Trace number 3170059

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 0.506922 0.511506

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 

0.49/0.51	c 0 clauses are redundant and removed
0.49/0.51	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.49/0.51	c 0 vars are fixed and 0 clauses are removed after lookahead
0.49/0.51	c initial seed is 352752439
0.49/0.51	c try=1 flip j=1180511 walk=1051775 seed 352752456
0.49/0.51	c A solution is found
0.49/0.51	s SATISFIABLE
0.49/0.51	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 
0.49/0.51	v 0 
0.49/0.51	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-3170059-1301709557/watcher-3170059-1301709557 -o /tmp/evaluation-result-3170059-1301709557/solver-3170059-1301709557 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3170059-1301709557.cnf 352752326 

running on 2 cores: 0,2

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: 3.78 4.00 4.92 5/189 10046
/proc/meminfo: memFree=21560868/32951124 swapFree=67111528/67111528
[pid=10046] ppid=10044 vsize=880892 CPUtime=0 cores=0,2
/proc/10046/stat : 10046 (sattime+) R 10044 10046 9650 0 -1 4202496 270 0 0 0 0 0 0 0 25 0 1 0 282556115 902033408 212 33554432000 4194304 4228340 140733588768992 18446744073709551615 4206687 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10046/statm: 220223 212 104 9 0 217380 0

[startup+0.013945 s]
/proc/loadavg: 3.78 4.00 4.92 5/189 10046
/proc/meminfo: memFree=21560868/32951124 swapFree=67111528/67111528
[pid=10046] ppid=10044 vsize=881028 CPUtime=0 cores=0,2
/proc/10046/stat : 10046 (sattime+) R 10044 10046 9650 0 -1 4202496 332 0 0 0 0 0 0 0 25 0 1 0 282556115 902172672 273 33554432000 4194304 4228340 140733588768992 18446744073709551615 4218623 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10046/statm: 220257 273 116 9 0 217414 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 881028

[startup+0.100965 s]
/proc/loadavg: 3.78 4.00 4.92 5/189 10046
/proc/meminfo: memFree=21560868/32951124 swapFree=67111528/67111528
[pid=10046] ppid=10044 vsize=881028 CPUtime=0.09 cores=0,2
/proc/10046/stat : 10046 (sattime+) R 10044 10046 9650 0 -1 4202496 332 0 0 0 9 0 0 0 25 0 1 0 282556115 902172672 273 33554432000 4194304 4228340 140733588768992 18446744073709551615 4219073 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10046/statm: 220257 273 116 9 0 217414 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 881028

[startup+0.30092 s]
/proc/loadavg: 3.78 4.00 4.92 5/189 10046
/proc/meminfo: memFree=21560868/32951124 swapFree=67111528/67111528
[pid=10046] ppid=10044 vsize=881028 CPUtime=0.29 cores=0,2
/proc/10046/stat : 10046 (sattime+) R 10044 10046 9650 0 -1 4202496 332 0 0 0 29 0 0 0 25 0 1 0 282556115 902172672 273 33554432000 4194304 4228340 140733588768992 18446744073709551615 4217312 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10046/statm: 220257 273 116 9 0 217414 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 881028

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

[startup+0.500879 s]
/proc/loadavg: 3.78 4.00 4.92 5/189 10046
/proc/meminfo: memFree=21560868/32951124 swapFree=67111528/67111528
[pid=10046] ppid=10044 vsize=881028 CPUtime=0.49 cores=0,2
/proc/10046/stat : 10046 (sattime+) R 10044 10046 9650 0 -1 4202496 332 0 0 0 49 0 0 0 25 0 1 0 282556115 902172672 273 33554432000 4194304 4228340 140733588768992 18446744073709551615 4217526 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/10046/statm: 220257 273 116 9 0 217414 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 881028

Child status: 10
Real time (s): 0.511506
CPU time (s): 0.506922
CPU user time (s): 0.506922
CPU system time (s): 0
CPU usage (%): 99.1038
Max. virtual memory (cumulated for all children) (KiB): 881028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.506922
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= 337
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= 2

runsolver used 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node104 at 2011-04-02 03:59:17
IDJOB=3170059
IDBENCH=83077
IDSOLVER=1579
FILE ID=node104/3170059-1301709557
RUNJOBID= node104-1301708244-9668
PBS_JOBID= 12840838
Free space on /tmp= 71768 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S204737200-067.SATISFIABLE.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3170059-1301709557/watcher-3170059-1301709557 -o /tmp/evaluation-result-3170059-1301709557/solver-3170059-1301709557 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3170059-1301709557.cnf 352752326

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

MD5SUM BENCH= c8e689035f3179f449d681054feb5bd2
RANDOM SEED=352752326

node104.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		: 2666.855
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	: 5333.71
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		: 2666.855
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		: 2666.855
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	: 5332.67
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		: 2666.855
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	: 5332.80
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		: 2666.855
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	: 5293.18
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		: 2666.855
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		: 2666.855
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		: 2666.855
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	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      21561024 kB
Buffers:        331928 kB
Cached:       10731740 kB
SwapCached:          0 kB
Active:        7264292 kB
Inactive:      3866740 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21561024 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31652 kB
Writeback:           0 kB
AnonPages:       67352 kB
Mapped:          15276 kB
Slab:           195076 kB
PageTables:       5440 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2883844 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= 71764 MiB
End job on node104 at 2011-04-02 03:59:17