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-v2-13-7/plato.asu.edu/pub/milp/normalized-mps-v2-13-7-dano3_4.opb
MD5SUM53ae35dd3424f79abe62dc18aab624bf
Bench Categoryoptimization, medium integers (OPTMEDINT)
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 20
Biggest coefficient in the objective function 524288
Number of bits for the biggest coefficient in the objective function 20
Sum of the numbers in the objective function 1048575
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 131072000
Number of bits of the biggest number in a constraint 27
Biggest sum of numbers in a constraint 576307709
Number of bits of the biggest sum of numbers30
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark35.0387
Number of variables270144
Total number of constraints3778
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)96
Number of constraints which are nor clauses,nor cardinality constraints3682
Minimum length of a constraint1
Maximum length of a constraint10600

Trace number 42978 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 20:16:38 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=26197 boxname=wulflinc5 idbench=1497 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  53ae35dd3424f79abe62dc18aab624bf  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-dano3_4.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-13-7-dano3_4.opb
IDLAUNCH: 26197
/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:        631128 kB
Buffers:         28048 kB
Cached:         351888 kB
SwapCached:        660 kB
Active:          54628 kB
Inactive:       327376 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        630876 kB
SwapTotal:     2097136 kB
SwapFree:      2095536 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15920 kB
Committed_AS:    63716 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 20:18:17 (client local time) WITH STATUS 1 IN 98.1761 SECONDS
stats: 26197 7 98.1761 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 2/54 19547
Raw data (stat): 19547 (runsolver) R 19546 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 973574277 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+10.0011 s]
Raw data (loadavg): 0.94 0.98 0.91 2/54 19547
Raw data (stat): 19547 (pb2sat-v2) R 19546 7266 7265 0 -1 0 25553 0 0 0 942 57 0 0 25 0 1 0 973574277 78897152 14603 4294967295 134512640 135730672 3221224576 3220962768 134770049 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 19262 14603 301 301 0 18961 0
vsize: 77048
[startup+20.0018 s]
Raw data (loadavg): 0.95 0.98 0.91 2/54 19547
Raw data (stat): 19547 (pb2sat-v2) R 19546 7266 7265 0 -1 0 52385 0 0 0 1882 117 0 0 25 0 1 0 973574277 152887296 30203 4294967295 134512640 135730672 3221224576 3221043948 135301642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 37326 30203 301 301 0 37025 0
vsize: 149304
[startup+30.0026 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 19547
Raw data (stat): 19547 (pb2sat-v2) R 19546 7266 7265 0 -1 0 91786 0 0 0 2805 194 0 0 25 0 1 0 973574277 303108096 47910 4294967295 134512640 135730672 3221224576 3220832368 134783984 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74001 47910 301 301 0 73700 0
vsize: 296004
[startup+40.0033 s]
Raw data (loadavg): 0.96 0.98 0.91 2/54 19547
Raw data (stat): 19547 (pb2sat-v2) R 19546 7266 7265 0 -1 0 106319 0 0 0 3771 228 0 0 25 0 1 0 973574277 304459776 62188 4294967295 134512640 135730672 3221224576 3221143292 135291077 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74331 62188 301 301 0 74030 0
vsize: 297324
[startup+50.005 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 19547
Raw data (stat): 19547 (pb2sat-v2) R 19546 7266 7265 0 -1 0 148202 0 0 0 4692 307 0 0 25 0 1 0 973574277 505192448 102879 4294967295 134512640 135730672 3221224576 3220821872 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 123338 102879 301 301 0 123037 0
vsize: 493352
[startup+60.0058 s]
Raw data (loadavg): 0.97 0.98 0.91 2/54 19547
Raw data (stat): 19547 (pb2sat-v2) R 19546 7266 7265 0 -1 0 183811 0 0 0 5612 387 0 0 25 0 1 0 973574277 576495616 96325 4294967295 134512640 135730672 3221224576 3220952240 134611014 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140746 96325 301 301 0 140445 0
vsize: 562984
[startup+70.0055 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 19547
Raw data (stat): 19547 (pb2sat-v2) R 19546 7266 7265 0 -1 0 199076 0 0 0 6576 423 0 0 25 0 1 0 973574277 576495616 111320 4294967295 134512640 135730672 3221224576 3220995232 135109333 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140746 111320 301 301 0 140445 0
vsize: 562984
[startup+80.0063 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 19547
Raw data (stat): 19547 (pb2sat-v2) R 19546 7266 7265 0 -1 0 214300 0 0 0 7541 458 0 0 25 0 1 0 973574277 576495616 126275 4294967295 134512640 135730672 3221224576 3221093632 134787120 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 140746 126275 301 301 0 140445 0
vsize: 562984
[startup+90.007 s]
Raw data (loadavg): 0.98 0.98 0.91 2/54 19547
Raw data (stat): 19547 (pb2sat-v2) R 19546 7266 7265 0 -1 0 228650 0 0 0 8507 493 0 0 25 0 1 0 973574277 636018688 140411 4294967295 134512640 135730672 3221224576 3221047928 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155278 140411 301 301 0 154977 0
vsize: 621112
[startup+98.1856 s]
Raw data (loadavg): 0.98 0.98 0.91 1/53 19547
Raw data (stat): 19547 (pb2sat-v2) R 19546 7266 7265 0 -1 0 228650 0 0 0 8507 493 0 0 25 0 1 0 973574277 636018688 140411 4294967295 134512640 135730672 3221224576 3221047928 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155278 140411 301 301 0 154977 0
vsize: 0

Child status: 1
Real time (s): 98.1852
CPU time (s): 98.1761
CPU user time (s): 92.5979
CPU system time (s): 5.57815
CPU usage (%): 99.9907
Max. virtual memory (Kb): 621112
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####