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-momentum3.opb
MD5SUMfd20bcfe4a71405dc1e0ef3cb894b630
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 87370
Biggest coefficient in the objective function 1310720000
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 13573186735
Number of bits of the sum of numbers in the objective function 34
Biggest number in a constraint 10240000000000000927712935936
Number of bits of the biggest number in a constraint 94
Biggest sum of numbers in a constraint 29801266744107043904416645120
Number of bits of the biggest sum of numbers95
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.893863
Number of variables93400
Total number of constraints70153
Number of constraints which are clauses6081
Number of constraints which are cardinality constraints (but not clauses)7185
Number of constraints which are nor clauses,nor cardinality constraints56887
Minimum length of a constraint1
Maximum length of a constraint1018

Trace number 16604 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-04-21 08:19:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=12776 boxname=wulflinc4 idbench=983 idsolver=10 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  fd20bcfe4a71405dc1e0ef3cb894b630  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-momentum3.opb
REAL COMMAND:  minisat+ -ca /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-momentum3.opb /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-momentum3.opb
IDLAUNCH: 12776
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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:          7468 kB
Buffers:         28704 kB
Cached:         974908 kB
SwapCached:          0 kB
Active:         353336 kB
Inactive:       653004 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:          7216 kB
SwapTotal:     2097136 kB
SwapFree:      2096992 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           6816 kB
Slab:            15172 kB
Committed_AS:    71676 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 08:19:38 (client local time) WITH STATUS 1 IN 0.554915 SECONDS
stats: 12776 7 0.554915 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
ERROR! Too large constants encountered in constraint.
c Parsing PB file...
#### 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
Raw data (loadavg): 0.99 0.98 0.94 2/54 4224
Raw data (stat): 4224 (runsolver) R 4223 5897 5896 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 485362125 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+0.610713 s]
Raw data (loadavg): 0.99 0.98 0.94 1/53 4224
Raw data (stat): 4224 (runsolver) R 4223 5897 5896 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 485362125 1052672 99 4294967295 134512640 135381576 3221224432 3221219676 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child status: 1
Real time (s): 0.610376
CPU time (s): 0.554915
CPU user time (s): 0.45793
CPU system time (s): 0.096985
CPU usage (%): 90.9136
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####