Trace number 3154429

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 0.239962 0.253989

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v550-c2343-S1552308135-080.SATISFIABLE.cnf
MD5SUMbaa799a188281e763705191e4b9d6531
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.011997
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 

0.18/0.25	c 0 clauses are redundant and removed
0.18/0.25	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.18/0.25	c 0 vars are fixed and 0 clauses are removed after lookahead
0.18/0.25	c initial seed is 699545460
0.18/0.25	c try=1 flip j=533779 walk=466587 seed 699545477
0.18/0.25	c A solution is found
0.18/0.25	s SATISFIABLE
0.18/0.25	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 
0.18/0.25	v 0 
0.18/0.25	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: 977)

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-3154429-1307668518/watcher-3154429-1307668518 -o /tmp/evaluation-result-3154429-1307668518/solver-3154429-1307668518 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154429-1307668518.cnf 699545460 

running on 2 cores: 4,6

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: 1.24 1.05 1.23 4/189 11972
/proc/meminfo: memFree=32530460/32950928 swapFree=67052072/67111528
[pid=11972] ppid=11970 vsize=11796 CPUtime=0 cores=4,6
/proc/11972/stat : 11972 (runsolver) S 11970 11972 11345 0 -1 4202560 41 0 0 0 0 0 0 0 25 0 1 0 878450550 12079104 51 33554432000 4194304 5432328 140737019560960 18446744073709551615 4881591 0 2147483391 4096 24578 18446744071699977015 0 0 17 4 0 0 0
/proc/11972/statm: 2949 51 31 303 0 2643 0

[startup+0.012769 s]
/proc/loadavg: 1.24 1.05 1.23 4/189 11972
/proc/meminfo: memFree=32530460/32950928 swapFree=67052072/67111528
[pid=11972] ppid=11970 vsize=11796 CPUtime=0 cores=4,6
/proc/11972/stat : 11972 (runsolver) S 11970 11972 11345 0 -1 4202560 41 0 0 0 0 0 0 0 25 0 1 0 878450550 12079104 51 33554432000 4194304 5432328 140737019560960 18446744073709551615 4881591 0 2147483391 4096 24578 18446744071699977015 0 0 17 4 0 0 0
/proc/11972/statm: 2949 51 31 303 0 2643 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 11796

[startup+0.108868 s]
/proc/loadavg: 1.24 1.05 1.23 4/189 11972
/proc/meminfo: memFree=32530460/32950928 swapFree=67052072/67111528
[pid=11972] ppid=11970 vsize=990404 CPUtime=0.09 cores=4,6
/proc/11972/stat : 11972 (sattime) R 11970 11972 11345 0 -1 4202496 368 0 0 0 9 0 0 0 25 0 1 0 878450550 1014173696 311 33554432000 4194304 4228548 140733629115888 18446744073709551615 4217407 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/11972/statm: 247601 311 116 9 0 244758 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 990404

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

[startup+0.200841 s]
/proc/loadavg: 1.24 1.05 1.23 4/189 11972
/proc/meminfo: memFree=32530460/32950928 swapFree=67052072/67111528
[pid=11972] ppid=11970 vsize=990404 CPUtime=0.18 cores=4,6
/proc/11972/stat : 11972 (sattime) R 11970 11972 11345 0 -1 4202496 368 0 0 0 18 0 0 0 25 0 1 0 878450550 1014173696 311 33554432000 4194304 4228548 140733629115888 18446744073709551615 4218978 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/11972/statm: 247601 311 116 9 0 244758 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 990404

Child status: 10
Real time (s): 0.253989
CPU time (s): 0.239962
CPU user time (s): 0.238963
CPU system time (s): 0.000999
CPU usage (%): 94.4774
Max. virtual memory (cumulated for all children) (KiB): 990404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.238963
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= 372
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 0.002999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node120 at 2011-06-10 03:15:18
IDJOB=3154429
IDBENCH=82936
IDSOLVER=1564
FILE ID=node120/3154429-1307668518
RUNJOBID= node120-1307668513-11724
PBS_JOBID= 13549466
Free space on /tmp= 74020 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v550-c2343-S1552308135-080.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154429-1307668518/watcher-3154429-1307668518 -o /tmp/evaluation-result-3154429-1307668518/solver-3154429-1307668518 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154429-1307668518.cnf 699545460

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

MD5SUM BENCH= baa799a188281e763705191e4b9d6531
RANDOM SEED=699545460

node120.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		: 2666.809
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		: 2666.809
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	: 5226.07
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		: 2666.809
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	: 5332.82
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		: 2666.809
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		: 2666.809
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	: 5332.78
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		: 2666.809
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		: 2666.809
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		: 2666.809
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:      32530896 kB
Buffers:         60260 kB
Cached:         182592 kB
SwapCached:      11176 kB
Active:         148992 kB
Inactive:       118604 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      32530896 kB
SwapTotal:    67111528 kB
SwapFree:     67052072 kB
Dirty:           32084 kB
Writeback:           0 kB
AnonPages:       22204 kB
Mapped:           9348 kB
Slab:            87644 kB
PageTables:       5792 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3213876 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= 74012 MiB
End job on node120 at 2011-06-10 03:15:18