Trace number 3169954

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 1.35479 1.35624

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v450-c1917-S1617626827-069.SATISFIABLE.cnf
MD5SUM181d327d4cfd49957ee63dfb74a0e12a
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.005998
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 

1.29/1.35	c 0 clauses are redundant and removed
1.29/1.35	c 0 vars are fixed and 0 clauses are removed after unit propagation
1.29/1.35	c 0 vars are fixed and 0 clauses are removed after lookahead
1.29/1.35	c initial seed is 1094699083
1.29/1.35	c try=1 flip j=3496486 walk=3069755 seed 1094699100
1.29/1.35	c A solution is found
1.29/1.35	s SATISFIABLE
1.29/1.35	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 
1.29/1.35	v 0 
1.29/1.35	c Done (mycputime is 1 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-3169954-1301705197/watcher-3169954-1301705197 -o /tmp/evaluation-result-3169954-1301705197/solver-3169954-1301705197 -C 2400 -W 1300 -M 7680 sattime+ HOME/instance-3169954-1301705197.cnf 1094698970 

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: 1.82 2.94 3.55 5/189 9906
/proc/meminfo: memFree=22204244/32951124 swapFree=67111528/67111528
[pid=9906] ppid=9904 vsize=880896 CPUtime=0 cores=4,6
/proc/9906/stat : 9906 (sattime+) R 9904 9906 8728 0 -1 4202496 322 0 0 0 0 0 0 0 25 0 1 0 282122056 902037504 263 33554432000 4194304 4228340 140736240570688 18446744073709551615 4217336 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/9906/statm: 220224 263 116 9 0 217381 0

[startup+0.068458 s]
/proc/loadavg: 1.82 2.94 3.55 5/189 9906
/proc/meminfo: memFree=22204244/32951124 swapFree=67111528/67111528
[pid=9906] ppid=9904 vsize=880896 CPUtime=0.06 cores=4,6
/proc/9906/stat : 9906 (sattime+) R 9904 9906 8728 0 -1 4202496 322 0 0 0 6 0 0 0 25 0 1 0 282122056 902037504 263 33554432000 4194304 4228340 140736240570688 18446744073709551615 4217565 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/9906/statm: 220224 263 116 9 0 217381 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 880896

[startup+0.100451 s]
/proc/loadavg: 1.82 2.94 3.55 5/189 9906
/proc/meminfo: memFree=22204244/32951124 swapFree=67111528/67111528
[pid=9906] ppid=9904 vsize=880896 CPUtime=0.09 cores=4,6
/proc/9906/stat : 9906 (sattime+) R 9904 9906 8728 0 -1 4202496 322 0 0 0 9 0 0 0 25 0 1 0 282122056 902037504 263 33554432000 4194304 4228340 140736240570688 18446744073709551615 212435417627 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/9906/statm: 220224 263 116 9 0 217381 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 880896

[startup+0.300407 s]
/proc/loadavg: 1.82 2.94 3.55 5/189 9906
/proc/meminfo: memFree=22204244/32951124 swapFree=67111528/67111528
[pid=9906] ppid=9904 vsize=880896 CPUtime=0.29 cores=4,6
/proc/9906/stat : 9906 (sattime+) R 9904 9906 8728 0 -1 4202496 322 0 0 0 29 0 0 0 25 0 1 0 282122056 902037504 263 33554432000 4194304 4228340 140736240570688 18446744073709551615 4217007 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/9906/statm: 220224 263 116 9 0 217381 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 880896

[startup+0.700314 s]
/proc/loadavg: 1.82 2.94 3.55 5/189 9906
/proc/meminfo: memFree=22204244/32951124 swapFree=67111528/67111528
[pid=9906] ppid=9904 vsize=880896 CPUtime=0.69 cores=4,6
/proc/9906/stat : 9906 (sattime+) R 9904 9906 8728 0 -1 4202496 322 0 0 0 69 0 0 0 25 0 1 0 282122056 902037504 263 33554432000 4194304 4228340 140736240570688 18446744073709551615 4218804 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/9906/statm: 220224 263 116 9 0 217381 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 880896

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

[startup+1.10625 s]
/proc/loadavg: 1.82 2.94 3.55 5/190 9907
/proc/meminfo: memFree=22202128/32951124 swapFree=67111528/67111528
[pid=9906] ppid=9904 vsize=880896 CPUtime=1.1 cores=4,6
/proc/9906/stat : 9906 (sattime+) R 9904 9906 8728 0 -1 4202496 322 0 0 0 110 0 0 0 25 0 1 0 282122056 902037504 263 33554432000 4194304 4228340 140736240570688 18446744073709551615 4217736 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/9906/statm: 220224 263 116 9 0 217381 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 880896

[startup+1.30022 s]
/proc/loadavg: 1.82 2.94 3.55 5/190 9907
/proc/meminfo: memFree=22202128/32951124 swapFree=67111528/67111528
[pid=9906] ppid=9904 vsize=880896 CPUtime=1.29 cores=4,6
/proc/9906/stat : 9906 (sattime+) R 9904 9906 8728 0 -1 4202496 322 0 0 0 129 0 0 0 25 0 1 0 282122056 902037504 263 33554432000 4194304 4228340 140736240570688 18446744073709551615 4217336 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/9906/statm: 220224 263 116 9 0 217381 0
Current children cumulated CPU time (s) 1.29
Current children cumulated vsize (KiB) 880896

Child status: 10
Real time (s): 1.35624
CPU time (s): 1.35479
CPU user time (s): 1.35379
CPU system time (s): 0.000999
CPU usage (%): 99.8931
Max. virtual memory (cumulated for all children) (KiB): 880896

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.35379
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= 326
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 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node102 at 2011-04-02 02:46:37
IDJOB=3169954
IDBENCH=82972
IDSOLVER=1579
FILE ID=node102/3169954-1301705197
RUNJOBID= node102-1301705193-9703
PBS_JOBID= 12840749
Free space on /tmp= 71608 MiB

SOLVER NAME= sattime+ 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v450-c1917-S1617626827-069.SATISFIABLE.cnf
COMMAND LINE= sattime+ BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3169954-1301705197/watcher-3169954-1301705197 -o /tmp/evaluation-result-3169954-1301705197/solver-3169954-1301705197 -C 2400 -W 1300 -M 7680  sattime+ HOME/instance-3169954-1301705197.cnf 1094698970

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

MD5SUM BENCH= 181d327d4cfd49957ee63dfb74a0e12a
RANDOM SEED=1094698970

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:      22204276 kB
Buffers:        330308 kB
Cached:       10089628 kB
SwapCached:          0 kB
Active:        7458384 kB
Inactive:      3029192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      22204276 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:           31804 kB
Writeback:           0 kB
AnonPages:       67532 kB
Mapped:          15340 kB
Slab:           196284 kB
PageTables:       5828 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  2885620 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 02:46:38