Trace number 3500011

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
sattime+ 2011-03-02SAT 0.170973 0.172708

General information on the benchmark

NameSAT02/handmade/simon/
satex-challenges/f600.shuffled.cnf
MD5SUMd42133fd7674f41611be43d1b8ca7db6
Bench CategoryCRAFTED (crafted 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 variables600
Number of clauses2550
Sum of the clauses size7650
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 32550
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.09/0.17	c 0 clauses are redundant and removed
0.09/0.17	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.09/0.17	c 0 vars are fixed and 0 clauses are removed after lookahead
0.09/0.17	c initial seed is 743161075
0.09/0.17	c try=1 flip j=384245 walk=341010 seed 743161092
0.09/0.17	c A solution is found
0.09/0.17	s SATISFIABLE
0.09/0.17	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 -551 552 -553 554 -555 556 -557 -558 -559 560 -561 562 -563 -564 -565 566 -567 -568 -569 570 571 572 573 -574 575 -576 -577 -578 579 -580 581 -582 -583 -584 -585 -586 -587 588 589 -590 591 592 593 594 595 -596 597 -598 599 600 
0.09/0.17	v 0 
0.09/0.17	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

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-3500011-1307984577/watcher-3500011-1307984577 -o /tmp/evaluation-result-3500011-1307984577/solver-3500011-1307984577 -C 5000 -W 5100 -M 15500 sattime+ HOME/instance-3500011-1307984577.cnf 743160962 

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: 1.70 1.94 1.98 2/171 29744
/proc/meminfo: memFree=11976072/32951132 swapFree=67054624/67111528
[pid=29744] ppid=29742 vsize=881028 CPUtime=0 cores=1,3,5,7
/proc/29744/stat : 29744 (sattime+) R 29742 29744 29599 0 -1 4202496 352 0 0 0 0 0 0 0 25 0 1 0 910057359 902172672 293 33554432000 4194304 4228340 140734410158752 18446744073709551615 4216733 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/29744/statm: 220257 293 116 9 0 217414 0

[startup+0.0437809 s]
/proc/loadavg: 1.70 1.94 1.98 2/171 29744
/proc/meminfo: memFree=11976072/32951132 swapFree=67054624/67111528
[pid=29744] ppid=29742 vsize=881028 CPUtime=0.04 cores=1,3,5,7
/proc/29744/stat : 29744 (sattime+) R 29742 29744 29599 0 -1 4202496 352 0 0 0 4 0 0 0 25 0 1 0 910057359 902172672 293 33554432000 4194304 4228340 140734410158752 18446744073709551615 4214613 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/29744/statm: 220257 293 116 9 0 217414 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 881028

[startup+0.10077 s]
/proc/loadavg: 1.70 1.94 1.98 2/171 29744
/proc/meminfo: memFree=11976072/32951132 swapFree=67054624/67111528
[pid=29744] ppid=29742 vsize=881028 CPUtime=0.09 cores=1,3,5,7
/proc/29744/stat : 29744 (sattime+) R 29742 29744 29599 0 -1 4202496 352 0 0 0 9 0 0 0 25 0 1 0 910057359 902172672 293 33554432000 4194304 4228340 140734410158752 18446744073709551615 4217683 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/29744/statm: 220257 293 116 9 0 217414 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 881028

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

Child status: 10
Real time (s): 0.172708
CPU time (s): 0.170973
CPU user time (s): 0.169974
CPU system time (s): 0.000999
CPU usage (%): 98.9955
Max. virtual memory (cumulated for all children) (KiB): 881028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.169974
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 356
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 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node131 at 2011-06-13 19:02:57
IDJOB=3500011
IDBENCH=87732
IDSOLVER=1996
FILE ID=node131/3500011-1307984577
RUNJOBID= node131-1307984576-29618
PBS_JOBID= 13559730
Free space on /tmp= 56576 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT02/handmade/simon/satex-challenges/f600.shuffled.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3500011-1307984577/watcher-3500011-1307984577 -o /tmp/evaluation-result-3500011-1307984577/solver-3500011-1307984577 -C 5000 -W 5100 -M 15500  sattime+ HOME/instance-3500011-1307984577.cnf 743160962

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

MD5SUM BENCH= d42133fd7674f41611be43d1b8ca7db6
RANDOM SEED=743160962

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:      11976756 kB
Buffers:        347700 kB
Cached:       19914268 kB
SwapCached:       9816 kB
Active:       15675804 kB
Inactive:      4606400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      11976756 kB
SwapTotal:    67111528 kB
SwapFree:     67054624 kB
Dirty:           15804 kB
Writeback:          16 kB
AnonPages:       18048 kB
Mapped:          12680 kB
Slab:           626196 kB
PageTables:       4260 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:   190640 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= 56568 MiB
End job on node131 at 2011-06-13 19:02:57