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-woodw.opb
MD5SUM5d2b367438a64c72c01ca61f03388807
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 120
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 4294967292
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 10737418240000
Number of bits of the biggest number in a constraint 44
Biggest sum of numbers in a constraint 556588032595749
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 benchmark2.36964
Number of variables252150
Total number of constraints1098
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 constraints1098
Minimum length of a constraint30
Maximum length of a constraint43590

Trace number 42376 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 06:13:27 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25593 boxname=wulflinc3 idbench=893 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5d2b367438a64c72c01ca61f03388807  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-woodw.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-woodw.opb
IDLAUNCH: 25593
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        672224 kB
Buffers:         34484 kB
Cached:         305376 kB
SwapCached:        820 kB
Active:          58972 kB
Inactive:       283076 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        671972 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14720 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:15:22 (client local time) WITH STATUS 1 IN 114.128 SECONDS
stats: 25593 7 114.128 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 0.92 0.90 2/54 18095
Raw data (stat): 18095 (runsolver) R 18094 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968505326 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+10.0007 s]
Raw data (loadavg): 0.88 0.92 0.90 2/54 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 26330 0 0 0 951 48 0 0 25 0 1 0 968505326 87302144 15235 4294967295 134512640 135730672 3221224576 3218294936 134787729 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21314 15235 301 301 0 21013 0
vsize: 85256
[startup+20.002 s]
Raw data (loadavg): 0.89 0.92 0.90 2/54 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 55166 0 0 0 1894 106 0 0 25 0 1 0 968505326 173801472 32850 4294967295 134512640 135730672 3221224576 3218305948 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42432 32850 301 301 0 42131 0
vsize: 169728
[startup+30.0024 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 96411 0 0 0 2812 187 0 0 25 0 1 0 968505326 301350912 51906 4294967295 134512640 135730672 3221224576 3218370444 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73572 51906 301 301 0 73271 0
vsize: 294288
[startup+40.0023 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 111565 0 0 0 3783 216 0 0 25 0 1 0 968505326 344637440 66831 4294967295 134512640 135730672 3221224576 3218364880 134607989 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 84140 66831 301 301 0 83839 0
vsize: 336560
[startup+50.0036 s]
Raw data (loadavg): 0.93 0.93 0.90 2/54 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 131776 0 0 0 4742 258 0 0 25 0 1 0 968505326 373833728 86809 4294967295 134512640 135730672 3221224576 3218318640 134551366 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 91268 86809 301 301 0 90967 0
vsize: 365072
[startup+60.0031 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 193149 0 0 0 5619 380 0 0 25 0 1 0 968505326 598790144 104052 4294967295 134512640 135730672 3221224576 3218357024 134546470 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146189 104052 301 301 0 145888 0
vsize: 584756
[startup+70.004 s]
Raw data (loadavg): 0.95 0.93 0.91 2/54 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 204675 0 0 0 6593 407 0 0 25 0 1 0 968505326 632344576 115376 4294967295 134512640 135730672 3221224576 3218280088 135284037 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154381 115376 301 301 0 154080 0
vsize: 617524
[startup+80.0053 s]
Raw data (loadavg): 0.96 0.93 0.91 2/54 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 221597 0 0 0 7558 442 0 0 25 0 1 0 968505326 648429568 132069 4294967295 134512640 135730672 3221224576 3218413232 134611296 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158308 132069 301 301 0 158007 0
vsize: 633232
[startup+90.0048 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 241920 0 0 0 8519 482 0 0 25 0 1 0 968505326 678166528 152154 4294967295 134512640 135730672 3221224576 3218520816 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 165568 152154 301 301 0 165267 0
vsize: 662272
[startup+100.005 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 257893 0 0 0 9484 514 0 0 25 0 1 0 968505326 751611904 167942 4294967295 134512640 135730672 3221224576 3218492124 134637879 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 183499 167942 301 301 0 183198 0
vsize: 733996
[startup+110.005 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 265194 0 0 0 10452 544 0 0 25 0 1 0 968505326 402210816 97779 4294967295 134512640 135730672 3221224576 3221222764 135281124 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98196 97779 301 301 0 97895 0
vsize: 392784
[startup+114.164 s]
Raw data (loadavg): 0.97 0.94 0.91 1/53 18095
Raw data (stat): 18095 (pb2sat-v2) R 18094 20224 20223 0 -1 0 265194 0 0 0 10452 544 0 0 25 0 1 0 968505326 402210816 97779 4294967295 134512640 135730672 3221224576 3221222764 135281124 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98196 97779 301 301 0 97895 0
vsize: 0

Child status: 1
Real time (s): 114.164
CPU time (s): 114.128
CPU user time (s): 108.478
CPU system time (s): 5.65014
CPU usage (%): 99.968
Max. virtual memory (Kb): 733996
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####