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-degen3.opb
MD5SUM7312c1a4c94073cc51821da54f781db8
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 47190
Biggest coefficient in the objective function 1001264250880
Number of bits for the biggest coefficient in the objective function 40
Sum of the numbers in the objective function 339379725479256
Number of bits of the sum of numbers in the objective function 49
Biggest number in a constraint 1001264250880
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 339379725479256
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.474927
Number of variables54540
Total number of constraints1503
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 constraints1503
Minimum length of a constraint60
Maximum length of a constraint6090

Trace number 35046 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-05-28 12:04:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24352 boxname=wulflinc4 idbench=824 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7312c1a4c94073cc51821da54f781db8  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-degen3.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-degen3.opb
IDLAUNCH: 24352
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
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:        719908 kB
Buffers:         34196 kB
Cached:         259060 kB
SwapCached:        504 kB
Active:          37856 kB
Inactive:       257788 kB
HighTotal:      131008 kB
HighFree:         7168 kB
LowTotal:       903652 kB
LowFree:        712740 kB
SwapTotal:     2097136 kB
SwapFree:      2096000 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5796 kB
Slab:            13320 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:07:07 (client local time) WITH STATUS 1 IN 159.44 SECONDS
stats: 24352 7 159.44 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): 0.85 0.94 0.90 1/54 29821
Raw data (stat): 29821 (runsolver) R 29820 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806430164 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0061 s]
Raw data (loadavg): 0.87 0.94 0.90 2/54 29821
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 2198 0 0 0 993 5 0 0 25 0 1 0 806430164 8089600 1523 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 1975 1523 300 300 0 1675 0
vsize: 7900
[startup+20.0108 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 29821
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 2698 0 0 0 1992 7 0 0 25 0 1 0 806430164 9306112 2015 4294967295 134512640 135726644 3221224576 3221220976 135279120 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 2272 2015 300 300 0 1972 0
vsize: 9088
[startup+30.0115 s]
Raw data (loadavg): 0.91 0.94 0.90 2/54 29821
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 3854 0 0 0 2989 10 0 0 25 0 1 0 806430164 13410304 2459 4294967295 134512640 135726644 3221224576 3221221888 134565187 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3274 2459 300 300 0 2974 0
vsize: 13096
[startup+40.0117 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 29821
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 4086 0 0 0 3987 12 0 0 25 0 1 0 806430164 13950976 2686 4294967295 134512640 135726644 3221224576 3221221664 134556171 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3406 2686 300 300 0 3106 0
vsize: 13624
[startup+50.0122 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 29821
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 4347 0 0 0 4986 13 0 0 25 0 1 0 806430164 14626816 2943 4294967295 134512640 135726644 3221224576 3221221664 134556173 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 3571 2943 300 300 0 3271 0
vsize: 14284
[startup+60.0121 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 29821
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 28431 0 0 0 5931 68 0 0 25 0 1 0 806430164 91803648 20367 4294967295 134512640 135726644 3221224576 3202829216 135278611 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 22413 20367 300 300 0 22113 0
vsize: 89652
[startup+70.0124 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 29821
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 59446 0 0 0 6865 134 0 0 25 0 1 0 806430164 182632448 37090 4294967295 134512640 135726644 3221224576 3203112152 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 44588 37092 300 300 0 44288 0
vsize: 178352
[startup+80.0128 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 29821
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 85980 0 0 0 7816 184 0 0 25 0 1 0 806430164 268382208 53730 4294967295 134512640 135726644 3221224576 3202382912 134554627 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 65523 53730 300 300 0 65223 0
vsize: 262092
[startup+90.0127 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 29821
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 113950 0 0 0 8751 249 0 0 25 0 1 0 806430164 369164288 69181 4294967295 134512640 135726644 3221224576 3204155364 135277617 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 90128 69181 300 300 0 89828 0
vsize: 360512
[startup+100.014 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 29821
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 151534 0 0 0 9683 316 0 0 25 0 1 0 806430164 569356288 105807 4294967295 134512640 135726644 3221224576 3203418160 134771796 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 139003 105810 300 300 0 138703 0
vsize: 556012
[startup+110.014 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 29823
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 168580 0 0 0 10645 355 0 0 25 0 1 0 806430164 511164416 103978 4294967295 134512640 135726644 3221224576 3203353264 134767123 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 124796 103978 300 300 0 124496 0
vsize: 499184
[startup+120.015 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 29823
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 205700 0 0 0 11563 437 0 0 25 0 1 0 806430164 616828928 116313 4294967295 134512640 135726644 3221224576 3203392632 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 150593 116313 300 300 0 150293 0
vsize: 602372
[startup+130.016 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 29823
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 223264 0 0 0 12526 475 0 0 25 0 1 0 806430164 677146624 133676 4294967295 134512640 135726644 3221224576 3203102040 135297949 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165319 133676 300 300 0 165019 0
vsize: 661276
[startup+140.016 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 29823
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 243333 0 0 0 13481 519 0 0 25 0 1 0 806430164 707018752 153516 4294967295 134512640 135726644 3221224576 3202645752 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 172612 153516 300 300 0 172312 0
vsize: 690448
[startup+150.017 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 29823
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 262367 0 0 0 14441 560 0 0 25 0 1 0 806430164 735641600 172334 4294967295 134512640 135726644 3221224576 3203354204 135102779 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 179600 172334 300 300 0 179300 0
vsize: 718400
[startup+159.443 s]
Raw data (loadavg): 0.99 0.95 0.91 1/53 29823
Raw data (stat): 29821 (pb2sat) R 29820 21152 21151 0 -1 0 262367 0 0 0 14441 560 0 0 25 0 1 0 806430164 735641600 172334 4294967295 134512640 135726644 3221224576 3203354204 135102779 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 179600 172334 300 300 0 179300 0
vsize: 0

Child status: 1
Real time (s): 159.442
CPU time (s): 159.44
CPU user time (s): 153.481
CPU system time (s): 5.95909
CPU usage (%): 99.9983
Max. virtual memory (Kb): 718400
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####