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-kb2.opb
MD5SUMcdf1de396fe048a09eaf2f98435758ef
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 0
Optimality of the best value was proved NO
Number of terms in the objective function 48
Biggest coefficient in the objective function 4325376
Number of bits for the biggest coefficient in the objective function 23
Sum of the numbers in the objective function 12058535
Number of bits of the sum of numbers in the objective function 24
Biggest number in a constraint 5715913739337728
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 75299293548900036
Number of bits of the biggest sum of numbers57
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1217.12
Number of variables1096
Total number of constraints52
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 constraints52
Minimum length of a constraint13
Maximum length of a constraint300

Trace number 42324 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 05:39:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25543 boxname=wulflinc1 idbench=843 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  cdf1de396fe048a09eaf2f98435758ef  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-kb2.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-kb2.opb
IDLAUNCH: 25543
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        709980 kB
Buffers:         34268 kB
Cached:         266324 kB
SwapCached:       1192 kB
Active:          55972 kB
Inactive:       246940 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        709700 kB
SwapTotal:     2097136 kB
SwapFree:      2094880 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            15832 kB
Committed_AS:    92684 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:40:49 (client local time) WITH STATUS 1 IN 108.163 SECONDS
stats: 25543 7 108.163 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): 0.90 0.94 0.90 2/55 14309
Raw data (stat): 14309 (runsolver) R 14308 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 911450640 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+10.0006 s]
Raw data (loadavg): 0.91 0.94 0.90 2/55 14309
Raw data (stat): 14309 (pb2sat-v2) R 14308 8378 8377 0 -1 0 28712 0 0 0 942 57 0 0 25 0 1 0 911450640 88707072 17589 4294967295 134512640 135730672 3221224576 3221091964 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21657 17589 301 301 0 21356 0
vsize: 86628
[startup+20.0014 s]
Raw data (loadavg): 0.93 0.94 0.91 2/55 14309
Raw data (stat): 14309 (pb2sat-v2) R 14308 8378 8377 0 -1 0 56505 0 0 0 1884 115 0 0 25 0 1 0 911450640 174792704 34185 4294967295 134512640 135730672 3221224576 3221090316 135282781 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42674 34185 301 301 0 42373 0
vsize: 170696
[startup+30.0022 s]
Raw data (loadavg): 0.94 0.94 0.91 2/55 14309
Raw data (stat): 14309 (pb2sat-v2) R 14308 8378 8377 0 -1 0 82358 0 0 0 2838 162 0 0 25 0 1 0 911450640 237084672 49575 4294967295 134512640 135730672 3221224576 3221093808 134610051 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 57882 49575 301 301 0 57581 0
vsize: 231528
[startup+40.003 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 14309
Raw data (stat): 14309 (pb2sat-v2) R 14308 8378 8377 0 -1 0 111221 0 0 0 3780 220 0 0 25 0 1 0 911450640 345337856 65933 4294967295 134512640 135730672 3221224576 3221090112 134610033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84311 65933 301 301 0 84010 0
vsize: 337244
[startup+50.0039 s]
Raw data (loadavg): 0.95 0.94 0.91 2/55 14309
Raw data (stat): 14309 (pb2sat-v2) R 14308 8378 8377 0 -1 0 151121 0 0 0 4707 293 0 0 25 0 1 0 911450640 471072768 86651 4294967295 134512640 135730672 3221224576 3221089636 135281249 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 115008 86651 301 301 0 114707 0
vsize: 460032
[startup+60.004 s]
Raw data (loadavg): 0.96 0.94 0.91 2/55 14309
Raw data (stat): 14309 (pb2sat-v2) R 14308 8378 8377 0 -1 0 163559 0 0 0 5682 318 0 0 25 0 1 0 911450640 476864512 97174 4294967295 134512640 135730672 3221224576 3221090540 135284036 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 116422 97174 301 301 0 116121 0
vsize: 465688
[startup+70.0044 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 14309
Raw data (stat): 14309 (pb2sat-v2) R 14308 8378 8377 0 -1 0 201473 0 0 0 6607 393 0 0 25 0 1 0 911450640 589963264 110308 4294967295 134512640 135730672 3221224576 3221092364 135291183 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144034 110308 301 301 0 143733 0
vsize: 576136
[startup+80.0052 s]
Raw data (loadavg): 0.97 0.95 0.91 2/55 14309
Raw data (stat): 14309 (pb2sat-v2) R 14308 8378 8377 0 -1 0 217635 0 0 0 7578 423 0 0 25 0 1 0 911450640 648355840 126270 4294967295 134512640 135730672 3221224576 3221090908 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158290 126270 301 301 0 157989 0
vsize: 633160
[startup+90.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14309
Raw data (stat): 14309 (pb2sat-v2) R 14308 8378 8377 0 -1 0 236421 0 0 0 8543 458 0 0 25 0 1 0 911450640 678440960 144763 4294967295 134512640 135730672 3221224576 3221091872 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165635 144763 301 301 0 165334 0
vsize: 662540
[startup+100.006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/55 14309
Raw data (stat): 14309 (pb2sat-v2) R 14308 8378 8377 0 -1 0 250782 0 0 0 9515 486 0 0 25 0 1 0 911450640 701890560 158839 4294967295 134512640 135730672 3221224576 3221222644 135282196 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171360 158839 301 301 0 171059 0
vsize: 685440
[startup+108.147 s]
Raw data (loadavg): 0.98 0.95 0.91 1/54 14309
Raw data (stat): 14309 (pb2sat-v2) R 14308 8378 8377 0 -1 0 250782 0 0 0 9515 486 0 0 25 0 1 0 911450640 701890560 158839 4294967295 134512640 135730672 3221224576 3221222644 135282196 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171360 158839 301 301 0 171059 0
vsize: 0

Child status: 1
Real time (s): 108.147
CPU time (s): 108.163
CPU user time (s): 102.966
CPU system time (s): 5.19621
CPU usage (%): 100.014
Max. virtual memory (Kb): 685440
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####