Trace number 426836

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 16.5565 16.561

General information on the benchmark

Namerandom/OnTreshold/3SAT/v400/
unif-k3-r4.26-v400-c1704-S1752604460-10.SAT.shuffled.cnf
MD5SUM26af42426194a43df413cae8f2aea334
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 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/426836-1177829398/kcnfs-2004   V. 03/02/12
0.00/0.01	c Input file : '/tmp/evaluation/426836-1177829398/instance-426836-1177829398.cnf' (adding resolvants)
16.49/16.55	c [400 variables, 1704 clauses, ratio 4.26, mean occ 6, 3-SAT]
16.49/16.55	s SATISFIABLE
16.49/16.55	v    84  -200   136   -52  -103
16.49/16.55	v  -201  -283  -240  -371  -273
16.49/16.55	v   146  -180   301   266  -361
16.49/16.55	v  -186   344   112   159  -219
16.49/16.55	v   -75  -236  -122  -350  -213
16.49/16.55	v   -83   202  -364    98   262
16.49/16.55	v  -268  -312  -189   -25    65
16.49/16.55	v   299   134  -183   315   -49
16.49/16.55	v  -166   -18  -289  -264   -11
16.49/16.55	v    62  -157   332    35   256
16.49/16.55	v   389     7    58    17   392
16.49/16.55	v  -192    40    43  -215   267
16.49/16.55	v  -290   197   376  -227    96
16.49/16.55	v   316   -24   104   -73  -374
16.49/16.55	v   -45   198  -270   314  -365
16.49/16.55	v  -313  -204  -106  -276  -282
16.49/16.55	v   342   306   338   339    90
16.49/16.55	v  -293   208  -362  -286  -319
16.49/16.55	v  -203  -277    41  -222   381
16.49/16.55	v   169   363  -248    32  -347
16.49/16.55	v    13  -330  -308   234   -48
16.49/16.55	v   -28   132     2  -137    86
16.49/16.55	v  -271    67   141  -323  -116
16.49/16.55	v   378  -207  -123   190  -281
16.49/16.55	v  -353   118    87  -128   298
16.49/16.55	v    47  -115  -349   165   171
16.49/16.55	v    93  -211   368   386  -238
16.49/16.55	v    91  -385  -100    29   -99
16.49/16.55	v  -394    68  -242   140  -184
16.49/16.55	v   205  -325   366   178   -39
16.49/16.55	v    33    27   -56    77    55
16.49/16.55	v  -335    70     5  -172   216
16.49/16.55	v   138   302   400   133   300
16.49/16.55	v    82   -85   221  -391  -177
16.49/16.55	v  -305   220  -272   196   -92
16.49/16.55	v  -317  -181   379  -380   265
16.49/16.55	v   384  -209   195  -388   333
16.49/16.55	v  -239    34  -360    64   254
16.49/16.55	v   -97   -59  -310   291   285
16.49/16.55	v  -102   -36  -255  -121     6
16.49/16.55	v  -348   320     9  -274   279
16.49/16.55	v   212   359    19   -88  -309
16.49/16.55	v    26  -230  -355   250  -105
16.49/16.55	v   111  -253   396   296  -373
16.49/16.55	v    21  -235  -143  -120   -42
16.49/16.55	v   318   -20   147  -357   383
16.49/16.55	v  -321   206   341   257   -95
16.49/16.55	v     3  -164   217   -81  -237
16.49/16.55	v   334   160  -352  -287   185
16.49/16.55	v   263   258  -225   -22   261
16.49/16.55	v  -275   -12  -343  -188   269
16.49/16.55	v   194   125   245   -72   249
16.49/16.55	v  -243   397  -244  -232   358
16.49/16.55	v    -8   224   148   260   -79
16.49/16.55	v   170   152  -233  -372    -1
16.49/16.55	v    61   356   -37  -382  -329
16.49/16.55	v   155   336  -351  -226   -69
16.49/16.55	v  -223   149    14   294   354
16.49/16.55	v   251  -142    50  -107    57
16.49/16.55	v  -284   -80   117     4   101
16.49/16.55	v    60   297  -259    76   119
16.49/16.55	v  -241   -15   231   288  -228
16.49/16.55	v   -44    10    46  -150  -322
16.49/16.55	v    31   369  -387    74   377
16.49/16.55	v  -191  -398  -163  -108   375
16.49/16.55	v   114   175  -210  -292   346
16.49/16.55	v  -345    53  -135  -182  -328
16.49/16.55	v   129    66   139  -307  -218
16.49/16.55	v   174  -326  -154  -390   247
16.49/16.55	v   399    51   278   -89   131
16.49/16.55	v   304   -78  -153   393  -324
16.49/16.55	v   340  -130   395  -280  -179
16.49/16.55	v   295  -199   303  -337  -193
16.49/16.55	v    16   187   113  -156   162
16.49/16.55	v    23  -173   109   144   -71
16.49/16.55	v    54   -63    94   110   124
16.49/16.55	v   126   127   145   151   158
16.49/16.55	v   161   167   168  -176   214
16.49/16.55	v   229  -246   252   311   327
16.49/16.55	v   331   367   370     0
16.49/16.55	c Computation time    : 16.540 seconds
16.49/16.55	c Execution time      : 16.550 seconds
16.49/16.55	c Size of search tree : 31300 nodes
16.49/16.55

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node30/watcher-426836-1177829398 -o ROOT/results/node30/solver-426836-1177829398 -C 5000 -W 7500 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/426836-1177829398/kcnfs-2004 /tmp/evaluation/426836-1177829398/instance-426836-1177829398.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.90 0.98 0.99 3/77 4565
/proc/meminfo: memFree=1505080/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16604 CPUtime=0
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 211 0 0 0 0 0 0 0 18 0 1 0 230855536 17002496 191 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134614467 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4151 191 40 107 0 4040 0

