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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namesubmitted/manquinho/synthesis-ptl-cmos-circuits/normalized-cm42a.opb
MD5SUM62b75258091a8b1382fa8b1c633d9511
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 694
Optimality of the best value was proved YES
Number of terms in the objective function 99
Biggest coefficient in the objective function 60
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 4087
Number of bits of the sum of numbers in the objective function 12
Biggest number in a constraint 60
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 4087
Number of bits of the biggest sum of numbers12
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark13.371
Number of variables99
Total number of constraints185
Number of constraints which are clauses185
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint20

Trace number 260

Launcher Data

LAUNCH ON wulflinc22 THE 2005-09-18 09:06:55 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=251 boxname=wulflinc22 idbench=251 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  62b75258091a8b1382fa8b1c633d9511  /oldhome/oroussel/tmp/wulflinc22/normalized-cm42a.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc22/normalized-cm42a.opb
IDLAUNCH: 251
/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:        950036 kB
Buffers:         33164 kB
Cached:          24304 kB
SwapCached:        536 kB
Active:          53204 kB
Inactive:         6800 kB
HighTotal:      131008 kB
HighFree:       104720 kB
LowTotal:       903652 kB
LowFree:        845316 kB
SwapTotal:     2097892 kB
SwapFree:      2096832 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5856 kB
Slab:            18976 kB
Committed_AS:    64132 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 09:07:09 (client local time) WITH STATUS 30 IN 13.371 SECONDS
stats: 251 0 13.371 30

Solver Data

c INFO: OSL Context initialized.
c Initial problem consists of 99 variables and 185 constraints.
c	preprocess terminated. Elapsed time: 0.062
c After prepocess the problem consists of 95 variables and 177 constraints.
c Initial Lower Bound: 0
c NEW SOLUTION FOUND: 1146 @ 0.072 @ #Dec. 21
c NEW SOLUTION FOUND: 1114 @ 0.072 @ #Dec. 21
c NEW SOLUTION FOUND: 1082 @ 0.072 @ #Dec. 22
c NEW SOLUTION FOUND: 1050 @ 0.074 @ #Dec. 24
c NEW SOLUTION FOUND: 1025 @ 0.076 @ #Dec. 29
c NEW SOLUTION FOUND: 1000 @ 0.086 @ #Dec. 50
c NEW SOLUTION FOUND: 998 @ 0.092 @ #Dec. 60
c NEW SOLUTION FOUND: 975 @ 0.093 @ #Dec. 63
c NEW SOLUTION FOUND: 959 @ 0.109 @ #Dec. 105
c NEW SOLUTION FOUND: 936 @ 0.112 @ #Dec. 111
c NEW SOLUTION FOUND: 920 @ 0.192 @ #Dec. 259
c NEW SOLUTION FOUND: 897 @ 0.197 @ #Dec. 270
c Restart #1 #Var: 95 #Dec: 507 LB: 0 @ 0.364
c NEW SOLUTION FOUND: 700 @ 0.429 @ #Dec. 547
c Restart #2 #Var: 94 #Dec: 958 LB: 25 @ 0.651
c Restart #3 #Var: 91 #Dec: 1684 LB: 100 @ 1.747
c Restart #4 #Var: 91 #Dec: 2596 LB: 100 @ 2.371
c NEW SOLUTION FOUND: 696 @ 2.736 @ #Dec. 2997
c Restart #5 #Var: 91 #Dec: 4185 LB: 100 @ 3.975
c Restart #6 #Var: 91 #Dec: 5870 LB: 100 @ 5.375
c Restart #7 #Var: 91 #Dec: 7436 LB: 100 @ 7.356
c Restart #8 #Var: 91 #Dec: 9429 LB: 100 @ 9.958
c CHANGE to LPR mode... 	UB: 696	MIS: 436	LPR: 694 (0.0174)	Diff: 0.62824
c Restart #0 #Var: 91 #Dec: 11339 LB: 100 @ 13.144
c NEW SOLUTION FOUND: 694 @ 13.218 @ #Dec. 11340
s OPTIMUM FOUND
v -x1 -x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 -x11 x12 x13 x14 x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 x28 x29 -x30 -x31 x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 x41 -x42 -x43 x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 x74 -x75 x76 -x77 x78 -x79 x80 -x81 x82 -x83 x84 -x85 x86 -x87 x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 
c Cost: 694
c Exit Code: 30
c Total time: 13.34 s

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/22558/stat): 22558 (bsolo) R 22557 22558 21452 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1840047429 438272 3 4294967295 134512640 134736556 3221224576 3221224576 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/22558/statm): 107 3 90 68 0 39 0
[pid=22558] vsize: 428
open syscall for file /etc/ld.so.preload
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open syscall for file /oldhome/oroussel/tmp/wulflinc22/normalized-cm42a.opb

[startup+10.0026 s]
Raw data (loadavg): 0.86 0.93 0.90 2/56 22558
Raw data (/proc/22558/stat): 22558 (bsolo) R 22557 22558 21452 0 -1 0 7928 0 0 0 920 37 0 0 25 0 1 0 1840047429 36126720 7799 4294967295 134512640 134736556 3221224576 3221223120 134716124 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/22558/statm): 8820 7799 1116 68 0 8752 0
[pid=22558] vsize: 35280
Current children cumulated CPU time (s) 9.57
Current children cumulated vsize (Kb) 35280
One traced child (pid=22558) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 13.8864
CPU time (s): 13.371
CPU user time (s): 12.86
CPU system time (s): 0.510922
CPU usage (%): 96.2881
Max. virtual memory (cumulated for all children) (Kb): 35280

Verifier Data

Verifier:	OK	694