Trace number 233766

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
Mistral 2006-12-04SAT 5.2582 5.3054

General information on the benchmark

Nametaillard/os-taillard-7/
os-taillard-7-100-3.xml
MD5SUMd6ca4b1b3f098f11e274d778f12143c0
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 benchmark1.79
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size460
Number of constraints which are defined in extension0
Number of constraints which are defined in intension294
Global constraints used (with number of constraints)

Solver Data (download as text)

0.11	c 
0.11	c Parsing xml file
0.11	c 	domains...............    0
0.11	c 	variables.............    0
0.11	c 	predicates............    0
0.11	c 	constraints........... 0.02
0.11	c Allocating memory
0.11	c 
0.11	c time limit = -1
0.11	c heuristic = dom/wdeg
0.11	c restart policy = No restart
0.11	c 
0.11	c Solving
0.11	c
5.30	s SATISFIABLE
5.30	v 303 95 262 0 164 389 214 382 200 298 124 27 335 251 0 258 95 202 124 397 335 214 113 262 397 312 82 0 250 173 125 382 312 27 0 457 371 319 256 214 164 82 378 296 256 202 172 82 0
5.30	d          SAT    159230 BTS       5.2 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/node13/watcher-233766-1168327978 -o ROOT/results/node13/solver-233766-1168327978 -C 1800 -M 900 /tmp/evaluation/233766-1168327978/mistral/bin/solver /tmp/evaluation/233766-1168327978/unknown.xml -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: 2.03 2.04 2.00 5/86 13600
/proc/meminfo: memFree=1060696/2055920 swapFree=4192812/4192956
[pid=13599] ppid=13597 vsize=540 CPUtime=0
/proc/13599/stat : 13599 (solver) R 13597 13599 12909 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 181192837 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 11879204 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/13599/statm: 135 26 21 92 0 18 0

[startup+0.104916 s]
/proc/loadavg: 2.03 2.04 2.00 5/86 13600
/proc/meminfo: memFree=1060696/2055920 swapFree=4192812/4192956
[pid=13599] ppid=13597 vsize=8500 CPUtime=0.09
/proc/13599/stat : 13599 (solver) R 13597 13599 12909 0 -1 4194304 1209 0 0 0 9 0 0 0 19 0 1 0 181192837 8704000 1177 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727402 0 0 4096 0 0 0 0 17 1 0 0
/proc/13599/statm: 2125 1177 716 92 0 469 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8500

[startup+0.512967 s]
/proc/loadavg: 2.03 2.04 2.00 5/86 13600
/proc/meminfo: memFree=1060696/2055920 swapFree=4192812/4192956
[pid=13599] ppid=13597 vsize=8504 CPUtime=0.5
/proc/13599/stat : 13599 (solver) R 13597 13599 12909 0 -1 4194304 1210 0 0 0 50 0 0 0 24 0 1 0 181192837 8708096 1178 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727341 0 0 4096 0 0 0 0 17 1 0 0
/proc/13599/statm: 2126 1178 716 92 0 470 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 8504

[startup+1.33408 s]
/proc/loadavg: 2.03 2.04 2.00 3/86 13600
/proc/meminfo: memFree=1058776/2055920 swapFree=4192812/4192956
[pid=13599] ppid=13597 vsize=8504 CPUtime=1.31
/proc/13599/stat : 13599 (solver) R 13597 13599 12909 0 -1 4194304 1210 0 0 0 131 0 0 0 25 0 1 0 181192837 8708096 1178 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727331 0 0 4096 0 0 0 0 17 1 0 0
/proc/13599/statm: 2126 1178 716 92 0 470 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 8504

[startup+2.97129 s]
/proc/loadavg: 2.03 2.04 2.00 4/86 13600
/proc/meminfo: memFree=1058776/2055920 swapFree=4192812/4192956
[pid=13599] ppid=13597 vsize=8504 CPUtime=2.93
/proc/13599/stat : 13599 (solver) R 13597 13599 12909 0 -1 4194304 1210 0 0 0 293 0 0 0 25 0 1 0 181192837 8708096 1178 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727345 0 0 4096 0 0 0 0 17 1 0 0
/proc/13599/statm: 2126 1178 716 92 0 470 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 8504

Child status: 0
Real time (s): 5.3054
CPU time (s): 5.2582
CPU user time (s): 5.2532
CPU system time (s): 0.004999
CPU usage (%): 99.1104
Max. virtual memory (cumulated for all children) (KiB): 8504

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.2532
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1222
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= 13
involuntary context switches= 215

runsolver used 0.004999 s user time and 0.020996 s system time

The end

Launcher Data (download as text)

Begin job on node13 on Tue Jan  9 07:32:58 UTC 2007


IDJOB= 233766
IDBENCH= 6631
FILE ID= node13/233766-1168327978

PBS_JOBID= 3502993

Free space on /tmp= 66554 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-7/os-taillard-7-100-3.xml
COMMAND LINE= /tmp/evaluation/233766-1168327978/mistral/bin/solver /tmp/evaluation/233766-1168327978/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-233766-1168327978 -o ROOT/results/node13/solver-233766-1168327978 -C 1800 -M 900  /tmp/evaluation/233766-1168327978/mistral/bin/solver /tmp/evaluation/233766-1168327978/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  d6ca4b1b3f098f11e274d778f12143c0

RANDOM SEED= 44720804

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		: 3000.247
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		: 3000.247
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:       1061176 kB
Buffers:        102596 kB
Cached:         579716 kB
SwapCached:          0 kB
Active:         563560 kB
Inactive:       349692 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1061176 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3020 kB
Writeback:           0 kB
Mapped:         250796 kB
Slab:            65972 kB
Committed_AS:  5164888 kB
PageTables:       2692 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= 66554 MiB



End job on node13 on Tue Jan  9 07:33:04 UTC 2007