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-e226.opb
MD5SUM1016087327a6705b555fca4fd222545d
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 5160
Biggest coefficient in the objective function 1563169453506560
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 45878128722315351
Number of bits of the sum of numbers in the objective function 56
Biggest number in a constraint 1563169453506560
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 45878128722315351
Number of bits of the biggest sum of numbers56
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.075987
Number of variables8460
Total number of constraints223
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 constraints223
Minimum length of a constraint30
Maximum length of a constraint3210

Trace number 35041 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc8 THE 2005-05-28 12:04:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24354 boxname=wulflinc8 idbench=826 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  1016087327a6705b555fca4fd222545d  /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-e226.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc8/normalized-mps-v2-20-10-e226.opb
IDLAUNCH: 24354
/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:        696476 kB
Buffers:         37492 kB
Cached:         277812 kB
SwapCached:        896 kB
Active:          53392 kB
Inactive:       264248 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        696196 kB
SwapTotal:     2097136 kB
SwapFree:      2095540 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5196 kB
Slab:            14868 kB
Committed_AS:    63736 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:06:26 (client local time) WITH STATUS 1 IN 108.11 SECONDS
stats: 24354 7 108.11 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): 0.93 0.98 0.91 1/54 15834
Raw data (stat): 15834 (runsolver) D 15833 3132 3131 0 -1 64 8 0 0 0 0 0 0 0 18 0 1 0 792873699 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 3225161850 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): 0.94 0.98 0.91 2/54 15834
Raw data (stat): 15834 (pb2sat) R 15833 3132 3131 0 -1 0 29701 0 0 0 937 59 0 0 25 0 1 0 792873699 91385856 18565 4294967295 134512640 135726644 3221224592 3219186784 135105735 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22311 18565 300 300 0 22011 0
vsize: 89244
[startup+20.0014 s]
Raw data (loadavg): 0.95 0.98 0.91 2/54 15834
Raw data (stat): 15834 (pb2sat) R 15833 3132 3131 0 -1 0 59558 0 0 0 1875 121 0 0 25 0 1 0 792873699 179376128 37192 4294967295 134512640 135726644 3221224592 3219176568 134784091 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43793 37192 300 300 0 43493 0
vsize: 175172
[startup+30.0016 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 15834
Raw data (stat): 15834 (pb2sat) R 15833 3132 3131 0 -1 0 99864 0 0 0 2791 205 0 0 25 0 1 0 792873699 300572672 55295 4294967295 134512640 135726644 3221224592 3219201744 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 73382 55295 300 300 0 73082 0
vsize: 293528
[startup+40.0025 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 15834
Raw data (stat): 15834 (pb2sat) R 15833 3132 3131 0 -1 0 117726 0 0 0 3751 245 0 0 25 0 1 0 792873699 352915456 72920 4294967295 134512640 135726644 3221224592 3219185248 135297953 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 86161 72920 300 300 0 85861 0
vsize: 344644
[startup+50.0028 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 15834
Raw data (stat): 15834 (pb2sat) R 15833 3132 3131 0 -1 0 162277 0 0 0 4670 326 0 0 25 0 1 0 792873699 563920896 116278 4294967295 134512640 135726644 3221224592 3219178948 135101157 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 137676 116278 300 300 0 137376 0
vsize: 550704
[startup+60.0029 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 15834
Raw data (stat): 15834 (pb2sat) R 15833 3132 3131 0 -1 0 197908 0 0 0 5588 408 0 0 25 0 1 0 792873699 597471232 108720 4294967295 134512640 135726644 3221224592 3219170012 135298008 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145867 108720 300 300 0 145567 0
vsize: 583468
[startup+70.004 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 15834
Raw data (stat): 15834 (pb2sat) R 15833 3132 3131 0 -1 0 210762 0 0 0 6559 438 0 0 25 0 1 0 792873699 632918016 121351 4294967295 134512640 135726644 3221224592 3219214680 135281304 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 154521 121351 300 300 0 154221 0
vsize: 618084
[startup+80.0045 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 15834
Raw data (stat): 15834 (pb2sat) R 15833 3132 3131 0 -1 0 231916 0 0 0 7514 482 0 0 25 0 1 0 792873699 663752704 142260 4294967295 134512640 135726644 3221224592 3219223424 135280416 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 162049 142260 300 300 0 161749 0
vsize: 648196
[startup+90.0053 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 15836
Raw data (stat): 15834 (pb2sat) R 15833 3132 3131 0 -1 0 248675 0 0 0 8480 516 0 0 25 0 1 0 792873699 737873920 158827 4294967295 134512640 135726644 3221224592 3219213280 134766654 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 180145 158827 300 300 0 179845 0
vsize: 720580
[startup+100.006 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 15836
Raw data (stat): 15834 (pb2sat) R 15833 3132 3131 0 -1 0 264839 0 0 0 9443 552 0 0 25 0 1 0 792873699 761630720 174784 4294967295 134512640 135726644 3221224592 3221222708 134541622 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185945 174784 300 300 0 185645 0
vsize: 743780
[startup+108.152 s]
Raw data (loadavg): 0.99 0.98 0.91 1/53 15836
Raw data (stat): 15834 (pb2sat) R 15833 3132 3131 0 -1 0 264839 0 0 0 9443 552 0 0 25 0 1 0 792873699 761630720 174784 4294967295 134512640 135726644 3221224592 3221222708 134541622 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 185945 174784 300 300 0 185645 0
vsize: 0

Child status: 1
Real time (s): 108.151
CPU time (s): 108.11
CPU user time (s): 102.217
CPU system time (s): 5.8921
CPU usage (%): 99.9613
Max. virtual memory (Kb): 743780
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####