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 26736

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc11 THE 2005-05-24 17:03:32 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=11260 boxname=wulflinc11 idbench=867 idsolver=2 numberseed=0
MD5SUM SOLVER: 754786be69defe53c030aa54f111e0a7  /oldhome/oroussel/solvers/bsolo_lpr_cuts
MD5SUM BENCH:  5dc586d2135331b914090f6587c7f4ee  /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-scrs8.opb
REAL COMMAND:  bsolo_lpr_cuts /oldhome/oroussel/tmp/wulflinc11/normalized-mps-v2-20-10-scrs8.opb
IDLAUNCH: 11260
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.028
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		: 451.028
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:        661596 kB
Buffers:         38436 kB
Cached:         301820 kB
SwapCached:         84 kB
Active:          81732 kB
Inactive:       271140 kB
HighTotal:      131008 kB
HighFree:        12712 kB
LowTotal:       903652 kB
LowFree:        648884 kB
SwapTotal:     2097136 kB
SwapFree:      2097048 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6880 kB
Slab:            14476 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-24 17:07:04 (client local time) WITH STATUS 0 IN 211.441 SECONDS
stats: 11260 7 211.441 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/wulflinc11/normalized-mps-v2-20-10-scrs8.opb
s UNKNOWN
c Exit Code: 0
c Total time: 211.407 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): 0.61 0.86 0.92 2/54 28154
Raw data (stat): 28154 (runsolver) R 28153 25830 25829 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 773664903 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+10.0007 s]
Raw data (loadavg): 0.67 0.86 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 880 0 0 0 995 3 0 0 25 0 1 0 773664903 16089088 804 4294967295 134512640 134714508 3221224576 3221222804 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 3928 804 1111 63 0 3865 0
vsize: 15712
[startup+20.0015 s]
Raw data (loadavg): 0.72 0.86 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 1033 0 0 0 1994 3 0 0 25 0 1 0 773664903 16687104 957 4294967295 134512640 134714508 3221224576 3221222804 1077414426 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4074 957 1111 63 0 4011 0
vsize: 16296
[startup+30.0018 s]
Raw data (loadavg): 0.76 0.87 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 1162 0 0 0 2994 4 0 0 25 0 1 0 773664903 17272832 1086 4294967295 134512640 134714508 3221224576 3221222804 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4217 1086 1111 63 0 4154 0
vsize: 16868
[startup+40.0021 s]
Raw data (loadavg): 0.80 0.87 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 1383 0 0 0 3993 5 0 0 25 0 1 0 773664903 18145280 1307 4294967295 134512640 134714508 3221224576 3221222804 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4430 1307 1111 63 0 4367 0
vsize: 17720
[startup+50.0028 s]
Raw data (loadavg): 0.83 0.88 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 1674 0 0 0 4993 5 0 0 25 0 1 0 773664903 19341312 1598 4294967295 134512640 134714508 3221224576 3221222804 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 4722 1598 1111 63 0 4659 0
vsize: 18888
[startup+60.0032 s]
Raw data (loadavg): 0.85 0.88 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 1984 0 0 0 5992 6 0 0 25 0 1 0 773664903 20545536 1908 4294967295 134512640 134714508 3221224576 3221222804 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5016 1908 1111 63 0 4953 0
vsize: 20064
[startup+70.0034 s]
Raw data (loadavg): 0.88 0.88 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 2284 0 0 0 6991 7 0 0 25 0 1 0 773664903 21749760 2208 4294967295 134512640 134714508 3221224576 3221223232 134527932 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5310 2208 1111 63 0 5247 0
vsize: 21240
[startup+80.0042 s]
Raw data (loadavg): 0.89 0.89 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 2616 0 0 0 7989 9 0 0 25 0 1 0 773664903 23101440 2540 4294967295 134512640 134714508 3221224576 3221222804 1077414395 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 5640 2540 1111 63 0 5577 0
vsize: 22560
[startup+90.0036 s]
Raw data (loadavg): 0.91 0.89 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 2983 0 0 0 8989 9 0 0 25 0 1 0 773664903 24743936 2907 4294967295 134512640 134714508 3221224576 3221222804 1077414433 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6041 2907 1111 63 0 5978 0
vsize: 24164
