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/MIPLIB/miplib2003/normalized-mps-v2-13-7-fiber.opb
MD5SUMd1d488615de0d5a5bcf2a298507e66b1
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 108097879
Optimality of the best value was proved NO
Number of terms in the objective function 1254
Biggest coefficient in the objective function 72966962
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 4807778524
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 72966962
Number of bits of the biggest number in a constraint 27
Biggest sum of numbers in a constraint 4807778524
Number of bits of the biggest sum of numbers33
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark90.9232
Number of variables2134
Total number of constraints1617
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1290
Number of constraints which are nor clauses,nor cardinality constraints327
Minimum length of a constraint1
Maximum length of a constraint51

Trace number 18710 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-04-21 16:26:50 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17528 boxname=wulflinc10 idbench=1349 idsolver=4 numberseed=0
MD5SUM SOLVER: 1540ae3c74fe6bb56fea7dc39e0baf99  /oldhome/oroussel/solvers/galena
MD5SUM BENCH:  d1d488615de0d5a5bcf2a298507e66b1  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-fiber.opb
REAL COMMAND:  galena /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-13-7-fiber.opb
IDLAUNCH: 17528
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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		: 450.999
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:        539300 kB
Buffers:         17212 kB
Cached:         456544 kB
SwapCached:          0 kB
Active:         268692 kB
Inactive:       207616 kB
HighTotal:      131008 kB
HighFree:        11592 kB
LowTotal:       903652 kB
LowFree:        527708 kB
SwapTotal:     2097136 kB
SwapFree:      2096784 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6412 kB
Slab:            13568 kB
Committed_AS:    63484 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-21 16:26:53 (client local time) WITH STATUS 0 IN 0.487925 SECONDS
stats: 17528 7 0.487925 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
galena: LPBLits.cpp:218: bool LPBConstraint::cardcnf_reduction(VariableDB&): Assertion `goal() > 0' failed.
#### 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): 0.88 0.97 0.93 2/54 2332
Raw data (stat): 2332 (runsolver) R 2331 25347 25346 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 488298556 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+0.492861 s]
Raw data (loadavg): 0.88 0.97 0.93 1/53 2332
Raw data (stat): 2332 (runsolver) R 2331 25347 25346 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 488298556 1052672 99 4294967295 134512640 135381576 3221224528 3221219776 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 0

Child ended because it received signal 6 (SIGABRT)
Real time (s): 0.492258
CPU time (s): 0.487925
CPU user time (s): 0.461929
CPU system time (s): 0.025996
CPU usage (%): 99.1198
Max. virtual memory (Kb): 1028
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####