Trace number 3157362

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
shortsattime2011 2011-03-02SAT 0.107983 0.108699

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S204737200-067.SATISFIABLE.cnf
MD5SUMc8e689035f3179f449d681054feb5bd2
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 

0.10/0.10	c 0 clauses are redundant and removed
0.10/0.10	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.10/0.10	c 0 vars are fixed and 0 clauses are removed after lookahead
0.10/0.10	c initial seed is 1294261411
0.10/0.10	c try=1 flip j=232335 walk=200684 seed 1294261428
0.10/0.10	c A solution is found
0.10/0.10	s SATISFIABLE
0.10/0.10	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 
0.10/0.10	v 0 
0.10/0.10	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-3157362-1301685132/watcher-3157362-1301685132 -o /tmp/evaluation-result-3157362-1301685132/solver-3157362-1301685132 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157362-1301685132.cnf 1294254624 

running on 2 cores: 1,3

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: 0.92 1.53 2.68 4/189 10323
/proc/meminfo: memFree=20210424/32951124 swapFree=67111528/67111528
[pid=10323] ppid=10321 vsize=1185716 CPUtime=0 cores=1,3
/proc/10323/stat : 10323 (shortsattime201) R 10321 10323 9032 0 -1 4202496 369 0 0 0 0 0 0 0 25 0 1 0 280111662 1214173184 310 33554432000 4194304 4230460 140736148943504 18446744073709551615 4219829 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10323/statm: 296429 310 117 9 0 293586 0

[startup+0.040965 s]
/proc/loadavg: 0.92 1.53 2.68 4/189 10323
/proc/meminfo: memFree=20210424/32951124 swapFree=67111528/67111528
[pid=10323] ppid=10321 vsize=1185716 CPUtime=0.04 cores=1,3
/proc/10323/stat : 10323 (shortsattime201) R 10321 10323 9032 0 -1 4202496 369 0 0 0 4 0 0 0 25 0 1 0 280111662 1214173184 310 33554432000 4194304 4230460 140736148943504 18446744073709551615 4200389 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10323/statm: 296429 310 117 9 0 293586 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1185716

[startup+0.100955 s]
/proc/loadavg: 0.92 1.53 2.68 4/189 10323
/proc/meminfo: memFree=20210424/32951124 swapFree=67111528/67111528
[pid=10323] ppid=10321 vsize=1185716 CPUtime=0.1 cores=1,3
/proc/10323/stat : 10323 (shortsattime201) R 10321 10323 9032 0 -1 4202496 369 0 0 0 10 0 0 0 25 0 1 0 280111662 1214173184 310 33554432000 4194304 4230460 140736148943504 18446744073709551615 4201616 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10323/statm: 296429 310 117 9 0 293586 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1185716

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

Child status: 10
Real time (s): 0.108699
CPU time (s): 0.107983
CPU user time (s): 0.107983
CPU system time (s): 0
CPU usage (%): 99.3413
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.107983
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 373
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= 1

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node130 at 2011-04-01 21:12:12
IDJOB=3157362
IDBENCH=83077
IDSOLVER=1566
FILE ID=node130/3157362-1301685132
RUNJOBID= node130-1301685131-10256
PBS_JOBID= 12840567
Free space on /tmp= 71232 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S204737200-067.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157362-1301685132/watcher-3157362-1301685132 -o /tmp/evaluation-result-3157362-1301685132/solver-3157362-1301685132 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157362-1301685132.cnf 1294254624

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

MD5SUM BENCH= c8e689035f3179f449d681054feb5bd2
RANDOM SEED=1294254624

node130.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	: 5332.83
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	: 5332.81
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	: 5332.75
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		: 2666.838
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	: 5332.83
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	: 5332.75
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		: 2666.838
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	: 5332.81
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      20210580 kB
Buffers:        346172 kB
Cached:       12053336 kB
SwapCached:          0 kB
Active:        7836280 kB
Inactive:      4630116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      20210580 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31080 kB
Writeback:           0 kB
AnonPages:       66068 kB
Mapped:          15216 kB
Slab:           210900 kB
PageTables:       5488 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3799240 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= 71224 MiB
End job on node130 at 2011-04-01 21:12:12