Trace number 3250300

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 1.27581 1.28014

General information on the benchmark

Namecrafted/kullmann/GreenTao/
GreenTaok1k2/GreenTao_2-4-4_511.cnf
MD5SUM766a362c83d920a8f8dd49df62ed42c9
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.072988
Satisfiable
(Un)Satisfiability was proved
Number of variables509
Number of clauses4478
Sum of the clauses size17912
Maximum clause length4
Minimum clause length4
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 44478
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.19/1.27	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
1.19/1.27	c input CNF file=HOME/instance-3250300-1303543825.cnf 
1.19/1.27	c Clause#=4478  var#=509  ratio=8 
1.19/1.27	c Simplified clause#=4478 
1.19/1.27	c XOR_varElimination deleted var#=0 clauses#=4478 
1.19/1.27	c inative var#=0 
1.19/1.27	c free var#=509  
1.19/1.27	c local search on 
1.19/1.27	c A solution found by local search 
1.19/1.27	c unfixed var#=0 var#=509 
1.19/1.27	c verified 
1.19/1.27	c 
1.19/1.27	s SATISFIABLE
1.19/1.27	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 -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 -501 -502 -503 -504 505 506 -507 -508 -509 
1.19/1.27	v 0
1.19/1.27	c 
1.19/1.27	c  Running time=1.273807

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

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-3250300-1303543825/watcher-3250300-1303543825 -o /tmp/evaluation-result-3250300-1303543825/solver-3250300-1303543825 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3250300-1303543825.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: 1.00 2.33 3.20 3/176 1634
/proc/meminfo: memFree=20544500/32951124 swapFree=67110396/67111528
[pid=1634] ppid=1632 vsize=11800 CPUtime=0 cores=5,7
/proc/1634/stat : 1634 (runsolver) R 1632 1634 709 0 -1 4202560 41 0 0 0 0 0 0 0 22 0 1 0 544613132 12083200 51 33554432000 4194304 5434984 140736404178512 18446744073709551615 4881607 0 2147483391 4096 24578 0 0 0 17 7 0 0 0
/proc/1634/statm: 2950 51 31 303 0 2644 0

[startup+0.00788196 s]
/proc/loadavg: 1.00 2.33 3.20 3/176 1634
/proc/meminfo: memFree=20544500/32951124 swapFree=67110396/67111528
[pid=1634] ppid=1632 vsize=3040 CPUtime=0 cores=5,7
/proc/1634/stat : 1634 (MPhaseSAT) R 1632 1634 709 0 -1 4202496 321 0 0 0 0 0 0 0 22 0 1 0 544613132 3112960 263 33554432000 134512640 134731564 4288650112 18446744073709551615 6854208 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/1634/statm: 760 263 225 54 0 70 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 3040

[startup+0.10092 s]
/proc/loadavg: 1.00 2.33 3.20 3/176 1634
/proc/meminfo: memFree=20544500/32951124 swapFree=67110396/67111528
[pid=1634] ppid=1632 vsize=3912 CPUtime=0.09 cores=5,7
/proc/1634/stat : 1634 (MPhaseSAT) R 1632 1634 709 0 -1 4202496 582 0 0 0 9 0 0 0 22 0 1 0 544613132 4005888 517 33554432000 134512640 134731564 4288650112 18446744073709551615 134719936 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/1634/statm: 978 517 268 54 0 288 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3912

[startup+0.300868 s]
/proc/loadavg: 1.00 2.33 3.20 3/176 1634
/proc/meminfo: memFree=20544500/32951124 swapFree=67110396/67111528
[pid=1634] ppid=1632 vsize=4176 CPUtime=0.29 cores=5,7
/proc/1634/stat : 1634 (MPhaseSAT) R 1632 1634 709 0 -1 4202496 648 0 0 0 29 0 0 0 23 0 1 0 544613132 4276224 583 33554432000 134512640 134731564 4288650112 18446744073709551615 134659334 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/1634/statm: 1044 583 268 54 0 354 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4176

[startup+0.700801 s]
/proc/loadavg: 1.00 2.33 3.20 3/176 1634
/proc/meminfo: memFree=20544500/32951124 swapFree=67110396/67111528
[pid=1634] ppid=1632 vsize=4440 CPUtime=0.69 cores=5,7
/proc/1634/stat : 1634 (MPhaseSAT) R 1632 1634 709 0 -1 4202496 742 0 0 0 69 0 0 0 25 0 1 0 544613132 4546560 677 33554432000 134512640 134731564 4288650112 18446744073709551615 134720177 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/1634/statm: 1110 677 268 54 0 420 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4440

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

[startup+1.10675 s]
/proc/loadavg: 1.00 2.33 3.20 5/184 1649
/proc/meminfo: memFree=20475940/32951124 swapFree=67110396/67111528
[pid=1634] ppid=1632 vsize=4840 CPUtime=1.1 cores=5,7
/proc/1634/stat : 1634 (MPhaseSAT) R 1632 1634 709 0 -1 4202496 826 0 0 0 110 0 0 0 25 0 1 0 544613132 4956160 761 33554432000 134512640 134731564 4288650112 18446744073709551615 134605860 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/1634/statm: 1210 761 271 54 0 520 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 4840

[startup+1.20073 s]
/proc/loadavg: 1.00 2.33 3.20 5/184 1649
/proc/meminfo: memFree=20475940/32951124 swapFree=67110396/67111528
[pid=1634] ppid=1632 vsize=4840 CPUtime=1.19 cores=5,7
/proc/1634/stat : 1634 (MPhaseSAT) R 1632 1634 709 0 -1 4202496 826 0 0 0 119 0 0 0 25 0 1 0 544613132 4956160 761 33554432000 134512640 134731564 4288650112 18446744073709551615 134605669 0 0 4096 1026 0 0 0 17 5 0 0 0
/proc/1634/statm: 1210 761 271 54 0 520 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 4840

Child status: 10
Real time (s): 1.28014
CPU time (s): 1.27581
CPU user time (s): 1.27481
CPU system time (s): 0.000999
CPU usage (%): 99.6616
Max. virtual memory (cumulated for all children) (KiB): 4840

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.27481
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= 836
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= 5

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node118 at 2011-04-23 09:30:25
IDJOB=3250300
IDBENCH=83250
IDSOLVER=1520
FILE ID=node118/3250300-1303543825
RUNJOBID= node118-1303543825-1621
PBS_JOBID= 13143120
Free space on /tmp= 71744 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/crafted/kullmann/GreenTao/GreenTaok1k2/GreenTao_2-4-4_511.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3250300-1303543825/watcher-3250300-1303543825 -o /tmp/evaluation-result-3250300-1303543825/solver-3250300-1303543825 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3250300-1303543825.cnf

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

MD5SUM BENCH= 766a362c83d920a8f8dd49df62ed42c9
RANDOM SEED=1058756282

node118.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		: 2666.842
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	: 5333.68
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		: 2666.842
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		: 2666.842
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	: 5332.74
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		: 2666.842
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		: 2666.842
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	: 5332.68
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		: 2666.842
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		: 2666.842
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		: 2666.842
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	: 5374.59
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20544772 kB
Buffers:       1855152 kB
Cached:        9962220 kB
SwapCached:        600 kB
Active:        8443332 kB
Inactive:      3442248 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20544772 kB
SwapTotal:    67111528 kB
SwapFree:     67110396 kB
Dirty:             460 kB
Writeback:           0 kB
AnonPages:       66828 kB
Mapped:          14580 kB
Slab:           457268 kB
PageTables:       5120 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   194964 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= 71700 MiB
End job on node118 at 2011-04-23 09:30:26