Trace number 3094595

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 1.15682 1.1582

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S204737200-067.SATISFIABLE.cnf
MD5SUMc8e689035f3179f449d681054feb5bd2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005999
Satisfiable
(Un)Satisfiability was proved
Number of variables500
Number of clauses2130
Sum of the clauses size6390
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32130
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.10/1.15	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.10/1.15	c input CNF file=HOME/instance-3094595-1301760045.cnf 
1.10/1.15	c Clause#=2130  var#=500  ratio=4 
1.10/1.15	c Simplified clause#=2130 
1.10/1.15	c XOR_varElimination deleted var#=0 clauses#=2125 
1.10/1.15	c inative var#=0 
1.10/1.15	c free var#=481  
1.10/1.15	c local search on 
1.10/1.15	c A solution found by local search 
1.10/1.15	c unfixed var#=18 var#=500 
1.10/1.15	c verified 
1.10/1.15	c 
1.10/1.15	s SATISFIABLE
1.10/1.15	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 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 -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 -370 371 372 373 -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 
1.10/1.15	v 0
1.10/1.15	c 
1.10/1.15	c  Running time=1.153824

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-3094595-1301760045/watcher-3094595-1301760045 -o /tmp/evaluation-result-3094595-1301760045/solver-3094595-1301760045 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094595-1301760045.cnf 

running on 2 cores: 0,2

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: 3.91 3.97 3.92 5/189 3273
/proc/meminfo: memFree=22037708/32950928 swapFree=67111528/67111528
[pid=3273] ppid=3271 vsize=3040 CPUtime=0 cores=0,2
/proc/3273/stat : 3273 (MPhaseSAT) R 3271 3273 2263 0 -1 4202496 323 0 0 0 0 0 0 0 25 0 1 0 287601180 3112960 262 33554432000 134512640 134731564 4291884128 18446744073709551615 4170371 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/3273/statm: 760 262 225 54 0 70 0

[startup+0.079285 s]
/proc/loadavg: 3.91 3.97 3.92 5/189 3273
/proc/meminfo: memFree=22037708/32950928 swapFree=67111528/67111528
[pid=3273] ppid=3271 vsize=3680 CPUtime=0.07 cores=0,2
/proc/3273/stat : 3273 (MPhaseSAT) R 3271 3273 2263 0 -1 4202496 518 0 0 0 7 0 0 0 25 0 1 0 287601180 3768320 456 33554432000 134512640 134731564 4291884128 18446744073709551615 134715400 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/3273/statm: 920 456 268 54 0 230 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 3680

[startup+0.100297 s]
/proc/loadavg: 3.91 3.97 3.92 5/189 3273
/proc/meminfo: memFree=22037708/32950928 swapFree=67111528/67111528
[pid=3273] ppid=3271 vsize=3680 CPUtime=0.09 cores=0,2
/proc/3273/stat : 3273 (MPhaseSAT) R 3271 3273 2263 0 -1 4202496 520 0 0 0 9 0 0 0 25 0 1 0 287601180 3768320 458 33554432000 134512640 134731564 4291884128 18446744073709551615 134659689 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/3273/statm: 920 458 268 54 0 230 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3680

[startup+0.300243 s]
/proc/loadavg: 3.91 3.97 3.92 5/189 3273
/proc/meminfo: memFree=22037708/32950928 swapFree=67111528/67111528
[pid=3273] ppid=3271 vsize=3812 CPUtime=0.29 cores=0,2
/proc/3273/stat : 3273 (MPhaseSAT) R 3271 3273 2263 0 -1 4202496 566 0 0 0 29 0 0 0 25 0 1 0 287601180 3903488 504 33554432000 134512640 134731564 4291884128 18446744073709551615 134669331 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/3273/statm: 953 504 268 54 0 263 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3812

[startup+0.701163 s]
/proc/loadavg: 3.91 3.97 3.92 5/189 3273
/proc/meminfo: memFree=22037708/32950928 swapFree=67111528/67111528
[pid=3273] ppid=3271 vsize=4076 CPUtime=0.69 cores=0,2
/proc/3273/stat : 3273 (MPhaseSAT) R 3271 3273 2263 0 -1 4202496 645 0 0 0 69 0 0 0 25 0 1 0 287601180 4173824 583 33554432000 134512640 134731564 4291884128 18446744073709551615 134659320 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/3273/statm: 1019 583 268 54 0 329 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4076

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

[startup+1.10609 s]
/proc/loadavg: 3.91 3.97 3.92 5/190 3274
/proc/meminfo: memFree=22036216/32950928 swapFree=67111528/67111528
[pid=3273] ppid=3271 vsize=4340 CPUtime=1.1 cores=0,2
/proc/3273/stat : 3273 (MPhaseSAT) R 3271 3273 2263 0 -1 4202496 699 0 0 0 110 0 0 0 25 0 1 0 287601180 4444160 637 33554432000 134512640 134731564 4291884128 18446744073709551615 134605518 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/3273/statm: 1085 637 271 54 0 395 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4340

Child status: 10
Real time (s): 1.1582
CPU time (s): 1.15682
CPU user time (s): 1.15482
CPU system time (s): 0.001999
CPU usage (%): 99.8814
Max. virtual memory (cumulated for all children) (KiB): 4340

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.15482
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 710
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= 12
involuntary context switches= 12

runsolver used 0.003999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node149 at 2011-04-02 18:00:45
IDJOB=3094595
IDBENCH=83077
IDSOLVER=1520
FILE ID=node149/3094595-1301760045
RUNJOBID= node149-1301756900-2281
PBS_JOBID= 12841066
Free space on /tmp= 71728 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S204737200-067.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094595-1301760045/watcher-3094595-1301760045 -o /tmp/evaluation-result-3094595-1301760045/solver-3094595-1301760045 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094595-1301760045.cnf

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

MD5SUM BENCH= c8e689035f3179f449d681054feb5bd2
RANDOM SEED=1095519028

node149.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		: 2666.806
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	: 5333.61
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		: 2666.806
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		: 2666.806
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		: 2666.806
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	: 5332.73
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		: 2666.806
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		: 2666.806
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		: 2666.806
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	: 5332.82
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		: 2666.806
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:      22037972 kB
Buffers:        362908 kB
Cached:       10206168 kB
SwapCached:          0 kB
Active:        7467608 kB
Inactive:      3175688 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      22037972 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             396 kB
Writeback:           0 kB
AnonPages:       74300 kB
Mapped:          16708 kB
Slab:           206240 kB
PageTables:       5268 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   257324 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= 71724 MiB
End job on node149 at 2011-04-02 18:00:46