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/MIPLIB/miplib/normalized-mps-v2-13-7-bm23.opb
MD5SUM9e4c4999c6f95fcef879d3d86840d71a
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 34
Optimality of the best value was proved NO
Number of terms in the objective function 27
Biggest coefficient in the objective function 9
Number of bits for the biggest coefficient in the objective function 4
Sum of the numbers in the objective function 124
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 65
Number of bits of the biggest number in a constraint 7
Biggest sum of numbers in a constraint 182
Number of bits of the biggest sum of numbers8
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.25796
Number of variables27
Total number of constraints47
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)27
Number of constraints which are nor clauses,nor cardinality constraints20
Minimum length of a constraint1
Maximum length of a constraint26

Trace number 33975 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc12 THE 2005-05-27 18:48:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16739 boxname=wulflinc12 idbench=1288 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  9e4c4999c6f95fcef879d3d86840d71a  /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-bm23.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc12/normalized-mps-v2-13-7-bm23.opb 0
IDLAUNCH: 16739
/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:        733044 kB
Buffers:         30528 kB
Cached:         250444 kB
SwapCached:        480 kB
Active:          41504 kB
Inactive:       241816 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        732792 kB
SwapTotal:     2097136 kB
SwapFree:      2096024 kB
Dirty:              60 kB
Writeback:           0 kB
Mapped:           5680 kB
Slab:            12716 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-27 18:48:40 (client local time) WITH STATUS 30 IN 3.14952 SECONDS
stats: 16739 0 3.14952 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 0  (#equs: 0)
Nr of vars set: 0  (#equs: 0)
#decisions: 105;  #end-nodes: 75;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 75 / 80 (80)
#axs: 21, #non-axs: 75
tight: meta-meta: start: 6, end: 9;  meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
result: model found (1)
Model found with constant:  39 (84:>=*);
#decisions: 24;  #end-nodes: 5;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 5 / 80 (80)
#axs: 21, #non-axs: 80
tight: meta-meta: start: 6, end: 9;  meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  63 (60:>=*);
#decisions: 42;  #end-nodes: 24;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 24 / 80 (80)
#axs: 21, #non-axs: 104
tight: meta-meta: start: 6, end: 9;  meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  64 (59:>=*);
#decisions: 574;  #end-nodes: 453;
#proof improvement attempts: 0;  #restarts: 5
Current batch, end-nodes: 48 / 81 (81)
#axs: 21, #non-axs: 557
tight: meta-meta: start: 6, end: 9;  meta: start: 12, end (keep): 23
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  65 (58:>=*);
#decisions: 1850;  #end-nodes: 1501;
#proof improvement attempts: 0;  #restarts: 18
Current batch, end-nodes: 15 / 84 (84)
#axs: 21, #non-axs: 1567
tight: meta-meta: start: 6, end: 9;  meta: start: 11, end (keep): 21
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  66 (57:>=*);
#decisions: 993;  #end-nodes: 799;
#proof improvement attempts: 0;  #restarts: 9
Current batch, end-nodes: 66 / 82 (82)
#axs: 21, #non-axs: 2366
tight: meta-meta: start: 6, end: 9;  meta: start: 11, end (keep): 21
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  70 (53:>=*);
#decisions: 178;  #end-nodes: 138;
#proof improvement attempts: 0;  #restarts: 1
Current batch, end-nodes: 57 / 80 (80)
#axs: 21, #non-axs: 2503
tight: meta-meta: start: 6, end: 9;  meta: start: 11, end (keep): 21
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  72 (51:>=*);
#decisions: 2001;  #end-nodes: 1624;
#proof improvement attempts: 0;  #restarts: 19
Current batch, end-nodes: 51 / 84 (84)
#axs: 21, #non-axs: 2884
tight: meta-meta: start: 6, end: 9;  meta: start: 10, end (keep): 19
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  78 (45:>=*);
#decisions: 1665;  #end-nodes: 1380;
#proof improvement attempts: 0;  #restarts: 16
Current batch, end-nodes: 57 / 84 (84)
#axs: 21, #non-axs: 2654
tight: meta-meta: start: 6, end: 9;  meta: start: 9, end (keep): 16
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  83 (40:>=*);
#decisions: 1424;  #end-nodes: 1180;
#proof improvement attempts: 0;  #restarts: 11
Current batch, end-nodes: 34 / 82 (82)
#axs: 21, #non-axs: 3800
tight: meta-meta: start: 6, end: 9;  meta: start: 9, end (keep): 16
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  84 (39:>=*);
#decisions: 5379;  #end-nodes: 4508;
#proof improvement attempts: 0;  #restarts: 46
Current batch, end-nodes: 242 / 293 (91)
#axs: 21, #non-axs: 3104
tight: meta-meta: start: 6, end: 9;  meta: start: 7, end (keep): 12
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  85 (38:>=*);
#decisions: 1562;  #end-nodes: 1408;
#proof improvement attempts: 0;  #restarts: 3
Current batch, end-nodes: 1096 / 1421 (80)
#axs: 21, #non-axs: 4121
tight: meta-meta: start: 6, end: 9;  meta: start: 7, end (keep): 12
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:  89 (34:>=*);
#decisions: 3091;  #end-nodes: 2831;
#proof improvement attempts: 0;  #restarts: 1
Current batch, end-nodes: 2749 / 3220 (80)
#axs: 21, #non-axs: 5874
tight: meta-meta: start: 6, end: 9;  meta: start: 7, end (keep): 12
loose: meta-meta: start: 9, end: 14;  meta: start: 30, end (keep): 50
Model found with constant:
  (pushed:) 89 (34:>=*)

With an increment of the last pushed constant, a proof of false was found.
result: proof of false found (0)
seed: 0
Nr of vars set: 18  (#equs: 0)
Time taken in milliseconds: 3000
times:
0m0.015s 0m0.010s
0m2.922s 0m0.102s
v -C101_bit0 -C102_bit0  C103_bit0 -C104_bit0  C105_bit0 -C106_bit0 -C107_bit0 -C108_bit0  C109_bit0 -C110_bit0 -C111_bit0 -C112_bit0 -C113_bit0 -C114_bit0  C115_bit0 -C116_bit0  C117_bit0 -C118_bit0 -C119_bit0  C120_bit0 -C121_bit0  C122_bit0 -C123_bit0 -C124_bit0 -C125_bit0 -C126_bit0  C127_bit0 
s OPTIMUM FOUND
#### 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): 0.77 0.92 0.89 2/54 6200
Raw data (stat): 6200 (runsolver) R 6199 32284 32283 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 800215889 884736 94 4294967295 134512640 135332820 3221224448 3221219612 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+3.50206 s]
Raw data (loadavg): 0.77 0.92 0.89 1/53 6213
Raw data (stat): 6200 (runsolver) R 6199 32284 32283 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 800215889 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 30
Real time (s): 3.50182
CPU time (s): 3.14952
CPU user time (s): 2.97655
CPU system time (s): 0.172973
CPU usage (%): 89.9394
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	34
#### END VERIFIER DATA ####