Trace number 298612

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 1.27481 1.27693

General information on the benchmark

Namerandom/OnTreshold/3SAT/v360/
unif-k3-r4.26-v360-c1533-S2109173872-19.SAT.shuffled.cnf
MD5SUMb65fe61c0cbfeaf475aa58cd1690d41f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.019996
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/298612-1171858779/kcnfs-2004   V. 03/02/12
0.00/0.01	c Input file : '/tmp/evaluation/298612-1171858779/instance-298612-1171858779.cnf' (adding resolvants)
1.23/1.27	c [360 variables, 1533 clauses, ratio 4.26, mean occ 6, 3-SAT]
1.23/1.27	s SATISFIABLE
1.23/1.27	v    -4  -186  -328  -334   -82
1.23/1.27	v    -7   123   143   -73   151
1.23/1.27	v  -281    74   103  -279  -360
1.23/1.27	v  -155   305    84  -199   292
1.23/1.27	v  -100  -243  -268   -93    20
1.23/1.27	v   325  -180    13  -358   208
1.23/1.27	v   345   324    -5   159   161
1.23/1.27	v   197   356  -280   -47  -185
1.23/1.27	v   -44    70  -354  -153  -101
1.23/1.27	v  -350    14  -284   221  -308
1.23/1.27	v  -285   158   -29   240   118
1.23/1.27	v  -150  -179  -163   263  -124
1.23/1.27	v  -301   135   260   -63   -11
1.23/1.27	v   162   309  -288  -307   316
1.23/1.27	v   169  -201   136    -1  -133
1.23/1.27	v   236   -52  -184  -195   327
1.23/1.27	v   265  -232   -83   -33    41
1.23/1.27	v   -68   273  -209  -166   -39
1.23/1.27	v  -275   276  -311   -57   337
1.23/1.27	v    -9   312    53  -349  -257
1.23/1.27	v   147  -233   217   219   242
1.23/1.27	v   -31   344  -182   323   342
1.23/1.27	v   -91  -256   148  -352    16
1.23/1.27	v  -340     3   104   -54    55
1.23/1.27	v   212  -343   -62  -138    66
1.23/1.27	v   -67   -94    69  -168  -234
1.23/1.27	v   331   245   224   -71   254
1.23/1.27	v   353  -229  -227   194   225
1.23/1.27	v   152   -75    96  -252   -86
1.23/1.27	v   -59   -35  -264    76   -87
1.23/1.27	v   -58   114  -333   106   137
1.23/1.27	v  -144   320   315   203   270
1.23/1.27	v  -157  -335   -45    38   251
1.23/1.27	v   128  -271  -228   190   130
1.23/1.27	v   250  -140  -306  -253  -102
1.23/1.27	v  -357   115  -105   -19   -40
1.23/1.27	v   -88   141    95   -25   294
1.23/1.27	v   -36   -42    49   213  -126
1.23/1.27	v  -196   283  -207   -56   110
1.23/1.27	v   216   198   164    92  -346
1.23/1.27	v   -18   214   329    30    32
1.23/1.27	v  -134   173   330  -274   204
1.23/1.27	v   218  -109   237   188   -27
1.23/1.27	v   267   177   181  -231   165
1.23/1.27	v  -139    21    65   160   -89
1.23/1.27	v   -64  -286   193  -272   255
1.23/1.27	v  -296  -319   220   127    -6
1.23/1.27	v  -122  -314   -99   348  -258
1.23/1.27	v    26  -215   -28   -60   321
1.23/1.27	v   142   304   317   239  -205
1.23/1.27	v   176   145   -22  -121  -125
1.23/1.27	v   171   303     2   339  -117
1.23/1.27	v   244   175   178   277   259
1.23/1.27	v  -187   189   191   200  -202
1.23/1.27	v  -230  -235   249  -262  -278
1.23/1.27	v   287  -298  -299  -313   336
1.23/1.27	v  -149   -12   192   -15    78
1.23/1.27	v   293  -172  -222    34  -223
1.23/1.27	v   351   -17   108     8   -37
1.23/1.27	v    48    51    85   -90   111
1.23/1.27	v  -113  -116   119  -120   132
1.23/1.27	v   146  -156  -183   238  -241
1.23/1.27	v  -246   248   269   302  -322
1.23/1.27	v   332  -347  -355   247    72
1.23/1.27	v  -167   -77  -107    61  -266
1.23/1.27	v   261    50    79   -81   -97
1.23/1.27	v  -129   170   210   289  -290
1.23/1.27	v  -295  -300  -310   318   326
1.23/1.27	v   359    24  -282   341   174
1.23/1.27	v    46    23  -297  -206   112
1.23/1.27	v  -211    43    10    80   -98
1.23/1.27	v   131   154  -226   291   338
1.23/1.27	v     0
1.23/1.27	c Computation time    : 1.260 seconds
1.23/1.27	c Execution time      : 1.270 seconds
1.23/1.27	c Size of search tree : 2314 nodes
1.23/1.27

