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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-sctap2.opb
MD5SUMc56066a13a725fcc9c143db3d9f8cc06
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 24450007
Optimality of the best value was proved NO
Number of terms in the objective function 28200
Biggest coefficient in the objective function 41943040
Number of bits for the biggest coefficient in the objective function 26
Sum of the numbers in the objective function 25763487750
Number of bits of the sum of numbers in the objective function 35
Biggest number in a constraint 41943040
Number of bits of the biggest number in a constraint 26
Biggest sum of numbers in a constraint 25763487750
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.2
Number of variables37600
Total number of constraints1090
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 constraints1090
Minimum length of a constraint60
Maximum length of a constraint480

Trace number 35488 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-05-28 13:17:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24784 boxname=wulflinc5 idbench=1256 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  c56066a13a725fcc9c143db3d9f8cc06  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-sctap2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-sctap2.opb
IDLAUNCH: 24784
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        705500 kB
Buffers:         34104 kB
Cached:         270424 kB
SwapCached:        588 kB
Active:          20296 kB
Inactive:       286248 kB
HighTotal:      131008 kB
HighFree:        23128 kB
LowTotal:       903652 kB
LowFree:        682372 kB
SwapTotal:     2097136 kB
SwapFree:      2095612 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5132 kB
Slab:            16748 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:19:46 (client local time) WITH STATUS 1 IN 121.07 SECONDS
stats: 24784 7 121.07 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 0.97 0.92 1/54 20168
Raw data (stat): 20168 (runsolver) R 20167 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806878432 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+10.0004 s]
Raw data (loadavg): 0.93 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 2187 0 0 0 993 5 0 0 25 0 1 0 806878432 7954432 1512 4294967295 134512640 135726644 3221224592 3221221120 134773427 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 1942 1512 300 300 0 1642 0
vsize: 7768
[startup+20.0001 s]
Raw data (loadavg): 0.94 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 15807 0 0 0 1961 37 0 0 25 0 1 0 806878432 62697472 11813 4294967295 134512640 135726644 3221224592 3210410208 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 15307 11817 300 300 0 15007 0
vsize: 61228
[startup+30.0011 s]
Raw data (loadavg): 0.95 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 51606 0 0 0 2887 111 0 0 25 0 1 0 806878432 163024896 29361 4294967295 134512640 135726644 3221224592 3211910168 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 39801 29361 300 300 0 39501 0
vsize: 159204
[startup+40.0005 s]
Raw data (loadavg): 0.95 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 82631 0 0 0 3826 172 0 0 25 0 1 0 806878432 259653632 50971 4294967295 134512640 135726644 3221224592 3210660164 135277560 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 63392 50971 300 300 0 63092 0
vsize: 253568
[startup+50.0013 s]
Raw data (loadavg): 0.96 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 108087 0 0 0 4770 228 0 0 25 0 1 0 806878432 348340224 63415 4294967295 134512640 135726644 3221224592 3210699768 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85044 63415 300 300 0 84744 0
vsize: 340176
[startup+60.0014 s]
Raw data (loadavg): 0.97 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 129684 0 0 0 5730 269 0 0 25 0 1 0 806878432 379564032 84763 4294967295 134512640 135726644 3221224592 3210778096 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 92667 84763 300 300 0 92367 0
vsize: 370668
[startup+70.0018 s]
Raw data (loadavg): 0.97 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 181156 0 0 0 6634 365 0 0 25 0 1 0 806878432 710594560 116655 4294967295 134512640 135726644 3221224592 3210287008 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 173485 116659 300 300 0 173185 0
vsize: 693940
[startup+80.0025 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 205148 0 0 0 7581 418 0 0 25 0 1 0 806878432 643481600 115873 4294967295 134512640 135726644 3221224592 3210580168 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157100 115873 300 300 0 156800 0
vsize: 628400
[startup+90.0026 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 223008 0 0 0 8541 458 0 0 25 0 1 0 806878432 659566592 133486 4294967295 134512640 135726644 3221224592 3211285368 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161027 133486 300 300 0 160727 0
vsize: 644108
[startup+100.003 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 243817 0 0 0 9497 503 0 0 25 0 1 0 806878432 689168384 154056 4294967295 134512640 135726644 3221224592 3210142456 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 168254 154056 300 300 0 167954 0
vsize: 673016
[startup+110.004 s]
Raw data (loadavg): 0.98 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 260711 0 0 0 10462 537 0 0 25 0 1 0 806878432 763695104 170756 4294967295 134512640 135726644 3221224592 3210133680 134767123 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186449 170757 300 300 0 186149 0
vsize: 745796
[startup+120.008 s]
Raw data (loadavg): 0.99 0.97 0.92 2/54 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 267594 0 0 0 11433 567 0 0 25 0 1 0 806878432 413089792 100440 4294967295 134512640 135726644 3221224592 3221222992 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 100852 100440 300 300 0 100552 0
vsize: 403408
[startup+121.149 s]
Raw data (loadavg): 0.99 0.97 0.92 1/53 20168
Raw data (stat): 20168 (pb2sat) R 20167 7266 7265 0 -1 0 267594 0 0 0 11433 567 0 0 25 0 1 0 806878432 413089792 100440 4294967295 134512640 135726644 3221224592 3221222992 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 100852 100440 300 300 0 100552 0
vsize: 0

Child status: 1
Real time (s): 121.148
CPU time (s): 121.07
CPU user time (s): 115.179
CPU system time (s): 5.8901
CPU usage (%): 99.9351
Max. virtual memory (Kb): 745796
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####