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/miplib3/normalized-mps-v2-13-7-p0033.opb
MD5SUMac34ff6897914e24c28629171d300833
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3089
Optimality of the best value was proved NO
Number of terms in the objective function 33
Biggest coefficient in the objective function 517
Number of bits for the biggest coefficient in the objective function 10
Sum of the numbers in the objective function 7276
Number of bits of the sum of numbers in the objective function 13
Biggest number in a constraint 1656
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 7276
Number of bits of the biggest sum of numbers13
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.06399
Number of variables33
Total number of constraints48
Number of constraints which are clauses1
Number of constraints which are cardinality constraints (but not clauses)36
Number of constraints which are nor clauses,nor cardinality constraints11
Minimum length of a constraint1
Maximum length of a constraint19

Trace number 33931 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-05-27 18:20:11 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=18689 boxname=wulflinc1 idbench=1438 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  ac34ff6897914e24c28629171d300833  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-p0033.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-13-7-p0033.opb 0
IDLAUNCH: 18689
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        670600 kB
Buffers:         29724 kB
Cached:         310736 kB
SwapCached:        764 kB
Active:          36020 kB
Inactive:       306756 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        670348 kB
SwapTotal:     2097136 kB
SwapFree:      2095360 kB
Dirty:             812 kB
Writeback:           0 kB
Mapped:           5784 kB
Slab:            15404 kB
Committed_AS:    92684 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-27 18:20:12 (client local time) WITH STATUS 30 IN 0.334948 SECONDS
stats: 18689 0 0.334948 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 0  (#equs: 0)
Nr of vars set: 4  (#equs: 0)
#decisions: 8;  #end-nodes: 1;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 1 / 80 (80)
#axs: 16, #non-axs: 1
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:  3828 (3447:>=*);
#decisions: 7;  #end-nodes: 0;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 0 / 80 (80)
#axs: 16, #non-axs: 1
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:  4087 (3188:>=*);
#decisions: 20;  #end-nodes: 13;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 13 / 103 (80)
#axs: 16, #non-axs: 14
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:  4186 (3089:>=*);
#decisions: 571;  #end-nodes: 511;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 511 / 982 (80)
#axs: 16, #non-axs: 515
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:
  (pushed:) 4186 (3089:>=*)

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: 22  (#equs: 0)
Time taken in milliseconds: 190
times:
0m0.017s 0m0.008s
0m0.165s 0m0.045s
v  C157_bit0 -C158_bit0 -C159_bit0 -C160_bit0 -C161_bit0 -C162_bit0  C163_bit0  C164_bit0 -C165_bit0  C166_bit0 -C167_bit0 -C168_bit0 -C169_bit0  C170_bit0 -C171_bit0 -C172_bit0 -C173_bit0  C174_bit0 -C175_bit0 -C176_bit0  C177_bit0 -C178_bit0  C179_bit0 -C180_bit0  C181_bit0  C182_bit0  C183_bit0  C184_bit0  C185_bit0  C186_bit0 -C187_bit0 -C188_bit0 -C189_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): 0.93 0.98 0.91 1/55 13706
Raw data (stat): 13706 (runsolver) R 13705 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 743195755 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+0.669339 s]
Raw data (loadavg): 0.93 0.98 0.91 1/54 13719
Raw data (stat): 13706 (runsolver) R 13705 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 743195755 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 0

Child status: 30
Real time (s): 0.669113
CPU time (s): 0.334948
CPU user time (s): 0.217966
CPU system time (s): 0.116982
CPU usage (%): 50.0585
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	3089
#### END VERIFIER DATA ####