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-misc01.opb
MD5SUMc625a850881ad6f6b45ac56ea24bd563
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1120576
Optimality of the best value was proved NO
Number of terms in the objective function 21
Biggest coefficient in the objective function 1048576
Number of bits for the biggest coefficient in the objective function 21
Sum of the numbers in the objective function 2097151
Number of bits of the sum of numbers in the objective function 21
Biggest number in a constraint 1048576
Number of bits of the biggest number in a constraint 21
Biggest sum of numbers in a constraint 3441919
Number of bits of the biggest sum of numbers22
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.297953
Number of variables103
Total number of constraints136
Number of constraints which are clauses15
Number of constraints which are cardinality constraints (but not clauses)88
Number of constraints which are nor clauses,nor cardinality constraints33
Minimum length of a constraint1
Maximum length of a constraint91

Trace number 34281 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc22 THE 2005-05-27 21:50:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=16934 boxname=wulflinc22 idbench=1303 idsolver=8 numberseed=0
MD5SUM SOLVER: 4b637b3b6117f2add1a6288e91336322  /oldhome/oroussel/solvers/vallstSAT2005PB.sh
MD5SUM BENCH:  c625a850881ad6f6b45ac56ea24bd563  /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-misc01.opb
REAL COMMAND:  vallstSAT2005PB.sh /oldhome/oroussel/tmp/wulflinc22/normalized-mps-v2-13-7-misc01.opb 0
IDLAUNCH: 16934
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.031
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		: 451.031
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:        692656 kB
Buffers:         35780 kB
Cached:         283164 kB
SwapCached:        384 kB
Active:          56328 kB
Inactive:       264828 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        692404 kB
SwapTotal:     2097892 kB
SwapFree:      2096800 kB
Dirty:              48 kB
Writeback:           0 kB
Mapped:           5536 kB
Slab:            15316 kB
Committed_AS:    63604 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-27 21:51:04 (client local time) WITH STATUS 30 IN 7.57185 SECONDS
stats: 16934 0 7.57185 30
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
1:
seed: 0
Nr of vars set: 0  (#equs: 0)
Nr of vars set: 11  (#equs: 0)
#decisions: 252;  #end-nodes: 140;
#proof improvement attempts: 0;  #restarts: 1
Current batch, end-nodes: 39 / 162 (80)
#axs: 72, #non-axs: 105
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:  950846 (1146304:>=*);
#decisions: 12;  #end-nodes: 2;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 2 / 82 (80)
#axs: 72, #non-axs: 106
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:  952766 (1144384:>=*);
#decisions: 73;  #end-nodes: 51;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 51 / 80 (80)
#axs: 72, #non-axs: 106
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:  957566 (1139584:>=*);
#decisions: 30;  #end-nodes: 19;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 19 / 100 (80)
#axs: 72, #non-axs: 110
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:  961150 (1136000:>=*);
#decisions: 56;  #end-nodes: 32;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 32 / 247 (80)
#axs: 72, #non-axs: 126
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:  963582 (1133568:>=*);
#decisions: 54;  #end-nodes: 46;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 46 / 82 (80)
#axs: 72, #non-axs: 126
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:  964862 (1132288:>=*);
#decisions: 6;  #end-nodes: 1;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 1 / 82 (80)
#axs: 72, #non-axs: 126
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:  969342 (1127808:>=*);
#decisions: 206;  #end-nodes: 137;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 137 / 460 (80)
#axs: 72, #non-axs: 201
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:  972478 (1124672:>=*);
#decisions: 103;  #end-nodes: 72;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 72 / 183 (80)
#axs: 72, #non-axs: 238
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:  976574 (1120576:>=*);
#decisions: 1583;  #end-nodes: 1137;
#proof improvement attempts: 0;  #restarts: 0
Current batch, end-nodes: 1137 / 1608 (80)
#axs: 72, #non-axs: 912
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:) 976574 (1120576:>=*)

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: 56  (#equs: 0)
Time taken in milliseconds: 7400
times:
0m0.019s 0m0.007s
0m7.349s 0m0.074s
v -COL083_bit_7 -COL083_bit_6 -COL083_bit_5 -COL083_bit_4 -COL083_bit_3 -COL083_bit_2  COL083_bit_1 -COL083_bit0  COL083_bit1 -COL083_bit2 -COL083_bit3  COL083_bit4  COL083_bit5 -COL083_bit6 -COL083_bit7 -COL083_bit8  COL083_bit9 -COL083_bit10 -COL083_bit11 -COL083_bit12  COL083_bit13 -COL001_bit0 -COL002_bit0  COL003_bit0 -COL004_bit0 -COL005_bit0 -COL006_bit0 -COL007_bit0 -COL008_bit0 -COL009_bit0 -COL010_bit0 -COL011_bit0 -COL012_bit0 -COL013_bit0 -COL014_bit0 -COL015_bit0 -COL016_bit0 -COL017_bit0 -COL018_bit0 -COL019_bit0 -COL020_bit0  COL021_bit0 -COL022_bit0 -COL023_bit0 -COL024_bit0 -COL025_bit0 -COL026_bit0 -COL027_bit0 -COL028_bit0 -COL029_bit0 -COL030_bit0 -COL031_bit0  COL032_bit0 -COL033_bit0 -COL034_bit0 -COL035_bit0 -COL036_bit0 -COL037_bit0 -COL038_bit0 -COL039_bit0 -COL040_bit0 -COL041_bit0 -COL042_bit0 -COL043_bit0 -COL044_bit0 -COL045_bit0 -COL046_bit0 -COL047_bit0  COL048_bit0  COL049_bit0 -COL050_bit0 -COL051_bit0 -COL052_bit0 -COL053_bit0 -COL054_bit0 -COL055_bit0 -COL056_bit0 -COL057_bit0 -COL058_bit0 -COL059_bit0 -COL060_bit0 -COL061_bit0 -COL062_bit0 -COL063_bit0 -COL064_bit0 -COL065_bit0  COL066_bit0 -COL067_bit0 -COL068_bit0 -COL069_bit0 -COL070_bit0 -COL071_bit0 -COL072_bit0  COL073_bit0  COL074_bit0  COL075_bit0 -COL076_bit0  COL077_bit0 -COL078_bit0 -COL079_bit0  COL080_bit0 -COL081_bit0  COL082_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): 0.70 0.91 0.92 2/54 27626
Raw data (stat): 27626 (runsolver) R 27625 23310 23309 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 859537337 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 0 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+7.91919 s]
Raw data (loadavg): 0.72 0.91 0.92 1/53 27639
Raw data (stat): 27626 (runsolver) R 27625 23310 23309 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 859537337 884736 94 4294967295 134512640 135332820 3221224448 3221219612 135092226 0 0 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): 7.91896
CPU time (s): 7.57185
CPU user time (s): 7.43587
CPU system time (s): 0.135979
CPU usage (%): 95.6167
Max. virtual memory (Kb): 864
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
Verifier:	OK	1120576
#### END VERIFIER DATA ####