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/plato.asu.edu/pub/unibo/normalized-mps-v2-13-7-B2C1S1.opb
MD5SUM2da614f2ff412c1e07d8c65342ffb362
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 25888
Biggest coefficient in the objective function 340787200
Number of bits for the biggest coefficient in the objective function 29
Sum of the numbers in the objective function 293013913600
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 340787200
Number of bits of the biggest number in a constraint 29
Biggest sum of numbers in a constraint 293013913600
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.648901
Number of variables71968
Total number of constraints4192
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)288
Number of constraints which are nor clauses,nor cardinality constraints3904
Minimum length of a constraint1
Maximum length of a constraint960

Trace number 43013 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 21:16:25 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26232 boxname=wulflinc6 idbench=1532 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  2da614f2ff412c1e07d8c65342ffb362  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-B2C1S1.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-13-7-B2C1S1.opb
IDLAUNCH: 26232
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        628912 kB
Buffers:         22032 kB
Cached:         360508 kB
SwapCached:        980 kB
Active:          31060 kB
Inactive:       353608 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        628660 kB
SwapTotal:     2097136 kB
SwapFree:      2095216 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            15380 kB
Committed_AS:    63832 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 21:18:21 (client local time) WITH STATUS 1 IN 115.961 SECONDS
stats: 26232 7 115.961 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): 0.91 0.95 0.90 2/54 26719
Raw data (stat): 26719 (runsolver) R 26718 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 973932002 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+10.0004 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 2219 0 0 0 994 5 0 0 25 0 1 0 973932002 8093696 1542 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1976 1542 301 301 0 1675 0
vsize: 7904
[startup+20.0007 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 25820 0 0 0 1941 57 0 0 25 0 1 0 973932002 78688256 14852 4294967295 134512640 135730672 3221224576 3220867760 134770605 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19211 14853 301 301 0 18910 0
vsize: 76844
[startup+30.0006 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 54518 0 0 0 2882 117 0 0 25 0 1 0 973932002 172900352 32335 4294967295 134512640 135730672 3221224576 3220919352 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42212 32335 301 301 0 41911 0
vsize: 168848
[startup+40.0007 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 96402 0 0 0 3800 199 0 0 25 0 1 0 973932002 301395968 52023 4294967295 134512640 135730672 3221224576 3220918336 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73583 52024 301 301 0 73282 0
vsize: 294332
[startup+50.0008 s]
Raw data (loadavg): 1.01 0.97 0.91 2/54 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 111943 0 0 0 4767 233 0 0 25 0 1 0 973932002 344817664 67332 4294967295 134512640 135730672 3221224576 3220902184 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84184 67332 301 301 0 83883 0
vsize: 336736
[startup+60.0003 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 136913 0 0 0 5716 284 0 0 25 0 1 0 973932002 523517952 91912 4294967295 134512640 135730672 3221224576 3220954424 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 127812 91914 301 301 0 127511 0
vsize: 511248
[startup+70.0001 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 194594 0 0 0 6600 400 0 0 25 0 1 0 973932002 598970368 105603 4294967295 134512640 135730672 3221224576 3220926188 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 146233 105604 301 301 0 145932 0
vsize: 584932
[startup+80.0003 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 206701 0 0 0 7574 426 0 0 25 0 1 0 973932002 632524800 117496 4294967295 134512640 135730672 3221224576 3220949760 135288364 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154425 117497 301 301 0 154124 0
vsize: 617700
[startup+89.9997 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 225698 0 0 0 8533 468 0 0 25 0 1 0 973932002 653340672 136248 4294967295 134512640 135730672 3221224576 3220980976 134770873 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159507 136249 301 301 0 159206 0
vsize: 638028
[startup+99.9996 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 243791 0 0 0 9494 507 0 0 25 0 1 0 973932002 729354240 154133 4294967295 134512640 135730672 3221224576 3220970640 134784086 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 178065 154133 301 301 0 177764 0
vsize: 712260
[startup+110 s]
Raw data (loadavg): 1.08 0.99 0.92 2/54 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 263734 0 0 0 10442 552 0 0 25 0 1 0 973932002 757604352 173846 4294967295 134512640 135730672 3221224576 3221004808 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184962 173846 301 301 0 184661 0
vsize: 739848
[startup+116.02 s]
Raw data (loadavg): 1.07 0.99 0.92 1/53 26719
Raw data (stat): 26719 (pb2sat-v2) R 26718 25568 25567 0 -1 0 263734 0 0 0 10442 552 0 0 25 0 1 0 973932002 757604352 173846 4294967295 134512640 135730672 3221224576 3221004808 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184962 173846 301 301 0 184661 0
vsize: 0

Child status: 1
Real time (s): 116.02
CPU time (s): 115.961
CPU user time (s): 110.042
CPU system time (s): 5.9191
CPU usage (%): 99.9497
Max. virtual memory (Kb): 739848
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####