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-standata.opb
MD5SUM6b45570c3ad2b7b75465bdaa58eb934a
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 210
Biggest coefficient in the objective function 53687091200
Number of bits for the biggest coefficient in the objective function 36
Sum of the numbers in the objective function 326417514192
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 77387257610240
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 2427818341201528
Number of bits of the biggest sum of numbers52
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.78588
Number of variables30004
Total number of constraints462
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 constraints462
Minimum length of a constraint11
Maximum length of a constraint22350

Trace number 42367 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-06-16 06:09:10 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25586 boxname=wulflinc3 idbench=886 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6b45570c3ad2b7b75465bdaa58eb934a  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-standata.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-standata.opb
IDLAUNCH: 25586
/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:        730568 kB
Buffers:         34452 kB
Cached:         247472 kB
SwapCached:        820 kB
Active:          34264 kB
Inactive:       249812 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        730316 kB
SwapTotal:     2097136 kB
SwapFree:      2095340 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            14408 kB
Committed_AS:    71900 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:10:50 (client local time) WITH STATUS 1 IN 100.242 SECONDS
stats: 25586 7 100.242 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): 0.91 0.95 0.90 2/54 17909
Raw data (stat): 17909 (runsolver) R 17908 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968479545 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+10.0012 s]
Raw data (loadavg): 0.93 0.95 0.90 2/54 17909
Raw data (stat): 17909 (pb2sat-v2) R 17908 20224 20223 0 -1 0 27436 0 0 0 943 55 0 0 25 0 1 0 968479545 78139392 16510 4294967295 134512640 135730672 3221224576 3221127468 135301622 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19077 16510 301 301 0 18776 0
vsize: 76308
[startup+20.0016 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 17909
Raw data (stat): 17909 (pb2sat-v2) R 17908 20224 20223 0 -1 0 55594 0 0 0 1881 117 0 0 25 0 1 0 968479545 155041792 33417 4294967295 134512640 135730672 3221224576 3221064524 134606794 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37852 33417 301 301 0 37551 0
vsize: 151408
[startup+30.0023 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 17909
Raw data (stat): 17909 (pb2sat-v2) R 17908 20224 20223 0 -1 0 93718 0 0 0 2798 198 0 0 25 0 1 0 968479545 298835968 49333 4294967295 134512640 135730672 3221224576 3221078848 134770759 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72958 49333 301 301 0 72657 0
vsize: 291832
[startup+40.0025 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 17909
Raw data (stat): 17909 (pb2sat-v2) R 17908 20224 20223 0 -1 0 111346 0 0 0 3753 243 0 0 25 0 1 0 968479545 308027392 66677 4294967295 134512640 135730672 3221224576 3221127272 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 75202 66677 301 301 0 74901 0
vsize: 300808
[startup+50.0031 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 17909
Raw data (stat): 17909 (pb2sat-v2) R 17908 20224 20223 0 -1 0 153460 0 0 0 4672 325 0 0 25 0 1 0 968479545 635523072 90208 4294967295 134512640 135730672 3221224576 3220776912 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 155157 90213 301 301 0 154856 0
vsize: 620628
[startup+60.003 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 17909
Raw data (stat): 17909 (pb2sat-v2) R 17908 20224 20223 0 -1 0 185259 0 0 0 5604 394 0 0 25 0 1 0 968479545 568410112 97233 4294967295 134512640 135730672 3221224576 3220777328 135284078 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138772 97233 301 301 0 138471 0
vsize: 555088
[startup+70.0033 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 17909
Raw data (stat): 17909 (pb2sat-v2) R 17908 20224 20223 0 -1 0 203195 0 0 0 6567 431 0 0 25 0 1 0 968479545 589295616 114914 4294967295 134512640 135730672 3221224576 3220776408 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 143871 114914 301 301 0 143570 0
vsize: 575484
[startup+80.0038 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 17909
Raw data (stat): 17909 (pb2sat-v2) R 17908 20224 20223 0 -1 0 223097 0 0 0 7528 469 0 0 25 0 1 0 968479545 619257856 134573 4294967295 134512640 135730672 3221224576 3220780496 134546351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 151186 134573 301 301 0 150885 0
vsize: 604744
[startup+90.0037 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 17909
Raw data (stat): 17909 (pb2sat-v2) R 17908 20224 20223 0 -1 0 238869 0 0 0 8499 499 0 0 25 0 1 0 968479545 694108160 150151 4294967295 134512640 135730672 3221224576 3220778624 134546572 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 169460 150152 301 301 0 169159 0
vsize: 677840
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 17909
Raw data (stat): 17909 (pb2sat-v2) R 17908 20224 20223 0 -1 0 244056 0 0 0 9474 523 0 0 25 0 1 0 968479545 349753344 84842 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85389 84842 301 301 0 85088 0
vsize: 341556
[startup+100.267 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 17909
Raw data (stat): 17909 (pb2sat-v2) R 17908 20224 20223 0 -1 0 244056 0 0 0 9474 523 0 0 25 0 1 0 968479545 349753344 84842 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85389 84842 301 301 0 85088 0
vsize: 0

Child status: 1
Real time (s): 100.267
CPU time (s): 100.242
CPU user time (s): 94.8256
CPU system time (s): 5.41618
CPU usage (%): 99.9749
Max. virtual memory (Kb): 677840
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####