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 in four parts:
  1. 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 provide some useful information on the computer.
  2. 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 !
  3. 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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    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.
  4. 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.

General information on the benchmark

Namesubmitted/een/normalized-stein45.opb
MD5SUM34647f6a75058de4a92f0ff94f3c9005
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 30
Optimality of the best value was proved YES
Number of terms in the objective function 45
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 45
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 22
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 67
Number of bits of the biggest sum of numbers7
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark82.1775
Number of variables45
Total number of constraints331
Number of constraints which are clauses330
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint45

Trace number 2223

Launcher Data

LAUNCH ON wulflinc10 THE 2005-09-18 18:30:46 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=2634 boxname=wulflinc10 idbench=290 idsolver=3 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  34647f6a75058de4a92f0ff94f3c9005  /oldhome/oroussel/tmp/wulflinc10/normalized-stein45.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc10/normalized-stein45.opb
IDLAUNCH: 2634
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        923552 kB
Buffers:         35048 kB
Cached:          49792 kB
SwapCached:        228 kB
Active:          66240 kB
Inactive:        21496 kB
HighTotal:      131008 kB
HighFree:        77532 kB
LowTotal:       903652 kB
LowFree:        846020 kB
SwapTotal:     2097136 kB
SwapFree:      2096756 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           6272 kB
Slab:            17900 kB
Committed_AS:    64164 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-18 18:32:08 (client local time) WITH STATUS 30 IN 82.1775 SECONDS
stats: 2634 0 82.1775 30

Solver Data

c Parsing PB file...
c Converting 331 PB-constraints to clauses...
c   -- Unit propagations: (none)
c   -- Detecting intervals from adjacent constraints: (none)
c   -- Clauses(.)/Splits(s): ..........................................................................................................................................................................................................................................................................................................................................
c ---[   0]---> Sorter-cost:  718     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    1097     2792 |     365       0        0     nan |  0.000 % |
c ==============================================================================
c Found solution: 40
c ---[   0]---> Sorter-cost:  288     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         0 |    1772     4390 |     590       0        0     nan |  0.000 % |
c ==============================================================================
c Found solution: 33
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |         6 |    1835     4553 |     611       5       25     5.0 |  0.000 % |
c ==============================================================================
c Found solution: 32
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |        36 |    1852     4599 |     617      35      658    18.8 |  0.000 % |
c |       137 |    1827     4544 |     678     134     3074    22.9 |  3.108 % |
c |       287 |    1827     4544 |     746     284     6351    22.4 |  3.111 % |
c ==============================================================================
c Found solution: 31
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |       339 |    1822     4529 |     607     334     6918    20.7 |  3.111 % |
c |       439 |    1822     4529 |     667     434     8555    19.7 |  4.132 % |
c |       589 |    1822     4529 |     734     584    10702    18.3 |  4.132 % |
c |       814 |    1822     4529 |     807     809    14269    17.6 |  4.132 % |
c |      1151 |    1822     4529 |     888     693    10396    15.0 |  4.132 % |
c |      1657 |    1822     4529 |     977     658     9665    14.7 |  4.131 % |
c |      2416 |    1822     4529 |    1075     825    11267    13.7 |  4.132 % |
c |      3555 |    1822     4529 |    1182     681     7994    11.7 |  4.132 % |
c |      5265 |    1822     4529 |    1301     984    15195    15.4 |  4.131 % |
c |      7827 |    1822     4529 |    1431    1231    16016    13.0 |  4.132 % |
c ==============================================================================
c Found solution: 30
c ---[   0]---> Sorter-cost:    0     Base:
c ==================================[MINISAT+]==================================
c | Conflicts | Original         | Learnt                           | Progress |
c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
c ==============================================================================
c |     10368 |    1848     4597 |     616    1355    16598    12.2 |  4.132 % |
c |     10471 |    1848     4597 |     677     442     4681    10.6 |  4.205 % |
c |     10621 |    1848     4597 |     745     592     6666    11.3 |  4.205 % |
c |     10847 |    1848     4597 |     819     818    10271    12.6 |  4.205 % |
c |     11185 |    1848     4597 |     901     618     6949    11.2 |  4.205 % |
c |     11691 |    1848     4597 |     992    1124    15149    13.5 |  4.204 % |
c |     12451 |    1848     4597 |    1091     779     9833    12.6 |  4.206 % |
c |     13590 |    1848     4597 |    1200    1247    16555    13.3 |  4.206 % |
c |     15299 |    1848     4597 |    1320     911    11059    12.1 |  4.204 % |
c |     17861 |    1848     4597 |    1452    1187    15278    12.9 |  4.206 % |
c |     21706 |    1832     4561 |    1597    1650    21578    13.1 |  4.786 % |
c |     27473 |    1832     4561 |    1757    1010    14303    14.2 |  4.783 % |
c |     36122 |    1832     4561 |    1933    1638    15959     9.7 |  4.786 % |
c |     49096 |    1818     4529 |    2126    1638    22277    13.6 |  5.367 % |
c |     68557 |    1818     4529 |    2339    2178    24789    11.4 |  5.367 % |
c |     97749 |    1804     4498 |    2573    1692    19286    11.4 |  6.385 % |
c |    141539 |    1692     4226 |    2830    2047    26214    12.8 | 10.293 % |
c |    207224 |    1658     4133 |    3113    2706    40913    15.1 | 11.022 % |
c |    305750 |    1436     3568 |    3424    2549    25185     9.9 | 20.299 % |
c ==============================================================================
c Optimal solution: 30
s OPTIMUM FOUND
v x0 x1 x2 x3 x4 x5 -x6 x7 x8 x9 x10 -x11 x12 -x13 -x14 -x15 x16 x17 -x18 -x19 x20 x21 x22 -x23 x24 -x25 x26 -x27 x28 x29 -x30 -x31 x32 x33 x34 x35 -x36 -x37 x38 x39 x40 x41 x42 -x43 x44
c _______________________________________________________________________________
c 
c restarts              : 35
c conflicts             : 319328         (3889 /sec)
c decisions             : 364626         (4440 /sec)
c propagations          : 0              (0 /sec)
c inspects              : 0              (0 /sec)
c CPU time              : 82.1165 s
c _______________________________________________________________________________

