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/MIPLIB/miplib2003/normalized-mps-v2-13-7-gesa2.opb
MD5SUMa1d50263b520d58c9e2807bbf8bc2f07
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 9432
Biggest coefficient in the objective function 409031671808
Number of bits for the biggest coefficient in the objective function 39
Sum of the numbers in the objective function 179181298104960
Number of bits of the sum of numbers in the objective function 48
Biggest number in a constraint 409031671808
Number of bits of the biggest number in a constraint 39
Biggest sum of numbers in a constraint 179181298104960
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 benchmark0.120981
Number of variables13368
Total number of constraints2112
Number of constraints which are clauses48
Number of constraints which are cardinality constraints (but not clauses)240
Number of constraints which are nor clauses,nor cardinality constraints1824
Minimum length of a constraint1
Maximum length of a constraint209

Trace number 27292

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-05-24 20:54:56 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=17552 boxname=wulflinc2 idbench=1351 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  a1d50263b520d58c9e2807bbf8bc2f07  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-gesa2.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-gesa2.opb
IDLAUNCH: 17552
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        682944 kB
Buffers:         32780 kB
Cached:         298124 kB
SwapCached:        868 kB
Active:          40464 kB
Inactive:       293040 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        682692 kB
SwapTotal:     2097136 kB
SwapFree:      2095788 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5620 kB
Slab:            12484 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 20:55:09 (client local time) WITH STATUS 0 IN 12.2571 SECONDS
stats: 17552 7 12.2571 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c ERROR Parsing file!!!
c ERROR parsing line: +200000*x4_bit_7 +400000*x4_bit_6 +800000*x4_bit_5 +1600000*x4_bit_4 +3200000*x4_bit_3 +6400000*x4_bit_2 +12800000*x4_bit_1 +25600000*x4_bit0 +51200000*x4_bit1 +102400000*x4_bit2 +204800000*x4_bit3 +409600000*x4_bit4 +819200000*x4_bit5 +1638400000*x4_bit6 +3276800000*x4_bit7 +6553600000*x4_bit8 +13107200000*x4_bit9 +26214400000*x4_bit10 +52428800000*x4_bit11 +104857600000*x4_bit12 +200000*x7_bit_7 +400000*x7_bit_6 +800000*x7_bit_5 +1600000*x7_bit_4 +3200000*x7_bit_3 +6400000*x7_bit_2 +12800000*x7_bit_1 +25600000*x7_bit0 +51200000*x7_bit1 +102400000*x7_bit2 +204800000*x7_bit3 +409600000*x7_bit4 +819200000*x7_bit5 +1638400000*x7_bit6 +3276800000*x7_bit7 +6553600000*x7_bit8 +13107200000*x7_bit9 +26214400000*x7_bit10 +52428800000*x7_bit11 +104857600000*x7_bit12 +200000*x10_bit_7 +400000*x10_bit_6 +800000*x10_bit_5 +1600000*x10_bit_4 +3200000*x10_bit_3 +6400000*x10_bit_2 +12800000*x10_bit_1 +25600000*x10_bit0 +51200000*x10_bit1 +102400000*x10_bit2 +204800000*x10_bit3 +409600000*x10_bit4 +819200000*x10_bit5 +1638400000*x10_bit6 +3276800000*x10_bit7 +6553600000*x10_bit8 +13107200000*x10_bit9 +26214400000*x10_bit10 +52428800000*x10_bit11 +104857600000*x10_bit12 +192000*x12_bit_7 +384000*x12_bit_6 +768000*x12_bit_5 +1536000*x12_bit_4 +3072000*x12_bit_3 +6144000*x12_bit_2 +12288000*x12_bit_1 +24576000*x12_bit0 +49152000*x12_bit1 +98304000*x12_bit2 +196608000*x12_bit3 +393216000*x12_bit4 +786432000*x12_bit5 +1572864000*x12_bit6 +3145728000*x12_bit7 +6291456000*x12_bit8 +12582912000*x12_bit9 +25165824000*x12_bit10 +50331648000*x12_bit11 +100663296000*x12_bit12 +191000*x13_bit_7 +382000*x13_bit_6 +764000*x13_bit_5 +1528000*x13_bit_4 +3056000*x13_bit_3 +6112000*x13_bit_2 +12224000*x13_bit_1 +24448000*x13_bit0 +48896000*x13_bit1 +97792000*x13_bit2 +195584000*x13_bit3 +391168000*x13_bit4 +782336000*x13_bit5 +1564672000*x13_bit6 +3129344000*x13_bit7 +6258688000*x13_bit8 +12517376000*x13_bit9 +25034752000*x13_bit10 +50069504000*x13_bit11 +100139008000*x13_bit12 -3328000*x316_bit0 -5632000*x319_bit0 -11264000*x319_bit1 -6656000*x322_bit0 -13312000*x322_bit1 -102400000*x324_bit0 -115200000*x325_bit0 -230400000*x325_bit1 +192785*x937_bit_7 +385570*x937_bit_6 +771140*x937_bit_5 +1542280*x937_bit_4 +3084560*x937_bit_3 +6169120*x937_bit_2 +12338240*x937_bit_1 +24676480*x937_bit0 +49352960*x937_bit1 +98705920*x937_bit2 +197411840*x937_bit3 +394823680*x937_bit4 +789647360*x937_bit5 +1579294720*x937_bit6 +3158589440*x937_bit7 +6317178880*x937_bit8 +12634357760*x937_bit9 +25268715520*x937_bit10 +50537431040*x937_bit11 +101074862080*x937_bit12 +179741*x939_bit_7 +359482*x939_bit_6 +718964*x939_bit_5 +1437928*x939_bit_4 +2875856*x939_bit_3 +5751712*x939_bit_2 +11503424*x939_bit_1 +23006848*x939_bit0 +46013696*x939_bit1 +92027392*x939_bit2 +184054784*x939_bit3 +368109568*x939_bit4 +736219136*x939_bit5 +1472438272*x939_bit6 +2944876544*x939_bit7 +5889753088*x939_bit8 +11779506176*x939_bit9 +23559012352*x939_bit10 +47118024704*x939_bit11 +94236049408*x939_bit12 +194000*x1033_bit_7 +388000*x1033_bit_6 +776000*x1033_bit_5 +1552000*x1033_bit_4 +3104000*x1033_bit_3 +6208000*x1033_bit_2 +12416000*x1033_bit_1 +24832000*x1033_bit0 +49664000*x1033_bit1 +99328000*x1033_bit2 +198656000*x1033_bit3 +397312000*x1033_bit4 +794624000*x1033_bit5 +1589248000*x1033_bit6 +3178496000*x1033_bit7 +6356992000*x1033_bit8 +12713984000*x1033_bit9 +25427968000*x1033_bit10 +50855936000*x1033_bit11 +101711872000*x1033_bit12 -200000*x1035_bit_7 -400000*x1035_bit_6 -800000*x1035_bit_5 -1600000*x1035_bit_4 -3200000*x1035_bit_3 -6400000*x1035_bit_2 -12800000*x1035_bit_1 -25600000*x1035_bit0 -51200000*x1035_bit1 -102400000*x1035_bit2 -204800000*x1035_bit3 -409600000*x1035_bit4 -819200000*x1035_bit5 -1638400000*x1035_bit6 -3276800000*x1035_bit7 -6553600000*x1035_bit8 -13107200000*x1035_bit9 -26214400000*x1035_bit10 -52428800000*x1035_bit11 -104857600000*x1035_bit12 -200000*x1036_bit_7 -400000*x1036_bit_6 -800000*x1036_bit_5 -1600000*x1036_bit_4 -3200000*x1036_bit_3 -6400000*x1036_bit_2 -12800000*x1036_bit_1 -25600000*x1036_bit0 -51200000*x1036_bit1 -102400000*x1036_bit2 -204800000*x1036_bit3 -409600000*x1036_bit4 -819200000*x1036_bit5 -1638400000*x1036_bit6 -3276800000*x1036_bit7 -6553600000*x1036_bit8 -13107200000*x1036_bit9 -26214400000*x1036_bit10 -52428800000*x1036_bit11 -104857600000*x1036_bit12 -38400000*x1129_bit0 >= +5031168000;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-13-7-gesa2.opb
s UNKNOWN
c Exit Code: 0
c Total time: 12.231 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): 0.67 0.88 0.90 2/54 3294
Raw data (stat): 3294 (runsolver) R 3293 31399 31398 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 775060599 1052672 99 4294967295 134512640 135381576 3221224496 3221219708 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0007 s]
Raw data (loadavg): 0.72 0.88 0.90 2/54 3294
Raw data (stat): 3294 (bsolo_lpr_cuts) R 3293 31399 31398 0 -1 0 7302 0 0 0 982 14 0 0 25 0 1 0 775060599 42917888 7226 4294967295 134512640 134714508 3221224592 3221222708 1077314242 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10478 7226 1111 63 0 10415 0
vsize: 41912
[startup+12.284 s]
Raw data (loadavg): 0.74 0.89 0.90 1/53 3294
Raw data (stat): 3294 (bsolo_lpr_cuts) R 3293 31399 31398 0 -1 0 7302 0 0 0 982 14 0 0 25 0 1 0 775060599 42917888 7226 4294967295 134512640 134714508 3221224592 3221222708 1077314242 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10478 7226 1111 63 0 10415 0
vsize: 0

Child status: 0
Real time (s): 12.2833
CPU time (s): 12.2571
CPU user time (s): 12.0262
CPU system time (s): 0.230964
CPU usage (%): 99.7866
Max. virtual memory (Kb): 41912
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####