Trace number 3169448

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 0.592909 0.597475

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S1280860344-022.SATISFIABLE.cnf
MD5SUM52f4c2549736f42ae4f40e4dd45d91d0
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.003999
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 

0.49/0.59	c 0 clauses are redundant and removed
0.49/0.59	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.49/0.59	c 0 vars are fixed and 0 clauses are removed after lookahead
0.49/0.59	c initial seed is 1457635818
0.49/0.59	c try=1 flip j=1492763 walk=1363224 seed 1457635835
0.49/0.59	c A solution is found
0.49/0.59	s SATISFIABLE
0.49/0.59	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 
0.49/0.59	v 0 
0.49/0.59	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-3169448-1301709482/watcher-3169448-1301709482 -o /tmp/evaluation-result-3169448-1301709482/solver-3169448-1301709482 -C 2400 -W 1300 -M 7680 shortsattime+ HOME/instance-3169448-1301709482.cnf 1457635591 

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: 3.42 4.39 5.83 5/185 14049
/proc/meminfo: memFree=21660860/32951124 swapFree=67111528/67111528
[pid=14049] ppid=14047 vsize=880892 CPUtime=0 cores=4,6
/proc/14049/stat : 14049 (shortsattime+) R 14047 14049 13994 0 -1 4202496 271 0 0 0 0 0 0 0 23 0 1 0 263364472 902033408 213 33554432000 4194304 4228340 140737313629008 18446744073709551615 4206697 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/14049/statm: 220223 213 104 9 0 217380 0

[startup+0.0230389 s]
/proc/loadavg: 3.42 4.39 5.83 5/185 14049
/proc/meminfo: memFree=21660860/32951124 swapFree=67111528/67111528
[pid=14049] ppid=14047 vsize=881028 CPUtime=0.01 cores=4,6
/proc/14049/stat : 14049 (shortsattime+) R 14047 14049 13994 0 -1 4202496 333 0 0 0 1 0 0 0 23 0 1 0 263364472 902172672 274 33554432000 4194304 4228340 140737313629008 18446744073709551615 4218608 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/14049/statm: 220257 274 116 9 0 217414 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 881028

[startup+0.101012 s]
/proc/loadavg: 3.42 4.39 5.83 5/185 14049
/proc/meminfo: memFree=21660860/32951124 swapFree=67111528/67111528
[pid=14049] ppid=14047 vsize=881028 CPUtime=0.09 cores=4,6
/proc/14049/stat : 14049 (shortsattime+) R 14047 14049 13994 0 -1 4202496 333 0 0 0 9 0 0 0 23 0 1 0 263364472 902172672 274 33554432000 4194304 4228340 140737313629008 18446744073709551615 4217907 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/14049/statm: 220257 274 116 9 0 217414 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 881028

[startup+0.300977 s]
/proc/loadavg: 3.42 4.39 5.83 5/185 14049
/proc/meminfo: memFree=21660860/32951124 swapFree=67111528/67111528
[pid=14049] ppid=14047 vsize=881028 CPUtime=0.29 cores=4,6
/proc/14049/stat : 14049 (shortsattime+) R 14047 14049 13994 0 -1 4202496 333 0 0 0 29 0 0 0 25 0 1 0 263364472 902172672 274 33554432000 4194304 4228340 140737313629008 18446744073709551615 4216845 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/14049/statm: 220257 274 116 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+0.50094 s]
/proc/loadavg: 3.42 4.39 5.83 5/185 14049
/proc/meminfo: memFree=21660860/32951124 swapFree=67111528/67111528
[pid=14049] ppid=14047 vsize=881028 CPUtime=0.49 cores=4,6
/proc/14049/stat : 14049 (shortsattime+) R 14047 14049 13994 0 -1 4202496 333 0 0 0 49 0 0 0 25 0 1 0 263364472 902172672 274 33554432000 4194304 4228340 140737313629008 18446744073709551615 4217520 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/14049/statm: 220257 274 116 9 0 217414 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 881028

Child status: 10
Real time (s): 0.597475
CPU time (s): 0.592909
CPU user time (s): 0.592909
CPU system time (s): 0
CPU usage (%): 99.2358
Max. virtual memory (cumulated for all children) (KiB): 881028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.592909
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= 1

runsolver used 0 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node146 at 2011-04-02 03:58:02
IDJOB=3169448
IDBENCH=83066
IDSOLVER=1578
FILE ID=node146/3169448-1301709482
RUNJOBID= node146-1301709482-14013
PBS_JOBID= 12840874
Free space on /tmp= 71968 MiB

SOLVER NAME= shortsattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S1280860344-022.SATISFIABLE.cnf
COMMAND LINE= shortsattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169448-1301709482/watcher-3169448-1301709482 -o /tmp/evaluation-result-3169448-1301709482/solver-3169448-1301709482 -C 2400 -W 1300 -M 7680  shortsattime+ HOME/instance-3169448-1301709482.cnf 1457635591

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

MD5SUM BENCH= 52f4c2549736f42ae4f40e4dd45d91d0
RANDOM SEED=1457635591

node146.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		: 2666.830
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	: 5333.66
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.86
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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:      21662256 kB
Buffers:        341500 kB
Cached:       10627332 kB
SwapCached:          0 kB
Active:        7192436 kB
Inactive:      3841500 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      21662256 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           28456 kB
Writeback:           0 kB
AnonPages:       64108 kB
Mapped:          15496 kB
Slab:           190464 kB
PageTables:       6184 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  1981936 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= 71952 MiB
End job on node146 at 2011-04-02 03:58:03