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-blend2.opb
MD5SUMa940bff1d003826845b22f555cfd27b8
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 88
Biggest coefficient in the objective function 24014225
Number of bits for the biggest coefficient in the objective function 25
Sum of the numbers in the objective function 235593725
Number of bits of the sum of numbers in the objective function 28
Biggest number in a constraint 37203426086400
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 1353236888971560
Number of bits of the biggest sum of numbers51
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.347946
Number of variables2061
Total number of constraints531
Number of constraints which are clauses9
Number of constraints which are cardinality constraints (but not clauses)310
Number of constraints which are nor clauses,nor cardinality constraints212
Minimum length of a constraint1
Maximum length of a constraint1776

Trace number 42884 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 17:44:08 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26103 boxname=wulflinc3 idbench=1403 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a940bff1d003826845b22f555cfd27b8  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-blend2.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-13-7-blend2.opb
IDLAUNCH: 26103
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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:        716492 kB
Buffers:         23360 kB
Cached:         273032 kB
SwapCached:        768 kB
Active:          33976 kB
Inactive:       264532 kB
HighTotal:      131008 kB
HighFree:         4704 kB
LowTotal:       903652 kB
LowFree:        711788 kB
SwapTotal:     2097136 kB
SwapFree:      2095372 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14132 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 17:45:45 (client local time) WITH STATUS 1 IN 97.4462 SECONDS
stats: 26103 7 97.4462 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): 0.91 0.93 0.90 1/54 27537
Raw data (stat): 27537 (runsolver) R 27536 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 972649873 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+10.0005 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 27537
Raw data (stat): 27537 (pb2sat-v2) R 27536 20224 20223 0 -1 0 28338 0 0 0 934 65 0 0 25 0 1 0 972649873 84606976 17398 4294967295 134512640 135730672 3221224576 3220571656 135292733 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 20656 17399 301 301 0 20355 0
vsize: 82624
[startup+20.001 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 27537
Raw data (stat): 27537 (pb2sat-v2) R 27536 20224 20223 0 -1 0 53366 0 0 0 1876 122 0 0 25 0 1 0 972649873 156946432 31457 4294967295 134512640 135730672 3221224576 3220406032 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 38317 31457 301 301 0 38016 0
vsize: 153268
[startup+30.0019 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 27537
Raw data (stat): 27537 (pb2sat-v2) R 27536 20224 20223 0 -1 0 92520 0 0 0 2794 205 0 0 25 0 1 0 972649873 275853312 48897 4294967295 134512640 135730672 3221224576 3220401992 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 67347 48897 301 301 0 67046 0
vsize: 269388
[startup+40.002 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 27537
Raw data (stat): 27537 (pb2sat-v2) R 27536 20224 20223 0 -1 0 110901 0 0 0 3756 242 0 0 25 0 1 0 972649873 334794752 67010 4294967295 134512640 135730672 3221224576 3220398824 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81737 67010 301 301 0 81436 0
vsize: 326948
[startup+50.0025 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 27537
Raw data (stat): 27537 (pb2sat-v2) R 27536 20224 20223 0 -1 0 150219 0 0 0 4682 317 0 0 25 0 1 0 972649873 460505088 87420 4294967295 134512640 135730672 3221224576 3220408400 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 112428 87420 301 301 0 112127 0
vsize: 449712
[startup+60.0024 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 27537
Raw data (stat): 27537 (pb2sat-v2) R 27536 20224 20223 0 -1 0 185884 0 0 0 5602 397 0 0 25 0 1 0 972649873 561168384 98270 4294967295 134512640 135730672 3221224576 3220407544 135284109 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137004 98271 301 301 0 136703 0
vsize: 548016
[startup+70.0025 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 27537
Raw data (stat): 27537 (pb2sat-v2) R 27536 20224 20223 0 -1 0 201952 0 0 0 6565 434 0 0 25 0 1 0 972649873 616878080 114100 4294967295 134512640 135730672 3221224576 3220401528 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 150605 114101 301 301 0 150304 0
vsize: 602420
[startup+80.003 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 27537
Raw data (stat): 27537 (pb2sat-v2) R 27536 20224 20223 0 -1 0 222807 0 0 0 7522 477 0 0 25 0 1 0 972649873 651874304 134676 4294967295 134512640 135730672 3221224576 3220407804 135301622 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159149 134677 301 301 0 158848 0
vsize: 636596
[startup+90.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 27537
Raw data (stat): 27537 (pb2sat-v2) R 27536 20224 20223 0 -1 0 240378 0 0 0 8487 512 0 0 25 0 1 0 972649873 680058880 152014 4294967295 134512640 135730672 3221224576 3221222800 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 166030 152014 301 301 0 165729 0
vsize: 664120
[startup+97.4549 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 27537
Raw data (stat): 27537 (pb2sat-v2) R 27536 20224 20223 0 -1 0 240378 0 0 0 8487 512 0 0 25 0 1 0 972649873 680058880 152014 4294967295 134512640 135730672 3221224576 3221222800 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 166030 152014 301 301 0 165729 0
vsize: 0

Child status: 1
Real time (s): 97.4547
CPU time (s): 97.4462
CPU user time (s): 92.006
CPU system time (s): 5.44017
CPU usage (%): 99.9912
Max. virtual memory (Kb): 664120
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####