Trace number 299760

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 4.18736 4.19012

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S1031412672-05.SAT.shuffled.cnf
MD5SUM2e3fcbe567f2903b00fec23f53309ef8
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.014997
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 (download as text)

0.00/0.00	
0.00/0.01	c Computed by /tmp/evaluation/299760-1171877039/kcnfs-2004   V. 03/02/12
0.00/0.01	c Input file : '/tmp/evaluation/299760-1171877039/instance-299760-1171877039.cnf' (adding resolvants)
4.10/4.18	c [400 variables, 1704 clauses, ratio 4.26, mean occ 6, 3-SAT]
4.10/4.18	s SATISFIABLE
4.10/4.18	v  -236   157   288   -48   303
4.10/4.18	v   321  -164   195   -28    86
4.10/4.18	v    60  -241   317  -289   248
4.10/4.18	v  -161   229   220   218   208
4.10/4.18	v   370  -102  -266    40    87
4.10/4.18	v   384   154   143   260   295
4.10/4.18	v   276  -283  -264    23    35
4.10/4.18	v  -148  -282   -97  -153   323
4.10/4.18	v  -181  -201   391   162   207
4.10/4.18	v   -83   385   240   123    80
4.10/4.18	v   341  -231    22  -390  -175
4.10/4.18	v  -357  -217     1  -128   -56
4.10/4.18	v  -177   -77  -380   179  -112
4.10/4.18	v   193   204  -226   291   165
4.10/4.18	v   -46  -400  -149  -239  -122
4.10/4.18	v   237   132  -362  -318    34
4.10/4.18	v   158   104  -194  -359  -223
4.10/4.18	v     3  -300   265   389  -373
4.10/4.18	v   196  -242    18  -141     8
4.10/4.18	v    14   144  -378   361   139
4.10/4.18	v   146  -377   -21   -31  -186
4.10/4.18	v   -85  -280  -138  -306   206
4.10/4.18	v  -351  -365   -70  -125  -121
4.10/4.18	v  -308   -74  -388   395  -101
4.10/4.18	v  -311   -59    93   328  -274
4.10/4.18	v  -169   394  -350  -371   342
4.10/4.18	v  -198  -315  -185   109   202
4.10/4.18	v   270   -55  -299  -367  -126
4.10/4.18	v  -324  -230   301   -91  -313
4.10/4.18	v   187  -356   293  -172   -33
4.10/4.18	v  -257  -168    29  -108  -364
4.10/4.18	v   -61  -211   -79   173   383
4.10/4.18	v   191   281   199  -366   352
4.10/4.18	v   379     7  -176  -171  -294
4.10/4.18	v   262  -376    44  -245   348
4.10/4.18	v  -382   297  -134    95   103
4.10/4.18	v  -314   -90  -131    84   232
4.10/4.18	v    50   163  -286  -360   -65
4.10/4.18	v   249    92   339   336   110
4.10/4.18	v    15   354  -310   197  -353
4.10/4.18	v   -39   227   130  -203    -5
4.10/4.18	v  -254    88    27  -275   278
4.10/4.18	v  -340  -387    57   127   140
4.10/4.18	v    81  -106    30   316   -45
4.10/4.18	v  -235   142   -99  -167   298
4.10/4.18	v  -335   150   374   244   344
4.10/4.18	v   261  -309  -397   381   358
4.10/4.18	v    62   212    41    37  -272
4.10/4.18	v  -252  -399  -219   330   188
4.10/4.18	v  -205  -118   115   174   184
4.10/4.18	v   -66  -398  -129    52   346
4.10/4.18	v  -105   -53   243   296   166
4.10/4.18	v  -349   100     2   305  -307
4.10/4.18	v  -224    94    20   107   209
4.10/4.18	v   200  -393    -9  -222   -67
4.10/4.18	v    64    38  -170  -290  -216
4.10/4.18	v   116   238  -136  -124  -246
4.10/4.18	v   263    75   228   -82     4
4.10/4.18	v   302   182   325   113   256
4.10/4.18	v   -63  -369   320  -368   -24
4.10/4.18	v   -32    51  -273   192  -137
4.10/4.18	v   233   251  -213   -11  -322
4.10/4.18	v   312   145   345   178  -271
4.10/4.18	v   114   386  -221  -156  -347
4.10/4.18	v    43  -111    17  -119   135
4.10/4.18	v    36   234    25   215   269
4.10/4.18	v   331  -392   120   117  -250
4.10/4.18	v  -337   327   285  -326    72
4.10/4.18	v  -180   -96   -10    42    69
4.10/4.18	v   -78  -190   267  -284   363
4.10/4.18	v    49  -253   -19   210    26
4.10/4.18	v    47   -54    68   -71    73
4.10/4.18	v   -76    89    98   133   147
4.10/4.18	v   151  -152   155   159   160
4.10/4.18	v   183  -189  -214   225  -247
4.10/4.18	v   255   258  -259  -268   277
4.10/4.18	v   279   287   292   304  -319
4.10/4.18	v  -329   332  -333   334   338
4.10/4.18	v   343   355   372   375   396
4.10/4.18	v    -6     0
4.10/4.18	c Computation time    : 4.170 seconds
4.10/4.18	c Execution time      : 4.180 seconds
4.10/4.18	c Size of search tree : 8130 nodes
4.10/4.18

