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-nsrand_ipx.opb
MD5SUM1b24e93bee48f2c98e7d4820cbb13e8e
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483485
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 26715880447
Number of bits of the biggest sum of numbers35
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1225.16
Number of variables6651
Total number of constraints7355
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)6951
Number of constraints which are nor clauses,nor cardinality constraints404
Minimum length of a constraint1
Maximum length of a constraint6651

Trace number 42649 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 13:22:32 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25867 boxname=wulflinc6 idbench=1167 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1b24e93bee48f2c98e7d4820cbb13e8e  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-nsrand_ipx.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-nsrand_ipx.opb
IDLAUNCH: 25867
/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:        691284 kB
Buffers:         25900 kB
Cached:         294128 kB
SwapCached:       1000 kB
Active:          32444 kB
Inactive:       289744 kB
HighTotal:      131008 kB
HighFree:         7560 kB
LowTotal:       903652 kB
LowFree:        683724 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            15464 kB
Committed_AS:    63844 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:24:27 (client local time) WITH STATUS 1 IN 114.98 SECONDS
stats: 25867 7 114.98 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): 0.84 0.94 0.90 1/54 20325
Raw data (stat): 20325 (runsolver) R 20324 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971088319 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 s]
Raw data (loadavg): 0.87 0.94 0.90 2/54 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 25355 0 0 0 946 53 0 0 25 0 1 0 971088319 78229504 14265 4294967295 134512640 135730672 3221224576 3218443776 134786160 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19099 14265 301 301 0 18798 0
vsize: 76396
[startup+20 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 53179 0 0 0 1890 110 0 0 25 0 1 0 971088319 172171264 30879 4294967295 134512640 135730672 3221224576 3218791888 134611034 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42034 30880 301 301 0 41733 0
vsize: 168136
[startup+30.0007 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 82652 0 0 0 2835 165 0 0 25 0 1 0 971088319 249659392 50434 4294967295 134512640 135730672 3221224576 3218524184 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 60952 50434 301 301 0 60651 0
vsize: 243808
[startup+40.0013 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 108558 0 0 0 3778 222 0 0 25 0 1 0 971088319 342736896 63847 4294967295 134512640 135730672 3221224576 3218736536 135285989 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83676 63848 301 301 0 83375 0
vsize: 334704
[startup+50.0015 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 128291 0 0 0 4735 266 0 0 25 0 1 0 971088319 371122176 83355 4294967295 134512640 135730672 3221224576 3219266912 134786278 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 90606 83355 301 301 0 90305 0
vsize: 362424
[startup+60.0021 s]
Raw data (loadavg): 0.94 0.95 0.90 2/54 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 178386 0 0 0 5642 359 0 0 25 0 1 0 971088319 698503168 113882 4294967295 134512640 135730672 3221224576 3219107472 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170533 113886 301 301 0 170232 0
vsize: 682132
[startup+70.0018 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 201339 0 0 0 6589 412 0 0 25 0 1 0 971088319 631390208 112071 4294967295 134512640 135730672 3221224576 3220146204 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154148 112071 301 301 0 153847 0
vsize: 616592
[startup+80.0019 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 217975 0 0 0 7555 446 0 0 25 0 1 0 971088319 646529024 128474 4294967295 134512640 135730672 3221224576 3219659432 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157844 128474 301 301 0 157543 0
vsize: 631376
[startup+90.0025 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 238178 0 0 0 8511 491 0 0 25 0 1 0 971088319 676671488 148436 4294967295 134512640 135730672 3221224576 3219778288 134770712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 165203 148437 301 301 0 164902 0
vsize: 660812
[startup+100.002 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 253872 0 0 0 9478 525 0 0 25 0 1 0 971088319 749441024 163948 4294967295 134512640 135730672 3221224576 3220124752 135284048 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 182969 163948 301 301 0 182668 0
vsize: 731876
[startup+110.003 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 263602 0 0 0 10444 558 0 0 25 0 1 0 971088319 404230144 98255 4294967295 134512640 135730672 3221224576 3221222764 135281112 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98689 98255 301 301 0 98388 0
vsize: 394756
[startup+114.952 s]
Raw data (loadavg): 0.97 0.95 0.91 1/53 20325
Raw data (stat): 20325 (pb2sat-v2) R 20324 25568 25567 0 -1 0 263602 0 0 0 10444 558 0 0 25 0 1 0 971088319 404230144 98255 4294967295 134512640 135730672 3221224576 3221222764 135281112 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 98689 98255 301 301 0 98388 0
vsize: 0

Child status: 1
Real time (s): 114.951
CPU time (s): 114.98
CPU user time (s): 109.185
CPU system time (s): 5.79412
CPU usage (%): 100.025
Max. virtual memory (Kb): 731876
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####