Trace number 3169784

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 0.764883 0.765471

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v500-c2130-S481747904-003.SATISFIABLE.cnf
MD5SUM1e904bd81be11487c7596e10e18e4cd6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.063989
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 

0.69/0.76	c 0 clauses are redundant and removed
0.69/0.76	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.69/0.76	c 0 vars are fixed and 0 clauses are removed after lookahead
0.69/0.76	c initial seed is 1113256239
0.69/0.76	c try=1 flip j=1796817 walk=1607162 seed 1113256256
0.69/0.76	c A solution is found
0.69/0.76	s SATISFIABLE
0.69/0.76	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 
0.69/0.76	v 0 
0.69/0.76	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-3169784-1301694351/watcher-3169784-1301694351 -o /tmp/evaluation-result-3169784-1301694351/solver-3169784-1301694351 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3169784-1301694351.cnf 1113256126 

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: 4.02 4.01 3.91 5/189 10276
/proc/meminfo: memFree=19898400/32951124 swapFree=67111528/67111528
[pid=10276] ppid=10274 vsize=881028 CPUtime=0 cores=1,3
/proc/10276/stat : 10276 (sattime+) R 10274 10276 9494 0 -1 4202496 332 0 0 0 0 0 0 0 25 0 1 0 261850410 902172672 273 33554432000 4194304 4228340 140733443063312 18446744073709551615 4214658 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10276/statm: 220257 273 116 9 0 217414 0

[startup+0.012586 s]
/proc/loadavg: 4.02 4.01 3.91 5/189 10276
/proc/meminfo: memFree=19898400/32951124 swapFree=67111528/67111528
[pid=10276] ppid=10274 vsize=881028 CPUtime=0.01 cores=1,3
/proc/10276/stat : 10276 (sattime+) R 10274 10276 9494 0 -1 4202496 332 0 0 0 1 0 0 0 25 0 1 0 261850410 902172672 273 33554432000 4194304 4228340 140733443063312 18446744073709551615 4217210 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10276/statm: 220257 273 116 9 0 217414 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 881028

[startup+0.10057 s]
/proc/loadavg: 4.02 4.01 3.91 5/189 10276
/proc/meminfo: memFree=19898400/32951124 swapFree=67111528/67111528
[pid=10276] ppid=10274 vsize=881028 CPUtime=0.09 cores=1,3
/proc/10276/stat : 10276 (sattime+) R 10274 10276 9494 0 -1 4202496 332 0 0 0 9 0 0 0 25 0 1 0 261850410 902172672 273 33554432000 4194304 4228340 140733443063312 18446744073709551615 4217336 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10276/statm: 220257 273 116 9 0 217414 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 881028

[startup+0.300535 s]
/proc/loadavg: 4.02 4.01 3.91 5/189 10276
/proc/meminfo: memFree=19898400/32951124 swapFree=67111528/67111528
[pid=10276] ppid=10274 vsize=881028 CPUtime=0.29 cores=1,3
/proc/10276/stat : 10276 (sattime+) R 10274 10276 9494 0 -1 4202496 332 0 0 0 29 0 0 0 25 0 1 0 261850410 902172672 273 33554432000 4194304 4228340 140733443063312 18446744073709551615 4218980 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10276/statm: 220257 273 116 9 0 217414 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 881028

[startup+0.700464 s]
/proc/loadavg: 4.02 4.01 3.91 5/189 10276
/proc/meminfo: memFree=19898400/32951124 swapFree=67111528/67111528
[pid=10276] ppid=10274 vsize=881028 CPUtime=0.69 cores=1,3
/proc/10276/stat : 10276 (sattime+) R 10274 10276 9494 0 -1 4202496 332 0 0 0 69 0 0 0 25 0 1 0 261850410 902172672 273 33554432000 4194304 4228340 140733443063312 18446744073709551615 4218940 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/10276/statm: 220257 273 116 9 0 217414 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 881028

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

Child status: 10
Real time (s): 0.765471
CPU time (s): 0.764883
CPU user time (s): 0.762884
CPU system time (s): 0.001999
CPU usage (%): 99.9232
Max. virtual memory (cumulated for all children) (KiB): 881028

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.762884
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= 337
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= 9

runsolver used 0.000999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node140 at 2011-04-01 23:45:51
IDJOB=3169784
IDBENCH=82802
IDSOLVER=1579
FILE ID=node140/3169784-1301694351
RUNJOBID= node140-1301690420-9514
PBS_JOBID= 12840696
Free space on /tmp= 71332 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v500-c2130-S481747904-003.SATISFIABLE.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169784-1301694351/watcher-3169784-1301694351 -o /tmp/evaluation-result-3169784-1301694351/solver-3169784-1301694351 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3169784-1301694351.cnf 1113256126

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

MD5SUM BENCH= 1e904bd81be11487c7596e10e18e4cd6
RANDOM SEED=1113256126

node140.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		: 2666.833
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		: 2666.833
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	: 5226.14
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		: 2666.833
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		: 2666.833
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	: 5332.77
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		: 2666.833
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		: 2666.833
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	: 5332.74
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		: 2666.833
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		: 2666.833
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:      19898556 kB
Buffers:        355048 kB
Cached:       12349020 kB
SwapCached:          0 kB
Active:        7534576 kB
Inactive:      5238100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19898556 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           24236 kB
Writeback:           0 kB
AnonPages:       68588 kB
Mapped:          15336 kB
Slab:           214892 kB
PageTables:       5420 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2881000 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= 71324 MiB
End job on node140 at 2011-04-01 23:45:52