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/miplib3/normalized-mps-v2-13-7-swath.opb
MD5SUM02acc3d97c4f8ebb30f6632fa35817fc
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 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 16384000000
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 2012983988447
Number of bits of the biggest sum of numbers41
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.00585
Number of variables8345
Total number of constraints7608
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)7147
Number of constraints which are nor clauses,nor cardinality constraints461
Minimum length of a constraint1
Maximum length of a constraint6744

Trace number 31209 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc28 THE 2005-05-25 23:22:31 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=22640 boxname=wulflinc28 idbench=1456 idsolver=15 numberseed=0
MD5SUM SOLVER: 34d34154b8ad81f02ee98439942e0814  /oldhome/oroussel/solvers/minisat+_script
MD5SUM BENCH:  02acc3d97c4f8ebb30f6632fa35817fc  /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-swath.opb
REAL COMMAND:  minisat+_script /oldhome/oroussel/tmp/wulflinc28/normalized-mps-v2-13-7-swath.opb
IDLAUNCH: 22640
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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	: 3
cpu MHz		: 451.077
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:        807044 kB
Buffers:         30928 kB
Cached:         175248 kB
SwapCached:        748 kB
Active:          26612 kB
Inactive:       181792 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        806792 kB
SwapTotal:     2097640 kB
SwapFree:      2096192 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5444 kB
Slab:            13504 kB
Committed_AS:    63592 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 23:23:20 (client local time) WITH STATUS 139 IN 49.3925 SECONDS
stats: 22640 7 49.3925 139
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
/oldhome/oroussel/solvers/minisat+_script: line 9: 11453 Segmentation fault      $XDIR/minisat+_64-bit_static -try "$@"
#### 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 0.95 0.90 2/54 11449
Raw data (stat): 11449 (runsolver) R 11448 24821 24820 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 842811799 1052672 99 4294967295 134512640 135381576 3221224480 3221219688 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+9.9997 s]
Raw data (loadavg): 0.90 0.95 0.90 2/55 11453
Raw data (stat): 11449 (minisat+_script) S 11448 24821 24820 0 -1 0 274 239 0 0 0 0 0 0 19 0 1 0 842811799 2174976 226 4294967295 134512640 135087896 3221224544 3221223816 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 2124
[startup+20.0008 s]
Raw data (loadavg): 0.91 0.95 0.91 2/55 11453
Raw data (stat): 11449 (minisat+_script) S 11448 24821 24820 0 -1 0 274 239 0 0 0 0 0 0 19 0 1 0 842811799 2174976 226 4294967295 134512640 135087896 3221224544 3221223816 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 2124
[startup+30.0014 s]
Raw data (loadavg): 0.93 0.95 0.91 2/55 11453
Raw data (stat): 11449 (minisat+_script) S 11448 24821 24820 0 -1 0 274 239 0 0 0 0 0 0 19 0 1 0 842811799 2174976 226 4294967295 134512640 135087896 3221224544 3221223816 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 2124
[startup+40.0007 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 11453
Raw data (stat): 11449 (minisat+_script) S 11448 24821 24820 0 -1 0 274 239 0 0 0 0 0 0 19 0 1 0 842811799 2174976 226 4294967295 134512640 135087896 3221224544 3221223816 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 2124
[startup+49.3971 s]
Raw data (loadavg): 0.95 0.95 0.91 1/53 11453
Raw data (stat): 11449 (minisat+_script) S 11448 24821 24820 0 -1 0 274 239 0 0 0 0 0 0 19 0 1 0 842811799 2174976 226 4294967295 134512640 135087896 3221224544 3221223816 1074634510 0 65536 5 65538 3222414538 0 0 17 0 0 0
Raw data (statm): 531 226 485 147 0 384 0
vsize: 0

Child status: 139
Real time (s): 49.3965
CPU time (s): 49.3925
CPU user time (s): 44.3952
CPU system time (s): 4.99724
CPU usage (%): 99.992
Max. virtual memory (Kb): 2124
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####