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/unibo/normalized-mps-v2-13-7-van.opb
MD5SUM63aca17b11625a83c7613ee93b3a2e23
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 192
Biggest coefficient in the objective function 2427002644
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 319999999936
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 28349428224
Number of bits of the biggest number in a constraint 35
Biggest sum of numbers in a constraint 319999999936
Number of bits of the biggest sum of numbers39
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark139.971
Number of variables98496
Total number of constraints39811
Number of constraints which are clauses128
Number of constraints which are cardinality constraints (but not clauses)195
Number of constraints which are nor clauses,nor cardinality constraints39488
Minimum length of a constraint1
Maximum length of a constraint361

Trace number 35789

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc12 THE 2005-05-28 14:08:10 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25093 boxname=wulflinc12 idbench=1565 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  63aca17b11625a83c7613ee93b3a2e23  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-van.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-van.opb
IDLAUNCH: 25093
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.091
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		: 451.091
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:        481336 kB
Buffers:         36264 kB
Cached:         480468 kB
SwapCached:        340 kB
Active:         144892 kB
Inactive:       383640 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        481084 kB
SwapTotal:     2097136 kB
SwapFree:      2096008 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           5380 kB
Slab:            19172 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 14:09:57 (client local time) WITH STATUS 1 IN 103.729 SECONDS
stats: 25093 7 103.729 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): 0.95 0.95 0.91 2/54 14192
Raw data (stat): 14192 (runsolver) R 14191 32284 32283 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 807174381 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+10.0003 s]
Raw data (loadavg): 0.95 0.95 0.91 2/54 14192
Raw data (stat): 14192 (pb2sat) R 14191 32284 32283 0 -1 0 27267 0 0 0 945 53 0 0 25 0 1 0 807174381 85651456 16154 4294967295 134512640 135726644 3221224592 3221192480 134767091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 20911 16155 300 300 0 20611 0
vsize: 83644
[startup+20.0002 s]
Raw data (loadavg): 0.96 0.95 0.91 2/54 14192
Raw data (stat): 14192 (pb2sat) R 14191 32284 32283 0 -1 0 56823 0 0 0 1884 114 0 0 25 0 1 0 807174381 172961792 34480 4294967295 134512640 135726644 3221224592 3221149368 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 42227 34481 300 300 0 41927 0
vsize: 168908
[startup+30.001 s]
Raw data (loadavg): 0.97 0.95 0.91 2/54 14192
Raw data (stat): 14192 (pb2sat) R 14191 32284 32283 0 -1 0 97666 0 0 0 2801 198 0 0 25 0 1 0 807174381 296726528 53121 4294967295 134512640 135726644 3221224592 3221150896 134782594 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 72443 53121 300 300 0 72143 0
vsize: 289772
[startup+40.0008 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 14192
Raw data (stat): 14192 (pb2sat) R 14191 32284 32283 0 -1 0 114783 0 0 0 3765 234 0 0 25 0 1 0 807174381 346095616 69998 4294967295 134512640 135726644 3221224592 3221155696 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84496 69998 300 300 0 84196 0
vsize: 337984
[startup+50.002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 14192
Raw data (stat): 14192 (pb2sat) R 14191 32284 32283 0 -1 0 157534 0 0 0 4689 310 0 0 25 0 1 0 807174381 553590784 111651 4294967295 134512640 135726644 3221224592 3221154376 135282351 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 135154 111654 300 300 0 134854 0
vsize: 540616
[startup+60.0026 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 14192
Raw data (stat): 14192 (pb2sat) R 14191 32284 32283 0 -1 0 195540 0 0 0 5607 393 0 0 25 0 1 0 807174381 592547840 106368 4294967295 134512640 135726644 3221224592 3221160216 135280487 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 144665 106368 300 300 0 144365 0
vsize: 578660
[startup+70.0023 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 14192
Raw data (stat): 14192 (pb2sat) R 14191 32284 32283 0 -1 0 207733 0 0 0 6582 417 0 0 25 0 1 0 807174381 626102272 118341 4294967295 134512640 135726644 3221224592 3221152544 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 152857 118341 300 300 0 152557 0
vsize: 611428
[startup+80.0033 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 14192
Raw data (stat): 14192 (pb2sat) R 14191 32284 32283 0 -1 0 228466 0 0 0 7541 459 0 0 25 0 1 0 807174381 655298560 138830 4294967295 134512640 135726644 3221224592 3221182168 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 159985 138830 300 300 0 159685 0
vsize: 639940
[startup+90.0031 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 14192
Raw data (stat): 14192 (pb2sat) R 14191 32284 32283 0 -1 0 245246 0 0 0 8509 491 0 0 25 0 1 0 807174381 729690112 155413 4294967295 134512640 135726644 3221224592 3221160568 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 178147 155414 300 300 0 177847 0
vsize: 712588
[startup+100.004 s]
Raw data (loadavg): 0.99 0.96 0.91 2/54 14192
Raw data (stat): 14192 (pb2sat) R 14191 32284 32283 0 -1 0 262476 0 0 0 9471 529 0 0 25 0 1 0 807174381 755339264 172443 4294967295 134512640 135726644 3221224592 3221222708 134541622 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184409 172443 300 300 0 184109 0
vsize: 737636
[startup+103.726 s]
Raw data (loadavg): 0.99 0.96 0.91 1/53 14192
Raw data (stat): 14192 (pb2sat) R 14191 32284 32283 0 -1 0 262476 0 0 0 9471 529 0 0 25 0 1 0 807174381 755339264 172443 4294967295 134512640 135726644 3221224592 3221222708 134541622 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 184409 172443 300 300 0 184109 0
vsize: 0

Child status: 1
Real time (s): 103.726
CPU time (s): 103.729
CPU user time (s): 98.0761
CPU system time (s): 5.65314
CPU usage (%): 100.003
Max. virtual memory (Kb): 737636
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####