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/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-scagr25.opb
MD5SUM8212b7d88cb773988540e2678fb656aa
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 9500
Biggest coefficient in the objective function 34707865600
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 4559151671250
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 34707865600
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 4559151671250
Number of bits of the biggest sum of numbers43
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.087985
Number of variables10000
Total number of constraints471
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints471
Minimum length of a constraint20
Maximum length of a constraint200

Trace number 29828 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc18 THE 2005-05-25 12:16:22 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=21257 boxname=wulflinc18 idbench=1245 idsolver=14 numberseed=0
MD5SUM SOLVER: d29da23ec752be69e0579424c0f0767e  /oldhome/oroussel/solvers/sat4jPseudoBis.jar
MD5SUM BENCH:  8212b7d88cb773988540e2678fb656aa  /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-scagr25.opb
REAL COMMAND:  java -server -Xms650M -Xmx650M -jar /oldhome/oroussel/solvers/sat4jPseudoBis.jar /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-scagr25.opb
IDLAUNCH: 21257
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.177
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		: 451.177
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:        762648 kB
Buffers:         36672 kB
Cached:         207132 kB
SwapCached:        588 kB
Active:          60472 kB
Inactive:       188728 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        762396 kB
SwapTotal:     2097892 kB
SwapFree:      2096632 kB
Dirty:              40 kB
Writeback:           0 kB
Mapped:           5664 kB
Slab:            17192 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-25 12:17:00 (client local time) WITH STATUS 20 IN 42.0926 SECONDS
stats: 21257 7 42.0926 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c SAT4J: a SATisfiability library for Java (c) 2004-2005 Daniel Le Berre
c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
c version Special PB05 Second trial
c --- Begin Solver configuration ---
c org.sat4j.minisat.uip.FirstUIP@1e4cbc4
c org.sat4j.minisat.constraints.PBMinDataStructure@1fdc96c
c org.sat4j.minisat.learning.MiniSATLearning@b2fd8f
c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=0.5 initConflictBound=100 
c 
c --- End Solver configuration ---
c solving /oldhome/oroussel/tmp/wulflinc18/normalized-mps-v2-13-7-scagr25.opb
c reading problem ... done. Time 35.821 ms.
c #vars     10000
c #constraints  771
c starts	: 0
c conflicts	: 0
c decisions	: 0
c propagations	: 959
c inspects	: 1661
c learned literals	: 0
c learned binary clauses	: 0
c learned ternary clauses	: 0
c learned clauses	: 0
c root simplifications	: 0
s UNSATISFIABLE
c Total CPU time (ms) : 36.283
#### 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): 0.85 0.97 0.99 2/54 1055
Raw data (stat): 1055 (runsolver) R 1054 24172 24171 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 838793967 1052672 99 4294967295 134512640 135381576 3221224400 3221219620 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+10.0011 s]
Raw data (loadavg): 0.87 0.97 0.99 2/63 1064
Raw data (stat): 1055 (java) R 1054 24172 24171 0 -1 0 18009 0 1 0 874 39 0 0 25 0 10 0 838793967 853504000 19283 4294967295 134512640 134569956 3221224368 3221214644 1080204163 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 208375 19283 13086 16 0 208359 0
vsize: 833500
[startup+20.0029 s]
Raw data (loadavg): 0.89 0.97 0.99 2/63 1064
Raw data (stat): 1055 (java) R 1054 24172 24171 0 -1 0 18010 0 1 0 1774 39 0 0 25 0 10 0 838793967 854302720 19963 4294967295 134512640 134569956 3221224368 3221214344 1079276148 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 208570 19963 13086 16 0 208554 0
vsize: 834280
[startup+30.0035 s]
Raw data (loadavg): 0.91 0.97 0.99 2/63 1064
Raw data (stat): 1055 (java) R 1054 24172 24171 0 -1 0 18010 0 1 0 2663 39 0 0 25 0 10 0 838793967 854269952 20466 4294967295 134512640 134569956 3221224368 3221214344 1079276148 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 208562 20466 13086 16 0 208546 0
vsize: 834248
[startup+37.2633 s]
Raw data (loadavg): 0.92 0.97 0.99 1/53 1065
Raw data (stat): 1055 (java) R 1054 24172 24171 0 -1 0 18010 0 1 0 2663 39 0 0 25 0 10 0 838793967 854269952 20466 4294967295 134512640 134569956 3221224368 3221214344 1079276148 0 4 3 23756 0 0 0 17 1 0 0
Raw data (statm): 208562 20466 13086 16 0 208546 0
vsize: 0

Child status: 20
Real time (s): 37.263
CPU time (s): 42.0926
CPU user time (s): 41.4717
CPU system time (s): 0.620905
CPU usage (%): 112.961
Max. virtual memory (Kb): 834280
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####