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-adlittle.opb
MD5SUM1bb3cde4ae28db77cb8e051d278e83a5
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 2460
Biggest coefficient in the objective function 88852135936000
Number of bits for the biggest coefficient in the objective function 47
Sum of the numbers in the objective function 3689448844530141
Number of bits of the sum of numbers in the objective function 52
Biggest number in a constraint 359703511040000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 6054438712178314
Number of bits of the biggest sum of numbers53
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.030994
Number of variables2910
Total number of constraints56
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 constraints56
Minimum length of a constraint30
Maximum length of a constraint810

Trace number 42284 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 05:09:12 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25504 boxname=wulflinc2 idbench=804 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1bb3cde4ae28db77cb8e051d278e83a5  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-adlittle.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-adlittle.opb
IDLAUNCH: 25504
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        827736 kB
Buffers:         34480 kB
Cached:         146984 kB
SwapCached:       4448 kB
Active:          61636 kB
Inactive:       124892 kB
HighTotal:      131008 kB
HighFree:          672 kB
LowTotal:       903652 kB
LowFree:        827064 kB
SwapTotal:     2097136 kB
SwapFree:      2091696 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            14760 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:11:06 (client local time) WITH STATUS 1 IN 113.717 SECONDS
stats: 25504 7 113.717 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
Raw data (loadavg): 0.91 0.94 0.90 2/54 4148
Raw data (stat): 4148 (runsolver) R 4147 31399 31398 0 -1 64 5 0 0 0 0 0 0 0 19 0 1 0 968132829 884736 93 4294967295 134512640 135332820 3221224464 3221219480 134578929 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 93 205 205 0 11 0
vsize: 864
Current StackSize limit: 67108864 bytes
[startup+10.0006 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 27957 0 0 0 946 52 0 0 25 0 1 0 968132829 87375872 16836 4294967295 134512640 135730672 3221224576 3221086844 135104780 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21332 16836 301 301 0 21031 0
vsize: 85328
[startup+20.0016 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 55549 0 0 0 1894 105 0 0 25 0 1 0 968132829 172122112 33224 4294967295 134512640 135730672 3221224576 3221092752 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42022 33225 301 301 0 41721 0
vsize: 168088
[startup+30.001 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 96028 0 0 0 2818 181 0 0 25 0 1 0 968132829 298323968 51519 4294967295 134512640 135730672 3221224576 3221097352 135284248 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72833 51519 301 301 0 72532 0
vsize: 291332
[startup+40.0007 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 110355 0 0 0 3788 211 0 0 25 0 1 0 968132829 340799488 65628 4294967295 134512640 135730672 3221224576 3221105240 135284325 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83203 65629 301 301 0 82902 0
vsize: 332812
[startup+50.0007 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 130676 0 0 0 4752 247 0 0 25 0 1 0 968132829 370003968 85712 4294967295 134512640 135730672 3221224576 3221116928 134770757 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 90333 85712 301 301 0 90032 0
vsize: 361332
[startup+60.0011 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 191647 0 0 0 5629 370 0 0 25 0 1 0 968132829 594964480 102558 4294967295 134512640 135730672 3221224576 3221114232 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145255 102558 301 301 0 144954 0
vsize: 581020
[startup+70.0018 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 202741 0 0 0 6607 392 0 0 25 0 1 0 968132829 628518912 113453 4294967295 134512640 135730672 3221224576 3221120204 134606828 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153447 113454 301 301 0 153146 0
vsize: 613788
[startup+80.0018 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 219589 0 0 0 7576 424 0 0 25 0 1 0 968132829 643932160 130067 4294967295 134512640 135730672 3221224576 3221121664 134775077 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157210 130067 301 301 0 156909 0
vsize: 628840
[startup+90.0022 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 239796 0 0 0 8538 462 0 0 25 0 1 0 968132829 673001472 150039 4294967295 134512640 135730672 3221224576 3221129060 135282196 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 164307 150040 301 301 0 164006 0
vsize: 657228
[startup+100.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 256083 0 0 0 9507 493 0 0 25 0 1 0 968132829 746717184 166136 4294967295 134512640 135730672 3221224576 3221131872 134607963 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 182304 166136 301 301 0 182003 0
vsize: 729216
[startup+110.003 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 263684 0 0 0 10479 521 0 0 25 0 1 0 968132829 397860864 96701 4294967295 134512640 135730672 3221224576 3221222764 135281206 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97134 96701 301 301 0 96833 0
vsize: 388536
[startup+113.71 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 4148
Raw data (stat): 4148 (pb2sat-v2) R 4147 31399 31398 0 -1 0 263684 0 0 0 10479 521 0 0 25 0 1 0 968132829 397860864 96701 4294967295 134512640 135730672 3221224576 3221222764 135281206 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97134 96701 301 301 0 96833 0
vsize: 0

Child status: 1
Real time (s): 113.71
CPU time (s): 113.717
CPU user time (s): 108.292
CPU system time (s): 5.42517
CPU usage (%): 100.006
Max. virtual memory (Kb): 729216
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####