Trace number 3169945

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 0.699892 0.700524

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S222128792-011.SATISFIABLE.cnf
MD5SUMafacdefc4a366ba0b827e7e74ce8af4c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.007998
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of clauses1917
Sum of the clauses size5751
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31917
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.59/0.70	c 0 clauses are redundant and removed
0.59/0.70	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.59/0.70	c 0 vars are fixed and 0 clauses are removed after lookahead
0.59/0.70	c initial seed is 177318458
0.59/0.70	c try=1 flip j=1644009 walk=1455970 seed 177318475
0.59/0.70	c A solution is found
0.59/0.70	s SATISFIABLE
0.59/0.70	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 
0.59/0.70	v 0 
0.59/0.70	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-3169945-1301705193/watcher-3169945-1301705193 -o /tmp/evaluation-result-3169945-1301705193/solver-3169945-1301705193 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3169945-1301705193.cnf 177318345 

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: 1.63 2.92 3.55 6/178 9728
/proc/meminfo: memFree=22217440/32951124 swapFree=67111528/67111528
[pid=9728] ppid=9724 vsize=880896 CPUtime=0 cores=0,2
/proc/9728/stat : 9728 (sattime+) R 9724 9728 8728 0 -1 4202496 321 0 0 0 0 0 0 0 20 0 1 0 282121642 902037504 262 33554432000 4194304 4228340 140734879726736 18446744073709551615 4218535 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/9728/statm: 220224 262 116 9 0 217381 0

[startup+0.030803 s]
/proc/loadavg: 1.63 2.92 3.55 6/178 9728
/proc/meminfo: memFree=22217440/32951124 swapFree=67111528/67111528
[pid=9728] ppid=9724 vsize=880896 CPUtime=0.02 cores=0,2
/proc/9728/stat : 9728 (sattime+) R 9724 9728 8728 0 -1 4202496 321 0 0 0 2 0 0 0 20 0 1 0 282121642 902037504 262 33554432000 4194304 4228340 140734879726736 18446744073709551615 4218815 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/9728/statm: 220224 262 116 9 0 217381 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 880896

[startup+0.100812 s]
/proc/loadavg: 1.63 2.92 3.55 6/178 9728
/proc/meminfo: memFree=22217440/32951124 swapFree=67111528/67111528
[pid=9728] ppid=9724 vsize=880896 CPUtime=0.09 cores=0,2
/proc/9728/stat : 9728 (sattime+) R 9724 9728 8728 0 -1 4202496 321 0 0 0 9 0 0 0 20 0 1 0 282121642 902037504 262 33554432000 4194304 4228340 140734879726736 18446744073709551615 4217651 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/9728/statm: 220224 262 116 9 0 217381 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 880896

[startup+0.300807 s]
/proc/loadavg: 1.63 2.92 3.55 6/178 9728
/proc/meminfo: memFree=22217440/32951124 swapFree=67111528/67111528
[pid=9728] ppid=9724 vsize=880896 CPUtime=0.29 cores=0,2
/proc/9728/stat : 9728 (sattime+) R 9724 9728 8728 0 -1 4202496 321 0 0 0 29 0 0 0 21 0 1 0 282121642 902037504 262 33554432000 4194304 4228340 140734879726736 18446744073709551615 4217315 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/9728/statm: 220224 262 116 9 0 217381 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 880896

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

[startup+0.500741 s]
/proc/loadavg: 1.63 2.92 3.55 6/178 9728
/proc/meminfo: memFree=22217440/32951124 swapFree=67111528/67111528
[pid=9728] ppid=9724 vsize=880896 CPUtime=0.49 cores=0,2
/proc/9728/stat : 9728 (sattime+) R 9724 9728 8728 0 -1 4202496 321 0 0 0 49 0 0 0 21 0 1 0 282121642 902037504 262 33554432000 4194304 4228340 140734879726736 18446744073709551615 4217301 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/9728/statm: 220224 262 116 9 0 217381 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 880896

[startup+0.600714 s]
/proc/loadavg: 1.63 2.92 3.55 6/178 9728
/proc/meminfo: memFree=22217440/32951124 swapFree=67111528/67111528
[pid=9728] ppid=9724 vsize=880896 CPUtime=0.59 cores=0,2
/proc/9728/stat : 9728 (sattime+) R 9724 9728 8728 0 -1 4202496 321 0 0 0 59 0 0 0 22 0 1 0 282121642 902037504 262 33554432000 4194304 4228340 140734879726736 18446744073709551615 4217024 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/9728/statm: 220224 262 116 9 0 217381 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 880896

Child status: 10
Real time (s): 0.700524
CPU time (s): 0.699892
CPU user time (s): 0.698893
CPU system time (s): 0.000999
CPU usage (%): 99.9098
Max. virtual memory (cumulated for all children) (KiB): 880896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.698893
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 325
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= 3
involuntary context switches= 2

runsolver used 0.004999 second user time and 0.001999 second system time

The end

Launcher Data 

Begin job on node102 at 2011-04-02 02:46:33
IDJOB=3169945
IDBENCH=82963
IDSOLVER=1579
FILE ID=node102/3169945-1301705193
RUNJOBID= node102-1301705193-9702
PBS_JOBID= 12840749
Free space on /tmp= 71632 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S222128792-011.SATISFIABLE.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169945-1301705193/watcher-3169945-1301705193 -o /tmp/evaluation-result-3169945-1301705193/solver-3169945-1301705193 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3169945-1301705193.cnf 177318345

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

MD5SUM BENCH= afacdefc4a366ba0b827e7e74ce8af4c
RANDOM SEED=177318345

node102.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		: 2666.828
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	: 5333.65
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		: 2666.828
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	: 5226.15
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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		: 2666.828
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:      22217884 kB
Buffers:        330168 kB
Cached:       10081244 kB
SwapCached:          0 kB
Active:        7439356 kB
Inactive:      3034860 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22217884 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           23344 kB
Writeback:           0 kB
AnonPages:       62624 kB
Mapped:          14616 kB
Slab:           194528 kB
PageTables:       4736 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   190360 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= 71600 MiB
End job on node102 at 2011-04-02 02:46:34