Trace number 3154400

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 2.53761 2.53823

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S261841674-082.SATISFIABLE.cnf
MD5SUM7a466863eebd6d1afeaf2ac3e2c1a1d9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.928857
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 

2.49/2.53	c 0 clauses are redundant and removed
2.49/2.53	c 0 vars are fixed and 0 clauses are removed after unit propagation
2.49/2.53	c 0 vars are fixed and 0 clauses are removed after lookahead
2.49/2.53	c initial seed is 313804820
2.49/2.53	c try=1 flip j=6009772 walk=5268859 seed 313804837
2.49/2.53	c A solution is found
2.49/2.53	s SATISFIABLE
2.49/2.53	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 
2.49/2.53	v 0 
2.49/2.53	c Done (mycputime is 2 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-3154400-1301683402/watcher-3154400-1301683402 -o /tmp/evaluation-result-3154400-1301683402/solver-3154400-1301683402 -C 2400 -W 1300 -M 7680 sattime HOME/instance-3154400-1301683402.cnf 313804820 

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: 3.94 3.99 3.93 4/189 17851
/proc/meminfo: memFree=21107036/32951124 swapFree=67111528/67111528
[pid=17851] ppid=17849 vsize=990404 CPUtime=0 cores=4,6
/proc/17851/stat : 17851 (sattime) R 17849 17851 17108 0 -1 4202496 357 0 0 0 0 0 0 0 25 0 1 0 260756076 1014173696 298 33554432000 4194304 4228548 140734183296112 18446744073709551615 4216826 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17851/statm: 247601 298 116 9 0 244758 0

[startup+0.0477921 s]
/proc/loadavg: 3.94 3.99 3.93 4/189 17851
/proc/meminfo: memFree=21107036/32951124 swapFree=67111528/67111528
[pid=17851] ppid=17849 vsize=990404 CPUtime=0.04 cores=4,6
/proc/17851/stat : 17851 (sattime) R 17849 17851 17108 0 -1 4202496 357 0 0 0 4 0 0 0 25 0 1 0 260756076 1014173696 298 33554432000 4194304 4228548 140734183296112 18446744073709551615 4216753 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17851/statm: 247601 298 116 9 0 244758 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 990404

[startup+0.100784 s]
/proc/loadavg: 3.94 3.99 3.93 4/189 17851
/proc/meminfo: memFree=21107036/32951124 swapFree=67111528/67111528
[pid=17851] ppid=17849 vsize=990404 CPUtime=0.1 cores=4,6
/proc/17851/stat : 17851 (sattime) R 17849 17851 17108 0 -1 4202496 357 0 0 0 10 0 0 0 25 0 1 0 260756076 1014173696 298 33554432000 4194304 4228548 140734183296112 18446744073709551615 220815638761 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17851/statm: 247601 298 116 9 0 244758 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 990404

[startup+0.300758 s]
/proc/loadavg: 3.94 3.99 3.93 4/189 17851
/proc/meminfo: memFree=21107036/32951124 swapFree=67111528/67111528
[pid=17851] ppid=17849 vsize=990404 CPUtime=0.3 cores=4,6
/proc/17851/stat : 17851 (sattime) R 17849 17851 17108 0 -1 4202496 357 0 0 0 30 0 0 0 25 0 1 0 260756076 1014173696 298 33554432000 4194304 4228548 140734183296112 18446744073709551615 4217469 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17851/statm: 247601 298 116 9 0 244758 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 990404

[startup+0.700672 s]
/proc/loadavg: 3.94 3.99 3.93 4/189 17851
/proc/meminfo: memFree=21107036/32951124 swapFree=67111528/67111528
[pid=17851] ppid=17849 vsize=990404 CPUtime=0.7 cores=4,6
/proc/17851/stat : 17851 (sattime) R 17849 17851 17108 0 -1 4202496 357 0 0 0 70 0 0 0 25 0 1 0 260756076 1014173696 298 33554432000 4194304 4228548 140734183296112 18446744073709551615 4218880 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17851/statm: 247601 298 116 9 0 244758 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 990404