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/node76/watcher-299760-1171877039 -o ROOT/results/node76/solver-299760-1171877039 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/299760-1171877039/kcnfs-2004 /tmp/evaluation/299760-1171877039/instance-299760-1171877039.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: 1.00 1.00 1.00 3/69 18926
/proc/meminfo: memFree=1129928/2055888 swapFree=4087076/4096564
[pid=18926] ppid=18924 vsize=16608 CPUtime=0
/proc/18926/stat : 18926 (kcnfs-2004) R 18924 18926 17638 0 -1 0 211 0 0 0 0 0 0 0 20 0 1 0 207662217 17006592 192 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134522863 0 0 4096 0 0 0 0 17 1 0 0
/proc/18926/statm: 4152 192 40 107 0 4041 0

[startup+0.10754 s]
/proc/loadavg: 1.00 1.00 1.00 3/69 18926
/proc/meminfo: memFree=1129928/2055888 swapFree=4087076/4096564
[pid=18926] ppid=18924 vsize=16664 CPUtime=0.1
/proc/18926/stat : 18926 (kcnfs-2004) R 18924 18926 17638 0 -1 0 314 0 0 0 10 0 0 0 21 0 1 0 207662217 17063936 295 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134528710 0 0 4096 0 0 0 0 17 1 0 0
/proc/18926/statm: 4166 295 61 107 0 4055 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 16664

[startup+0.516587 s]
/proc/loadavg: 1.00 1.00 1.00 3/69 18926
/proc/meminfo: memFree=1129928/2055888 swapFree=4087076/4096564
[pid=18926] ppid=18924 vsize=16664 CPUtime=0.51
/proc/18926/stat : 18926 (kcnfs-2004) R 18924 18926 17638 0 -1 0 314 0 0 0 51 0 0 0 25 0 1 0 207662217 17063936 295 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134563814 0 0 4096 0 0 0 0 17 1 0 0
/proc/18926/statm: 4166 295 61 107 0 4055 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 16664

[startup+1.34268 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 18927
/proc/meminfo: memFree=1128960/2055888 swapFree=4087076/4096564
[pid=18926] ppid=18924 vsize=16664 CPUtime=1.33
/proc/18926/stat : 18926 (kcnfs-2004) R 18924 18926 17638 0 -1 0 314 0 0 0 133 0 0 0 25 0 1 0 207662217 17063936 295 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134529675 0 0 4096 0 0 0 0 17 1 0 0
/proc/18926/statm: 4166 295 61 107 0 4055 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 16664

