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/miplib/normalized-mps-v2-13-7-air02.opb
MD5SUM75acdcffdd43b3d3a30d0459a6bffe45
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 6106
Optimality of the best value was proved NO
Number of terms in the objective function 6774
Biggest coefficient in the objective function 4804
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 6613094
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 4804
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 6613094
Number of bits of the biggest sum of numbers23
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.21
Number of variables6774
Total number of constraints6824
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)6824
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint3729

Trace number 42762 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 14:26:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25979 boxname=wulflinc5 idbench=1279 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  75acdcffdd43b3d3a30d0459a6bffe45  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-air02.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-air02.opb
IDLAUNCH: 25979
/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:        681804 kB
Buffers:         18624 kB
Cached:         310924 kB
SwapCached:        660 kB
Active:          25976 kB
Inactive:       305680 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        681524 kB
SwapTotal:     2097136 kB
SwapFree:      2095536 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15476 kB
Committed_AS:    63716 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 14:28:39 (client local time) WITH STATUS 1 IN 111.194 SECONDS
stats: 25979 7 111.194 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 15142
c big objective detected
c trying from 0 to 511

	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): 0.85 0.94 0.90 1/54 16151
Raw data (stat): 16151 (runsolver) R 16150 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971474956 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+10.001 s]
Raw data (loadavg): 0.87 0.94 0.90 2/54 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 13318 0 0 0 966 33 0 0 25 0 1 0 971474956 41218048 7892 4294967295 134512640 135730672 3221224576 3221221592 135291065 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 10063 7892 301 301 0 9762 0
vsize: 40252
[startup+20.0018 s]
Raw data (loadavg): 0.89 0.94 0.91 2/54 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 39806 0 0 0 1908 90 0 0 25 0 1 0 971474956 120057856 23884 4294967295 134512640 135730672 3221224576 3218184544 134608712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 29311 23884 301 301 0 29010 0
vsize: 117244
[startup+30.0029 s]
Raw data (loadavg): 0.91 0.95 0.91 2/54 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 74757 0 0 0 2838 161 0 0 25 0 1 0 971474956 273723392 51977 4294967295 134512640 135730672 3221224576 3220495728 134775365 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 66827 51978 301 301 0 66526 0
vsize: 267308
[startup+40.0026 s]
Raw data (loadavg): 0.92 0.95 0.91 2/54 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 99056 0 0 0 3782 217 0 0 25 0 1 0 971474956 295698432 55052 4294967295 134512640 135730672 3221224576 3220740624 134770873 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72192 55052 301 301 0 71891 0
vsize: 288768
[startup+50.0028 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 116727 0 0 0 4738 261 0 0 25 0 1 0 971474956 357367808 72486 4294967295 134512640 135730672 3221224576 3218191336 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 87248 72486 301 301 0 86947 0
vsize: 348992
[startup+60.0031 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 153310 0 0 0 5664 336 0 0 25 0 1 0 971474956 484102144 90517 4294967295 134512640 135730672 3221224576 3220673904 134607982 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 118189 90517 301 301 0 117888 0
vsize: 472756
[startup+70.0029 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 165428 0 0 0 6636 363 0 0 25 0 1 0 971474956 484102144 102377 4294967295 134512640 135730672 3221224576 3220358376 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 118189 102377 301 301 0 117888 0
vsize: 472756
[startup+80.0039 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 204248 0 0 0 7552 448 0 0 25 0 1 0 971474956 601796608 116406 4294967295 134512640 135730672 3221224576 3219705280 134785957 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 146923 116407 301 301 0 146622 0
vsize: 587692
[startup+90.0034 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 220315 0 0 0 8517 483 0 0 25 0 1 0 971474956 660357120 132262 4294967295 134512640 135730672 3221224576 3220210112 134785972 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161220 132262 301 301 0 160919 0
vsize: 644880
[startup+100.003 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 239113 0 0 0 9475 525 0 0 25 0 1 0 971474956 690634752 150818 4294967295 134512640 135730672 3221224576 3219025316 135281132 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168612 150818 301 301 0 168311 0
vsize: 674448
[startup+110.004 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 242666 0 0 0 10456 544 0 0 25 0 1 0 971474956 386207744 93860 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 94289 93860 301 301 0 93988 0
vsize: 377156
[startup+111.195 s]
Raw data (loadavg): 0.97 0.95 0.91 1/53 16151
Raw data (stat): 16151 (pb2sat-v2) R 16150 7266 7265 0 -1 0 242666 0 0 0 10456 544 0 0 25 0 1 0 971474956 386207744 93860 4294967295 134512640 135730672 3221224576 3221222928 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 94289 93860 301 301 0 93988 0
vsize: 0

Child status: 1
Real time (s): 111.195
CPU time (s): 111.194
CPU user time (s): 105.555
CPU system time (s): 5.63914
CPU usage (%): 99.9995
Max. virtual memory (Kb): 674448
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####