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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-van.opb
MD5SUMd28d6112d880a2aec142bea33a4150fb
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 226795425792
Number of bits of the biggest number in a constraint 38
Biggest sum of numbers in a constraint 973128929893
Number of bits of the biggest sum of numbers40
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark207.441
Number of variables135360
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 constraint496

Trace number 13209

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc31 THE 2005-04-20 20:23:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=15340 boxname=wulflinc31 idbench=1180 idsolver=13 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d28d6112d880a2aec142bea33a4150fb  /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-van.opb
REAL COMMAND:  minisat+ -w /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-van.opb /oldhome/oroussel/tmp/wulflinc31/normalized-mps-v2-20-10-van.opb
IDLAUNCH: 15340
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.153
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		: 451.153
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:        471216 kB
Buffers:         33532 kB
Cached:         491384 kB
SwapCached:        588 kB
Active:         233788 kB
Inactive:       293188 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        470964 kB
SwapTotal:     2097892 kB
SwapFree:      2096468 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5100 kB
Slab:            30704 kB
Committed_AS:    63488 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-04-20 20:25:15 (client local time) WITH STATUS 1 IN 108.246 SECONDS
stats: 15340 7 108.246 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
PARSE ERROR! [line 24966] Integer overflow. Big numbers not supported yet.
#### 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
Raw data (loadavg): 0.98 0.59 0.24 1/54 12982
Raw data (stat): 12982 (runsolver) D 12981 23176 23175 0 -1 64 4 0 0 0 0 0 0 0 18 0 1 0 539276326 1052672 99 4294967295 134512640 135381576 3221224448 3221219692 135158418 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0012 s]
Raw data (loadavg): 0.99 0.60 0.25 2/54 12982
Raw data (stat): 12982 (minisat+) R 12981 23176 23175 0 -1 0 1337 0 0 0 956 4 0 0 25 0 1 0 539276326 7393280 1262 4294967295 134512640 134672761 3221224544 3221223852 1075372042 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 1805 1262 603 41 0 1764 0
vsize: 7220
[startup+20.0018 s]
Raw data (loadavg): 0.99 0.61 0.26 2/54 12982
Raw data (stat): 12982 (minisat+) R 12981 23176 23175 0 -1 0 2343 0 0 0 1953 7 0 0 25 0 1 0 539276326 11837440 2170 4294967295 134512640 134672761 3221224544 3221223684 134579899 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 2890 2170 603 41 0 2849 0
vsize: 11560
[startup+30.0041 s]
Raw data (loadavg): 0.99 0.63 0.27 2/54 12982
Raw data (stat): 12982 (minisat+) R 12981 23176 23175 0 -1 0 2818 0 0 0 2951 10 0 0 25 0 1 0 539276326 12939264 2645 4294967295 134512640 134672761 3221224544 3221223856 134586683 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 3159 2645 603 41 0 3118 0
vsize: 12636
[startup+40.0057 s]
Raw data (loadavg): 0.99 0.64 0.27 2/54 12982
Raw data (stat): 12982 (minisat+) R 12981 23176 23175 0 -1 0 3662 0 0 0 3948 13 0 0 25 0 1 0 539276326 19501056 3489 4294967295 134512640 134672761 3221224544 3221223852 1075372042 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 4761 3489 603 41 0 4720 0
vsize: 19044
[startup+50.0066 s]
Raw data (loadavg): 0.99 0.65 0.28 2/54 12982
Raw data (stat): 12982 (minisat+) R 12981 23176 23175 0 -1 0 4253 0 0 0 4946 15 0 0 25 0 1 0 539276326 20860928 3915 4294967295 134512640 134672761 3221224544 3221223836 1075372042 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5093 3915 603 41 0 5052 0
vsize: 20372
[startup+60.0096 s]
Raw data (loadavg): 0.99 0.66 0.29 2/54 12982
Raw data (stat): 12982 (minisat+) R 12981 23176 23175 0 -1 0 4486 0 0 0 5945 16 0 0 25 0 1 0 539276326 21254144 4148 4294967295 134512640 134672761 3221224544 3221223836 134516148 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5189 4148 603 41 0 5148 0
vsize: 20756
[startup+70.0098 s]
Raw data (loadavg): 0.99 0.67 0.29 2/54 12982
Raw data (stat): 12982 (minisat+) R 12981 23176 23175 0 -1 0 4740 0 0 0 6943 18 0 0 25 0 1 0 539276326 21950464 4402 4294967295 134512640 134672761 3221224544 3221223836 1075372042 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5359 4402 603 41 0 5318 0
vsize: 21436
[startup+80.0113 s]
Raw data (loadavg): 0.99 0.68 0.30 2/54 12982
Raw data (stat): 12982 (minisat+) R 12981 23176 23175 0 -1 0 5065 0 0 0 7941 19 0 0 25 0 1 0 539276326 22646784 4727 4294967295 134512640 134672761 3221224544 3221223856 134586646 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5529 4727 603 41 0 5488 0
vsize: 22116
[startup+90.0112 s]
Raw data (loadavg): 0.99 0.69 0.31 2/54 12982
Raw data (stat): 12982 (minisat+) R 12981 23176 23175 0 -1 0 5427 0 0 0 8938 22 0 0 25 0 1 0 539276326 23515136 5089 4294967295 134512640 134672761 3221224544 3221223852 1075372042 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5741 5089 603 41 0 5700 0
vsize: 22964
[startup+100.026 s]
Raw data (loadavg): 0.99 0.70 0.31 2/54 12982
Raw data (stat): 12982 (minisat+) R 12981 23176 23175 0 -1 0 5685 0 0 0 9938 24 0 0 25 0 1 0 539276326 24080384 5347 4294967295 134512640 134672761 3221224544 3221223836 1075372042 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5879 5347 603 41 0 5838 0
vsize: 23516
[startup+108.642 s]
Raw data (loadavg): 0.99 0.71 0.32 1/53 12982
Raw data (stat): 12982 (minisat+) R 12981 23176 23175 0 -1 0 5685 0 0 0 9938 24 0 0 25 0 1 0 539276326 24080384 5347 4294967295 134512640 134672761 3221224544 3221223836 1075372042 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5879 5347 603 41 0 5838 0
vsize: 0

Child status: 1
Real time (s): 108.641
CPU time (s): 108.246
CPU user time (s): 107.978
CPU system time (s): 0.267959
CPU usage (%): 99.6358
Max. virtual memory (Kb): 23516
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####