Trace number 298038

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, and are wall clock time (not CPU 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
KCNFS 2004SAT 3.56946 3.5719

General information on the benchmark

Namerandom/OnTreshold/3SAT/v450/
unif-k3-r4.25-v450-c1912-S1279599478-02.SAT.shuffled.cnf
MD5SUMb403a40368f0561878d5cbdd78a87179
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.008997
Satisfiable
(Un)Satisfiability was proved
Number of variables450
Number of clauses1912
Sum of the clauses size5736
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31912
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	
0.00/0.01	c Computed by /tmp/evaluation/298038-1171849177/kcnfs-2004   V. 03/02/12
0.00/0.01	c Input file : '/tmp/evaluation/298038-1171849177/instance-298038-1171849177.cnf' (adding resolvants)
3.48/3.56	c [450 variables, 1912 clauses, ratio 4.25, mean occ 6, 3-SAT]
3.48/3.56	s SATISFIABLE
3.48/3.57	v   -93   379   365  -430   -11
3.48/3.57	v   332    68  -189   177  -125
3.48/3.57	v  -352  -358   186   435   121
3.48/3.57	v  -399   278   291   174  -374
3.48/3.57	v   236  -124   -95   -79   345
3.48/3.57	v  -401  -239    18   -56   243
3.48/3.57	v   -74  -203  -443   -57   292
3.48/3.57	v     2    42   398    58    76
3.48/3.57	v   -10    38    53   260  -416
3.48/3.57	v    24   -55  -384  -105    -7
3.48/3.57	v  -389  -307  -425  -405   224
3.48/3.57	v   270  -409   -27  -253   198
3.48/3.57	v  -283   445  -190  -118   252
3.48/3.57	v   209  -387    50  -152  -336
3.48/3.57	v    44  -205  -376   227     4
3.48/3.57	v  -404   360  -367    47  -423
3.48/3.57	v  -136  -305   281   265  -439
3.48/3.57	v   421   341   107  -112   -83
3.48/3.57	v  -378   223   210   267   440
3.48/3.57	v  -197   411   269   154   -73
3.48/3.57	v   133   385    37   -23  -373
3.48/3.57	v  -101  -429    12   366    31
3.48/3.57	v   -60   171   -97    62  -129
3.48/3.57	v    77  -251    98  -349  -222
3.48/3.57	v   184   446    96   237  -304
3.48/3.57	v  -314   166   340   321  -412
3.48/3.57	v   242  -280   313   -39  -348
3.48/3.57	v    -3   355    54    26    46
3.48/3.57	v  -212  -207   392  -256   233
3.48/3.57	v  -272    15   380   254   444
3.48/3.57	v   315  -318  -368  -139   309
3.48/3.57	v     8    16   219  -201   337
3.48/3.57	v  -295   277   137   102  -119
3.48/3.57	v   -21   406   -71   244  -113
3.48/3.57	v  -262  -351  -437  -117   390
3.48/3.57	v  -191  -364  -273   138   144
3.48/3.57	v   230   383   426  -433   327
3.48/3.57	v  -143  -427   434   375  -290
3.48/3.57	v   206  -111  -354   163    66
3.48/3.57	v   310  -323    51   250   116
3.48/3.57	v   382  -300  -447  -417  -214
3.48/3.57	v   274  -436   146  -400   448
3.48/3.57	v  -188   261   185   181  -326
3.48/3.57	v   221  -132   311  -350   356
3.48/3.57	v   200   391   120   299    48
3.48/3.57	v  -320  -155   115  -238    86
3.48/3.57	v   344   420    -5  -408  -395
3.48/3.57	v   255   -85  -346  -173   122
3.48/3.57	v  -353  -359   150   343  -302
3.48/3.57	v    87  -234  -266   -35  -220
3.48/3.57	v   161   -49   147   -34  -333
3.48/3.57	v  -284  -407   286    22   441
3.48/3.57	v  -127    17    14   149   419
3.48/3.57	v  -165  -357  -431  -153  -148
3.48/3.57	v  -130   259   403  -211  -396
3.48/3.57	v  -187  -347  -363    90   413
3.48/3.57	v  -247  -194   303   449    -1
3.48/3.57	v  -329   -30   141  -246  -229
3.48/3.57	v  -235  -104  -394    64   263
3.48/3.57	v   -33  -372  -410     9  -293
3.48/3.57	v    82    20   275   335   442
3.48/3.57	v   317   232  -249    99  -312
3.48/3.57	v   245  -126   -92  -110   -40
3.48/3.57	v   -29    89   183   172   -84
3.48/3.57	v   342  -271  -192   196   -28
3.48/3.57	v    36   -69   257   330  -287
3.48/3.57	v  -106   377  -324   167   208
3.48/3.57	v   199    67  -170   296  -135
3.48/3.57	v   178   -75  -114   151   156
3.48/3.57	v  -108   422  -204   -13  -225
3.48/3.57	v   289  -415   248  -218   -43
3.48/3.57	v  -298   388    19    65  -306
3.48/3.57	v  -397  -301   -45  -100   -59
3.48/3.57	v    41  -361  -450   -81   195
3.48/3.57	v   213   175  -294  -182  -103
3.48/3.57	v   216   402  -297   -61   -52
3.48/3.57	v  -145   217   418   176  -370
3.48/3.57	v   168   180   264  -157   432
3.48/3.57	v   -63    88  -241    94   322
3.48/3.57	v   202  -142   -80   109   131
3.48/3.57	v   279   362  -339   226   438
3.48/3.57	v    -6   393  -424  -428   258
3.48/3.57	v    70   -25    32   -72   -78
3.48/3.57	v    91   134   158   159   160
3.48/3.57	v   162   164  -169   179  -193
3.48/3.57	v   228   240  -268   276   285
3.48/3.57	v   288   316   325   331   338
3.48/3.57	v   369  -381   386   414   215
3.48/3.57	v  -123   128   231  -282   328
3.48/3.57	v   334  -140   371  -308     0
3.48/3.57	c Computation time    : 3.550 seconds
3.48/3.57	c Execution time      : 3.560 seconds
3.48/3.57	c Size of search tree : 6041 nodes
3.48/3.57

