: 4.11 4.03 3.91 5/189 14467
/proc/meminfo: memFree=21713888/32951124 swapFree=67111528/67111528
[pid=14467] ppid=14465 vsize=3852 CPUtime=0.09 cores=4,6
/proc/14467/stat : 14467 (MPhaseSAT64) R 14465 14467 14240 0 -1 4202496 592 0 0 0 9 0 0 0 25 0 1 0 287407794 3944448 530 33554432000 134512640 134761588 4287411376 18446744073709551615 134616832 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14467/statm: 963 530 273 61 0 266 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3852

[startup+0.300698 s]
/proc/loadavg: 4.11 4.03 3.91 5/189 14467
/proc/meminfo: memFree=21713888/32951124 swapFree=67111528/67111528
[pid=14467] ppid=14465 vsize=4608 CPUtime=0.29 cores=4,6
/proc/14467/stat : 14467 (MPhaseSAT64) R 14465 14467 14240 0 -1 4202496 784 0 0 0 29 0 0 0 25 0 1 0 287407794 4718592 722 33554432000 134512640 134761588 4287411376 18446744073709551615 134747356 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14467/statm: 1152 722 274 61 0 455 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4608

[startup+0.700607 s]
/proc/loadavg: 4.11 4.03 3.91 5/189 14467
/proc/meminfo: memFree=21713888/32951124 swapFree=67111528/67111528
[pid=14467] ppid=14465 vsize=5684 CPUtime=0.69 cores=4,6
/proc/14467/stat : 14467 (MPhaseSAT64) R 14465 14467 14240 0 -1 4202496 1173 0 0 0 69 0 0 0 25 0 1 0 287407794 5820416 991 33554432000 134512640 134761588 4287411376 18446744073709551615 134748067 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14467/statm: 1421 991 274 61 0 724 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5684

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

[startup+0.900586 s]
/proc/loadavg: 4.11 4.03 3.91 5/189 14467
/proc/meminfo: memFree=21713888/32951124 swapFree=67111528/67111528
[pid=14467] ppid=14465 vsize=3716 CPUtime=0.89 cores=4,6
/proc/14467/stat : 14467 (MPhaseSAT64) R 14465 14467 14240 0 -1 4202496 1178 0 0 0 89 0 0 0 25 0 1 0 287407794 3805184 502 33554432000 134512640 134761588 4287411376 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/14467/statm: 929 509 284 61 0 232 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 3716

Child status: 10
Real time (s): 0.900763
CPU time (s): 0.899862
CPU user time (s): 0.898863
CPU system time (s): 0.000999
CPU usage (%): 99.9
Max. virtual memory (cumulated for all children) (KiB): 5684

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.898863
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= 1186
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 0.001999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node104 at 2011-04-02 17:27:53
IDJOB=3095113
IDBENCH=82995
IDSOLVER=1521
FILE ID=node104/3095113-1301758073
RUNJOBID= node104-1301756840-14259
PBS_JOBID= 12841061
Free space on /tmp= 71952 MiB

SOLVER NAME= MPhaseSAT64 2011-03-03
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v600-c2556-S735137557-045.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095113-1301758073/watcher-3095113-1301758073 -o /tmp/evaluation-result-3095113-1301758073/solver-3095113-1301758073 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3095113-1301758073.cnf

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

MD5SUM BENCH= db052c7898d14b578cec80f7488daf9a
RANDOM SEED=681416257

node104.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		: 2666.855
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	: 5333.71
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		: 2666.855
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	: 5332.83
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		: 2666.855
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		: 2666.855
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	: 5332.80
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		: 2666.855
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	: 5293.18
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		: 2666.855
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		: 2666.855
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		: 2666.855
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	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21714168 kB
Buffers:        337000 kB
Cached:       10555028 kB
SwapCached:          0 kB
Active:        7205996 kB
Inactive:      3773612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21714168 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             344 kB
Writeback:           0 kB
AnonPages:       87752 kB
Mapped:          17024 kB
Slab:           193496 kB
PageTables:       5280 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   272176 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= 71952 MiB
End job on node104 at 2011-04-02 17:27:54