Trace number 3375087

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
MPhaseSAT64 2011-05-14 (fixed)SAT 0.802877 0.802764

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S31329941-054.SATISFIABLE.cnf
MD5SUM9b739128337f606a6a7756556c2fd6df
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009998
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 

0.79/0.80	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.79/0.80	c input CNF file=HOME/instance-3375087-1305449302.cnf 
0.79/0.80	c Clause#=2130  var#=500  ratio=4 
0.79/0.80	c Simplified clause#=2130 
0.79/0.80	c XOR_varElimination deleted var#=1 clauses#=2129 
0.79/0.80	c inative var#=0 
0.79/0.80	c free var#=482  
0.79/0.80	c local search on 
0.79/0.80	c A solution found by local search 
0.79/0.80	c unfixed var#=18 var#=500 
0.79/0.80	c verified 
0.79/0.80	c 
0.79/0.80	s SATISFIABLE
0.79/0.80	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 -155 157 158 159 -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 -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 -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 -361 364 365 -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 
0.79/0.80	v 0
0.79/0.80	c 
0.79/0.80	c  Running time=0.800879

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3375087-1305449302/watcher-3375087-1305449302 -o /tmp/evaluation-result-3375087-1305449302/solver-3375087-1305449302 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375087-1305449302.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: 4.17 4.05 3.78 4/376 13634
/proc/meminfo: memFree=25401488/32951124 swapFree=63083164/67111528
[pid=13634] ppid=13632 vsize=12344 CPUtime=0.01 cores=4,6
/proc/13634/stat : 13634 (MPhaseSAT64) R 13632 13634 12848 0 -1 4202496 553 0 0 0 1 0 0 0 25 0 1 0 637345814 12640256 492 33554432000 4194304 4479436 140734333397696 18446744073709551615 4363025 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/13634/statm: 3086 492 311 70 0 206 0

[startup+0.100322 s]
/proc/loadavg: 4.17 4.05 3.78 4/376 13634
/proc/meminfo: memFree=25401488/32951124 swapFree=63083164/67111528
[pid=13634] ppid=13632 vsize=12760 CPUtime=0.09 cores=4,6
/proc/13634/stat : 13634 (MPhaseSAT64) R 13632 13634 12848 0 -1 4202496 655 0 0 0 9 0 0 0 25 0 1 0 637345814 13066240 594 33554432000 4194304 4479436 140734333397696 18446744073709551615 4451947 0 0 4096 1026 0 0 0 17 6 0 0 0
/proc/13634/statm: 3190 594 325 70 0 310 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12760

[startup+0.200303 s]
/proc/loadavg: 4.17 4.05 3.78 4/376 13634
/proc/meminfo: memFree=25401488/32951124 swapFree=63083164/67111528
[pid=13634] ppid=13632 vsize=13472 CPUtime=0.19 cores=4,6
/proc/13634/stat : 13634 (MPhaseSAT64) R 13632 13634 12848 0 -1 4202496 849 0 0 0 19 0 0 0 25 0 1 0 637345814 13795328 788 33554432000 4194304 4479436 140734333397696 18446744073709551615 4450952 0 0 4096 1026 0 0 0 17 6 0 0 0
/proc/13634/statm: 3368 788 325 70 0 488 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 13472

[startup+0.300285 s]
/proc/loadavg: 4.17 4.05 3.78 4/376 13634
/proc/meminfo: memFree=25401488/32951124 swapFree=63083164/67111528
[pid=13634] ppid=13632 vsize=13736 CPUtime=0.29 cores=4,6
/proc/13634/stat : 13634 (MPhaseSAT64) R 13632 13634 12848 0 -1 4202496 915 0 0 0 29 0 0 0 25 0 1 0 637345814 14065664 854 33554432000 4194304 4479436 140734333397696 18446744073709551615 4451088 0 0 4096 1026 0 0 0 17 6 0 0 0
/proc/13634/statm: 3434 854 325 70 0 554 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13736

[startup+0.70021 s]
/proc/loadavg: 4.17 4.05 3.78 4/376 13634
/proc/meminfo: memFree=25401488/32951124 swapFree=63083164/67111528
[pid=13634] ppid=13632 vsize=14768 CPUtime=0.69 cores=4,6
/proc/13634/stat : 13634 (MPhaseSAT64) R 13632 13634 12848 0 -1 4202496 1269 0 0 0 69 0 0 0 25 0 1 0 637345814 15122432 1112 33554432000 4194304 4479436 140734333397696 18446744073709551615 4452031 0 0 4096 1026 0 0 0 17 6 0 0 0
/proc/13634/statm: 3692 1112 325 70 0 812 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14768

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

[startup+0.800202 s]
/proc/loadavg: 4.17 4.05 3.78 4/376 13634
/proc/meminfo: memFree=25401488/32951124 swapFree=63083164/67111528
[pid=13634] ppid=13632 vsize=12696 CPUtime=0.79 cores=4,6
/proc/13634/stat : 13634 (MPhaseSAT64) R 13632 13634 12848 0 -1 4202496 1274 0 0 0 79 0 0 0 25 0 1 0 637345814 13000704 598 33554432000 4194304 4479436 140734333397696 18446744073709551615 264726404864 0 0 4096 1026 0 0 0 17 6 0 0 0
/proc/13634/statm: 3174 598 328 70 0 294 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 12696

Child status: 10
Real time (s): 0.802764
CPU time (s): 0.802877
CPU user time (s): 0.800878
CPU system time (s): 0.001999
CPU usage (%): 100.014
Max. virtual memory (cumulated for all children) (KiB): 14768

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.800878
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= 1282
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= 4
involuntary context switches= 9

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node141 at 2011-05-15 10:48:22
IDJOB=3375087
IDBENCH=82796
IDSOLVER=1855
FILE ID=node141/3375087-1305449302
RUNJOBID= node141-1305447989-13396
PBS_JOBID= 13324841
Free space on /tmp= 73356 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S31329941-054.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375087-1305449302/watcher-3375087-1305449302 -o /tmp/evaluation-result-3375087-1305449302/solver-3375087-1305449302 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375087-1305449302.cnf

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

MD5SUM BENCH= 9b739128337f606a6a7756556c2fd6df
RANDOM SEED=94316849

node141.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	: 5362.96
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	: 5332.82
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		: 2666.806
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	: 5332.75
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		: 2666.806
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	: 5332.84
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	: 5332.75
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		: 2666.806
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:     32951124 kB
MemFree:      25401520 kB
Buffers:        255676 kB
Cached:        5033516 kB
SwapCached:      15708 kB
Active:        2155396 kB
Inactive:      5152420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      25401520 kB
SwapTotal:    67111528 kB
SwapFree:     63083164 kB
Dirty:            1352 kB
Writeback:           0 kB
AnonPages:     2010344 kB
Mapped:          13800 kB
Slab:           138000 kB
PageTables:      38620 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 86344424 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= 73356 MiB
End job on node141 at 2011-05-15 10:48:23