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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-lotfi.opb
MD5SUM69367ad5ee917e4a74e95e8f089c09d8
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 160
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 8388600
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 5242880000000000
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 39992649862466400
Number of bits of the biggest sum of numbers56
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.85087
Number of variables6160
Total number of constraints153
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 constraints153
Minimum length of a constraint20
Maximum length of a constraint2660

Trace number 35452 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc20 THE 2005-05-28 13:14:46 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24756 boxname=wulflinc20 idbench=1228 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  69367ad5ee917e4a74e95e8f089c09d8  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-lotfi.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-13-7-lotfi.opb
IDLAUNCH: 24756
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.215
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	: 3
cpu MHz		: 451.215
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:        725160 kB
Buffers:         32596 kB
Cached:         253448 kB
SwapCached:        644 kB
Active:          21232 kB
Inactive:       266956 kB
HighTotal:      131008 kB
HighFree:         1932 kB
LowTotal:       903652 kB
LowFree:        723228 kB
SwapTotal:     2097892 kB
SwapFree:      2096312 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            15712 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:16:28 (client local time) WITH STATUS 1 IN 101.172 SECONDS
stats: 24756 7 101.172 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): 0.89 0.93 0.90 2/54 11844
Raw data (stat): 11844 (runsolver) R 11843 25399 25398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865081801 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+9.99942 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 11844
Raw data (stat): 11844 (pb2sat) R 11843 25399 25398 0 -1 0 30134 0 0 0 931 67 0 0 25 0 1 0 865081801 88895488 19203 4294967295 134512640 135726644 3221224576 3220250236 134604415 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21703 19204 300 300 0 21403 0
vsize: 86812
[startup+20.0001 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 11844
Raw data (stat): 11844 (pb2sat) R 11843 25399 25398 0 -1 0 59847 0 0 0 1872 126 0 0 25 0 1 0 865081801 176988160 37943 4294967295 134512640 135726644 3221224576 3220231896 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43210 37944 300 300 0 42910 0
vsize: 172840
[startup+30.0081 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 11844
Raw data (stat): 11844 (pb2sat) R 11843 25399 25398 0 -1 0 98702 0 0 0 2795 205 0 0 25 0 1 0 865081801 328900608 54612 4294967295 134512640 135726644 3221224576 3220213096 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 80298 54612 300 300 0 79998 0
vsize: 321192
[startup+40.0085 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 11844
Raw data (stat): 11844 (pb2sat) R 11843 25399 25398 0 -1 0 118739 0 0 0 3752 247 0 0 25 0 1 0 865081801 351068160 74391 4294967295 134512640 135726644 3221224576 3220195436 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85710 74391 300 300 0 85410 0
vsize: 342840
[startup+50.0082 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 11844
Raw data (stat): 11844 (pb2sat) R 11843 25399 25398 0 -1 0 162449 0 0 0 4672 328 0 0 25 0 1 0 865081801 492527616 98499 4294967295 134512640 135726644 3221224576 3220224140 135298010 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120246 98500 300 300 0 119946 0
vsize: 480984
[startup+60.0087 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 11844
Raw data (stat): 11844 (pb2sat) R 11843 25399 25398 0 -1 0 197431 0 0 0 5596 404 0 0 25 0 1 0 865081801 626745344 108722 4294967295 134512640 135726644 3221224576 3220267424 134782652 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153014 108723 300 300 0 152714 0
vsize: 612056
[startup+70.0087 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 11844
Raw data (stat): 11844 (pb2sat) R 11843 25399 25398 0 -1 0 213092 0 0 0 6568 433 0 0 25 0 1 0 865081801 632152064 124130 4294967295 134512640 135726644 3221224576 3220203712 135105735 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154334 124130 300 300 0 154034 0
vsize: 617336
[startup+80.0084 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 11844
Raw data (stat): 11844 (pb2sat) R 11843 25399 25398 0 -1 0 234288 0 0 0 7529 471 0 0 25 0 1 0 865081801 662159360 145083 4294967295 134512640 135726644 3221224576 3220303008 134782477 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161660 145083 300 300 0 161360 0
vsize: 646640
[startup+90.0085 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 11844
Raw data (stat): 11844 (pb2sat) R 11843 25399 25398 0 -1 0 251761 0 0 0 8496 505 0 0 25 0 1 0 865081801 737226752 162355 4294967295 134512640 135726644 3221224576 3220361808 134767052 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179987 162355 300 300 0 179687 0
vsize: 719948
[startup+100.008 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11844
Raw data (stat): 11844 (pb2sat) R 11843 25399 25398 0 -1 0 264176 0 0 0 9451 549 0 0 25 0 1 0 865081801 395259904 96061 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96499 96061 300 300 0 96199 0
vsize: 385996
[startup+101.172 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 11844
Raw data (stat): 11844 (pb2sat) R 11843 25399 25398 0 -1 0 264176 0 0 0 9451 549 0 0 25 0 1 0 865081801 395259904 96061 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96499 96061 300 300 0 96199 0
vsize: 0

Child status: 1
Real time (s): 101.172
CPU time (s): 101.172
CPU user time (s): 95.4715
CPU system time (s): 5.70013
CPU usage (%): 99.9999
Max. virtual memory (Kb): 719948
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####