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-lp4l.opb
MD5SUM3c39e3c2b993ee2185e2a1a3e73b9723
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3744
Optimality of the best value was proved NO
Number of terms in the objective function 1086
Biggest coefficient in the objective function 283
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 197191
Number of bits of the sum of numbers in the objective function 18
Biggest number in a constraint 283
Number of bits of the biggest number in a constraint 9
Biggest sum of numbers in a constraint 197191
Number of bits of the biggest sum of numbers18
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.09
Number of variables1086
Total number of constraints1171
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1170
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint1086

Trace number 35144 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-05-28 12:18:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24445 boxname=wulflinc6 idbench=917 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3c39e3c2b993ee2185e2a1a3e73b9723  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-lp4l.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-lp4l.opb
IDLAUNCH: 24445
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        723556 kB
Buffers:         34336 kB
Cached:         254176 kB
SwapCached:        624 kB
Active:          19180 kB
Inactive:       271556 kB
HighTotal:      131008 kB
HighFree:        76748 kB
LowTotal:       903652 kB
LowFree:        646808 kB
SwapTotal:     2097136 kB
SwapFree:      2095604 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5180 kB
Slab:            14652 kB
Committed_AS:    63732 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:20:29 (client local time) WITH STATUS 1 IN 106.531 SECONDS
stats: 24445 7 106.531 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 0.92 2/54 3272
Raw data (stat): 3272 (runsolver) R 3271 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806523437 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0016 s]
Raw data (loadavg): 0.93 0.96 0.92 2/54 3272
Raw data (stat): 3272 (pb2sat) R 3271 25568 25567 0 -1 0 29539 0 0 0 933 66 0 0 25 0 1 0 806523437 90116096 18393 4294967295 134512640 135726644 3221224592 3220791232 134766431 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22001 18393 300 300 0 21701 0
vsize: 88004
[startup+20.0018 s]
Raw data (loadavg): 0.94 0.96 0.92 2/54 3272
Raw data (stat): 3272 (pb2sat) R 3271 25568 25567 0 -1 0 58571 0 0 0 1870 129 0 0 25 0 1 0 806523437 177696768 36205 4294967295 134512640 135726644 3221224592 3220901848 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43383 36206 300 300 0 43083 0
vsize: 173532
[startup+30.0022 s]
Raw data (loadavg): 0.95 0.96 0.92 2/54 3272
Raw data (stat): 3272 (pb2sat) R 3271 25568 25567 0 -1 0 98162 0 0 0 2795 205 0 0 25 0 1 0 806523437 297541632 53601 4294967295 134512640 135726644 3221224592 3220910168 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72642 53601 300 300 0 72342 0
vsize: 290568
[startup+40.0024 s]
Raw data (loadavg): 0.96 0.96 0.92 2/54 3272
Raw data (stat): 3272 (pb2sat) R 3271 25568 25567 0 -1 0 114891 0 0 0 3762 237 0 0 25 0 1 0 806523437 348532736 70111 4294967295 134512640 135726644 3221224592 3221046480 134767049 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85091 70112 300 300 0 84791 0
vsize: 340364
[startup+50.0022 s]
Raw data (loadavg): 0.96 0.96 0.92 2/54 3272
Raw data (stat): 3272 (pb2sat) R 3271 25568 25567 0 -1 0 154383 0 0 0 4693 307 0 0 25 0 1 0 806523437 551022592 108637 4294967295 134512640 135726644 3221224592 3221163776 134771708 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 134527 108640 300 300 0 134227 0
vsize: 538108
[startup+60.0162 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 3272
Raw data (stat): 3272 (pb2sat) R 3271 25568 25567 0 -1 0 195206 0 0 0 5610 392 0 0 25 0 1 0 806523437 595656704 106057 4294967295 134512640 135726644 3221224592 3220953280 134739663 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145424 106057 300 300 0 145124 0
vsize: 581696
[startup+70.0252 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 3272
Raw data (stat): 3272 (pb2sat) R 3271 25568 25567 0 -1 0 206652 0 0 0 6588 416 0 0 25 0 1 0 806523437 629211136 117302 4294967295 134512640 135726644 3221224592 3220845344 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153616 117303 300 300 0 153316 0
vsize: 614464
[startup+80.0256 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 3272
Raw data (stat): 3272 (pb2sat) R 3271 25568 25567 0 -1 0 226347 0 0 0 7552 452 0 0 25 0 1 0 806523437 654487552 136760 4294967295 134512640 135726644 3221224592 3220939728 134554783 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159787 136760 300 300 0 159487 0
vsize: 639148
[startup+90.0262 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 3272
Raw data (stat): 3272 (pb2sat) R 3271 25568 25567 0 -1 0 244715 0 0 0 8514 490 0 0 25 0 1 0 806523437 731176960 154919 4294967295 134512640 135726644 3221224592 3221139216 134780348 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 178510 154919 300 300 0 178210 0
vsize: 714040
[startup+100.026 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 3272
Raw data (stat): 3272 (pb2sat) R 3271 25568 25567 0 -1 0 263128 0 0 0 9477 528 0 0 25 0 1 0 806523437 757399552 173121 4294967295 134512640 135726644 3221224592 3221209848 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184912 173121 300 300 0 184612 0
vsize: 739648
[startup+106.506 s]
Raw data (loadavg): 0.98 0.96 0.92 1/53 3272
Raw data (stat): 3272 (pb2sat) R 3271 25568 25567 0 -1 0 263128 0 0 0 9477 528 0 0 25 0 1 0 806523437 757399552 173121 4294967295 134512640 135726644 3221224592 3221209848 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184912 173121 300 300 0 184612 0
vsize: 0

Child status: 1
Real time (s): 106.506
CPU time (s): 106.531
CPU user time (s): 100.85
CPU system time (s): 5.68114
CPU usage (%): 100.023
Max. virtual memory (Kb): 739648
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####