Trace number 237287

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 NameAnswerCPU timeWall clock time
Tramontane 2006-12-04SAT 0.369943 0.378938

General information on the benchmark

Nameos-gp/
gp10-09-1112.xml
MD5SUM06eaa40bf809ba3f654c85e42e55e982
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.369943
SatisfiableYES
(Un)Satisfiability was proved
Number of variables101
Number of constraints1000
Maximum constraint arity2
Maximum domain size1113
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1000
Global constraints used (with number of constraints)

Solver Data (download as text)

0.20	c 
0.20	c Parsing xml file
0.20	c 	domains...............    0
0.20	c 	variables.............    0
0.20	c 	predicates............    0
0.20	c 	constraints........... 0.07
0.20	c Allocating memory
0.20	c 
0.20	c time limit = -1
0.20	c heuristic = dom/wdeg
0.20	c restart policy = Geometric increment
0.20	c restart base = 666
0.20	c restart factor = 1.33
0.20	c 
0.20	c Solving
0.20	c
0.36	s SATISFIABLE
0.36	v 1112 0 28 782 242 187 778 46 172 45 76 1098 45 1 849 328 661 1105 0 11 847 447 592 465 1 1088 1108 45 474 76 71 586 1088 474 0 2 1110 1009 180 1 174 465 10 15 1111 1057 1105 0 592 4 936 1097 0 14 45 661 629 182 11 10 1089 31 354 11 1089 0 400 629 12 2 1010 1105 11 12 1110 174 846 1111 31 0 187 354 1110 0 182 242 1106 71 936 447 1 1094 400 579 847 1108 0 1100 1096 890 846
0.36	d          SAT      1460 BTS      0.22 s

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node40/watcher-237287-1168347308 -o ROOT/results/node40/solver-237287-1168347308 -C 1800 -M 900 /tmp/evaluation/237287-1168347308/tramontane/bin/solver /tmp/evaluation/237287-1168347308/unknown.xml -res geom -f 3 -v 1 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 2.01 2.03 1.95 5/81 32275
/proc/meminfo: memFree=1514632/2055920 swapFree=4192812/4192956
[pid=32274] ppid=32272 vsize=18540 CPUtime=0
/proc/32274/stat : 32274 (runsolver) R 32272 32274 31804 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 183130136 18984960 279 18446744073709551615 4194304 4267372 548682068992 18446744073709551615 264519609639 0 0 4096 24578 0 0 0 17 1 0 0
/proc/32274/statm: 4635 279 244 17 0 2626 0

[startup+0.108461 s]
/proc/loadavg: 2.01 2.03 1.95 5/81 32275
/proc/meminfo: memFree=1514632/2055920 swapFree=4192812/4192956
[pid=32274] ppid=32272 vsize=15120 CPUtime=0.09
/proc/32274/stat : 32274 (solver) R 32272 32274 31804 0 -1 4194304 2888 0 0 0 8 1 0 0 18 0 1 0 183130136 15482880 2856 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 8205491 0 0 4096 0 0 0 0 17 1 0 0
/proc/32274/statm: 3780 2856 717 92 0 2124 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15120

Child status: 0
Real time (s): 0.378938
CPU time (s): 0.369943
CPU user time (s): 0.343947
CPU system time (s): 0.025996
CPU usage (%): 97.6263
Max. virtual memory (cumulated for all children) (KiB): 23456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.343947
system time used= 0.025996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4991
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 12
involuntary context switches= 18

runsolver used 0.005999 s user time and 0.004999 s system time

The end

Launcher Data (download as text)

Begin job on node40 on Tue Jan  9 12:55:08 UTC 2007


IDJOB= 237287
IDBENCH= 6911
FILE ID= node40/237287-1168347308

PBS_JOBID= 3503615

Free space on /tmp= 66551 MiB

BENCH NAME= HOME/pub/bench/CPAI06/os-gp/gp10-09-1112.xml
COMMAND LINE= /tmp/evaluation/237287-1168347308/tramontane/bin/solver /tmp/evaluation/237287-1168347308/unknown.xml -res geom -f 3 -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-237287-1168347308 -o ROOT/results/node40/solver-237287-1168347308 -C 1800 -M 900  /tmp/evaluation/237287-1168347308/tramontane/bin/solver /tmp/evaluation/237287-1168347308/unknown.xml -res geom -f 3 -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  06eaa40bf809ba3f654c85e42e55e982

RANDOM SEED= 18555420

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.239
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	: 5914.62
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		: 3000.239
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1515112 kB
Buffers:         19608 kB
Cached:          90620 kB
SwapCached:          0 kB
Active:         446292 kB
Inactive:        38132 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1515112 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3552 kB
Writeback:           0 kB
Mapped:         392312 kB
Slab:            41092 kB
Committed_AS:  4436212 kB
PageTables:       2548 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66551 MiB



End job on node40 on Tue Jan  9 12:55:09 UTC 2007