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-p0282.opb
MD5SUM1a8deb577df7e72871b7e1004c098336
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 258411
Optimality of the best value was proved NO
Number of terms in the objective function 282
Biggest coefficient in the objective function 160646
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 1302615
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 160646
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 1302615
Number of bits of the biggest sum of numbers21
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.01984
Number of variables282
Total number of constraints523
Number of constraints which are clauses177
Number of constraints which are cardinality constraints (but not clauses)282
Number of constraints which are nor clauses,nor cardinality constraints64
Minimum length of a constraint1
Maximum length of a constraint57

Trace number 35275 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc15 THE 2005-05-28 12:38:52 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24584 boxname=wulflinc15 idbench=1056 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1a8deb577df7e72871b7e1004c098336  /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-p0282.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-p0282.opb
IDLAUNCH: 24584
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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		: 450.999
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:        832496 kB
Buffers:         33364 kB
Cached:         146572 kB
SwapCached:        604 kB
Active:          46340 kB
Inactive:       135724 kB
HighTotal:      131008 kB
HighFree:         7196 kB
LowTotal:       903652 kB
LowFree:        825300 kB
SwapTotal:     2097136 kB
SwapFree:      2095616 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5116 kB
Slab:            14448 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:40:37 (client local time) WITH STATUS 1 IN 104.565 SECONDS
stats: 24584 7 104.565 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): 0.86 0.92 0.90 1/54 2876
Raw data (stat): 2876 (runsolver) R 2875 23514 23513 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806638865 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+10.0007 s]
Raw data (loadavg): 0.88 0.92 0.90 2/54 2876
Raw data (stat): 2876 (pb2sat) R 2875 23514 23513 0 -1 0 30535 0 0 0 934 64 0 0 25 0 1 0 806638865 90517504 19388 4294967295 134512640 135726644 3221224576 3221144552 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22099 19388 300 300 0 21799 0
vsize: 88396
[startup+20.0012 s]
Raw data (loadavg): 0.90 0.93 0.90 2/54 2876
Raw data (stat): 2876 (pb2sat) R 2875 23514 23513 0 -1 0 59931 0 0 0 1875 124 0 0 25 0 1 0 806638865 177827840 37560 4294967295 134512640 135726644 3221224576 3221160928 134554600 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43415 37560 300 300 0 43115 0
vsize: 173660
[startup+30.0014 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 2876
Raw data (stat): 2876 (pb2sat) R 2875 23514 23513 0 -1 0 99318 0 0 0 2799 200 0 0 25 0 1 0 806638865 332308480 54761 4294967295 134512640 135726644 3221224576 3221185600 134780435 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81130 54761 300 300 0 80830 0
vsize: 324520
[startup+40.0013 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 2876
Raw data (stat): 2876 (pb2sat) R 2875 23514 23513 0 -1 0 117520 0 0 0 3764 235 0 0 25 0 1 0 806638865 350695424 72718 4294967295 134512640 135726644 3221224576 3221188552 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85619 72718 300 300 0 85319 0
vsize: 342476
[startup+50.0017 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 2876
Raw data (stat): 2876 (pb2sat) R 2875 23514 23513 0 -1 0 162681 0 0 0 4684 315 0 0 25 0 1 0 806638865 562921472 116683 4294967295 134512640 135726644 3221224576 3221178016 135279084 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137432 116683 300 300 0 137132 0
vsize: 549728
[startup+60.0019 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 2876
Raw data (stat): 2876 (pb2sat) R 2875 23514 23513 0 -1 0 197626 0 0 0 5609 391 0 0 25 0 1 0 806638865 596471808 108453 4294967295 134512640 135726644 3221224576 3221170480 134782666 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145623 108453 300 300 0 145323 0
vsize: 582492
[startup+70.0027 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 2876
Raw data (stat): 2876 (pb2sat) R 2875 23514 23513 0 -1 0 209563 0 0 0 6584 416 0 0 25 0 1 0 806638865 630026240 120176 4294967295 134512640 135726644 3221224576 3221197976 135280477 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153815 120176 300 300 0 153515 0
vsize: 615260
[startup+80.0032 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 2876
Raw data (stat): 2876 (pb2sat) R 2875 23514 23513 0 -1 0 229795 0 0 0 7547 453 0 0 25 0 1 0 806638865 657870848 140172 4294967295 134512640 135726644 3221224576 3221167432 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160613 140173 300 300 0 160313 0
vsize: 642452
[startup+90.0033 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 2876
Raw data (stat): 2876 (pb2sat) R 2875 23514 23513 0 -1 0 246659 0 0 0 8514 486 0 0 25 0 1 0 806638865 732409856 156841 4294967295 134512640 135726644 3221224576 3221172492 134604456 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 178811 156841 300 300 0 178511 0
vsize: 715244
[startup+100.007 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 2876
Raw data (stat): 2876 (pb2sat) R 2875 23514 23513 0 -1 0 265294 0 0 0 9480 520 0 0 25 0 1 0 806638865 759951360 175261 4294967295 134512640 135726644 3221224576 3221222740 134541622 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185535 175261 300 300 0 185235 0
vsize: 742140
[startup+104.568 s]
Raw data (loadavg): 0.97 0.94 0.91 1/53 2876
Raw data (stat): 2876 (pb2sat) R 2875 23514 23513 0 -1 0 265294 0 0 0 9480 520 0 0 25 0 1 0 806638865 759951360 175261 4294967295 134512640 135726644 3221224576 3221222740 134541622 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185535 175261 300 300 0 185235 0
vsize: 0

Child status: 1
Real time (s): 104.566
CPU time (s): 104.565
CPU user time (s): 98.9989
CPU system time (s): 5.56615
CPU usage (%): 99.9987
Max. virtual memory (Kb): 742140
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####