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-modglob.opb
MD5SUM67db9c2194e708c1ddf0d62b3a68822e
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 6578
Biggest coefficient in the objective function 21493710848000000
Number of bits for the biggest coefficient in the objective function 55
Sum of the numbers in the objective function 1450509811657714210
Number of bits of the sum of numbers in the objective function 61
Biggest number in a constraint 21493710848000000
Number of bits of the biggest number in a constraint 55
Biggest sum of numbers in a constraint 1450509811657714210
Number of bits of the biggest sum of numbers61
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.060989
Number of variables6578
Total number of constraints389
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)98
Number of constraints which are nor clauses,nor cardinality constraints291
Minimum length of a constraint1
Maximum length of a constraint180

Trace number 34235

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-27 21:07:57 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17727 boxname=wulflinc1 idbench=1364 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  67db9c2194e708c1ddf0d62b3a68822e  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-modglob.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-modglob.opb 0
IDLAUNCH: 17727
/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:        531056 kB
Buffers:         34340 kB
Cached:         444364 kB
SwapCached:        764 kB
Active:          53864 kB
Inactive:       427208 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        530804 kB
SwapTotal:     2097136 kB
SwapFree:      2095360 kB
Dirty:              60 kB
Writeback:           0 kB
Mapped:           5784 kB
Slab:            16768 kB
Committed_AS:    92720 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-27 21:07:58 (client local time) WITH STATUS 20 IN 0.447931 SECONDS
stats: 17727 7 0.447931 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
result: proof of false found (0)
times:
0m0.016s 0m0.011s
0m0.351s 0m0.018s
s UNSATISFIABLE
#### 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
Enforcing Stack size limit: 67108864 bytes
Raw data (loadavg): 0.69 0.91 0.89 2/55 15627
Raw data (stat): 15627 (runsolver) R 15626 8378 8377 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 744202480 884736 93 4294967295 134512640 135332820 3221224448 3221219616 134692420 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 864
Current StackSize limit: 67108864 bytes
[startup+0.775062 s]
Raw data (loadavg): 0.69 0.91 0.89 1/54 15634
Raw data (stat): 15627 (runsolver) R 15626 8378 8377 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 744202480 884736 93 4294967295 134512640 135332820 3221224448 3221219616 134692420 0 0 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 0

Child status: 20
Real time (s): 0.774827
CPU time (s): 0.447931
CPU user time (s): 0.396939
CPU system time (s): 0.050992
CPU usage (%): 57.8105
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####