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node67/watcher-298038-1171849177 -o ROOT/results/node67/solver-298038-1171849177 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/298038-1171849177/kcnfs-2004 /tmp/evaluation/298038-1171849177/instance-298038-1171849177.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Using a pseudo terminal to collect output from the solver
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 32393
/proc/meminfo: memFree=573128/2055920 swapFree=4183772/4192956
[pid=32393] ppid=32391 vsize=16492 CPUtime=0
/proc/32393/stat : 32393 (kcnfs-2004) R 32391 32393 31389 0 -1 0 217 0 0 0 0 0 0 0 18 0 1 0 204875326 16887808 197 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134614467 0 0 4096 0 0 0 0 17 1 0 0
/proc/32393/statm: 4128 202 38 107 0 4017 0

[startup+0.10713 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 32393
/proc/meminfo: memFree=573128/2055920 swapFree=4183772/4192956
[pid=32393] ppid=32391 vsize=16728 CPUtime=0.1
/proc/32393/stat : 32393 (kcnfs-2004) R 32391 32393 31389 0 -1 0 337 0 0 0 10 0 0 0 18 0 1 0 204875326 17129472 316 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134532469 0 0 4096 0 0 0 0 17 1 0 0
/proc/32393/statm: 4182 316 61 107 0 4071 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 16728

[startup+0.518172 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 32393
/proc/meminfo: memFree=573128/2055920 swapFree=4183772/4192956
[pid=32393] ppid=32391 vsize=16728 CPUtime=0.51
/proc/32393/stat : 32393 (kcnfs-2004) R 32391 32393 31389 0 -1 0 338 0 0 0 51 0 0 0 21 0 1 0 204875326 17129472 317 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134532453 0 0 4096 0 0 0 0 17 1 0 0
/proc/32393/statm: 4182 317 61 107 0 4071 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 16728

