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-v2-13-7/MIPLIB/miplib/normalized-mps-v2-13-7-p2756.opb
MD5SUMcc9b9a1bf5f3e0998bc97d2eed5cbbd9
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 4605
Optimality of the best value was proved NO
Number of terms in the objective function 2166
Biggest coefficient in the objective function 11000
Number of bits for the biggest coefficient in the objective function 14
Sum of the numbers in the objective function 321831
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 11000
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 321831
Number of bits of the biggest sum of numbers19
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.07484
Number of variables2756
Total number of constraints3511
Number of constraints which are clauses132
Number of constraints which are cardinality constraints (but not clauses)2976
Number of constraints which are nor clauses,nor cardinality constraints403
Minimum length of a constraint1
Maximum length of a constraint546

Trace number 35555 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-05-28 13:23:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24849 boxname=wulflinc5 idbench=1321 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  cc9b9a1bf5f3e0998bc97d2eed5cbbd9  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-p2756.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-p2756.opb
IDLAUNCH: 24849
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        715040 kB
Buffers:         34152 kB
Cached:         261536 kB
SwapCached:        588 kB
Active:          17780 kB
Inactive:       279916 kB
HighTotal:      131008 kB
HighFree:        25060 kB
LowTotal:       903652 kB
LowFree:        689980 kB
SwapTotal:     2097136 kB
SwapFree:      2095612 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5132 kB
Slab:            16232 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:25:20 (client local time) WITH STATUS 1 IN 106.168 SECONDS
stats: 24849 7 106.168 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 0.94 0.90 2/54 20447
Raw data (stat): 20447 (runsolver) R 20446 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806913386 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+10.0007 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 20447
Raw data (stat): 20447 (pb2sat) R 20446 7266 7265 0 -1 0 29410 0 0 0 934 65 0 0 25 0 1 0 806913386 89878528 18276 4294967295 134512640 135726644 3221224592 3221040496 134782666 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21943 18277 300 300 0 21643 0
vsize: 87772
[startup+20.0011 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 20447
Raw data (stat): 20447 (pb2sat) R 20446 7266 7265 0 -1 0 58085 0 0 0 1874 125 0 0 25 0 1 0 806913386 175972352 35737 4294967295 134512640 135726644 3221224592 3220805688 134809928 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42962 35739 300 300 0 42662 0
vsize: 171848
[startup+30.0018 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 20447
Raw data (stat): 20447 (pb2sat) R 20446 7266 7265 0 -1 0 98691 0 0 0 2795 204 0 0 25 0 1 0 806913386 299737088 54147 4294967295 134512640 135726644 3221224592 3220887344 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73178 54147 300 300 0 72878 0
vsize: 292712
[startup+40.0022 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 20447
Raw data (stat): 20447 (pb2sat) R 20446 7266 7265 0 -1 0 115241 0 0 0 3757 242 0 0 25 0 1 0 806913386 348295168 70469 4294967295 134512640 135726644 3221224592 3220637280 134767136 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85033 70469 300 300 0 84733 0
vsize: 340132
[startup+50.0023 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 20447
Raw data (stat): 20447 (pb2sat) R 20446 7266 7265 0 -1 0 150163 0 0 0 4690 309 0 0 25 0 1 0 806913386 544296960 104605 4294967295 134512640 135726644 3221224592 3220721376 134771708 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 132885 104607 300 300 0 132585 0
vsize: 531540
[startup+60.0021 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 20447
Raw data (stat): 20447 (pb2sat) R 20446 7266 7265 0 -1 0 196313 0 0 0 5592 407 0 0 25 0 1 0 806913386 597852160 107167 4294967295 134512640 135726644 3221224592 3220961312 134557558 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145960 107168 300 300 0 145660 0
vsize: 583840
[startup+70.0021 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20447
Raw data (stat): 20447 (pb2sat) R 20446 7266 7265 0 -1 0 208033 0 0 0 6567 433 0 0 25 0 1 0 806913386 631406592 118681 4294967295 134512640 135726644 3221224592 3220766568 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154152 118683 300 300 0 153852 0
vsize: 616608
[startup+80.0026 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20447
Raw data (stat): 20447 (pb2sat) R 20446 7266 7265 0 -1 0 227340 0 0 0 7525 475 0 0 25 0 1 0 806913386 655196160 137749 4294967295 134512640 135726644 3221224592 3220639848 134728571 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 159960 137751 300 300 0 159660 0
vsize: 639840
[startup+90.0023 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20447
Raw data (stat): 20447 (pb2sat) R 20446 7266 7265 0 -1 0 244078 0 0 0 8492 508 0 0 25 0 1 0 806913386 729452544 154294 4294967295 134512640 135726644 3221224592 3220684208 134784500 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 178089 154295 300 300 0 177789 0
vsize: 712356
[startup+100.008 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20447
Raw data (stat): 20447 (pb2sat) R 20446 7266 7265 0 -1 0 264308 0 0 0 9450 550 0 0 25 0 1 0 806913386 758243328 174292 4294967295 134512640 135726644 3221224592 3220713848 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185118 174293 300 300 0 184818 0
vsize: 740472
[startup+106.164 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 20447
Raw data (stat): 20447 (pb2sat) R 20446 7266 7265 0 -1 0 264308 0 0 0 9450 550 0 0 25 0 1 0 806913386 758243328 174292 4294967295 134512640 135726644 3221224592 3220713848 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185118 174293 300 300 0 184818 0
vsize: 0

Child status: 1
Real time (s): 106.164
CPU time (s): 106.168
CPU user time (s): 100.262
CPU system time (s): 5.9061
CPU usage (%): 100.004
Max. virtual memory (Kb): 740472
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####