Trace number 3094588

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 0.829873 0.835358

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 

0.79/0.83	c MPhaseSAT version 401 by Jingchao Chen,  April 1, 2011
0.79/0.83	c input CNF file=HOME/instance-3094588-1301759822.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#=1 clauses#=1902 
0.79/0.83	c inative var#=0 
0.79/0.83	c free var#=437  
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#=11 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 -147 149 150 -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 
0.79/0.83	v 0
0.79/0.83	c 
0.79/0.83	c  Running time=0.827874

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-3094588-1301759822/watcher-3094588-1301759822 -o /tmp/evaluation-result-3094588-1301759822/solver-3094588-1301759822 -C 2400 -W 1300 -M 7680 MPhaseSAT HOME/instance-3094588-1301759822.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: 3.98 4.00 3.96 5/193 22280
/proc/meminfo: memFree=20541140/32951124 swapFree=67111528/67111528
[pid=22280] ppid=22278 vsize=2952 CPUtime=0 cores=4,6
/proc/22280/stat : 22280 (MPhaseSAT) R 22278 22280 21142 0 -1 4194304 192 0 0 0 0 0 0 0 25 0 1 0 287580330 3022848 142 33554432000 134512640 134731564 4289443648 18446744073709551615 1838928 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/22280/statm: 738 142 122 54 0 35 0

[startup+0.0219489 s]
/proc/loadavg: 3.98 4.00 3.96 5/193 22280
/proc/meminfo: memFree=20541140/32951124 swapFree=67111528/67111528
[pid=22280] ppid=22278 vsize=3392 CPUtime=0.01 cores=4,6
/proc/22280/stat : 22280 (MPhaseSAT) R 22278 22280 21142 0 -1 4202496 457 0 0 0 1 0 0 0 25 0 1 0 287580330 3473408 395 33554432000 134512640 134731564 4289443648 18446744073709551615 134717545 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22280/statm: 848 395 269 54 0 158 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 3392

[startup+0.100952 s]
/proc/loadavg: 3.98 4.00 3.96 5/193 22280
/proc/meminfo: memFree=20541140/32951124 swapFree=67111528/67111528
[pid=22280] ppid=22278 vsize=3524 CPUtime=0.09 cores=4,6
/proc/22280/stat : 22280 (MPhaseSAT) R 22278 22280 21142 0 -1 4202496 510 0 0 0 9 0 0 0 25 0 1 0 287580330 3608576 448 33554432000 134512640 134731564 4289443648 18446744073709551615 134659672 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22280/statm: 881 448 269 54 0 191 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3524

[startup+0.300914 s]
/proc/loadavg: 3.98 4.00 3.96 5/193 22280
/proc/meminfo: memFree=20541140/32951124 swapFree=67111528/67111528
[pid=22280] ppid=22278 vsize=3788 CPUtime=0.29 cores=4,6
/proc/22280/stat : 22280 (MPhaseSAT) R 22278 22280 21142 0 -1 4202496 574 0 0 0 29 0 0 0 25 0 1 0 287580330 3878912 512 33554432000 134512640 134731564 4289443648 18446744073709551615 134720105 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22280/statm: 947 513 269 54 0 257 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3788

[startup+0.700859 s]
/proc/loadavg: 3.98 4.00 3.96 5/193 22280
/proc/meminfo: memFree=20541140/32951124 swapFree=67111528/67111528
[pid=22280] ppid=22278 vsize=4052 CPUtime=0.69 cores=4,6
/proc/22280/stat : 22280 (MPhaseSAT) R 22278 22280 21142 0 -1 4202496 642 0 0 0 69 0 0 0 25 0 1 0 287580330 4149248 580 33554432000 134512640 134731564 4289443648 18446744073709551615 2092878 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22280/statm: 1013 580 269 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+0.800824 s]
/proc/loadavg: 3.98 4.00 3.96 5/193 22280
/proc/meminfo: memFree=20541140/32951124 swapFree=67111528/67111528
[pid=22280] ppid=22278 vsize=4316 CPUtime=0.79 cores=4,6
/proc/22280/stat : 22280 (MPhaseSAT) R 22278 22280 21142 0 -1 4202496 680 0 0 0 79 0 0 0 25 0 1 0 287580330 4419584 618 33554432000 134512640 134731564 4289443648 18446744073709551615 134603349 0 0 4096 1026 0 0 0 17 4 0 0 0
/proc/22280/statm: 1079 618 272 54 0 389 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 4316

Child status: 10
Real time (s): 0.835358
CPU time (s): 0.829873
CPU user time (s): 0.827874
CPU system time (s): 0.001999
CPU usage (%): 99.3434
Max. virtual memory (cumulated for all children) (KiB): 4316

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.827874
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= 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= 0

runsolver used 0 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node132 at 2011-04-02 17:57:02
IDJOB=3094588
IDBENCH=83070
IDSOLVER=1520
FILE ID=node132/3094588-1301759822
RUNJOBID= node132-1301757100-21161
PBS_JOBID= 12841076
Free space on /tmp= 72388 MiB

SOLVER NAME= MPhaseSAT 2011-02-15
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S2088689288-085.SATISFIABLE.cnf
COMMAND LINE= MPhaseSAT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3094588-1301759822/watcher-3094588-1301759822 -o /tmp/evaluation-result-3094588-1301759822/solver-3094588-1301759822 -C 2400 -W 1300 -M 7680  MPhaseSAT HOME/instance-3094588-1301759822.cnf

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

MD5SUM BENCH= 7ba801e5e19de5d13bce0ebc43b52968
RANDOM SEED=606841831

node132.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		: 2666.833
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		: 2666.833
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	: 5332.74
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		: 2666.833
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	: 5332.76
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		: 2666.833
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		: 2666.833
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		: 2666.833
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	: 5332.67
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		: 2666.833
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	: 5332.82
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		: 2666.833
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:      20541156 kB
Buffers:        358268 kB
Cached:       11715288 kB
SwapCached:          0 kB
Active:        7316672 kB
Inactive:      4840100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20541156 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             892 kB
Writeback:           0 kB
AnonPages:       83248 kB
Mapped:          16916 kB
Slab:           191836 kB
PageTables:       5440 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   267240 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 72388 MiB
End job on node132 at 2011-04-02 17:57:03