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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-scfxm1.opb
MD5SUM9724b70be00612c57ff3bed741e4e1b9
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 460
Biggest coefficient in the objective function 5242880
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 137363325
Number of bits of the sum of numbers in the objective function 28
Biggest number in a constraint 52428800000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 319170501375
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.357944
Number of variables9140
Total number of constraints330
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints330
Minimum length of a constraint20
Maximum length of a constraint1140

Trace number 35475 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc28 THE 2005-05-28 13:17:03 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24775 boxname=wulflinc28 idbench=1247 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9724b70be00612c57ff3bed741e4e1b9  /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-scfxm1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-scfxm1.opb
IDLAUNCH: 24775
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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	: 3
cpu MHz		: 451.077
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:        703340 kB
Buffers:         40468 kB
Cached:         249112 kB
SwapCached:        780 kB
Active:          27700 kB
Inactive:       281984 kB
HighTotal:      131008 kB
HighFree:         3528 kB
LowTotal:       903652 kB
LowFree:        699812 kB
SwapTotal:     2097640 kB
SwapFree:      2096164 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5460 kB
Slab:            15912 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:18:51 (client local time) WITH STATUS 1 IN 108.239 SECONDS
stats: 24775 7 108.239 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): 0.90 0.92 0.90 2/54 7314
Raw data (stat): 7314 (runsolver) R 7313 24821 24820 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865102168 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+10.0005 s]
Raw data (loadavg): 0.92 0.92 0.91 2/54 7314
Raw data (stat): 7314 (pb2sat) R 7313 24821 24820 0 -1 0 29154 0 0 0 940 59 0 0 25 0 1 0 865102168 86843392 18203 4294967295 134512640 135726644 3221224576 3221107008 134766943 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21202 18203 300 300 0 20902 0
vsize: 84808
[startup+20.0012 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 7314
Raw data (stat): 7314 (pb2sat) R 7313 24821 24820 0 -1 0 57195 0 0 0 1885 114 0 0 25 0 1 0 865102168 172703744 35288 4294967295 134512640 135726644 3221224576 3221109872 134554549 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42164 35288 300 300 0 41864 0
vsize: 168656
[startup+30.0019 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 7314
Raw data (stat): 7314 (pb2sat) R 7313 24821 24820 0 -1 0 96482 0 0 0 2809 190 0 0 25 0 1 0 865102168 296558592 52905 4294967295 134512640 135726644 3221224576 3221114148 135101152 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72402 52905 300 300 0 72102 0
vsize: 289608
[startup+40.0019 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 7314
Raw data (stat): 7314 (pb2sat) R 7313 24821 24820 0 -1 0 111932 0 0 0 3777 223 0 0 25 0 1 0 865102168 342413312 68131 4294967295 134512640 135726644 3221224576 3221114648 135337995 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83597 68131 300 300 0 83297 0
vsize: 334388
[startup+50.0023 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 7314
Raw data (stat): 7314 (pb2sat) R 7313 24821 24820 0 -1 0 141611 0 0 0 4719 280 0 0 25 0 1 0 865102168 529797120 97209 4294967295 134512640 135726644 3221224576 3221119104 134771705 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 129345 97209 300 300 0 129045 0
vsize: 517380
[startup+60.0019 s]
Raw data (loadavg): 0.96 0.93 0.91 2/54 7314
Raw data (stat): 7314 (pb2sat) R 7313 24821 24820 0 -1 0 191614 0 0 0 5619 380 0 0 25 0 1 0 865102168 591597568 103459 4294967295 134512640 135726644 3221224576 3221117724 135287487 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144433 103459 300 300 0 144133 0
vsize: 577732
[startup+70.0033 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 7314
Raw data (stat): 7314 (pb2sat) R 7313 24821 24820 0 -1 0 202811 0 0 0 6597 403 0 0 25 0 1 0 865102168 625152000 114455 4294967295 134512640 135726644 3221224576 3221119836 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152625 114455 300 300 0 152325 0
vsize: 610500
[startup+80.0033 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 7314
Raw data (stat): 7314 (pb2sat) R 7313 24821 24820 0 -1 0 220478 0 0 0 7566 434 0 0 25 0 1 0 865102168 644759552 131893 4294967295 134512640 135726644 3221224576 3221123456 134554627 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157412 131893 300 300 0 157112 0
vsize: 629648
[startup+90.003 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 7314
Raw data (stat): 7314 (pb2sat) R 7313 24821 24820 0 -1 0 240471 0 0 0 8530 470 0 0 25 0 1 0 865102168 673562624 151654 4294967295 134512640 135726644 3221224576 3221124940 135298010 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 164444 151654 300 300 0 164144 0
vsize: 657776
[startup+100.003 s]
Raw data (loadavg): 0.98 0.94 0.91 2/54 7314
Raw data (stat): 7314 (pb2sat) R 7313 24821 24820 0 -1 0 256652 0 0 0 9500 501 0 0 25 0 1 0 865102168 747143168 167646 4294967295 134512640 135726644 3221224576 3221130748 134634291 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 182408 167646 300 300 0 182108 0
vsize: 729632
[startup+108.231 s]
Raw data (loadavg): 0.98 0.94 0.91 1/53 7314
Raw data (stat): 7314 (pb2sat) R 7313 24821 24820 0 -1 0 256652 0 0 0 9500 501 0 0 25 0 1 0 865102168 747143168 167646 4294967295 134512640 135726644 3221224576 3221130748 134634291 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 182408 167646 300 300 0 182108 0
vsize: 0

Child status: 1
Real time (s): 108.23
CPU time (s): 108.239
CPU user time (s): 102.745
CPU system time (s): 5.49316
CPU usage (%): 100.008
Max. virtual memory (Kb): 729632
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####