Trace number 3157296

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 0.007998 0.00830707

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S9113894-047.SATISFIABLE.cnf
MD5SUMc18e380499d0835f10de248aeec99cf2
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 

0.00/0.00	c 0 clauses are redundant and removed
0.00/0.00	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.00/0.00	c 0 vars are fixed and 0 clauses are removed after lookahead
0.00/0.00	c initial seed is 1595740012
0.00/0.00	c try=1 flip j=5801 walk=5136 seed 1595740029
0.00/0.00	c A solution is found
0.00/0.00	s SATISFIABLE
0.00/0.00	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 
0.00/0.00	v 0 
0.00/0.00	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-3157296-1301684038/watcher-3157296-1301684038 -o /tmp/evaluation-result-3157296-1301684038/solver-3157296-1301684038 -C 2400 -W 1300 -M 7680 shortsattime2011 HOME/instance-3157296-1301684038.cnf 1595733225 

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: 4.03 4.00 3.96 4/189 3824
/proc/meminfo: memFree=21966824/32950928 swapFree=67111528/67111528
[pid=3824] ppid=3822 vsize=1185716 CPUtime=0 cores=0,2
/proc/3824/stat : 3824 (shortsattime201) R 3822 3824 2541 0 -1 4202496 371 0 0 0 0 0 0 0 25 0 1 0 280002619 1214173184 311 33554432000 4194304 4230460 140737378793936 18446744073709551615 4223884 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/3824/statm: 296429 311 117 9 0 293586 0

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

Child status: 10
Real time (s): 0.00830707
CPU time (s): 0.007998
CPU user time (s): 0.007998
CPU system time (s): 0
CPU usage (%): 96.2794
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.007998
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= 375
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 node122 at 2011-04-01 20:53:58
IDJOB=3157296
IDBENCH=83011
IDSOLVER=1566
FILE ID=node122/3157296-1301684038
RUNJOBID= node122-1301678144-2560
PBS_JOBID= 12840575
Free space on /tmp= 71612 MiB

SOLVER NAME= shortsattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S9113894-047.SATISFIABLE.cnf
COMMAND LINE= shortsattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3157296-1301684038/watcher-3157296-1301684038 -o /tmp/evaluation-result-3157296-1301684038/solver-3157296-1301684038 -C 2400 -W 1300 -M 7680  shortsattime2011 HOME/instance-3157296-1301684038.cnf 1595733225

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

MD5SUM BENCH= c18e380499d0835f10de248aeec99cf2
RANDOM SEED=1595733225

node122.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		: 2666.820
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	: 5333.64
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		: 2666.820
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		: 2666.820
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	: 5332.75
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		: 2666.820
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	: 5332.83
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		: 2666.820
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	: 5332.75
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.97
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      21967104 kB
Buffers:        335716 kB
Cached:       10319904 kB
SwapCached:          0 kB
Active:        6937852 kB
Inactive:      3788020 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      21967104 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7928 kB
Writeback:           0 kB
AnonPages:       70832 kB
Mapped:          15548 kB
Slab:           193888 kB
PageTables:       5484 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:  3798988 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= 71604 MiB
End job on node122 at 2011-04-01 20:53:58