Trace number 3153770

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 0.020995 0.020823

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v400-c1704-S1050579435-065.SATISFIABLE.cnf
MD5SUMa9aff6c7ce1658eb3edc84aa7f38478c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.006998
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1704
Sum of the clauses size5112
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31704
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.01/0.02	c 0 clauses are redundant and removed
0.01/0.02	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.01/0.02	c 0 vars are fixed and 0 clauses are removed after lookahead
0.01/0.02	c initial seed is 131843088
0.01/0.02	c try=1 flip j=34687 walk=29575 seed 131843105
0.01/0.02	c A solution is found
0.01/0.02	s SATISFIABLE
0.01/0.02	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 
0.01/0.02	v 0 
0.01/0.02	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-3153770-1301682449/watcher-3153770-1301682449 -o /tmp/evaluation-result-3153770-1301682449/solver-3153770-1301682449 -C 2400 -W 1300 -M 7680 sattime2011 HOME/instance-3153770-1301682449.cnf 131839631 

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: 3.93 4.00 3.93 4/187 5780
/proc/meminfo: memFree=21593688/32951132 swapFree=67111528/67111528
[pid=5780] ppid=5778 vsize=1185716 CPUtime=0 cores=0,2
/proc/5780/stat : 5780 (sattime2011) R 5778 5780 4909 0 -1 4202496 343 0 0 0 0 0 0 0 25 0 1 0 279844526 1214173184 283 33554432000 4194304 4230460 140733440723488 18446744073709551615 4221692 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/5780/statm: 296429 283 117 9 0 293586 0

[startup+0.0151741 s]
/proc/loadavg: 3.93 4.00 3.93 4/187 5780
/proc/meminfo: memFree=21593688/32951132 swapFree=67111528/67111528
[pid=5780] ppid=5778 vsize=1185716 CPUtime=0.01 cores=0,2
/proc/5780/stat : 5780 (sattime2011) R 5778 5780 4909 0 -1 4202496 343 0 0 0 1 0 0 0 25 0 1 0 279844526 1214173184 283 33554432000 4194304 4230460 140733440723488 18446744073709551615 4221728 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/5780/statm: 296429 283 117 9 0 293586 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1185716

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

[startup+0.0151741 s]
/proc/loadavg: 3.93 4.00 3.93 4/187 5780
/proc/meminfo: memFree=21593688/32951132 swapFree=67111528/67111528
[pid=5780] ppid=5778 vsize=1185716 CPUtime=0.01 cores=0,2
/proc/5780/stat : 5780 (sattime2011) R 5778 5780 4909 0 -1 4202496 343 0 0 0 1 0 0 0 25 0 1 0 279844526 1214173184 283 33554432000 4194304 4230460 140733440723488 18446744073709551615 4221728 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/5780/statm: 296429 283 117 9 0 293586 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1185716

Child status: 10
Real time (s): 0.020823
CPU time (s): 0.020995
CPU user time (s): 0.019996
CPU system time (s): 0.000999
CPU usage (%): 100.826
Max. virtual memory (cumulated for all children) (KiB): 1185716

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.019996
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= 347
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= 0

runsolver used 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node131 at 2011-04-01 20:27:29
IDJOB=3153770
IDBENCH=82877
IDSOLVER=1563
FILE ID=node131/3153770-1301682449
RUNJOBID= node131-1301678137-4927
PBS_JOBID= 12840566
Free space on /tmp= 71516 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v400-c1704-S1050579435-065.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3153770-1301682449/watcher-3153770-1301682449 -o /tmp/evaluation-result-3153770-1301682449/solver-3153770-1301682449 -C 2400 -W 1300 -M 7680  sattime2011 HOME/instance-3153770-1301682449.cnf 131839631

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

MD5SUM BENCH= a9aff6c7ce1658eb3edc84aa7f38478c
RANDOM SEED=131839631

node131.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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.83
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		: 2666.830
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		: 2666.830
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	: 5332.77
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951132 kB
MemFree:      21593844 kB
Buffers:        340664 kB
Cached:       10684768 kB
SwapCached:          0 kB
Active:        6848124 kB
Inactive:      4247424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951132 kB
LowFree:      21593844 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            7788 kB
Writeback:           0 kB
AnonPages:       69636 kB
Mapped:          15544 kB
Slab:           197580 kB
PageTables:       5732 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587092 kB
Committed_AS:  3796860 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296000 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 71508 MiB
End job on node131 at 2011-04-01 20:27:29