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/plato.asu.edu/pub/fctp/normalized-mps-v2-20-10-ran17x17.opb
MD5SUMa15c04744ea6af8a8a8518cde7c56bce
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 5298760
Optimality of the best value was proved NO
Number of terms in the objective function 8959
Biggest coefficient in the objective function 5368709120
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 1612776422946
Number of bits of the sum of numbers in the objective function 41
Biggest number in a constraint 5368709120
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 1612776422946
Number of bits of the biggest sum of numbers41
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1218.22
Number of variables8959
Total number of constraints323
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 constraints323
Minimum length of a constraint31
Maximum length of a constraint510

Trace number 35315

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-05-28 12:53:20 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24631 boxname=wulflinc5 idbench=1103 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  a15c04744ea6af8a8a8518cde7c56bce  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-ran17x17.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-ran17x17.opb
IDLAUNCH: 24631
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        710432 kB
Buffers:         34104 kB
Cached:         265508 kB
SwapCached:        608 kB
Active:          15568 kB
Inactive:       286080 kB
HighTotal:      131008 kB
HighFree:        54796 kB
LowTotal:       903652 kB
LowFree:        655636 kB
SwapTotal:     2097136 kB
SwapFree:      2095612 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           5132 kB
Slab:            16976 kB
Committed_AS:    63592 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:55:03 (client local time) WITH STATUS 1 IN 103.267 SECONDS
stats: 24631 7 103.267 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): 0.84 0.94 0.90 2/54 19833
Raw data (stat): 19833 (runsolver) R 19832 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806731961 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+9.99976 s]
Raw data (loadavg): 0.87 0.94 0.90 2/54 19833
Raw data (stat): 19833 (pb2sat) R 19832 7266 7265 0 -1 0 28023 0 0 0 938 60 0 0 25 0 1 0 806731961 90374144 16912 4294967295 134512640 135726644 3221224576 3217907600 135101187 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22064 16913 300 300 0 21764 0
vsize: 88256
[startup+20.0009 s]
Raw data (loadavg): 0.89 0.94 0.90 2/54 19833
Raw data (stat): 19833 (pb2sat) R 19832 7266 7265 0 -1 0 57932 0 0 0 1877 122 0 0 25 0 1 0 806731961 177954816 35593 4294967295 134512640 135726644 3221224576 3218090552 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43446 35593 300 300 0 43146 0
vsize: 173784
[startup+30.0016 s]
Raw data (loadavg): 0.90 0.94 0.90 2/54 19833
Raw data (stat): 19833 (pb2sat) R 19832 7266 7265 0 -1 0 99655 0 0 0 2792 207 0 0 25 0 1 0 806731961 303611904 55113 4294967295 134512640 135726644 3221224576 3218456552 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74124 55114 300 300 0 73824 0
vsize: 296496
[startup+40.002 s]
Raw data (loadavg): 0.92 0.94 0.90 2/54 19833
Raw data (stat): 19833 (pb2sat) R 19832 7266 7265 0 -1 0 116935 0 0 0 3754 245 0 0 25 0 1 0 806731961 351899648 72152 4294967295 134512640 135726644 3221224576 3217969808 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85913 72153 300 300 0 85613 0
vsize: 343652
[startup+50.0031 s]
Raw data (loadavg): 0.93 0.94 0.90 2/54 19833
Raw data (stat): 19833 (pb2sat) R 19832 7266 7265 0 -1 0 160707 0 0 0 4675 324 0 0 25 0 1 0 806731961 562364416 114827 4294967295 134512640 135726644 3221224576 3218099360 134771928 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137296 114830 300 300 0 136996 0
vsize: 549184
[startup+60.0029 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 19833
Raw data (stat): 19833 (pb2sat) R 19832 7266 7265 0 -1 0 199339 0 0 0 5590 410 0 0 25 0 1 0 806731961 635146240 110162 4294967295 134512640 135726644 3221224576 3217844000 134780348 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155065 110162 300 300 0 154765 0
vsize: 620260
[startup+70.0032 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 19833
Raw data (stat): 19833 (pb2sat) R 19832 7266 7265 0 -1 0 212384 0 0 0 6563 437 0 0 25 0 1 0 806731961 635146240 122978 4294967295 134512640 135726644 3221224576 3217880016 134766470 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155065 122979 300 300 0 154765 0
vsize: 620260
[startup+80.0033 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 19833
Raw data (stat): 19833 (pb2sat) R 19832 7266 7265 0 -1 0 233582 0 0 0 7519 481 0 0 25 0 1 0 806731961 664477696 143930 4294967295 134512640 135726644 3221224576 3217976056 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162226 143931 300 300 0 161926 0
vsize: 648904
[startup+90.004 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 19833
Raw data (stat): 19833 (pb2sat) R 19832 7266 7265 0 -1 0 251133 0 0 0 8485 516 0 0 25 0 1 0 806731961 739815424 161279 4294967295 134512640 135726644 3221224576 3217918492 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 180619 161281 300 300 0 180319 0
vsize: 722476
[startup+100.004 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 19833
Raw data (stat): 19833 (pb2sat) R 19832 7266 7265 0 -1 0 266871 0 0 0 9453 548 0 0 25 0 1 0 806731961 762765312 176801 4294967295 134512640 135726644 3221224576 3221222896 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186222 176801 300 300 0 185922 0
vsize: 744888
[startup+103.261 s]
Raw data (loadavg): 0.97 0.95 0.91 1/53 19833
Raw data (stat): 19833 (pb2sat) R 19832 7266 7265 0 -1 0 266871 0 0 0 9453 548 0 0 25 0 1 0 806731961 762765312 176801 4294967295 134512640 135726644 3221224576 3221222896 135280446 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 186222 176801 300 300 0 185922 0
vsize: 0

Child status: 1
Real time (s): 103.26
CPU time (s): 103.267
CPU user time (s): 97.4272
CPU system time (s): 5.84011
CPU usage (%): 100.007
Max. virtual memory (Kb): 744888
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####