[startup+1.33826 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 32394
/proc/meminfo: memFree=572096/2055920 swapFree=4183772/4192956
[pid=32393] ppid=32391 vsize=16732 CPUtime=1.33
/proc/32393/stat : 32393 (kcnfs-2004) R 32391 32393 31389 0 -1 0 339 0 0 0 133 0 0 0 25 0 1 0 204875326 17133568 318 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134577867 0 0 4096 0 0 0 0 17 1 0 0
/proc/32393/statm: 4183 318 61 107 0 4072 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 16732

[startup+2.97443 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 32394
/proc/meminfo: memFree=571968/2055920 swapFree=4183772/4192956
[pid=32393] ppid=32391 vsize=16732 CPUtime=2.96
/proc/32393/stat : 32393 (kcnfs-2004) R 32391 32393 31389 0 -1 0 339 0 0 0 296 0 0 0 25 0 1 0 204875326 17133568 318 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134529176 0 0 4096 0 0 0 0 17 1 0 0
/proc/32393/statm: 4183 318 61 107 0 4072 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 16732

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

[startup+3.28046 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 32394
/proc/meminfo: memFree=571968/2055920 swapFree=4183772/4192956
[pid=32393] ppid=32391 vsize=16732 CPUtime=3.27
/proc/32393/stat : 32393 (kcnfs-2004) R 32391 32393 31389 0 -1 0 339 0 0 0 327 0 0 0 25 0 1 0 204875326 17133568 318 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134528112 0 0 4096 0 0 0 0 17 1 0 0
/proc/32393/statm: 4183 318 61 107 0 4072 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 16732

[startup+3.48848 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 32394
/proc/meminfo: memFree=571968/2055920 swapFree=4183772/4192956
[pid=32393] ppid=32391 vsize=16732 CPUtime=3.48
/proc/32393/stat : 32393 (kcnfs-2004) R 32391 32393 31389 0 -1 0 339 0 0 0 348 0 0 0 25 0 1 0 204875326 17133568 318 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134529856 0 0 4096 0 0 0 0 17 1 0 0
/proc/32393/statm: 4183 318 61 107 0 4072 0
Current children cumulated CPU time (s) 3.48
Current children cumulated vsize (KiB) 16732

Child status: 10
Real time (s): 3.5719
CPU time (s): 3.56946
CPU user time (s): 3.56546
CPU system time (s): 0.003999
CPU usage (%): 99.9315
Max. virtual memory (cumulated for all children) (KiB): 16732

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.56546
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 339
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= 8
involuntary context switches= 8

runsolver used 0.002999 second user time and 0.016997 second system time

The end

Launcher Data (download as text)

Begin job on node67 on Mon Feb 19 01:39:37 UTC 2007

IDJOB= 298038
IDBENCH= 19976
IDSOLVER= 114
FILE ID= node67/298038-1171849177

PBS_JOBID= 3839723

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v450/unif-k3-r4.25-v450-c1912-S1279599478-02.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298038-1171849177/kcnfs-2004 /tmp/evaluation/298038-1171849177/instance-298038-1171849177.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node67/watcher-298038-1171849177 -o ROOT/results/node67/solver-298038-1171849177 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/298038-1171849177/kcnfs-2004 /tmp/evaluation/298038-1171849177/instance-298038-1171849177.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  b403a40368f0561878d5cbdd78a87179

RANDOM SEED= 864459661

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node67.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.236
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.236
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
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 lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        573600 kB
Buffers:         50140 kB
Cached:        1311420 kB
SwapCached:       3608 kB
Active:         741968 kB
Inactive:       629452 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        573600 kB
SwapTotal:     4192956 kB
SwapFree:      4183772 kB
Dirty:            3176 kB
Writeback:           0 kB
Mapped:          15332 kB
Slab:            96884 kB
Committed_AS:   652956 kB
PageTables:       1452 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66561 MiB

End job on node67 on Mon Feb 19 01:39:41 UTC 2007