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-grow7.opb
MD5SUM40451c04b9f854eea430dc02cae12dee
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 623
Biggest coefficient in the objective function 3758096384
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 68719476658
Number of bits of the sum of numbers in the objective function 36
Biggest number in a constraint 878188741787648
Number of bits of the biggest number in a constraint 50
Biggest sum of numbers in a constraint 4550739094651140
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1248.58
Number of variables7994
Total number of constraints420
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 constraints420
Minimum length of a constraint22
Maximum length of a constraint491

Trace number 42321 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 05:36:51 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25541 boxname=wulflinc1 idbench=841 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  40451c04b9f854eea430dc02cae12dee  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-grow7.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-grow7.opb
IDLAUNCH: 25541
/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:        709168 kB
Buffers:         34252 kB
Cached:         266952 kB
SwapCached:       1192 kB
Active:          56668 kB
Inactive:       246832 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        708916 kB
SwapTotal:     2097136 kB
SwapFree:      2094880 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16152 kB
Committed_AS:    92708 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:38:53 (client local time) WITH STATUS 1 IN 122.548 SECONDS
stats: 25541 7 122.548 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): 0.84 0.94 0.90 2/55 14216
Raw data (stat): 14216 (runsolver) R 14215 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 911437618 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): 0.86 0.94 0.90 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 27391 0 0 0 940 59 0 0 25 0 1 0 911437618 87138304 16364 4294967295 134512640 135730672 3221224576 3221120912 135109353 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21274 16364 301 301 0 20973 0
vsize: 85096
[startup+20.0009 s]
Raw data (loadavg): 0.88 0.94 0.91 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 54000 0 0 0 1888 112 0 0 25 0 1 0 911437618 171151360 31776 4294967295 134512640 135730672 3221224576 3221122332 135301605 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 41785 31776 301 301 0 41484 0
vsize: 167140
[startup+30.0017 s]
Raw data (loadavg): 0.90 0.94 0.91 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 81824 0 0 0 2838 161 0 0 25 0 1 0 911437618 245624832 49700 4294967295 134512640 135730672 3221224576 3221123328 135109362 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 59967 49700 301 301 0 59666 0
vsize: 239868
[startup+40.0015 s]
Raw data (loadavg): 0.91 0.94 0.91 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 105975 0 0 0 3789 210 0 0 25 0 1 0 911437618 336863232 61374 4294967295 134512640 135730672 3221224576 3221123836 135301580 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 82242 61374 301 301 0 81941 0
vsize: 328968
[startup+50.0023 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 124437 0 0 0 4755 245 0 0 25 0 1 0 911437618 364941312 79618 4294967295 134512640 135730672 3221224576 3221123840 134546403 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 89097 79618 301 301 0 88796 0
vsize: 356388
[startup+60.0021 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 162214 0 0 0 5688 312 0 0 25 0 1 0 911437618 491327488 97828 4294967295 134512640 135730672 3221224576 3221126176 134770238 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 119953 97828 301 301 0 119652 0
vsize: 479812
[startup+70.0034 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 196313 0 0 0 6613 386 0 0 25 0 1 0 911437618 591990784 107173 4294967295 134512640 135730672 3221224576 3221127044 135292595 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144529 107173 301 301 0 144228 0
vsize: 578116
[startup+80.0037 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 207471 0 0 0 7591 410 0 0 25 0 1 0 911437618 631615488 118150 4294967295 134512640 135730672 3221224576 3221124784 134546477 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154203 118150 301 301 0 153902 0
vsize: 616812
[startup+90.0035 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 225197 0 0 0 8555 445 0 0 25 0 1 0 911437618 658526208 135667 4294967295 134512640 135730672 3221224576 3221125712 134546371 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 160773 135667 301 301 0 160472 0
vsize: 643092
[startup+100.004 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 242776 0 0 0 9524 476 0 0 25 0 1 0 911437618 685248512 153040 4294967295 134512640 135730672 3221224576 3221125532 135291230 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 167297 153040 301 301 0 166996 0
vsize: 669188
[startup+110.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 256534 0 0 0 10496 505 0 0 25 0 1 0 911437618 756142080 166635 4294967295 134512640 135730672 3221224576 3221124880 134607982 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184605 166635 301 301 0 184304 0
vsize: 738420
[startup+120.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 259656 0 0 0 11477 524 0 0 25 0 1 0 911437618 400928768 97298 4294967295 134512640 135730672 3221224576 3221222764 135281221 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97883 97298 301 301 0 97582 0
vsize: 391532
[startup+122.537 s]
Raw data (loadavg): 0.98 0.95 0.91 1/54 14216
Raw data (stat): 14216 (pb2sat-v2) R 14215 8378 8377 0 -1 0 259656 0 0 0 11477 524 0 0 25 0 1 0 911437618 400928768 97298 4294967295 134512640 135730672 3221224576 3221222764 135281221 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97883 97298 301 301 0 97582 0
vsize: 0

Child status: 1
Real time (s): 122.537
CPU time (s): 122.548
CPU user time (s): 117.092
CPU system time (s): 5.45617
CPU usage (%): 100.01
Max. virtual memory (Kb): 738420
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####