Trace number 3426833

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
sattime2011 2011-03-02SAT 0.372943 0.374124

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S874954918-011.SATISFIABLE.cnf
MD5SUMae4fafbcf9d01d37f14a04dc4a1c7430
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.021996
Satisfiable
(Un)Satisfiability was proved
Number of variables550
Number of clauses2343
Sum of the clauses size7029
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32343
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.29/0.37	c 0 clauses are redundant and removed
0.29/0.37	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.29/0.37	c 0 vars are fixed and 0 clauses are removed after lookahead
0.29/0.37	c initial seed is 1628381948
0.29/0.37	c try=1 flip j=817041 walk=709523 seed 1628381965
0.29/0.37	c A solution is found
0.29/0.37	s SATISFIABLE
0.29/0.37	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 -501 502 -503 -504 505 506 507 -508 509 -510 -511 512 513 -514 515 516 517 -518 -519 -520 521 -522 523 524 -525 -526 527 528 -529 -530 -531 532 -533 534 535 536 -537 -538 -539 -540 541 -542 543 -544 545 -546 547 548 -549 550 
0.29/0.37	v 0 
0.29/0.37	c Done (mycputime is 0 seconds)

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-3426833-1306773821/watcher-3426833-1306773821 -o /tmp/evaluation-result-3426833-1306773821/solver-3426833-1306773821 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426833-1306773821.cnf 1628378491 

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): 5100 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: 1.98 2.05 2.01 2/517 15705
/proc/meminfo: memFree=4343188/32950928 swapFree=35754236/67111528
[pid=15705] ppid=15703 vsize=1185716 CPUtime=0.01 cores=1,3,5,7
/proc/15705/stat : 15705 (sattime2011) R 15703 15705 15029 0 -1 4202496 380 0 0 0 1 0 0 0 25 0 1 0 788978803 1214173184 324 33554432000 4194304 4230460 140737226473648 18446744073709551615 4219829 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/15705/statm: 296429 324 117 9 0 293586 0

[startup+0.0224891 s]
/proc/loadavg: 1.98 2.05 2.01 2/517 15705
/proc/meminfo: memFree=4343188/32950928 swapFree=35754236/67111528
[pid=15705] ppid=15703 vsize=1185716 CPUtime=0.02 cores=1,3,5,7
/proc/15705/stat : 15705 (sattime2011) R 15703 15705 15029 0 -1 4202496 380 0 0 0 2 0 0 0 25 0 1 0 788978803 1214173184 324 33554432000 4194304 4230460 140737226473648 18446744073709551615 4217055 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/15705/statm: 296429 324 117 9 0 293586 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1185716

[startup+0.100497 s]
/proc/loadavg: 1.98 2.05 2.01 2/517 15705
/proc/meminfo: memFree=4343188/32950928 swapFree=35754236/67111528
[pid=15705] ppid=15703 vsize=1185716 CPUtime=0.09 cores=1,3,5,7
/proc/15705/stat : 15705 (sattime2011) R 15703 15705 15029 0 -1 4202496 380 0 0 0 9 0 0 0 25 0 1 0 788978803 1214173184 324 33554432000 4194304 4230460 140737226473648 18446744073709551615 4221509 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/15705/statm: 296429 324 117 9 0 293586 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185716

[startup+0.300456 s]
/proc/loadavg: 1.98 2.05 2.01 2/517 15705
/proc/meminfo: memFree=4343188/32950928 swapFree=35754236/67111528
[pid=15705] ppid=15703 vsize=1185716 CPUtime=0.29 cores=1,3,5,7
/proc/15705/stat : 15705 (sattime2011) R 15703 15705 15029 0 -1 4202496 380 0 0 0 29 0 0 0 25 0 1 0 788978803 1214173184 324 33554432000 4194304 4230460 140737226473648 18446744073709551615 254500093458 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/15705/statm: 296429 324 117 9 0 293586 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1185716

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

Child status: 10
Real time (s): 0.374124
CPU time (s): 0.372943
CPU user time (s): 0.372943
CPU system time (s): 0
CPU usage (%): 99.6843
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.372943
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= 384
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= 3

runsolver used 0.004999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node149 at 2011-05-30 18:43:41
IDJOB=3426833
IDBENCH=82805
IDSOLVER=1924
FILE ID=node149/3426833-1306773821
RUNJOBID= node149-1306761757-15048
PBS_JOBID= 13474975
Free space on /tmp= 58516 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S874954918-011.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426833-1306773821/watcher-3426833-1306773821 -o /tmp/evaluation-result-3426833-1306773821/solver-3426833-1306773821 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426833-1306773821.cnf 1628378491

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

MD5SUM BENCH= ae4fafbcf9d01d37f14a04dc4a1c7430
RANDOM SEED=1628378491

node149.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		: 2666.806
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	: 5333.61
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		: 2666.806
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		: 2666.806
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		: 2666.806
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	: 5332.73
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		: 2666.806
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	: 5332.82
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		: 2666.806
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		: 2666.806
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		: 2666.806
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:     32950928 kB
MemFree:       4343468 kB
Buffers:        276464 kB
Cached:       18691604 kB
SwapCached:      70432 kB
Active:       12140748 kB
Inactive:     15746396 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       4343468 kB
SwapTotal:    67111528 kB
SwapFree:     35754236 kB
Dirty:            7656 kB
Writeback:           0 kB
AnonPages:     8873116 kB
Mapped:          18048 kB
Slab:           532100 kB
PageTables:     118076 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 174288256 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= 58508 MiB
End job on node149 at 2011-05-30 18:43:42