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/MIPLIB/miplib3/normalized-mps-v2-13-7-p2756.opb
MD5SUM49fba7b1c2f3e65c53f8418d126e3ec3
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 4605
Optimality of the best value was proved NO
Number of terms in the objective function 2166
Biggest coefficient in the objective function 11000
Number of bits for the biggest coefficient in the objective function 14
Sum of the numbers in the objective function 321831
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 11000
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 321831
Number of bits of the biggest sum of numbers19
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.06684
Number of variables2756
Total number of constraints3511
Number of constraints which are clauses132
Number of constraints which are cardinality constraints (but not clauses)2976
Number of constraints which are nor clauses,nor cardinality constraints403
Minimum length of a constraint1
Maximum length of a constraint546

Trace number 35661 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc18 THE 2005-05-28 13:43:13 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24970 boxname=wulflinc18 idbench=1442 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  49fba7b1c2f3e65c53f8418d126e3ec3  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-p2756.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-p2756.opb
IDLAUNCH: 24970
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
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		: 451.177
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:        755140 kB
Buffers:         32388 kB
Cached:         217348 kB
SwapCached:        708 kB
Active:          19480 kB
Inactive:       232264 kB
HighTotal:      131008 kB
HighFree:        27216 kB
LowTotal:       903652 kB
LowFree:        727924 kB
SwapTotal:     2097892 kB
SwapFree:      2096240 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5120 kB
Slab:            22100 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:45:01 (client local time) WITH STATUS 1 IN 107.472 SECONDS
stats: 24970 7 107.472 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): 0.90 0.93 0.90 2/54 3615
Raw data (stat): 3615 (runsolver) R 3614 24172 24171 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865238180 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+10.0011 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 3615
Raw data (stat): 3615 (pb2sat) R 3614 24172 24171 0 -1 0 29524 0 0 0 932 66 0 0 25 0 1 0 865238180 90148864 18388 4294967295 134512640 135726644 3221224576 3220674080 134782666 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22009 18390 300 300 0 21709 0
vsize: 88036
[startup+20.0024 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 3615
Raw data (stat): 3615 (pb2sat) R 3614 24172 24171 0 -1 0 57867 0 0 0 1875 124 0 0 25 0 1 0 865238180 175702016 35521 4294967295 134512640 135726644 3221224576 3220544128 134554706 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42896 35521 300 300 0 42596 0
vsize: 171584
[startup+30.002 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 3615
Raw data (stat): 3615 (pb2sat) R 3614 24172 24171 0 -1 0 98339 0 0 0 2790 209 0 0 25 0 1 0 865238180 299737088 53801 4294967295 134512640 135726644 3221224576 3220858264 135280661 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73178 53802 300 300 0 72878 0
vsize: 292712
[startup+40.0019 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 3615
Raw data (stat): 3615 (pb2sat) R 3614 24172 24171 0 -1 0 114414 0 0 0 3755 243 0 0 25 0 1 0 865238180 347078656 69651 4294967295 134512640 135726644 3221224576 3220815004 134634295 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84736 69651 300 300 0 84436 0
vsize: 338944
[startup+50.0021 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 3615
Raw data (stat): 3615 (pb2sat) R 3614 24172 24171 0 -1 0 143882 0 0 0 4700 299 0 0 25 0 1 0 865238180 534159360 98536 4294967295 134512640 135726644 3221224576 3220721360 134771702 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 130410 98538 300 300 0 130110 0
vsize: 521640
[startup+60.0027 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 3615
Raw data (stat): 3615 (pb2sat) R 3614 24172 24171 0 -1 0 195368 0 0 0 5596 403 0 0 25 0 1 0 865238180 597852160 106239 4294967295 134512640 135726644 3221224576 3221144552 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145960 106240 300 300 0 145660 0
vsize: 583840
[startup+70.0036 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 3615
Raw data (stat): 3615 (pb2sat) R 3614 24172 24171 0 -1 0 206825 0 0 0 6572 428 0 0 25 0 1 0 865238180 631406592 117494 4294967295 134512640 135726644 3221224576 3221132108 134604400 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154152 117495 300 300 0 153852 0
vsize: 616608
[startup+80.0039 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 3615
Raw data (stat): 3615 (pb2sat) R 3614 24172 24171 0 -1 0 225219 0 0 0 7532 467 0 0 25 0 1 0 865238180 652222464 135652 4294967295 134512640 135726644 3221224576 3221062864 134767237 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159234 135653 300 300 0 158934 0
vsize: 636936
[startup+90.0045 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 3615
Raw data (stat): 3615 (pb2sat) R 3614 24172 24171 0 -1 0 243862 0 0 0 8493 507 0 0 25 0 1 0 865238180 729182208 154081 4294967295 134512640 135726644 3221224576 3220797200 134780351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 178023 154081 300 300 0 177723 0
vsize: 712092
[startup+100.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 3615
Raw data (stat): 3615 (pb2sat) R 3614 24172 24171 0 -1 0 261784 0 0 0 9453 547 0 0 25 0 1 0 865238180 754593792 171797 4294967295 134512640 135726644 3221224576 3221003184 134782195 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184227 171798 300 300 0 183927 0
vsize: 736908
[startup+107.471 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 3615
Raw data (stat): 3615 (pb2sat) R 3614 24172 24171 0 -1 0 261784 0 0 0 9453 547 0 0 25 0 1 0 865238180 754593792 171797 4294967295 134512640 135726644 3221224576 3221003184 134782195 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184227 171798 300 300 0 183927 0
vsize: 0

Child status: 1
Real time (s): 107.47
CPU time (s): 107.472
CPU user time (s): 101.542
CPU system time (s): 5.9301
CPU usage (%): 100.001
Max. virtual memory (Kb): 736908
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####