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-v2-13-7/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-qap10.opb
MD5SUM8504dbc55a414805ff1a65155550ce21
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 184
Optimality of the best value was proved NO
Number of terms in the objective function 33930
Biggest coefficient in the objective function 204800
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 188622348
Number of bits of the sum of numbers in the objective function 28
Biggest number in a constraint 204800
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 188622348
Number of bits of the biggest sum of numbers28
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1175.33
Number of variables53950
Total number of constraints1820
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 constraints1820
Minimum length of a constraint130
Maximum length of a constraint130

Trace number 35741 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc15 THE 2005-05-28 13:59:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25051 boxname=wulflinc15 idbench=1523 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8504dbc55a414805ff1a65155550ce21  /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-13-7-qap10.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-13-7-qap10.opb
IDLAUNCH: 25051
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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		: 450.999
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:        701504 kB
Buffers:         34376 kB
Cached:         275712 kB
SwapCached:        604 kB
Active:          64304 kB
Inactive:       247916 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        701252 kB
SwapTotal:     2097136 kB
SwapFree:      2095616 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5120 kB
Slab:            15312 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 14:01:52 (client local time) WITH STATUS 1 IN 129.51 SECONDS
stats: 25051 7 129.51 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): 0.90 0.93 0.90 1/54 4978
Raw data (stat): 4978 (runsolver) R 4977 23514 23513 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 807124003 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+10.001 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 4978
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 2204 0 0 0 994 4 0 0 25 0 1 0 807124003 8089600 1529 4294967295 134512640 135726644 3221224576 3221221664 134556179 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1975 1529 300 300 0 1675 0
vsize: 7900
[startup+20.0013 s]
Raw data (loadavg): 0.93 0.93 0.91 2/54 4978
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 2741 0 0 0 1993 6 0 0 25 0 1 0 807124003 9441280 2057 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 2305 2057 300 300 0 2005 0
vsize: 9220
[startup+30.0014 s]
Raw data (loadavg): 1.09 0.97 0.92 2/54 5031
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 25435 0 0 0 2937 61 0 0 25 0 1 0 807124003 81317888 17405 4294967295 134512640 135726644 3221224576 3209335392 134784413 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19853 17405 300 300 0 19553 0
vsize: 79412
[startup+40.0022 s]
Raw data (loadavg): 1.07 0.97 0.92 2/54 5031
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 56767 0 0 0 3870 127 0 0 25 0 1 0 807124003 188518400 34450 4294967295 134512640 135726644 3221224576 3208864760 135280687 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 46025 34450 300 300 0 45725 0
vsize: 184100
[startup+50.0036 s]
Raw data (loadavg): 1.06 0.97 0.92 2/54 5031
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 86413 0 0 0 4810 188 0 0 25 0 1 0 807124003 264249344 54176 4294967295 134512640 135726644 3221224576 3208445280 134782666 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 64514 54176 300 300 0 64214 0
vsize: 258056
[startup+60.0036 s]
Raw data (loadavg): 1.05 0.97 0.92 2/54 5031
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 113344 0 0 0 5750 248 0 0 25 0 1 0 807124003 359624704 68610 4294967295 134512640 135726644 3221224576 3208824528 134554718 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 87799 68610 300 300 0 87499 0
vsize: 351196
[startup+70.0035 s]
Raw data (loadavg): 1.04 0.97 0.92 2/54 5031
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 136490 0 0 0 6696 302 0 0 25 0 1 0 807124003 536027136 91434 4294967295 134512640 135726644 3221224576 3211058160 134771720 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 130866 91436 300 300 0 130566 0
vsize: 523464
[startup+80.0043 s]
Raw data (loadavg): 1.04 0.97 0.92 2/54 5031
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 195198 0 0 0 7577 421 0 0 25 0 1 0 807124003 612290560 106087 4294967295 134512640 135726644 3221224576 3209830028 135298010 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 149485 106087 300 300 0 149185 0
vsize: 597940
[startup+90.0041 s]
Raw data (loadavg): 1.03 0.97 0.92 2/54 5031
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 207195 0 0 0 8549 449 0 0 25 0 1 0 807124003 645844992 117873 4294967295 134512640 135726644 3221224576 3208629680 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 157677 117873 300 300 0 157377 0
vsize: 630708
[startup+100.005 s]
Raw data (loadavg): 1.02 0.97 0.92 2/54 5033
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 226352 0 0 0 9505 494 0 0 25 0 1 0 807124003 668553216 136790 4294967295 134512640 135726644 3221224576 3210331264 134767231 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163221 136790 300 300 0 162921 0
vsize: 652884
[startup+110.006 s]
Raw data (loadavg): 1.02 0.97 0.92 2/54 5033
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 246882 0 0 0 10460 539 0 0 25 0 1 0 807124003 698155008 157084 4294967295 134512640 135726644 3221224576 3210220552 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 170448 157084 300 300 0 170148 0
vsize: 681792
[startup+120.007 s]
Raw data (loadavg): 1.02 0.97 0.92 2/54 5033
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 263267 0 0 0 11425 574 0 0 25 0 1 0 807124003 771870720 173281 4294967295 134512640 135726644 3221224576 3208434632 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 188445 173282 300 300 0 188145 0
vsize: 753780
[startup+129.534 s]
Raw data (loadavg): 1.01 0.97 0.92 1/53 5033
Raw data (stat): 4978 (pb2sat) R 4977 23514 23513 0 -1 0 263267 0 0 0 11425 574 0 0 25 0 1 0 807124003 771870720 173281 4294967295 134512640 135726644 3221224576 3208434632 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 188445 173282 300 300 0 188145 0
vsize: 0

Child status: 1
Real time (s): 129.534
CPU time (s): 129.51
CPU user time (s): 123.301
CPU system time (s): 6.20906
CPU usage (%): 99.9819
Max. virtual memory (Kb): 753780
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####