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-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-air01.opb
MD5SUM90db1995bd949fc5ac74143a523f3bcf
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3398
Optimality of the best value was proved NO
Number of terms in the objective function 771
Biggest coefficient in the objective function 3698
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 1192753
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 3698
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 1192753
Number of bits of the biggest sum of numbers21
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.02884
Number of variables771
Total number of constraints794
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)794
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint438

Trace number 35507 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc11 THE 2005-05-28 13:19:46 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24806 boxname=wulflinc11 idbench=1278 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  90db1995bd949fc5ac74143a523f3bcf  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-air01.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-air01.opb
IDLAUNCH: 24806
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.028
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		: 451.028
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:        904536 kB
Buffers:         35124 kB
Cached:          73224 kB
SwapCached:        860 kB
Active:          49072 kB
Inactive:        61432 kB
HighTotal:      131008 kB
HighFree:        54712 kB
LowTotal:       903652 kB
LowFree:        849824 kB
SwapTotal:     2097136 kB
SwapFree:      2095396 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5072 kB
Slab:            13948 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:21:30 (client local time) WITH STATUS 1 IN 103.095 SECONDS
stats: 24806 7 103.095 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): 0.91 0.95 0.90 1/54 3479
Raw data (stat): 3479 (runsolver) R 3478 25830 25829 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806886621 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0013 s]
Raw data (loadavg): 0.92 0.96 0.91 2/54 3479
Raw data (stat): 3479 (pb2sat) R 3478 25830 25829 0 -1 0 30336 0 0 0 933 66 0 0 25 0 1 0 806886621 91856896 19175 4294967295 134512640 135726644 3221224576 3220946632 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22426 19176 300 300 0 22126 0
vsize: 89704
[startup+20.003 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 3479
Raw data (stat): 3479 (pb2sat) R 3478 25830 25829 0 -1 0 60188 0 0 0 1867 132 0 0 25 0 1 0 806886621 181334016 37784 4294967295 134512640 135726644 3221224576 3220944952 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 44271 37784 300 300 0 43971 0
vsize: 177084
[startup+30.0034 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 3479
Raw data (stat): 3479 (pb2sat) R 3478 25830 25829 0 -1 0 98304 0 0 0 2797 202 0 0 25 0 1 0 806886621 294825984 53689 4294967295 134512640 135726644 3221224576 3221072512 134554608 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 71979 53689 300 300 0 71679 0
vsize: 287916
[startup+40.0031 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 3479
Raw data (stat): 3479 (pb2sat) R 3478 25830 25829 0 -1 0 117859 0 0 0 3753 246 0 0 25 0 1 0 806886621 356499456 73003 4294967295 134512640 135726644 3221224576 3220963832 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 87036 73004 300 300 0 86736 0
vsize: 348144
[startup+50.004 s]
Raw data (loadavg): 1.04 0.98 0.91 2/54 3479
Raw data (stat): 3479 (pb2sat) R 3478 25830 25829 0 -1 0 158233 0 0 0 4679 321 0 0 25 0 1 0 806886621 489185280 93789 4294967295 134512640 135726644 3221224576 3221008864 134767234 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 119430 93789 300 300 0 119130 0
vsize: 477720
[startup+60.0037 s]
Raw data (loadavg): 1.11 0.99 0.92 2/54 3479
Raw data (stat): 3479 (pb2sat) R 3478 25830 25829 0 -1 0 193562 0 0 0 5607 392 0 0 25 0 1 0 806886621 589848576 104345 4294967295 134512640 135726644 3221224576 3221051564 135279149 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144006 104345 300 300 0 143706 0
vsize: 576024
[startup+70.0045 s]
Raw data (loadavg): 1.09 0.99 0.92 2/54 3479
Raw data (stat): 3479 (pb2sat) R 3478 25830 25829 0 -1 0 206487 0 0 0 6583 417 0 0 25 0 1 0 806886621 630566912 117074 4294967295 134512640 135726644 3221224576 3220932880 134782666 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153947 117074 300 300 0 153647 0
vsize: 615788
[startup+80.0056 s]
Raw data (loadavg): 1.16 1.01 0.93 2/54 3479
Raw data (stat): 3479 (pb2sat) R 3478 25830 25829 0 -1 0 227619 0 0 0 7539 462 0 0 25 0 1 0 806886621 662212608 137953 4294967295 134512640 135726644 3221224576 3221066952 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161673 137955 300 300 0 161373 0
vsize: 646692
[startup+90.0051 s]
Raw data (loadavg): 1.13 1.01 0.93 2/54 3479
Raw data (stat): 3479 (pb2sat) R 3478 25830 25829 0 -1 0 247887 0 0 0 8495 506 0 0 25 0 1 0 806886621 692637696 157988 4294967295 134512640 135726644 3221224576 3221174952 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169101 157988 300 300 0 168801 0
vsize: 676404
[startup+100.006 s]
Raw data (loadavg): 1.11 1.01 0.93 2/54 3479
Raw data (stat): 3479 (pb2sat) R 3478 25830 25829 0 -1 0 258966 0 0 0 9473 528 0 0 25 0 1 0 806886621 760844288 168933 4294967295 134512640 135726644 3221224576 3221222896 135279129 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185753 168933 300 300 0 185453 0
vsize: 743012
[startup+103.09 s]
Raw data (loadavg): 1.10 1.01 0.93 1/53 3479
Raw data (stat): 3479 (pb2sat) R 3478 25830 25829 0 -1 0 258966 0 0 0 9473 528 0 0 25 0 1 0 806886621 760844288 168933 4294967295 134512640 135726644 3221224576 3221222896 135279129 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185753 168933 300 300 0 185453 0
vsize: 0

Child status: 1
Real time (s): 103.09
CPU time (s): 103.095
CPU user time (s): 97.4682
CPU system time (s): 5.62714
CPU usage (%): 100.005
Max. virtual memory (Kb): 743012
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####