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-finnis.opb
MD5SUM60e38c2930b2acad52009e4142c58d78
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 11049
Biggest coefficient in the objective function 2163216220579430400
Number of bits for the biggest coefficient in the objective function 61
Sum of the numbers in the objective function 28289850101781610496
Number of bits of the sum of numbers in the objective function 65
Biggest number in a constraint 2163216220579430400
Number of bits of the biggest number in a constraint 61
Biggest sum of numbers in a constraint 28289850101781610496
Number of bits of the biggest sum of numbers65
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.140978
Number of variables16486
Total number of constraints533
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 constraints533
Minimum length of a constraint10
Maximum length of a constraint1102

Trace number 42311 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 05:26:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25529 boxname=wulflinc2 idbench=829 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  60e38c2930b2acad52009e4142c58d78  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-finnis.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-finnis.opb
IDLAUNCH: 25529
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        781004 kB
Buffers:         34608 kB
Cached:         193164 kB
SwapCached:       4448 kB
Active:          62872 kB
Inactive:       169984 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        780752 kB
SwapTotal:     2097136 kB
SwapFree:      2091696 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            15072 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:28:33 (client local time) WITH STATUS 1 IN 108.857 SECONDS
stats: 25529 7 108.857 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 4892
Raw data (stat): 4892 (runsolver) R 4891 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968238068 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+10.0016 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 4892
Raw data (stat): 4892 (pb2sat-v2) R 4891 31399 31398 0 -1 0 25297 0 0 0 946 53 0 0 25 0 1 0 968238068 76185600 14164 4294967295 134512640 135730672 3221224576 3221127564 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 18600 14164 301 301 0 18299 0
vsize: 74400
[startup+20.0019 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 4892
Raw data (stat): 4892 (pb2sat-v2) R 4891 31399 31398 0 -1 0 53195 0 0 0 1896 103 0 0 25 0 1 0 968238068 170287104 30843 4294967295 134512640 135730672 3221224576 3221125872 134551811 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 41574 30843 301 301 0 41273 0
vsize: 166296
[startup+30.0016 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 4892
Raw data (stat): 4892 (pb2sat-v2) R 4891 31399 31398 0 -1 0 81905 0 0 0 2846 154 0 0 25 0 1 0 968238068 243949568 49588 4294967295 134512640 135730672 3221224576 3221123852 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 59558 49588 301 301 0 59257 0
vsize: 238232
[startup+40.0013 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 4892
Raw data (stat): 4892 (pb2sat-v2) R 4891 31399 31398 0 -1 0 108918 0 0 0 3792 207 0 0 25 0 1 0 968238068 341622784 64097 4294967295 134512640 135730672 3221224576 3221130008 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83404 64097 301 301 0 83103 0
vsize: 333616
[startup+50.002 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 4892
Raw data (stat): 4892 (pb2sat-v2) R 4891 31399 31398 0 -1 0 138784 0 0 0 4740 259 0 0 25 0 1 0 968238068 530038784 93334 4294967295 134512640 135730672 3221224576 3221126768 134775411 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 129404 93334 301 301 0 129103 0
vsize: 517616
[startup+60.0031 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 4892
Raw data (stat): 4892 (pb2sat-v2) R 4891 31399 31398 0 -1 0 164923 0 0 0 5692 308 0 0 25 0 1 0 968238068 485687296 100061 4294967295 134512640 135730672 3221224576 3221126672 134546473 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 118576 100061 301 301 0 118275 0
vsize: 474304
[startup+70.0035 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 4892
Raw data (stat): 4892 (pb2sat-v2) R 4891 31399 31398 0 -1 0 200096 0 0 0 6626 375 0 0 25 0 1 0 968238068 620310528 110460 4294967295 134512640 135730672 3221224576 3221125152 134783994 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 151443 110460 301 301 0 151142 0
vsize: 605772
[startup+80.0041 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 4892
Raw data (stat): 4892 (pb2sat-v2) R 4891 31399 31398 0 -1 0 217908 0 0 0 7594 406 0 0 25 0 1 0 968238068 646803456 128058 4294967295 134512640 135730672 3221224576 3221127192 135282780 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157911 128058 301 301 0 157610 0
vsize: 631644
[startup+90.0042 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 4892
Raw data (stat): 4892 (pb2sat-v2) R 4891 31399 31398 0 -1 0 237867 0 0 0 8553 447 0 0 25 0 1 0 968238068 676864000 147771 4294967295 134512640 135730672 3221224576 3221125280 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 165250 147771 301 301 0 164949 0
vsize: 661000
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 4892
Raw data (stat): 4892 (pb2sat-v2) R 4891 31399 31398 0 -1 0 255153 0 0 0 9523 478 0 0 25 0 1 0 968238068 703983616 164806 4294967295 134512640 135730672 3221224576 3221223028 134540222 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171871 164806 301 301 0 171570 0
vsize: 687484
[startup+108.847 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 4892
Raw data (stat): 4892 (pb2sat-v2) R 4891 31399 31398 0 -1 0 255153 0 0 0 9523 478 0 0 25 0 1 0 968238068 703983616 164806 4294967295 134512640 135730672 3221224576 3221223028 134540222 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171871 164806 301 301 0 171570 0
vsize: 0

Child status: 1
Real time (s): 108.847
CPU time (s): 108.857
CPU user time (s): 103.74
CPU system time (s): 5.11722
CPU usage (%): 100.01
Max. virtual memory (Kb): 687484
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####