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/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-dano3_3.opb
MD5SUMcb5fbc431eb68f8a2a8d0f81405ac2af
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 20
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 1048575
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 131072000
Number of bits of the biggest number in a constraint 27
Biggest sum of numbers in a constraint 576307709
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark296.838
Number of variables270305
Total number of constraints3778
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)72
Number of constraints which are nor clauses,nor cardinality constraints3706
Minimum length of a constraint1
Maximum length of a constraint10600

Trace number 42977 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 20:16:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26196 boxname=wulflinc2 idbench=1496 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  cb5fbc431eb68f8a2a8d0f81405ac2af  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-dano3_3.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-dano3_3.opb
IDLAUNCH: 26196
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        634588 kB
Buffers:         24072 kB
Cached:         352928 kB
SwapCached:       1420 kB
Active:          48452 kB
Inactive:       330592 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        634308 kB
SwapTotal:     2097136 kB
SwapFree:      2094720 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            15328 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 20:18:15 (client local time) WITH STATUS 1 IN 100.792 SECONDS
stats: 26196 7 100.792 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): 0.92 0.95 0.90 1/54 15211
Raw data (stat): 15211 (runsolver) D 15210 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 18 0 1 0 973577736 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0006 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 15211
Raw data (stat): 15211 (pb2sat-v2) R 15210 31399 31398 0 -1 0 25271 0 0 0 937 59 0 0 25 0 1 0 973577736 78893056 14390 4294967295 134512640 135730672 3221224576 3220960664 134546301 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19261 14391 301 301 0 18960 0
vsize: 77044
[startup+20.001 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 15211
Raw data (stat): 15211 (pb2sat-v2) R 15210 31399 31398 0 -1 0 51849 0 0 0 1876 119 0 0 25 0 1 0 973577736 152883200 29740 4294967295 134512640 135730672 3221224576 3220989292 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37325 29740 301 301 0 37024 0
vsize: 149300
[startup+30.0005 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 15211
Raw data (stat): 15211 (pb2sat-v2) R 15210 31399 31398 0 -1 0 91359 0 0 0 2792 203 0 0 25 0 1 0 973577736 269549568 47555 4294967295 134512640 135730672 3221224576 3221203072 135104822 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 65808 47556 301 301 0 65507 0
vsize: 263232
[startup+40.0015 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 15211
Raw data (stat): 15211 (pb2sat-v2) R 15210 31399 31398 0 -1 0 105391 0 0 0 3758 237 0 0 25 0 1 0 973577736 303239168 61335 4294967295 134512640 135730672 3221224576 3221078688 135284212 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74033 61337 301 301 0 73732 0
vsize: 296132
[startup+50.0077 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 15211
Raw data (stat): 15211 (pb2sat-v2) R 15210 31399 31398 0 -1 0 148133 0 0 0 4675 321 0 0 25 0 1 0 973577736 505188352 102875 4294967295 134512640 135730672 3221224576 3220874768 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 123337 102875 301 301 0 123036 0
vsize: 493348
[startup+60.0076 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 15211
Raw data (stat): 15211 (pb2sat-v2) R 15210 31399 31398 0 -1 0 183383 0 0 0 5596 400 0 0 25 0 1 0 973577736 576491520 95968 4294967295 134512640 135730672 3221224576 3220908896 134784086 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140745 95968 301 301 0 140444 0
vsize: 562980
[startup+70.0076 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 15211
Raw data (stat): 15211 (pb2sat-v2) R 15210 31399 31398 0 -1 0 198511 0 0 0 6561 434 0 0 25 0 1 0 973577736 576491520 110829 4294967295 134512640 135730672 3221224576 3220931280 134786288 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140745 110829 301 301 0 140444 0
vsize: 562980
[startup+80.008 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15211
Raw data (stat): 15211 (pb2sat-v2) R 15210 31399 31398 0 -1 0 213725 0 0 0 7529 466 0 0 25 0 1 0 973577736 576491520 125774 4294967295 134512640 135730672 3221224576 3221007944 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140745 125774 301 301 0 140444 0
vsize: 562980
[startup+90.0086 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15211
Raw data (stat): 15211 (pb2sat-v2) R 15210 31399 31398 0 -1 0 227749 0 0 0 8497 499 0 0 25 0 1 0 973577736 634933248 139585 4294967295 134512640 135730672 3221224576 3220982424 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155013 139587 301 301 0 154712 0
vsize: 620052
[startup+100.009 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15211
Raw data (stat): 15211 (pb2sat-v2) R 15210 31399 31398 0 -1 0 245704 0 0 0 9437 559 0 0 25 0 1 0 973577736 138633216 33686 4294967295 134512640 135730672 3221224576 3221223020 135281218 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 33846 33686 301 301 0 33545 0
vsize: 135384
[startup+100.834 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 15211
Raw data (stat): 15211 (pb2sat-v2) R 15210 31399 31398 0 -1 0 245704 0 0 0 9437 559 0 0 25 0 1 0 973577736 138633216 33686 4294967295 134512640 135730672 3221224576 3221223020 135281218 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 33846 33686 301 301 0 33545 0
vsize: 0

Child status: 1
Real time (s): 100.834
CPU time (s): 100.792
CPU user time (s): 95.1195
CPU system time (s): 5.67214
CPU usage (%): 99.9578
Max. virtual memory (Kb): 620052
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####