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-stocfor1.opb
MD5SUM7d2af3956088e44d3dd8bd225cfe1230
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 810
Biggest coefficient in the objective function 159153234378752000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 3935910692489746509
Number of bits of the sum of numbers in the objective function 62
Biggest number in a constraint 159153234378752000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 3935910692489746509
Number of bits of the biggest sum of numbers62
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.226965
Number of variables3330
Total number of constraints117
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 constraints117
Minimum length of a constraint30
Maximum length of a constraint240

Trace number 42370 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 06:10:28 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25588 boxname=wulflinc6 idbench=888 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  7d2af3956088e44d3dd8bd225cfe1230  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-stocfor1.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-stocfor1.opb
IDLAUNCH: 25588
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        699420 kB
Buffers:         34068 kB
Cached:         278520 kB
SwapCached:       1028 kB
Active:          27684 kB
Inactive:       287028 kB
HighTotal:      131008 kB
HighFree:         3808 kB
LowTotal:       903652 kB
LowFree:        695612 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5088 kB
Slab:            14804 kB
Committed_AS:    63844 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:12:17 (client local time) WITH STATUS 1 IN 108.721 SECONDS
stats: 25588 7 108.721 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 0.95 0.91 2/54 15003
Raw data (stat): 15003 (runsolver) R 15002 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968495609 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+10.0007 s]
Raw data (loadavg): 0.91 0.95 0.91 2/54 15003
Raw data (stat): 15003 (pb2sat-v2) R 15002 25568 25567 0 -1 0 29249 0 0 0 937 61 0 0 25 0 1 0 968495609 88813568 18108 4294967295 134512640 135730672 3221224576 3221123768 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21683 18108 301 301 0 21382 0
vsize: 86732
[startup+20.0011 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 15003
Raw data (stat): 15003 (pb2sat-v2) R 15002 25568 25567 0 -1 0 57510 0 0 0 1881 118 0 0 25 0 1 0 968495609 174968832 35404 4294967295 134512640 135730672 3221224576 3221128032 134770870 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42717 35404 301 301 0 42416 0
vsize: 170868
[startup+30.0019 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 15003
Raw data (stat): 15003 (pb2sat-v2) R 15002 25568 25567 0 -1 0 96099 0 0 0 2802 197 0 0 25 0 1 0 968495609 293183488 52310 4294967295 134512640 135730672 3221224576 3221126640 134546503 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 71578 52310 301 301 0 71277 0
vsize: 286312
[startup+40.0021 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 15003
Raw data (stat): 15003 (pb2sat-v2) R 15002 25568 25567 0 -1 0 113246 0 0 0 3769 231 0 0 25 0 1 0 968495609 346202112 69223 4294967295 134512640 135730672 3221224576 3221124872 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84522 69224 301 301 0 84221 0
vsize: 338088
[startup+50.0026 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 15003
Raw data (stat): 15003 (pb2sat-v2) R 15002 25568 25567 0 -1 0 156438 0 0 0 4694 306 0 0 25 0 1 0 968495609 553725952 111241 4294967295 134512640 135730672 3221224576 3221129056 134775362 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 135187 111242 301 301 0 134886 0
vsize: 540748
[startup+60.0024 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 15003
Raw data (stat): 15003 (pb2sat-v2) R 15002 25568 25567 0 -1 0 190505 0 0 0 5619 381 0 0 25 0 1 0 968495609 584433664 103127 4294967295 134512640 135730672 3221224576 3221127068 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 142684 103127 301 301 0 142383 0
vsize: 570736
[startup+70.0025 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 15003
Raw data (stat): 15003 (pb2sat-v2) R 15002 25568 25567 0 -1 0 203043 0 0 0 6595 406 0 0 25 0 1 0 968495609 622854144 115449 4294967295 134512640 135730672 3221224576 3221129852 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 152064 115449 301 301 0 151763 0
vsize: 608256
[startup+80.003 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 15003
Raw data (stat): 15003 (pb2sat-v2) R 15002 25568 25567 0 -1 0 222921 0 0 0 7555 446 0 0 25 0 1 0 968495609 652320768 135089 4294967295 134512640 135730672 3221224576 3221132324 134550127 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159258 135090 301 301 0 158957 0
vsize: 637032
[startup+90.0028 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15003
Raw data (stat): 15003 (pb2sat-v2) R 15002 25568 25567 0 -1 0 242843 0 0 0 8518 484 0 0 25 0 1 0 968495609 681787392 154770 4294967295 134512640 135730672 3221224576 3221126088 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 166452 154770 301 301 0 166151 0
vsize: 665808
[startup+100.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 15003
Raw data (stat): 15003 (pb2sat-v2) R 15002 25568 25567 0 -1 0 256599 0 0 0 9493 508 0 0 25 0 1 0 968495609 755003392 168360 4294967295 134512640 135730672 3221224576 3221222740 134540222 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184327 168360 301 301 0 184026 0
vsize: 737308
[startup+108.702 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 15003
Raw data (stat): 15003 (pb2sat-v2) R 15002 25568 25567 0 -1 0 256599 0 0 0 9493 508 0 0 25 0 1 0 968495609 755003392 168360 4294967295 134512640 135730672 3221224576 3221222740 134540222 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 184327 168360 301 301 0 184026 0
vsize: 0

Child status: 1
Real time (s): 108.702
CPU time (s): 108.721
CPU user time (s): 103.288
CPU system time (s): 5.43317
CPU usage (%): 100.018
Max. virtual memory (Kb): 737308
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####