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/30839/stat): 30839 (minisat+_script) R 30838 30839 22582 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1785239189 712704 3 4294967295 134512640 135087896 3221224512 3221224512 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/30839/statm): 174 3 169 147 0 27 0
[pid=30839] vsize: 696
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libtermcap.so.2
open syscall for file tls/i686/libtermcap.so.2
open syscall for file tls/mmx/libtermcap.so.2
open syscall for file tls/libtermcap.so.2
open syscall for file i686/mmx/libtermcap.so.2
open syscall for file i686/libtermcap.so.2
open syscall for file mmx/libtermcap.so.2
open syscall for file libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/i686/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/tls/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/i686/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/i686/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/mmx/libtermcap.so.2
open syscall for file /oldhome/oroussel/lib/libtermcap.so.2
open syscall for file /etc/ld.so.cache
open syscall for file /lib/libtermcap.so.2
open syscall for file tls/i686/mmx/libdl.so.2
open syscall for file tls/i686/libdl.so.2
open syscall for file tls/mmx/libdl.so.2
open syscall for file tls/libdl.so.2
open syscall for file i686/mmx/libdl.so.2
open syscall for file i686/libdl.so.2
open syscall for file mmx/libdl.so.2
open syscall for file libdl.so.2
open syscall for file /oldhome/oroussel/lib/libdl.so.2
open syscall for file /lib/libdl.so.2
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /lib/tls/libc.so.6
open syscall for file /dev/tty
open syscall for file /etc/mtab
open syscall for file /proc/meminfo
open syscall for file /oldhome/oroussel/solvers/minisat+_script
New process pid=30840
New process pid=30841
New process pid=30842
execve syscall for /bin/sed executable
One traced child (pid=30841) exited with status: 0
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/i686/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/tls/libc.so.6
open syscall for file /oldhome/oroussel/lib/i686/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/i686/libc.so.6
open syscall for file /oldhome/oroussel/lib/mmx/libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /etc/ld.so.cache
open syscall for file /lib/tls/libc.so.6
One traced child (pid=30842) exited with status: 0
One traced child (pid=30840) exited with status: 0
New process pid=30843
execve syscall for /oldhome/oroussel/solvers/minisat+_64-bit_static executable
open syscall for file /dev/null
open syscall for file /oldhome/oroussel/tmp/wulflinc10/normalized-stein45.opb