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/node38/watcher-298612-1171858779 -o ROOT/results/node38/solver-298612-1171858779 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/298612-1171858779/kcnfs-2004 /tmp/evaluation/298612-1171858779/instance-298612-1171858779.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: 0.77 0.93 0.98 3/64 27394
/proc/meminfo: memFree=717520/2055920 swapFree=4183804/4192956
[pid=27394] ppid=27392 vsize=16552 CPUtime=0
/proc/27394/stat : 27394 (kcnfs-2004) R 27392 27394 21295 0 -1 0 198 0 0 0 0 0 0 0 18 0 1 0 205833766 16949248 177 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134522365 0 0 4096 0 0 0 0 17 1 0 0
/proc/27394/statm: 4138 177 40 107 0 4027 0

[startup+0.107221 s]
/proc/loadavg: 0.77 0.93 0.98 3/64 27394
/proc/meminfo: memFree=717520/2055920 swapFree=4183804/4192956
[pid=27394] ppid=27392 vsize=16600 CPUtime=0.1
/proc/27394/stat : 27394 (kcnfs-2004) R 27392 27394 21295 0 -1 0 294 0 0 0 10 0 0 0 18 0 1 0 205833766 16998400 273 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134578404 0 0 4096 0 0 0 0 17 1 0 0
/proc/27394/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 16600

[startup+0.515266 s]
/proc/loadavg: 0.77 0.93 0.98 3/64 27394
/proc/meminfo: memFree=717520/2055920 swapFree=4183804/4192956
[pid=27394] ppid=27392 vsize=16600 CPUtime=0.51
/proc/27394/stat : 27394 (kcnfs-2004) R 27392 27394 21295 0 -1 0 294 0 0 0 51 0 0 0 21 0 1 0 205833766 16998400 273 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134530260 0 0 4096 0 0 0 0 17 1 0 0
/proc/27394/statm: 4150 273 60 107 0 4039 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 16600

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

[startup+0.821301 s]
/proc/loadavg: 0.77 0.93 0.98 3/64 27394
/proc/meminfo: memFree=717520/2055920 swapFree=4183804/4192956
[pid=27394] ppid=27392 vsize=16600 CPUtime=0.81
/proc/27394/stat : 27394 (kcnfs-2004) R 27392 27394 21295 0 -1 0 295 0 0 0 81 0 0 0 24 0 1 0 205833766 16998400 274 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528595 0 0 4096 0 0 0 0 17 1 0 0
/proc/27394/statm: 4150 274 60 107 0 4039 0
Current children cumulated CPU time (s) 0.81
Current children cumulated vsize (KiB) 16600

[startup+1.23335 s]
/proc/loadavg: 0.77 0.93 0.98 2/65 27395
/proc/meminfo: memFree=716616/2055920 swapFree=4183804/4192956
[pid=27394] ppid=27392 vsize=16600 CPUtime=1.23
/proc/27394/stat : 27394 (kcnfs-2004) R 27392 27394 21295 0 -1 0 295 0 0 0 123 0 0 0 25 0 1 0 205833766 16998400 274 18446744073709551615 134512640 134953336 4294956624 18446744073709551615 134528710 0 0 4096 0 0 0 0 17 1 0 0
/proc/27394/statm: 4150 274 60 107 0 4039 0
Current children cumulated CPU time (s) 1.23
Current children cumulated vsize (KiB) 16600

Child status: 10
Real time (s): 1.27693
CPU time (s): 1.27481
CPU user time (s): 1.27381
CPU system time (s): 0.000999
CPU usage (%): 99.8336
Max. virtual memory (cumulated for all children) (KiB): 16600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.27381
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= 295
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= 1

runsolver used 0.004999 second user time and 0.006998 second system time

The end

Launcher Data (download as text)

Begin job on node38 on Mon Feb 19 04:19:39 UTC 2007

IDJOB= 298612
IDBENCH= 19990
IDSOLVER= 114
FILE ID= node38/298612-1171858779

PBS_JOBID= 3839655

Free space on /tmp= 66560 MiB

SOLVER NAME= KCNFS 2004
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/3SAT/v360/unif-k3-r4.26-v360-c1533-S2109173872-19.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/298612-1171858779/kcnfs-2004 /tmp/evaluation/298612-1171858779/instance-298612-1171858779.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node38/watcher-298612-1171858779 -o ROOT/results/node38/solver-298612-1171858779 -C 1200 -M 1800 --output-limit 1,15 --use-pty /tmp/evaluation/298612-1171858779/kcnfs-2004 /tmp/evaluation/298612-1171858779/instance-298612-1171858779.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  b65fe61c0cbfeaf475aa58cd1690d41f

RANDOM SEED= 386959032

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node38.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		: 3000.233
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		: 3000.233
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:        717992 kB
Buffers:         51896 kB
Cached:        1156040 kB
SwapCached:       3416 kB
Active:         840956 kB
Inactive:       377520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        717992 kB
SwapTotal:     4192956 kB
SwapFree:      4183804 kB
Dirty:            3328 kB
Writeback:           0 kB
Mapped:          16060 kB
Slab:           105456 kB
Committed_AS:   462208 kB
PageTables:       1472 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= 66560 MiB

End job on node38 on Mon Feb 19 04:19:41 UTC 2007