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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-scrs8.opb
MD5SUM5dc586d2135331b914090f6587c7f4ee
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 24750
Biggest coefficient in the objective function 284830543390965760000
Number of bits for the biggest coefficient in the objective function 68
Sum of the numbers in the objective function 7193462013935082274816
Number of bits of the sum of numbers in the objective function 73
Biggest number in a constraint 284830543390965760000
Number of bits of the biggest number in a constraint 68
Biggest sum of numbers in a constraint 7193462013935082274816
Number of bits of the biggest sum of numbers73
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.300953
Number of variables35070
Total number of constraints490
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 constraints490
Minimum length of a constraint30
Maximum length of a constraint1110

Trace number 41015 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-09 04:18:51 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=29083 boxname=wulflinc5 idbench=867 idsolver=21 numberseed=0
MD5SUM SOLVER: 174a32271cb3bba0a277d6d7724e60fb  /oldhome/oroussel/solvers/bsolo_lpr_cuts-v2
MD5SUM BENCH:  5dc586d2135331b914090f6587c7f4ee  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-scrs8.opb
REAL COMMAND:  bsolo_lpr_cuts-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-scrs8.opb
IDLAUNCH: 29083
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        753904 kB
Buffers:         24056 kB
Cached:         234700 kB
SwapCached:        732 kB
Active:          30180 kB
Inactive:       230612 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        753652 kB
SwapTotal:     2097136 kB
SwapFree:      2095460 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           5072 kB
Slab:            14412 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-09 04:22:40 (client local time) WITH STATUS 0 IN 228.152 SECONDS
stats: 29083 7 228.152 0
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c INFO: OSL Context initialized.
c ERROR Parsing file!!!
c ERROR parsing line: +211*PCADVX00_bit_10 +422*PCADVX00_bit_9 +844*PCADVX00_bit_8 +1688*PCADVX00_bit_7 +3376*PCADVX00_bit_6 +6752*PCADVX00_bit_5 +13504*PCADVX00_bit_4 +27008*PCADVX00_bit_3 +54016*PCADVX00_bit_2 +108032*PCADVX00_bit_1 +216064*PCADVX00_bit0 +432128*PCADVX00_bit1 +864256*PCADVX00_bit2 +1728512*PCADVX00_bit3 +3457024*PCADVX00_bit4 +6914048*PCADVX00_bit5 +13828096*PCADVX00_bit6 +27656192*PCADVX00_bit7 +55312384*PCADVX00_bit8 +110624768*PCADVX00_bit9 +221249536*PCADVX00_bit10 +442499072*PCADVX00_bit11 +884998144*PCADVX00_bit12 +1769996288*PCADVX00_bit13 +3539992576*PCADVX00_bit14 +7079985152*PCADVX00_bit15 +14159970304*PCADVX00_bit16 +28319940608*PCADVX00_bit17 +56639881216*PCADVX00_bit18 +113279762432*PCADVX00_bit19 -250*PCADVX05_bit_10 -500*PCADVX05_bit_9 -1000*PCADVX05_bit_8 -2000*PCADVX05_bit_7 -4000*PCADVX05_bit_6 -8000*PCADVX05_bit_5 -16000*PCADVX05_bit_4 -32000*PCADVX05_bit_3 -64000*PCADVX05_bit_2 -128000*PCADVX05_bit_1 -256000*PCADVX05_bit0 -512000*PCADVX05_bit1 -1024000*PCADVX05_bit2 -2048000*PCADVX05_bit3 -4096000*PCADVX05_bit4 -8192000*PCADVX05_bit5 -16384000*PCADVX05_bit6 -32768000*PCADVX05_bit7 -65536000*PCADVX05_bit8 -131072000*PCADVX05_bit9 -262144000*PCADVX05_bit10 -524288000*PCADVX05_bit11 -1048576000*PCADVX05_bit12 -2097152000*PCADVX05_bit13 -4194304000*PCADVX05_bit14 -8388608000*PCADVX05_bit15 -16777216000*PCADVX05_bit16 -33554432000*PCADVX05_bit17 -67108864000*PCADVX05_bit18 -134217728000*PCADVX05_bit19 = +0;
c Cannot parse input file name: /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-scrs8.opb
s UNKNOWN
c Exit Code: 0
c Total time: 228.122 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
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.64 0.77 0.84 1/54 27669
