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-cc.opb
MD5SUM0493ba9e257fafbb54efa7af2eeb7bf2
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1567
Optimality of the best value was proved YES
Number of terms in the objective function 133
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 5699
Number of bits of the sum of numbers in the objective function 13
Biggest number in a constraint 60
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 5699
Number of bits of the biggest sum of numbers13
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark15.8786
Number of variables133
Total number of constraints229
Number of constraints which are clauses229
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 constraint1
Maximum length of a constraint31

Trace number 258

Launcher Data

LAUNCH ON wulflinc22 THE 2005-09-18 09:06:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=250 boxname=wulflinc22 idbench=250 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  0493ba9e257fafbb54efa7af2eeb7bf2  /oldhome/oroussel/tmp/wulflinc22/normalized-cc.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc22/normalized-cc.opb
IDLAUNCH: 250
/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:        950088 kB
Buffers:         33148 kB
Cached:          24320 kB
SwapCached:        536 kB
Active:          53208 kB
Inactive:         6772 kB
HighTotal:      131008 kB
HighFree:       104692 kB
LowTotal:       903652 kB
LowFree:        845396 kB
SwapTotal:     2097892 kB
SwapFree:      2096832 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5856 kB
Slab:            18928 kB
Committed_AS:    64132 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 09:06:49 (client local time) WITH STATUS 30 IN 15.8786 SECONDS
stats: 250 0 15.8786 30

Solver Data

c INFO: OSL Context initialized.
c Initial problem consists of 133 variables and 229 constraints.
c	preprocess terminated. Elapsed time: 0.079
c After prepocess the problem consists of 121 variables and 169 constraints.
c Initial Lower Bound: 377
c NEW SOLUTION FOUND: 1936 @ 0.087 @ #Dec. 20
c NEW SOLUTION FOUND: 1903 @ 0.087 @ #Dec. 20
c NEW SOLUTION FOUND: 1870 @ 0.088 @ #Dec. 21
c NEW SOLUTION FOUND: 1861 @ 0.098 @ #Dec. 35
c NEW SOLUTION FOUND: 1845 @ 0.102 @ #Dec. 41
c NEW SOLUTION FOUND: 1820 @ 0.104 @ #Dec. 46
c NEW SOLUTION FOUND: 1804 @ 0.11 @ #Dec. 53
c NEW SOLUTION FOUND: 1797 @ 0.12 @ #Dec. 73
c NEW SOLUTION FOUND: 1772 @ 0.136 @ #Dec. 97
c NEW SOLUTION FOUND: 1756 @ 0.238 @ #Dec. 260
c NEW SOLUTION FOUND: 1751 @ 0.238 @ #Dec. 260
c Restart #1 #Var: 121 #Dec: 507 LB: 377 @ 0.458
c Restart #2 #Var: 121 #Dec: 970 LB: 377 @ 0.95
c NEW SOLUTION FOUND: 1730 @ 1.026 @ #Dec. 1024
c NEW SOLUTION FOUND: 1715 @ 1.364 @ #Dec. 1384
c NEW SOLUTION FOUND: 1697 @ 1.366 @ #Dec. 1387
c NEW SOLUTION FOUND: 1686 @ 1.66 @ #Dec. 1649
c NEW SOLUTION FOUND: 1668 @ 1.665 @ #Dec. 1654
c NEW SOLUTION FOUND: 1650 @ 1.67 @ #Dec. 1659
c NEW SOLUTION FOUND: 1642 @ 2.529 @ #Dec. 2065
c NEW SOLUTION FOUND: 1617 @ 2.558 @ #Dec. 2100
c Restart #3 #Var: 121 #Dec: 2706 LB: 377 @ 4.157
c Restart #4 #Var: 121 #Dec: 3714 LB: 377 @ 6.03
c Restart #5 #Var: 121 #Dec: 4780 LB: 377 @ 8.756
c Restart #6 #Var: 121 #Dec: 6114 LB: 377 @ 11.452
c CHANGE to LPR mode... 	UB: 1617	MIS: 1342	LPR: 1567 (0.0235)	Diff: 0.85641
c Restart #0 #Var: 121 #Dec: 7751 LB: 377 @ 15.548
c NEW SOLUTION FOUND: 1575 @ 15.647 @ #Dec. 7752
c NEW SOLUTION FOUND: 1567 @ 15.845 @ #Dec. 7752
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 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 x111 -x112 -x113 x114 -x115 x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 
c Cost: 1567
c Exit Code: 30
c Total time: 15.847 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/22462/stat): 22462 (bsolo) R 22461 22462 21452 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1840045168 438272 3 4294967295 134512640 134736556 3221224576 3221224576 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/22462/statm): 107 3 90 68 0 39 0
[pid=22462] vsize: 428
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open syscall for file /oldhome/oroussel/tmp/wulflinc22/normalized-cc.opb

[startup+10.0037 s]
Raw data (loadavg): 0.89 0.94 0.90 1/56 22462
Raw data (/proc/22462/stat): 22462 (bsolo) T 22461 22462 21452 0 -1 0 9348 0 0 0 939 33 0 0 25 0 1 0 1840045168 42029056 9196 4294967295 134512640 134736556 3221224576 3221223468 1077781665 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/22462/statm): 10261 9196 1116 68 0 10193 0
[pid=22462] vsize: 41044
Current children cumulated CPU time (s) 9.72
Current children cumulated vsize (Kb) 41044
One traced child (pid=22462) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 16.2843
CPU time (s): 15.8786
CPU user time (s): 15.3467
CPU system time (s): 0.531919
CPU usage (%): 97.5086
Max. virtual memory (cumulated for all children) (Kb): 41044

Verifier Data

Verifier:	OK	1567