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-ss97-4.opb
MD5SUM417d3abd60fd3b9eb4200ff5119a92c4
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 813
Optimality of the best value was proved NO
Number of terms in the objective function 1798
Biggest coefficient in the objective function 349
Number of bits for the biggest coefficient in the objective function 9
Sum of the numbers in the objective function 104116
Number of bits of the sum of numbers in the objective function 17
Biggest number in a constraint 349
Number of bits of the biggest number in a constraint 9
Biggest sum of numbers in a constraint 104116
Number of bits of the biggest sum of numbers17
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.05084
Number of variables2289
Total number of constraints3052
Number of constraints which are clauses360
Number of constraints which are cardinality constraints (but not clauses)2692
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint195

Trace number 42232 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 03:58:11 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25453 boxname=wulflinc4 idbench=355 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  417d3abd60fd3b9eb4200ff5119a92c4  /oldhome/oroussel/tmp/wulflinc4/normalized-ss97-4.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-ss97-4.opb
IDLAUNCH: 25453
/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:        738456 kB
Buffers:         33952 kB
Cached:         240300 kB
SwapCached:        944 kB
Active:          44004 kB
Inactive:       232368 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        738204 kB
SwapTotal:     2097136 kB
SwapFree:      2095208 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14088 kB
Committed_AS:    71908 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 04:00:33 (client local time) WITH STATUS 1 IN 141.738 SECONDS
stats: 25453 7 141.738 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: 19848
c big objective detected
c trying from 0 to 511
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): 0.91 0.97 0.91 1/54 20306
Raw data (stat): 20306 (runsolver) R 20305 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 967692564 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+10.0005 s]
Raw data (loadavg): 0.93 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 23279 0 0 0 948 51 0 0 25 0 1 0 967692564 86556672 15292 4294967295 134512640 135730672 3221224592 3220600640 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21132 15292 301 301 0 20831 0
vsize: 84528
[startup+20.0015 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 49411 0 0 0 1892 106 0 0 25 0 1 0 967692564 161214464 27143 4294967295 134512640 135730672 3221224592 3221059040 134776212 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 39359 27143 301 301 0 39058 0
vsize: 157436
[startup+30.0021 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 79906 0 0 0 2833 166 0 0 25 0 1 0 967692564 278884352 56947 4294967295 134512640 135730672 3221224592 3220859936 135284048 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 68087 56947 301 301 0 67786 0
vsize: 272348
[startup+40.0019 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 101478 0 0 0 3783 216 0 0 25 0 1 0 967692564 327114752 57359 4294967295 134512640 135730672 3221224592 3220728512 135109362 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 79862 57359 301 301 0 79561 0
vsize: 319448
[startup+50.0021 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 119253 0 0 0 4741 257 0 0 25 0 1 0 967692564 352391168 74927 4294967295 134512640 135730672 3221224592 3220797880 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86033 74928 301 301 0 85732 0
vsize: 344132
[startup+60.0027 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 133842 0 0 0 5705 294 0 0 25 0 1 0 967692564 403017728 87285 4294967295 134512640 135730672 3221224592 3221222784 134813873 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98393 87285 301 301 0 98092 0
vsize: 393572
[startup+70.0026 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 143613 0 0 0 6682 317 0 0 25 0 1 0 967692564 436269056 97022 4294967295 134512640 135730672 3221224592 3220477680 134788104 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 106511 97022 301 301 0 106210 0
vsize: 426044
[startup+80.0037 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 172214 0 0 0 7622 378 0 0 25 0 1 0 967692564 525156352 107053 4294967295 134512640 135730672 3221224592 3220659404 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 128212 107054 301 301 0 127911 0
vsize: 512848
[startup+90.0034 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 206791 0 0 0 8544 455 0 0 25 0 1 0 967692564 625819648 116878 4294967295 134512640 135730672 3221224592 3220515408 134783064 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152788 116878 301 301 0 152487 0
vsize: 611152
[startup+100.003 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 214028 0 0 0 9529 471 0 0 25 0 1 0 967692564 625819648 123947 4294967295 134512640 135730672 3221224592 3221187072 134611270 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 152788 123947 301 301 0 152487 0
vsize: 611152
[startup+110.004 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 227514 0 0 0 10500 500 0 0 25 0 1 0 967692564 643932160 137222 4294967295 134512640 135730672 3221224592 3221108128 134770721 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157210 137222 301 301 0 156909 0
vsize: 628840
[startup+120.005 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 242614 0 0 0 11466 534 0 0 25 0 1 0 967692564 669478912 152115 4294967295 134512640 135730672 3221224592 3220738912 134551103 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163447 152117 301 301 0 163146 0
vsize: 653788
[startup+130.005 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 255463 0 0 0 12437 564 0 0 25 0 1 0 967692564 724254720 164792 4294967295 134512640 135730672 3221224592 3221149128 135284512 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 176853 164793 301 301 0 176552 0
vsize: 707280
[startup+140.005 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 260518 0 0 0 13412 588 0 0 25 0 1 0 967692564 413626368 100529 4294967295 134512640 135730672 3221224592 3221222952 135284037 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 100983 100529 301 301 0 100682 0
vsize: 403932
[startup+141.737 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 20306
Raw data (stat): 20306 (pb2sat-v2) R 20305 21152 21151 0 -1 0 260518 0 0 0 13412 588 0 0 25 0 1 0 967692564 413626368 100529 4294967295 134512640 135730672 3221224592 3221222952 135284037 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 100983 100529 301 301 0 100682 0
vsize: 0

Child status: 1
Real time (s): 141.736
CPU time (s): 141.738
CPU user time (s): 135.649
CPU system time (s): 6.08907
CPU usage (%): 100.002
Max. virtual memory (Kb): 707280
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####