Trace number 3375361

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 0.772882 0.772755

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S2088689288-085.SATISFIABLE.cnf
MD5SUM7ba801e5e19de5d13bce0ebc43b52968
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012998
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 

0.69/0.77	c MPhaseSAT64 version 514 by Jingchao Chen,  May 13,2011
0.69/0.77	c input CNF file=HOME/instance-3375361-1305450162.cnf 
0.69/0.77	c Clause#=1917  var#=450  ratio=4 
0.69/0.77	c Simplified clause#=1917 
0.69/0.77	c XOR_varElimination deleted var#=1 clauses#=1902 
0.69/0.77	c inative var#=0 
0.69/0.77	c free var#=437  
0.69/0.77	c local search on 
0.69/0.77	c A solution found by local search 
0.69/0.77	c unfixed var#=11 var#=450 
0.69/0.77	c verified 
0.69/0.77	c 
0.69/0.77	s SATISFIABLE
0.69/0.77	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 -147 149 150 -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 
0.69/0.77	v 0
0.69/0.77	c 
0.69/0.77	c  Running time=0.770884

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-3375361-1305450162/watcher-3375361-1305450162 -o /tmp/evaluation-result-3375361-1305450162/solver-3375361-1305450162 -C 2400 -W 1300 -M 7680 MPhaseSAT64 HOME/instance-3375361-1305450162.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: 1.01 2.24 3.12 4/294 15775
/proc/meminfo: memFree=18749984/32951132 swapFree=67093824/67111528
[pid=15775] ppid=15773 vsize=12204 CPUtime=0 cores=4,6
/proc/15775/stat : 15775 (MPhaseSAT64) R 15773 15775 15028 0 -1 4202496 435 0 0 0 0 0 0 0 25 0 1 0 656615819 12496896 375 33554432000 4194304 4479436 140735091674592 18446744073709551615 4267376 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/15775/statm: 3051 375 281 70 0 171 0

[startup+0.0453689 s]
/proc/loadavg: 1.01 2.24 3.12 4/294 15775
/proc/meminfo: memFree=18749984/32951132 swapFree=67093824/67111528
[pid=15775] ppid=15773 vsize=12584 CPUtime=0.04 cores=4,6
/proc/15775/stat : 15775 (MPhaseSAT64) R 15773 15775 15028 0 -1 4202496 621 0 0 0 4 0 0 0 25 0 1 0 656615819 12886016 560 33554432000 4194304 4479436 140735091674592 18446744073709551615 4451962 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/15775/statm: 3146 560 325 70 0 266 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 12584

[startup+0.10131 s]
/proc/loadavg: 1.01 2.24 3.12 4/294 15775
/proc/meminfo: memFree=18749984/32951132 swapFree=67093824/67111528
[pid=15775] ppid=15773 vsize=12920 CPUtime=0.09 cores=4,6
/proc/15775/stat : 15775 (MPhaseSAT64) R 15773 15775 15028 0 -1 4202496 701 0 0 0 9 0 0 0 25 0 1 0 656615819 13230080 640 33554432000 4194304 4479436 140735091674592 18446744073709551615 4380278 0 0 4096 1026 0 0 0 17 6 0 0 0
/proc/15775/statm: 3230 640 325 70 0 350 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12920

[startup+0.300278 s]
/proc/loadavg: 1.01 2.24 3.12 4/294 15775
/proc/meminfo: memFree=18749984/32951132 swapFree=67093824/67111528
[pid=15775] ppid=15773 vsize=13964 CPUtime=0.29 cores=4,6
/proc/15775/stat : 15775 (MPhaseSAT64) R 15773 15775 15028 0 -1 4202496 978 0 0 0 29 0 0 0 25 0 1 0 656615819 14299136 917 33554432000 4194304 4479436 140735091674592 18446744073709551615 4450994 0 0 4096 1026 0 0 0 17 6 0 0 0
/proc/15775/statm: 3491 917 325 70 0 611 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 13964

[startup+0.700209 s]
/proc/loadavg: 1.01 2.24 3.12 4/294 15775
/proc/meminfo: memFree=18749984/32951132 swapFree=67093824/67111528
[pid=15775] ppid=15773 vsize=14608 CPUtime=0.69 cores=4,6
/proc/15775/stat : 15775 (MPhaseSAT64) R 15773 15775 15028 0 -1 4202496 1267 0 0 0 69 0 0 0 25 0 1 0 656615819 14958592 1078 33554432000 4194304 4479436 140735091674592 18446744073709551615 4451020 0 0 4096 1026 0 0 0 17 6 0 0 0
/proc/15775/statm: 3652 1078 325 70 0 772 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14608

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

Child status: 10
Real time (s): 0.772755
CPU time (s): 0.772882
CPU user time (s): 0.768883
CPU system time (s): 0.003999
CPU usage (%): 100.016
Max. virtual memory (cumulated for all children) (KiB): 14608

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.768883
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1279
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 0.005999 second system time

The end

Launcher Data 

Begin job on node131 at 2011-05-15 11:02:42
IDJOB=3375361
IDBENCH=83070
IDSOLVER=1855
FILE ID=node131/3375361-1305450162
RUNJOBID= node131-1305450160-15653
PBS_JOBID= 13324857
Free space on /tmp= 73708 MiB

SOLVER NAME= MPhaseSAT64 2011-05-14 (fixed)
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S2088689288-085.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT64 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3375361-1305450162/watcher-3375361-1305450162 -o /tmp/evaluation-result-3375361-1305450162/solver-3375361-1305450162 -C 2400 -W 1300 -M 7680  MPhaseSAT64 HOME/instance-3375361-1305450162.cnf

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

MD5SUM BENCH= 7ba801e5e19de5d13bce0ebc43b52968
RANDOM SEED=202125128

node131.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	: 5332.83
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	: 5332.75
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		: 2666.830
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	: 5332.77
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      18750124 kB
Buffers:        284020 kB
Cached:        3928556 kB
SwapCached:       1504 kB
Active:       10763804 kB
Inactive:      3179328 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      18750124 kB
SwapTotal:    67111528 kB
SwapFree:     67093824 kB
Dirty:            1508 kB
Writeback:          36 kB
AnonPages:     9728772 kB
Mapped:          27712 kB
Slab:           164640 kB
PageTables:      31684 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS: 28068020 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73708 MiB
End job on node131 at 2011-05-15 11:02:43