Trace number 298653

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 24.3873 24.3959

General information on the benchmark

Namerandom/OnTreshold/3SAT/v360/
unif-k3-r4.26-v360-c1533-S1422217194-16.SAT.shuffled.cnf
MD5SUM05d311b5d324ec36db80bce02b8227da
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1533
Sum of the clauses size4599
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31533
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/298653-1171859015/kcnfs-2004   V. 03/02/12
0.00/0.01	c Input file : '/tmp/evaluation/298653-1171859015/instance-298653-1171859015.cnf' (adding resolvants)
24.36/24.39	c [360 variables, 1533 clauses, ratio 4.26, mean occ 6, 3-SAT]
24.36/24.39	s SATISFIABLE
24.36/24.39	v  -136   353  -310    71   172
24.36/24.39	v   116   179   156  -140   -78
24.36/24.39	v   186   319   -27   137  -126
24.36/24.39	v    40  -119   276  -322   -43
24.36/24.39	v     3   323   161  -227   131
24.36/24.39	v    24   -52   350   209   321
24.36/24.39	v   210   295  -360   304    25
24.36/24.39	v   -46   -99  -195  -204  -171
24.36/24.39	v    20   341    88   205    10
24.36/24.39	v   109    31   -83  -344    39
24.36/24.39	v  -197    32   -81  -328  -129
24.36/24.39	v   218   -45  -162   359  -309
24.36/24.39	v  -110   121    47   293    22
24.36/24.39	v   105   139   329  -150    -9
24.36/24.39	v   -53   357   114  -213   -21
24.36/24.39	v  -261    12   -61   242  -351
24.36/24.39	v   176  -348   318  -352   167
24.36/24.39	v    -4  -185    23   -93   229
24.36/24.39	v   243   153    62   133  -257
24.36/24.39	v   268  -234     5   314    86
24.36/24.39	v   191   132   -87   -91   -15
24.36/24.39	v  -147   239    42  -100  -326
24.36/24.39	v   -19  -354  -125  -223  -275
24.36/24.39	v  -340   -94   -77  -183   284
24.36/24.39	v   330  -113  -335   146   -58
24.36/24.39	v   217  -104   118  -198    35
24.36/24.39	v   324   128    68   102  -228
24.36/24.39	v  -244  -266     8    -1    55
24.36/24.39	v  -333  -311   174  -169   159
24.36/24.39	v  -175  -158  -178   111  -347
24.36/24.39	v   264  -249   123  -356   247
24.36/24.39	v   336  -345   -85   258  -106
24.36/24.39	v    96  -226  -346    16   112
24.36/24.39	v   283   134  -253  -271   180
24.36/24.39	v  -149    41    29   188   170
24.36/24.39	v    97   -80  -288    11   -98
24.36/24.39	v   -67  -245  -141  -181  -248
24.36/24.39	v   189  -201  -232    57    84
24.36/24.39	v  -160   331   148   -82  -184
24.36/24.39	v  -315   103   334   152    54
24.36/24.39	v    -7   300   237   358   143
24.36/24.39	v   222   138   -30  -231  -269
24.36/24.39	v  -337  -349   274  -339  -225
24.36/24.39	v    74    26   -65   122   207
24.36/24.39	v   301    72  -303   130     6
24.36/24.39	v   291   233    76   206  -273
24.36/24.39	v   256   -14  -325  -193   -17
24.36/24.39	v   155  -107   342  -298   163
24.36/24.39	v  -252   200   260  -177  -250
24.36/24.39	v   305   290   355  -263   287
24.36/24.39	v   190  -294  -251    66   285
24.36/24.39	v   279    79   265  -307   221
24.36/24.39	v   327  -216   164   -48   241
24.36/24.39	v  -246  -108   240  -194    70
24.36/24.39	v   -50   289   313   203    44
24.36/24.39	v  -238  -208  -278   297    13
24.36/24.39	v   235   282   296   306  -272
24.36/24.39	v   317  -215     2   199    64
24.36/24.39	v   -75  -151   262    56   -18
24.36/24.39	v   259  -145  -168   196   212
24.36/24.39	v  -281    90  -320   -92    89
24.36/24.39	v   144  -255   -63   220  -115
24.36/24.39	v  -332    59    34   -51  -236
24.36/24.39	v   338   120  -127   173  -277
24.36/24.39	v    60    69    73   -95  -101
24.36/24.39	v   117  -124   135   142   154
24.36/24.39	v   165   166   182   187  -202
24.36/24.39	v   211   214   224   230   254
24.36/24.39	v  -267   280   286   292   299
24.36/24.39	v  -302   308   312   316   343
24.36/24.39	v   -28    33    36   -37   -38
24.36/24.39	v    49   219  -270   157  -192
24.36/24.39	v     0
24.36/24.39	c Computation time    : 24.370 seconds
24.36/24.39	c Execution time      : 24.380 seconds
24.36/24.39	c Size of search tree : 49333 nodes
24.36/24.39

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/node43/watcher-298653-1171859015 -o ROOT/results/node43/solver-298653-1171859015 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/298653-1171859015/kcnfs-2004 /tmp/evaluation/298653-1171859015/instance-298653-1171859015.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: 0.99 0.98 0.99 3/64 20028
/proc/meminfo: memFree=530536/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16548 CPUtime=0
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 197 0 0 0 0 0 0 0 18 0 1 0 205857588 16945152 176 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134525255 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4137 176 40 107 0 4026 0

