Trace number 3094447

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 0.870866 0.873537

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S1563258922-027.SATISFIABLE.cnf
MD5SUMd76256d9362323e592886dee80dd4554
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003998
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 

0.79/0.87	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.87	c input CNF file=HOME/instance-3094447-1301757017.cnf 
0.79/0.87	c Clause#=2130  var#=500  ratio=4 
0.79/0.87	c Simplified clause#=2130 
0.79/0.87	c XOR_varElimination deleted var#=0 clauses#=2130 
0.79/0.87	c inative var#=0 
0.79/0.87	c free var#=484  
0.79/0.87	c local search on 
0.79/0.87	c A solution found by local search 
0.79/0.87	c unfixed var#=16 var#=500 
0.79/0.87	c verified 
0.79/0.87	c 
0.79/0.87	s SATISFIABLE
0.79/0.87	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 -183 185 -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 -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 -482 483 484 485 486 487 488 490 491 492 493 494 495 496 -497 -498 -499 500 
0.79/0.87	v 0
0.79/0.87	c 
0.79/0.87	c  Running time=0.869867

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-3094447-1301757017/watcher-3094447-1301757017 -o /tmp/evaluation-result-3094447-1301757017/solver-3094447-1301757017 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094447-1301757017.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: 3.59 3.88 3.73 4/187 12431
/proc/meminfo: memFree=21150304/32951124 swapFree=67111528/67111528
[pid=12431] ppid=12429 vsize=3172 CPUtime=0 cores=1,3
/proc/12431/stat : 12431 (MPhaseSAT) R 12429 12431 12344 0 -1 4202496 348 0 0 0 0 0 0 0 25 0 1 0 268117282 3248128 287 33554432000 134512640 134731564 4293152800 18446744073709551615 134559237 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12431/statm: 791 287 232 54 0 101 0

[startup+0.0373039 s]
/proc/loadavg: 3.59 3.88 3.73 4/187 12431
/proc/meminfo: memFree=21150304/32951124 swapFree=67111528/67111528
[pid=12431] ppid=12429 vsize=3416 CPUtime=0.03 cores=1,3
/proc/12431/stat : 12431 (MPhaseSAT) R 12429 12431 12344 0 -1 4202496 474 0 0 0 3 0 0 0 25 0 1 0 268117282 3497984 413 33554432000 134512640 134731564 4293152800 18446744073709551615 134723320 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12431/statm: 854 413 268 54 0 164 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3416

[startup+0.100292 s]
/proc/loadavg: 3.59 3.88 3.73 4/187 12431
/proc/meminfo: memFree=21150304/32951124 swapFree=67111528/67111528
[pid=12431] ppid=12429 vsize=3680 CPUtime=0.09 cores=1,3
/proc/12431/stat : 12431 (MPhaseSAT) R 12429 12431 12344 0 -1 4202496 517 0 0 0 9 0 0 0 25 0 1 0 268117282 3768320 456 33554432000 134512640 134731564 4293152800 18446744073709551615 134668888 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12431/statm: 920 456 268 54 0 230 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3680

[startup+0.300253 s]
/proc/loadavg: 3.59 3.88 3.73 4/187 12431
/proc/meminfo: memFree=21150304/32951124 swapFree=67111528/67111528
[pid=12431] ppid=12429 vsize=3812 CPUtime=0.29 cores=1,3
/proc/12431/stat : 12431 (MPhaseSAT) R 12429 12431 12344 0 -1 4202496 574 0 0 0 29 0 0 0 25 0 1 0 268117282 3903488 513 33554432000 134512640 134731564 4293152800 18446744073709551615 134659320 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12431/statm: 953 513 268 54 0 263 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3812

[startup+0.700189 s]
/proc/loadavg: 3.59 3.88 3.73 4/187 12431
/proc/meminfo: memFree=21150304/32951124 swapFree=67111528/67111528
[pid=12431] ppid=12429 vsize=4076 CPUtime=0.69 cores=1,3
/proc/12431/stat : 12431 (MPhaseSAT) R 12429 12431 12344 0 -1 4202496 647 0 0 0 69 0 0 0 25 0 1 0 268117282 4173824 586 33554432000 134512640 134731564 4293152800 18446744073709551615 134659726 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12431/statm: 1019 586 268 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+0.800158 s]
/proc/loadavg: 3.59 3.88 3.73 4/187 12431
/proc/meminfo: memFree=21150304/32951124 swapFree=67111528/67111528
[pid=12431] ppid=12429 vsize=4208 CPUtime=0.79 cores=1,3
/proc/12431/stat : 12431 (MPhaseSAT) R 12429 12431 12344 0 -1 4202496 659 0 0 0 79 0 0 0 25 0 1 0 268117282 4308992 598 33554432000 134512640 134731564 4293152800 18446744073709551615 134719975 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/12431/statm: 1052 598 268 54 0 362 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4208

Child status: 10
Real time (s): 0.873537
CPU time (s): 0.870866
CPU user time (s): 0.869867
CPU system time (s): 0.000999
CPU usage (%): 99.6942
Max. virtual memory (cumulated for all children) (KiB): 4208

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.869867
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= 707
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 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node141 at 2011-04-02 17:10:17
IDJOB=3094447
IDBENCH=82929
IDSOLVER=1520
FILE ID=node141/3094447-1301757017
RUNJOBID= node141-1301757016-12364
PBS_JOBID= 12841070
Free space on /tmp= 71880 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S1563258922-027.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094447-1301757017/watcher-3094447-1301757017 -o /tmp/evaluation-result-3094447-1301757017/solver-3094447-1301757017 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094447-1301757017.cnf

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

MD5SUM BENCH= d76256d9362323e592886dee80dd4554
RANDOM SEED=130197107

node141.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	: 5362.96
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	: 5332.82
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	: 5332.75
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		: 2666.806
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	: 5332.84
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	: 5332.75
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		: 2666.806
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:     32951124 kB
MemFree:      21150460 kB
Buffers:        346540 kB
Cached:       11123944 kB
SwapCached:          0 kB
Active:        7463288 kB
Inactive:      4074400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21150460 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            1764 kB
Writeback:           0 kB
AnonPages:       67456 kB
Mapped:          15876 kB
Slab:           196856 kB
PageTables:       5812 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   250860 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= 71880 MiB
End job on node141 at 2011-04-02 17:10:18