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/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-seymour1.opb
MD5SUM31b217e2e29235a8785a3af88a4b2ba1
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 513536
Optimality of the best value was proved NO
Number of terms in the objective function 10582
Biggest coefficient in the objective function 1024
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 2347111
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 1024
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 2347111
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.14
Number of variables10582
Total number of constraints6316
Number of constraints which are clauses651
Number of constraints which are cardinality constraints (but not clauses)451
Number of constraints which are nor clauses,nor cardinality constraints5214
Minimum length of a constraint1
Maximum length of a constraint198

Trace number 35363 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-05-28 12:59:59 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24668 boxname=wulflinc2 idbench=1140 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  31b217e2e29235a8785a3af88a4b2ba1  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-seymour1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-seymour1.opb
IDLAUNCH: 24668
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        667224 kB
Buffers:         37316 kB
Cached:         306760 kB
SwapCached:        820 kB
Active:          30432 kB
Inactive:       315888 kB
HighTotal:      131008 kB
HighFree:         1680 kB
LowTotal:       903652 kB
LowFree:        665544 kB
SwapTotal:     2097136 kB
SwapFree:      2095480 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5340 kB
Slab:            15412 kB
Committed_AS:    71788 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:01:52 (client local time) WITH STATUS 1 IN 112.931 SECONDS
stats: 24668 7 112.931 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): 0.95 0.93 0.91 1/54 11164
Raw data (stat): 11164 (runsolver) R 11163 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806775198 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+10.0018 s]
Raw data (loadavg): 0.96 0.94 0.91 3/57 11203
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 26984 0 0 0 943 56 0 0 25 0 1 0 806775198 89325568 15889 4294967295 134512640 135726644 3221224576 3217332552 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21808 15889 300 300 0 21508 0
vsize: 87232
[startup+20.0024 s]
Raw data (loadavg): 1.04 0.95 0.91 2/54 11217
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 55756 0 0 0 1883 116 0 0 25 0 1 0 806775198 175587328 33701 4294967295 134512640 135726644 3221224576 3217170952 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42868 33702 300 300 0 42568 0
vsize: 171472
[startup+30.0035 s]
Raw data (loadavg): 1.03 0.95 0.91 2/54 11217
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 96980 0 0 0 2799 201 0 0 25 0 1 0 806775198 302661632 53246 4294967295 134512640 135726644 3221224576 3217351328 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73892 53246 300 300 0 73592 0
vsize: 295568
[startup+40.0038 s]
Raw data (loadavg): 1.03 0.96 0.91 2/54 11217
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 112528 0 0 0 3765 235 0 0 25 0 1 0 806775198 347164672 68564 4294967295 134512640 135726644 3221224576 3217829416 134603715 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84757 68564 300 300 0 84457 0
vsize: 339028
[startup+50.0035 s]
Raw data (loadavg): 1.02 0.96 0.91 2/54 11217
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 132866 0 0 0 4719 281 0 0 25 0 1 0 806775198 376225792 88666 4294967295 134512640 135726644 3221224576 3217898152 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 91852 88669 300 300 0 91552 0
vsize: 367408
[startup+60.0038 s]
Raw data (loadavg): 1.02 0.96 0.91 2/54 11217
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 194033 0 0 0 5601 399 0 0 25 0 1 0 806775198 598745088 106719 4294967295 134512640 135726644 3221224576 3217710120 134554778 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146178 106719 300 300 0 145878 0
vsize: 584712
[startup+70.0039 s]
Raw data (loadavg): 1.02 0.96 0.91 2/54 11217
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 205938 0 0 0 6572 428 0 0 25 0 1 0 806775198 632299520 118412 4294967295 134512640 135726644 3221224576 3217383264 134767136 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154370 118412 300 300 0 154070 0
vsize: 617480
[startup+80.0046 s]
Raw data (loadavg): 1.01 0.96 0.91 2/54 11219
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 224368 0 0 0 7531 470 0 0 25 0 1 0 806775198 654196736 136608 4294967295 134512640 135726644 3221224576 3217749832 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159716 136608 300 300 0 159416 0
vsize: 638864
[startup+90.005 s]
Raw data (loadavg): 1.01 0.96 0.91 2/54 11219
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 241971 0 0 0 8494 507 0 0 25 0 1 0 806775198 729939968 154006 4294967295 134512640 135726644 3221224576 3217486800 134780450 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 178208 154006 300 300 0 177908 0
vsize: 712832
[startup+100.005 s]
Raw data (loadavg): 1.01 0.96 0.91 2/54 11219
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 260373 0 0 0 9452 549 0 0 25 0 1 0 806775198 756297728 172195 4294967295 134512640 135726644 3221224576 3217858264 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184643 172196 300 300 0 184343 0
vsize: 738572
[startup+110.006 s]
Raw data (loadavg): 1.01 0.96 0.91 2/54 11219
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 265691 0 0 0 10438 562 0 0 25 0 1 0 806775198 764649472 177410 4294967295 134512640 135726644 3221224576 3221222828 135277617 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186682 177410 300 300 0 186382 0
vsize: 746728
[startup+112.925 s]
Raw data (loadavg): 1.01 0.96 0.91 1/53 11219
Raw data (stat): 11164 (pb2sat) R 11163 31399 31398 0 -1 0 265691 0 0 0 10438 562 0 0 25 0 1 0 806775198 764649472 177410 4294967295 134512640 135726644 3221224576 3221222828 135277617 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186682 177410 300 300 0 186382 0
vsize: 0

Child status: 1
Real time (s): 112.924
CPU time (s): 112.931
CPU user time (s): 106.94
CPU system time (s): 5.99109
CPU usage (%): 100.006
Max. virtual memory (Kb): 746728
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####