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/MIPLIB/miplib/normalized-mps-v2-20-10-misc07.opb
MD5SUMf204f0495d2a5caf7ce1d50b166e58a2
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1076833280
Optimality of the best value was proved NO
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 1073741824
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 3287948287
Number of bits of the biggest sum of numbers32
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1236.09
Number of variables290
Total number of constraints471
Number of constraints which are clauses127
Number of constraints which are cardinality constraints (but not clauses)272
Number of constraints which are nor clauses,nor cardinality constraints72
Minimum length of a constraint1
Maximum length of a constraint263

Trace number 42405 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 06:56:43 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25625 boxname=wulflinc5 idbench=925 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f204f0495d2a5caf7ce1d50b166e58a2  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-misc07.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-misc07.opb
IDLAUNCH: 25625
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        718456 kB
Buffers:         34792 kB
Cached:         258676 kB
SwapCached:        700 kB
Active:          73112 kB
Inactive:       222512 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        718204 kB
SwapTotal:     2097136 kB
SwapFree:      2095508 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            14984 kB
Committed_AS:    63704 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:58:36 (client local time) WITH STATUS 1 IN 112.85 SECONDS
stats: 25625 7 112.85 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): 0.85 0.97 0.95 2/54 10303
Raw data (stat): 10303 (runsolver) R 10302 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968774080 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+10.001 s]
Raw data (loadavg): 0.87 0.97 0.95 2/54 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 29548 0 0 0 939 59 0 0 25 0 1 0 968774080 89194496 18411 4294967295 134512640 135730672 3221224576 3221156416 135284051 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21776 18411 301 301 0 21475 0
vsize: 87104
[startup+20.0016 s]
Raw data (loadavg): 0.89 0.97 0.95 2/54 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 58036 0 0 0 1882 116 0 0 25 0 1 0 968774080 174882816 35686 4294967295 134512640 135730672 3221224576 3221160048 134770727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42696 35686 301 301 0 42395 0
vsize: 170784
[startup+30.0017 s]
Raw data (loadavg): 0.91 0.97 0.95 2/54 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 98307 0 0 0 2802 195 0 0 25 0 1 0 968774080 298782720 53771 4294967295 134512640 135730672 3221224576 3221156888 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72945 53771 301 301 0 72644 0
vsize: 291780
[startup+40.0022 s]
Raw data (loadavg): 0.92 0.97 0.95 2/54 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 113880 0 0 0 3772 226 0 0 25 0 1 0 968774080 344772608 69123 4294967295 134512640 135730672 3221224576 3221161440 134770759 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84173 69123 301 301 0 83872 0
vsize: 336692
[startup+50.0023 s]
Raw data (loadavg): 0.93 0.97 0.95 2/54 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 140669 0 0 0 4716 282 0 0 25 0 1 0 968774080 526987264 95433 4294967295 134512640 135730672 3221224576 3221185928 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 128659 95436 301 301 0 128358 0
vsize: 514636
[startup+60.0033 s]
Raw data (loadavg): 0.94 0.97 0.95 2/54 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 195024 0 0 0 5603 395 0 0 25 0 1 0 968774080 596897792 105907 4294967295 134512640 135730672 3221224576 3221201308 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 145727 105907 301 301 0 145426 0
vsize: 582908
[startup+70.0034 s]
Raw data (loadavg): 0.95 0.97 0.95 2/54 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 206447 0 0 0 6580 418 0 0 25 0 1 0 968774080 630452224 117129 4294967295 134512640 135730672 3221224576 3221190760 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153919 117130 301 301 0 153618 0
vsize: 615676
[startup+80.0035 s]
Raw data (loadavg): 0.96 0.97 0.95 2/54 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 223930 0 0 0 7546 453 0 0 25 0 1 0 968774080 648024064 134380 4294967295 134512640 135730672 3221224576 3221195312 134770759 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158209 134380 301 301 0 157908 0
vsize: 632836
[startup+90.0043 s]
Raw data (loadavg): 0.96 0.97 0.95 2/54 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 242197 0 0 0 8512 487 0 0 25 0 1 0 968774080 724172800 152437 4294967295 134512640 135730672 3221224576 3221174768 134783984 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 176800 152437 301 301 0 176499 0
vsize: 707200
[startup+100.004 s]
Raw data (loadavg): 0.97 0.97 0.95 2/54 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 260166 0 0 0 9473 526 0 0 25 0 1 0 968774080 749584384 170200 4294967295 134512640 135730672 3221224576 3221190672 134546483 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183004 170202 301 301 0 182703 0
vsize: 732016
[startup+110.005 s]
Raw data (loadavg): 0.97 0.97 0.95 2/54 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 265983 0 0 0 10447 552 0 0 25 0 1 0 968774080 398155776 96776 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97206 96776 301 301 0 96905 0
vsize: 388824
[startup+112.857 s]
Raw data (loadavg): 0.97 0.97 0.95 1/53 10303
Raw data (stat): 10303 (pb2sat-v2) R 10302 7266 7265 0 -1 0 265983 0 0 0 10447 552 0 0 25 0 1 0 968774080 398155776 96776 4294967295 134512640 135730672 3221224576 3221222764 135281170 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 97206 96776 301 301 0 96905 0
vsize: 0

Child status: 1
Real time (s): 112.857
CPU time (s): 112.85
CPU user time (s): 107.114
CPU system time (s): 5.73613
CPU usage (%): 99.9939
Max. virtual memory (Kb): 732016
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####