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-p6000.opb
MD5SUM9658c3320439c0e9ede5a5b3bf39501b
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -279330
Optimality of the best value was proved NO
Number of terms in the objective function 5995
Biggest coefficient in the objective function 91110
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 12969603
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 800000
Number of bits of the biggest number in a constraint 20
Biggest sum of numbers in a constraint 28761906
Number of bits of the biggest sum of numbers25
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.15
Number of variables6000
Total number of constraints8176
Number of constraints which are clauses222
Number of constraints which are cardinality constraints (but not clauses)7919
Number of constraints which are nor clauses,nor cardinality constraints35
Minimum length of a constraint1
Maximum length of a constraint6000

Trace number 35169 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc17 THE 2005-05-28 12:20:48 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24466 boxname=wulflinc17 idbench=938 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9658c3320439c0e9ede5a5b3bf39501b  /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-p6000.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-p6000.opb
IDLAUNCH: 24466
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.072
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		: 451.072
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:        707896 kB
Buffers:         34804 kB
Cached:         260368 kB
SwapCached:        628 kB
Active:          20796 kB
Inactive:       276420 kB
HighTotal:      131008 kB
HighFree:        40236 kB
LowTotal:       903652 kB
LowFree:        667660 kB
SwapTotal:     2097892 kB
SwapFree:      2096376 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5144 kB
Slab:            23876 kB
Committed_AS:    63568 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:22:35 (client local time) WITH STATUS 1 IN 106.134 SECONDS
stats: 24466 7 106.134 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): 0.79 0.92 0.90 2/54 20279
Raw data (stat): 20279 (runsolver) R 20278 7475 7474 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864770674 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): 0.82 0.92 0.90 2/54 20279
Raw data (stat): 20279 (pb2sat) R 20278 7475 7474 0 -1 0 27336 0 0 0 936 63 0 0 25 0 1 0 864770674 81272832 16209 4294967295 134512640 135726644 3221224576 3219563692 134604476 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19842 16209 300 300 0 19542 0
vsize: 79368
[startup+20.0014 s]
Raw data (loadavg): 0.85 0.92 0.90 2/54 20279
Raw data (stat): 20279 (pb2sat) R 20278 7475 7474 0 -1 0 54897 0 0 0 1877 123 0 0 25 0 1 0 864770674 175755264 32551 4294967295 134512640 135726644 3221224576 3218956892 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42909 32551 300 300 0 42609 0
vsize: 171636
[startup+30.002 s]
Raw data (loadavg): 0.87 0.93 0.90 2/54 20279
Raw data (stat): 20279 (pb2sat) R 20278 7475 7474 0 -1 0 82328 0 0 0 2822 178 0 0 25 0 1 0 864770674 246620160 50076 4294967295 134512640 135726644 3221224576 3219263672 134809923 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 60210 50076 300 300 0 59910 0
vsize: 240840
[startup+40.0022 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 20279
Raw data (stat): 20279 (pb2sat) R 20278 7475 7474 0 -1 0 109519 0 0 0 3760 240 0 0 25 0 1 0 864770674 345509888 64775 4294967295 134512640 135726644 3221224576 3220347404 135280490 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84353 64775 300 300 0 84053 0
vsize: 337412
[startup+50.0022 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 20279
Raw data (stat): 20279 (pb2sat) R 20278 7475 7474 0 -1 0 149997 0 0 0 4683 316 0 0 25 0 1 0 864770674 550027264 104259 4294967295 134512640 135726644 3221224576 3219745696 135105727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 134284 104259 300 300 0 133984 0
vsize: 537136
[startup+60.0018 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 20279
Raw data (stat): 20279 (pb2sat) R 20278 7475 7474 0 -1 0 174491 0 0 0 5629 371 0 0 25 0 1 0 864770674 692895744 109891 4294967295 134512640 135726644 3221224576 3218900592 134784885 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169164 109891 300 300 0 168864 0
vsize: 676656
[startup+70.0014 s]
Raw data (loadavg): 0.93 0.93 0.90 2/54 20279
Raw data (stat): 20279 (pb2sat) R 20278 7475 7474 0 -1 0 202182 0 0 0 6565 435 0 0 25 0 1 0 864770674 627134464 112799 4294967295 134512640 135726644 3221224576 3219892056 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153109 112799 300 300 0 152809 0
vsize: 612436
[startup+80.002 s]
Raw data (loadavg): 0.94 0.94 0.90 2/54 20279
Raw data (stat): 20279 (pb2sat) R 20278 7475 7474 0 -1 0 222616 0 0 0 7521 479 0 0 25 0 1 0 864770674 659845120 132982 4294967295 134512640 135726644 3221224576 3219323328 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161095 132982 300 300 0 160795 0
vsize: 644380
[startup+90.0016 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 20279
Raw data (stat): 20279 (pb2sat) R 20278 7475 7474 0 -1 0 242393 0 0 0 8482 518 0 0 25 0 1 0 864770674 689717248 152535 4294967295 134512640 135726644 3221224576 3218871728 134554711 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168388 152535 300 300 0 168088 0
vsize: 673552
[startup+100.003 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 20279
Raw data (stat): 20279 (pb2sat) R 20278 7475 7474 0 -1 0 256893 0 0 0 9445 556 0 0 25 0 1 0 864770674 603467776 140425 4294967295 134512640 135726644 3221224576 3221222976 134778912 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 147331 140425 300 300 0 147031 0
vsize: 589324
[startup+106.123 s]
Raw data (loadavg): 0.96 0.94 0.91 1/53 20279
Raw data (stat): 20279 (pb2sat) R 20278 7475 7474 0 -1 0 256893 0 0 0 9445 556 0 0 25 0 1 0 864770674 603467776 140425 4294967295 134512640 135726644 3221224576 3221222976 134778912 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 147331 140425 300 300 0 147031 0
vsize: 0

Child status: 1
Real time (s): 106.123
CPU time (s): 106.134
CPU user time (s): 100.288
CPU system time (s): 5.84611
CPU usage (%): 100.01
Max. virtual memory (Kb): 676656
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####