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/web/www.ps.uni-sb.de/~walser/benchmarks/course-ass/normalized-ws97-3.opb
MD5SUM77c89bda49ebcdc0428e1292512864a9
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3080
Optimality of the best value was proved NO
Number of terms in the objective function 2792
Biggest coefficient in the objective function 1000
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 1385986
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 1000
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1385986
Number of bits of the biggest sum of numbers21
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.07184
Number of variables3300
Total number of constraints5284
Number of constraints which are clauses1364
Number of constraints which are cardinality constraints (but not clauses)3920
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint220

Trace number 42235 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 04:00:54 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25455 boxname=wulflinc4 idbench=357 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  77c89bda49ebcdc0428e1292512864a9  /oldhome/oroussel/tmp/wulflinc4/normalized-ws97-3.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-ws97-3.opb
IDLAUNCH: 25455
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        737952 kB
Buffers:         33984 kB
Cached:         240540 kB
SwapCached:        944 kB
Active:          44208 kB
Inactive:       232480 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        737700 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14172 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 04:03:22 (client local time) WITH STATUS 1 IN 147.339 SECONDS
stats: 25455 7 147.339 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 242716
c big objective detected
c trying from 0 to 511
c CONFLICT during preprocess 
c trying from 512 to 1023

	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): 0.80 0.92 0.89 2/54 20492
Raw data (stat): 20492 (runsolver) R 20491 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 967708918 884736 94 4294967295 134512640 135332820 3221224480 3221219660 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+10.0003 s]
Raw data (loadavg): 0.83 0.93 0.90 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 25628 0 0 0 938 59 0 0 25 0 1 0 967708918 79245312 14385 4294967295 134512640 135730672 3221224592 3221223088 134747543 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19347 14385 301 301 0 19046 0
vsize: 77388
[startup+20.0017 s]
Raw data (loadavg): 0.85 0.93 0.90 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 36848 0 0 0 1915 83 0 0 25 0 1 0 967708918 135245824 25387 4294967295 134512640 135730672 3221224592 3221168808 135284322 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 33019 25387 301 301 0 32718 0
vsize: 132076
[startup+30.0027 s]
Raw data (loadavg): 0.88 0.93 0.90 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 60429 0 0 0 2862 136 0 0 25 0 1 0 967708918 177815552 38143 4294967295 134512640 135730672 3221224592 3220972592 134786238 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43412 38143 301 301 0 43111 0
vsize: 173648
[startup+40.003 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 97455 0 0 0 3789 209 0 0 25 0 1 0 967708918 289001472 52977 4294967295 134512640 135730672 3221224592 3221154400 135288364 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 70557 52977 301 301 0 70256 0
vsize: 282228
[startup+50.0043 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 114541 0 0 0 4753 245 0 0 25 0 1 0 967708918 346480640 69840 4294967295 134512640 135730672 3221224592 3220353136 135109362 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84590 69840 301 301 0 84289 0
vsize: 338360
[startup+60.0042 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 156529 0 0 0 5675 322 0 0 25 0 1 0 967708918 553295872 110648 4294967295 134512640 135730672 3221224592 3220481360 134776110 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 135082 110648 301 301 0 134781 0
vsize: 540328
[startup+70.0056 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 189895 0 0 0 6603 394 0 0 25 0 1 0 967708918 582651904 101854 4294967295 134512640 135730672 3221224592 3221176800 134546392 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 142249 101854 301 301 0 141948 0
vsize: 568996
[startup+80.0069 s]
Raw data (loadavg): 0.94 0.94 0.90 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 201423 0 0 0 7578 420 0 0 25 0 1 0 967708918 620531712 113172 4294967295 134512640 135730672 3221224592 3220423228 134608060 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 151497 113172 301 301 0 151196 0
vsize: 605988
[startup+90.008 s]
Raw data (loadavg): 0.95 0.94 0.90 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 216658 0 0 0 8540 458 0 0 25 0 1 0 967708918 659382272 124611 4294967295 134512640 135730672 3221224592 3221222896 134787414 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 160982 124611 301 301 0 160681 0
vsize: 643928
[startup+100.008 s]
Raw data (loadavg): 0.96 0.94 0.90 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 231006 0 0 0 9506 492 0 0 25 0 1 0 967708918 718180352 138959 4294967295 134512640 135730672 3221224592 3221222896 134787414 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 175337 138959 301 301 0 175036 0
vsize: 701348
[startup+110.01 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 239838 0 0 0 10485 512 0 0 25 0 1 0 967708918 748322816 147761 4294967295 134512640 135730672 3221224592 3219963540 135281100 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182696 147761 301 301 0 182395 0
vsize: 730784
[startup+120.011 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 250977 0 0 0 11461 536 0 0 25 0 1 0 967708918 748322816 158681 4294967295 134512640 135730672 3221224592 3220544832 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182696 158681 301 301 0 182395 0
vsize: 730784
[startup+130.012 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 262700 0 0 0 12437 561 0 0 25 0 1 0 967708918 748322816 170174 4294967295 134512640 135730672 3221224592 3220602700 135109345 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182696 170174 301 301 0 182395 0
vsize: 730784
[startup+140.013 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 268700 0 0 0 13422 576 0 0 25 0 1 0 967708918 749371392 176056 4294967295 134512640 135730672 3221224592 3221223032 135104817 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182952 176056 301 301 0 182651 0
vsize: 731808
[startup+147.365 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 20492
Raw data (stat): 20492 (pb2sat-v2) R 20491 21152 21151 0 -1 0 268700 0 0 0 13422 576 0 0 25 0 1 0 967708918 749371392 176056 4294967295 134512640 135730672 3221224592 3221223032 135104817 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182952 176056 301 301 0 182651 0
vsize: 0

Child status: 1
Real time (s): 147.365
CPU time (s): 147.339
CPU user time (s): 141.231
CPU system time (s): 6.10807
CPU usage (%): 99.9822
Max. virtual memory (Kb): 731808
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####