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

Namemps-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-misc06.opb
MD5SUMbdef34115ac72b2f3e13f56b51cc3420
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 206346968982065664
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 22661639986845859840
Number of bits of the biggest sum of numbers65
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables34058
Total number of constraints932
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)112
Number of constraints which are nor clauses,nor cardinality constraints820
Minimum length of a constraint1
Maximum length of a constraint8981

Trace number 10355

Launcher Data

LAUNCH ON wulflinc1 THE 2005-09-23 17:54:25 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9110 boxname=wulflinc1 idbench=906 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  bdef34115ac72b2f3e13f56b51cc3420  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-misc06.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-misc06.opb
IDLAUNCH: 9110
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.228
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:        879156 kB
Buffers:         13584 kB
Cached:         124116 kB
SwapCached:          0 kB
Active:          79228 kB
Inactive:        61376 kB
HighTotal:      131008 kB
HighFree:        10472 kB
LowTotal:       903652 kB
LowFree:        868684 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:             9348 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 17:55:58 (client local time) WITH STATUS 0 IN 90.6562 SECONDS
stats: 9110 7 90.6562 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/10919/stat): 10919 (pb2sat) R 10918 10919 4704 0 -1 0 18 0 0 0 0 0 0 0 19 0 1 0 22164555 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/10919/statm): 373 2 364 364 0 9 0
[pid=10919] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-misc06.opb

[startup+10.0016 s]
Raw data (loadavg): 0.92 0.94 0.91 2/55 10919
Raw data (/proc/10919/stat): 10919 (pb2sat) R 10918 10919 4704 0 -1 0 28609 0 0 0 935 61 0 0 25 0 1 0 22164555 83300352 17451 4294967295 134512640 135987407 3221224560 3221217156 135484741 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10919/statm): 20337 17451 364 364 0 19973 0
[pid=10919] vsize: 81348
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 81348

[startup+20.0024 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 10919
Raw data (/proc/10919/stat): 10919 (pb2sat) R 10918 10919 4704 0 -1 0 56254 0 0 0 1876 120 0 0 25 0 1 0 22164555 160743424 33855 4294967295 134512640 135987407 3221224560 3221214160 134856562 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10919/statm): 39244 33855 364 364 0 38880 0
[pid=10919] vsize: 156976
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 156976

[startup+30.0042 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 10919
Raw data (/proc/10919/stat): 10919 (pb2sat) R 10918 10919 4704 0 -1 0 95258 0 0 0 2790 204 0 0 25 0 1 0 22164555 310763520 50655 4294967295 134512640 135987407 3221224560 3221214604 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10919/statm): 75870 50655 364 364 0 75506 0
[pid=10919] vsize: 303480
Current children cumulated CPU time (s) 29.94
Current children cumulated vsize (Kb) 303480

[startup+40.004 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 10919
Raw data (/proc/10919/stat): 10919 (pb2sat) R 10918 10919 4704 0 -1 0 111282 0 0 0 3752 241 0 0 25 0 1 0 22164555 315629568 66407 4294967295 134512640 135987407 3221224560 3221213680 134887887 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10919/statm): 77058 66407 364 364 0 76694 0
[pid=10919] vsize: 308232
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 308232

[startup+50.0048 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 10919
Raw data (/proc/10919/stat): 10919 (pb2sat) R 10918 10919 4704 0 -1 0 153512 0 0 0 4658 332 0 0 25 0 1 0 22164555 645443584 89004 4294967295 134512640 135987407 3221224560 3221205952 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10919/statm): 157579 89004 364 364 0 157215 0
[pid=10919] vsize: 630316
Current children cumulated CPU time (s) 49.9
Current children cumulated vsize (Kb) 630316

[startup+60.0056 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 10919
Raw data (/proc/10919/stat): 10919 (pb2sat) R 10918 10919 4704 0 -1 0 189399 0 0 0 5579 411 0 0 25 0 1 0 22164555 581980160 100119 4294967295 134512640 135987407 3221224560 3221213488 134856380 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10919/statm): 142085 100119 364 364 0 141721 0
[pid=10919] vsize: 568340
Current children cumulated CPU time (s) 59.9
Current children cumulated vsize (Kb) 568340

[startup+70.0064 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 10919
Raw data (/proc/10919/stat): 10919 (pb2sat) R 10918 10919 4704 0 -1 0 205353 0 0 0 6543 447 0 0 25 0 1 0 22164555 586846208 115802 4294967295 134512640 135987407 3221224560 3221208892 134637002 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10919/statm): 143273 115802 364 364 0 142909 0
[pid=10919] vsize: 573092
Current children cumulated CPU time (s) 69.9
Current children cumulated vsize (Kb) 573092

[startup+80.0071 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 10919
Raw data (/proc/10919/stat): 10919 (pb2sat) R 10918 10919 4704 0 -1 0 221486 0 0 0 7505 484 0 0 25 0 1 0 22164555 591577088 131659 4294967295 134512640 135987407 3221224560 3221192640 134866192 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10919/statm): 144428 131659 364 364 0 144064 0
[pid=10919] vsize: 577712
Current children cumulated CPU time (s) 79.89
Current children cumulated vsize (Kb) 577712

[startup+90.0079 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 10919
Raw data (/proc/10919/stat): 10919 (pb2sat) R 10918 10919 4704 0 -1 0 236458 0 0 0 8471 517 0 0 25 0 1 0 22164555 934965248 146337 4294967295 134512640 135987407 3221224560 3221190944 135499907 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/10919/statm): 228263 146337 364 364 0 227899 0
[pid=10919] vsize: 913052
Current children cumulated CPU time (s) 89.88
Current children cumulated vsize (Kb) 913052



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+90.4641 s]
Raw data (loadavg): 0.98 0.95 0.91 1/55 10919
Raw data (/proc/10919/stat): 10919 (pb2sat) T 10918 10919 4704 0 -1 0 241714 0 0 0 8506 528 0 0 25 0 1 0 22164555 943751168 151419 4294967295 134512640 135987407 3221224560 3221190700 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/10919/statm): 230408 151419 364 364 0 230044 0
[pid=10919] vsize: 921632
Current children cumulated CPU time (s) 90.34
Current children cumulated vsize (Kb) 921632

Sending SIGTERM to -10919
Sleeping 2 seconds
Sending SIGKILL to -10919
One traced child (pid=10919) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 92.7784
CPU time (s): 90.6562
CPU user time (s): 85.0671
CPU system time (s): 5.58915
CPU usage (%): 97.7126
Max. virtual memory (cumulated for all children) (Kb): 921632

Verifier Data

ERROR: no interpretation found !