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 34967 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc22 THE 2005-05-28 11:47:36 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24281 boxname=wulflinc22 idbench=355 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  417d3abd60fd3b9eb4200ff5119a92c4  /oldhome/oroussel/tmp/wulflinc22/normalized-ss97-4.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc22/normalized-ss97-4.opb
IDLAUNCH: 24281
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.031
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	: 3
cpu MHz		: 451.031
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:        914788 kB
Buffers:         32940 kB
Cached:          56504 kB
SwapCached:        384 kB
Active:          50908 kB
Inactive:        48400 kB
HighTotal:      131008 kB
HighFree:        75040 kB
LowTotal:       903652 kB
LowFree:        839748 kB
SwapTotal:     2097892 kB
SwapFree:      2096800 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5540 kB
Slab:            14944 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 11:49:21 (client local time) WITH STATUS 1 IN 105.028 SECONDS
stats: 24281 7 105.028 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): 0.92 0.95 0.90 2/54 32280
Raw data (stat): 32280 (runsolver) R 32279 23310 23309 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864558097 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+10.0002 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 32280
Raw data (stat): 32280 (pb2sat) R 32279 23310 23309 0 -1 0 29568 0 0 0 929 69 0 0 25 0 1 0 864558097 89325568 18532 4294967295 134512640 135726644 3221224592 3220712108 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21808 18532 300 300 0 21508 0
vsize: 87232
[startup+20.0012 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 32280
Raw data (stat): 32280 (pb2sat) R 32279 23310 23309 0 -1 0 59102 0 0 0 1860 138 0 0 25 0 1 0 864558097 176635904 36841 4294967295 134512640 135726644 3221224592 3220813680 134767231 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43124 36842 300 300 0 42824 0
vsize: 172496
[startup+30.0019 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 32280
Raw data (stat): 32280 (pb2sat) R 32279 23310 23309 0 -1 0 99213 0 0 0 2779 219 0 0 25 0 1 0 864558097 333279232 54764 4294967295 134512640 135726644 3221224592 3221183616 134780435 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 81367 54764 300 300 0 81067 0
vsize: 325468
[startup+40.0023 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 32280
Raw data (stat): 32280 (pb2sat) R 32279 23310 23309 0 -1 0 116713 0 0 0 3741 258 0 0 25 0 1 0 864558097 348688384 72021 4294967295 134512640 135726644 3221224592 3221205744 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85129 72021 300 300 0 84829 0
vsize: 340516
[startup+50.0036 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 32280
Raw data (stat): 32280 (pb2sat) R 32279 23310 23309 0 -1 0 158255 0 0 0 4658 341 0 0 25 0 1 0 864558097 555368448 112521 4294967295 134512640 135726644 3221224592 3220927976 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135588 112523 300 300 0 135288 0
vsize: 542352
[startup+60.003 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 32280
Raw data (stat): 32280 (pb2sat) R 32279 23310 23309 0 -1 0 197935 0 0 0 5571 428 0 0 25 0 1 0 864558097 597028864 108863 4294967295 134512640 135726644 3221224592 3221003788 135287586 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145759 108863 300 300 0 145459 0
vsize: 583036
[startup+70.0035 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 32280
Raw data (stat): 32280 (pb2sat) R 32279 23310 23309 0 -1 0 210038 0 0 0 6543 457 0 0 25 0 1 0 864558097 630583296 120754 4294967295 134512640 135726644 3221224592 3221173344 134554732 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153951 120754 300 300 0 153651 0
vsize: 615804
[startup+80.0035 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 32280
Raw data (stat): 32280 (pb2sat) R 32279 23310 23309 0 -1 0 229643 0 0 0 7503 497 0 0 25 0 1 0 864558097 656265216 140125 4294967295 134512640 135726644 3221224592 3220879768 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160221 140125 300 300 0 159921 0
vsize: 640884
[startup+90.0042 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 32280
Raw data (stat): 32280 (pb2sat) R 32279 23310 23309 0 -1 0 246411 0 0 0 8465 534 0 0 25 0 1 0 864558097 730521600 156701 4294967295 134512640 135726644 3221224592 3221175768 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 178350 156701 300 300 0 178050 0
vsize: 713400
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 32280
Raw data (stat): 32280 (pb2sat) R 32279 23310 23309 0 -1 0 266174 0 0 0 9425 575 0 0 25 0 1 0 864558097 759685120 176238 4294967295 134512640 135726644 3221224592 3221222576 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185470 176238 300 300 0 185170 0
vsize: 741880
[startup+105.028 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 32280
Raw data (stat): 32280 (pb2sat) R 32279 23310 23309 0 -1 0 266174 0 0 0 9425 575 0 0 25 0 1 0 864558097 759685120 176238 4294967295 134512640 135726644 3221224592 3221222576 135280446 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 185470 176238 300 300 0 185170 0
vsize: 0

Child status: 1
Real time (s): 105.028
CPU time (s): 105.028
CPU user time (s): 98.913
CPU system time (s): 6.11507
CPU usage (%): 100
Max. virtual memory (Kb): 741880
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####