Trace number 3426963

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 0.296954 0.299535

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S386464511-018.SATISFIABLE.cnf
MD5SUM988859f9794bcb4984b591f0d8d2fa91
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.028995
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 

0.19/0.29	c 0 clauses are redundant and removed
0.19/0.29	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.19/0.29	c 0 vars are fixed and 0 clauses are removed after lookahead
0.19/0.29	c initial seed is 1277398083
0.19/0.29	c try=1 flip j=606263 walk=517049 seed 1277398100
0.19/0.29	c A solution is found
0.19/0.29	s SATISFIABLE
0.19/0.29	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 
0.19/0.29	v 0 
0.19/0.29	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-3426963-1306781789/watcher-3426963-1306781789 -o /tmp/evaluation-result-3426963-1306781789/solver-3426963-1306781789 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426963-1306781789.cnf 1277394626 

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: 2.00 2.01 2.00 4/504 9860
/proc/meminfo: memFree=5554560/32951124 swapFree=51851948/67111528
[pid=9859] ppid=9856 vsize=1185716 CPUtime=0 cores=0,2,4,6
/proc/9859/stat : 9859 (sattime2011) R 9856 9859 8920 0 -1 4202496 352 0 0 0 0 0 0 0 20 0 1 0 789781551 1214173184 295 33554432000 4194304 4230460 140734265243424 18446744073709551615 4199706 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/9859/statm: 296429 295 117 9 0 293586 0

[startup+0.0809909 s]
/proc/loadavg: 2.00 2.01 2.00 4/504 9860
/proc/meminfo: memFree=5554560/32951124 swapFree=51851948/67111528
[pid=9859] ppid=9856 vsize=1185716 CPUtime=0.07 cores=0,2,4,6
/proc/9859/stat : 9859 (sattime2011) R 9856 9859 8920 0 -1 4202496 352 0 0 0 7 0 0 0 20 0 1 0 789781551 1214173184 295 33554432000 4194304 4230460 140734265243424 18446744073709551615 4221664 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/9859/statm: 296429 295 117 9 0 293586 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1185716

[startup+0.100968 s]
/proc/loadavg: 2.00 2.01 2.00 4/504 9860
/proc/meminfo: memFree=5554560/32951124 swapFree=51851948/67111528
[pid=9859] ppid=9856 vsize=1185716 CPUtime=0.09 cores=0,2,4,6
/proc/9859/stat : 9859 (sattime2011) R 9856 9859 8920 0 -1 4202496 352 0 0 0 9 0 0 0 20 0 1 0 789781551 1214173184 295 33554432000 4194304 4230460 140734265243424 18446744073709551615 4200528 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/9859/statm: 296429 295 117 9 0 293586 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1185716

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

[startup+0.200944 s]
/proc/loadavg: 2.00 2.01 2.00 4/504 9860
/proc/meminfo: memFree=5554560/32951124 swapFree=51851948/67111528
[pid=9859] ppid=9856 vsize=1185716 CPUtime=0.19 cores=0,2,4,6
/proc/9859/stat : 9859 (sattime2011) R 9856 9859 8920 0 -1 4202496 352 0 0 0 19 0 0 0 20 0 1 0 789781551 1214173184 295 33554432000 4194304 4230460 140734265243424 18446744073709551615 4221614 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/9859/statm: 296429 295 117 9 0 293586 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 1185716

Child status: 10
Real time (s): 0.299535
CPU time (s): 0.296954
CPU user time (s): 0.295955
CPU system time (s): 0.000999
CPU usage (%): 99.1384
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.295955
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= 356
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 0.015997 second system time

The end

Launcher Data 

Begin job on node103 at 2011-05-30 20:56:29
IDJOB=3426963
IDBENCH=82935
IDSOLVER=1924
FILE ID=node103/3426963-1306781789
RUNJOBID= node103-1306781789-9841
PBS_JOBID= 13475021
Free space on /tmp= 57964 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S386464511-018.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426963-1306781789/watcher-3426963-1306781789 -o /tmp/evaluation-result-3426963-1306781789/solver-3426963-1306781789 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426963-1306781789.cnf 1277394626

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

MD5SUM BENCH= 988859f9794bcb4984b591f0d8d2fa91
RANDOM SEED=1277394626

node103.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		: 2666.858
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	: 5333.71
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		: 2666.858
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		: 2666.858
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		: 2666.858
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		: 2666.858
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		: 2666.858
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		: 2666.858
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	: 5332.83
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		: 2666.858
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:       5554988 kB
Buffers:        400948 kB
Cached:       24422032 kB
SwapCached:     191244 kB
Active:       18439372 kB
Inactive:      8219972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       5554988 kB
SwapTotal:    67111528 kB
SwapFree:     51851948 kB
Dirty:           15560 kB
Writeback:           0 kB
AnonPages:     1655916 kB
Mapped:          22208 kB
Slab:           593572 kB
PageTables:      73240 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 162034556 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= 57956 MiB
End job on node103 at 2011-05-30 20:56:30