Raw data (stat): 27669 (runsolver) R 27668 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 907338675 884736 94 4294967295 134512640 135332820 3221224448 3221219628 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+10.0008 s]
Raw data (loadavg): 0.70 0.78 0.84 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 875 0 0 0 994 3 0 0 25 0 1 0 907338675 16089088 795 4294967295 134512640 134716908 3221224560 3221222788 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3928 795 1111 63 0 3865 0
vsize: 15712
[startup+20.0011 s]
Raw data (loadavg): 0.74 0.78 0.84 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 1028 0 0 0 1994 3 0 0 25 0 1 0 907338675 16687104 948 4294967295 134512640 134716908 3221224560 3221222788 1077414433 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4074 948 1111 63 0 4011 0
vsize: 16296
[startup+30.0009 s]
Raw data (loadavg): 0.78 0.79 0.84 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 1164 0 0 0 2993 4 0 0 25 0 1 0 907338675 17272832 1084 4294967295 134512640 134716908 3221224560 3221222788 1077414345 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4217 1084 1111 63 0 4154 0
vsize: 16868
[startup+40.001 s]
Raw data (loadavg): 0.81 0.80 0.84 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 1371 0 0 0 3993 5 0 0 25 0 1 0 907338675 17993728 1291 4294967295 134512640 134716908 3221224560 3221222788 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4393 1291 1111 63 0 4330 0
vsize: 17572
[startup+50.0013 s]
Raw data (loadavg): 0.84 0.80 0.84 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 1661 0 0 0 4992 6 0 0 25 0 1 0 907338675 19193856 1581 4294967295 134512640 134716908 3221224560 3221222788 1077414393 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4686 1581 1111 63 0 4623 0
vsize: 18744
[startup+60.0021 s]
Raw data (loadavg): 0.87 0.81 0.84 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 1979 0 0 0 5992 6 0 0 25 0 1 0 907338675 20545536 1899 4294967295 134512640 134716908 3221224560 3221222788 1077414336 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5016 1899 1111 63 0 4953 0
vsize: 20064
[startup+70.0033 s]
Raw data (loadavg): 0.89 0.81 0.84 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 2302 0 0 0 6992 7 0 0 25 0 1 0 907338675 21901312 2222 4294967295 134512640 134716908 3221224560 3221222788 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5347 2222 1111 63 0 5284 0
vsize: 21388
[startup+80.0036 s]
Raw data (loadavg): 0.90 0.82 0.84 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 2677 0 0 0 7991 8 0 0 25 0 1 0 907338675 23400448 2597 4294967295 134512640 134716908 3221224560 3221222788 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5713 2597 1111 63 0 5650 0
vsize: 22852
[startup+90.0034 s]
Raw data (loadavg): 0.92 0.83 0.84 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 3051 0 0 0 8990 8 0 0 25 0 1 0 907338675 24895488 2971 4294967295 134512640 134716908 3221224560 3221222788 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6078 2971 1111 63 0 6015 0
vsize: 24312
[startup+100.004 s]
Raw data (loadavg): 0.93 0.83 0.85 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 3435 0 0 0 9989 9 0 0 25 0 1 0 907338675 26550272 3355 4294967295 134512640 134716908 3221224560 3221222788 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6482 3355 1111 63 0 6419 0
vsize: 25928
[startup+110.004 s]
Raw data (loadavg): 0.94 0.84 0.85 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 3841 0 0 0 10989 10 0 0 25 0 1 0 907338675 28180480 3761 4294967295 134512640 134716908 3221224560 3221222788 1077414420 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6880 3761 1111 63 0 6817 0
vsize: 27520
[startup+120.005 s]
Raw data (loadavg): 0.95 0.84 0.85 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 4261 0 0 0 11987 12 0 0 25 0 1 0 907338675 29835264 4181 4294967295 134512640 134716908 3221224560 3221222788 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7284 4181 1111 63 0 7221 0
