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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-share2b.opb
MD5SUM4012b33f10ee9cb79561239f68fdcd6b
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 870
Biggest coefficient in the objective function 204010946560
Number of bits for the biggest coefficient in the objective function 38
Sum of the numbers in the objective function 4534411718529
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 552977039360
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 10976862656529
Number of bits of the biggest sum of numbers44
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.220965
Number of variables2370
Total number of constraints96
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints96
Minimum length of a constraint30
Maximum length of a constraint360

Trace number 42358 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 06:02:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25576 boxname=wulflinc4 idbench=876 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4012b33f10ee9cb79561239f68fdcd6b  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-share2b.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-share2b.opb
IDLAUNCH: 25576
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        718468 kB
Buffers:         34308 kB
Cached:         259800 kB
SwapCached:        944 kB
Active:          27312 kB
Inactive:       268936 kB
HighTotal:      131008 kB
HighFree:         6608 kB
LowTotal:       903652 kB
LowFree:        711860 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14252 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:04:22 (client local time) WITH STATUS 1 IN 109.56 SECONDS
stats: 25576 7 109.56 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
Raw data (loadavg): 0.94 0.98 0.91 2/54 22520
Raw data (stat): 22520 (runsolver) R 22519 21152 21151 0 -1 64 1 0 0 0 0 0 0 0 19 0 1 0 968438850 884736 93 4294967295 134512640 135332820 3221224464 3221219808 134957970 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+10.0007 s]
Raw data (loadavg): 0.95 0.98 0.91 2/54 22520
Raw data (stat): 22520 (pb2sat-v2) R 22519 21152 21151 0 -1 0 29167 0 0 0 938 60 0 0 25 0 1 0 968438850 88514560 18034 4294967295 134512640 135730672 3221224576 3221141168 134549851 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21610 18034 301 301 0 21309 0
vsize: 86440
[startup+20.0009 s]
Raw data (loadavg): 0.95 0.98 0.91 2/54 22520
Raw data (stat): 22520 (pb2sat-v2) R 22519 21152 21151 0 -1 0 58428 0 0 0 1881 117 0 0 25 0 1 0 968438850 175345664 36072 4294967295 134512640 135730672 3221224576 3221175480 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42809 36073 301 301 0 42508 0
vsize: 171236
[startup+30.0017 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 22520
Raw data (stat): 22520 (pb2sat-v2) R 22519 21152 21151 0 -1 0 98073 0 0 0 2801 197 0 0 25 0 1 0 968438850 295796736 54032 4294967295 134512640 135730672 3221224576 3221203784 135284346 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72216 54033 301 301 0 71915 0
vsize: 288864
[startup+40.0013 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 22520
Raw data (stat): 22520 (pb2sat-v2) R 22519 21152 21151 0 -1 0 108453 0 0 0 3777 221 0 0 25 0 1 0 968438850 329351168 64221 4294967295 134512640 135730672 3221224576 3221171616 134743033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 80408 64221 301 301 0 80107 0
vsize: 321632
[startup+50.0016 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 22520
Raw data (stat): 22520 (pb2sat-v2) R 22519 21152 21151 0 -1 0 126048 0 0 0 4741 256 0 0 25 0 1 0 968438850 475475968 81352 4294967295 134512640 135730672 3221224576 3221183376 134775432 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 116083 81354 301 301 0 115782 0
vsize: 464332
[startup+60.0029 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 22520
Raw data (stat): 22520 (pb2sat-v2) R 22519 21152 21151 0 -1 0 178174 0 0 0 5637 361 0 0 25 0 1 0 968438850 540667904 90616 4294967295 134512640 135730672 3221224576 3221089488 134743393 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 131999 90616 301 301 0 131698 0
vsize: 527996
[startup+70.0029 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 22520
Raw data (stat): 22520 (pb2sat-v2) R 22519 21152 21151 0 -1 0 188978 0 0 0 6613 384 0 0 25 0 1 0 968438850 574222336 101220 4294967295 134512640 135730672 3221224576 3221102032 134786302 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 140191 101220 301 301 0 139890 0
vsize: 560764
[startup+80.0041 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 22520
Raw data (stat): 22520 (pb2sat-v2) R 22519 21152 21151 0 -1 0 204360 0 0 0 7582 415 0 0 25 0 1 0 968438850 583143424 116360 4294967295 134512640 135730672 3221224576 3221107736 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 142369 116360 301 301 0 142068 0
vsize: 569476
[startup+90.004 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 22520
Raw data (stat): 22520 (pb2sat-v2) R 22519 21152 21151 0 -1 0 224748 0 0 0 8543 455 0 0 25 0 1 0 968438850 612880384 136508 4294967295 134512640 135730672 3221224576 3221114696 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 149629 136509 301 301 0 149328 0
vsize: 598516
[startup+100.004 s]
Raw data (loadavg): 0.99 0.98 0.91 2/54 22520
Raw data (stat): 22520 (pb2sat-v2) R 22519 21152 21151 0 -1 0 241040 0 0 0 9512 486 0 0 25 0 1 0 968438850 687001600 152608 4294967295 134512640 135730672 3221224576 3221126136 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 167725 152609 301 301 0 167424 0
vsize: 670900
[startup+109.578 s]
Raw data (loadavg): 0.99 0.98 0.91 1/53 22520
Raw data (stat): 22520 (pb2sat-v2) R 22519 21152 21151 0 -1 0 241040 0 0 0 9512 486 0 0 25 0 1 0 968438850 687001600 152608 4294967295 134512640 135730672 3221224576 3221126136 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 167725 152609 301 301 0 167424 0
vsize: 0

Child status: 1
Real time (s): 109.577
CPU time (s): 109.56
CPU user time (s): 104.253
CPU system time (s): 5.30719
CPU usage (%): 99.9844
Max. virtual memory (Kb): 670900
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####