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/miplib/normalized-mps-v2-20-10-air03.opb
MD5SUM45da6faf70c895e4acc43dda6a83b925
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 205255
Optimality of the best value was proved NO
Number of terms in the objective function 10757
Biggest coefficient in the objective function 6873
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 13748961
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 6873
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 13748961
Number of bits of the biggest sum of numbers24
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.14
Number of variables10757
Total number of constraints10881
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10881
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint3861

Trace number 42379 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 06:13:57 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25596 boxname=wulflinc4 idbench=896 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  45da6faf70c895e4acc43dda6a83b925  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-air03.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-air03.opb
IDLAUNCH: 25596
/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:        701672 kB
Buffers:         34340 kB
Cached:         276292 kB
SwapCached:        944 kB
Active:          29552 kB
Inactive:       283196 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        701420 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14620 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:15:51 (client local time) WITH STATUS 1 IN 112.967 SECONDS
stats: 25596 7 112.967 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 291404
c big objective detected
c trying from 0 to 511

	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 2/54 22708
Raw data (stat): 22708 (runsolver) R 22707 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968507345 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+10.0008 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 12207 0 0 0 969 30 0 0 25 0 1 0 968507345 40251392 6763 4294967295 134512640 135730672 3221224576 3221221520 134539788 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 9827 6763 301 301 0 9526 0
vsize: 39308
[startup+20.0022 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 28955 0 0 0 1931 68 0 0 25 0 1 0 968507345 88838144 17495 4294967295 134512640 135730672 3221224576 3218648056 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21689 17495 301 301 0 21388 0
vsize: 86756
[startup+30.003 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 56992 0 0 0 2872 128 0 0 25 0 1 0 968507345 176046080 34549 4294967295 134512640 135730672 3221224576 3219556576 134608788 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42980 34550 301 301 0 42679 0
vsize: 171920
[startup+40.0035 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 82505 0 0 0 3820 179 0 0 25 0 1 0 968507345 239407104 50638 4294967295 134512640 135730672 3221224576 3220540624 135282716 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 58449 50638 301 301 0 58148 0
vsize: 233796
[startup+50.0047 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 111036 0 0 0 4754 246 0 0 25 0 1 0 968507345 347893760 66658 4294967295 134512640 135730672 3221224576 3220298304 135288492 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84935 66658 301 301 0 84634 0
vsize: 339740
[startup+60.0046 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 149903 0 0 0 5672 328 0 0 25 0 1 0 968507345 476778496 86951 4294967295 134512640 135730672 3221224576 3218366024 135284590 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116401 86951 301 301 0 116100 0
vsize: 465604
[startup+70.0058 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 162864 0 0 0 6643 357 0 0 25 0 1 0 968507345 485171200 99657 4294967295 134512640 135730672 3221224576 3216903344 134770772 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 118450 99657 301 301 0 118149 0
vsize: 473800
[startup+80.0063 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 200201 0 0 0 7565 435 0 0 25 0 1 0 968507345 595296256 112195 4294967295 134512640 135730672 3221224576 3216911320 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145336 112196 301 301 0 145035 0
vsize: 581344
[startup+90.0062 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 216380 0 0 0 8528 473 0 0 25 0 1 0 968507345 653991936 128164 4294967295 134512640 135730672 3221224576 3220791616 134786839 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159666 128165 301 301 0 159365 0
vsize: 638664
[startup+100.007 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 235345 0 0 0 9488 512 0 0 25 0 1 0 968507345 684134400 146878 4294967295 134512640 135730672 3221224576 3216835528 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 167025 146878 301 301 0 166724 0
vsize: 668100
[startup+110.007 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 243223 0 0 0 10460 541 0 0 25 0 1 0 968507345 386785280 94009 4294967295 134512640 135730672 3221224576 3221222764 135281195 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 94430 94009 301 301 0 94129 0
vsize: 377720
[startup+112.962 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 22708
Raw data (stat): 22708 (pb2sat-v2) R 22707 21152 21151 0 -1 0 243223 0 0 0 10460 541 0 0 25 0 1 0 968507345 386785280 94009 4294967295 134512640 135730672 3221224576 3221222764 135281195 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 94430 94009 301 301 0 94129 0
vsize: 0

Child status: 1
Real time (s): 112.961
CPU time (s): 112.967
CPU user time (s): 107.363
CPU system time (s): 5.60415
CPU usage (%): 100.005
Max. virtual memory (Kb): 668100
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####