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/unibo/normalized-mps-v2-20-10-sp97ar.opb
MD5SUM978e3479aff123296d0a3461e698e01d
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 14101
Biggest coefficient in the objective function 292878668
Number of bits for the biggest coefficient in the objective function 29
Sum of the numbers in the objective function 975388850291
Number of bits of the sum of numbers in the objective function 40
Biggest number in a constraint 292878668
Number of bits of the biggest number in a constraint 29
Biggest sum of numbers in a constraint 975388850291
Number of bits of the biggest sum of numbers40
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark10.9513
Number of variables14101
Total number of constraints15862
Number of constraints which are clauses181
Number of constraints which are cardinality constraints (but not clauses)15263
Number of constraints which are nor clauses,nor cardinality constraints418
Minimum length of a constraint1
Maximum length of a constraint2463

Trace number 42651 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-06-16 13:25:45 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25872 boxname=wulflinc4 idbench=1172 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  978e3479aff123296d0a3461e698e01d  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-sp97ar.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-sp97ar.opb
IDLAUNCH: 25872
/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:        695828 kB
Buffers:         27832 kB
Cached:         288260 kB
SwapCached:        924 kB
Active:          32484 kB
Inactive:       285712 kB
HighTotal:      131008 kB
HighFree:         1120 kB
LowTotal:       903652 kB
LowFree:        694708 kB
SwapTotal:     2097136 kB
SwapFree:      2095228 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           4996 kB
Slab:            14784 kB
Committed_AS:    71892 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:27:45 (client local time) WITH STATUS 1 IN 119.43 SECONDS
stats: 25872 7 119.43 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified
c running zchaff...
c got solution with objective value: 25276099135
c big objective detected
c trying from 0 to 511

	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): 0.98 0.95 0.91 2/54 26530
Raw data (stat): 26530 (runsolver) R 26529 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 971098431 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+10.0012 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 11962 0 0 0 974 25 0 0 25 0 1 0 971098431 36552704 6428 4294967295 134512640 135730672 3221224576 3220808816 134546419 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 8924 6429 301 301 0 8623 0
vsize: 35696
[startup+20.002 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 33781 0 0 0 1924 76 0 0 25 0 1 0 971098431 124559360 22506 4294967295 134512640 135730672 3221224576 3220735152 134775344 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 30410 22508 301 301 0 30109 0
vsize: 121640
[startup+30.0018 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 52478 0 0 0 2877 122 0 0 25 0 1 0 971098431 154726400 30450 4294967295 134512640 135730672 3221224576 3221221664 134561656 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37775 30450 301 301 0 37474 0
vsize: 151100
[startup+40.0031 s]
Raw data (loadavg): 0.99 0.95 0.91 2/54 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 74133 0 0 0 3831 169 0 0 25 0 1 0 971098431 214573056 42758 4294967295 134512640 135730672 3221224576 3221221552 134539957 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 52386 42758 301 301 0 52085 0
vsize: 209544
[startup+50.0038 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 96970 0 0 0 4777 222 0 0 25 0 1 0 971098431 304422912 51702 4294967295 134512640 135730672 3221224576 3221223152 134741730 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74322 51702 301 301 0 74021 0
vsize: 297288
[startup+60.0045 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 112800 0 0 0 5737 263 0 0 25 0 1 0 971098431 336527360 67353 4294967295 134512640 135730672 3221224576 3215956736 134786209 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 82160 67353 301 301 0 81859 0
vsize: 328640
[startup+70.0049 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 151845 0 0 0 6665 335 0 0 25 0 1 0 971098431 465276928 87825 4294967295 134512640 135730672 3221224576 3219905376 134786278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 113593 87826 301 301 0 113292 0
vsize: 454372
[startup+80.0053 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 187236 0 0 0 7586 414 0 0 25 0 1 0 971098431 565940224 98403 4294967295 134512640 135730672 3221224576 3219123584 134546392 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 138169 98404 301 301 0 137868 0
vsize: 552676
[startup+90.0051 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 201214 0 0 0 8553 447 0 0 25 0 1 0 971098431 612876288 112150 4294967295 134512640 135730672 3221224576 3220617040 134785980 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 149628 112150 301 301 0 149327 0
vsize: 598512
[startup+100.005 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 220876 0 0 0 9514 486 0 0 25 0 1 0 971098431 645316608 131552 4294967295 134512640 135730672 3221224576 3214702128 134770759 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 157548 131553 301 301 0 157247 0
vsize: 630192
[startup+110.006 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 240430 0 0 0 10469 532 0 0 25 0 1 0 971098431 677216256 150853 4294967295 134512640 135730672 3221224576 3219089432 135291151 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165336 150853 301 301 0 165035 0
vsize: 661344
[startup+119.423 s]
Raw data (loadavg): 0.99 0.96 0.91 1/53 26530
Raw data (stat): 26530 (pb2sat-v2) R 26529 21152 21151 0 -1 0 240430 0 0 0 10469 532 0 0 25 0 1 0 971098431 677216256 150853 4294967295 134512640 135730672 3221224576 3219089432 135291151 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165336 150853 301 301 0 165035 0
vsize: 0

Child status: 1
Real time (s): 119.423
CPU time (s): 119.43
CPU user time (s): 113.771
CPU system time (s): 5.65914
CPU usage (%): 100.006
Max. virtual memory (Kb): 661344
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####