[startup+1.5005 s]
/proc/loadavg: 3.94 3.99 3.93 5/190 17852
/proc/meminfo: memFree=21105528/32951124 swapFree=67111528/67111528
[pid=17851] ppid=17849 vsize=990404 CPUtime=1.49 cores=4,6
/proc/17851/stat : 17851 (sattime) R 17849 17851 17108 0 -1 4202496 357 0 0 0 149 0 0 0 25 0 1 0 260756076 1014173696 298 33554432000 4194304 4228548 140734183296112 18446744073709551615 4217515 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17851/statm: 247601 298 116 9 0 244758 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 990404

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

[startup+2.30036 s]
/proc/loadavg: 3.94 3.99 3.93 5/190 17852
/proc/meminfo: memFree=21105156/32951124 swapFree=67111528/67111528
[pid=17851] ppid=17849 vsize=990404 CPUtime=2.29 cores=4,6
/proc/17851/stat : 17851 (sattime) R 17849 17851 17108 0 -1 4202496 357 0 0 0 229 0 0 0 25 0 1 0 260756076 1014173696 298 33554432000 4194304 4228548 140734183296112 18446744073709551615 4217280 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17851/statm: 247601 298 116 9 0 244758 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 990404

[startup+2.50034 s]
/proc/loadavg: 3.94 3.99 3.93 5/190 17852
/proc/meminfo: memFree=21105156/32951124 swapFree=67111528/67111528
[pid=17851] ppid=17849 vsize=990404 CPUtime=2.49 cores=4,6
/proc/17851/stat : 17851 (sattime) R 17849 17851 17108 0 -1 4202496 357 0 0 0 249 0 0 0 25 0 1 0 260756076 1014173696 298 33554432000 4194304 4228548 140734183296112 18446744073709551615 4219058 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/17851/statm: 247601 298 116 9 0 244758 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 990404

Child status: 10
Real time (s): 2.53823
CPU time (s): 2.53761
CPU user time (s): 2.53561
CPU system time (s): 0.001999
CPU usage (%): 99.9757
Max. virtual memory (cumulated for all children) (KiB): 990404

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.53561
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 361
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= 28

runsolver used 0.001999 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node147 at 2011-04-01 20:43:22
IDJOB=3154400
IDBENCH=82907
IDSOLVER=1564
FILE ID=node147/3154400-1301683402
RUNJOBID= node147-1301678135-17127
PBS_JOBID= 12840556
Free space on /tmp= 71484 MiB

SOLVER NAME= sattime 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S261841674-082.SATISFIABLE.cnf
COMMAND LINE= sattime BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3154400-1301683402/watcher-3154400-1301683402 -o /tmp/evaluation-result-3154400-1301683402/solver-3154400-1301683402 -C 2400 -W 1300 -M 7680  sattime HOME/instance-3154400-1301683402.cnf 313804820

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

MD5SUM BENCH= 7a466863eebd6d1afeaf2ac3e2c1a1d9
RANDOM SEED=313804820

node147.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		: 2666.836
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	: 5333.67
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		: 2666.836
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		: 2666.836
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		: 2666.836
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		: 2666.836
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		: 2666.836
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	: 5332.76
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		: 2666.836
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		: 2666.836
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:     32951124 kB
MemFree:      21107316 kB
Buffers:        349404 kB
Cached:       11154808 kB
SwapCached:          0 kB
Active:        7155724 kB
Inactive:      4418560 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21107316 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           11724 kB
Writeback:           0 kB
AnonPages:       69948 kB
Mapped:          15312 kB
Slab:           206016 kB
PageTables:       5656 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  3211076 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= 71476 MiB
End job on node147 at 2011-04-01 20:43:24