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-swath3.opb
MD5SUMbc671f4c524beaee23c3249abe841ea7
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 1048576000000
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 197065212145430
Number of bits of the biggest sum of numbers48
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.11168
Number of variables36471
Total number of constraints7608
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)2915
Number of constraints which are nor clauses,nor cardinality constraints4693
Minimum length of a constraint1
Maximum length of a constraint34870

Trace number 35744 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-05-28 14:00:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25056 boxname=wulflinc7 idbench=1528 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  bc671f4c524beaee23c3249abe841ea7  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-swath3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-13-7-swath3.opb
IDLAUNCH: 25056
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.050
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		: 451.050
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:        720248 kB
Buffers:         33476 kB
Cached:         259096 kB
SwapCached:        644 kB
Active:          25096 kB
Inactive:       269520 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        719996 kB
SwapTotal:     2097136 kB
SwapFree:      2095560 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5108 kB
Slab:            14084 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 14:02:39 (client local time) WITH STATUS 1 IN 125.382 SECONDS
stats: 25056 7 125.382 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 0.93 0.90 2/54 11040
Raw data (stat): 11040 (runsolver) R 11039 24300 24299 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 807143853 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+10.001 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 11040
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 7428 0 0 0 983 16 0 0 25 0 1 0 807143853 24875008 4353 4294967295 134512640 135726644 3221224592 3221221744 134606965 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 6073 4353 300 300 0 5773 0
vsize: 24292
[startup+20.0015 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 11040
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 7470 0 0 0 1982 17 0 0 25 0 1 0 807143853 24875008 4395 4294967295 134512640 135726644 3221224592 3221221680 134556171 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 6073 4395 300 300 0 5773 0
vsize: 24292
[startup+30.0021 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 11040
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 21292 0 0 0 2952 47 0 0 25 0 1 0 807143853 71671808 13414 4294967295 134512640 135726644 3221224592 3208882308 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 17498 13414 300 300 0 17198 0
vsize: 69992
[startup+40.0028 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 11040
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 46527 0 0 0 3898 102 0 0 25 0 1 0 807143853 139878400 30465 4294967295 134512640 135726644 3221224592 3208891984 134728578 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 34150 30466 300 300 0 33850 0
vsize: 136600
[startup+50.0034 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 11042
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 80020 0 0 0 4826 173 0 0 25 0 1 0 807143853 252137472 47886 4294967295 134512640 135726644 3221224592 3208329112 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 61557 47886 300 300 0 61257 0
vsize: 246228
[startup+60.0041 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 11042
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 109267 0 0 0 5759 241 0 0 25 0 1 0 807143853 323284992 64587 4294967295 134512640 135726644 3221224592 3209204424 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 78927 64587 300 300 0 78627 0
vsize: 315708
[startup+70.0036 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 11042
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 144085 0 0 0 6690 310 0 0 25 0 1 0 807143853 553381888 98506 4294967295 134512640 135726644 3221224592 3207825320 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135103 98508 300 300 0 134803 0
vsize: 540412
[startup+80.0043 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 11042
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 161782 0 0 0 7653 348 0 0 25 0 1 0 807143853 492617728 98270 4294967295 134512640 135726644 3221224592 3208023512 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120268 98271 300 300 0 119968 0
vsize: 481072
[startup+90.0039 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11042
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 200340 0 0 0 8565 435 0 0 25 0 1 0 807143853 606257152 112018 4294967295 134512640 135726644 3221224592 3210485112 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 148012 112018 300 300 0 147712 0
vsize: 592048
[startup+100.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11042
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 217108 0 0 0 9530 471 0 0 25 0 1 0 807143853 666439680 128562 4294967295 134512640 135726644 3221224592 3210323440 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162705 128562 300 300 0 162405 0
vsize: 650820
[startup+110.004 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11042
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 236942 0 0 0 10488 513 0 0 25 0 1 0 807143853 697798656 148131 4294967295 134512640 135726644 3221224592 3208967416 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170361 148131 300 300 0 170061 0
vsize: 681444
[startup+120.005 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 11042
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 246388 0 0 0 11468 533 0 0 25 0 1 0 807143853 717393920 157340 4294967295 134512640 135726644 3221224592 3221222844 135277563 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 175145 157340 300 300 0 174845 0
vsize: 700580
[startup+125.374 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 11042
Raw data (stat): 11040 (pb2sat) R 11039 24300 24299 0 -1 0 246388 0 0 0 11468 533 0 0 25 0 1 0 807143853 717393920 157340 4294967295 134512640 135726644 3221224592 3221222844 135277563 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 175145 157340 300 300 0 174845 0
vsize: 0

Child status: 1
Real time (s): 125.374
CPU time (s): 125.382
CPU user time (s): 119.729
CPU system time (s): 5.65314
CPU usage (%): 100.006
Max. virtual memory (Kb): 700580
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####