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/plato.asu.edu/pub/unibo/normalized-mps-v2-13-7-UMTS.opb
MD5SUM87bf784911047f4cd00952d2cf8f9593
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 33359656
Optimality of the best value was proved NO
Number of terms in the objective function 3666
Biggest coefficient in the objective function 184242176
Number of bits for the biggest coefficient in the objective function 28
Sum of the numbers in the objective function 22915217490
Number of bits of the sum of numbers in the objective function 35
Biggest number in a constraint 128000000000
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 128001048575
Number of bits of the biggest sum of numbers37
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1264.1
Number of variables5178
Total number of constraints7267
Number of constraints which are clauses2785
Number of constraints which are cardinality constraints (but not clauses)4230
Number of constraints which are nor clauses,nor cardinality constraints252
Minimum length of a constraint1
Maximum length of a constraint391

Trace number 41708 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-09 20:42:47 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29779 boxname=wulflinc5 idbench=1563 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  87bf784911047f4cd00952d2cf8f9593  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-UMTS.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-UMTS.opb
IDLAUNCH: 29779
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        874248 kB
Buffers:         12284 kB
Cached:         126972 kB
SwapCached:        620 kB
Active:          26196 kB
Inactive:       115060 kB
HighTotal:      131008 kB
HighFree:         7252 kB
LowTotal:       903652 kB
LowFree:        866996 kB
SwapTotal:     2097136 kB
SwapFree:      2095508 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5076 kB
Slab:            13600 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 20:42:52 (client local time) WITH STATUS 0 IN 4.28335 SECONDS
stats: 29779 7 4.28335 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c ERROR Parsing file!!!
c ERROR parsing line: +128000000000*id2731_bit0 -1*id2743_bit_7 -2*id2743_bit_6 -4*id2743_bit_5 -8*id2743_bit_4 -16*id2743_bit_3 -32*id2743_bit_2 -64*id2743_bit_1 -128*id2743_bit0 -256*id2743_bit1 -512*id2743_bit2 -1024*id2743_bit3 -2048*id2743_bit4 -4096*id2743_bit5 -8192*id2743_bit6 -16384*id2743_bit7 -32768*id2743_bit8 -65536*id2743_bit9 -131072*id2743_bit10 -262144*id2743_bit11 -524288*id2743_bit12 >= +0;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-UMTS.opb
s UNKNOWN
c Exit Code: 0
c Total time: 4.242 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): 0.84 0.94 0.90 1/54 6529
Raw data (stat): 6529 (runsolver) R 6528 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 913243053 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+4.30749 s]
Raw data (loadavg): 0.85 0.94 0.90 1/53 6529
Raw data (stat): 6529 (runsolver) R 6528 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 913243053 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: 0

Child status: 0
Real time (s): 4.30717
CPU time (s): 4.28335
CPU user time (s): 3.80842
CPU system time (s): 0.474927
CPU usage (%): 99.447
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####