Trace number 3169178

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
shortsattime+ 2011-03-02SAT 0.023996 0.0271859

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S31329941-054.SATISFIABLE.cnf
MD5SUM9b739128337f606a6a7756556c2fd6df
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.009998
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 

0.01/0.02	c 0 clauses are redundant and removed
0.01/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.01/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.01/0.02	c initial seed is 1994972927
0.01/0.02	c try=1 flip j=48484 walk=42829 seed 1994972944
0.01/0.02	c A solution is found
0.01/0.02	s SATISFIABLE
0.01/0.02	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 
0.01/0.02	v 0 
0.01/0.02	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-3169178-1301694372/watcher-3169178-1301694372 -o /tmp/evaluation-result-3169178-1301694372/solver-3169178-1301694372 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3169178-1301694372.cnf 1994972700 

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: 4.21 4.06 3.94 5/187 9691
/proc/meminfo: memFree=21109608/32951132 swapFree=67111528/67111528
[pid=9691] ppid=9689 vsize=881028 CPUtime=0 cores=1,3
/proc/9691/stat : 9691 (shortsattime+) R 9689 9691 9043 0 -1 4202496 306 0 0 0 0 0 0 0 25 0 1 0 281035847 902172672 247 33554432000 4194304 4228340 140735280366880 18446744073709551615 242970211013 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/9691/statm: 220257 248 116 9 0 217414 0

[startup+0.016699 s]
/proc/loadavg: 4.21 4.06 3.94 5/187 9691
/proc/meminfo: memFree=21109608/32951132 swapFree=67111528/67111528
[pid=9691] ppid=9689 vsize=881028 CPUtime=0.01 cores=1,3
/proc/9691/stat : 9691 (shortsattime+) R 9689 9691 9043 0 -1 4202496 333 0 0 0 1 0 0 0 25 0 1 0 281035847 902172672 274 33554432000 4194304 4228340 140735280366880 18446744073709551615 4217683 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/9691/statm: 220257 274 116 9 0 217414 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 881028

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

[startup+0.016699 s]
/proc/loadavg: 4.21 4.06 3.94 5/187 9691
/proc/meminfo: memFree=21109608/32951132 swapFree=67111528/67111528
[pid=9691] ppid=9689 vsize=881028 CPUtime=0.01 cores=1,3
/proc/9691/stat : 9691 (shortsattime+) R 9689 9691 9043 0 -1 4202496 333 0 0 0 1 0 0 0 25 0 1 0 281035847 902172672 274 33554432000 4194304 4228340 140735280366880 18446744073709551615 4217683 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/9691/statm: 220257 274 116 9 0 217414 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 881028

Child status: 10
Real time (s): 0.0271859
CPU time (s): 0.023996
CPU user time (s): 0.023996
CPU system time (s): 0
CPU usage (%): 88.2663
Max. virtual memory (cumulated for all children) (KiB): 881028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.023996
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= 338
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 0.001999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node128 at 2011-04-01 23:46:12
IDJOB=3169178
IDBENCH=82796
IDSOLVER=1578
FILE ID=node128/3169178-1301694372
RUNJOBID= node128-1301690424-9063
PBS_JOBID= 12840708
Free space on /tmp= 70964 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S31329941-054.SATISFIABLE.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169178-1301694372/watcher-3169178-1301694372 -o /tmp/evaluation-result-3169178-1301694372/solver-3169178-1301694372 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3169178-1301694372.cnf 1994972700

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

MD5SUM BENCH= 9b739128337f606a6a7756556c2fd6df
RANDOM SEED=1994972700

node128.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		: 2666.852
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	: 5333.70
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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		: 2666.852
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	: 5434.49
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21109764 kB
Buffers:        334764 kB
Cached:       11120856 kB
SwapCached:          0 kB
Active:        7986216 kB
Inactive:      3579928 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21109764 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           23976 kB
Writeback:           0 kB
AnonPages:      110712 kB
Mapped:          15632 kB
Slab:           212900 kB
PageTables:       5892 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:  2911016 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= 70956 MiB
End job on node128 at 2011-04-01 23:46:12