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-khb05250.opb
MD5SUM16cce9479fbccbb902b090a1fce13788
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 25004
Biggest coefficient in the objective function 6104809472
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 5527422840150
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 6104809472
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 5527422840150
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.221965
Number of variables25544
Total number of constraints126
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)24
Number of constraints which are nor clauses,nor cardinality constraints102
Minimum length of a constraint1
Maximum length of a constraint1020

Trace number 35531 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc11 THE 2005-05-28 13:21:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24827 boxname=wulflinc11 idbench=1299 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  16cce9479fbccbb902b090a1fce13788  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-khb05250.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-13-7-khb05250.opb
IDLAUNCH: 24827
/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:        899792 kB
Buffers:         35140 kB
Cached:          77492 kB
SwapCached:        860 kB
Active:          51164 kB
Inactive:        63652 kB
HighTotal:      131008 kB
HighFree:        50456 kB
LowTotal:       903652 kB
LowFree:        849336 kB
SwapTotal:     2097136 kB
SwapFree:      2095396 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5072 kB
Slab:            14508 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:23:31 (client local time) WITH STATUS 1 IN 112.365 SECONDS
stats: 24827 7 112.365 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): 1.01 0.99 0.92 2/54 3572
Raw data (stat): 3572 (runsolver) R 3571 25830 25829 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806897791 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+10.001 s]
Raw data (loadavg): 1.01 0.99 0.92 2/54 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 2275 0 0 0 993 5 0 0 25 0 1 0 806897791 8364032 1599 4294967295 134512640 135726644 3221224576 3221221664 134556173 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2042 1599 300 300 0 1742 0
vsize: 8168
[startup+20.0018 s]
Raw data (loadavg): 1.01 0.99 0.92 2/54 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 29709 0 0 0 1929 69 0 0 25 0 1 0 806897791 92876800 18572 4294967295 134512640 135726644 3221224576 3211335328 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22675 18572 300 300 0 22375 0
vsize: 90700
[startup+30.0024 s]
Raw data (loadavg): 1.01 0.99 0.92 2/54 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 59014 0 0 0 2865 133 0 0 25 0 1 0 806897791 189927424 36638 4294967295 134512640 135726644 3221224576 3211342392 135280405 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 46369 36638 300 300 0 46069 0
vsize: 185476
[startup+40.0024 s]
Raw data (loadavg): 1.01 0.99 0.92 2/54 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 85720 0 0 0 3811 187 0 0 25 0 1 0 806897791 254709760 53394 4294967295 134512640 135726644 3221224576 3211623640 134771401 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 62185 53394 300 300 0 61885 0
vsize: 248740
[startup+50.0033 s]
Raw data (loadavg): 1.00 0.99 0.92 2/54 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 114979 0 0 0 4751 247 0 0 25 0 1 0 806897791 363466752 70132 4294967295 134512640 135726644 3221224576 3211902396 135297992 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 88737 70132 300 300 0 88437 0
vsize: 354948
[startup+60.0044 s]
Raw data (loadavg): 1.00 0.99 0.92 2/54 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 154528 0 0 0 5678 321 0 0 25 0 1 0 806897791 492220416 90073 4294967295 134512640 135726644 3221224576 3211223596 135297992 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120171 90073 300 300 0 119871 0
vsize: 480684
[startup+70.0048 s]
Raw data (loadavg): 1.00 0.99 0.92 2/54 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 167547 0 0 0 6649 350 0 0 25 0 1 0 806897791 492220416 102823 4294967295 134512640 135726644 3221224576 3211319396 135278564 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120171 102823 300 300 0 119871 0
vsize: 480684
[startup+80.0045 s]
Raw data (loadavg): 1.00 0.99 0.92 2/54 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 209034 0 0 0 7565 434 0 0 25 0 1 0 806897791 615321600 119502 4294967295 134512640 135726644 3221224576 3211256096 134557593 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 150225 119502 300 300 0 149925 0
vsize: 600900
[startup+90.0051 s]
Raw data (loadavg): 1.00 0.99 0.92 2/54 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 227214 0 0 0 8525 473 0 0 25 0 1 0 806897791 677613568 137459 4294967295 134512640 135726644 3221224576 3211436492 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 165433 137459 300 300 0 165133 0
vsize: 661732
[startup+100.005 s]
Raw data (loadavg): 1.00 0.99 0.92 2/54 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 249150 0 0 0 9481 518 0 0 25 0 1 0 806897791 713211904 159134 4294967295 134512640 135726644 3221224576 3211390952 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 174124 159134 300 300 0 173824 0
vsize: 696496
[startup+110.006 s]
Raw data (loadavg): 1.00 0.99 0.92 2/54 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 250577 0 0 0 10466 533 0 0 25 0 1 0 806897791 405504000 98560 4294967295 134512640 135726644 3221224576 3221222764 135277617 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 99000 98560 300 300 0 98700 0
vsize: 396000
[startup+112.375 s]
Raw data (loadavg): 1.00 0.99 0.92 1/53 3572
Raw data (stat): 3572 (pb2sat) R 3571 25830 25829 0 -1 0 250577 0 0 0 10466 533 0 0 25 0 1 0 806897791 405504000 98560 4294967295 134512640 135726644 3221224576 3221222764 135277617 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 99000 98560 300 300 0 98700 0
vsize: 0

Child status: 1
Real time (s): 112.375
CPU time (s): 112.365
CPU user time (s): 106.826
CPU system time (s): 5.53916
CPU usage (%): 99.9914
Max. virtual memory (Kb): 696496
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####