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-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-sctap2.opb
MD5SUMc5a9e8be191d07f712a0a357db2fa392
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 65305313280
Optimality of the best value was proved NO
Number of terms in the objective function 42300
Biggest coefficient in the objective function 42949672960
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 26381836591110
Number of bits of the sum of numbers in the objective function 45
Biggest number in a constraint 42949672960
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 26381836591110
Number of bits of the biggest sum of numbers45
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1203.32
Number of variables56400
Total number of constraints1090
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1090
Minimum length of a constraint90
Maximum length of a constraint720

Trace number 9920

Launcher Data

LAUNCH ON wulflinc13 THE 2005-09-23 16:10:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8671 boxname=wulflinc13 idbench=467 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  c5a9e8be191d07f712a0a357db2fa392  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-sctap2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-sctap2.opb
IDLAUNCH: 8671
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.180
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		: 451.180
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        919512 kB
Buffers:         13948 kB
Cached:          82408 kB
SwapCached:          0 kB
Active:          49484 kB
Inactive:        49800 kB
HighTotal:      131008 kB
HighFree:        44996 kB
LowTotal:       903652 kB
LowFree:        874516 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10252 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:12:56 (client local time) WITH STATUS 0 IN 120.892 SECONDS
stats: 8671 7 120.892 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/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21523029 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/7610/statm): 373 2 364 364 0 9 0
[pid=7610] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-sctap2.opb

[startup+10.0012 s]
Raw data (loadavg): 0.86 0.93 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 2609 0 0 0 991 7 0 0 25 0 1 0 21523029 9641984 1921 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7610/statm): 2354 1921 364 364 0 1990 0
[pid=7610] vsize: 9416
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 9416

[startup+20.0029 s]
Raw data (loadavg): 0.88 0.94 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 4203 0 0 0 1987 11 0 0 25 0 1 0 21523029 15228928 2768 4294967295 134512640 135987407 3221224560 3221221872 134555852 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7610/statm): 3718 2768 364 364 0 3354 0
[pid=7610] vsize: 14872
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 14872

[startup+30.0026 s]
Raw data (loadavg): 0.90 0.94 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 4473 0 0 0 2986 12 0 0 25 0 1 0 21523029 15904768 3032 4294967295 134512640 135987407 3221224560 3221221872 134555859 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7610/statm): 3883 3032 364 364 0 3519 0
[pid=7610] vsize: 15532
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 15532

[startup+40.0022 s]
Raw data (loadavg): 0.91 0.94 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 16405 0 0 0 3956 42 0 0 25 0 1 0 21523029 68214784 10587 4294967295 134512640 135987407 3221224560 3221205348 134892396 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7610/statm): 16654 10587 364 364 0 16290 0
[pid=7610] vsize: 66616
Current children cumulated CPU time (s) 39.98
Current children cumulated vsize (Kb) 66616

[startup+50.0029 s]
Raw data (loadavg): 0.92 0.94 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 50023 0 0 0 4882 114 0 0 25 0 1 0 21523029 163373056 27496 4294967295 134512640 135987407 3221224560 3221192944 134877708 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7610/statm): 39886 27496 364 364 0 39522 0
[pid=7610] vsize: 159544
Current children cumulated CPU time (s) 49.96
Current children cumulated vsize (Kb) 159544

[startup+60.0026 s]
Raw data (loadavg): 0.94 0.94 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 82433 0 0 0 5812 182 0 0 25 0 1 0 21523029 330985472 49945 4294967295 134512640 135987407 3221224560 3221194528 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7610/statm): 80807 49945 364 364 0 80443 0
[pid=7610] vsize: 323228
Current children cumulated CPU time (s) 59.94
Current children cumulated vsize (Kb) 323228

[startup+70.0032 s]
Raw data (loadavg): 0.95 0.94 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 106630 0 0 0 6754 239 0 0 25 0 1 0 21523029 318664704 61599 4294967295 134512640 135987407 3221224560 3221186940 135480440 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7610/statm): 77799 61599 364 364 0 77435 0
[pid=7610] vsize: 311196
Current children cumulated CPU time (s) 69.93
Current children cumulated vsize (Kb) 311196

[startup+80.0039 s]
Raw data (loadavg): 0.95 0.95 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 149476 0 0 0 7657 334 0 0 25 0 1 0 21523029 448229376 84799 4294967295 134512640 135987407 3221224560 3221181616 134878317 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7610/statm): 109431 84799 364 364 0 109067 0
[pid=7610] vsize: 437724
Current children cumulated CPU time (s) 79.91
Current children cumulated vsize (Kb) 437724

[startup+90.0035 s]
Raw data (loadavg): 0.96 0.95 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 188675 0 0 0 8569 421 0 0 25 0 1 0 21523029 552947712 99171 4294967295 134512640 135987407 3221224560 3221196160 134537477 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/7610/statm): 134997 99171 364 364 0 134633 0
[pid=7610] vsize: 539988
Current children cumulated CPU time (s) 89.9
Current children cumulated vsize (Kb) 539988

[startup+100.004 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 203283 0 0 0 9535 456 0 0 25 0 1 0 21523029 590827520 113529 4294967295 134512640 135987407 3221224560 3221211520 134878699 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7610/statm): 144245 113529 364 364 0 143881 0
[pid=7610] vsize: 576980
Current children cumulated CPU time (s) 99.91
Current children cumulated vsize (Kb) 576980

[startup+110.005 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 220022 0 0 0 10487 502 0 0 25 0 1 0 21523029 595693568 129982 4294967295 134512640 135987407 3221224560 3221209312 134887887 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7610/statm): 145433 129982 364 364 0 145069 0
[pid=7610] vsize: 581732
Current children cumulated CPU time (s) 109.89
Current children cumulated vsize (Kb) 581732

[startup+120.005 s]
Raw data (loadavg): 0.97 0.95 0.95 2/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) R 7609 7610 4060 0 -1 0 233413 0 0 0 11449 540 0 0 25 0 1 0 21523029 651567104 143152 4294967295 134512640 135987407 3221224560 3221179216 134856487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/7610/statm): 159074 143153 364 364 0 158710 0
[pid=7610] vsize: 636296
Current children cumulated CPU time (s) 119.89
Current children cumulated vsize (Kb) 636296



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+120.651 s]
Raw data (loadavg): 0.97 0.95 0.95 1/55 7610
Raw data (/proc/7610/stat): 7610 (pb2sat) T 7609 7610 4060 0 -1 0 237946 0 0 0 11504 549 0 0 25 0 1 0 21523029 943812608 147546 4294967295 134512640 135987407 3221224560 3221209180 135635874 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/7610/statm): 230423 147546 364 364 0 230059 0
[pid=7610] vsize: 921692
Current children cumulated CPU time (s) 120.53
Current children cumulated vsize (Kb) 921692

Sending SIGTERM to -7610
Sleeping 2 seconds
Sending SIGKILL to -7610
One traced child (pid=7610) 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): 122.957
CPU time (s): 120.892
CPU user time (s): 115.1
CPU system time (s): 5.79112
CPU usage (%): 98.3203
Max. virtual memory (cumulated for all children) (Kb): 921692

Verifier Data

ERROR: no interpretation found !