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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-ganges.opb
MD5SUM8a1a45ee37d518ca6067f6e63fa8146f
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 2309
Biggest coefficient in the objective function 33554432
Number of bits for the biggest coefficient in the objective function 26
Sum of the numbers in the objective function 884998035
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 5368709120000
Number of bits of the biggest number in a constraint 43
Biggest sum of numbers in a constraint 32257203788492
Number of bits of the biggest sum of numbers45
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.61076
Number of variables46097
Total number of constraints1706
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 constraints1706
Minimum length of a constraint13
Maximum length of a constraint1432

Trace number 35049 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc9 THE 2005-05-28 12:06:50 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24363 boxname=wulflinc9 idbench=835 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8a1a45ee37d518ca6067f6e63fa8146f  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ganges.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ganges.opb
IDLAUNCH: 24363
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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		: 451.242
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:        710600 kB
Buffers:         35232 kB
Cached:         264436 kB
SwapCached:        552 kB
Active:          21308 kB
Inactive:       280348 kB
HighTotal:      131008 kB
HighFree:        17108 kB
LowTotal:       903652 kB
LowFree:        693492 kB
SwapTotal:     2097136 kB
SwapFree:      2095648 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5144 kB
Slab:            16544 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:08:27 (client local time) WITH STATUS 1 IN 96.1694 SECONDS
stats: 24363 7 96.1694 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 0.93 0.90 2/54 18152
Raw data (stat): 18152 (runsolver) R 18151 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806451893 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+10.001 s]
Raw data (loadavg): 0.91 0.94 0.91 2/54 18152
Raw data (stat): 18152 (pb2sat) R 18151 3944 3943 0 -1 0 30809 0 0 0 927 72 0 0 25 0 1 0 806451893 91320320 19856 4294967295 134512640 135726644 3221224576 3220948152 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22295 19856 300 300 0 21995 0
vsize: 89180
[startup+20.0024 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 18152
Raw data (stat): 18152 (pb2sat) R 18151 3944 3943 0 -1 0 56927 0 0 0 1867 132 0 0 25 0 1 0 806451893 167038976 34999 4294967295 134512640 135726644 3221224576 3221221776 134576531 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 40781 34999 300 300 0 40481 0
vsize: 163124
[startup+30.0063 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 18152
Raw data (stat): 18152 (pb2sat) R 18151 3944 3943 0 -1 0 92446 0 0 0 2789 209 0 0 25 0 1 0 806451893 302526464 48811 4294967295 134512640 135726644 3221224576 3221221520 134541140 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73859 48811 300 300 0 73559 0
vsize: 295436
[startup+40.0087 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 18152
Raw data (stat): 18152 (pb2sat) R 18151 3944 3943 0 -1 0 110126 0 0 0 3746 252 0 0 25 0 1 0 806451893 311717888 66180 4294967295 134512640 135726644 3221224576 3221207772 134766454 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 76103 66182 300 300 0 75803 0
vsize: 304412
[startup+50.009 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 18152
Raw data (stat): 18152 (pb2sat) R 18151 3944 3943 0 -1 0 148149 0 0 0 4676 322 0 0 25 0 1 0 806451893 431144960 85610 4294967295 134512640 135726644 3221224576 3221210296 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 105260 85611 300 300 0 104960 0
vsize: 421040
[startup+60.0096 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 18152
Raw data (stat): 18152 (pb2sat) R 18151 3944 3943 0 -1 0 184588 0 0 0 5593 405 0 0 25 0 1 0 806451893 565362688 97236 4294967295 134512640 135726644 3221224576 3221203344 134780348 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138028 97236 300 300 0 137728 0
vsize: 552112
[startup+70.0102 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 18152
Raw data (stat): 18152 (pb2sat) R 18151 3944 3943 0 -1 0 196859 0 0 0 6567 431 0 0 25 0 1 0 806451893 565362688 109268 4294967295 134512640 135726644 3221224576 3221200696 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 138028 109268 300 300 0 137728 0
vsize: 552112
[startup+80.0103 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 18152
Raw data (stat): 18152 (pb2sat) R 18151 3944 3943 0 -1 0 214767 0 0 0 7530 467 0 0 25 0 1 0 806451893 581730304 126906 4294967295 134512640 135726644 3221224576 3221193808 134767085 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 142024 126906 300 300 0 141724 0
vsize: 568096
[startup+90.0107 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 18152
Raw data (stat): 18152 (pb2sat) R 18151 3944 3943 0 -1 0 236349 0 0 0 8487 510 0 0 25 0 1 0 806451893 641622016 138426 4294967295 134512640 135726644 3221224576 3221223040 134732753 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156646 138426 300 300 0 156346 0
vsize: 626584
[startup+96.1962 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 18152
Raw data (stat): 18152 (pb2sat) R 18151 3944 3943 0 -1 0 236349 0 0 0 8487 510 0 0 25 0 1 0 806451893 641622016 138426 4294967295 134512640 135726644 3221224576 3221223040 134732753 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156646 138426 300 300 0 156346 0
vsize: 0

Child status: 1
Real time (s): 96.196
CPU time (s): 96.1694
CPU user time (s): 90.7852
CPU system time (s): 5.38418
CPU usage (%): 99.9723
Max. virtual memory (Kb): 626584
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####