Trace number 3095625

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_M 2011-02-16SAT 1.02384 1.03083

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S261841674-082.SATISFIABLE.cnf
MD5SUM7a466863eebd6d1afeaf2ac3e2c1a1d9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.928857
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 

0.99/1.03	c MPhaseSAT_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.99/1.03	c input CNF file=HOME/instance-3095625-1301754301.cnf 
0.99/1.03	c Clause#=2130  var#=500  ratio=4 
0.99/1.03	c Simplified clause#=2130 
0.99/1.03	c XOR_varElimination deleted var#=0 clauses#=2119 
0.99/1.03	c inative var#=0 
0.99/1.03	c free var#=490  
0.99/1.03	c local search on 
0.99/1.03	c A solution found by local search 
0.99/1.03	c unfixed var#=8 var#=500 
0.99/1.03	c verified 
0.99/1.03	c 
0.99/1.03	s SATISFIABLE
0.99/1.03	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 -183 184 -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 -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 -413 414 415 416 418 -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 
0.99/1.03	v 0
0.99/1.03	c 
0.99/1.03	c  Running time=1.022844

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-3095625-1301754301/watcher-3095625-1301754301 -o /tmp/evaluation-result-3095625-1301754301/solver-3095625-1301754301 -C 2400 -W 1300 -M 7680 MPhaseSAT_M HOME/instance-3095625-1301754301.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: 4.02 4.01 3.94 4/189 18829
/proc/meminfo: memFree=21812100/32951124 swapFree=67111528/67111528
[pid=18829] ppid=18827 vsize=1420 CPUtime=0 cores=0,2
/proc/18829/stat : 18829 (MPhaseSAT_M) R 18827 18829 17687 0 -1 4194304 79 0 0 0 0 0 0 0 25 0 1 0 267846402 1454080 32 33554432000 134512640 134829744 4287505120 18446744073709551615 10560084 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/18829/statm: 355 32 24 78 0 31 0

[startup+0.0282691 s]
/proc/loadavg: 4.02 4.01 3.94 4/189 18829
/proc/meminfo: memFree=21812100/32951124 swapFree=67111528/67111528
[pid=18829] ppid=18827 vsize=3516 CPUtime=0.02 cores=0,2
/proc/18829/stat : 18829 (MPhaseSAT_M) R 18827 18829 17687 0 -1 4202496 466 0 0 0 2 0 0 0 25 0 1 0 267846402 3600384 405 33554432000 134512640 134829744 4287505120 18446744073709551615 134679936 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18829/statm: 879 405 270 78 0 165 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3516

[startup+0.100282 s]
/proc/loadavg: 4.02 4.01 3.94 4/189 18829
/proc/meminfo: memFree=21812100/32951124 swapFree=67111528/67111528
[pid=18829] ppid=18827 vsize=3780 CPUtime=0.09 cores=0,2
/proc/18829/stat : 18829 (MPhaseSAT_M) R 18827 18829 17687 0 -1 4202496 519 0 0 0 9 0 0 0 25 0 1 0 267846402 3870720 458 33554432000 134512640 134829744 4287505120 18446744073709551615 134725760 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18829/statm: 945 458 270 78 0 231 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3780

[startup+0.300261 s]
/proc/loadavg: 4.02 4.01 3.94 4/189 18829
/proc/meminfo: memFree=21812100/32951124 swapFree=67111528/67111528
[pid=18829] ppid=18827 vsize=3912 CPUtime=0.29 cores=0,2
/proc/18829/stat : 18829 (MPhaseSAT_M) R 18827 18829 17687 0 -1 4202496 566 0 0 0 29 0 0 0 25 0 1 0 267846402 4005888 505 33554432000 134512640 134829744 4287505120 18446744073709551615 134722439 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18829/statm: 978 505 270 78 0 264 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3912

[startup+0.700166 s]
/proc/loadavg: 4.02 4.01 3.94 4/189 18829
/proc/meminfo: memFree=21812100/32951124 swapFree=67111528/67111528
[pid=18829] ppid=18827 vsize=4176 CPUtime=0.69 cores=0,2
/proc/18829/stat : 18829 (MPhaseSAT_M) R 18827 18829 17687 0 -1 4202496 648 0 0 0 69 0 0 0 25 0 1 0 267846402 4276224 587 33554432000 134512640 134829744 4287505120 18446744073709551615 134722768 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18829/statm: 1044 587 270 78 0 330 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4176

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

[startup+0.901124 s]
/proc/loadavg: 4.02 4.01 3.94 4/189 18829
/proc/meminfo: memFree=21812100/32951124 swapFree=67111528/67111528
[pid=18829] ppid=18827 vsize=4440 CPUtime=0.89 cores=0,2
/proc/18829/stat : 18829 (MPhaseSAT_M) R 18827 18829 17687 0 -1 4202496 693 0 0 0 89 0 0 0 25 0 1 0 267846402 4546560 632 33554432000 134512640 134829744 4287505120 18446744073709551615 134603580 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18829/statm: 1110 632 273 78 0 396 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 4440

[startup+1.00113 s]
/proc/loadavg: 4.02 4.01 3.94 5/190 18830
/proc/meminfo: memFree=21809992/32951124 swapFree=67111528/67111528
[pid=18829] ppid=18827 vsize=4440 CPUtime=0.99 cores=0,2
/proc/18829/stat : 18829 (MPhaseSAT_M) R 18827 18829 17687 0 -1 4202496 697 0 0 0 99 0 0 0 25 0 1 0 267846402 4546560 636 33554432000 134512640 134829744 4287505120 18446744073709551615 134606516 0 0 4096 1026 0 0 0 17 0 0 0 0
/proc/18829/statm: 1110 636 273 78 0 396 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 4440

Child status: 10
Real time (s): 1.03083
CPU time (s): 1.02384
CPU user time (s): 1.02184
CPU system time (s): 0.001999
CPU usage (%): 99.3219
Max. virtual memory (cumulated for all children) (KiB): 4440

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.02184
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= 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= 13
involuntary context switches= 12

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node146 at 2011-04-02 16:25:01
IDJOB=3095625
IDBENCH=82907
IDSOLVER=1522
FILE ID=node146/3095625-1301754301
RUNJOBID= node146-1301748567-17705
PBS_JOBID= 12840993
Free space on /tmp= 72160 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S261841674-082.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3095625-1301754301/watcher-3095625-1301754301 -o /tmp/evaluation-result-3095625-1301754301/solver-3095625-1301754301 -C 2400 -W 1300 -M 7680  MPhaseSAT_M HOME/instance-3095625-1301754301.cnf

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

MD5SUM BENCH= 7a466863eebd6d1afeaf2ac3e2c1a1d9
RANDOM SEED=1024581772

node146.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		: 2666.830
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		: 2666.830
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	: 5332.75
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		: 2666.830
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	: 5332.75
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		: 2666.830
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	: 5332.86
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		: 2666.830
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	: 5332.75
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		: 2666.830
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		: 2666.830
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		: 2666.830
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:      21812380 kB
Buffers:        346820 kB
Cached:       10431064 kB
SwapCached:          0 kB
Active:        7140412 kB
Inactive:      3746960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21812380 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            2196 kB
Writeback:           0 kB
AnonPages:      109156 kB
Mapped:          17024 kB
Slab:           188576 kB
PageTables:       5344 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   305956 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= 72160 MiB
End job on node146 at 2011-04-02 16:25:03