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/miplib2003/normalized-mps-v2-20-10-p2756.opb
MD5SUMf2badf1ad4c3213045697b74fa812a03
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 4605
Optimality of the best value was proved NO
Number of terms in the objective function 2166
Biggest coefficient in the objective function 11000
Number of bits for the biggest coefficient in the objective function 14
Sum of the numbers in the objective function 321831
Number of bits of the sum of numbers in the objective function 19
Biggest number in a constraint 11000
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 321831
Number of bits of the biggest sum of numbers19
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.06284
Number of variables2756
Total number of constraints3511
Number of constraints which are clauses132
Number of constraints which are cardinality constraints (but not clauses)2976
Number of constraints which are nor clauses,nor cardinality constraints403
Minimum length of a constraint1
Maximum length of a constraint546

Trace number 35213 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc15 THE 2005-05-28 12:27:00 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24520 boxname=wulflinc15 idbench=992 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  f2badf1ad4c3213045697b74fa812a03  /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-p2756.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc15/normalized-mps-v2-20-10-p2756.opb
IDLAUNCH: 24520
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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		: 450.999
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:        881508 kB
Buffers:         33252 kB
Cached:          97724 kB
SwapCached:        604 kB
Active:          46312 kB
Inactive:        86792 kB
HighTotal:      131008 kB
HighFree:        31080 kB
LowTotal:       903652 kB
LowFree:        850428 kB
SwapTotal:     2097136 kB
SwapFree:      2095616 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5116 kB
Slab:            14576 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:28:47 (client local time) WITH STATUS 1 IN 106.398 SECONDS
stats: 24520 7 106.398 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 0.91 1/54 2225
Raw data (stat): 2225 (runsolver) D 2224 23514 23513 0 -1 64 8 0 0 0 0 0 0 0 18 0 1 0 806567651 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 3225161850 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0007 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 2225
Raw data (stat): 2225 (pb2sat) R 2224 23514 23513 0 -1 0 29547 0 0 0 933 66 0 0 25 0 1 0 806567651 90148864 18410 4294967295 134512640 135726644 3221224576 3220637232 134766388 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22009 18410 300 300 0 21709 0
vsize: 88036
[startup+20.0065 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 2225
Raw data (stat): 2225 (pb2sat) R 2224 23514 23513 0 -1 0 58196 0 0 0 1875 124 0 0 25 0 1 0 806567651 176107520 35845 4294967295 134512640 135726644 3221224576 3220621312 135279080 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 42995 35845 300 300 0 42695 0
vsize: 171980
[startup+30.0074 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 2225
Raw data (stat): 2225 (pb2sat) R 2224 23514 23513 0 -1 0 98767 0 0 0 2792 207 0 0 25 0 1 0 806567651 299737088 54221 4294967295 134512640 135726644 3221224576 3220986796 135298008 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73178 54221 300 300 0 72878 0
vsize: 292712
[startup+40.0091 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 2225
Raw data (stat): 2225 (pb2sat) R 2224 23514 23513 0 -1 0 115353 0 0 0 3758 241 0 0 25 0 1 0 806567651 348565504 70578 4294967295 134512640 135726644 3221224576 3220499256 135281261 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85099 70578 300 300 0 84799 0
vsize: 340396
[startup+50.009 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 2225
Raw data (stat): 2225 (pb2sat) R 2224 23514 23513 0 -1 0 150661 0 0 0 4695 304 0 0 25 0 1 0 806567651 545107968 105086 4294967295 134512640 135726644 3221224576 3220721324 135297992 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 133083 105086 300 300 0 132783 0
vsize: 532332
[startup+60.0088 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 2225
Raw data (stat): 2225 (pb2sat) R 2224 23514 23513 0 -1 0 196378 0 0 0 5599 400 0 0 25 0 1 0 806567651 597852160 107230 4294967295 134512640 135726644 3221224576 3221033292 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145960 107230 300 300 0 145660 0
vsize: 583840
[startup+70.0086 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 2225
Raw data (stat): 2225 (pb2sat) R 2224 23514 23513 0 -1 0 208115 0 0 0 6576 424 0 0 25 0 1 0 806567651 631406592 118760 4294967295 134512640 135726644 3221224576 3220771728 134554706 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154152 118760 300 300 0 153852 0
vsize: 616608
[startup+80.0163 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 2225
Raw data (stat): 2225 (pb2sat) R 2224 23514 23513 0 -1 0 227354 0 0 0 7538 463 0 0 25 0 1 0 806567651 655196160 137762 4294967295 134512640 135726644 3221224576 3220677312 135278591 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159960 137762 300 300 0 159660 0
vsize: 639840
[startup+90.0161 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 2225
Raw data (stat): 2225 (pb2sat) R 2224 23514 23513 0 -1 0 243863 0 0 0 8503 497 0 0 25 0 1 0 806567651 729182208 154081 4294967295 134512640 135726644 3221224576 3220797200 134780450 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 178023 154081 300 300 0 177723 0
vsize: 712092
[startup+100.016 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 2225
Raw data (stat): 2225 (pb2sat) R 2224 23514 23513 0 -1 0 263786 0 0 0 9462 539 0 0 25 0 1 0 806567651 757432320 173775 4294967295 134512640 135726644 3221224576 3220612128 134554706 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184953 173776 300 300 0 184653 0
vsize: 739680
[startup+106.508 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 2225
Raw data (stat): 2225 (pb2sat) R 2224 23514 23513 0 -1 0 263786 0 0 0 9462 539 0 0 25 0 1 0 806567651 757432320 173775 4294967295 134512640 135726644 3221224576 3220612128 134554706 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184953 173776 300 300 0 184653 0
vsize: 0

Child status: 1
Real time (s): 106.508
CPU time (s): 106.398
CPU user time (s): 100.595
CPU system time (s): 5.80312
CPU usage (%): 99.8968
Max. virtual memory (Kb): 739680
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####