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-pilotnov.opb
MD5SUM474db7a0368f1f09ef735587d48fb458
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 1260
Biggest coefficient in the objective function 466616320000
Number of bits for the biggest coefficient in the objective function 39
Sum of the numbers in the objective function 19239881147850
Number of bits of the sum of numbers in the objective function 45
Biggest number in a constraint 3067683012608000000
Number of bits of the biggest number in a constraint 62
Biggest sum of numbers in a constraint -6031476375157695016
Number of bits of the biggest sum of numbers64
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.3188
Number of variables37297
Total number of constraints1287
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 constraints1287
Minimum length of a constraint7
Maximum length of a constraint3024

Trace number 41381 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-09 11:23:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29452 boxname=wulflinc1 idbench=1236 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  474db7a0368f1f09ef735587d48fb458  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-pilotnov.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-pilotnov.opb
IDLAUNCH: 29452
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        619000 kB
Buffers:         25404 kB
Cached:         365684 kB
SwapCached:       1136 kB
Active:          30864 kB
Inactive:       362396 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        618748 kB
SwapTotal:     2097136 kB
SwapFree:      2094824 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5260 kB
Slab:            16564 kB
Committed_AS:    92716 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 11:23:45 (client local time) WITH STATUS 0 IN 0.353945 SECONDS
stats: 29452 7 0.353945 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c ERROR Parsing file!!!
c ERROR parsing line: -15625*IENM02_bit_7 -31250*IENM02_bit_6 -62500*IENM02_bit_5 -125000*IENM02_bit_4 -250000*IENM02_bit_3 -500000*IENM02_bit_2 -1000000*IENM02_bit_1 -2000000*IENM02_bit0 -4000000*IENM02_bit1 -8000000*IENM02_bit2 -16000000*IENM02_bit3 -32000000*IENM02_bit4 -64000000*IENM02_bit5 -128000000*IENM02_bit6 -256000000*IENM02_bit7 -512000000*IENM02_bit8 -1024000000*IENM02_bit9 -2048000000*IENM02_bit10 -4096000000*IENM02_bit11 -8192000000*IENM02_bit12 -16384000000*IENM02_bit13 >= -17148195312;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-pilotnov.opb
s UNKNOWN
c Exit Code: 0
c Total time: 0.342 s
#### 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): 0.72 0.83 0.86 2/55 4890
Raw data (stat): 4890 (runsolver) R 4889 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 853031366 884736 94 4294967295 134512640 135332820 3221224448 3221219628 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+0.369729 s]
Raw data (loadavg): 0.72 0.83 0.86 1/54 4890
Raw data (stat): 4890 (runsolver) R 4889 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 853031366 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 0
Real time (s): 0.369431
CPU time (s): 0.353945
CPU user time (s): 0.293955
CPU system time (s): 0.05999
CPU usage (%): 95.8082
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####