Trace number 3094323

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 2011-02-15SAT 1.08883 1.09273

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 benchmark0.010997
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 version 401 by Jingchao Chen,  April 1, 2011
1.00/1.09	c input CNF file=HOME/instance-3094323-1301753794.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=1.087835

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-3094323-1301753794/watcher-3094323-1301753794 -o /tmp/evaluation-result-3094323-1301753794/solver-3094323-1301753794 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094323-1301753794.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: 4.00 4.00 3.94 4/189 13930
/proc/meminfo: memFree=19160500/32950928 swapFree=67111528/67111528
[pid=13930] ppid=13928 vsize=3040 CPUtime=0 cores=1,3
/proc/13930/stat : 13930 (MPhaseSAT) R 13928 13930 13129 0 -1 4202496 316 0 0 0 0 0 0 0 25 0 1 0 365610053 3112960 255 33554432000 134512640 134731564 4294508080 18446744073709551615 4294960144 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13930/statm: 760 256 225 54 0 70 0

[startup+0.0937141 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 13930
/proc/meminfo: memFree=19160500/32950928 swapFree=67111528/67111528
[pid=13930] ppid=13928 vsize=3708 CPUtime=0.08 cores=1,3
/proc/13930/stat : 13930 (MPhaseSAT) R 13928 13930 13129 0 -1 4202496 547 0 0 0 8 0 0 0 25 0 1 0 365610053 3796992 485 33554432000 134512640 134731564 4294508080 18446744073709551615 134659334 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13930/statm: 927 485 268 54 0 237 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3708

[startup+0.100712 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 13930
/proc/meminfo: memFree=19160500/32950928 swapFree=67111528/67111528
[pid=13930] ppid=13928 vsize=3708 CPUtime=0.09 cores=1,3
/proc/13930/stat : 13930 (MPhaseSAT) R 13928 13930 13129 0 -1 4202496 548 0 0 0 9 0 0 0 25 0 1 0 365610053 3796992 486 33554432000 134512640 134731564 4294508080 18446744073709551615 134624709 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13930/statm: 927 486 268 54 0 237 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3708

[startup+0.300676 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 13930
/proc/meminfo: memFree=19160500/32950928 swapFree=67111528/67111528
[pid=13930] ppid=13928 vsize=3972 CPUtime=0.29 cores=1,3
/proc/13930/stat : 13930 (MPhaseSAT) R 13928 13930 13129 0 -1 4202496 597 0 0 0 29 0 0 0 25 0 1 0 365610053 4067328 535 33554432000 134512640 134731564 4294508080 18446744073709551615 8793859 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13930/statm: 993 535 268 54 0 303 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3972

[startup+0.700663 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 13930
/proc/meminfo: memFree=19160500/32950928 swapFree=67111528/67111528
[pid=13930] ppid=13928 vsize=4236 CPUtime=0.69 cores=1,3
/proc/13930/stat : 13930 (MPhaseSAT) R 13928 13930 13129 0 -1 4202496 685 0 0 0 69 0 0 0 25 0 1 0 365610053 4337664 623 33554432000 134512640 134731564 4294508080 18446744073709551615 134655758 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13930/statm: 1059 623 268 54 0 369 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4236

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

[startup+0.900566 s]
/proc/loadavg: 4.00 4.00 3.94 4/189 13930
/proc/meminfo: memFree=19160500/32950928 swapFree=67111528/67111528
[pid=13930] ppid=13928 vsize=4500 CPUtime=0.89 cores=1,3
/proc/13930/stat : 13930 (MPhaseSAT) R 13928 13930 13129 0 -1 4202496 729 0 0 0 89 0 0 0 25 0 1 0 365610053 4608000 667 33554432000 134512640 134731564 4294508080 18446744073709551615 134603343 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13930/statm: 1125 667 271 54 0 435 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4500

[startup+1.00055 s]
/proc/loadavg: 4.00 4.00 3.94 5/190 13931
/proc/meminfo: memFree=19158904/32950928 swapFree=67111528/67111528
[pid=13930] ppid=13928 vsize=4500 CPUtime=1 cores=1,3
/proc/13930/stat : 13930 (MPhaseSAT) R 13928 13930 13129 0 -1 4202496 734 0 0 0 100 0 0 0 25 0 1 0 365610053 4608000 672 33554432000 134512640 134731564 4294508080 18446744073709551615 134605560 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/13930/statm: 1125 672 271 54 0 435 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 4500

Child status: 10
Real time (s): 1.09273
CPU time (s): 1.08883
CPU user time (s): 1.08883
CPU system time (s): 0
CPU usage (%): 99.6434
Max. virtual memory (cumulated for all children) (KiB): 4500

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.08883
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 744
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= 1

runsolver used 0.005999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node116 at 2011-04-02 16:16:34
IDJOB=3094323
IDBENCH=82805
IDSOLVER=1520
FILE ID=node116/3094323-1301753794
RUNJOBID= node116-1301748570-13149
PBS_JOBID= 12841021
Free space on /tmp= 71264 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S874954918-011.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094323-1301753794/watcher-3094323-1301753794 -o /tmp/evaluation-result-3094323-1301753794/solver-3094323-1301753794 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094323-1301753794.cnf

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

MD5SUM BENCH= ae4fafbcf9d01d37f14a04dc4a1c7430
RANDOM SEED=1153972263

node116.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		: 2666.826
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		: 2666.826
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		: 2666.826
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		: 2666.826
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	: 5332.75
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		: 2666.826
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	: 5332.77
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		: 2666.826
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	: 5332.75
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		: 2666.826
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		: 2666.826
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:      19160540 kB
Buffers:        387300 kB
Cached:       13011616 kB
SwapCached:          0 kB
Active:        9105344 kB
Inactive:      4377112 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      19160540 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             396 kB
Writeback:           0 kB
AnonPages:       83240 kB
Mapped:          16908 kB
Slab:           244292 kB
PageTables:       4880 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   270248 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= 71264 MiB
End job on node116 at 2011-04-02 16:16:35