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-v2-20-10/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-blp-ic97.opb
MD5SUM827023c27ed4657a4077da2b27355df8
Bench Categoryoptimization, big integers (OPTBIGINT)
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 83886080000000
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 508832629179091
Number of bits of the biggest sum of numbers49
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.72089
Number of variables11503
Total number of constraints10724
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10588
Number of constraints which are nor clauses,nor cardinality constraints136
Minimum length of a constraint1
Maximum length of a constraint9784

Trace number 35373 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc3 THE 2005-05-28 13:01:44 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24680 boxname=wulflinc3 idbench=1152 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  827023c27ed4657a4077da2b27355df8  /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-blp-ic97.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc3/normalized-mps-v2-20-10-blp-ic97.opb
IDLAUNCH: 24680
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.190
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		: 451.190
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:        824368 kB
Buffers:         33724 kB
Cached:         154192 kB
SwapCached:        240 kB
Active:          58324 kB
Inactive:       132184 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        824116 kB
SwapTotal:     2097136 kB
SwapFree:      2096480 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6324 kB
Slab:            14044 kB
Committed_AS:    71792 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:03:31 (client local time) WITH STATUS 1 IN 106.893 SECONDS
stats: 24680 7 106.893 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): 0.87 0.95 0.91 1/54 28916
Raw data (stat): 28916 (runsolver) R 28915 20224 20223 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806774783 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+10.0016 s]
Raw data (loadavg): 0.89 0.95 0.91 2/54 28916
Raw data (stat): 28916 (pb2sat) R 28915 20224 20223 0 -1 0 13694 0 0 0 968 30 0 0 25 0 1 0 806774783 42332160 8270 4294967295 134512640 135726644 3221224576 3221168208 134767049 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 10335 8270 300 300 0 10035 0
vsize: 41340
[startup+20.0025 s]
Raw data (loadavg): 0.90 0.95 0.91 2/54 28916
Raw data (stat): 28916 (pb2sat) R 28915 20224 20223 0 -1 0 36715 0 0 0 1917 81 0 0 25 0 1 0 806774783 110587904 21155 4294967295 134512640 135726644 3221224576 3221221728 134573203 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 26999 21155 300 300 0 26699 0
vsize: 107996
[startup+30.0018 s]
Raw data (loadavg): 0.92 0.96 0.91 2/54 28916
Raw data (stat): 28916 (pb2sat) R 28915 20224 20223 0 -1 0 53842 0 0 0 2877 121 0 0 25 0 1 0 806774783 154693632 31943 4294967295 134512640 135726644 3221224576 3221221776 134576140 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37767 31943 300 300 0 37467 0
vsize: 151068
[startup+40.003 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 28916
Raw data (stat): 28916 (pb2sat) R 28915 20224 20223 0 -1 0 75589 0 0 0 3831 167 0 0 25 0 1 0 806774783 219803648 44367 4294967295 134512640 135726644 3221224576 3217479724 135287576 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 53663 44367 300 300 0 53363 0
vsize: 214652
[startup+50.0039 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 28916
Raw data (stat): 28916 (pb2sat) R 28915 20224 20223 0 -1 0 102883 0 0 0 4771 227 0 0 25 0 1 0 806774783 317612032 59120 4294967295 134512640 135726644 3221224576 3217336372 134606448 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 77542 59121 300 300 0 77242 0
vsize: 310168
[startup+60.0043 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 28916
Raw data (stat): 28916 (pb2sat) R 28915 20224 20223 0 -1 0 147691 0 0 0 5698 300 0 0 25 0 1 0 806774783 527728640 102690 4294967295 134512640 135726644 3221224576 3217358256 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 128840 102690 300 300 0 128540 0
vsize: 515360
[startup+70.0047 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 28916
Raw data (stat): 28916 (pb2sat) R 28915 20224 20223 0 -1 0 183118 0 0 0 6619 380 0 0 25 0 1 0 806774783 557084672 95897 4294967295 134512640 135726644 3221224576 3217473024 134783203 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136007 95899 300 300 0 135707 0
vsize: 544028
[startup+80.0054 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 28916
Raw data (stat): 28916 (pb2sat) R 28915 20224 20223 0 -1 0 198827 0 0 0 7583 416 0 0 25 0 1 0 806774783 608485376 111358 4294967295 134512640 135726644 3221224576 3217357744 135284902 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 148556 111358 300 300 0 148256 0
vsize: 594224
[startup+90.0058 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 28916
Raw data (stat): 28916 (pb2sat) R 28915 20224 20223 0 -1 0 221589 0 0 0 8534 465 0 0 25 0 1 0 806774783 644886528 133820 4294967295 134512640 135726644 3221224576 3217348696 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157443 133821 300 300 0 157143 0
vsize: 629772
[startup+100.006 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 28916
Raw data (stat): 28916 (pb2sat) R 28915 20224 20223 0 -1 0 239803 0 0 0 9493 507 0 0 25 0 1 0 806774783 675876864 151792 4294967295 134512640 135726644 3221224576 3221222656 135278584 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 165009 151792 300 300 0 164709 0
vsize: 660036
[startup+106.899 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 28916
Raw data (stat): 28916 (pb2sat) R 28915 20224 20223 0 -1 0 239803 0 0 0 9493 507 0 0 25 0 1 0 806774783 675876864 151792 4294967295 134512640 135726644 3221224576 3221222656 135278584 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 165009 151792 300 300 0 164709 0
vsize: 0

Child status: 1
Real time (s): 106.898
CPU time (s): 106.893
CPU user time (s): 101.515
CPU system time (s): 5.37818
CPU usage (%): 99.9949
Max. virtual memory (Kb): 660036
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####