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-lotfi.opb
MD5SUMd0cc302a544eb359eec19c9f7d39cc8a
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 240
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 8589934584
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint 5368709120000000000
Number of bits of the biggest number in a constraint 63
Biggest sum of numbers in a constraint 40952512476384968704
Number of bits of the biggest sum of numbers66
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.158974
Number of variables9240
Total number of constraints153
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 constraints153
Minimum length of a constraint30
Maximum length of a constraint3990

Trace number 42325 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 05:39:28 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25544 boxname=wulflinc5 idbench=844 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d0cc302a544eb359eec19c9f7d39cc8a  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-lotfi.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-lotfi.opb
IDLAUNCH: 25544
/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:        757624 kB
Buffers:         34600 kB
Cached:         219564 kB
SwapCached:        700 kB
Active:          73508 kB
Inactive:       182724 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        757372 kB
SwapTotal:     2097136 kB
SwapFree:      2095508 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15040 kB
Committed_AS:    63712 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:41:13 (client local time) WITH STATUS 1 IN 104.558 SECONDS
stats: 25544 7 104.558 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 0.97 0.91 1/54 9133
Raw data (stat): 9133 (runsolver) R 9132 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968310530 884736 94 4294967295 134512640 135332820 3221224464 3221219644 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+10.0014 s]
Raw data (loadavg): 0.93 0.97 0.91 2/54 9133
Raw data (stat): 9133 (pb2sat-v2) R 9132 7266 7265 0 -1 0 27649 0 0 0 939 60 0 0 25 0 1 0 968310530 84099072 16735 4294967295 134512640 135730672 3221224576 3219404604 135301624 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 20532 16735 301 301 0 20231 0
vsize: 82128
[startup+20.0015 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 9133
Raw data (stat): 9133 (pb2sat-v2) R 9132 7266 7265 0 -1 0 56760 0 0 0 1875 123 0 0 25 0 1 0 968310530 171307008 34879 4294967295 134512640 135730672 3221224576 3219474336 134770840 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 41823 34879 301 301 0 41522 0
vsize: 167292
[startup+30.0012 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 9133
Raw data (stat): 9133 (pb2sat-v2) R 9132 7266 7265 0 -1 0 96767 0 0 0 2796 202 0 0 25 0 1 0 968310530 294334464 53202 4294967295 134512640 135730672 3221224576 3219551004 134607984 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 71859 53203 301 301 0 71558 0
vsize: 287436
[startup+40.0013 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 9133
Raw data (stat): 9133 (pb2sat-v2) R 9132 7266 7265 0 -1 0 113674 0 0 0 3762 237 0 0 25 0 1 0 968310530 343433216 69879 4294967295 134512640 135730672 3221224576 3219531496 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83846 69879 301 301 0 83545 0
vsize: 335384
[startup+50.0021 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 9133
Raw data (stat): 9133 (pb2sat-v2) R 9132 7266 7265 0 -1 0 157604 0 0 0 4679 320 0 0 25 0 1 0 968310530 553357312 112674 4294967295 134512640 135730672 3221224576 3219494384 134775365 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135097 112677 301 301 0 134796 0
vsize: 540388
[startup+60.0025 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 9133
Raw data (stat): 9133 (pb2sat-v2) R 9132 7266 7265 0 -1 0 194689 0 0 0 5597 402 0 0 25 0 1 0 968310530 590151680 106510 4294967295 134512640 135730672 3221224576 3219522216 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 144080 106510 301 301 0 143779 0
vsize: 576320
[startup+70.0036 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 9133
Raw data (stat): 9133 (pb2sat-v2) R 9132 7266 7265 0 -1 0 206751 0 0 0 6573 427 0 0 25 0 1 0 968310530 623706112 118360 4294967295 134512640 135730672 3221224576 3219546808 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152272 118360 301 301 0 151971 0
vsize: 609088
[startup+80.004 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 9133
Raw data (stat): 9133 (pb2sat-v2) R 9132 7266 7265 0 -1 0 227055 0 0 0 7535 465 0 0 25 0 1 0 968310530 651550720 138427 4294967295 134512640 135730672 3221224576 3219442320 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159070 138427 301 301 0 158769 0
vsize: 636280
[startup+90.0037 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 9133
Raw data (stat): 9133 (pb2sat-v2) R 9132 7266 7265 0 -1 0 243956 0 0 0 8501 498 0 0 25 0 1 0 968310530 725807104 155133 4294967295 134512640 135730672 3221224576 3219448768 134786382 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 177199 155133 301 301 0 176898 0
vsize: 708796
[startup+100.004 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 9133
Raw data (stat): 9133 (pb2sat-v2) R 9132 7266 7265 0 -1 0 262578 0 0 0 9459 540 0 0 25 0 1 0 968310530 753348608 173541 4294967295 134512640 135730672 3221224576 3221222840 134540219 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183923 173541 301 301 0 183622 0
vsize: 735692
[startup+104.613 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 9133
Raw data (stat): 9133 (pb2sat-v2) R 9132 7266 7265 0 -1 0 262578 0 0 0 9459 540 0 0 25 0 1 0 968310530 753348608 173541 4294967295 134512640 135730672 3221224576 3221222840 134540219 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183923 173541 301 301 0 183622 0
vsize: 0

Child status: 1
Real time (s): 104.605
CPU time (s): 104.558
CPU user time (s): 98.789
CPU system time (s): 5.76912
CPU usage (%): 99.9555
Max. virtual memory (Kb): 735692
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####