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/plato.asu.edu/pub/fctp/normalized-mps-v2-20-10-ran16x16.opb
MD5SUM3d8e7805538589672f96799acf97ae3f
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 10237643
Optimality of the best value was proved NO
Number of terms in the objective function 7936
Biggest coefficient in the objective function 5368709120
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 1558042522197
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 5368709120
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 1558042522197
Number of bits of the biggest sum of numbers41
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1231.65
Number of variables7936
Total number of constraints288
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints288
Minimum length of a constraint31
Maximum length of a constraint480

Trace number 35314

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc9 THE 2005-05-28 12:52:30 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24630 boxname=wulflinc9 idbench=1102 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3d8e7805538589672f96799acf97ae3f  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ran16x16.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ran16x16.opb
IDLAUNCH: 24630
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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		: 451.242
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:        708268 kB
Buffers:         35672 kB
Cached:         266716 kB
SwapCached:        552 kB
Active:          18648 kB
Inactive:       285756 kB
HighTotal:      131008 kB
HighFree:         2072 kB
LowTotal:       903652 kB
LowFree:        706196 kB
SwapTotal:     2097136 kB
SwapFree:      2095648 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5144 kB
Slab:            16328 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:54:13 (client local time) WITH STATUS 1 IN 103.613 SECONDS
stats: 24630 7 103.613 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 0.95 0.90 2/54 19360
Raw data (stat): 19360 (runsolver) R 19359 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806725858 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+10.0005 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 19360
Raw data (stat): 19360 (pb2sat) R 19359 3944 3943 0 -1 0 29002 0 0 0 936 62 0 0 25 0 1 0 806725858 91148288 17879 4294967295 134512640 135726644 3221224576 3218118152 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22253 17879 300 300 0 21953 0
vsize: 89012
[startup+20.0005 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 19360
Raw data (stat): 19360 (pb2sat) R 19359 3944 3943 0 -1 0 58652 0 0 0 1872 126 0 0 25 0 1 0 806725858 178323456 36304 4294967295 134512640 135726644 3221224576 3218134064 134767234 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43536 36304 300 300 0 43236 0
vsize: 174144
[startup+30.001 s]
Raw data (loadavg): 1.02 0.97 0.91 2/54 19360
Raw data (stat): 19360 (pb2sat) R 19359 3944 3943 0 -1 0 99944 0 0 0 2784 215 0 0 25 0 1 0 806725858 302899200 55395 4294967295 134512640 135726644 3221224576 3218445392 134784436 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73950 55395 300 300 0 73650 0
vsize: 295800
[startup+40.0008 s]
Raw data (loadavg): 1.02 0.97 0.91 2/54 19360
Raw data (stat): 19360 (pb2sat) R 19359 3944 3943 0 -1 0 117175 0 0 0 3743 256 0 0 25 0 1 0 806725858 351727616 72389 4294967295 134512640 135726644 3221224576 3218200952 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85871 72389 300 300 0 85571 0
vsize: 343484
[startup+50.0019 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 19360
Raw data (stat): 19360 (pb2sat) R 19359 3944 3943 0 -1 0 160568 0 0 0 4658 341 0 0 25 0 1 0 806725858 561516544 114691 4294967295 134512640 135726644 3221224576 3218505760 134771928 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137089 114694 300 300 0 136789 0
vsize: 548356
[startup+60.0014 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 19360
Raw data (stat): 19360 (pb2sat) R 19359 3944 3943 0 -1 0 199164 0 0 0 5576 423 0 0 25 0 1 0 806725858 634433536 109989 4294967295 134512640 135726644 3221224576 3218367200 134780348 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154891 109989 300 300 0 154591 0
vsize: 619564
[startup+70.0012 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 19360
Raw data (stat): 19360 (pb2sat) R 19359 3944 3943 0 -1 0 211988 0 0 0 6548 451 0 0 25 0 1 0 806725858 634433536 122588 4294967295 134512640 135726644 3221224576 3218289280 134782652 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154891 122588 300 300 0 154591 0
vsize: 619564
[startup+80.0023 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 19360
Raw data (stat): 19360 (pb2sat) R 19359 3944 3943 0 -1 0 232904 0 0 0 7505 495 0 0 25 0 1 0 806725858 662953984 143259 4294967295 134512640 135726644 3221224576 3218578400 135284879 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 161854 143259 300 300 0 161554 0
vsize: 647416
[startup+90.0018 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 19360
Raw data (stat): 19360 (pb2sat) R 19359 3944 3943 0 -1 0 250200 0 0 0 8466 534 0 0 25 0 1 0 806725858 737751040 160356 4294967295 134512640 135726644 3221224576 3218370192 134607275 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 180115 160356 300 300 0 179815 0
vsize: 720460
[startup+100.002 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 19360
Raw data (stat): 19360 (pb2sat) R 19359 3944 3943 0 -1 0 266818 0 0 0 9428 572 0 0 25 0 1 0 806725858 762183680 176752 4294967295 134512640 135726644 3221224576 3221222704 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186080 176752 300 300 0 185780 0
vsize: 744320
[startup+103.611 s]
Raw data (loadavg): 1.00 0.97 0.91 1/53 19360
Raw data (stat): 19360 (pb2sat) R 19359 3944 3943 0 -1 0 266818 0 0 0 9428 572 0 0 25 0 1 0 806725858 762183680 176752 4294967295 134512640 135726644 3221224576 3221222704 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186080 176752 300 300 0 185780 0
vsize: 0

Child status: 1
Real time (s): 103.61
CPU time (s): 103.613
CPU user time (s): 97.5272
CPU system time (s): 6.08607
CPU usage (%): 100.003
Max. virtual memory (Kb): 744320
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####