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/miplib2003/normalized-mps-v2-20-10-dano3mip.opb
MD5SUM07b8540d5ec185750fee03977f8da675
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 30
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 67108864000
Number of bits of the biggest number in a constraint 36
Biggest sum of numbers in a constraint 569083166190
Number of bits of the biggest sum of numbers40
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark17.1024
Number of variables399966
Total number of constraints3778
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)600
Number of constraints which are nor clauses,nor cardinality constraints3178
Minimum length of a constraint1
Maximum length of a constraint15900

Trace number 28474

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc7 THE 2005-05-25 02:41:49 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=12495 boxname=wulflinc7 idbench=962 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  07b8540d5ec185750fee03977f8da675  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-dano3mip.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-dano3mip.opb
IDLAUNCH: 12495
/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:        819940 kB
Buffers:         10196 kB
Cached:         184116 kB
SwapCached:        644 kB
Active:          71624 kB
Inactive:       124940 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        819688 kB
SwapTotal:     2097136 kB
SwapFree:      2095780 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           5496 kB
Slab:            12452 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-25 02:43:57 (client local time) WITH STATUS 0 IN 127.077 SECONDS
stats: 12495 7 127.077 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
free(): invalid pointer 0x8929b70!
c ERROR Parsing file!!!
c ERROR parsing line: +125*x1_bit_10 +250*x1_bit_9 +500*x1_bit_8 +1000*x1_bit_7 +2000*x1_bit_6 +4000*x1_bit_5 +8000*x1_bit_4 +16000*x1_bit_3 +32000*x1_bit_2 +64000*x1_bit_1 +128000*x1_bit0 +256000*x1_bit1 +512000*x1_bit2 +1024000*x1_bit3 +2048000*x1_bit4 +4096000*x1_bit5 +8192000*x1_bit6 +16384000*x1_bit7 +32768000*x1_bit8 +65536000*x1_bit9 +131072000*x1_bit10 +262144000*x1_bit11 +524288000*x1_bit12 +1048576000*x1_bit13 +2097152000*x1_bit14 +4194304000*x1_bit15 +8388608000*x1_bit16 +16777216000*x1_bit17 +33554432000*x1_bit18 +67108864000*x1_bit19 +69541376*x2_bit0 -125*x554_bit_10 -250*x554_bit_9 -500*x554_bit_8 -1000*x554_bit_7 -2000*x554_bit_6 -4000*x554_bit_5 -8000*x554_bit_4 -16000*x554_bit_3 -32000*x554_bit_2 -64000*x554_bit_1 -128000*x554_bit0 -256000*x554_bit1 -512000*x554_bit2 -1024000*x554_bit3 -2048000*x554_bit4 -4096000*x554_bit5 -8192000*x554_bit6 -16384000*x554_bit7 -32768000*x554_bit8 -65536000*x554_bit9 -131072000*x554_bit10 -262144000*x554_bit11 -524288000*x554_bit12 -1048576000*x554_bit13 -2097152000*x554_bit14 -4194304000*x554_bit15 -8388608000*x554_bit16 -16777216000*x554_bit17 -33554432000*x554_bit18 -67108864000*x554_bit19 >= +69541376;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-dano3mip.opb
s UNKNOWN
c Exit Code: 0
c Total time: 126.792 s
#### 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
Raw data (loadavg): 0.94 0.97 0.91 2/54 3955
Raw data (stat): 3955 (runsolver) R 3954 24300 24299 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 777147123 1052672 99 4294967295 134512640 135381576 3221224480 3221219692 135158418 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0001 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 39266 0 0 0 908 89 0 0 25 0 1 0 777147123 173092864 38820 4294967295 134512640 134714508 3221224576 3221222852 1077414351 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 42259 38820 1111 63 0 42196 0
vsize: 169036
[startup+20.0008 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 52635 0 0 0 1881 117 0 0 25 0 1 0 777147123 227516416 52189 4294967295 134512640 134714508 3221224576 3221223144 134538739 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 55546 52189 1111 63 0 55483 0
vsize: 222184
[startup+30.0007 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 63621 0 0 0 2859 138 0 0 25 0 1 0 777147123 272306176 63175 4294967295 134512640 134714508 3221224576 3221222860 1077399562 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 66481 63175 1111 63 0 66418 0
vsize: 265924
[startup+40.001 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 75905 0 0 0 3833 164 0 0 25 0 1 0 777147123 320360448 74597 4294967295 134512640 134714508 3221224576 3221222880 134567410 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 78213 74597 1111 63 0 78150 0
vsize: 312852
[startup+50.002 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 85399 0 0 0 4813 184 0 0 25 0 1 0 777147123 359043072 84091 4294967295 134512640 134714508 3221224576 3221222852 1077414401 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 87657 84091 1111 63 0 87594 0
vsize: 350628
[startup+60.0013 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 96384 0 0 0 5792 206 0 0 25 0 1 0 777147123 403783680 95076 4294967295 134512640 134714508 3221224576 3221222220 1076880066 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 98580 95076 1111 63 0 98517 0
vsize: 394320
[startup+70.0019 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 106054 0 0 0 6775 223 0 0 25 0 1 0 777147123 443113472 104746 4294967295 134512640 134714508 3221224576 3221222860 1077399562 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 108182 104746 1111 63 0 108119 0
vsize: 432728
[startup+80.0027 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 116024 0 0 0 7754 243 0 0 25 0 1 0 777147123 483778560 114716 4294967295 134512640 134714508 3221224576 3221222852 1077414422 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 118110 114716 1111 63 0 118047 0
vsize: 472440
[startup+90.0022 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 125620 0 0 0 8735 262 0 0 25 0 1 0 777147123 522911744 124312 4294967295 134512640 134714508 3221224576 3221222912 1077314133 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 127664 124312 1111 63 0 127601 0
vsize: 510656
[startup+100.003 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 135399 0 0 0 9717 280 0 0 25 0 1 0 777147123 558772224 133119 4294967295 134512640 134714508 3221224576 3221222860 1077399562 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 136419 133119 1111 63 0 136356 0
vsize: 545676
[startup+110.003 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 141418 0 0 0 10704 294 0 0 25 0 1 0 777147123 583327744 138385 4294967295 134512640 134714508 3221224576 3221222852 1077414338 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 142414 138385 1111 63 0 142351 0
vsize: 569656
[startup+120.003 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 148708 0 0 0 11687 311 0 0 25 0 1 0 777147123 612995072 145675 4294967295 134512640 134714508 3221224576 3221222868 134566778 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 149657 145675 1111 63 0 149594 0
vsize: 598628
[startup+127.098 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 3955
Raw data (stat): 3955 (bsolo_lpr_cuts) R 3954 24300 24299 0 -1 0 148708 0 0 0 11687 311 0 0 25 0 1 0 777147123 612995072 145675 4294967295 134512640 134714508 3221224576 3221222868 134566778 0 0 7 0 0 0 0 17 0 0 0
Raw data (statm): 149657 145675 1111 63 0 149594 0
vsize: 0

Child status: 0
Real time (s): 127.097
CPU time (s): 127.077
CPU user time (s): 123.626
CPU system time (s): 3.45048
CPU usage (%): 99.9838
Max. virtual memory (Kb): 598628
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####