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).
  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

Namenormalized-opb/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-pilot87.opb
MD5SUM867c3fb6ec2e95bf03283295db1251ec
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 11677
Biggest coefficient in the objective function 1769666112389120
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 75483970843122814
Number of bits of the sum of numbers in the objective function 57
Biggest number in a constraint 536870912000000000
Number of bits of the biggest number in a constraint 59
Biggest sum of numbers in a constraint 1323519003456940521
Number of bits of the biggest sum of numbers61
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.02684
Number of variables113921
Total number of constraints3645
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 constraints3645
Minimum length of a constraint10
Maximum length of a constraint8647

Trace number 42335 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 05:44:15 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25551 boxname=wulflinc4 idbench=851 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  867c3fb6ec2e95bf03283295db1251ec  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-pilot87.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-pilot87.opb
IDLAUNCH: 25551
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        616600 kB
Buffers:         34240 kB
Cached:         361120 kB
SwapCached:        944 kB
Active:          78232 kB
Inactive:       319264 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        616348 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14888 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:46:09 (client local time) WITH STATUS 1 IN 112.917 SECONDS
stats: 25551 7 112.917 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.92 0.93 0.91 2/54 22093
Raw data (stat): 22093 (runsolver) R 22092 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 20 0 1 0 968329142 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.001 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 20075 0 0 0 957 42 0 0 25 0 1 0 968329142 62246912 12270 4294967295 134512640 135730672 3221224576 3220907752 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 15197 12270 301 301 0 14896 0
vsize: 60788
[startup+20.0006 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 50866 0 0 0 1892 107 0 0 25 0 1 0 968329142 167391232 29031 4294967295 134512640 135730672 3221224576 3220897420 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 40867 29031 301 301 0 40566 0
vsize: 163468
[startup+30.0009 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 81759 0 0 0 2829 170 0 0 25 0 1 0 968329142 247853056 50003 4294967295 134512640 135730672 3221224576 3220898320 134743035 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 60511 50004 301 301 0 60210 0
vsize: 242044
[startup+40.0018 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 107664 0 0 0 3776 223 0 0 25 0 1 0 968329142 338362368 63406 4294967295 134512640 135730672 3221224576 3220934640 134606749 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 82608 63409 301 301 0 82307 0
vsize: 330432
[startup+50.0025 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 128490 0 0 0 4736 264 0 0 25 0 1 0 968329142 368099328 83992 4294967295 134512640 135730672 3221224576 3220930848 134546591 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 89868 83994 301 301 0 89567 0
vsize: 359472
[startup+60.0027 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 190311 0 0 0 5610 390 0 0 25 0 1 0 968329142 595488768 101684 4294967295 134512640 135730672 3221224576 3220926800 134788395 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145383 101684 301 301 0 145082 0
vsize: 581532
[startup+70.003 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 202136 0 0 0 6588 412 0 0 25 0 1 0 968329142 629043200 113299 4294967295 134512640 135730672 3221224576 3220926224 134770605 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153575 113299 301 301 0 153274 0
vsize: 614300
[startup+80.0033 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 219164 0 0 0 7554 446 0 0 25 0 1 0 968329142 643911680 130091 4294967295 134512640 135730672 3221224576 3220956788 135292972 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157205 130092 301 301 0 156904 0
vsize: 628820
[startup+90.0035 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 240022 0 0 0 8509 491 0 0 25 0 1 0 968329142 673783808 150708 4294967295 134512640 135730672 3221224576 3220968448 134770715 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 164498 150708 301 301 0 164197 0
vsize: 657992
[startup+100.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 256521 0 0 0 9469 526 0 0 25 0 1 0 968329142 747634688 167016 4294967295 134512640 135730672 3221224576 3220963256 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 182528 167017 301 301 0 182227 0
vsize: 730112
[startup+110.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 263292 0 0 0 10438 554 0 0 25 0 1 0 968329142 397426688 96582 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97028 96582 301 301 0 96727 0
vsize: 388112
[startup+112.991 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 22093
Raw data (stat): 22093 (pb2sat-v2) R 22092 21152 21151 0 -1 0 263292 0 0 0 10438 554 0 0 25 0 1 0 968329142 397426688 96582 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97028 96582 301 301 0 96727 0
vsize: 0

Child status: 1
Real time (s): 112.991
CPU time (s): 112.917
CPU user time (s): 107.159
CPU system time (s): 5.75812
CPU usage (%): 99.9344
Max. virtual memory (Kb): 730112
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####