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/MIPLIB/miplib3/normalized-mps-v2-20-10-danoint.opb
MD5SUMcdd5642b047e784e87a00fe758efc418
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 30
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 13421772800
Number of bits of the biggest number in a constraint 34
Biggest sum of numbers in a constraint 53690300878
Number of bits of the biggest sum of numbers36
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.01085
Number of variables13898
Total number of constraints728
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)72
Number of constraints which are nor clauses,nor cardinality constraints656
Minimum length of a constraint1
Maximum length of a constraint1500

Trace number 42503

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 09:29:32 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25722 boxname=wulflinc6 idbench=1022 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  cdd5642b047e784e87a00fe758efc418  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-danoint.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-danoint.opb
IDLAUNCH: 25722
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        693880 kB
Buffers:         33624 kB
Cached:         284336 kB
SwapCached:       1028 kB
Active:          45664 kB
Inactive:       274500 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        693628 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            15036 kB
Committed_AS:    63844 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 09:31:10 (client local time) WITH STATUS 1 IN 97.5882 SECONDS
stats: 25722 7 97.5882 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 0.93 0.90 2/54 17594
Raw data (stat): 17594 (runsolver) R 17593 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969690133 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+10.0013 s]
Raw data (loadavg): 0.92 0.94 0.91 2/54 17594
Raw data (stat): 17594 (pb2sat-v2) R 17593 25568 25567 0 -1 0 28030 0 0 0 937 62 0 0 25 0 1 0 969690133 78512128 17063 4294967295 134512640 135730672 3221224576 3221201684 135109332 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 19168 17063 301 301 0 18867 0
vsize: 76672
[startup+20.0027 s]
Raw data (loadavg): 0.93 0.94 0.91 2/54 17594
Raw data (stat): 17594 (pb2sat-v2) R 17593 25568 25567 0 -1 0 55845 0 0 0 1872 127 0 0 25 0 1 0 969690133 154529792 33632 4294967295 134512640 135730672 3221224576 3221132204 134608033 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 37727 33632 301 301 0 37426 0
vsize: 150908
[startup+30.0043 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 17594
Raw data (stat): 17594 (pb2sat-v2) R 17593 25568 25567 0 -1 0 93781 0 0 0 2789 210 0 0 25 0 1 0 969690133 300425216 49878 4294967295 134512640 135730672 3221224576 3221141924 134607988 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 73346 49878 301 301 0 73045 0
vsize: 293384
[startup+40.0051 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 17594
Raw data (stat): 17594 (pb2sat-v2) R 17593 25568 25567 0 -1 0 111250 0 0 0 3746 253 0 0 25 0 1 0 969690133 307318784 67055 4294967295 134512640 135730672 3221224576 3221149840 134770721 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 75029 67055 301 301 0 74728 0
vsize: 300116
[startup+50.0059 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 17594
Raw data (stat): 17594 (pb2sat-v2) R 17593 25568 25567 0 -1 0 174804 0 0 0 4625 374 0 0 25 0 1 0 969690133 641171456 112056 4294967295 134512640 135730672 3221224576 3220826560 134788635 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 156536 112056 301 301 0 156235 0
vsize: 626144
[startup+60.0067 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 17594
Raw data (stat): 17594 (pb2sat-v2) R 17593 25568 25567 0 -1 0 187694 0 0 0 5591 409 0 0 25 0 1 0 969690133 574058496 100141 4294967295 134512640 135730672 3221224576 3220609408 134775105 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 140151 100141 301 301 0 139850 0
vsize: 560604
[startup+70.008 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 17594
Raw data (stat): 17594 (pb2sat-v2) R 17593 25568 25567 0 -1 0 202354 0 0 0 6557 442 0 0 25 0 1 0 969690133 574058496 114542 4294967295 134512640 135730672 3221224576 3220571784 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140151 114543 301 301 0 139850 0
vsize: 560604
[startup+80.0084 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 17594
Raw data (stat): 17594 (pb2sat-v2) R 17593 25568 25567 0 -1 0 217777 0 0 0 7523 477 0 0 25 0 1 0 969690133 628039680 129709 4294967295 134512640 135730672 3221224576 3221158528 134783984 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153330 129709 301 301 0 153029 0
vsize: 613320
[startup+90.0092 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 17594
Raw data (stat): 17594 (pb2sat-v2) R 17593 25568 25567 0 -1 0 232789 0 0 0 8487 514 0 0 25 0 1 0 969690133 639799296 144507 4294967295 134512640 135730672 3221224576 3220769856 134770759 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156201 144507 301 301 0 155900 0
vsize: 624804
[startup+97.5869 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 17594
Raw data (stat): 17594 (pb2sat-v2) R 17593 25568 25567 0 -1 0 232789 0 0 0 8487 514 0 0 25 0 1 0 969690133 639799296 144507 4294967295 134512640 135730672 3221224576 3220769856 134770759 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156201 144507 301 301 0 155900 0
vsize: 0

Child status: 1
Real time (s): 97.5864
CPU time (s): 97.5882
CPU user time (s): 91.899
CPU system time (s): 5.68913
CPU usage (%): 100.002
Max. virtual memory (Kb): 626144
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####