Trace number 3094584

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 0.890864 0.893422

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S1280860344-022.SATISFIABLE.cnf
MD5SUM52f4c2549736f42ae4f40e4dd45d91d0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003999
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 

0.79/0.89	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.89	c input CNF file=HOME/instance-3094584-1301759813.cnf 
0.79/0.89	c Clause#=2130  var#=500  ratio=4 
0.79/0.89	c Simplified clause#=2130 
0.79/0.89	c XOR_varElimination deleted var#=0 clauses#=2122 
0.79/0.89	c inative var#=0 
0.79/0.89	c free var#=479  
0.79/0.89	c local search on 
0.79/0.89	c A solution found by local search 
0.79/0.89	c unfixed var#=19 var#=500 
0.79/0.89	c verified 
0.79/0.89	c 
0.79/0.89	s SATISFIABLE
0.79/0.89	v 1 2 -3 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 -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 -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 -249 251 252 253 -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 
0.79/0.89	v 0
0.79/0.89	c 
0.79/0.89	c  Running time=0.889865

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-3094584-1301759813/watcher-3094584-1301759813 -o /tmp/evaluation-result-3094584-1301759813/solver-3094584-1301759813 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094584-1301759813.cnf 

running on 2 cores: 4,6

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: 3.89 3.98 3.95 5/193 22172
/proc/meminfo: memFree=20542632/32951124 swapFree=67111528/67111528
[pid=22172] ppid=22170 vsize=3132 CPUtime=0 cores=4,6
/proc/22172/stat : 22172 (MPhaseSAT) R 22170 22172 21142 0 -1 4202496 372 0 0 0 0 0 0 0 25 0 1 0 287579455 3207168 310 33554432000 134512640 134731564 4289800448 18446744073709551615 134578770 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22172/statm: 783 314 237 54 0 93 0

[startup+0.071206 s]
/proc/loadavg: 3.89 3.98 3.95 5/193 22172
/proc/meminfo: memFree=20542632/32951124 swapFree=67111528/67111528
[pid=22172] ppid=22170 vsize=3680 CPUtime=0.06 cores=4,6
/proc/22172/stat : 22172 (MPhaseSAT) R 22170 22172 21142 0 -1 4202496 519 0 0 0 6 0 0 0 25 0 1 0 287579455 3768320 457 33554432000 134512640 134731564 4289800448 18446744073709551615 2092899 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22172/statm: 920 457 269 54 0 230 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3680

[startup+0.100226 s]
/proc/loadavg: 3.89 3.98 3.95 5/193 22172
/proc/meminfo: memFree=20542632/32951124 swapFree=67111528/67111528
[pid=22172] ppid=22170 vsize=3680 CPUtime=0.09 cores=4,6
/proc/22172/stat : 22172 (MPhaseSAT) R 22170 22172 21142 0 -1 4202496 520 0 0 0 9 0 0 0 25 0 1 0 287579455 3768320 458 33554432000 134512640 134731564 4289800448 18446744073709551615 134720304 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22172/statm: 920 458 269 54 0 230 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3680

[startup+0.30018 s]
/proc/loadavg: 3.89 3.98 3.95 5/193 22172
/proc/meminfo: memFree=20542632/32951124 swapFree=67111528/67111528
[pid=22172] ppid=22170 vsize=3812 CPUtime=0.29 cores=4,6
/proc/22172/stat : 22172 (MPhaseSAT) R 22170 22172 21142 0 -1 4202496 572 0 0 0 29 0 0 0 25 0 1 0 287579455 3903488 510 33554432000 134512640 134731564 4289800448 18446744073709551615 134659274 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22172/statm: 953 510 269 54 0 263 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3812

[startup+0.701132 s]
/proc/loadavg: 3.89 3.98 3.95 5/193 22172
/proc/meminfo: memFree=20542632/32951124 swapFree=67111528/67111528
[pid=22172] ppid=22170 vsize=4208 CPUtime=0.69 cores=4,6
/proc/22172/stat : 22172 (MPhaseSAT) R 22170 22172 21142 0 -1 4202496 653 0 0 0 69 0 0 0 25 0 1 0 287579455 4308992 591 33554432000 134512640 134731564 4289800448 18446744073709551615 134659334 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22172/statm: 1052 591 269 54 0 362 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4208

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

[startup+0.801094 s]
/proc/loadavg: 3.89 3.98 3.95 5/193 22172
/proc/meminfo: memFree=20542632/32951124 swapFree=67111528/67111528
[pid=22172] ppid=22170 vsize=4208 CPUtime=0.79 cores=4,6
/proc/22172/stat : 22172 (MPhaseSAT) R 22170 22172 21142 0 -1 4202496 662 0 0 0 79 0 0 0 25 0 1 0 287579455 4308992 600 33554432000 134512640 134731564 4289800448 18446744073709551615 134659349 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22172/statm: 1052 600 269 54 0 362 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4208

Child status: 10
Real time (s): 0.893422
CPU time (s): 0.890864
CPU user time (s): 0.887865
CPU system time (s): 0.002999
CPU usage (%): 99.7137
Max. virtual memory (cumulated for all children) (KiB): 4208

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.887865
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 712
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= 2

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node132 at 2011-04-02 17:56:53
IDJOB=3094584
IDBENCH=83066
IDSOLVER=1520
FILE ID=node132/3094584-1301759813
RUNJOBID= node132-1301757100-21161
PBS_JOBID= 12841076
Free space on /tmp= 72388 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S1280860344-022.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094584-1301759813/watcher-3094584-1301759813 -o /tmp/evaluation-result-3094584-1301759813/solver-3094584-1301759813 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094584-1301759813.cnf

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

MD5SUM BENCH= 52f4c2549736f42ae4f40e4dd45d91d0
RANDOM SEED=414483738

node132.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		: 2666.833
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	: 5333.66
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		: 2666.833
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	: 5332.74
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		: 2666.833
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	: 5332.76
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		: 2666.833
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		: 2666.833
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		: 2666.833
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	: 5332.67
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		: 2666.833
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		: 2666.833
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:      20542788 kB
Buffers:        358244 kB
Cached:       11715164 kB
SwapCached:          0 kB
Active:        7315596 kB
Inactive:      4840000 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20542788 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             512 kB
Writeback:           0 kB
AnonPages:       82004 kB
Mapped:          16536 kB
Slab:           191400 kB
PageTables:       5440 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   266172 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72388 MiB
End job on node132 at 2011-04-02 17:56:54