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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-scrs8.opb
MD5SUM5dc586d2135331b914090f6587c7f4ee
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 24750
Biggest coefficient in the objective function 284830543390965760000
Number of bits for the biggest coefficient in the objective function 68
Sum of the numbers in the objective function 7193462013935082274816
Number of bits of the sum of numbers in the objective function 73
Biggest number in a constraint 284830543390965760000
Number of bits of the biggest number in a constraint 68
Biggest sum of numbers in a constraint 7193462013935082274816
Number of bits of the biggest sum of numbers73
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.300953
Number of variables35070
Total number of constraints490
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints490
Minimum length of a constraint30
Maximum length of a constraint1110

Trace number 35091 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-28 12:12:34 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24395 boxname=wulflinc1 idbench=867 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5dc586d2135331b914090f6587c7f4ee  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-scrs8.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-scrs8.opb
IDLAUNCH: 24395
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        697316 kB
Buffers:         36944 kB
Cached:         275768 kB
SwapCached:        700 kB
Active:          26268 kB
Inactive:       288720 kB
HighTotal:      131008 kB
HighFree:        27580 kB
LowTotal:       903652 kB
LowFree:        669736 kB
SwapTotal:     2097136 kB
SwapFree:      2095368 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5812 kB
Slab:            16468 kB
Committed_AS:    92708 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:14:29 (client local time) WITH STATUS 1 IN 114.447 SECONDS
stats: 24395 7 114.447 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): 1.11 1.00 0.92 1/55 19364
Raw data (stat): 19364 (runsolver) R 19363 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 749630865 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+10.0006 s]
Raw data (loadavg): 1.10 1.00 0.92 2/55 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 2193 0 0 0 992 6 0 0 25 0 1 0 749630865 8089600 1518 4294967295 134512640 135726644 3221224592 3221221680 134556171 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 1975 1518 300 300 0 1675 0
vsize: 7900
[startup+20.0002 s]
Raw data (loadavg): 1.08 1.00 0.92 2/55 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 29547 0 0 0 1936 63 0 0 25 0 1 0 749630865 92401664 18411 4294967295 134512640 135726644 3221224592 3211299848 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22559 18411 300 300 0 22259 0
vsize: 90236
[startup+30 s]
Raw data (loadavg): 1.07 1.00 0.92 2/55 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 58174 0 0 0 2881 117 0 0 25 0 1 0 749630865 188829696 35798 4294967295 134512640 135726644 3221224592 3211300048 134766318 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 46101 35798 300 300 0 45801 0
vsize: 184404
[startup+39.9998 s]
Raw data (loadavg): 1.06 1.00 0.92 2/55 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 85172 0 0 0 3834 165 0 0 25 0 1 0 749630865 253018112 52596 4294967295 134512640 135726644 3221224592 3211300096 134782652 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 61772 52596 300 300 0 61472 0
vsize: 247088
[startup+50.0006 s]
Raw data (loadavg): 1.05 1.00 0.92 2/55 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 115305 0 0 0 4774 225 0 0 25 0 1 0 749630865 364109824 70161 4294967295 134512640 135726644 3221224592 3211300496 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 88894 70161 300 300 0 88594 0
vsize: 355576
[startup+60.0004 s]
Raw data (loadavg): 1.04 1.00 0.92 2/55 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 155562 0 0 0 5698 301 0 0 25 0 1 0 749630865 491847680 89572 4294967295 134512640 135726644 3221224592 3211298044 135297967 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120080 89572 300 300 0 119780 0
vsize: 480320
[startup+70.0002 s]
Raw data (loadavg): 1.03 1.00 0.92 2/55 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 168649 0 0 0 6673 326 0 0 25 0 1 0 749630865 491847680 102394 4294967295 134512640 135726644 3221224592 3211300108 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 120080 102394 300 300 0 119780 0
vsize: 480320
[startup+80.0009 s]
Raw data (loadavg): 1.03 1.00 0.92 2/55 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 209572 0 0 0 7594 406 0 0 25 0 1 0 749630865 613498880 118514 4294967295 134512640 135726644 3221224592 3211298424 135101149 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 149780 118514 300 300 0 149480 0
vsize: 599120
[startup+90.0007 s]
Raw data (loadavg): 1.02 1.00 0.92 2/55 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 226810 0 0 0 8561 439 0 0 25 0 1 0 749630865 674029568 135425 4294967295 134512640 135726644 3221224592 3211300568 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 164558 135425 300 300 0 164258 0
vsize: 658232
[startup+100.002 s]
Raw data (loadavg): 1.02 1.00 0.92 2/55 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 247785 0 0 0 9517 483 0 0 25 0 1 0 749630865 707706880 155720 4294967295 134512640 135726644 3221224592 3211298480 134767123 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 172780 155720 300 300 0 172480 0
vsize: 691120
[startup+110.002 s]
Raw data (loadavg): 1.02 1.00 0.92 2/55 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 251323 0 0 0 10497 503 0 0 25 0 1 0 749630865 400269312 96675 4294967295 134512640 135726644 3221224592 3221222780 135277601 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97722 96675 300 300 0 97422 0
vsize: 390888
[startup+114.449 s]
Raw data (loadavg): 1.01 1.00 0.92 1/54 19364
Raw data (stat): 19364 (pb2sat) R 19363 8378 8377 0 -1 0 251323 0 0 0 10497 503 0 0 25 0 1 0 749630865 400269312 96675 4294967295 134512640 135726644 3221224592 3221222780 135277601 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97722 96675 300 300 0 97422 0
vsize: 0

Child status: 1
Real time (s): 114.449
CPU time (s): 114.447
CPU user time (s): 109.213
CPU system time (s): 5.2332
CPU usage (%): 99.998
Max. virtual memory (Kb): 691120
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####