[startup+0.107208 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 20028
/proc/meminfo: memFree=530536/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=0.1
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 293 0 0 0 10 0 0 0 18 0 1 0 205857588 16994304 272 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134528147 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 272 60 107 0 4038 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 16596

[startup+0.515276 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 20028
/proc/meminfo: memFree=530536/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=0.51
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 293 0 0 0 51 0 0 0 22 0 1 0 205857588 16994304 272 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134577957 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 272 60 107 0 4038 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 16596

[startup+1.33841 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20029
/proc/meminfo: memFree=529696/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=1.33
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 293 0 0 0 133 0 0 0 25 0 1 0 205857588 16994304 272 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134530200 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 272 60 107 0 4038 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 16596

[startup+2.97468 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20029
/proc/meminfo: memFree=529568/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=2.97
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 293 0 0 0 297 0 0 0 25 0 1 0 205857588 16994304 272 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134528512 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 272 60 107 0 4038 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 16596

[startup+6.25423 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20029
/proc/meminfo: memFree=529440/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=6.24
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 293 0 0 0 624 0 0 0 25 0 1 0 205857588 16994304 272 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134536851 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 272 60 107 0 4038 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 16596

[startup+12.7073 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20029
/proc/meminfo: memFree=529440/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=12.69
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 293 0 0 0 1269 0 0 0 25 0 1 0 205857588 16994304 272 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134528957 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 272 60 107 0 4038 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 16596

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

[startup+13.1154 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20029
/proc/meminfo: memFree=529440/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=13.1
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 293 0 0 0 1310 0 0 0 25 0 1 0 205857588 16994304 272 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134530640 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 272 60 107 0 4038 0
Current children cumulated CPU time (s) 13.1
Current children cumulated vsize (KiB) 16596

[startup+19.6705 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20029
/proc/meminfo: memFree=529440/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=19.66
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 293 0 0 0 1966 0 0 0 25 0 1 0 205857588 16994304 272 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134528718 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 272 60 107 0 4038 0
Current children cumulated CPU time (s) 19.66
Current children cumulated vsize (KiB) 16596

[startup+22.948 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20029
/proc/meminfo: memFree=529440/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=22.93
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 294 0 0 0 2293 0 0 0 25 0 1 0 205857588 16994304 273 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134528215 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 273 60 107 0 4038 0
Current children cumulated CPU time (s) 22.93
Current children cumulated vsize (KiB) 16596

[startup+23.7681 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20029
/proc/meminfo: memFree=529440/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=23.75
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 294 0 0 0 2375 0 0 0 25 0 1 0 205857588 16994304 273 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134530239 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 273 60 107 0 4038 0
Current children cumulated CPU time (s) 23.75
Current children cumulated vsize (KiB) 16596

[startup+24.1762 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20029
/proc/meminfo: memFree=529440/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=24.16
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 294 0 0 0 2416 0 0 0 25 0 1 0 205857588 16994304 273 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134531127 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 273 60 107 0 4038 0
Current children cumulated CPU time (s) 24.16
Current children cumulated vsize (KiB) 16596

[startup+24.3802 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 20029
/proc/meminfo: memFree=529440/2055920 swapFree=4183376/4192956
[pid=20028] ppid=20026 vsize=16596 CPUtime=24.36
/proc/20028/stat : 20028 (kcnfs-2004) R 20026 20028 18556 0 -1 0 294 0 0 0 2436 0 0 0 25 0 1 0 205857588 16994304 273 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134528162 0 0 4096 0 0 0 0 17 1 0 0
/proc/20028/statm: 4149 273 60 107 0 4038 0
Current children cumulated CPU time (s) 24.36
Current children cumulated vsize (KiB) 16596

Child status: 10
Real time (s): 24.3959
CPU time (s): 24.3873
CPU user time (s): 24.3823
CPU system time (s): 0.004999
CPU usage (%): 99.9647
Max. virtual memory (cumulated for all children) (KiB): 16596

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.3823
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 296
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= 36

runsolver used 0.014997 second user time and 0.057991 second system time

The end

Launcher Data (download as text)

Begin job on node43 on Mon Feb 19 04:23:36 UTC 2007

IDJOB= 298653
IDBENCH= 19991
IDSOLVER= 114
FILE ID= node43/298653-1171859015

PBS_JOBID= 3839736

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v360/unif-k3-r4.26-v360-c1533-S1422217194-16.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298653-1171859015/kcnfs-2004 /tmp/evaluation/298653-1171859015/instance-298653-1171859015.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-298653-1171859015 -o ROOT/results/node43/solver-298653-1171859015 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/298653-1171859015/kcnfs-2004 /tmp/evaluation/298653-1171859015/instance-298653-1171859015.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  05d311b5d324ec36db80bce02b8227da

RANDOM SEED= 124011538

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node43.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		: 3000.281
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		: 3000.281
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:        531072 kB
Buffers:         54008 kB
Cached:        1344140 kB
SwapCached:       4080 kB
Active:         873172 kB
Inactive:       535160 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        531072 kB
SwapTotal:     4192956 kB
SwapFree:      4183376 kB
Dirty:            3300 kB
Writeback:           0 kB
Mapped:          15460 kB
Slab:           102604 kB
Committed_AS:   557972 kB
PageTables:       1392 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 node43 on Mon Feb 19 04:24:00 UTC 2007