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-pilot.ja.opb
MD5SUM14008dcc965a2d6f0a6e83434c8b6300
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 230
Biggest coefficient in the objective function 694596606623744
Number of bits for the biggest coefficient in the objective function 50
Sum of the numbers in the objective function 4435721544887391
Number of bits of the sum of numbers in the objective function 52
Biggest number in a constraint 3141307404910592000000
Number of bits of the biggest number in a constraint 72
Biggest sum of numbers in a constraint 12713246235773393436672
Number of bits of the biggest sum of numbers74
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.65875
Number of variables45952
Total number of constraints1259
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 constraints1259
Minimum length of a constraint10
Maximum length of a constraint4005

Trace number 42333 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 05:44:15 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25553 boxname=wulflinc3 idbench=853 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  14008dcc965a2d6f0a6e83434c8b6300  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-pilot.ja.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-pilot.ja.opb
IDLAUNCH: 25553
/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:        754776 kB
Buffers:         34288 kB
Cached:         223360 kB
SwapCached:        820 kB
Active:          36184 kB
Inactive:       223580 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        754524 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14380 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:45:57 (client local time) WITH STATUS 1 IN 100.654 SECONDS
stats: 25553 7 100.654 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): 0.92 0.95 0.92 1/54 16922
Raw data (stat): 16922 (runsolver) R 16921 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968330212 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+10.0004 s]
Raw data (loadavg): 0.93 0.95 0.92 2/54 16922
Raw data (stat): 16922 (pb2sat-v2) R 16921 20224 20223 0 -1 0 28704 0 0 0 943 56 0 0 25 0 1 0 968330212 89530368 17599 4294967295 134512640 135730672 3221224576 3221083748 134813698 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21858 17599 301 301 0 21557 0
vsize: 87432
[startup+20.0008 s]
Raw data (loadavg): 0.94 0.95 0.92 2/54 16922
Raw data (stat): 16922 (pb2sat-v2) R 16921 20224 20223 0 -1 0 57577 0 0 0 1888 112 0 0 25 0 1 0 968330212 177266688 34983 4294967295 134512640 135730672 3221224576 3221081664 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43278 34983 301 301 0 42977 0
vsize: 173112
[startup+30.0007 s]
Raw data (loadavg): 0.95 0.95 0.92 2/54 16922
Raw data (stat): 16922 (pb2sat-v2) R 16921 20224 20223 0 -1 0 89924 0 0 0 2829 171 0 0 25 0 1 0 968330212 339689472 56747 4294967295 134512640 135730672 3221224576 3221082720 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 82932 56747 301 301 0 82631 0
vsize: 331728
[startup+40.002 s]
Raw data (loadavg): 0.96 0.95 0.92 2/54 16922
Raw data (stat): 16922 (pb2sat-v2) R 16921 20224 20223 0 -1 0 114414 0 0 0 3782 218 0 0 25 0 1 0 968330212 351121408 68706 4294967295 134512640 135730672 3221224576 3221080360 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85723 68706 301 301 0 85422 0
vsize: 342892
[startup+50.0024 s]
Raw data (loadavg): 0.96 0.95 0.92 2/54 16922
Raw data (stat): 16922 (pb2sat-v2) R 16921 20224 20223 0 -1 0 154155 0 0 0 4708 292 0 0 25 0 1 0 968330212 476614656 87323 4294967295 134512640 135730672 3221224576 3221082896 135109351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116361 87323 301 301 0 116060 0
vsize: 465444
[startup+60.0022 s]
Raw data (loadavg): 0.97 0.95 0.92 2/54 16922
Raw data (stat): 16922 (pb2sat-v2) R 16921 20224 20223 0 -1 0 167103 0 0 0 5683 317 0 0 25 0 1 0 968330212 476614656 100006 4294967295 134512640 135730672 3221224576 3221083520 134546503 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116361 100006 301 301 0 116060 0
vsize: 465444
[startup+70.0028 s]
Raw data (loadavg): 0.97 0.96 0.92 2/54 16922
Raw data (stat): 16922 (pb2sat-v2) R 16921 20224 20223 0 -1 0 208618 0 0 0 6596 404 0 0 25 0 1 0 968330212 601743360 116721 4294967295 134512640 135730672 3221224576 3221081152 134786302 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 146910 116721 301 301 0 146609 0
vsize: 587640
[startup+80.0029 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 16922
Raw data (stat): 16922 (pb2sat-v2) R 16921 20224 20223 0 -1 0 225819 0 0 0 7564 436 0 0 25 0 1 0 968330212 661250048 133700 4294967295 134512640 135730672 3221224576 3221080844 134546300 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161438 133700 301 301 0 161137 0
vsize: 645752
[startup+90.0038 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 16922
Raw data (stat): 16922 (pb2sat-v2) R 16921 20224 20223 0 -1 0 245833 0 0 0 8526 474 0 0 25 0 1 0 968330212 693456896 153457 4294967295 134512640 135730672 3221224576 3221083484 134608001 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 169301 153457 301 301 0 169000 0
vsize: 677204
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.92 2/54 16922
Raw data (stat): 16922 (pb2sat-v2) R 16921 20224 20223 0 -1 0 247535 0 0 0 9511 489 0 0 25 0 1 0 968330212 376987648 91594 4294967295 134512640 135730672 3221224576 3221222936 135284037 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 92038 91594 301 301 0 91737 0
vsize: 368152
[startup+100.648 s]
Raw data (loadavg): 0.98 0.96 0.92 1/53 16922
Raw data (stat): 16922 (pb2sat-v2) R 16921 20224 20223 0 -1 0 247535 0 0 0 9511 489 0 0 25 0 1 0 968330212 376987648 91594 4294967295 134512640 135730672 3221224576 3221222936 135284037 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 92038 91594 301 301 0 91737 0
vsize: 0

Child status: 1
Real time (s): 100.648
CPU time (s): 100.654
CPU user time (s): 95.5635
CPU system time (s): 5.09023
CPU usage (%): 100.006
Max. virtual memory (Kb): 677204
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####