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-israel.opb
MD5SUM326c72a25c8066513471046cf298330a
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -2147483648
Optimality of the best value was proved NO
Number of terms in the objective function 1780
Biggest coefficient in the objective function 788267008000
Number of bits for the biggest coefficient in the objective function 40
Sum of the numbers in the objective function 9669174315900
Number of bits of the sum of numbers in the objective function 44
Biggest number in a constraint 788267008000
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 9669174315900
Number of bits of the biggest sum of numbers44
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1218.06
Number of variables2840
Total number of constraints174
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 constraints174
Minimum length of a constraint20
Maximum length of a constraint2360

Trace number 42708 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 14:02:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25926 boxname=wulflinc2 idbench=1226 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  326c72a25c8066513471046cf298330a  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-israel.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-israel.opb
IDLAUNCH: 25926
/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:        709168 kB
Buffers:          9160 kB
Cached:         293992 kB
SwapCached:       1420 kB
Active:          27656 kB
Inactive:       277544 kB
HighTotal:      131008 kB
HighFree:         1540 kB
LowTotal:       903652 kB
LowFree:        707628 kB
SwapTotal:     2097136 kB
SwapFree:      2094720 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            14668 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:03:59 (client local time) WITH STATUS 1 IN 106.632 SECONDS
stats: 25926 7 106.632 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): 0.92 0.95 0.90 2/54 11255
Raw data (stat): 11255 (runsolver) R 11254 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971331261 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+10.0002 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 11255
Raw data (stat): 11255 (pb2sat-v2) R 11254 31399 31398 0 -1 0 26648 0 0 0 945 53 0 0 25 0 1 0 971331261 81580032 15621 4294967295 134512640 135730672 3221224576 3221195344 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19917 15621 301 301 0 19616 0
vsize: 79668
[startup+20.0015 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 11255
Raw data (stat): 11255 (pb2sat-v2) R 11254 31399 31398 0 -1 0 51085 0 0 0 1895 103 0 0 25 0 1 0 971331261 153858048 29100 4294967295 134512640 135730672 3221224576 3221196700 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37563 29100 301 301 0 37262 0
vsize: 150252
[startup+30.0017 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 11255
Raw data (stat): 11255 (pb2sat-v2) R 11254 31399 31398 0 -1 0 88450 0 0 0 2819 178 0 0 25 0 1 0 971331261 264806400 44271 4294967295 134512640 135730672 3221224576 3221202736 135301585 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 64650 44271 301 301 0 64349 0
vsize: 258600
[startup+40.0024 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 11255
Raw data (stat): 11255 (pb2sat-v2) R 11254 31399 31398 0 -1 0 100430 0 0 0 3791 206 0 0 25 0 1 0 971331261 301064192 56035 4294967295 134512640 135730672 3221224576 3221200448 134546505 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73502 56035 301 301 0 73201 0
vsize: 294008
[startup+50.0033 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 11255
Raw data (stat): 11255 (pb2sat-v2) R 11254 31399 31398 0 -1 0 133116 0 0 0 4719 278 0 0 25 0 1 0 971331261 482099200 87865 4294967295 134512640 135730672 3221224576 3221191528 135284366 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 117700 87868 301 301 0 117399 0
vsize: 470800
[startup+60.003 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 11255
Raw data (stat): 11255 (pb2sat-v2) R 11254 31399 31398 0 -1 0 176449 0 0 0 5629 369 0 0 25 0 1 0 971331261 527945728 88677 4294967295 134512640 135730672 3221224576 3221187532 134637875 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 128893 88677 301 301 0 128592 0
vsize: 515572
[startup+70.0036 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 11255
Raw data (stat): 11255 (pb2sat-v2) R 11254 31399 31398 0 -1 0 188440 0 0 0 6600 397 0 0 25 0 1 0 971331261 561500160 100443 4294967295 134512640 135730672 3221224576 3221199432 135284246 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137085 100443 301 301 0 136784 0
vsize: 548340
[startup+80.0044 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 11255
Raw data (stat): 11255 (pb2sat-v2) R 11254 31399 31398 0 -1 0 202457 0 0 0 7570 427 0 0 25 0 1 0 971331261 562446336 114205 4294967295 134512640 135730672 3221224576 3221174552 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137316 114205 301 301 0 137015 0
vsize: 549264
[startup+90.0048 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 11255
Raw data (stat): 11255 (pb2sat-v2) R 11254 31399 31398 0 -1 0 219695 0 0 0 8531 466 0 0 25 0 1 0 971331261 578260992 131195 4294967295 134512640 135730672 3221224576 3221176304 134546410 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 141177 131195 301 301 0 140876 0
vsize: 564708
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 11255
Raw data (stat): 11255 (pb2sat-v2) R 11254 31399 31398 0 -1 0 243731 0 0 0 9481 516 0 0 25 0 1 0 971331261 943616000 154606 4294967295 134512640 135730672 3221224576 3221179612 135284122 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 230375 154606 301 301 0 230074 0
vsize: 921500
[startup+106.657 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 11255
Raw data (stat): 11255 (pb2sat-v2) R 11254 31399 31398 0 -1 0 243731 0 0 0 9481 516 0 0 25 0 1 0 971331261 943616000 154606 4294967295 134512640 135730672 3221224576 3221179612 135284122 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 230375 154606 301 301 0 230074 0
vsize: 0

Child status: 1
Real time (s): 106.657
CPU time (s): 106.632
CPU user time (s): 101.151
CPU system time (s): 5.48117
CPU usage (%): 99.9766
Max. virtual memory (Kb): 921500
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####