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-stocfor2.opb
MD5SUM8756a41134c52dcbfa591c90bdd1a8a3
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 31770
Biggest coefficient in the objective function 1855425871872000000
Number of bits for the biggest coefficient in the objective function 61
Sum of the numbers in the objective function 393343428838367821824
Number of bits of the sum of numbers in the objective function 69
Biggest number in a constraint 1855425871872000000
Number of bits of the biggest number in a constraint 61
Biggest sum of numbers in a constraint 393343428838367821824
Number of bits of the biggest sum of numbers69
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.532918
Number of variables60930
Total number of constraints2157
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 constraints2157
Minimum length of a constraint30
Maximum length of a constraint450

Trace number 35115 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc29 THE 2005-05-28 12:15:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24417 boxname=wulflinc29 idbench=889 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8756a41134c52dcbfa591c90bdd1a8a3  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-stocfor2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-20-10-stocfor2.opb
IDLAUNCH: 24417
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.020
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	: 3
cpu MHz		: 451.020
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:        692956 kB
Buffers:         34332 kB
Cached:         281032 kB
SwapCached:        632 kB
Active:          22456 kB
Inactive:       294880 kB
HighTotal:      131008 kB
HighFree:        48272 kB
LowTotal:       903652 kB
LowFree:        644684 kB
SwapTotal:     2097892 kB
SwapFree:      2096368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5132 kB
Slab:            18640 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:17:47 (client local time) WITH STATUS 1 IN 132.552 SECONDS
stats: 24417 7 132.552 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 0.92 2/54 27576
Raw data (stat): 27576 (runsolver) R 27575 20001 20000 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864722213 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 s]
Raw data (loadavg): 0.92 0.96 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 2149 0 0 0 994 5 0 0 25 0 1 0 864722213 7954432 1475 4294967295 134512640 135726644 3221224576 3221221664 134556187 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 1942 1475 300 300 0 1642 0
vsize: 7768
[startup+19.9998 s]
Raw data (loadavg): 0.94 0.96 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 2657 0 0 0 1993 6 0 0 25 0 1 0 864722213 9306112 1974 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 2272 1974 300 300 0 1972 0
vsize: 9088
[startup+30.0008 s]
Raw data (loadavg): 0.94 0.96 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 30116 0 0 0 2933 66 0 0 25 0 1 0 864722213 95133696 18990 4294967295 134512640 135726644 3221224576 3208493680 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 23226 18990 300 300 0 22926 0
vsize: 92904
[startup+40.0012 s]
Raw data (loadavg): 0.95 0.96 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 58382 0 0 0 3877 122 0 0 25 0 1 0 864722213 189513728 36033 4294967295 134512640 135726644 3221224576 3208491680 134783176 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 46268 36033 300 300 0 45968 0
vsize: 185072
[startup+50.009 s]
Raw data (loadavg): 0.96 0.96 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 86527 0 0 0 4825 175 0 0 25 0 1 0 864722213 259944448 54250 4294967295 134512640 135726644 3221224576 3208494112 134554783 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 63463 54251 300 300 0 63163 0
vsize: 253852
[startup+60.0088 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 114914 0 0 0 5767 233 0 0 25 0 1 0 864722213 361537536 70127 4294967295 134512640 135726644 3221224576 3208493280 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 88266 70127 300 300 0 87966 0
vsize: 353064
[startup+70.0086 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 157125 0 0 0 6693 307 0 0 25 0 1 0 864722213 567513088 111205 4294967295 134512640 135726644 3221224576 3208494560 134771702 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138553 111207 300 300 0 138253 0
vsize: 554212
[startup+80.0097 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 186204 0 0 0 7633 367 0 0 25 0 1 0 864722213 703787008 121491 4294967295 134512640 135726644 3221224576 3208493792 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171823 121495 300 300 0 171523 0
vsize: 687292
[startup+90.0091 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 205074 0 0 0 8591 410 0 0 25 0 1 0 864722213 638025728 115585 4294967295 134512640 135726644 3221224576 3208496152 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155768 115585 300 300 0 155468 0
vsize: 623072
[startup+100.01 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 225356 0 0 0 9552 449 0 0 25 0 1 0 864722213 668037120 135628 4294967295 134512640 135726644 3221224576 3208504064 134783437 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163095 135628 300 300 0 162795 0
vsize: 652380
[startup+110.01 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 245662 0 0 0 10514 487 0 0 25 0 1 0 864722213 698200064 155691 4294967295 134512640 135726644 3221224576 3208495752 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170459 155692 300 300 0 170159 0
vsize: 681836
[startup+120.009 s]
Raw data (loadavg): 0.99 0.97 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 260368 0 0 0 11482 519 0 0 25 0 1 0 864722213 772046848 170223 4294967295 134512640 135726644 3221224576 3208496844 135138361 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 188488 170223 300 300 0 188188 0
vsize: 753952
[startup+130.01 s]
Raw data (loadavg): 0.99 0.97 0.92 2/54 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 260370 0 0 0 12468 533 0 0 25 0 1 0 864722213 410796032 99660 4294967295 134512640 135726644 3221224576 3221222764 135277577 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 100292 99660 300 300 0 99992 0
vsize: 401168
[startup+132.547 s]
Raw data (loadavg): 0.99 0.97 0.92 1/53 27576
Raw data (stat): 27576 (pb2sat) R 27575 20001 20000 0 -1 0 260370 0 0 0 12468 533 0 0 25 0 1 0 864722213 410796032 99660 4294967295 134512640 135726644 3221224576 3221222764 135277577 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 100292 99660 300 300 0 99992 0
vsize: 0

Child status: 1
Real time (s): 132.547
CPU time (s): 132.552
CPU user time (s): 127.008
CPU system time (s): 5.54416
CPU usage (%): 100.004
Max. virtual memory (Kb): 753952
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####