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/miplib/normalized-mps-v2-20-10-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 benchmark1190.1
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 35119 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-05-28 12:16:32 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24423 boxname=wulflinc3 idbench=895 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  75acdcffdd43b3d3a30d0459a6bffe45  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-air02.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-air02.opb
IDLAUNCH: 24423
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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:        880884 kB
Buffers:         32916 kB
Cached:          99036 kB
SwapCached:        240 kB
Active:          50904 kB
Inactive:        83688 kB
HighTotal:      131008 kB
HighFree:        29792 kB
LowTotal:       903652 kB
LowFree:        851092 kB
SwapTotal:     2097136 kB
SwapFree:      2096480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6324 kB
Slab:            13624 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:18:14 (client local time) WITH STATUS 1 IN 101.78 SECONDS
stats: 24423 7 101.78 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 0.98 0.91 1/54 28118
Raw data (stat): 28118 (runsolver) R 28117 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806503545 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+10.0003 s]
Raw data (loadavg): 0.94 0.98 0.91 2/54 28118
Raw data (stat): 28118 (pb2sat) R 28117 20224 20223 0 -1 0 27488 0 0 0 935 64 0 0 25 0 1 0 806503545 81637376 16361 4294967295 134512640 135726644 3221224592 3219830072 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19931 16361 300 300 0 19631 0
vsize: 79724
[startup+20.0007 s]
Raw data (loadavg): 0.95 0.98 0.91 2/54 28118
Raw data (stat): 28118 (pb2sat) R 28117 20224 20223 0 -1 0 55974 0 0 0 1870 129 0 0 25 0 1 0 806503545 177741824 33608 4294967295 134512640 135726644 3221224592 3218954416 135101171 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43394 33609 300 300 0 43094 0
vsize: 173576
[startup+30.0006 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 28118
Raw data (stat): 28118 (pb2sat) R 28117 20224 20223 0 -1 0 83307 0 0 0 2818 181 0 0 25 0 1 0 806503545 244957184 50995 4294967295 134512640 135726644 3221224592 3218784168 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 59804 50995 300 300 0 59504 0
vsize: 239216
[startup+40.0007 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 28118
Raw data (stat): 28118 (pb2sat) R 28117 20224 20223 0 -1 0 112407 0 0 0 3755 244 0 0 25 0 1 0 806503545 351821824 67575 4294967295 134512640 135726644 3221224592 3219137480 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85894 67575 300 300 0 85594 0
vsize: 343576
[startup+50.0012 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 28118
Raw data (stat): 28118 (pb2sat) R 28117 20224 20223 0 -1 0 153193 0 0 0 4679 320 0 0 25 0 1 0 806503545 485576704 88757 4294967295 134512640 135726644 3221224592 3219119668 134767183 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 118549 88757 300 300 0 118249 0
vsize: 474196
[startup+60.0015 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 28118
Raw data (stat): 28118 (pb2sat) R 28117 20224 20223 0 -1 0 166233 0 0 0 5649 351 0 0 25 0 1 0 806503545 485576704 101529 4294967295 134512640 135726644 3221224592 3218786168 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 118549 101529 300 300 0 118249 0
vsize: 474196
[startup+70.0019 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 28118
Raw data (stat): 28118 (pb2sat) R 28117 20224 20223 0 -1 0 206061 0 0 0 6560 440 0 0 25 0 1 0 806503545 602865664 116554 4294967295 134512640 135726644 3221224592 3220550144 134554579 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 147184 116554 300 300 0 146884 0
vsize: 588736
[startup+80.0027 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 28118
Raw data (stat): 28118 (pb2sat) R 28117 20224 20223 0 -1 0 223560 0 0 0 7523 477 0 0 25 0 1 0 806503545 663453696 133830 4294967295 134512640 135726644 3221224592 3218576896 134782666 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161976 133830 300 300 0 161676 0
vsize: 647904
[startup+90.0029 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 28118
Raw data (stat): 28118 (pb2sat) R 28117 20224 20223 0 -1 0 244243 0 0 0 8486 515 0 0 25 0 1 0 806503545 696029184 154256 4294967295 134512640 135726644 3221224592 3219150248 135280666 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169929 154257 300 300 0 169629 0
vsize: 679716
[startup+100.003 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 28118
Raw data (stat): 28118 (pb2sat) R 28117 20224 20223 0 -1 0 249056 0 0 0 9464 536 0 0 25 0 1 0 806503545 396824576 96443 4294967295 134512640 135726644 3221224592 3221222944 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96881 96443 300 300 0 96581 0
vsize: 387524
[startup+101.775 s]
Raw data (loadavg): 0.98 0.98 0.91 1/53 28118
Raw data (stat): 28118 (pb2sat) R 28117 20224 20223 0 -1 0 249056 0 0 0 9464 536 0 0 25 0 1 0 806503545 396824576 96443 4294967295 134512640 135726644 3221224592 3221222944 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96881 96443 300 300 0 96581 0
vsize: 0

Child status: 1
Real time (s): 101.775
CPU time (s): 101.78
CPU user time (s): 96.2124
CPU system time (s): 5.56715
CPU usage (%): 100.005
Max. virtual memory (Kb): 679716
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####