Trace number 3427094

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
sattime2011 2011-03-02SAT 0.069989 0.0701869

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 benchmark0.013997
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 

0.04/0.07	c 0 clauses are redundant and removed
0.04/0.07	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.04/0.07	c 0 vars are fixed and 0 clauses are removed after lookahead
0.04/0.07	c initial seed is 1641038379
0.04/0.07	c try=1 flip j=144774 walk=124159 seed 1641038396
0.04/0.07	c A solution is found
0.04/0.07	s SATISFIABLE
0.04/0.07	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 
0.04/0.07	v 0 
0.04/0.07	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3427094-1306784128/watcher-3427094-1306784128 -o /tmp/evaluation-result-3427094-1306784128/solver-3427094-1306784128 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3427094-1306784128.cnf 1641034922 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.91 1.98 1.99 2/413 12277
/proc/meminfo: memFree=6567436/32950928 swapFree=53457208/67111528
[pid=12277] ppid=12275 vsize=1185716 CPUtime=0.01 cores=0,2,4,6
/proc/12277/stat : 12277 (sattime2011) R 12275 12277 10994 0 -1 4202496 368 0 0 0 1 0 0 0 25 0 1 0 246022200 1214173184 311 33554432000 4194304 4230460 140736538642240 18446744073709551615 218879965770 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/12277/statm: 296429 311 117 9 0 293586 0

[startup+0.0448339 s]
/proc/loadavg: 1.91 1.98 1.99 2/413 12277
/proc/meminfo: memFree=6567436/32950928 swapFree=53457208/67111528
[pid=12277] ppid=12275 vsize=1185716 CPUtime=0.04 cores=0,2,4,6
/proc/12277/stat : 12277 (sattime2011) R 12275 12277 10994 0 -1 4202496 368 0 0 0 4 0 0 0 25 0 1 0 246022200 1214173184 311 33554432000 4194304 4230460 140736538642240 18446744073709551615 4221520 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/12277/statm: 296429 311 117 9 0 293586 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1185716

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

[startup+0.0448339 s]
/proc/loadavg: 1.91 1.98 1.99 2/413 12277
/proc/meminfo: memFree=6567436/32950928 swapFree=53457208/67111528
[pid=12277] ppid=12275 vsize=1185716 CPUtime=0.04 cores=0,2,4,6
/proc/12277/stat : 12277 (sattime2011) R 12275 12277 10994 0 -1 4202496 368 0 0 0 4 0 0 0 25 0 1 0 246022200 1214173184 311 33554432000 4194304 4230460 140736538642240 18446744073709551615 4221520 0 0 4096 0 0 0 0 17 2 0 0 0
/proc/12277/statm: 296429 311 117 9 0 293586 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1185716

Child status: 10
Real time (s): 0.0701869
CPU time (s): 0.069989
CPU user time (s): 0.069989
CPU system time (s): 0
CPU usage (%): 99.7181
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.069989
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= 372
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 0.003999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node112 at 2011-05-30 21:35:28
IDJOB=3427094
IDBENCH=83066
IDSOLVER=1924
FILE ID=node112/3427094-1306784128
RUNJOBID= node112-1306779126-12053
PBS_JOBID= 13475012
Free space on /tmp= 58008 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S1280860344-022.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3427094-1306784128/watcher-3427094-1306784128 -o /tmp/evaluation-result-3427094-1306784128/solver-3427094-1306784128 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3427094-1306784128.cnf 1641034922

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 52f4c2549736f42ae4f40e4dd45d91d0
RANDOM SEED=1641034922

node112.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		: 2666.847
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	: 5333.69
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		: 2666.847
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	: 5180.45
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		: 2666.847
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	: 5332.76
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		: 2666.847
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	: 5332.82
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		: 2666.847
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	: 5332.61
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		: 2666.847
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		: 2666.847
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	: 5332.74
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		: 2666.847
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:       6567608 kB
Buffers:        300412 kB
Cached:       23239860 kB
SwapCached:      62268 kB
Active:       18805036 kB
Inactive:      6898892 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:       6567608 kB
SwapTotal:    67111528 kB
SwapFree:     53457208 kB
Dirty:            7816 kB
Writeback:           0 kB
AnonPages:     2109628 kB
Mapped:          15940 kB
Slab:           553132 kB
PageTables:      59152 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS: 98646568 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= 58000 MiB
End job on node112 at 2011-05-30 21:35:28