Trace number 3094231

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 0.877866 0.877611

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S1263625223-038.SATISFIABLE.cnf
MD5SUMbcd207ee685856d0ca572e80c3354408
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.016996
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 

0.80/0.87	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.80/0.87	c input CNF file=HOME/instance-3094231-1301752506.cnf 
0.80/0.87	c Clause#=2130  var#=500  ratio=4 
0.80/0.87	c Simplified clause#=2130 
0.80/0.87	c XOR_varElimination deleted var#=0 clauses#=2103 
0.80/0.87	c inative var#=0 
0.80/0.87	c free var#=486  
0.80/0.87	c local search on 
0.80/0.87	c A solution found by local search 
0.80/0.87	c unfixed var#=11 var#=500 
0.80/0.87	c verified 
0.80/0.87	c 
0.80/0.87	s SATISFIABLE
0.80/0.87	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 -113 114 115 117 118 119 120 -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 -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 -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 -434 435 436 438 439 440 -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 -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 
0.80/0.87	v 0
0.80/0.87	c 
0.80/0.87	c  Running time=0.875867

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-3094231-1301752506/watcher-3094231-1301752506 -o /tmp/evaluation-result-3094231-1301752506/solver-3094231-1301752506 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094231-1301752506.cnf 

running on 2 cores: 5,7

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: 3.93 3.98 3.90 4/189 12573
/proc/meminfo: memFree=22270580/32950928 swapFree=67111528/67111528
[pid=12573] ppid=12571 vsize=3132 CPUtime=0 cores=5,7
/proc/12573/stat : 12573 (MPhaseSAT) R 12571 12573 11954 0 -1 4202496 378 0 0 0 0 0 0 0 25 0 1 0 286849339 3207168 316 33554432000 134512640 134731564 4291609840 18446744073709551615 134541357 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12573/statm: 783 316 238 54 0 93 0

[startup+0.10431 s]
/proc/loadavg: 3.93 3.98 3.90 4/189 12573
/proc/meminfo: memFree=22270580/32950928 swapFree=67111528/67111528
[pid=12573] ppid=12571 vsize=3680 CPUtime=0.1 cores=5,7
/proc/12573/stat : 12573 (MPhaseSAT) R 12571 12573 11954 0 -1 4202496 518 0 0 0 10 0 0 0 25 0 1 0 286849339 3768320 456 33554432000 134512640 134731564 4291609840 18446744073709551615 134624794 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12573/statm: 920 456 268 54 0 230 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 3680

[startup+0.200292 s]
/proc/loadavg: 3.93 3.98 3.90 4/189 12573
/proc/meminfo: memFree=22270580/32950928 swapFree=67111528/67111528
[pid=12573] ppid=12571 vsize=3812 CPUtime=0.2 cores=5,7
/proc/12573/stat : 12573 (MPhaseSAT) R 12571 12573 11954 0 -1 4202496 558 0 0 0 20 0 0 0 25 0 1 0 286849339 3903488 496 33554432000 134512640 134731564 4291609840 18446744073709551615 134655864 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12573/statm: 953 496 268 54 0 263 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 3812

[startup+0.300275 s]
/proc/loadavg: 3.93 3.98 3.90 4/189 12573
/proc/meminfo: memFree=22270580/32950928 swapFree=67111528/67111528
[pid=12573] ppid=12571 vsize=3812 CPUtime=0.3 cores=5,7
/proc/12573/stat : 12573 (MPhaseSAT) R 12571 12573 11954 0 -1 4202496 571 0 0 0 30 0 0 0 25 0 1 0 286849339 3903488 509 33554432000 134512640 134731564 4291609840 18446744073709551615 10201054 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12573/statm: 953 509 268 54 0 263 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 3812

[startup+0.700204 s]
/proc/loadavg: 3.93 3.98 3.90 4/189 12573
/proc/meminfo: memFree=22270580/32950928 swapFree=67111528/67111528
[pid=12573] ppid=12571 vsize=4208 CPUtime=0.7 cores=5,7
/proc/12573/stat : 12573 (MPhaseSAT) R 12571 12573 11954 0 -1 4202496 650 0 0 0 70 0 0 0 25 0 1 0 286849339 4308992 588 33554432000 134512640 134731564 4291609840 18446744073709551615 134717355 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12573/statm: 1052 588 268 54 0 362 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 4208

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

[startup+0.800187 s]
/proc/loadavg: 3.93 3.98 3.90 4/189 12573
/proc/meminfo: memFree=22270580/32950928 swapFree=67111528/67111528
[pid=12573] ppid=12571 vsize=4208 CPUtime=0.8 cores=5,7
/proc/12573/stat : 12573 (MPhaseSAT) R 12571 12573 11954 0 -1 4202496 668 0 0 0 80 0 0 0 25 0 1 0 286849339 4308992 606 33554432000 134512640 134731564 4291609840 18446744073709551615 134659685 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/12573/statm: 1052 606 268 54 0 362 0
Current children cumulated CPU time (s) 0.8
Current children cumulated vsize (KiB) 4208

Child status: 10
Real time (s): 0.877611
CPU time (s): 0.877866
CPU user time (s): 0.877866
CPU system time (s): 0
CPU usage (%): 100.029
Max. virtual memory (cumulated for all children) (KiB): 4208

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.877866
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= 711
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= 3

runsolver used 0.001999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node120 at 2011-04-02 15:55:06
IDJOB=3094231
IDBENCH=82713
IDSOLVER=1520
FILE ID=node120/3094231-1301752506
RUNJOBID= node120-1301748570-11975
PBS_JOBID= 12841017
Free space on /tmp= 71756 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S1263625223-038.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094231-1301752506/watcher-3094231-1301752506 -o /tmp/evaluation-result-3094231-1301752506/solver-3094231-1301752506 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094231-1301752506.cnf

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

MD5SUM BENCH= bcd207ee685856d0ca572e80c3354408
RANDOM SEED=916818249

node120.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		: 2666.809
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		: 2666.809
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	: 5226.07
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.78
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		: 2666.809
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		: 2666.809
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		: 2666.809
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:      22270736 kB
Buffers:        351628 kB
Cached:        9914764 kB
SwapCached:          0 kB
Active:        7418748 kB
Inactive:      2990224 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      22270736 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            3016 kB
Writeback:           0 kB
AnonPages:      142420 kB
Mapped:          17100 kB
Slab:           207900 kB
PageTables:       5404 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   327728 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= 71756 MiB
End job on node120 at 2011-04-02 15:55:07