Trace number 3094544

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 0.91486 0.914377

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S1610857498-043.SATISFIABLE.cnf
MD5SUM0d600e03980bc39de7eca1909ca62db5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
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 

0.89/0.91	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.89/0.91	c input CNF file=HOME/instance-3094544-1301758993.cnf 
0.89/0.91	c Clause#=2343  var#=550  ratio=4 
0.89/0.91	c Simplified clause#=2343 
0.89/0.91	c XOR_varElimination deleted var#=1 clauses#=2320 
0.89/0.91	c inative var#=0 
0.89/0.91	c free var#=529  
0.89/0.91	c local search on 
0.89/0.91	c A solution found by local search 
0.89/0.91	c unfixed var#=17 var#=550 
0.89/0.91	c verified 
0.89/0.91	c 
0.89/0.91	s SATISFIABLE
0.89/0.91	v 1 2 -3 -4 5 -6 -7 8 9 -10 11 -12 13 -14 -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 -231 232 233 -234 -235 -236 -237 -238 -239 240 241 -242 243 244 -245 246 247 248 -249 250 251 253 254 255 256 -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 -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 
0.89/0.91	v 0
0.89/0.91	c 
0.89/0.91	c  Running time=0.911862

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-3094544-1301758993/watcher-3094544-1301758993 -o /tmp/evaluation-result-3094544-1301758993/solver-3094544-1301758993 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094544-1301758993.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 3.92 4/189 3061
/proc/meminfo: memFree=22029168/32950928 swapFree=67111528/67111528
[pid=3061] ppid=3059 vsize=3140 CPUtime=0 cores=1,3
/proc/3061/stat : 3061 (MPhaseSAT) R 3059 3061 2263 0 -1 4202496 372 0 0 0 0 0 0 0 23 0 1 0 287495957 3215360 311 33554432000 134512640 134731564 4294514464 18446744073709551615 4317959 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/3061/statm: 785 312 237 54 0 95 0

[startup+0.051285 s]
/proc/loadavg: 4.00 4.00 3.92 4/189 3061
/proc/meminfo: memFree=22029168/32950928 swapFree=67111528/67111528
[pid=3061] ppid=3059 vsize=3572 CPUtime=0.04 cores=1,3
/proc/3061/stat : 3061 (MPhaseSAT) R 3059 3061 2263 0 -1 4202496 520 0 0 0 4 0 0 0 23 0 1 0 287495957 3657728 459 33554432000 134512640 134731564 4294514464 18446744073709551615 4290044 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/3061/statm: 893 459 268 54 0 203 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3572

[startup+0.100272 s]
/proc/loadavg: 4.00 4.00 3.92 4/189 3061
/proc/meminfo: memFree=22029168/32950928 swapFree=67111528/67111528
[pid=3061] ppid=3059 vsize=3704 CPUtime=0.09 cores=1,3
/proc/3061/stat : 3061 (MPhaseSAT) R 3059 3061 2263 0 -1 4202496 548 0 0 0 9 0 0 0 23 0 1 0 287495957 3792896 487 33554432000 134512640 134731564 4294514464 18446744073709551615 134614658 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/3061/statm: 926 487 268 54 0 236 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3704

[startup+0.300237 s]
/proc/loadavg: 4.00 4.00 3.92 4/189 3061
/proc/meminfo: memFree=22029168/32950928 swapFree=67111528/67111528
[pid=3061] ppid=3059 vsize=3968 CPUtime=0.29 cores=1,3
/proc/3061/stat : 3061 (MPhaseSAT) R 3059 3061 2263 0 -1 4202496 597 0 0 0 29 0 0 0 25 0 1 0 287495957 4063232 536 33554432000 134512640 134731564 4294514464 18446744073709551615 134668897 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/3061/statm: 992 536 268 54 0 302 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3968

[startup+0.700166 s]
/proc/loadavg: 4.00 4.00 3.92 4/189 3061
/proc/meminfo: memFree=22029168/32950928 swapFree=67111528/67111528
[pid=3061] ppid=3059 vsize=4232 CPUtime=0.69 cores=1,3
/proc/3061/stat : 3061 (MPhaseSAT) R 3059 3061 2263 0 -1 4202496 684 0 0 0 69 0 0 0 25 0 1 0 287495957 4333568 623 33554432000 134512640 134731564 4294514464 18446744073709551615 134634520 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/3061/statm: 1058 623 268 54 0 368 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4232

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

[startup+0.901115 s]
/proc/loadavg: 4.00 4.00 3.92 4/189 3061
/proc/meminfo: memFree=22029168/32950928 swapFree=67111528/67111528
[pid=3061] ppid=3059 vsize=4496 CPUtime=0.89 cores=1,3
/proc/3061/stat : 3061 (MPhaseSAT) R 3059 3061 2263 0 -1 4202496 728 0 0 0 89 0 0 0 25 0 1 0 287495957 4603904 667 33554432000 134512640 134731564 4294514464 18446744073709551615 134603455 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/3061/statm: 1124 667 271 54 0 434 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4496

Child status: 10
Real time (s): 0.914377
CPU time (s): 0.91486
CPU user time (s): 0.912861
CPU system time (s): 0.001999
CPU usage (%): 100.053
Max. virtual memory (cumulated for all children) (KiB): 4496

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.912861
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= 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= 12
involuntary context switches= 3

runsolver used 0 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node149 at 2011-04-02 17:43:13
IDJOB=3094544
IDBENCH=83026
IDSOLVER=1520
FILE ID=node149/3094544-1301758993
RUNJOBID= node149-1301756900-2283
PBS_JOBID= 12841066
Free space on /tmp= 71728 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1610857498-043.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094544-1301758993/watcher-3094544-1301758993 -o /tmp/evaluation-result-3094544-1301758993/solver-3094544-1301758993 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094544-1301758993.cnf

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

MD5SUM BENCH= 0d600e03980bc39de7eca1909ca62db5
RANDOM SEED=1390700191

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:      22029200 kB
Buffers:        362624 kB
Cached:       10206108 kB
SwapCached:          0 kB
Active:        7475672 kB
Inactive:      3175680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      22029200 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:              52 kB
Writeback:           0 kB
AnonPages:       82736 kB
Mapped:          16708 kB
Slab:           206204 kB
PageTables:       5272 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   271224 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 17:43:14