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-mitre.opb
MD5SUMcb52c3dd346b4d656b5e715b686fba39
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 8401
Optimality of the best value was proved NO
Number of terms in the objective function 9324
Biggest coefficient in the objective function 213
Number of bits for the biggest coefficient in the objective function 8
Sum of the numbers in the objective function 909647
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 1069
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 909647
Number of bits of the biggest sum of numbers20
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1189.27
Number of variables10724
Total number of constraints12778
Number of constraints which are clauses140
Number of constraints which are cardinality constraints (but not clauses)12255
Number of constraints which are nor clauses,nor cardinality constraints383
Minimum length of a constraint1
Maximum length of a constraint98

Trace number 35266 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-28 12:36:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24575 boxname=wulflinc27 idbench=1047 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  cb52c3dd346b4d656b5e715b686fba39  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-mitre.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-mitre.opb
IDLAUNCH: 24575
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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	: 3
cpu MHz		: 451.169
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:        715324 kB
Buffers:         34200 kB
Cached:         254504 kB
SwapCached:        704 kB
Active:          21840 kB
Inactive:       269004 kB
HighTotal:      131008 kB
HighFree:        46816 kB
LowTotal:       903652 kB
LowFree:        668508 kB
SwapTotal:     2097892 kB
SwapFree:      2096316 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5128 kB
Slab:            22752 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:38:48 (client local time) WITH STATUS 1 IN 112.853 SECONDS
stats: 24575 7 112.853 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 2/54 19901
Raw data (stat): 19901 (runsolver) R 19900 3394 3393 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864849226 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+10.0011 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 22567 0 0 0 945 53 0 0 25 0 1 0 864849226 67309568 14538 4294967295 134512640 135726644 3221224576 3218377464 135280844 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 16433 14538 300 300 0 16133 0
vsize: 65732
[startup+20.0018 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 53957 0 0 0 1883 116 0 0 25 0 1 0 864849226 175321088 31632 4294967295 134512640 135726644 3221224576 3218119356 134783977 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42803 31632 300 300 0 42503 0
vsize: 171212
[startup+30.0027 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 82773 0 0 0 2824 174 0 0 25 0 1 0 864849226 247672832 50517 4294967295 134512640 135726644 3221224576 3218598952 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 60467 50517 300 300 0 60167 0
vsize: 241868
[startup+40.0021 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 111276 0 0 0 3760 238 0 0 25 0 1 0 864849226 349941760 66521 4294967295 134512640 135726644 3221224576 3218476080 134783176 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85435 66521 300 300 0 85135 0
vsize: 341740
[startup+50.0034 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 140411 0 0 0 4702 297 0 0 25 0 1 0 864849226 538238976 95120 4294967295 134512640 135726644 3221224576 3219011760 134771640 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 131406 95120 300 300 0 131106 0
vsize: 525624
[startup+60.0041 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 191502 0 0 0 5600 400 0 0 25 0 1 0 864849226 699760640 126955 4294967295 134512640 135726644 3221224576 3219240192 134784885 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 170840 126955 300 300 0 170540 0
vsize: 683360
[startup+70.0045 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 203594 0 0 0 6569 430 0 0 25 0 1 0 864849226 632647680 114266 4294967295 134512640 135726644 3221224576 3219628512 135278584 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154455 114266 300 300 0 154155 0
vsize: 617820
[startup+80.0059 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 223045 0 0 0 7528 471 0 0 25 0 1 0 864849226 656842752 133478 4294967295 134512640 135726644 3221224576 3220905832 134728571 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 160362 133478 300 300 0 160062 0
vsize: 641448
[startup+90.0057 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 244398 0 0 0 8483 517 0 0 25 0 1 0 864849226 689147904 154586 4294967295 134512640 135726644 3221224576 3219068632 135281278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168249 154586 300 300 0 167949 0
vsize: 672996
[startup+100.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 260707 0 0 0 9445 555 0 0 25 0 1 0 864849226 762863616 170707 4294967295 134512640 135726644 3221224576 3218408892 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186246 170707 300 300 0 185946 0
vsize: 744984
[startup+110.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 263681 0 0 0 10423 577 0 0 25 0 1 0 864849226 407113728 98952 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 99393 98952 300 300 0 99093 0
vsize: 397572
[startup+112.857 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 19901
Raw data (stat): 19901 (pb2sat) R 19900 3394 3393 0 -1 0 263681 0 0 0 10423 577 0 0 25 0 1 0 864849226 407113728 98952 4294967295 134512640 135726644 3221224576 3221222976 134778976 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 99393 98952 300 300 0 99093 0
vsize: 0

Child status: 1
Real time (s): 112.856
CPU time (s): 112.853
CPU user time (s): 106.885
CPU system time (s): 5.96809
CPU usage (%): 99.9971
Max. virtual memory (Kb): 744984
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####