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 13208

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc23 THE 2005-04-20 20:23:18 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=15332 boxname=wulflinc23 idbench=1180 idsolver=5 numberseed=0
MD5SUM SOLVER: 1d62365061f6d70b1a242542b016b2e4  /oldhome/oroussel/solvers/minisat+
MD5SUM BENCH:  d28d6112d880a2aec142bea33a4150fb  /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-van.opb
REAL COMMAND:  minisat+ /oldhome/oroussel/tmp/wulflinc23/normalized-mps-v2-20-10-van.opb
IDLAUNCH: 15332
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.037
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:        445312 kB
Buffers:         33052 kB
Cached:         514900 kB
SwapCached:        672 kB
Active:         232920 kB
Inactive:       317324 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        445060 kB
SwapTotal:     2097136 kB
SwapFree:      2095788 kB
Dirty:               0 kB
Writeback:           0 kB
Mapped:           5276 kB
Slab:            33320 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-04-20 20:25:12 (client local time) WITH STATUS 1 IN 107.482 SECONDS
stats: 15332 7 107.482 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): 1.06 0.64 0.27 1/54 20522
Raw data (stat): 20522 (runsolver) D 20521 3260 3259 0 -1 64 4 0 0 0 0 0 0 0 18 0 1 0 539289500 1052672 99 4294967295 134512640 135381576 3221224528 3221219772 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+10.0046 s]
Raw data (loadavg): 1.05 0.65 0.28 2/54 20522
Raw data (stat): 20522 (minisat+) R 20521 3260 3259 0 -1 0 1335 0 0 0 960 5 0 0 25 0 1 0 539289500 7393280 1260 4294967295 134512640 134672761 3221224624 3221223932 1075372044 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 1805 1260 603 41 0 1764 0
vsize: 7220
[startup+20.0095 s]
Raw data (loadavg): 1.04 0.66 0.29 2/54 20522
Raw data (stat): 20522 (minisat+) R 20521 3260 3259 0 -1 0 2341 0 0 0 1957 9 0 0 25 0 1 0 539289500 11837440 2168 4294967295 134512640 134672761 3221224624 3221223932 1075372042 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 2890 2168 603 41 0 2849 0
vsize: 11560
[startup+30.0262 s]
Raw data (loadavg): 1.04 0.68 0.29 2/54 20522
Raw data (stat): 20522 (minisat+) R 20521 3260 3259 0 -1 0 2816 0 0 0 2956 11 0 0 25 0 1 0 539289500 12939264 2643 4294967295 134512640 134672761 3221224624 3221223932 134516148 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 3159 2643 603 41 0 3118 0
vsize: 12636
[startup+40.0406 s]
Raw data (loadavg): 1.03 0.69 0.30 2/54 20522
Raw data (stat): 20522 (minisat+) R 20521 3260 3259 0 -1 0 3660 0 0 0 3954 14 0 0 25 0 1 0 539289500 19501056 3487 4294967295 134512640 134672761 3221224624 3221223916 1075372042 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 4761 3487 603 41 0 4720 0
vsize: 19044
[startup+50.0423 s]
Raw data (loadavg): 1.02 0.70 0.31 2/54 20522
Raw data (stat): 20522 (minisat+) R 20521 3260 3259 0 -1 0 4252 0 0 0 4951 17 0 0 25 0 1 0 539289500 20860928 3914 4294967295 134512640 134672761 3221224624 3221223952 134586518 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5093 3914 603 41 0 5052 0
vsize: 20372
[startup+60.0423 s]
Raw data (loadavg): 1.02 0.71 0.31 2/54 20522
Raw data (stat): 20522 (minisat+) R 20521 3260 3259 0 -1 0 4484 0 0 0 5949 19 0 0 25 0 1 0 539289500 21254144 4146 4294967295 134512640 134672761 3221224624 3221223932 1075372042 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5189 4146 603 41 0 5148 0
vsize: 20756
[startup+70.0563 s]
Raw data (loadavg): 1.02 0.71 0.32 2/54 20522
Raw data (stat): 20522 (minisat+) R 20521 3260 3259 0 -1 0 4740 0 0 0 6949 21 0 0 25 0 1 0 539289500 21950464 4402 4294967295 134512640 134672761 3221224624 3221223916 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+80.0701 s]
Raw data (loadavg): 1.01 0.72 0.33 2/54 20522
Raw data (stat): 20522 (minisat+) R 20521 3260 3259 0 -1 0 5071 0 0 0 7948 24 0 0 25 0 1 0 539289500 22642688 4733 4294967295 134512640 134672761 3221224624 3221223916 1075372042 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5528 4733 603 41 0 5487 0
vsize: 22112
[startup+90.0697 s]
Raw data (loadavg): 1.01 0.73 0.33 2/54 20522
Raw data (stat): 20522 (minisat+) R 20521 3260 3259 0 -1 0 5434 0 0 0 8947 25 0 0 25 0 1 0 539289500 23429120 5096 4294967295 134512640 134672761 3221224624 3221223916 1075372050 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5720 5096 603 41 0 5679 0
vsize: 22880
[startup+100.074 s]
Raw data (loadavg): 1.01 0.74 0.34 2/54 20522
Raw data (stat): 20522 (minisat+) R 20521 3260 3259 0 -1 0 5697 0 0 0 9946 26 0 0 25 0 1 0 539289500 24035328 5359 4294967295 134512640 134672761 3221224624 3221223932 1075372044 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5868 5359 603 41 0 5827 0
vsize: 23472
[startup+107.828 s]
Raw data (loadavg): 1.01 0.75 0.35 1/53 20522
Raw data (stat): 20522 (minisat+) R 20521 3260 3259 0 -1 0 5697 0 0 0 9946 26 0 0 25 0 1 0 539289500 24035328 5359 4294967295 134512640 134672761 3221224624 3221223932 1075372044 0 0 5 16386 0 0 0 17 1 0 0
Raw data (statm): 5868 5359 603 41 0 5827 0
vsize: 0

Child status: 1
Real time (s): 107.827
CPU time (s): 107.482
CPU user time (s): 107.196
CPU system time (s): 0.285956
CPU usage (%): 99.6795
Max. virtual memory (Kb): 23472
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####