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/plato.asu.edu/pub/fctp/normalized-mps-v2-20-10-gr4x6.opb
MD5SUMd90fce7408f7990dccb3ba4f8fa1c8f6
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 23403520
Optimality of the best value was proved NO
Number of terms in the objective function 744
Biggest coefficient in the objective function 151934468096
Number of bits for the biggest coefficient in the objective function 38
Sum of the numbers in the objective function 3470370333536
Number of bits of the sum of numbers in the objective function 42
Biggest number in a constraint 151934468096
Number of bits of the biggest number in a constraint 38
Biggest sum of numbers in a constraint 3470370333536
Number of bits of the biggest sum of numbers42
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1247.15
Number of variables744
Total number of constraints34
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 constraints34
Minimum length of a constraint31
Maximum length of a constraint180

Trace number 35296 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-05-28 12:42:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24605 boxname=wulflinc3 idbench=1077 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d90fce7408f7990dccb3ba4f8fa1c8f6  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-gr4x6.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-gr4x6.opb
IDLAUNCH: 24605
/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:        854936 kB
Buffers:         33244 kB
Cached:         124956 kB
SwapCached:        240 kB
Active:          50184 kB
Inactive:       110588 kB
HighTotal:      131008 kB
HighFree:        14532 kB
LowTotal:       903652 kB
LowFree:        840404 kB
SwapTotal:     2097136 kB
SwapFree:      2096480 kB
Dirty:              32 kB
Writeback:           0 kB
Mapped:           6324 kB
Slab:            13288 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:44:17 (client local time) WITH STATUS 1 IN 100.961 SECONDS
stats: 24605 7 100.961 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): 0.82 0.92 0.90 2/54 28489
Raw data (stat): 28489 (runsolver) R 28488 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806659972 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): 0.85 0.92 0.90 2/54 28489
Raw data (stat): 28489 (pb2sat) R 28488 20224 20223 0 -1 0 30105 0 0 0 939 60 0 0 25 0 1 0 806659972 89997312 18963 4294967295 134512640 135726644 3221224592 3220952096 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21972 18963 300 300 0 21672 0
vsize: 87888
[startup+20.0014 s]
Raw data (loadavg): 0.87 0.93 0.90 2/54 28489
Raw data (stat): 28489 (pb2sat) R 28488 20224 20223 0 -1 0 59443 0 0 0 1881 118 0 0 25 0 1 0 806659972 177037312 37078 4294967295 134512640 135726644 3221224592 3220937308 134604446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43222 37079 300 300 0 42922 0
vsize: 172888
[startup+30.002 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 28489
Raw data (stat): 28489 (pb2sat) R 28488 20224 20223 0 -1 0 99259 0 0 0 2806 193 0 0 25 0 1 0 806659972 332599296 54707 4294967295 134512640 135726644 3221224592 3220964816 134780450 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81201 54707 300 300 0 80901 0
vsize: 324804
[startup+40.0018 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 28489
Raw data (stat): 28489 (pb2sat) R 28488 20224 20223 0 -1 0 117981 0 0 0 3769 231 0 0 25 0 1 0 806659972 350576640 73175 4294967295 134512640 135726644 3221224592 3220978908 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 85590 73176 300 300 0 85290 0
vsize: 342360
[startup+50.003 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 28489
Raw data (stat): 28489 (pb2sat) R 28488 20224 20223 0 -1 0 162940 0 0 0 4685 314 0 0 25 0 1 0 806659972 562798592 116941 4294967295 134512640 135726644 3221224592 3220973704 135278569 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 137402 116941 300 300 0 137102 0
vsize: 549608
[startup+60.0035 s]
Raw data (loadavg): 0.93 0.93 0.90 2/54 28489
Raw data (stat): 28489 (pb2sat) R 28488 20224 20223 0 -1 0 198237 0 0 0 5610 389 0 0 25 0 1 0 806659972 629903360 109056 4294967295 134512640 135726644 3221224592 3220987216 134780450 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153785 109056 300 300 0 153485 0
vsize: 615140
[startup+70.0036 s]
Raw data (loadavg): 0.94 0.93 0.91 2/54 28489
Raw data (stat): 28489 (pb2sat) R 28488 20224 20223 0 -1 0 212414 0 0 0 6583 417 0 0 25 0 1 0 806659972 631930880 122990 4294967295 134512640 135726644 3221224592 3221003448 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154280 122990 300 300 0 153980 0
vsize: 617120
[startup+80.0045 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 28489
Raw data (stat): 28489 (pb2sat) R 28488 20224 20223 0 -1 0 234589 0 0 0 7539 461 0 0 25 0 1 0 806659972 663560192 144909 4294967295 134512640 135726644 3221224592 3221012872 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 162002 144909 300 300 0 161702 0
vsize: 648008
[startup+90.005 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 28489
Raw data (stat): 28489 (pb2sat) R 28488 20224 20223 0 -1 0 252644 0 0 0 8502 499 0 0 25 0 1 0 806659972 739708928 162754 4294967295 134512640 135726644 3221224592 3221019768 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 180593 162755 300 300 0 180293 0
vsize: 722372
[startup+100.005 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 28489
Raw data (stat): 28489 (pb2sat) R 28488 20224 20223 0 -1 0 265177 0 0 0 9460 541 0 0 25 0 1 0 806659972 397877248 96710 4294967295 134512640 135726644 3221224592 3221222944 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97138 96710 300 300 0 96838 0
vsize: 388552
[startup+100.957 s]
Raw data (loadavg): 0.96 0.94 0.91 1/53 28489
Raw data (stat): 28489 (pb2sat) R 28488 20224 20223 0 -1 0 265177 0 0 0 9460 541 0 0 25 0 1 0 806659972 397877248 96710 4294967295 134512640 135726644 3221224592 3221222944 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97138 96710 300 300 0 96838 0
vsize: 0

Child status: 1
Real time (s): 100.957
CPU time (s): 100.961
CPU user time (s): 95.3435
CPU system time (s): 5.61715
CPU usage (%): 100.004
Max. virtual memory (Kb): 722372
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####