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/miplib3/normalized-mps-v2-20-10-l152lav.opb
MD5SUM9d4ce12b138a2bef65a1f401ec9d1f01
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 4742
Optimality of the best value was proved NO
Number of terms in the objective function 1989
Biggest coefficient in the objective function 268
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 382524
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 268
Number of bits of the biggest number in a constraint 9
Biggest sum of numbers in a constraint 382524
Number of bits of the biggest sum of numbers19
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.33
Number of variables1989
Total number of constraints2086
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2085
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint1
Maximum length of a constraint1989

Trace number 35257 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc19 THE 2005-05-28 12:35:22 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24566 boxname=wulflinc19 idbench=1038 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9d4ce12b138a2bef65a1f401ec9d1f01  /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-l152lav.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc19/normalized-mps-v2-20-10-l152lav.opb
IDLAUNCH: 24566
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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	: 3
cpu MHz		: 451.037
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:        987108 kB
Buffers:           764 kB
Cached:          26088 kB
SwapCached:        824 kB
Active:          16276 kB
Inactive:        12448 kB
HighTotal:      131008 kB
HighFree:       111692 kB
LowTotal:       903652 kB
LowFree:        875416 kB
SwapTotal:     2097892 kB
SwapFree:      2095972 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4624 kB
Slab:            13196 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:37:08 (client local time) WITH STATUS 1 IN 105.946 SECONDS
stats: 24566 7 105.946 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): 0.91 0.97 0.91 2/54 20022
Raw data (stat): 20022 (runsolver) R 20021 10795 10794 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864838052 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+10.0007 s]
Raw data (loadavg): 0.93 0.97 0.91 2/54 20022
Raw data (stat): 20022 (pb2sat) R 20021 10795 10794 0 -1 0 29463 0 0 0 932 67 0 0 25 0 1 0 864838052 90816512 18313 4294967295 134512640 135726644 3221224576 3220732536 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22172 18313 300 300 0 21872 0
vsize: 88688
[startup+20.0014 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 20022
Raw data (stat): 20022 (pb2sat) R 20021 10795 10794 0 -1 0 57871 0 0 0 1873 126 0 0 25 0 1 0 864838052 177451008 35499 4294967295 134512640 135726644 3221224576 3220736552 135281314 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43323 35500 300 300 0 43023 0
vsize: 173292
[startup+30.0015 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 20022
Raw data (stat): 20022 (pb2sat) R 20021 10795 10794 0 -1 0 96656 0 0 0 2796 203 0 0 25 0 1 0 864838052 295809024 52096 4294967295 134512640 135726644 3221224576 3220941352 135280864 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72219 52096 300 300 0 71919 0
vsize: 288876
[startup+40.0011 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 20022
Raw data (stat): 20022 (pb2sat) R 20021 10795 10794 0 -1 0 114184 0 0 0 3758 241 0 0 25 0 1 0 864838052 348016640 69390 4294967295 134512640 135726644 3221224576 3220944000 135105730 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84965 69391 300 300 0 84665 0
vsize: 339860
[startup+50.0019 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 20022
Raw data (stat): 20022 (pb2sat) R 20021 10795 10794 0 -1 0 158941 0 0 0 4678 321 0 0 25 0 1 0 864838052 557400064 112944 4294967295 134512640 135726644 3221224576 3220571760 134771783 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 136084 112947 300 300 0 135784 0
vsize: 544336
[startup+60.0019 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 20022
Raw data (stat): 20022 (pb2sat) R 20021 10795 10794 0 -1 0 193412 0 0 0 5606 394 0 0 25 0 1 0 864838052 590950400 104247 4294967295 134512640 135726644 3221224576 3220443352 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144275 104247 300 300 0 143975 0
vsize: 577100
[startup+70.0025 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 20022
Raw data (stat): 20022 (pb2sat) R 20021 10795 10794 0 -1 0 204975 0 0 0 6579 421 0 0 25 0 1 0 864838052 625180672 115610 4294967295 134512640 135726644 3221224576 3221186868 135289349 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 152632 115610 300 300 0 152332 0
vsize: 610528
[startup+80.0033 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 20022
Raw data (stat): 20022 (pb2sat) R 20021 10795 10794 0 -1 0 225385 0 0 0 7537 463 0 0 25 0 1 0 864838052 655052800 135788 4294967295 134512640 135726644 3221224576 3220531728 134554683 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159925 135788 300 300 0 159625 0
vsize: 639700
[startup+90.0034 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 20022
Raw data (stat): 20022 (pb2sat) R 20021 10795 10794 0 -1 0 246251 0 0 0 8494 506 0 0 25 0 1 0 864838052 685330432 156416 4294967295 134512640 135726644 3221224576 3221040152 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 167317 156416 300 300 0 167017 0
vsize: 669268
[startup+100.004 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 20022
Raw data (stat): 20022 (pb2sat) R 20021 10795 10794 0 -1 0 262701 0 0 0 9463 538 0 0 25 0 1 0 864838052 759586816 172680 4294967295 134512640 135726644 3221224576 3220992492 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185446 172680 300 300 0 185146 0
vsize: 741784
[startup+105.942 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 20022
Raw data (stat): 20022 (pb2sat) R 20021 10795 10794 0 -1 0 262701 0 0 0 9463 538 0 0 25 0 1 0 864838052 759586816 172680 4294967295 134512640 135726644 3221224576 3220992492 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185446 172680 300 300 0 185146 0
vsize: 0

Child status: 1
Real time (s): 105.942
CPU time (s): 105.946
CPU user time (s): 100.193
CPU system time (s): 5.75312
CPU usage (%): 100.004
Max. virtual memory (Kb): 741784
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####