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-p0291.opb
MD5SUM1d9168a9335e29df835d07b0bdf2adea
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 10447498
Optimality of the best value was proved NO
Number of terms in the objective function 289
Biggest coefficient in the objective function 80000000
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 686518451
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 80000000
Number of bits of the biggest number in a constraint 27
Biggest sum of numbers in a constraint 686518451
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.335948
Number of variables291
Total number of constraints543
Number of constraints which are clauses189
Number of constraints which are cardinality constraints (but not clauses)295
Number of constraints which are nor clauses,nor cardinality constraints59
Minimum length of a constraint1
Maximum length of a constraint53

Trace number 35166 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc11 THE 2005-05-28 12:20:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24463 boxname=wulflinc11 idbench=935 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1d9168a9335e29df835d07b0bdf2adea  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-p0291.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-p0291.opb
IDLAUNCH: 24463
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.028
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		: 451.028
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:        918428 kB
Buffers:         34960 kB
Cached:          59720 kB
SwapCached:        860 kB
Active:          46944 kB
Inactive:        49876 kB
HighTotal:      131008 kB
HighFree:        68292 kB
LowTotal:       903652 kB
LowFree:        850136 kB
SwapTotal:     2097136 kB
SwapFree:      2095396 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5072 kB
Slab:            13836 kB
Committed_AS:    63592 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:22:19 (client local time) WITH STATUS 1 IN 112.172 SECONDS
stats: 24463 7 112.172 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
Raw data (loadavg): 0.90 0.95 0.90 2/54 2866
Raw data (stat): 2866 (runsolver) R 2865 25830 25829 0 -1 64 0 0 0 0 0 0 0 0 19 0 1 0 806530642 884736 93 4294967295 134512640 135332820 3221224464 3221219872 134515228 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 864
Current StackSize limit: 67108864 bytes
[startup+10.0002 s]
Raw data (loadavg): 0.92 0.95 0.90 2/54 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 29177 0 0 0 937 61 0 0 25 0 1 0 806530642 89366528 18042 4294967295 134512640 135726644 3221224576 3221111832 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21818 18043 300 300 0 21518 0
vsize: 87272
[startup+20.0006 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 57556 0 0 0 1884 115 0 0 25 0 1 0 806530642 175730688 35205 4294967295 134512640 135726644 3221224576 3221123280 134783032 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42903 35206 300 300 0 42603 0
vsize: 171612
[startup+30.0011 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 97100 0 0 0 2808 191 0 0 25 0 1 0 806530642 297889792 52560 4294967295 134512640 135726644 3221224576 3221109680 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72727 52560 300 300 0 72427 0
vsize: 290908
[startup+40.0012 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 113228 0 0 0 3776 223 0 0 25 0 1 0 806530642 346861568 68461 4294967295 134512640 135726644 3221224576 3221114952 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84683 68462 300 300 0 84383 0
vsize: 338732
[startup+50.0027 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 146636 0 0 0 4714 286 0 0 25 0 1 0 806530642 541167616 101132 4294967295 134512640 135726644 3221224576 3221127560 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 132121 101134 300 300 0 131821 0
vsize: 528484
[startup+60.0024 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 192423 0 0 0 5623 377 0 0 25 0 1 0 806530642 594452480 103296 4294967295 134512640 135726644 3221224576 3221120404 135105744 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145130 103297 300 300 0 144830 0
vsize: 580520
[startup+70.0039 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 203346 0 0 0 6602 398 0 0 25 0 1 0 806530642 628006912 114022 4294967295 134512640 135726644 3221224576 3221116000 135105730 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153322 114023 300 300 0 153022 0
vsize: 613288
[startup+80.0043 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 221216 0 0 0 7570 430 0 0 25 0 1 0 806530642 649822208 131669 4294967295 134512640 135726644 3221224576 3221124632 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158648 131669 300 300 0 158348 0
vsize: 634592
[startup+90.0038 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 241468 0 0 0 8532 468 0 0 25 0 1 0 806530642 679370752 151684 4294967295 134512640 135726644 3221224576 3221122864 134767231 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 165862 151684 300 300 0 165562 0
vsize: 663448
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 258704 0 0 0 9501 500 0 0 25 0 1 0 806530642 755294208 168714 4294967295 134512640 135726644 3221224576 3221117664 134767234 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184398 168714 300 300 0 184098 0
vsize: 737592
[startup+110.005 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 262342 0 0 0 10478 522 0 0 25 0 1 0 806530642 400891904 97385 4294967295 134512640 135726644 3221224576 3221222832 135279084 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97874 97385 300 300 0 97574 0
vsize: 391496
[startup+112.166 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 2866
Raw data (stat): 2866 (pb2sat) R 2865 25830 25829 0 -1 0 262342 0 0 0 10478 522 0 0 25 0 1 0 806530642 400891904 97385 4294967295 134512640 135726644 3221224576 3221222832 135279084 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97874 97385 300 300 0 97574 0
vsize: 0

Child status: 1
Real time (s): 112.166
CPU time (s): 112.172
CPU user time (s): 106.74
CPU system time (s): 5.43217
CPU usage (%): 100.006
Max. virtual memory (Kb): 737592
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####