Trace number 50279

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 into four (or five) parts:
  1. 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 ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
bsolo 2006/05OPT10 0.84787 0.862508

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/
logic_synthesis/normalized-m100_100_10_15.r.opb
MD5SUM7e1b8a9f40a52781f7629bf04a2d5793
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark10
Best CPU time to get the best result obtained on this benchmark0.84787
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 10
Optimality of the best value was proved YES
Number of variables100
Total number of constraints100
Number of constraints which are clauses100
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 constraint10
Maximum length of a constraint15
Number of terms in the objective function 100
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 100
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 100
Number of bits of the biggest sum of numbers7
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00	c Time Limit set via PBTIMEOUT to 1800
0.01	c INFO: OSL Context initialized.
0.02	c Initial problem consists of 100 variables and 100 constraints.
0.02	c Switching on LPR.
0.02	c No problem reductions applied in OPT. instance.
0.02	c	preprocess terminated. Elapsed time: 0.014
0.02	c After prepocess the problem consists of 100 variables and 100 constraints.
0.04	c Initial Lower Bound: 8
0.07	o 10
0.07	c NEW SOLUTION FOUND: 10 @ 0.06
0.86	s OPTIMUM FOUND
0.86	c Cost: 10
0.86	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
0.86	v -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
0.86	v -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
0.86	v -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 x96 -x97 x98 -x99 -x100
0.86	c Exit Code: 30
0.86	c Total time: 0.845 s

Verifier Data (download as text)

OK	10

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes

runsolver version 3.0.1 (c) roussel@cril.univ-artois.fr

Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
command line: runsolver --timestamp -w ROOT/results/node81/watcher-50279-1149887325 -o ROOT/results/node81/solver-50279-1149887325 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node81/50279-1149887325/instance-50279-1149887325.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.92 0.97 0.91 2/68 25015
/proc/meminfo: memFree=1199696/2055892 swapFree=4085344/4096564
[pid=25015] ppid=25013 vsize=3368 CPUtime=0
/proc/25015/stat : 25015 (bsolo) R 25013 25015 24969 0 -1 0 55 0 0 0 0 0 0 0 18 0 1 0 254371913 3448832 39 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 10106007 0 0 4096 0 0 0 0 17 1 0 0
/proc/25015/statm: 842 42 31 55 0 40 0

Child status: 30
Real time (s): 0.862508
CPU time (s): 0.84787
CPU user time (s): 0.835872
CPU system time (s): 0.011998
CPU usage (%): 98.3028
Max. virtual memory (cumulated for all children) (Kb): 0
The end

Launcher Data (download as text)

Begin job on node81 on Fri Jun  9 21:08:45 UTC 2006


FILE ID= 50279-1149887325

PBS_JOBID= 384876

BENCH NAME= HOME/pub/bench/PB06/final/normalized-PB06/OPT-SMALLINT/submitted-PB06/manquiho/logic_synthesis/normalized-m100_100_10_15.r.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node81/50279-1149887325/instance-50279-1149887325.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node81/watcher-50279-1149887325 -o ROOT/results/node81/solver-50279-1149887325 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node81/50279-1149887325/instance-50279-1149887325.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  7e1b8a9f40a52781f7629bf04a2d5793

RANDOM SEED= 174060780


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.248
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6006.19
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.248
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055892 kB
MemFree:       1199904 kB
Buffers:         47016 kB
Cached:         729548 kB
SwapCached:       2716 kB
Active:         150736 kB
Inactive:       634792 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1199904 kB
SwapTotal:     4096564 kB
SwapFree:      4085344 kB
Dirty:             148 kB
Writeback:           0 kB
Mapped:          16592 kB
Slab:            57084 kB
Committed_AS:   534988 kB
PageTables:       1288 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node81 on Fri Jun  9 21:08:46 UTC 2006