[startup+10.003 s]
Raw data (loadavg): 0.93 0.97 0.99 2/57 30843
Raw data (/proc/30839/stat): 30839 (minisat+_script) S 30838 30839 22582 0 -1 0 288 239 0 0 0 0 0 0 22 0 1 0 1785239189 2174976 226 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (/proc/30839/statm): 531 226 485 147 0 384 0
[pid=30839] vsize: 2124
Raw data (/proc/30843/stat): 30843 (minisat+_64-bit) R 30839 30839 22582 0 -1 0 251 0 0 0 992 1 0 0 25 0 1 0 1785239193 1318912 238 4294967295 134512640 135094434 3221224448 3221223104 134557866 0 0 5 16386 0 0 0 17 0 0 0
Raw data (/proc/30843/statm): 322 238 145 145 0 177 0
[pid=30843] vsize: 1288
Current children cumulated CPU time (s) 9.93
Current children cumulated vsize (Kb) 3412

[startup+20.0046 s]
Raw data (loadavg): 0.94 0.97 0.99 2/57 30843
Raw data (/proc/30839/stat): 30839 (minisat+_script) S 30838 30839 22582 0 -1 0 288 239 0 0 0 0 0 0 22 0 1 0 1785239189 2174976 226 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (/proc/30839/statm): 531 226 485 147 0 384 0
[pid=30839] vsize: 2124
Raw data (/proc/30843/stat): 30843 (minisat+_64-bit) R 30839 30839 22582 0 -1 0 281 0 0 0 1990 1 0 0 25 0 1 0 1785239193 1441792 268 4294967295 134512640 135094434 3221224448 3221223072 134557642 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/30843/statm): 352 268 145 145 0 207 0
[pid=30843] vsize: 1408
Current children cumulated CPU time (s) 19.91
Current children cumulated vsize (Kb) 3532

[startup+30.0051 s]
Raw data (loadavg): 0.95 0.97 0.99 2/57 30843
Raw data (/proc/30839/stat): 30839 (minisat+_script) S 30838 30839 22582 0 -1 0 288 239 0 0 0 0 0 0 22 0 1 0 1785239189 2174976 226 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (/proc/30839/statm): 531 226 485 147 0 384 0
[pid=30839] vsize: 2124
Raw data (/proc/30843/stat): 30843 (minisat+_64-bit) R 30839 30839 22582 0 -1 0 302 0 0 0 2990 1 0 0 25 0 1 0 1785239193 1523712 289 4294967295 134512640 135094434 3221224448 3221223104 134557917 0 0 5 16386 0 0 0 17 0 0 0
Raw data (/proc/30843/statm): 372 289 145 145 0 227 0
[pid=30843] vsize: 1488
Current children cumulated CPU time (s) 29.91
Current children cumulated vsize (Kb) 3612

[startup+40.0057 s]
Raw data (loadavg): 0.95 0.97 0.99 2/57 30843
Raw data (/proc/30839/stat): 30839 (minisat+_script) S 30838 30839 22582 0 -1 0 288 239 0 0 0 0 0 0 22 0 1 0 1785239189 2174976 226 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (/proc/30839/statm): 531 226 485 147 0 384 0
[pid=30839] vsize: 2124
Raw data (/proc/30843/stat): 30843 (minisat+_64-bit) R 30839 30839 22582 0 -1 0 317 0 0 0 3988 2 0 0 25 0 1 0 1785239193 1585152 304 4294967295 134512640 135094434 3221224448 3221223104 134558019 0 0 5 16386 0 0 0 17 0 0 0
Raw data (/proc/30843/statm): 387 304 145 145 0 242 0
[pid=30843] vsize: 1548
Current children cumulated CPU time (s) 39.9
Current children cumulated vsize (Kb) 3672

