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/plato.asu.edu/pub/unibo/normalized-mps-v2-13-7-van.opb
MD5SUM63aca17b11625a83c7613ee93b3a2e23
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 192
Biggest coefficient in the objective function 2427002644
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 319999999936
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 28349428224
Number of bits of the biggest number in a constraint 35
Biggest sum of numbers in a constraint 319999999936
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark139.971
Number of variables98496
Total number of constraints39811
Number of constraints which are clauses128
Number of constraints which are cardinality constraints (but not clauses)195
Number of constraints which are nor clauses,nor cardinality constraints39488
Minimum length of a constraint1
Maximum length of a constraint361

Trace number 14117 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-04-20 23:13:57 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=20338 boxname=wulflinc1 idbench=1565 idsolver=6 numberseed=0
MD5SUM SOLVER: 2225cba0d9b2c30e235f6cafc823d7ac  /oldhome/oroussel/solvers/PBS4
MD5SUM BENCH:  63aca17b11625a83c7613ee93b3a2e23  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-van.opb
REAL COMMAND:  PBS4 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-van.opb
IDLAUNCH: 20338
/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:        559764 kB
Buffers:         20892 kB
Cached:         426004 kB
SwapCached:          0 kB
Active:         210528 kB
Inactive:       239516 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        559512 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           7220 kB
Slab:            18904 kB
Committed_AS:    92820 kB
PageTables:        344 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-20 23:16:21 (client local time) WITH STATUS 20 IN 139.971 SECONDS
stats: 20338 7 139.971 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c PBS v4 by Bashar Al-Rawi & Fadi Aloul
c Solving /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-van.opb ......
s UNSATISFIABLE
c Done, CPU Time=0.280957
#### 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): 1.00 0.96 0.91 2/56 15818
Raw data (stat): 15818 (runsolver) R 15817 12452 12451 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 425237487 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+9.99961 s]
Raw data (loadavg): 1.00 0.96 0.91 2/56 15818
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 6668 0 0 0 977 22 0 0 25 0 1 0 425237487 27967488 6408 4294967295 134512640 135450300 3221224640 3221157392 134863903 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6828 6408 231 231 0 6597 0
vsize: 27312
[startup+20.0004 s]
Raw data (loadavg): 1.00 0.96 0.91 2/56 15818
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 8103 0 0 0 1969 30 0 0 25 0 1 0 425237487 34058240 7843 4294967295 134512640 135450300 3221224640 3221157568 134846922 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8315 7843 231 231 0 8084 0
vsize: 33260
[startup+30.0001 s]
Raw data (loadavg): 1.00 0.96 0.91 2/56 15818
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 9440 0 0 0 2959 40 0 0 25 0 1 0 425237487 39145472 9180 4294967295 134512640 135450300 3221224640 3221157376 134855169 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9557 9180 231 231 0 9326 0
vsize: 38228
[startup+39.9999 s]
Raw data (loadavg): 1.00 0.96 0.91 2/56 15818
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 10855 0 0 0 3949 50 0 0 25 0 1 0 425237487 45387776 10595 4294967295 134512640 135450300 3221224640 3221157440 134598676 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 11081 10595 231 231 0 10850 0
vsize: 44324
[startup+50.0197 s]
Raw data (loadavg): 1.00 0.96 0.91 2/56 15818
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 12171 0 0 0 4942 59 0 0 25 0 1 0 425237487 49889280 11911 4294967295 134512640 135450300 3221224640 3221157376 134855169 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 12180 11911 231 231 0 11949 0
vsize: 48720
[startup+60.02 s]
Raw data (loadavg): 1.00 0.96 0.91 2/56 15818
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 17154 0 0 0 5925 76 0 0 25 0 1 0 425237487 71462912 16685 4294967295 134512640 135450300 3221224640 3221157440 134599693 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 17447 16685 231 231 0 17216 0
vsize: 69788
[startup+70.0203 s]
Raw data (loadavg): 1.00 0.97 0.91 2/56 15820
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 17164 0 0 0 6919 83 0 0 25 0 1 0 425237487 71462912 16695 4294967295 134512640 135450300 3221224640 3221157504 134515788 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 17447 16695 231 231 0 17216 0
vsize: 69788
[startup+80.0211 s]
Raw data (loadavg): 1.00 0.97 0.91 2/56 15820
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 17174 0 0 0 7912 89 0 0 25 0 1 0 425237487 71462912 16705 4294967295 134512640 135450300 3221224640 3221157360 134523757 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 17447 16705 231 231 0 17216 0
vsize: 69788
[startup+90.0208 s]
Raw data (loadavg): 1.00 0.97 0.91 2/56 15820
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 18245 0 0 0 8904 97 0 0 25 0 1 0 425237487 75788288 17776 4294967295 134512640 135450300 3221224640 3221157440 134598590 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 18503 17776 231 231 0 18272 0
vsize: 74012
[startup+100.021 s]
Raw data (loadavg): 1.00 0.97 0.91 2/56 15820
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 19386 0 0 0 9898 104 0 0 25 0 1 0 425237487 80388096 18917 4294967295 134512640 135450300 3221224640 3221157236 134524043 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 19626 18917 231 231 0 19395 0
vsize: 78504
[startup+110.026 s]
Raw data (loadavg): 1.00 0.97 0.91 2/56 15820
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 20525 0 0 0 10889 114 0 0 25 0 1 0 425237487 84987904 20056 4294967295 134512640 135450300 3221224640 3221157600 134674684 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 20749 20056 231 231 0 20518 0
vsize: 82996
[startup+120.028 s]
Raw data (loadavg): 1.00 0.97 0.91 2/56 15820
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 21645 0 0 0 11881 122 0 0 25 0 1 0 425237487 89448448 21176 4294967295 134512640 135450300 3221224640 3221157376 134855106 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 21838 21176 231 231 0 21607 0
vsize: 87352
[startup+130.028 s]
Raw data (loadavg): 1.00 0.97 0.91 2/56 15820
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 22790 0 0 0 12872 131 0 0 25 0 1 0 425237487 94044160 22321 4294967295 134512640 135450300 3221224640 3221157360 134523701 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 22960 22321 231 231 0 22729 0
vsize: 91840
[startup+139.958 s]
Raw data (loadavg): 1.00 0.97 0.91 1/55 15820
Raw data (stat): 15818 (PBS4) R 15817 12452 12451 0 -1 0 22790 0 0 0 12872 131 0 0 25 0 1 0 425237487 94044160 22321 4294967295 134512640 135450300 3221224640 3221157360 134523701 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 22960 22321 231 231 0 22729 0
vsize: 0

Child status: 20
Real time (s): 139.958
CPU time (s): 139.971
CPU user time (s): 138.311
CPU system time (s): 1.65975
CPU usage (%): 100.009
Max. virtual memory (Kb): 91840
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####