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-cycle.opb
MD5SUMe48dda95f8e39d614f3e3f822031bbe2
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 9240
Biggest coefficient in the objective function 53687091200000
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 1737924154969464
Number of bits of the sum of numbers in the objective function 51
Biggest number in a constraint 48888431614361600
Number of bits of the biggest number in a constraint 56
Biggest sum of numbers in a constraint 779202693141814557
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 benchmark0.763883
Number of variables84737
Total number of constraints1961
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 constraints1961
Minimum length of a constraint11
Maximum length of a constraint1470

Trace number 35039 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc24 THE 2005-05-28 12:03:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24347 boxname=wulflinc24 idbench=819 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  e48dda95f8e39d614f3e3f822031bbe2  /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-cycle.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc24/normalized-mps-v2-20-10-cycle.opb
IDLAUNCH: 24347
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.080
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	: 3
cpu MHz		: 451.080
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:        696072 kB
Buffers:         36184 kB
Cached:         279652 kB
SwapCached:        636 kB
Active:          40320 kB
Inactive:       277632 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        695820 kB
SwapTotal:     2097892 kB
SwapFree:      2096360 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5148 kB
Slab:            14908 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:05:08 (client local time) WITH STATUS 1 IN 109.93 SECONDS
stats: 24347 7 109.93 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): 0.85 0.93 0.90 2/54 19916
Raw data (stat): 19916 (runsolver) R 19915 4613 4612 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864651018 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+10.0015 s]
Raw data (loadavg): 0.87 0.93 0.90 2/54 19916
Raw data (stat): 19916 (pb2sat) R 19915 4613 4612 0 -1 0 27093 0 0 0 938 61 0 0 25 0 1 0 864651018 90013696 15983 4294967295 134512640 135726644 3221224576 3217533996 135297967 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21976 15983 300 300 0 21676 0
vsize: 87904
[startup+20.0022 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 19916
Raw data (stat): 19916 (pb2sat) R 19915 4613 4612 0 -1 0 56364 0 0 0 1880 119 0 0 25 0 1 0 864651018 178003968 34022 4294967295 134512640 135726644 3221224576 3217565456 134558385 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43458 34024 300 300 0 43158 0
vsize: 173832
[startup+30.0017 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 19916
Raw data (stat): 19916 (pb2sat) R 19915 4613 4612 0 -1 0 95684 0 0 0 2801 198 0 0 25 0 1 0 864651018 350617600 63421 4294967295 134512640 135726644 3221224576 3217538192 134784885 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85600 63425 300 300 0 85300 0
vsize: 342400
[startup+40.0023 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 19916
Raw data (stat): 19916 (pb2sat) R 19915 4613 4612 0 -1 0 113795 0 0 0 3761 238 0 0 25 0 1 0 864651018 352636928 68998 4294967295 134512640 135726644 3221224576 3217542864 134767085 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86093 68998 300 300 0 85793 0
vsize: 344372
[startup+50.0039 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 19916
Raw data (stat): 19916 (pb2sat) R 19915 4613 4612 0 -1 0 155909 0 0 0 4683 317 0 0 25 0 1 0 864651018 558395392 109991 4294967295 134512640 135726644 3221224576 3217595560 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 136327 109992 300 300 0 136027 0
vsize: 545308
[startup+60.0047 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 19916
Raw data (stat): 19916 (pb2sat) R 19915 4613 4612 0 -1 0 191777 0 0 0 5605 395 0 0 25 0 1 0 864651018 594784256 102623 4294967295 134512640 135726644 3221224576 3217629792 134784471 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145211 102624 300 300 0 144911 0
vsize: 580844
[startup+70.0044 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 19916
Raw data (stat): 19916 (pb2sat) R 19915 4613 4612 0 -1 0 203364 0 0 0 6579 422 0 0 25 0 1 0 864651018 628338688 113989 4294967295 134512640 135726644 3221224576 3217539960 135278569 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153403 113989 300 300 0 153103 0
vsize: 613612
[startup+80.0146 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 19916
Raw data (stat): 19916 (pb2sat) R 19915 4613 4612 0 -1 0 224624 0 0 0 7533 468 0 0 25 0 1 0 864651018 660967424 134993 4294967295 134512640 135726644 3221224576 3217701752 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161369 134994 300 300 0 161069 0
vsize: 645476
[startup+90.0148 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 19916
Raw data (stat): 19916 (pb2sat) R 19915 4613 4612 0 -1 0 245263 0 0 0 8493 509 0 0 25 0 1 0 864651018 692330496 155389 4294967295 134512640 135726644 3221224576 3217534952 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 169026 155389 300 300 0 168726 0
vsize: 676104
[startup+100.015 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 19916
Raw data (stat): 19916 (pb2sat) R 19915 4613 4612 0 -1 0 258538 0 0 0 9466 536 0 0 25 0 1 0 864651018 763727872 168468 4294967295 134512640 135726644 3221224576 3221222416 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186457 168468 300 300 0 186157 0
vsize: 745828
[startup+109.936 s]
Raw data (loadavg): 0.97 0.95 0.91 1/53 19916
Raw data (stat): 19916 (pb2sat) R 19915 4613 4612 0 -1 0 258538 0 0 0 9466 536 0 0 25 0 1 0 864651018 763727872 168468 4294967295 134512640 135726644 3221224576 3221222416 135279084 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186457 168468 300 300 0 186157 0
vsize: 0

Child status: 1
Real time (s): 109.936
CPU time (s): 109.93
CPU user time (s): 104.223
CPU system time (s): 5.70713
CPU usage (%): 99.9952
Max. virtual memory (Kb): 745828
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####