Trace number 294754

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
minimarch 2007-02-08SAT 5.78812 5.79147

General information on the benchmark

Namerandom/OnTreshold/7SAT/v50/
unif-k7-r89-v50-c4450-S1718130589-01.SAT.shuffled.cnf
MD5SUM92a81fb7daa035c842fe0ed87fafd083
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.411936
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses4450
Sum of the clauses size31150
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54450

Solver Data (download as text)

0.00/0.00	This is MiniMarch, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  50                                                   |
0.00/0.00	|  Number of clauses:    4450                                                 |
0.00/0.01	|  Parsing time:         0.02         s                                       |
0.10/0.15	============================[ Search Statistics ]==============================
0.10/0.15	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.10/0.15	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.10/0.15	===============================================================================
0.10/0.15	|         0 |      50     4450    31150 |     1483        0    nan |  0.000 % |
0.10/0.16	|       100 |      50     4450    31150 |     1631      100     19 |  0.041 % |
0.10/0.16	|       250 |      50     4450    31150 |     1794      250     19 |  0.041 % |
0.10/0.17	|       475 |      50     4450    31150 |     1974      475     19 |  0.041 % |
0.10/0.19	|       812 |      50     4450    31150 |     2171      812     19 |  0.041 % |
0.20/0.21	|      1318 |      50     4450    31150 |     2388     1318     19 |  0.041 % |
0.20/0.25	|      2077 |      50     4450    31150 |     2627     2077     19 |  0.041 % |
0.30/0.31	|      3216 |      50     4450    31150 |     2890     1889     18 |  0.041 % |
0.30/0.40	|      4924 |      50     4450    31150 |     3179     2141     18 |  0.041 % |
0.51/0.54	|      7487 |      50     4450    31150 |     3497     3103     18 |  0.041 % |
0.71/0.75	|     11332 |      50     4450    31150 |     3847     3428     18 |  0.041 % |
1.02/1.08	|     17098 |      50     4450    31150 |     4232     3388     17 |  0.041 % |
1.53/1.57	|     25747 |      50     4450    31150 |     4655     3530     17 |  0.041 % |
2.35/2.37	|     38722 |      50     4450    31150 |     5120     2473     17 |  0.041 % |
3.48/3.57	|     58184 |      50     4450    31150 |     5632     3942     16 |  0.041 % |
5.42/5.45	|     87377 |      50     4450    31150 |     6196     4874     17 |  0.041 % |
5.73/5.78	===============================================================================
5.73/5.78	lookaheads            : 95410
5.73/5.78	variable balance      : 0.00
5.73/5.78	restarts              : 16
5.73/5.78	conflicts             : 92408          (15968 /sec)
5.73/5.78	decisions             : 95411          (1.80 % random) (16487 /sec)
5.73/5.78	decision = positive   : 46129
5.73/5.78	decision = negative   : 49281
5.73/5.78	propagations          : 888233         (153484 /sec)
5.73/5.78	conflict literals     : 1605967        (13.65 % deleted)
5.73/5.78	Memory used           : 2.87 MB
5.73/5.78	CPU time              : 5.78712 s
5.73/5.78	
5.73/5.78	s SATISFIABLE
5.73/5.78	v 1 -2 -3 -4 5 -6 -7 8 -9 -10 -11 12 13 14 15 16 17 -18 19 -20 -21 22 -23 24 -25 -26 -27 -28 29 -30 -31 -32 -33 -34 35 -36 -37 38 39 40 -41 -42 -43 44 -45 46 47 48 49 -50 0

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/node41/watcher-294754-1171794027 -o ROOT/results/node41/solver-294754-1171794027 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/294754-1171794027/minimarch /tmp/evaluation/294754-1171794027/instance-294754-1171794027.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 21472
/proc/meminfo: memFree=1213640/2055920 swapFree=4183936/4192956
[pid=21472] ppid=21470 vsize=1868 CPUtime=0
/proc/21472/stat : 21472 (minimarch) R 21470 21472 20403 0 -1 4194304 158 0 0 0 0 0 0 0 18 0 1 0 199358633 1912832 142 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/21472/statm: 467 143 51 132 0 332 0

[startup+0.106101 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 21472
/proc/meminfo: memFree=1213640/2055920 swapFree=4183936/4192956
[pid=21472] ppid=21470 vsize=2128 CPUtime=0.1
/proc/21472/stat : 21472 (minimarch) R 21470 21472 20403 0 -1 4194304 226 0 0 0 10 0 0 0 18 0 1 0 199358633 2179072 210 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134523047 0 0 4096 3 0 0 0 17 1 0 0
/proc/21472/statm: 532 210 63 132 0 397 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2128

[startup+0.514136 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 21472
/proc/meminfo: memFree=1213640/2055920 swapFree=4183936/4192956
[pid=21472] ppid=21470 vsize=2392 CPUtime=0.51
/proc/21472/stat : 21472 (minimarch) R 21470 21472 20403 0 -1 4194304 286 0 0 0 51 0 0 0 21 0 1 0 199358633 2449408 270 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134551185 0 0 4096 3 0 0 0 17 1 0 0
/proc/21472/statm: 598 270 66 132 0 463 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2392

