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-fffff800.opb
MD5SUM41762d7ce490e5551e5099dd159735cc
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 240
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 8589934584
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint -2340616713709551616
Number of bits of the biggest number in a constraint 64
Biggest sum of numbers in a constraint 392918753328864690176
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 benchmark0.228964
Number of variables25620
Total number of constraints524
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 constraints524
Minimum length of a constraint30
Maximum length of a constraint7530

Trace number 42310 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 05:26:39 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25528 boxname=wulflinc3 idbench=828 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  41762d7ce490e5551e5099dd159735cc  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-fffff800.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-fffff800.opb
IDLAUNCH: 25528
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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:        777336 kB
Buffers:         34360 kB
Cached:         200508 kB
SwapCached:        820 kB
Active:          59240 kB
Inactive:       177824 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        777084 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14592 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:28:30 (client local time) WITH STATUS 1 IN 110.983 SECONDS
stats: 25528 7 110.983 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): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (runsolver) R 16642 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968224424 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+10.0007 s]
Raw data (loadavg): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 26949 0 0 0 942 56 0 0 25 0 1 0 968224424 88252416 15979 4294967295 134512640 135730672 3221224576 3218150516 134608048 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21546 15979 301 301 0 21245 0
vsize: 86184
[startup+20.0013 s]
Raw data (loadavg): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 55290 0 0 0 1881 117 0 0 25 0 1 0 968224424 173838336 33365 4294967295 134512640 135730672 3221224576 3218762560 134546345 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42441 33365 301 301 0 42140 0
vsize: 169764
[startup+30.0012 s]
Raw data (loadavg): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 96541 0 0 0 2797 201 0 0 25 0 1 0 968224424 301182976 52938 4294967295 134512640 135730672 3221224576 3218415452 134608035 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73531 52938 301 301 0 73230 0
vsize: 294124
[startup+40.001 s]
Raw data (loadavg): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 111583 0 0 0 3767 232 0 0 25 0 1 0 968224424 344469504 67754 4294967295 134512640 135730672 3221224576 3219071072 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84099 67756 301 301 0 83798 0
vsize: 336396
[startup+50.0019 s]
Raw data (loadavg): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 132011 0 0 0 4719 280 0 0 25 0 1 0 968224424 373800960 87945 4294967295 134512640 135730672 3221224576 3219396512 134550685 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 91260 87946 301 301 0 90959 0
vsize: 365040
[startup+60.0021 s]
Raw data (loadavg): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 193566 0 0 0 5597 402 0 0 25 0 1 0 968224424 596996096 106382 4294967295 134512640 135730672 3221224576 3219320288 134770873 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145751 106382 301 301 0 145450 0
vsize: 583004
[startup+70.0026 s]
Raw data (loadavg): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 205557 0 0 0 6568 432 0 0 25 0 1 0 968224424 630550528 118159 4294967295 134512640 135730672 3221224576 3219634368 134786302 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153943 118160 301 301 0 153642 0
vsize: 615772
[startup+80.0034 s]
Raw data (loadavg): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 224240 0 0 0 7528 471 0 0 25 0 1 0 968224424 652312576 136604 4294967295 134512640 135730672 3221224576 3219995740 135301597 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159256 136605 301 301 0 158955 0
vsize: 637024
[startup+90.0039 s]
Raw data (loadavg): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 240924 0 0 0 8492 508 0 0 25 0 1 0 968224424 726568960 153094 4294967295 134512640 135730672 3221224576 3220301984 134784086 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 177385 153094 301 301 0 177084 0
vsize: 709540
[startup+100.004 s]
Raw data (loadavg): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 261327 0 0 0 9450 550 0 0 25 0 1 0 968224424 755765248 173260 4294967295 134512640 135730672 3221224576 3220444512 134786302 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184513 173260 301 301 0 184212 0
vsize: 738052
[startup+110.004 s]
Raw data (loadavg): 1.00 0.97 0.94 2/54 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 265149 0 0 0 10426 574 0 0 25 0 1 0 968224424 409755648 99608 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 100038 99608 301 301 0 99737 0
vsize: 400152
[startup+110.984 s]
Raw data (loadavg): 1.00 0.97 0.94 1/53 16643
Raw data (stat): 16643 (pb2sat-v2) R 16642 20224 20223 0 -1 0 265149 0 0 0 10426 574 0 0 25 0 1 0 968224424 409755648 99608 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 100038 99608 301 301 0 99737 0
vsize: 0

Child status: 1
Real time (s): 110.984
CPU time (s): 110.983
CPU user time (s): 105.031
CPU system time (s): 5.9521
CPU usage (%): 99.9995
Max. virtual memory (Kb): 738052
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####