Trace number 3221918

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 0.829873 0.831034

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 benchmark0.003999
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_M version 401 suited for random catagory by Jingchao Chen,  April 1,2011 
0.79/0.83	c input CNF file=HOME/instance-3221918-1303298722.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) 2010-2011 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-3221918-1303298722/watcher-3221918-1303298722 -o /tmp/evaluation-result-3221918-1303298722/solver-3221918-1303298722 -C 5000 -W 5000 -M 15500 MPhaseSAT_M HOME/instance-3221918-1303298722.cnf 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 6657
/proc/meminfo: memFree=17163212/32950928 swapFree=67111528/67111528
[pid=6657] ppid=6655 vsize=3224 CPUtime=0 cores=1,3,5,7
/proc/6657/stat : 6657 (MPhaseSAT_M) R 6655 6657 5820 0 -1 4202496 373 0 0 0 0 0 0 0 25 0 1 0 441472024 3301376 314 33554432000 134512640 134829744 4290808544 18446744073709551615 11638268 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/6657/statm: 806 314 238 78 0 92 0

[startup+0.00885097 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 6657
/proc/meminfo: memFree=17163212/32950928 swapFree=67111528/67111528
[pid=6657] ppid=6655 vsize=3360 CPUtime=0 cores=1,3,5,7
/proc/6657/stat : 6657 (MPhaseSAT_M) R 6655 6657 5820 0 -1 4202496 374 0 0 0 0 0 0 0 25 0 1 0 441472024 3440640 315 33554432000 134512640 134829744 4290808544 18446744073709551615 134579989 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/6657/statm: 840 315 238 78 0 126 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 3360

[startup+0.100835 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 6657
/proc/meminfo: memFree=17163212/32950928 swapFree=67111528/67111528
[pid=6657] ppid=6655 vsize=3624 CPUtime=0.09 cores=1,3,5,7
/proc/6657/stat : 6657 (MPhaseSAT_M) R 6655 6657 5820 0 -1 4202496 511 0 0 0 9 0 0 0 25 0 1 0 441472024 3710976 452 33554432000 134512640 134829744 4290808544 18446744073709551615 134678512 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/6657/statm: 906 452 271 78 0 192 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3624

[startup+0.300799 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 6657
/proc/meminfo: memFree=17163212/32950928 swapFree=67111528/67111528
[pid=6657] ppid=6655 vsize=3888 CPUtime=0.29 cores=1,3,5,7
/proc/6657/stat : 6657 (MPhaseSAT_M) R 6655 6657 5820 0 -1 4202496 572 0 0 0 29 0 0 0 25 0 1 0 441472024 3981312 513 33554432000 134512640 134829744 4290808544 18446744073709551615 134717854 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/6657/statm: 972 513 271 78 0 258 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3888

[startup+0.700729 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 6657
/proc/meminfo: memFree=17163212/32950928 swapFree=67111528/67111528
[pid=6657] ppid=6655 vsize=4152 CPUtime=0.69 cores=1,3,5,7
/proc/6657/stat : 6657 (MPhaseSAT_M) R 6655 6657 5820 0 -1 4202496 643 0 0 0 69 0 0 0 25 0 1 0 441472024 4251648 584 33554432000 134512640 134829744 4290808544 18446744073709551615 134661405 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/6657/statm: 1038 584 271 78 0 324 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4152

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

[startup+0.800711 s]
/proc/loadavg: 2.00 2.00 2.00 2/177 6657
/proc/meminfo: memFree=17163212/32950928 swapFree=67111528/67111528
[pid=6657] ppid=6655 vsize=4416 CPUtime=0.79 cores=1,3,5,7
/proc/6657/stat : 6657 (MPhaseSAT_M) R 6655 6657 5820 0 -1 4202496 681 0 0 0 79 0 0 0 25 0 1 0 441472024 4521984 622 33554432000 134512640 134829744 4290808544 18446744073709551615 134603582 0 0 4096 1026 0 0 0 17 1 0 0 0
/proc/6657/statm: 1104 622 274 78 0 390 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4416

Child status: 10
Real time (s): 0.831034
CPU time (s): 0.829873
CPU user time (s): 0.826874
CPU system time (s): 0.002999
CPU usage (%): 99.8603
Max. virtual memory (cumulated for all children) (KiB): 4416

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.826874
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= 695
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= 1

runsolver used 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node123 at 2011-04-20 13:25:22
IDJOB=3221918
IDBENCH=83003
IDSOLVER=1637
FILE ID=node123/3221918-1303298722
RUNJOBID= node123-1303291017-5839
PBS_JOBID= 13049622
Free space on /tmp= 72504 MiB

SOLVER NAME= MPhaseSAT_M 2011-02-16
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S1097024859-001.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT_M BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3221918-1303298722/watcher-3221918-1303298722 -o /tmp/evaluation-result-3221918-1303298722/solver-3221918-1303298722 -C 5000 -W 5000 -M 15500  MPhaseSAT_M HOME/instance-3221918-1303298722.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 94bd96d1179fc3c253160c710014f1d5
RANDOM SEED=1244106079

node123.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		: 2666.838
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	: 5333.67
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		: 2666.838
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	: 5226.15
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		: 2666.838
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		: 2666.838
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	: 5332.82
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		: 2666.838
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	: 5332.74
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		: 2666.838
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	: 5332.80
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		: 2666.838
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	: 5332.74
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		: 2666.838
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      17163368 kB
Buffers:        672824 kB
Cached:       14417916 kB
SwapCached:          0 kB
Active:        6206008 kB
Inactive:      9240928 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      17163368 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             512 kB
Writeback:           0 kB
AnonPages:      356252 kB
Mapped:          16524 kB
Slab:           276716 kB
PageTables:       4868 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   525696 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= 72504 MiB
End job on node123 at 2011-04-20 13:25:23