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-v2-20-10-25fv47.opb
MD5SUM5984c30bfc33b34af2fab73888f86cf2
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 19170
Biggest coefficient in the objective function 536870912000000
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 10623608039212938
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 128285302811787264
Number of bits of the biggest number in a constraint 57
Biggest sum of numbers in a constraint 812950436219668362
Number of bits of the biggest sum of numbers60
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.405937
Number of variables47130
Total number of constraints820
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 constraints820
Minimum length of a constraint30
Maximum length of a constraint10200

Trace number 35019 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc13 THE 2005-05-28 12:00:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24330 boxname=wulflinc13 idbench=802 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  5984c30bfc33b34af2fab73888f86cf2  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-25fv47.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-25fv47.opb
IDLAUNCH: 24330
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
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		: 451.242
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        745156 kB
Buffers:         35952 kB
Cached:         232032 kB
SwapCached:        548 kB
Active:          29384 kB
Inactive:       240660 kB
HighTotal:      131008 kB
HighFree:        49224 kB
LowTotal:       903652 kB
LowFree:        695932 kB
SwapTotal:     2097136 kB
SwapFree:      2095648 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5140 kB
Slab:            13552 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:01:55 (client local time) WITH STATUS 1 IN 113.684 SECONDS
stats: 24330 7 113.684 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): 0.91 0.94 0.90 1/54 6215
Raw data (stat): 6215 (runsolver) R 6214 1269 1268 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806418783 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): 1.00 0.96 0.91 2/54 6268
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 12534 0 0 0 967 32 0 0 25 0 1 0 806418783 42070016 8570 4294967295 134512640 135726644 3221224576 3213545736 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 10271 8570 300 300 0 9971 0
vsize: 41084
[startup+20.0007 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 6268
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 43216 0 0 0 1900 99 0 0 25 0 1 0 806418783 132927488 27125 4294967295 134512640 135726644 3221224576 3213590952 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 32453 27125 300 300 0 32153 0
vsize: 129812
[startup+30.0007 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 6268
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 79657 0 0 0 2824 175 0 0 25 0 1 0 806418783 288219136 56702 4294967295 134512640 135726644 3221224576 3213581360 134772474 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 70366 56702 300 300 0 70066 0
vsize: 281464
[startup+40.002 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 6268
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 104739 0 0 0 3769 230 0 0 25 0 1 0 806418783 343007232 60064 4294967295 134512640 135726644 3221224576 3213642400 135284751 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 83742 60065 300 300 0 83442 0
vsize: 334968
[startup+50.0026 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 6268
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 126861 0 0 0 4726 274 0 0 25 0 1 0 806418783 376832000 81923 4294967295 134512640 135726644 3221224576 3213634592 134784433 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 92000 81923 300 300 0 91700 0
vsize: 368000
[startup+60.0023 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 6268
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 164827 0 0 0 5653 347 0 0 25 0 1 0 806418783 499662848 100306 4294967295 134512640 135726644 3221224576 3213563640 135297949 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 121988 100307 300 300 0 121688 0
vsize: 487952
[startup+70.003 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 6268
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 200608 0 0 0 6580 421 0 0 25 0 1 0 806418783 600326144 111313 4294967295 134512640 135726644 3221224576 3213557752 134783933 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 146564 111313 300 300 0 146264 0
vsize: 586256
[startup+80.0036 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 6270
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 217716 0 0 0 7540 461 0 0 25 0 1 0 806418783 654295040 128183 4294967295 134512640 135726644 3221224576 3213652464 134767049 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159740 128184 300 300 0 159440 0
vsize: 638960
[startup+90.0047 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 6270
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 238850 0 0 0 8498 503 0 0 25 0 1 0 806418783 686628864 149072 4294967295 134512640 135726644 3221224576 3213602880 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 167634 149073 300 300 0 167334 0
vsize: 670536
[startup+100.005 s]
Raw data (loadavg): 1.00 0.96 0.91 2/54 6270
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 256842 0 0 0 9456 545 0 0 25 0 1 0 806418783 763588608 166847 4294967295 134512640 135726644 3221224576 3213846000 134780450 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186423 166847 300 300 0 186123 0
vsize: 745692
[startup+110.006 s]
Raw data (loadavg): 1.00 0.97 0.91 2/54 6270
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 259848 0 0 0 10435 565 0 0 25 0 1 0 806418783 408117248 99185 4294967295 134512640 135726644 3221224576 3221222764 135277617 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 99638 99185 300 300 0 99338 0
vsize: 398552
[startup+113.676 s]
Raw data (loadavg): 1.00 0.97 0.91 1/53 6270
Raw data (stat): 6215 (pb2sat) R 6214 1269 1268 0 -1 0 259848 0 0 0 10435 565 0 0 25 0 1 0 806418783 408117248 99185 4294967295 134512640 135726644 3221224576 3221222764 135277617 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 99638 99185 300 300 0 99338 0
vsize: 0

Child status: 1
Real time (s): 113.675
CPU time (s): 113.684
CPU user time (s): 107.817
CPU system time (s): 5.86711
CPU usage (%): 100.007
Max. virtual memory (Kb): 745692
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####