[startup+2.97887 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 18927
/proc/meminfo: memFree=1128832/2055888 swapFree=4087076/4096564
[pid=18926] ppid=18924 vsize=16664 CPUtime=2.97
/proc/18926/stat : 18926 (kcnfs-2004) R 18924 18926 17638 0 -1 0 314 0 0 0 297 0 0 0 25 0 1 0 207662217 17063936 295 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134577912 0 0 4096 0 0 0 0 17 1 0 0
/proc/18926/statm: 4166 295 61 107 0 4055 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 16664

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

[startup+3.28491 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 18927
/proc/meminfo: memFree=1128832/2055888 swapFree=4087076/4096564
[pid=18926] ppid=18924 vsize=16664 CPUtime=3.28
/proc/18926/stat : 18926 (kcnfs-2004) R 18924 18926 17638 0 -1 0 314 0 0 0 328 0 0 0 25 0 1 0 207662217 17063936 295 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134530260 0 0 4096 0 0 0 0 17 1 0 0
/proc/18926/statm: 4166 295 61 107 0 4055 0
Current children cumulated CPU time (s) 3.28
Current children cumulated vsize (KiB) 16664

[startup+3.69695 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 18927
/proc/meminfo: memFree=1128832/2055888 swapFree=4087076/4096564
[pid=18926] ppid=18924 vsize=16664 CPUtime=3.69
/proc/18926/stat : 18926 (kcnfs-2004) R 18924 18926 17638 0 -1 0 314 0 0 0 369 0 0 0 25 0 1 0 207662217 17063936 295 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134529303 0 0 4096 0 0 0 0 17 1 0 0
/proc/18926/statm: 4166 295 61 107 0 4055 0
Current children cumulated CPU time (s) 3.69
Current children cumulated vsize (KiB) 16664

[startup+4.105 s]
/proc/loadavg: 1.00 1.00 1.00 2/70 18927
/proc/meminfo: memFree=1128832/2055888 swapFree=4087076/4096564
[pid=18926] ppid=18924 vsize=16664 CPUtime=4.1
/proc/18926/stat : 18926 (kcnfs-2004) R 18924 18926 17638 0 -1 0 314 0 0 0 410 0 0 0 25 0 1 0 207662217 17063936 295 18446744073709551615 134512640 134953336 4294956704 18446744073709551615 134536944 0 0 4096 0 0 0 0 17 1 0 0
/proc/18926/statm: 4166 295 61 107 0 4055 0
Current children cumulated CPU time (s) 4.1
Current children cumulated vsize (KiB) 16664

Child status: 10
Real time (s): 4.19012
CPU time (s): 4.18736
CPU user time (s): 4.18536
CPU system time (s): 0.001999
CPU usage (%): 99.9341
Max. virtual memory (cumulated for all children) (KiB): 16664

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.18536
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 316
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= 3

runsolver used 0.005999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node76 on Mon Feb 19 09:23:59 UTC 2007

IDJOB= 299760
IDBENCH= 20018
IDSOLVER= 114
FILE ID= node76/299760-1171877039

PBS_JOBID= 3839762

Free space on /tmp= 66648 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S1031412672-05.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/299760-1171877039/kcnfs-2004 /tmp/evaluation/299760-1171877039/instance-299760-1171877039.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-299760-1171877039 -o ROOT/results/node76/solver-299760-1171877039 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/299760-1171877039/kcnfs-2004 /tmp/evaluation/299760-1171877039/instance-299760-1171877039.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  2e3fcbe567f2903b00fec23f53309ef8

RANDOM SEED= 71799133

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node76.alineos.net 2.6.9-34.ELsmp #1 SMP Thu Mar 9 06:23:23 GMT 2006 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		: 3000.219
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	: 6006.18
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		: 3000.219
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1130336 kB
Buffers:         44468 kB
Cached:         783780 kB
SwapCached:       3460 kB
Active:         590120 kB
Inactive:       248764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1130336 kB
SwapTotal:     4096564 kB
SwapFree:      4087076 kB
Dirty:            3164 kB
Writeback:           0 kB
Mapped:          15996 kB
Slab:            72940 kB
Committed_AS:   960112 kB
PageTables:       1428 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66648 MiB

End job on node76 on Mon Feb 19 09:24:03 UTC 2007