[startup+100.005 s]
Raw data (loadavg): 0.92 0.89 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 3374 0 0 0 9988 10 0 0 25 0 1 0 773664903 26251264 3298 4294967295 134512640 134714508 3221224576 3221222804 1077414360 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6409 3298 1111 63 0 6346 0
vsize: 25636
[startup+110.006 s]
Raw data (loadavg): 0.93 0.90 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 3832 0 0 0 10988 11 0 0 25 0 1 0 773664903 28176384 3756 4294967295 134512640 134714508 3221224576 3221222804 1077414363 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 6879 3756 1111 63 0 6816 0
vsize: 27516
[startup+120.006 s]
Raw data (loadavg): 0.94 0.90 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 4368 0 0 0 11986 12 0 0 25 0 1 0 773664903 30281728 4292 4294967295 134512640 134714508 3221224576 3221222804 1077414410 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 7393 4292 1111 63 0 7330 0
vsize: 29572
[startup+130.006 s]
Raw data (loadavg): 0.95 0.90 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 4961 0 0 0 12986 13 0 0 25 0 1 0 773664903 32882688 4885 4294967295 134512640 134714508 3221224576 3221222804 1077414376 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8028 4885 1111 63 0 7965 0
vsize: 32112
[startup+140.011 s]
Raw data (loadavg): 0.96 0.90 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 5604 0 0 0 13984 15 0 0 25 0 1 0 773664903 35438592 5528 4294967295 134512640 134714508 3221224576 3221222804 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 8652 5528 1111 63 0 8589 0
vsize: 34608
[startup+150.017 s]
Raw data (loadavg): 0.97 0.91 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 6304 0 0 0 14983 17 0 0 25 0 1 0 773664903 38297600 6228 4294967295 134512640 134714508 3221224576 3221222804 1077414388 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 9350 6228 1111 63 0 9287 0
vsize: 37400
[startup+160.017 s]
Raw data (loadavg): 0.97 0.91 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 7056 0 0 0 15982 18 0 0 25 0 1 0 773664903 41308160 6980 4294967295 134512640 134714508 3221224576 3221222804 1077414338 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10085 6980 1111 63 0 10022 0
vsize: 40340
[startup+170.017 s]
Raw data (loadavg): 0.97 0.91 0.92 2/54 28154
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 7890 0 0 0 16980 20 0 0 25 0 1 0 773664903 44740608 7814 4294967295 134512640 134714508 3221224576 3221222804 1077414413 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 10923 7814 1111 63 0 10860 0
vsize: 43692
[startup+180.025 s]
Raw data (loadavg): 0.98 0.91 0.92 2/54 28156
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 8835 0 0 0 17978 23 0 0 25 0 1 0 773664903 48750592 8759 4294967295 134512640 134714508 3221224576 3221222804 1077414407 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 11902 8759 1111 63 0 11839 0
vsize: 47608
[startup+190.033 s]
Raw data (loadavg): 0.98 0.92 0.92 2/54 28156
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 9882 0 0 0 18977 25 0 0 25 0 1 0 773664903 53059584 9806 4294967295 134512640 134714508 3221224576 3221223232 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 12954 9806 1111 63 0 12891 0
vsize: 51816
[startup+200.033 s]
Raw data (loadavg): 0.98 0.92 0.92 2/54 28156
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 11102 0 0 0 19974 27 0 0 25 0 1 0 773664903 58028032 11026 4294967295 134512640 134714508 3221224576 3221223232 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 14167 11026 1111 63 0 14104 0
vsize: 56668
[startup+210.043 s]
Raw data (loadavg): 0.98 0.92 0.92 2/54 28156
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 12620 0 0 0 20973 30 0 0 25 0 1 0 773664903 64196608 12544 4294967295 134512640 134714508 3221224576 3221223232 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 15673 12544 1111 63 0 15610 0
vsize: 62692
[startup+211.477 s]
Raw data (loadavg): 0.98 0.92 0.92 1/53 28156
Raw data (stat): 28154 (bsolo_lpr_cuts) R 28153 25830 25829 0 -1 0 12620 0 0 0 20973 30 0 0 25 0 1 0 773664903 64196608 12544 4294967295 134512640 134714508 3221224576 3221223232 134527946 0 0 7 0 0 0 0 17 1 0 0
Raw data (statm): 15673 12544 1111 63 0 15610 0
vsize: 0

Child status: 0
Real time (s): 211.477
CPU time (s): 211.441
CPU user time (s): 211.108
CPU system time (s): 0.332949
CPU usage (%): 99.9829
Max. virtual memory (Kb): 62692
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####