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/miplib2003/normalized-mps-v2-20-10-noswot.opb
MD5SUMce1061a060a0716eafe03a61d610732a
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -41
Optimality of the best value was proved NO
Number of terms in the objective function 425
Biggest coefficient in the objective function 65536
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 3276775
Number of bits of the sum of numbers in the objective function 22
Biggest number in a constraint 41943040000000
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 204183950227182
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark145.757
Number of variables1340
Total number of constraints282
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)75
Number of constraints which are nor clauses,nor cardinality constraints207
Minimum length of a constraint1
Maximum length of a constraint425

Trace number 35209 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-05-28 12:26:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24516 boxname=wulflinc2 idbench=988 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  ce1061a060a0716eafe03a61d610732a  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-noswot.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-noswot.opb
IDLAUNCH: 24516
/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:        721180 kB
Buffers:         37180 kB
Cached:         253720 kB
SwapCached:        820 kB
Active:          23492 kB
Inactive:       269556 kB
HighTotal:      131008 kB
HighFree:        29036 kB
LowTotal:       903652 kB
LowFree:        692144 kB
SwapTotal:     2097136 kB
SwapFree:      2095480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5340 kB
Slab:            14864 kB
Committed_AS:    71780 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:28:17 (client local time) WITH STATUS 1 IN 98.588 SECONDS
stats: 24516 7 98.588 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): 1.05 0.96 0.91 2/54 10421
Raw data (stat): 10421 (runsolver) R 10420 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806575071 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+10.0039 s]
Raw data (loadavg): 1.04 0.96 0.91 2/54 10421
Raw data (stat): 10421 (pb2sat) R 10420 31399 31398 0 -1 0 30243 0 0 0 938 61 0 0 25 0 1 0 806575071 90804224 19243 4294967295 134512640 135726644 3221224576 3221195096 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22169 19243 300 300 0 21869 0
vsize: 88676
[startup+20.0067 s]
Raw data (loadavg): 1.03 0.96 0.91 2/54 10421
Raw data (stat): 10421 (pb2sat) R 10420 31399 31398 0 -1 0 59911 0 0 0 1883 117 0 0 25 0 1 0 806575071 178860032 37665 4294967295 134512640 135726644 3221224576 3221202360 134558005 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43667 37665 300 300 0 43367 0
vsize: 174668
[startup+30.0099 s]
Raw data (loadavg): 1.03 0.96 0.91 2/54 10421
Raw data (stat): 10421 (pb2sat) R 10420 31399 31398 0 -1 0 97562 0 0 0 2810 190 0 0 25 0 1 0 806575071 290803712 53613 4294967295 134512640 135726644 3221224576 3221195804 134556948 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 70997 53613 300 300 0 70697 0
vsize: 283988
[startup+40.0101 s]
Raw data (loadavg): 1.02 0.96 0.91 2/54 10421
Raw data (stat): 10421 (pb2sat) R 10420 31399 31398 0 -1 0 117725 0 0 0 3770 230 0 0 25 0 1 0 806575071 354500608 73519 4294967295 134512640 135726644 3221224576 3221193872 134554704 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 86548 73519 300 300 0 86248 0
vsize: 346192
[startup+50.0159 s]
Raw data (loadavg): 1.02 0.96 0.91 2/54 10421
Raw data (stat): 10421 (pb2sat) R 10420 31399 31398 0 -1 0 157646 0 0 0 4695 306 0 0 25 0 1 0 806575071 487903232 94857 4294967295 134512640 135726644 3221224576 3221193072 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 119117 94857 300 300 0 118817 0
vsize: 476468
[startup+60.016 s]
Raw data (loadavg): 1.02 0.96 0.91 2/54 10421
Raw data (stat): 10421 (pb2sat) R 10420 31399 31398 0 -1 0 194221 0 0 0 5622 379 0 0 25 0 1 0 806575071 588566528 106621 4294967295 134512640 135726644 3221224576 3221193348 135297952 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 143693 106621 300 300 0 143393 0
vsize: 574772
[startup+70.0162 s]
Raw data (loadavg): 1.01 0.96 0.91 2/54 10421
Raw data (stat): 10421 (pb2sat) R 10420 31399 31398 0 -1 0 209951 0 0 0 6594 406 0 0 25 0 1 0 806575071 637259776 122118 4294967295 134512640 135726644 3221224576 3221198384 134558242 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 155581 122118 300 300 0 155281 0
vsize: 622324
[startup+80.0169 s]
Raw data (loadavg): 1.01 0.96 0.91 2/54 10421
Raw data (stat): 10421 (pb2sat) R 10420 31399 31398 0 -1 0 231547 0 0 0 7557 443 0 0 25 0 1 0 806575071 669564928 143444 4294967295 134512640 135726644 3221224576 3221198316 135287606 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163468 143444 300 300 0 163168 0
vsize: 653872
[startup+90.0231 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 10421
Raw data (stat): 10421 (pb2sat) R 10420 31399 31398 0 -1 0 250163 0 0 0 8523 479 0 0 25 0 1 0 806575071 701513728 161831 4294967295 134512640 135726644 3221224576 3221222800 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171268 161831 300 300 0 170968 0
vsize: 685072
[startup+98.6087 s]
Raw data (loadavg): 1.01 0.97 0.91 1/53 10421
Raw data (stat): 10421 (pb2sat) R 10420 31399 31398 0 -1 0 250163 0 0 0 8523 479 0 0 25 0 1 0 806575071 701513728 161831 4294967295 134512640 135726644 3221224576 3221222800 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171268 161831 300 300 0 170968 0
vsize: 0

Child status: 1
Real time (s): 98.6083
CPU time (s): 98.588
CPU user time (s): 93.4668
CPU system time (s): 5.12122
CPU usage (%): 99.9794
Max. virtual memory (Kb): 685072
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####