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-gesa3_o.opb
MD5SUMfca009b84c2f2c99c6eab1b54cde16f4
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 6144
Biggest coefficient in the objective function 409031671808
Number of bits for the biggest coefficient in the objective function 39
Sum of the numbers in the objective function 143020903040784
Number of bits of the sum of numbers in the objective function 48
Biggest number in a constraint 524288000000
Number of bits of the biggest number in a constraint 39
Biggest sum of numbers in a constraint 143020903040784
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.099984
Number of variables10704
Total number of constraints1560
Number of constraints which are clauses168
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints1392
Minimum length of a constraint2
Maximum length of a constraint211

Trace number 35634

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc29 THE 2005-05-28 13:37:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24946 boxname=wulflinc29 idbench=1418 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  fca009b84c2f2c99c6eab1b54cde16f4  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-gesa3_o.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-gesa3_o.opb
IDLAUNCH: 24946
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.020
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		: 451.020
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:        709056 kB
Buffers:         34884 kB
Cached:         265656 kB
SwapCached:        632 kB
Active:          17548 kB
Inactive:       285084 kB
HighTotal:      131008 kB
HighFree:         1540 kB
LowTotal:       903652 kB
LowFree:        707516 kB
SwapTotal:     2097892 kB
SwapFree:      2096368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5132 kB
Slab:            17252 kB
Committed_AS:    63592 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 13:39:14 (client local time) WITH STATUS 1 IN 100.617 SECONDS
stats: 24946 7 100.617 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### 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): 0.87 0.93 0.90 2/54 29957
Raw data (stat): 29957 (runsolver) R 29956 20001 20000 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 865214205 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.001 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 29957
Raw data (stat): 29957 (pb2sat) R 29956 20001 20000 0 -1 0 29373 0 0 0 938 61 0 0 25 0 1 0 865214205 92094464 18226 4294967295 134512640 135726644 3221224576 3218778720 134604405 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22484 18226 300 300 0 22184 0
vsize: 89936
[startup+20.0014 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 29957
Raw data (stat): 29957 (pb2sat) R 29956 20001 20000 0 -1 0 59225 0 0 0 1878 121 0 0 25 0 1 0 865214205 180781056 36834 4294967295 134512640 135726644 3221224576 3218799728 134554559 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 44136 36834 300 300 0 43836 0
vsize: 176544
[startup+30.0022 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 29957
Raw data (stat): 29957 (pb2sat) R 29956 20001 20000 0 -1 0 98197 0 0 0 2796 203 0 0 25 0 1 0 865214205 296194048 53585 4294967295 134512640 135726644 3221224576 3218767412 135280408 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72313 53585 300 300 0 72013 0
vsize: 289252
[startup+40.0033 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 29957
Raw data (stat): 29957 (pb2sat) R 29956 20001 20000 0 -1 0 117756 0 0 0 3758 241 0 0 25 0 1 0 865214205 355971072 72894 4294967295 134512640 135726644 3221224576 3218798400 135105730 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 86907 72894 300 300 0 86607 0
vsize: 347628
[startup+50.0037 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 29957
Raw data (stat): 29957 (pb2sat) R 29956 20001 20000 0 -1 0 158630 0 0 0 4679 320 0 0 25 0 1 0 865214205 487993344 94154 4294967295 134512640 135726644 3221224576 3218762232 135280592 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 119139 94154 300 300 0 118839 0
vsize: 476556
[startup+60.0035 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 29957
Raw data (stat): 29957 (pb2sat) R 29956 20001 20000 0 -1 0 195166 0 0 0 5603 397 0 0 25 0 1 0 865214205 588656640 105883 4294967295 134512640 135726644 3221224576 3218752064 134767064 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 143715 105884 300 300 0 143415 0
vsize: 574860
[startup+70.0065 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 29957
Raw data (stat): 29957 (pb2sat) R 29956 20001 20000 0 -1 0 211110 0 0 0 6570 430 0 0 25 0 1 0 865214205 638025728 121599 4294967295 134512640 135726644 3221224576 3218760064 134767123 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155768 121600 300 300 0 155468 0
vsize: 623072
[startup+80.0069 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 29957
Raw data (stat): 29957 (pb2sat) R 29956 20001 20000 0 -1 0 232401 0 0 0 7526 475 0 0 25 0 1 0 865214205 669790208 142627 4294967295 134512640 135726644 3221224576 3218752080 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163523 142628 300 300 0 163223 0
vsize: 654092
[startup+90.0078 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 29957
Raw data (stat): 29957 (pb2sat) R 29956 20001 20000 0 -1 0 253471 0 0 0 8482 519 0 0 25 0 1 0 865214205 703471616 163440 4294967295 134512640 135726644 3221224576 3218758064 134767052 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171746 163440 300 300 0 171446 0
vsize: 686984
[startup+100.008 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 29957
Raw data (stat): 29957 (pb2sat) R 29956 20001 20000 0 -1 0 253747 0 0 0 9468 533 0 0 25 0 1 0 865214205 394399744 95313 4294967295 134512640 135726644 3221224576 3221222928 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96289 95313 300 300 0 95989 0
vsize: 385156
[startup+100.614 s]
Raw data (loadavg): 0.97 0.94 0.91 1/53 29957
Raw data (stat): 29957 (pb2sat) R 29956 20001 20000 0 -1 0 253747 0 0 0 9468 533 0 0 25 0 1 0 865214205 394399744 95313 4294967295 134512640 135726644 3221224576 3221222928 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 96289 95313 300 300 0 95989 0
vsize: 0

Child status: 1
Real time (s): 100.614
CPU time (s): 100.617
CPU user time (s): 95.0855
CPU system time (s): 5.53116
CPU usage (%): 100.003
Max. virtual memory (Kb): 686984
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####