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-brandy.opb
MD5SUMebc4ba4a34e7e59de4a64f55746baa39
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 60
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 2147483646
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 10936060477440
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 138160507849056
Number of bits of the biggest sum of numbers47
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.430933
Number of variables7470
Total number of constraints182
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 constraints182
Minimum length of a constraint30
Maximum length of a constraint3540

Trace number 42299 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 05:18:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25517 boxname=wulflinc1 idbench=817 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ebc4ba4a34e7e59de4a64f55746baa39  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-brandy.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-brandy.opb
IDLAUNCH: 25517
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        762720 kB
Buffers:         34696 kB
Cached:         212924 kB
SwapCached:       1192 kB
Active:          78332 kB
Inactive:       171596 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        762468 kB
SwapTotal:     2097136 kB
SwapFree:      2094880 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16244 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:20:29 (client local time) WITH STATUS 1 IN 112.344 SECONDS
stats: 25517 7 112.344 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 0.96 0.92 2/55 13565
Raw data (stat): 13565 (runsolver) R 13564 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 911328213 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+10.0001 s]
Raw data (loadavg): 0.92 0.96 0.92 2/55 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 27610 0 0 0 939 59 0 0 25 0 1 0 911328213 82661376 16476 4294967295 134512640 135730672 3221224576 3221005664 134775077 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 20181 16476 301 301 0 19880 0
vsize: 80724
[startup+20.0009 s]
Raw data (loadavg): 0.93 0.96 0.92 2/55 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 55030 0 0 0 1888 111 0 0 25 0 1 0 911328213 167063552 32695 4294967295 134512640 135730672 3221224576 3221013884 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 40787 32695 301 301 0 40486 0
vsize: 163148
[startup+30.0007 s]
Raw data (loadavg): 0.94 0.96 0.92 2/55 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 94713 0 0 0 2811 187 0 0 25 0 1 0 911328213 294146048 50716 4294967295 134512640 135730672 3221224576 3221021296 134786278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 71813 50716 301 301 0 71512 0
vsize: 287252
[startup+40.0005 s]
Raw data (loadavg): 0.95 0.96 0.92 2/55 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 107975 0 0 0 3787 212 0 0 25 0 1 0 911328213 333918208 63768 4294967295 134512640 135730672 3221224576 3221017476 135282196 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81523 63768 301 301 0 81222 0
vsize: 326092
[startup+50.0003 s]
Raw data (loadavg): 0.96 0.97 0.92 2/55 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 127400 0 0 0 4746 253 0 0 25 0 1 0 911328213 361897984 82967 4294967295 134512640 135730672 3221224576 3221029784 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 88354 82967 301 301 0 88053 0
vsize: 353416
[startup+60.0004 s]
Raw data (loadavg): 0.96 0.97 0.92 2/55 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 188717 0 0 0 5624 375 0 0 25 0 1 0 911328213 589017088 100163 4294967295 134512640 135730672 3221224576 3221030248 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 143803 100164 301 301 0 143502 0
vsize: 575212
[startup+70.0008 s]
Raw data (loadavg): 0.97 0.97 0.92 2/55 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 199276 0 0 0 6601 398 0 0 25 0 1 0 911328213 622571520 110534 4294967295 134512640 135730672 3221224576 3221034144 134548394 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 151995 110535 301 301 0 151694 0
vsize: 607980
[startup+80.0006 s]
Raw data (loadavg): 0.97 0.97 0.92 2/55 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 214091 0 0 0 7573 427 0 0 25 0 1 0 911328213 632438784 125128 4294967295 134512640 135730672 3221224576 3221035248 134546591 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154404 125128 301 301 0 154103 0
vsize: 617616
[startup+90.0004 s]
Raw data (loadavg): 0.98 0.97 0.92 2/55 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 233439 0 0 0 8535 465 0 0 25 0 1 0 911328213 660152320 144251 4294967295 134512640 135730672 3221224576 3221038512 134546366 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161170 144252 301 301 0 160869 0
vsize: 644680
[startup+100 s]
Raw data (loadavg): 0.98 0.97 0.92 2/55 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 248842 0 0 0 9506 494 0 0 25 0 1 0 911328213 732516352 159476 4294967295 134512640 135730672 3221224576 3221039868 135301637 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 178837 159477 301 301 0 178536 0
vsize: 715348
[startup+110 s]
Raw data (loadavg): 0.98 0.97 0.92 2/55 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 262237 0 0 0 10479 520 0 0 25 0 1 0 911328213 752623616 172716 4294967295 134512640 135730672 3221224576 3221223040 134736337 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183746 172716 301 301 0 183445 0
vsize: 734984
[startup+112.344 s]
Raw data (loadavg): 0.98 0.97 0.92 1/54 13565
Raw data (stat): 13565 (pb2sat-v2) R 13564 8378 8377 0 -1 0 262237 0 0 0 10479 520 0 0 25 0 1 0 911328213 752623616 172716 4294967295 134512640 135730672 3221224576 3221223040 134736337 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183746 172716 301 301 0 183445 0
vsize: 0

Child status: 1
Real time (s): 112.344
CPU time (s): 112.344
CPU user time (s): 106.78
CPU system time (s): 5.56415
CPU usage (%): 100
Max. virtual memory (Kb): 734984
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####