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-scagr7.opb
MD5SUM884137728bf7ef59c1c9822643306b6c
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 3990
Biggest coefficient in the objective function 35540854374400
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 1307201212607598
Number of bits of the sum of numbers in the objective function 51
Biggest number in a constraint 35540854374400
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 1307201212607598
Number of bits of the biggest sum of numbers51
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.038993
Number of variables4200
Total number of constraints129
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 constraints129
Minimum length of a constraint30
Maximum length of a constraint300

Trace number 35083 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc20 THE 2005-05-28 12:11:47 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24390 boxname=wulflinc20 idbench=862 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  884137728bf7ef59c1c9822643306b6c  /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-scagr7.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc20/normalized-mps-v2-20-10-scagr7.opb
IDLAUNCH: 24390
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.215
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	: 3
cpu MHz		: 451.215
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	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        711064 kB
Buffers:         34004 kB
Cached:         266184 kB
SwapCached:        644 kB
Active:          41596 kB
Inactive:       260668 kB
HighTotal:      131008 kB
HighFree:        32956 kB
LowTotal:       903652 kB
LowFree:        678108 kB
SwapTotal:     2097892 kB
SwapFree:      2096312 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5104 kB
Slab:            15644 kB
Committed_AS:    63592 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-28 12:13:36 (client local time) WITH STATUS 1 IN 108.985 SECONDS
stats: 24390 7 108.985 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): 0.91 0.95 0.90 2/54 10300
Raw data (stat): 10300 (runsolver) R 10299 25399 25398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 864703780 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+10.0014 s]
Raw data (loadavg): 0.92 0.95 0.90 2/54 10300
Raw data (stat): 10300 (pb2sat) R 10299 25399 25398 0 -1 0 29931 0 0 0 934 65 0 0 25 0 1 0 864703780 91582464 18790 4294967295 134512640 135726644 3221224576 3219629352 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22359 18791 300 300 0 22059 0
vsize: 89436
[startup+20.0018 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 10300
Raw data (stat): 10300 (pb2sat) R 10299 25399 25398 0 -1 0 59131 0 0 0 1873 126 0 0 25 0 1 0 864703780 178892800 36766 4294967295 134512640 135726644 3221224576 3219652864 134767136 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43675 36767 300 300 0 43375 0
vsize: 174700
[startup+30.0015 s]
Raw data (loadavg): 0.94 0.95 0.91 2/54 10300
Raw data (stat): 10300 (pb2sat) R 10299 25399 25398 0 -1 0 98842 0 0 0 2795 204 0 0 25 0 1 0 864703780 299683840 54286 4294967295 134512640 135726644 3221224576 3219649752 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73165 54286 300 300 0 72865 0
vsize: 292660
[startup+40.0015 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 10300
Raw data (stat): 10300 (pb2sat) R 10299 25399 25398 0 -1 0 116318 0 0 0 3757 242 0 0 25 0 1 0 864703780 351485952 71524 4294967295 134512640 135726644 3221224576 3219658464 134767064 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85812 71524 300 300 0 85512 0
vsize: 343248
[startup+50.002 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 10300
Raw data (stat): 10300 (pb2sat) R 10299 25399 25398 0 -1 0 161442 0 0 0 4672 328 0 0 25 0 1 0 864703780 563036160 115444 4294967295 134512640 135726644 3221224576 3219733312 135280448 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137460 115444 300 300 0 137160 0
vsize: 549840
[startup+60.0027 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 10300
Raw data (stat): 10300 (pb2sat) R 10299 25399 25398 0 -1 0 196197 0 0 0 5592 408 0 0 25 0 1 0 864703780 596586496 107022 4294967295 134512640 135726644 3221224576 3219646928 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145651 107022 300 300 0 145351 0
vsize: 582604
[startup+70.0027 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 10300
Raw data (stat): 10300 (pb2sat) R 10299 25399 25398 0 -1 0 207961 0 0 0 6565 435 0 0 25 0 1 0 864703780 630140928 118577 4294967295 134512640 135726644 3221224576 3219638056 135280595 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153843 118577 300 300 0 153543 0
vsize: 615372
[startup+80.0021 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 10300
Raw data (stat): 10300 (pb2sat) R 10299 25399 25398 0 -1 0 228332 0 0 0 7523 477 0 0 25 0 1 0 864703780 658796544 138713 4294967295 134512640 135726644 3221224576 3219674952 135282354 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 160839 138714 300 300 0 160539 0
vsize: 643356
[startup+90.0019 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 10300
Raw data (stat): 10300 (pb2sat) R 10299 25399 25398 0 -1 0 246590 0 0 0 8490 510 0 0 25 0 1 0 864703780 735895552 156759 4294967295 134512640 135726644 3221224576 3219787600 134780454 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 179662 156759 300 300 0 179362 0
vsize: 718648
[startup+100.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 10300
Raw data (stat): 10300 (pb2sat) R 10299 25399 25398 0 -1 0 263660 0 0 0 9455 545 0 0 25 0 1 0 864703780 762363904 173627 4294967295 134512640 135726644 3221224576 3221222288 134541663 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186124 173627 300 300 0 185824 0
vsize: 744496
[startup+108.984 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 10300
Raw data (stat): 10300 (pb2sat) R 10299 25399 25398 0 -1 0 263660 0 0 0 9455 545 0 0 25 0 1 0 864703780 762363904 173627 4294967295 134512640 135726644 3221224576 3221222288 134541663 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 186124 173627 300 300 0 185824 0
vsize: 0

Child status: 1
Real time (s): 108.984
CPU time (s): 108.985
CPU user time (s): 103.176
CPU system time (s): 5.80912
CPU usage (%): 100.002
Max. virtual memory (Kb): 744496
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####