Trace number 3157090

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 0.011998 0.0163251

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 benchmark0.010997
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 

0.00/0.01	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 2118415365
0.00/0.01	c try=1 flip j=16074 walk=13878 seed 2118415382
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 -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 
0.00/0.01	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-3157090-1301682048/watcher-3157090-1301682048 -o /tmp/evaluation-result-3157090-1301682048/solver-3157090-1301682048 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157090-1301682048.cnf 2118408578 

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: 3.97 4.00 3.91 5/189 4124
/proc/meminfo: memFree=21216880/32950928 swapFree=67111528/67111528
[pid=4124] ppid=4122 vsize=1185580 CPUtime=0 cores=1,3
/proc/4124/stat : 4124 (shortsattime201) R 4122 4124 3530 0 -1 4202496 276 0 0 0 0 0 0 0 25 0 1 0 279803533 1214033920 217 33554432000 4194304 4230460 140735628791728 18446744073709551615 4207504 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/4124/statm: 296395 217 103 9 0 293552 0

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

Child status: 10
Real time (s): 0.0163251
CPU time (s): 0.011998
CPU user time (s): 0.011998
CPU system time (s): 0
CPU usage (%): 73.4943
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.011998
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= 386
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 0.002999 second user time and 0.002999 second system time

The end

Launcher Data 

Begin job on node126 at 2011-04-01 20:20:48
IDJOB=3157090
IDBENCH=82805
IDSOLVER=1566
FILE ID=node126/3157090-1301682048
RUNJOBID= node126-1301678137-3550
PBS_JOBID= 12840571
Free space on /tmp= 71312 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S874954918-011.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157090-1301682048/watcher-3157090-1301682048 -o /tmp/evaluation-result-3157090-1301682048/solver-3157090-1301682048 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157090-1301682048.cnf 2118408578

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

MD5SUM BENCH= ae4fafbcf9d01d37f14a04dc4a1c7430
RANDOM SEED=2118408578

node126.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		: 2666.783
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	: 5333.56
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		: 2666.783
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		: 2666.783
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	: 5332.74
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		: 2666.783
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	: 5332.74
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		: 2666.783
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	: 5332.80
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		: 2666.783
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		: 2666.783
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		: 2666.783
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:     32950928 kB
MemFree:      21217160 kB
Buffers:        338004 kB
Cached:       11059888 kB
SwapCached:          0 kB
Active:        7329220 kB
Inactive:      4138104 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      21217160 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7788 kB
Writeback:           0 kB
AnonPages:       69368 kB
Mapped:          15328 kB
Slab:           203036 kB
PageTables:       5628 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3798504 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= 71304 MiB
End job on node126 at 2011-04-01 20:20:48