vsize: 29136
[startup+130.005 s]
Raw data (loadavg): 0.96 0.85 0.85 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 4698 0 0 0 12986 13 0 0 25 0 1 0 907338675 31678464 4618 4294967295 134512640 134716908 3221224560 3221222788 1077414410 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7734 4618 1111 63 0 7671 0
vsize: 30936
[startup+140.005 s]
Raw data (loadavg): 0.96 0.85 0.85 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 5148 0 0 0 13985 14 0 0 25 0 1 0 907338675 33632256 5068 4294967295 134512640 134716908 3221224560 3221222788 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8211 5068 1111 63 0 8148 0
vsize: 32844
[startup+150.005 s]
Raw data (loadavg): 0.97 0.85 0.85 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 5634 0 0 0 14985 14 0 0 25 0 1 0 907338675 35590144 5554 4294967295 134512640 134716908 3221224560 3221222788 1077414358 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8689 5554 1111 63 0 8626 0
vsize: 34756
[startup+160.006 s]
Raw data (loadavg): 0.97 0.86 0.85 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 6196 0 0 0 15983 16 0 0 25 0 1 0 907338675 37847040 6116 4294967295 134512640 134716908 3221224560 3221222788 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9240 6116 1111 63 0 9177 0
vsize: 36960
[startup+170.007 s]
Raw data (loadavg): 0.98 0.86 0.85 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 6763 0 0 0 16983 17 0 0 25 0 1 0 907338675 40103936 6683 4294967295 134512640 134716908 3221224560 3221222788 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9791 6683 1111 63 0 9728 0
vsize: 39164
[startup+180.006 s]
Raw data (loadavg): 0.98 0.87 0.85 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 7448 0 0 0 17981 18 0 0 25 0 1 0 907338675 42934272 7368 4294967295 134512640 134716908 3221224560 3221223216 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10482 7368 1111 63 0 10419 0
vsize: 41928
[startup+190.006 s]
Raw data (loadavg): 0.98 0.87 0.85 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 8289 0 0 0 18980 20 0 0 25 0 1 0 907338675 46395392 8209 4294967295 134512640 134716908 3221224560 3221222788 1077414358 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 11327 8209 1111 63 0 11264 0
vsize: 45308
[startup+200.007 s]
Raw data (loadavg): 0.98 0.87 0.85 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 9228 0 0 0 19978 22 0 0 25 0 1 0 907338675 50376704 9148 4294967295 134512640 134716908 3221224560 3221223216 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 12299 9148 1111 63 0 12236 0
vsize: 49196
[startup+210.007 s]
Raw data (loadavg): 0.99 0.88 0.86 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 10291 0 0 0 20975 25 0 0 25 0 1 0 907338675 54714368 10211 4294967295 134512640 134716908 3221224560 3221223216 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 13358 10211 1111 63 0 13295 0
vsize: 53432
[startup+220.007 s]
Raw data (loadavg): 0.99 0.88 0.86 2/54 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 11576 0 0 0 21972 28 0 0 25 0 1 0 907338675 59985920 11496 4294967295 134512640 134716908 3221224560 3221223216 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 14645 11496 1111 63 0 14582 0
vsize: 58580
[startup+228.153 s]
Raw data (loadavg): 0.99 0.88 0.86 1/53 27669
Raw data (stat): 27669 (bsolo_lpr_cuts-) R 27668 7266 7265 0 -1 0 11576 0 0 0 21972 28 0 0 25 0 1 0 907338675 59985920 11496 4294967295 134512640 134716908 3221224560 3221223216 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 14645 11496 1111 63 0 14582 0
vsize: 0

Child status: 0
Real time (s): 228.153
CPU time (s): 228.152
CPU user time (s): 227.815
CPU system time (s): 0.336948
CPU usage (%): 99.9996
Max. virtual memory (Kb): 58580
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####