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/MIPLIB/miplib2003/normalized-mps-v2-20-10-fixnet6.opb
MD5SUM86988185dc943ce56e28aece7fb5e3af
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 48441119
Optimality of the best value was proved NO
Number of terms in the objective function 11714
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 513431911800
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 1073741824
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 513431911800
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1250.58
Number of variables14036
Total number of constraints978
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)378
Number of constraints which are nor clauses,nor cardinality constraints600
Minimum length of a constraint1
Maximum length of a constraint1523

Trace number 35190 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-05-28 12:23:22 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24494 boxname=wulflinc10 idbench=966 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  86988185dc943ce56e28aece7fb5e3af  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-fixnet6.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-fixnet6.opb
IDLAUNCH: 24494
/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:        820416 kB
Buffers:         35052 kB
Cached:         157848 kB
SwapCached:         84 kB
Active:          75260 kB
Inactive:       120220 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        820164 kB
SwapTotal:     2097136 kB
SwapFree:      2096728 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5880 kB
Slab:            13216 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:25:12 (client local time) WITH STATUS 1 IN 109.904 SECONDS
stats: 24494 7 109.904 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): 0.97 0.95 0.91 2/54 22968
Raw data (stat): 22968 (runsolver) R 22967 15547 15546 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806565947 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+10.0001 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 22968
Raw data (stat): 22968 (pb2sat) R 22967 15547 15546 0 -1 0 26628 0 0 0 941 57 0 0 25 0 1 0 806565947 89190400 15537 4294967295 134512640 135726644 3221224576 3217061404 134634272 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21775 15538 300 300 0 21475 0
vsize: 87100
[startup+20.0009 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22968
Raw data (stat): 22968 (pb2sat) R 22967 15547 15546 0 -1 0 55577 0 0 0 1886 113 0 0 25 0 1 0 806565947 175722496 33524 4294967295 134512640 135726644 3221224576 3217019504 134810251 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42901 33525 300 300 0 42601 0
vsize: 171604
[startup+30.0011 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22968
Raw data (stat): 22968 (pb2sat) R 22967 15547 15546 0 -1 0 97073 0 0 0 2800 198 0 0 25 0 1 0 806565947 303067136 53337 4294967295 134512640 135726644 3221224576 3217025968 135280580 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73991 53337 300 300 0 73691 0
vsize: 295964
[startup+40.0007 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22968
Raw data (stat): 22968 (pb2sat) R 22967 15547 15546 0 -1 0 112906 0 0 0 3769 230 0 0 25 0 1 0 806565947 347975680 68937 4294967295 134512640 135726644 3221224576 3217165628 135298010 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84955 68937 300 300 0 84655 0
vsize: 339820
[startup+50.0016 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22968
Raw data (stat): 22968 (pb2sat) R 22967 15547 15546 0 -1 0 136523 0 0 0 4721 279 0 0 25 0 1 0 806565947 525189120 92204 4294967295 134512640 135726644 3221224576 3217208760 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 128220 92207 300 300 0 127920 0
vsize: 512880
[startup+60.0008 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 22968
Raw data (stat): 22968 (pb2sat) R 22967 15547 15546 0 -1 0 194770 0 0 0 5603 396 0 0 25 0 1 0 806565947 598880256 107439 4294967295 134512640 135726644 3221224576 3217284864 134739568 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146211 107440 300 300 0 145911 0
vsize: 584844
[startup+70.0014 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 22968
Raw data (stat): 22968 (pb2sat) R 22967 15547 15546 0 -1 0 207008 0 0 0 6578 422 0 0 25 0 1 0 806565947 632434688 119456 4294967295 134512640 135726644 3221224576 3217689292 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154403 119457 300 300 0 154103 0
vsize: 617612
[startup+80.0023 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 22968
Raw data (stat): 22968 (pb2sat) R 22967 15547 15546 0 -1 0 226810 0 0 0 7536 463 0 0 25 0 1 0 806565947 658386944 139016 4294967295 134512640 135726644 3221224576 3218488928 134603652 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160739 139016 300 300 0 160439 0
vsize: 642956
[startup+90.0015 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 22968
Raw data (stat): 22968 (pb2sat) R 22967 15547 15546 0 -1 0 243690 0 0 0 8497 503 0 0 25 0 1 0 806565947 733048832 155700 4294967295 134512640 135726644 3221224576 3218968140 135280688 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 178967 155702 300 300 0 178667 0
vsize: 715868
[startup+100.002 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 22968
Raw data (stat): 22968 (pb2sat) R 22967 15547 15546 0 -1 0 264521 0 0 0 9454 546 0 0 25 0 1 0 806565947 763461632 176287 4294967295 134512640 135726644 3221224576 3217815752 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186392 176288 300 300 0 186092 0
vsize: 745568
[startup+109.901 s]
Raw data (loadavg): 0.99 0.96 0.91 1/53 22968
Raw data (stat): 22968 (pb2sat) R 22967 15547 15546 0 -1 0 264521 0 0 0 9454 546 0 0 25 0 1 0 806565947 763461632 176287 4294967295 134512640 135726644 3221224576 3217815752 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186392 176288 300 300 0 186092 0
vsize: 0

Child status: 1
Real time (s): 109.9
CPU time (s): 109.904
CPU user time (s): 104.072
CPU system time (s): 5.83211
CPU usage (%): 100.004
Max. virtual memory (Kb): 745568
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####