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/MIPLIB/miplib3/normalized-mps-v2-20-10-mkc.opb
MD5SUM087a7cd0fdb8b0bf40fe6b459b39a663
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 2946
Biggest coefficient in the objective function 20000
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 31442101
Number of bits of the sum of numbers in the objective function 25
Biggest number in a constraint 67108864000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 138201238403
Number of bits of the biggest sum of numbers38
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1230.15
Number of variables5383
Total number of constraints8734
Number of constraints which are clauses2977
Number of constraints which are cardinality constraints (but not clauses)5731
Number of constraints which are nor clauses,nor cardinality constraints26
Minimum length of a constraint1
Maximum length of a constraint2952

Trace number 42528 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 09:59:26 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25748 boxname=wulflinc6 idbench=1048 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  087a7cd0fdb8b0bf40fe6b459b39a663  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-mkc.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-mkc.opb
IDLAUNCH: 25748
/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:        707016 kB
Buffers:         33688 kB
Cached:         271352 kB
SwapCached:       1028 kB
Active:          36228 kB
Inactive:       270972 kB
HighTotal:      131008 kB
HighFree:         1932 kB
LowTotal:       903652 kB
LowFree:        705084 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            14840 kB
Committed_AS:    63812 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 10:01:20 (client local time) WITH STATUS 1 IN 113.445 SECONDS
stats: 25748 7 113.445 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 0.94 0.90 2/54 18151
Raw data (stat): 18151 (runsolver) R 18150 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969869587 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+10.0009 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 18151
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 27203 0 0 0 943 56 0 0 25 0 1 0 969869587 88195072 16079 4294967295 134512640 135730672 3221224576 3219881728 134770759 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21532 16079 301 301 0 21231 0
vsize: 86128
[startup+20.0017 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 18151
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 55937 0 0 0 1884 115 0 0 25 0 1 0 969869587 175374336 33582 4294967295 134512640 135730672 3221224576 3220532648 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42816 33583 301 301 0 42515 0
vsize: 171264
[startup+30.0022 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 18151
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 89872 0 0 0 2812 188 0 0 25 0 1 0 969869587 345288704 57599 4294967295 134512640 135730672 3221224576 3220544448 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84299 57603 301 301 0 83998 0
vsize: 337196
[startup+40.0037 s]
Raw data (loadavg): 1.03 0.96 0.91 2/57 18191
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 111786 0 0 0 3767 233 0 0 25 0 1 0 969869587 347295744 67001 4294967295 134512640 135730672 3221224576 3220077536 134770721 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84789 67001 301 301 0 84488 0
vsize: 339156
[startup+50.0053 s]
Raw data (loadavg): 1.03 0.96 0.91 2/54 18204
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 149168 0 0 0 4696 305 0 0 25 0 1 0 969869587 546013184 103440 4294967295 134512640 135730672 3221224576 3219883216 134775280 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 133304 103440 301 301 0 133003 0
vsize: 533216
[startup+60.0059 s]
Raw data (loadavg): 1.02 0.96 0.91 2/54 18204
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 177152 0 0 0 5638 363 0 0 25 0 1 0 969869587 690233344 112567 4294967295 134512640 135730672 3221224576 3219994608 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168514 112571 301 301 0 168213 0
vsize: 674056
[startup+70.0068 s]
Raw data (loadavg): 1.02 0.96 0.91 2/54 18204
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 200174 0 0 0 6587 414 0 0 25 0 1 0 969869587 623120384 110832 4294967295 134512640 135730672 3221224576 3220016212 135288324 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 152129 110832 301 301 0 151828 0
vsize: 608516
[startup+80.0077 s]
Raw data (loadavg): 1.02 0.97 0.91 2/54 18204
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 219076 0 0 0 7549 453 0 0 25 0 1 0 969869587 650153984 129514 4294967295 134512640 135730672 3221224576 3220028352 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158729 129514 301 301 0 158428 0
vsize: 634916
[startup+90.0082 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 18204
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 238341 0 0 0 8510 491 0 0 25 0 1 0 969869587 678809600 148560 4294967295 134512640 135730672 3221224576 3219873340 134607999 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165725 148561 301 301 0 165424 0
vsize: 662900
[startup+100.008 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 18204
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 253942 0 0 0 9477 525 0 0 25 0 1 0 969869587 752553984 163980 4294967295 134512640 135730672 3221224576 3220130432 134770772 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183729 163980 301 301 0 183428 0
vsize: 734916
[startup+110.009 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 18206
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 260166 0 0 0 10447 555 0 0 25 0 1 0 969869587 402477056 97769 4294967295 134512640 135730672 3221224576 3221222764 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98261 97769 301 301 0 97960 0
vsize: 393044
[startup+113.428 s]
Raw data (loadavg): 1.01 0.97 0.91 1/53 18206
Raw data (stat): 18151 (pb2sat-v2) R 18150 25568 25567 0 -1 0 260166 0 0 0 10447 555 0 0 25 0 1 0 969869587 402477056 97769 4294967295 134512640 135730672 3221224576 3221222764 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98261 97769 301 301 0 97960 0
vsize: 0

Child status: 1
Real time (s): 113.427
CPU time (s): 113.445
CPU user time (s): 107.684
CPU system time (s): 5.76112
CPU usage (%): 100.015
Max. virtual memory (Kb): 734916
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####