Trace number 3094521

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 0.830872 0.831636

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S1097024859-001.SATISFIABLE.cnf
MD5SUM94bd96d1179fc3c253160c710014f1d5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.001999
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of clauses1917
Sum of the clauses size5751
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31917
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.79/0.83	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.83	c input CNF file=HOME/instance-3094521-1301758319.cnf 
0.79/0.83	c Clause#=1917  var#=450  ratio=4 
0.79/0.83	c Simplified clause#=1917 
0.79/0.83	c XOR_varElimination deleted var#=0 clauses#=1906 
0.79/0.83	c inative var#=0 
0.79/0.83	c free var#=439  
0.79/0.83	c local search on 
0.79/0.83	c A solution found by local search 
0.79/0.83	c unfixed var#=9 var#=450 
0.79/0.83	c verified 
0.79/0.83	c 
0.79/0.83	s SATISFIABLE
0.79/0.83	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 -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 
0.79/0.83	v 0
0.79/0.83	c 
0.79/0.83	c  Running time=0.828874

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-3094521-1301758319/watcher-3094521-1301758319 -o /tmp/evaluation-result-3094521-1301758319/solver-3094521-1301758319 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094521-1301758319.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: 3.92 3.98 3.90 2/182 12759
/proc/meminfo: memFree=21150952/32951124 swapFree=67111528/67111528
[pid=12759] ppid=12757 vsize=3124 CPUtime=0 cores=4,6
/proc/12759/stat : 12759 (MPhaseSAT) R 12757 12759 12344 0 -1 4202496 374 0 0 0 0 0 0 0 25 0 1 0 268247511 3198976 313 33554432000 134512640 134731564 4286572112 18446744073709551615 3057148 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/12759/statm: 815 314 238 54 0 125 0

[startup+0.0309499 s]
/proc/loadavg: 3.92 3.98 3.90 2/182 12759
/proc/meminfo: memFree=21150952/32951124 swapFree=67111528/67111528
[pid=12759] ppid=12757 vsize=3392 CPUtime=0.02 cores=4,6
/proc/12759/stat : 12759 (MPhaseSAT) R 12757 12759 12344 0 -1 4202496 466 0 0 0 2 0 0 0 25 0 1 0 268247511 3473408 405 33554432000 134512640 134731564 4286572112 18446744073709551615 3057148 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/12759/statm: 848 405 269 54 0 158 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 3392

[startup+0.100942 s]
/proc/loadavg: 3.92 3.98 3.90 2/182 12759
/proc/meminfo: memFree=21150952/32951124 swapFree=67111528/67111528
[pid=12759] ppid=12757 vsize=3524 CPUtime=0.09 cores=4,6
/proc/12759/stat : 12759 (MPhaseSAT) R 12757 12759 12344 0 -1 4202496 509 0 0 0 9 0 0 0 25 0 1 0 268247511 3608576 448 33554432000 134512640 134731564 4286572112 18446744073709551615 134720008 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/12759/statm: 881 448 269 54 0 191 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3524

[startup+0.300928 s]
/proc/loadavg: 3.92 3.98 3.90 2/182 12759
/proc/meminfo: memFree=21150952/32951124 swapFree=67111528/67111528
[pid=12759] ppid=12757 vsize=3788 CPUtime=0.29 cores=4,6
/proc/12759/stat : 12759 (MPhaseSAT) R 12757 12759 12344 0 -1 4202496 571 0 0 0 29 0 0 0 25 0 1 0 268247511 3878912 510 33554432000 134512640 134731564 4286572112 18446744073709551615 134614655 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/12759/statm: 947 510 269 54 0 257 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3788

[startup+0.700857 s]
/proc/loadavg: 3.92 3.98 3.90 2/182 12759
/proc/meminfo: memFree=21150952/32951124 swapFree=67111528/67111528
[pid=12759] ppid=12757 vsize=4052 CPUtime=0.69 cores=4,6
/proc/12759/stat : 12759 (MPhaseSAT) R 12757 12759 12344 0 -1 4202496 642 0 0 0 69 0 0 0 25 0 1 0 268247511 4149248 581 33554432000 134512640 134731564 4286572112 18446744073709551615 134659293 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/12759/statm: 1013 581 269 54 0 323 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4052

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

[startup+0.800829 s]
/proc/loadavg: 3.92 3.98 3.90 2/182 12759
/proc/meminfo: memFree=21150952/32951124 swapFree=67111528/67111528
[pid=12759] ppid=12757 vsize=4316 CPUtime=0.79 cores=4,6
/proc/12759/stat : 12759 (MPhaseSAT) R 12757 12759 12344 0 -1 4202496 680 0 0 0 79 0 0 0 25 0 1 0 268247511 4419584 619 33554432000 134512640 134731564 4286572112 18446744073709551615 134603414 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/12759/statm: 1079 619 272 54 0 389 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4316

Child status: 10
Real time (s): 0.831636
CPU time (s): 0.830872
CPU user time (s): 0.829873
CPU system time (s): 0.000999
CPU usage (%): 99.9081
Max. virtual memory (cumulated for all children) (KiB): 4316

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.829873
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= 694
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= 7

runsolver used 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node141 at 2011-04-02 17:31:59
IDJOB=3094521
IDBENCH=83003
IDSOLVER=1520
FILE ID=node141/3094521-1301758319
RUNJOBID= node141-1301757016-12363
PBS_JOBID= 12841070
Free space on /tmp= 71880 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S1097024859-001.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094521-1301758319/watcher-3094521-1301758319 -o /tmp/evaluation-result-3094521-1301758319/solver-3094521-1301758319 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094521-1301758319.cnf

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

MD5SUM BENCH= 94bd96d1179fc3c253160c710014f1d5
RANDOM SEED=1551572850

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:      21150976 kB
Buffers:        346760 kB
Cached:       11123444 kB
SwapCached:          0 kB
Active:        7464380 kB
Inactive:      4074272 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21150976 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             424 kB
Writeback:           0 kB
AnonPages:       68008 kB
Mapped:          16488 kB
Slab:           196640 kB
PageTables:       5220 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   245912 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= 71880 MiB
End job on node141 at 2011-04-02 17:32:00