[startup+1.33421 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 21473
/proc/meminfo: memFree=1212608/2055920 swapFree=4183936/4192956
[pid=21472] ppid=21470 vsize=2524 CPUtime=1.33
/proc/21472/stat : 21472 (minimarch) R 21470 21472 20403 0 -1 4194304 336 0 0 0 133 0 0 0 25 0 1 0 199358633 2584576 320 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134551352 0 0 4096 3 0 0 0 17 1 0 0
/proc/21472/statm: 631 320 66 132 0 496 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 2524

[startup+2.97035 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 21473
/proc/meminfo: memFree=1212352/2055920 swapFree=4183936/4192956
[pid=21472] ppid=21470 vsize=2792 CPUtime=2.96
/proc/21472/stat : 21472 (minimarch) R 21470 21472 20403 0 -1 4194304 388 0 0 0 296 0 0 0 25 0 1 0 199358633 2859008 372 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134551262 0 0 4096 3 0 0 0 17 1 0 0
/proc/21472/statm: 698 372 66 132 0 563 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 2792

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

[startup+3.27638 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 21473
/proc/meminfo: memFree=1212352/2055920 swapFree=4183936/4192956
[pid=21472] ppid=21470 vsize=2792 CPUtime=3.27
/proc/21472/stat : 21472 (minimarch) R 21470 21472 20403 0 -1 4194304 395 0 0 0 327 0 0 0 25 0 1 0 199358633 2859008 379 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/21472/statm: 698 379 66 132 0 563 0
Current children cumulated CPU time (s) 3.27
Current children cumulated vsize (KiB) 2792

[startup+4.91652 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 21473
/proc/meminfo: memFree=1211968/2055920 swapFree=4183936/4192956
[pid=21472] ppid=21470 vsize=2936 CPUtime=4.91
/proc/21472/stat : 21472 (minimarch) R 21470 21472 20403 0 -1 4194304 430 0 0 0 491 0 0 0 25 0 1 0 199358633 3006464 414 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134551269 0 0 4096 3 0 0 0 17 1 0 0
/proc/21472/statm: 734 414 66 132 0 599 0
Current children cumulated CPU time (s) 4.91
Current children cumulated vsize (KiB) 2936

[startup+5.32456 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 21473
/proc/meminfo: memFree=1211968/2055920 swapFree=4183936/4192956
[pid=21472] ppid=21470 vsize=2936 CPUtime=5.32
/proc/21472/stat : 21472 (minimarch) R 21470 21472 20403 0 -1 4194304 437 0 0 0 532 0 0 0 25 0 1 0 199358633 3006464 421 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134551219 0 0 4096 3 0 0 0 17 1 0 0
/proc/21472/statm: 734 421 66 132 0 599 0
Current children cumulated CPU time (s) 5.32
Current children cumulated vsize (KiB) 2936

[startup+5.73659 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 21473
/proc/meminfo: memFree=1211904/2055920 swapFree=4183936/4192956
[pid=21472] ppid=21470 vsize=2936 CPUtime=5.73
/proc/21472/stat : 21472 (minimarch) R 21470 21472 20403 0 -1 4194304 444 0 0 0 573 0 0 0 25 0 1 0 199358633 3006464 428 18446744073709551615 134512640 135054332 4294956624 18446744073709551615 134551669 0 0 4096 3 0 0 0 17 1 0 0
/proc/21472/statm: 734 428 66 132 0 599 0
Current children cumulated CPU time (s) 5.73
Current children cumulated vsize (KiB) 2936

Child status: 10
Real time (s): 5.79147
CPU time (s): 5.78812
CPU user time (s): 5.78712
CPU system time (s): 0.000999
CPU usage (%): 99.9421
Max. virtual memory (cumulated for all children) (KiB): 2936

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.78712
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= 452
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 0.005999 second user time and 0.021996 second system time

The end

Launcher Data (download as text)

Begin job on node41 on Sun Feb 18 10:20:27 UTC 2007

IDJOB= 294754
IDBENCH= 19896
IDSOLVER= 110
FILE ID= node41/294754-1171794027

PBS_JOBID= 3839561

Free space on /tmp= 66562 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v50/unif-k7-r89-v50-c4450-S1718130589-01.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/294754-1171794027/minimarch /tmp/evaluation/294754-1171794027/instance-294754-1171794027.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node41/watcher-294754-1171794027 -o ROOT/results/node41/solver-294754-1171794027 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/294754-1171794027/minimarch /tmp/evaluation/294754-1171794027/instance-294754-1171794027.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  92a81fb7daa035c842fe0ed87fafd083

RANDOM SEED= 271564100

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node41.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		: 3000.231
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		: 3000.231
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:       1214048 kB
Buffers:         41904 kB
Cached:         712088 kB
SwapCached:       3732 kB
Active:         613236 kB
Inactive:       151100 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1214048 kB
SwapTotal:     4192956 kB
SwapFree:      4183936 kB
Dirty:            2376 kB
Writeback:           0 kB
Mapped:          15408 kB
Slab:            63488 kB
Committed_AS:   392556 kB
PageTables:       1476 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= 66562 MiB

End job on node41 on Sun Feb 18 10:20:33 UTC 2007