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-mux.opb
MD5SUMfa7153262db792d01bec14f5a651af5b
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 872
Optimality of the best value was proved YES
Number of terms in the objective function 232
Biggest coefficient in the objective function 61
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 9597
Number of bits of the sum of numbers in the objective function 14
Biggest number in a constraint 61
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 9597
Number of bits of the biggest sum of numbers14
Best result obtained on this benchmarkOPTIMUM FOUND
Best CPU time to get the best result obtained on this benchmark18.0453
Number of variables232
Total number of constraints527
Number of constraints which are clauses527
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 constraint27

Trace number 262

Launcher Data

LAUNCH ON wulflinc22 THE 2005-09-18 09:07:16 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=253 boxname=wulflinc22 idbench=253 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  fa7153262db792d01bec14f5a651af5b  /oldhome/oroussel/tmp/wulflinc22/normalized-mux.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc22/normalized-mux.opb
IDLAUNCH: 253
/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:        949972 kB
Buffers:         33180 kB
Cached:          24356 kB
SwapCached:        536 kB
Active:          53228 kB
Inactive:         6812 kB
HighTotal:      131008 kB
HighFree:       104720 kB
LowTotal:       903652 kB
LowFree:        845252 kB
SwapTotal:     2097892 kB
SwapFree:      2096832 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5856 kB
Slab:            19012 kB
Committed_AS:    64168 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-18 09:07:34 (client local time) WITH STATUS 30 IN 18.0453 SECONDS
stats: 253 0 18.0453 30

Solver Data

c INFO: OSL Context initialized.
c Initial problem consists of 232 variables and 527 constraints.
c	preprocess terminated. Elapsed time: 0.146
c After prepocess the problem consists of 231 variables and 515 constraints.
c Initial Lower Bound: 0
c NEW SOLUTION FOUND: 1958 @ 0.188 @ #Dec. 42
c NEW SOLUTION FOUND: 1916 @ 0.188 @ #Dec. 43
c NEW SOLUTION FOUND: 1884 @ 0.192 @ #Dec. 47
c NEW SOLUTION FOUND: 1877 @ 0.212 @ #Dec. 76
c NEW SOLUTION FOUND: 1852 @ 0.219 @ #Dec. 85
c NEW SOLUTION FOUND: 1844 @ 0.225 @ #Dec. 94
c NEW SOLUTION FOUND: 1842 @ 0.228 @ #Dec. 98
c NEW SOLUTION FOUND: 1819 @ 0.229 @ #Dec. 100
c NEW SOLUTION FOUND: 1794 @ 0.232 @ #Dec. 103
c NEW SOLUTION FOUND: 1778 @ 0.24 @ #Dec. 112
c NEW SOLUTION FOUND: 1769 @ 0.271 @ #Dec. 156
c NEW SOLUTION FOUND: 1736 @ 0.272 @ #Dec. 156
c NEW SOLUTION FOUND: 1719 @ 0.327 @ #Dec. 227
c NEW SOLUTION FOUND: 1694 @ 0.33 @ #Dec. 230
c NEW SOLUTION FOUND: 1652 @ 0.381 @ #Dec. 294
c NEW SOLUTION FOUND: 1643 @ 0.452 @ #Dec. 366
c NEW SOLUTION FOUND: 1610 @ 0.452 @ #Dec. 366
c NEW SOLUTION FOUND: 1585 @ 0.513 @ #Dec. 438
c NEW SOLUTION FOUND: 1569 @ 0.596 @ #Dec. 530
c Restart #1 #Var: 231 #Dec: 860 LB: 0 @ 0.99
c Restart #2 #Var: 231 #Dec: 1390 LB: 0 @ 1.684
c NEW SOLUTION FOUND: 1109 @ 2.095 @ #Dec. 1457
c NEW SOLUTION FOUND: 1077 @ 2.1 @ #Dec. 1464
c NEW SOLUTION FOUND: 1061 @ 2.569 @ #Dec. 1997
c Restart #3 #Var: 229 #Dec: 2655 LB: 50 @ 3.518
c Restart #4 #Var: 229 #Dec: 4234 LB: 50 @ 5.684
c Restart #5 #Var: 229 #Dec: 5963 LB: 50 @ 8.449
c Restart #6 #Var: 229 #Dec: 7551 LB: 50 @ 12.944
c CHANGE to LPR mode... 	UB: 1061	MIS: 618	LPR: 872 (0.138)	Diff: 0.70872
c Restart #0 #Var: 229 #Dec: 9417 LB: 50 @ 17.466
c NEW SOLUTION FOUND: 872 @ 17.616 @ #Dec. 9418
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 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 -x151 x152 x153 x154 x155 x156 x157 x158 x159 -x160 -x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169 -x170 -x171 -x172 -x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 -x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188 -x189 -x190 -x191 -x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209 -x210 -x211 -x212 -x213 -x214 -x215 -x216 -x217 -x218 -x219 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x230 -x231 -x232 
c Cost: 872
c Exit Code: 30
c Total time: 18.01 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/22654/stat): 22654 (bsolo) R 22653 22654 21452 0 -1 0 19 0 0 0 0 0 0 0 22 0 1 0 1840049455 438272 3 4294967295 134512640 134736556 3221224576 3221224576 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/22654/statm): 107 3 90 68 0 39 0
[pid=22654] vsize: 428
open syscall for file /etc/ld.so.preload
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open syscall for file /oldhome/oroussel/lib/libpthread.so.0
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open syscall for file /oldhome/oroussel/tmp/wulflinc22/normalized-mux.opb

[startup+10.0032 s]
Raw data (loadavg): 0.83 0.92 0.90 2/56 22654
Raw data (/proc/22654/stat): 22654 (bsolo) R 22653 22654 21452 0 -1 0 7173 0 0 0 940 32 0 0 25 0 1 0 1840049455 32776192 7060 4294967295 134512640 134736556 3221224576 3221223264 134529265 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/22654/statm): 8002 7060 1116 68 0 7934 0
[pid=22654] vsize: 32008
Current children cumulated CPU time (s) 9.72
Current children cumulated vsize (Kb) 32008
One traced child (pid=22654) exited with status: 30
All traced children have exited ! Game is over.

Child status: 30
Real time (s): 18.4686
CPU time (s): 18.0453
CPU user time (s): 17.5153
CPU system time (s): 0.529919
CPU usage (%): 97.7077
Max. virtual memory (cumulated for all children) (Kb): 32008

Verifier Data

Verifier:	OK	872