[startup+50.0062 s]
Raw data (loadavg): 0.96 0.97 0.99 2/57 30843
Raw data (/proc/30839/stat): 30839 (minisat+_script) S 30838 30839 22582 0 -1 0 288 239 0 0 0 0 0 0 22 0 1 0 1785239189 2174976 226 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (/proc/30839/statm): 531 226 485 147 0 384 0
[pid=30839] vsize: 2124
Raw data (/proc/30843/stat): 30843 (minisat+_64-bit) R 30839 30839 22582 0 -1 0 328 0 0 0 4988 2 0 0 25 0 1 0 1785239193 1630208 315 4294967295 134512640 135094434 3221224448 3221223104 134557937 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/30843/statm): 398 315 145 145 0 253 0
[pid=30843] vsize: 1592
Current children cumulated CPU time (s) 49.9
Current children cumulated vsize (Kb) 3716

[startup+60.0068 s]
Raw data (loadavg): 0.97 0.97 0.99 2/57 30843
Raw data (/proc/30839/stat): 30839 (minisat+_script) S 30838 30839 22582 0 -1 0 288 239 0 0 0 0 0 0 22 0 1 0 1785239189 2174976 226 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (/proc/30839/statm): 531 226 485 147 0 384 0
[pid=30839] vsize: 2124
Raw data (/proc/30843/stat): 30843 (minisat+_64-bit) R 30839 30839 22582 0 -1 0 349 0 0 0 5987 3 0 0 25 0 1 0 1785239193 1716224 336 4294967295 134512640 135094434 3221224448 3221223120 134555568 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/30843/statm): 419 336 145 145 0 274 0
[pid=30843] vsize: 1676
Current children cumulated CPU time (s) 59.9
Current children cumulated vsize (Kb) 3800

[startup+70.0084 s]
Raw data (loadavg): 0.97 0.97 0.99 2/57 30843
Raw data (/proc/30839/stat): 30839 (minisat+_script) S 30838 30839 22582 0 -1 0 288 239 0 0 0 0 0 0 22 0 1 0 1785239189 2174976 226 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (/proc/30839/statm): 531 226 485 147 0 384 0
[pid=30839] vsize: 2124
Raw data (/proc/30843/stat): 30843 (minisat+_64-bit) R 30839 30839 22582 0 -1 0 361 0 0 0 6987 3 0 0 25 0 1 0 1785239193 1765376 348 4294967295 134512640 135094434 3221224448 3221223136 134554731 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/30843/statm): 431 348 145 145 0 286 0
[pid=30843] vsize: 1724
Current children cumulated CPU time (s) 69.9
Current children cumulated vsize (Kb) 3848

[startup+80.0089 s]
Raw data (loadavg): 0.98 0.97 0.99 2/57 30843
Raw data (/proc/30839/stat): 30839 (minisat+_script) S 30838 30839 22582 0 -1 0 288 239 0 0 0 0 0 0 22 0 1 0 1785239189 2174976 226 4294967295 134512640 135087896 3221224512 3221223784 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (/proc/30839/statm): 531 226 485 147 0 384 0
[pid=30839] vsize: 2124
Raw data (/proc/30843/stat): 30843 (minisat+_64-bit) R 30839 30839 22582 0 -1 0 370 0 0 0 7987 3 0 0 25 0 1 0 1785239193 1802240 357 4294967295 134512640 135094434 3221224448 3221223104 134558213 0 0 5 16386 0 0 0 17 1 0 0
Raw data (/proc/30843/statm): 440 357 145 145 0 295 0
[pid=30843] vsize: 1760
Current children cumulated CPU time (s) 79.9
Current children cumulated vsize (Kb) 3884
One traced child (pid=30843) exited with status: 30
One traced child (pid=30839) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 82.2627
CPU time (s): 82.1775
CPU user time (s): 82.1235
CPU system time (s): 0.053991
CPU usage (%): 99.8964
Max. virtual memory (cumulated for all children) (Kb): 3884

Verifier Data

Verifier:	OK	30