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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-dc1l.opb
MD5SUM4d1c8086316d85cb5ef2a3148b52a8a1
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 85408
Biggest coefficient in the objective function 536870912000000000000
Number of bits for the biggest coefficient in the objective function 69
Sum of the numbers in the objective function 6807849934732110331904
Number of bits of the sum of numbers in the objective function 73
Biggest number in a constraint 536870912000000000000
Number of bits of the biggest number in a constraint 69
Biggest sum of numbers in a constraint 6807849934732110331904
Number of bits of the biggest sum of numbers73
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.91486
Number of variables85198
Total number of constraints37291
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)35639
Number of constraints which are nor clauses,nor cardinality constraints1652
Minimum length of a constraint1
Maximum length of a constraint35129

Trace number 38962 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-02 19:27:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=27033 boxname=wulflinc1 idbench=1161 idsolver=19 numberseed=0
MD5SUM SOLVER: 259c660e62244fe20bfb2a303545faea  /oldhome/oroussel/solvers/Pueblo-v2
MD5SUM BENCH:  4d1c8086316d85cb5ef2a3148b52a8a1  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-dc1l.opb
REAL COMMAND:  Pueblo-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-dc1l.opb
IDLAUNCH: 27033
/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:        429132 kB
Buffers:         28408 kB
Cached:         552052 kB
SwapCached:        668 kB
Active:          44452 kB
Inactive:       538252 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        428880 kB
SwapTotal:     2097136 kB
SwapFree:      2095384 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5824 kB
Slab:            16996 kB
Committed_AS:    92684 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-02 19:27:18 (client local time) WITH STATUS 0 IN 1.67974 SECONDS
stats: 27033 7 1.67974 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Pueblo version 1.2 (Sept 2004)
c Developed @ University of Michigan, Ann Arbor, MI
c  by Hossein Sheini
c /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-dc1l.opb:37301: numeric constant `1075720192000' out of range (2147483647)
s UNKNOWN
#### 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): 0.61 0.80 0.85 1/55 12649
Raw data (stat): 12649 (runsolver) R 12648 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 795445079 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+1.68508 s]
Raw data (loadavg): 0.61 0.80 0.85 1/54 12649
Raw data (stat): 12649 (runsolver) R 12648 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 795445079 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: 0

Child status: 0
Real time (s): 1.6848
CPU time (s): 1.67974
CPU user time (s): 1.63875
CPU system time (s): 0.040993
CPU usage (%): 99.6997
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####