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-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-glass4.opb
MD5SUM929651d54295ccab2bd7ed98e4ab5229
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 478
Biggest coefficient in the objective function 536870912000000
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 1073761158741413
Number of bits of the sum of numbers in the objective function 50
Biggest number in a constraint 71583145981965762560
Number of bits of the biggest number in a constraint 66
Biggest sum of numbers in a constraint 303620978593259257856
Number of bits of the biggest sum of numbers69
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1224.1
Number of variables780
Total number of constraints707
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)338
Number of constraints which are nor clauses,nor cardinality constraints369
Minimum length of a constraint1
Maximum length of a constraint101

Trace number 34500 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-05-27 23:44:10 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=12592 boxname=wulflinc31 idbench=969 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  929651d54295ccab2bd7ed98e4ab5229  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-glass4.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-glass4.opb 0
IDLAUNCH: 12592
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        921340 kB
Buffers:         20216 kB
Cached:          70600 kB
SwapCached:       1052 kB
Active:          52548 kB
Inactive:        40448 kB
HighTotal:      131008 kB
HighFree:        68824 kB
LowTotal:       903652 kB
LowFree:        852516 kB
SwapTotal:     2097892 kB
SwapFree:      2095928 kB
Dirty:             404 kB
Writeback:           0 kB
Mapped:           5088 kB
Slab:            14824 kB
Committed_AS:    63804 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-27 23:44:11 (client local time) WITH STATUS 20 IN 0.221965 SECONDS
stats: 12592 7 0.221965 20
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
result: proof of false found (0)
times:
0m0.019s 0m0.004s
0m0.128s 0m0.016s
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
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.85 0.97 0.99 2/55 13935
Raw data (stat): 13935 (runsolver) R 13934 29618 29617 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 860197684 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+0.573399 s]
Raw data (loadavg): 0.78 0.95 0.98 1/54 13942
Raw data (stat): 13935 (runsolver) R 13934 29618 29617 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 860197684 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 20
Real time (s): 0.573151
CPU time (s): 0.221965
CPU user time (s): 0.164974
CPU system time (s): 0.056991
CPU usage (%): 38.7271
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####