[startup+0.0287431 s]
/proc/loadavg: 0.90 0.98 0.99 3/77 4565
/proc/meminfo: memFree=1505080/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=0.02
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 312 0 0 0 2 0 0 0 18 0 1 0 230855536 17055744 292 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134577689 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 292 61 107 0 4053 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 16656

[startup+0.101747 s]
/proc/loadavg: 0.90 0.98 0.99 3/77 4565
/proc/meminfo: memFree=1505080/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=0.09
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 312 0 0 0 9 0 0 0 18 0 1 0 230855536 17055744 292 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134530806 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 292 61 107 0 4053 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 16656

[startup+0.30176 s]
/proc/loadavg: 0.90 0.98 0.99 3/77 4565
/proc/meminfo: memFree=1505080/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=0.29
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 312 0 0 0 29 0 0 0 19 0 1 0 230855536 17055744 292 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528139 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 292 61 107 0 4053 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16656

[startup+0.701783 s]
/proc/loadavg: 0.90 0.98 0.99 3/77 4565
/proc/meminfo: memFree=1505080/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=0.69
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 312 0 0 0 69 0 0 0 23 0 1 0 230855536 17055744 292 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134542710 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 292 61 107 0 4053 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16656

[startup+1.50183 s]
/proc/loadavg: 0.90 0.98 0.99 2/78 4566
/proc/meminfo: memFree=1504048/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=1.49
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 312 0 0 0 149 0 0 0 25 0 1 0 230855536 17055744 292 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528729 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 292 61 107 0 4053 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 16656

[startup+3.10193 s]
/proc/loadavg: 0.90 0.98 0.99 2/78 4566
/proc/meminfo: memFree=1503792/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=3.09
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 312 0 0 0 309 0 0 0 25 0 1 0 230855536 17055744 292 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134530900 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 292 61 107 0 4053 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 16656

[startup+6.30113 s]
/proc/loadavg: 0.91 0.98 0.99 2/78 4566
/proc/meminfo: memFree=1503792/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=6.29
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 313 0 0 0 629 0 0 0 25 0 1 0 230855536 17055744 293 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528695 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 293 61 107 0 4053 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 16656

[startup+12.7015 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 4566
/proc/meminfo: memFree=1503792/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=12.69
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 313 0 0 0 1269 0 0 0 25 0 1 0 230855536 17055744 293 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134528100 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 293 61 107 0 4053 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 16656

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

[startup+14.3056 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 4566
/proc/meminfo: memFree=1503792/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=14.29
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 313 0 0 0 1429 0 0 0 25 0 1 0 230855536 17055744 293 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134542752 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 293 61 107 0 4053 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 16656

[startup+15.9017 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 4566
/proc/meminfo: memFree=1503856/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=15.89
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 313 0 0 0 1589 0 0 0 25 0 1 0 230855536 17055744 293 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134531655 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 293 61 107 0 4053 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 16656

[startup+16.3018 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 4566
/proc/meminfo: memFree=1503856/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=16.29
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 313 0 0 0 1629 0 0 0 25 0 1 0 230855536 17055744 293 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134529191 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 293 61 107 0 4053 0
Current children cumulated CPU time (s) 16.29
Current children cumulated vsize (KiB) 16656

[startup+16.5058 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 4566
/proc/meminfo: memFree=1503856/2055920 swapFree=4157032/4192956
[pid=4565] ppid=4563 vsize=16656 CPUtime=16.49
/proc/4565/stat : 4565 (kcnfs-2004) R 4563 4565 2720 0 -1 0 313 0 0 0 1649 0 0 0 25 0 1 0 230855536 17055744 293 18446744073709551615 134512640 134953336 4294956656 18446744073709551615 134542892 0 0 4096 0 0 0 0 17 1 0 0
/proc/4565/statm: 4164 293 61 107 0 4053 0
Current children cumulated CPU time (s) 16.49
Current children cumulated vsize (KiB) 16656

Child status: 10
Real time (s): 16.561
CPU time (s): 16.5565
CPU user time (s): 16.5535
CPU system time (s): 0.002999
CPU usage (%): 99.973
Max. virtual memory (cumulated for all children) (KiB): 16656

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.5535
system time used= 0.002999
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= 347

runsolver used 0.015997 second user time and 0.039993 second system time

The end

Launcher Data (download as text)

Begin job on node30 on Sun Apr 29 06:49:58 UTC 2007

IDJOB= 426836
IDBENCH= 20017
IDSOLVER= 194
FILE ID= node30/426836-1177829398

PBS_JOBID= 4718234

Free space on /tmp= 66561 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v400/unif-k3-r4.26-v400-c1704-S1752604460-10.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/426836-1177829398/kcnfs-2004 /tmp/evaluation/426836-1177829398/instance-426836-1177829398.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-426836-1177829398 -o ROOT/results/node30/solver-426836-1177829398 -C 5000 -W 7500 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/426836-1177829398/kcnfs-2004 /tmp/evaluation/426836-1177829398/instance-426836-1177829398.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  26af42426194a43df413cae8f2aea334

RANDOM SEED= 134387305

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node30.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		: 3000.218
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		: 3000.218
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:       1505488 kB
Buffers:         51044 kB
Cached:         407936 kB
SwapCached:      15660 kB
Active:         259220 kB
Inactive:       223324 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1505488 kB
SwapTotal:     4192956 kB
SwapFree:      4157032 kB
Dirty:            3292 kB
Writeback:           0 kB
Mapped:          30240 kB
Slab:            53428 kB
Committed_AS:  3641924 kB
PageTables:       1776 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 node30 on Sun Apr 29 06:50:15 UTC 2007