Trace number 3169393

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
shortsattime+ 2011-03-02SAT 0.010997 0.0106489

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S9113894-047.SATISFIABLE.cnf
MD5SUMc18e380499d0835f10de248aeec99cf2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005999
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 

0.00/0.01	c 0 clauses are redundant and removed
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.01	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.01	c initial seed is 2088942087
0.00/0.01	c try=1 flip j=13406 walk=11945 seed 2088942104
0.00/0.01	c A solution is found
0.00/0.01	s SATISFIABLE
0.00/0.01	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 -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 -450 451 452 453 -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 
0.00/0.01	v 0 
0.00/0.01	c Done (mycputime is 0 seconds)

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-3169393-1301708249/watcher-3169393-1301708249 -o /tmp/evaluation-result-3169393-1301708249/solver-3169393-1301708249 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3169393-1301708249.cnf 2088941860 

running on 2 cores: 5,7

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: 6.28 7.56 7.78 4/189 11292
/proc/meminfo: memFree=21526992/32951124 swapFree=67111528/67111528
[pid=11292] ppid=11290 vsize=881028 CPUtime=0 cores=5,7
/proc/11292/stat : 11292 (shortsattime+) R 11290 11292 11070 0 -1 4202496 332 0 0 0 0 0 0 0 25 0 1 0 263241040 902172672 273 33554432000 4194304 4228340 140737174369840 18446744073709551615 4217565 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/11292/statm: 220257 273 116 9 0 217414 0

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

Child status: 10
Real time (s): 0.0106489
CPU time (s): 0.010997
CPU user time (s): 0.008998
CPU system time (s): 0.001999
CPU usage (%): 103.269
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.008998
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= 337
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= 2
involuntary context switches= 0

runsolver used 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node144 at 2011-04-02 03:37:29
IDJOB=3169393
IDBENCH=83011
IDSOLVER=1578
FILE ID=node144/3169393-1301708249
RUNJOBID= node144-1301708233-11091
PBS_JOBID= 12840837
Free space on /tmp= 71120 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S9113894-047.SATISFIABLE.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169393-1301708249/watcher-3169393-1301708249 -o /tmp/evaluation-result-3169393-1301708249/solver-3169393-1301708249 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3169393-1301708249.cnf 2088941860

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

MD5SUM BENCH= c18e380499d0835f10de248aeec99cf2
RANDOM SEED=2088941860

node144.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		: 2666.850
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	: 5333.70
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		: 2666.850
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	: 5226.16
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		: 2666.850
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		: 2666.850
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	: 5332.83
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		: 2666.850
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	: 5332.75
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		: 2666.850
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	: 5332.82
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		: 2666.850
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		: 2666.850
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	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21527272 kB
Buffers:        345944 kB
Cached:       10734272 kB
SwapCached:          0 kB
Active:        8168988 kB
Inactive:      2978332 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21527272 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31656 kB
Writeback:           0 kB
AnonPages:       66820 kB
Mapped:          15328 kB
Slab:           212832 kB
PageTables:       5440 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2880508 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= 71112 MiB
End job on node144 at 2011-04-02 03:37:29