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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-degen2.opb
MD5SUM30256c883dd8af773c334a2b26410bd9
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 9400
Biggest coefficient in the objective function 2494038016
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 391862963250
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 2494038016
Number of bits of the biggest number in a constraint 32
Biggest sum of numbers in a constraint 391862963250
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.092985
Number of variables10680
Total number of constraints444
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 constraints444
Minimum length of a constraint40
Maximum length of a constraint1700

Trace number 35425 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-05-28 13:10:01 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24735 boxname=wulflinc4 idbench=1207 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  30256c883dd8af773c334a2b26410bd9  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-degen2.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-13-7-degen2.opb
IDLAUNCH: 24735
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        743312 kB
Buffers:         33948 kB
Cached:         236392 kB
SwapCached:        640 kB
Active:          29292 kB
Inactive:       243216 kB
HighTotal:      131008 kB
HighFree:        14644 kB
LowTotal:       903652 kB
LowFree:        728668 kB
SwapTotal:     2097136 kB
SwapFree:      2095656 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5304 kB
Slab:            13036 kB
Committed_AS:    71784 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:11:48 (client local time) WITH STATUS 1 IN 106.572 SECONDS
stats: 24735 7 106.572 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): 0.93 0.96 0.91 2/54 30716
Raw data (stat): 30716 (runsolver) R 30715 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806823556 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+10.0007 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 30716
Raw data (stat): 30716 (pb2sat) R 30715 21152 21151 0 -1 0 27629 0 0 0 938 60 0 0 25 0 1 0 806823556 91308032 16508 4294967295 134512640 135726644 3221224592 3217900880 134767085 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22292 16508 300 300 0 21992 0
vsize: 89168
[startup+20.0005 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 30716
Raw data (stat): 30716 (pb2sat) R 30715 21152 21151 0 -1 0 57494 0 0 0 1874 125 0 0 25 0 1 0 806823556 180510720 35130 4294967295 134512640 135726644 3221224592 3217601308 134604415 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 44070 35130 300 300 0 43770 0
vsize: 176280
[startup+30.0014 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 30716
Raw data (stat): 30716 (pb2sat) R 30715 21152 21151 0 -1 0 97058 0 0 0 2799 200 0 0 25 0 1 0 806823556 299003904 52482 4294967295 134512640 135726644 3221224592 3217531696 134782666 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72999 52483 300 300 0 72699 0
vsize: 291996
[startup+40.0019 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 30716
Raw data (stat): 30716 (pb2sat) R 30715 21152 21151 0 -1 0 116709 0 0 0 3759 240 0 0 25 0 1 0 806823556 357834752 71879 4294967295 134512640 135726644 3221224592 3217667568 134784766 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 87362 71879 300 300 0 87062 0
vsize: 349448
[startup+50.0058 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 30716
Raw data (stat): 30716 (pb2sat) R 30715 21152 21151 0 -1 0 157616 0 0 0 4685 315 0 0 25 0 1 0 806823556 489693184 94209 4294967295 134512640 135726644 3221224592 3217773032 135281200 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 119554 94209 300 300 0 119254 0
vsize: 478216
[startup+60.0057 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 30716
Raw data (stat): 30716 (pb2sat) R 30715 21152 21151 0 -1 0 194844 0 0 0 5608 392 0 0 25 0 1 0 806823556 594550784 105620 4294967295 134512640 135726644 3221224592 3217547696 134782705 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145154 105620 300 300 0 144854 0
vsize: 580616
[startup+70.0056 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 30716
Raw data (stat): 30716 (pb2sat) R 30715 21152 21151 0 -1 0 209099 0 0 0 6577 423 0 0 25 0 1 0 806823556 637837312 119661 4294967295 134512640 135726644 3221224592 3217657336 134554775 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155722 119661 300 300 0 155422 0
vsize: 622888
[startup+80.0094 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 30716
Raw data (stat): 30716 (pb2sat) R 30715 21152 21151 0 -1 0 230403 0 0 0 7533 467 0 0 25 0 1 0 806823556 669601792 140726 4294967295 134512640 135726644 3221224592 3217578236 134604412 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163477 140726 300 300 0 163177 0
vsize: 653908
[startup+90.0093 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 30716
Raw data (stat): 30716 (pb2sat) R 30715 21152 21151 0 -1 0 251466 0 0 0 8494 507 0 0 25 0 1 0 806823556 699473920 161548 4294967295 134512640 135726644 3221224592 3217512480 134767123 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 170770 161548 300 300 0 170470 0
vsize: 683080
[startup+100.076 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 30716
Raw data (stat): 30716 (pb2sat) R 30715 21152 21151 0 -1 0 260532 0 0 0 9466 541 0 0 25 0 1 0 806823556 404058112 98213 4294967295 134512640 135726644 3221224592 3221222932 135341057 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98647 98213 300 300 0 98347 0
vsize: 394588
[startup+106.566 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 30716
Raw data (stat): 30716 (pb2sat) R 30715 21152 21151 0 -1 0 260532 0 0 0 9466 541 0 0 25 0 1 0 806823556 404058112 98213 4294967295 134512640 135726644 3221224592 3221222932 135341057 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98647 98213 300 300 0 98347 0
vsize: 0

Child status: 1
Real time (s): 106.566
CPU time (s): 106.572
CPU user time (s): 100.952
CPU system time (s): 5.62015
CPU usage (%): 100.005
Max. virtual memory (Kb): 683080
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####