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-recipe.opb
MD5SUM3ed8b1557bef6552695b255ca35679eb
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -79735161
Optimality of the best value was proved NO
Number of terms in the objective function 1055
Biggest coefficient in the objective function 65536000
Number of bits for the biggest coefficient in the objective function 26
Sum of the numbers in the objective function 584330055
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 5681631310381056
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 98271137637301167
Number of bits of the biggest sum of numbers57
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1233.91
Number of variables3671
Total number of constraints159
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 constraints159
Minimum length of a constraint10
Maximum length of a constraint420

Trace number 35078

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-05-28 12:10:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24384 boxname=wulflinc10 idbench=856 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  3ed8b1557bef6552695b255ca35679eb  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-recipe.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-recipe.opb
IDLAUNCH: 24384
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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		: 450.999
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:        834680 kB
Buffers:         34644 kB
Cached:         143908 kB
SwapCached:         84 kB
Active:          74648 kB
Inactive:       106592 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        834428 kB
SwapTotal:     2097136 kB
SwapFree:      2096728 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5880 kB
Slab:            13048 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:12:30 (client local time) WITH STATUS 1 IN 97.1882 SECONDS
stats: 24384 7 97.1882 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): 0.83 0.92 0.90 2/54 22503
Raw data (stat): 22503 (runsolver) R 22502 15547 15546 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806491021 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+10.0004 s]
Raw data (loadavg): 0.85 0.92 0.90 2/54 22503
Raw data (stat): 22503 (pb2sat) R 22502 15547 15546 0 -1 0 31570 0 0 0 927 71 0 0 25 0 1 0 806491021 91860992 20414 4294967295 134512640 135726644 3221224576 3220966112 135278614 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22427 20414 300 300 0 22127 0
vsize: 89708
[startup+20.0004 s]
Raw data (loadavg): 0.88 0.93 0.90 2/54 22503
Raw data (stat): 22503 (pb2sat) R 22502 15547 15546 0 -1 0 62484 0 0 0 1861 138 0 0 25 0 1 0 806491021 180928512 40088 4294967295 134512640 135726644 3221224576 3220991240 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 44172 40089 300 300 0 43872 0
vsize: 176688
[startup+29.9999 s]
Raw data (loadavg): 0.89 0.93 0.90 2/54 22503
Raw data (stat): 22503 (pb2sat) R 22502 15547 15546 0 -1 0 102121 0 0 0 2782 216 0 0 25 0 1 0 806491021 332976128 57526 4294967295 134512640 135726644 3221224576 3220987628 135298010 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81293 57526 300 300 0 80993 0
vsize: 325172
[startup+39.9998 s]
Raw data (loadavg): 0.91 0.93 0.90 2/54 22503
Raw data (stat): 22503 (pb2sat) R 22502 15547 15546 0 -1 0 123290 0 0 0 3741 258 0 0 25 0 1 0 806491021 357576704 78428 4294967295 134512640 135726644 3221224576 3221038152 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 87299 78430 300 300 0 86999 0
vsize: 349196
[startup+50.0001 s]
Raw data (loadavg): 0.92 0.93 0.90 2/54 22503
Raw data (stat): 22503 (pb2sat) R 22502 15547 15546 0 -1 0 183940 0 0 0 4629 369 0 0 25 0 1 0 806491021 697798656 119499 4294967295 134512640 135726644 3221224576 3221011792 134784885 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 170361 119503 300 300 0 170061 0
vsize: 681444
[startup+59.9996 s]
Raw data (loadavg): 0.93 0.93 0.90 2/54 22503
Raw data (stat): 22503 (pb2sat) R 22502 15547 15546 0 -1 0 202397 0 0 0 5590 409 0 0 25 0 1 0 806491021 630685696 113155 4294967295 134512640 135726644 3221224576 3221034464 134739449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 153976 113156 300 300 0 153676 0
vsize: 615904
[startup+70.0005 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 22503
Raw data (stat): 22503 (pb2sat) R 22502 15547 15546 0 -1 0 220223 0 0 0 6557 442 0 0 25 0 1 0 806491021 642174976 130717 4294967295 134512640 135726644 3221224576 3221028552 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156781 130718 300 300 0 156481 0
vsize: 627124
[startup+80.0008 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 22503
Raw data (stat): 22503 (pb2sat) R 22502 15547 15546 0 -1 0 241850 0 0 0 7512 488 0 0 25 0 1 0 806491021 723189760 152095 4294967295 134512640 135726644 3221224576 3221067600 134780362 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 176560 152095 300 300 0 176260 0
vsize: 706240
[startup+90.0003 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 22503
Raw data (stat): 22503 (pb2sat) R 22502 15547 15546 0 -1 0 261610 0 0 0 8472 528 0 0 25 0 1 0 806491021 751169536 171628 4294967295 134512640 135726644 3221224576 3221056552 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183391 171628 300 300 0 183091 0
vsize: 733564
[startup+97.1875 s]
Raw data (loadavg): 0.96 0.94 0.91 1/53 22503
Raw data (stat): 22503 (pb2sat) R 22502 15547 15546 0 -1 0 261610 0 0 0 8472 528 0 0 25 0 1 0 806491021 751169536 171628 4294967295 134512640 135726644 3221224576 3221056552 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183391 171628 300 300 0 183091 0
vsize: 0

Child status: 1
Real time (s): 97.187
CPU time (s): 97.1882
CPU user time (s): 91.4441
CPU system time (s): 5.74413
CPU usage (%): 100.001
Max. virtual memory (Kb): 733564
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####