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-wood1p.opb
MD5SUMa2815b77f36d91ef7299d509f20c9b2a
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 30
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 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 53687091200000000
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 66413144120266883072
Number of bits of the biggest sum of numbers66
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark11.4273
Number of variables77820
Total number of constraints244
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 constraints244
Minimum length of a constraint30
Maximum length of a constraint77760

Trace number 42375 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 06:12:40 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25592 boxname=wulflinc6 idbench=892 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a2815b77f36d91ef7299d509f20c9b2a  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-wood1p.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-wood1p.opb
IDLAUNCH: 25592
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        601944 kB
Buffers:         34084 kB
Cached:         375064 kB
SwapCached:       1028 kB
Active:          76024 kB
Inactive:       335332 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        601692 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5088 kB
Slab:            15572 kB
Committed_AS:    63848 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:14:36 (client local time) WITH STATUS 1 IN 114.685 SECONDS
stats: 25592 7 114.685 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): 0.93 0.95 0.91 1/54 15096
Raw data (stat): 15096 (runsolver) R 15095 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968508897 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+10.0003 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 26143 0 0 0 942 57 0 0 25 0 1 0 968508897 81072128 15056 4294967295 134512640 135730672 3221224576 3216218360 134775037 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19793 15056 301 301 0 19492 0
vsize: 79172
[startup+20.0005 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 53851 0 0 0 1883 116 0 0 25 0 1 0 968508897 173797376 31556 4294967295 134512640 135730672 3221224576 3216391936 134786288 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42431 31556 301 301 0 42130 0
vsize: 169724
[startup+30.0006 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 83908 0 0 0 2823 177 0 0 25 0 1 0 968508897 252907520 51692 4294967295 134512640 135730672 3221224576 3216203216 135284082 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 61745 51692 301 301 0 61444 0
vsize: 246980
[startup+40.0007 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 109259 0 0 0 3774 226 0 0 25 0 1 0 968508897 343957504 64551 4294967295 134512640 135730672 3221224576 3216227228 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83974 64551 301 301 0 83673 0
vsize: 335896
[startup+50.0012 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 130104 0 0 0 4735 266 0 0 25 0 1 0 968508897 374644736 85153 4294967295 134512640 135730672 3221224576 3216249772 134637873 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 91466 85153 301 301 0 91165 0
vsize: 365864
[startup+60.0009 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 189615 0 0 0 5620 381 0 0 25 0 1 0 968508897 700674048 125111 4294967295 134512640 135730672 3221224576 3216204656 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171063 125115 301 301 0 170762 0
vsize: 684252
[startup+70 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 202794 0 0 0 6586 415 0 0 25 0 1 0 968508897 633561088 113502 4294967295 134512640 135730672 3221224576 3216246252 134608004 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154678 113503 301 301 0 154377 0
vsize: 618712
[startup+80.0005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 219933 0 0 0 7553 449 0 0 25 0 1 0 968508897 650997760 130409 4294967295 134512640 135730672 3221224576 3216304376 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158935 130409 301 301 0 158634 0
vsize: 635740
[startup+90.0003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 240018 0 0 0 8513 488 0 0 25 0 1 0 968508897 680206336 150260 4294967295 134512640 135730672 3221224576 3216284336 134770712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 166066 150262 301 301 0 165765 0
vsize: 664264
[startup+99.9995 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 256163 0 0 0 9479 523 0 0 25 0 1 0 968508897 754475008 166214 4294967295 134512640 135730672 3221224576 3216319136 134770772 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184198 166214 301 301 0 183897 0
vsize: 736792
[startup+110 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 263357 0 0 0 10449 553 0 0 25 0 1 0 968508897 405078016 98455 4294967295 134512640 135730672 3221224576 3221222764 135281172 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98896 98455 301 301 0 98595 0
vsize: 395584
[startup+114.657 s]
Raw data (loadavg): 0.99 0.96 0.91 1/53 15096
Raw data (stat): 15096 (pb2sat-v2) R 15095 25568 25567 0 -1 0 263357 0 0 0 10449 553 0 0 25 0 1 0 968508897 405078016 98455 4294967295 134512640 135730672 3221224576 3221222764 135281172 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98896 98455 301 301 0 98595 0
vsize: 0

Child status: 1
Real time (s): 114.657
CPU time (s): 114.685
CPU user time (s): 108.943
CPU system time (s): 5.74113
CPU usage (%): 100.024
Max. virtual memory (Kb): 736792
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####