Trace number 233869

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 2006-12-04UNSAT 0.562914 0.570337

General information on the benchmark

Nametaillard/
os-taillard-7/os-taillard-7-95-2.xml
MD5SUM570f4f3187c9b9f5121439d9a96fe2a4
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.099984
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables49
Number of constraints294
Maximum constraint arity2
Maximum domain size441
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)

0.10	c 
0.10	c Parsing xml file
0.10	c 	domains...............    0
0.10	c 	variables.............    0
0.10	c 	predicates............    0
0.10	c 	constraints........... 0.02
0.10	c Allocating memory
0.10	c 
0.10	c time limit = -1
0.10	c heuristic = dom/wdeg
0.10	c restart policy = No restart
0.10	c 
0.10	c Solving
0.10	c
0.56	s UNSATISFIABLE
0.56	d        UNSAT     17241 BTS      0.52 s

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node50/watcher-233869-1168328799 -o ROOT/results/node50/solver-233869-1168328799 -C 1800 -M 900 /tmp/evaluation/233869-1168328799/mistral/bin/solver /tmp/evaluation/233869-1168328799/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 1.47 1.17 5/85 5940
/proc/meminfo: memFree=1000480/2055920 swapFree=4191892/4192956
[pid=5939] ppid=5937 vsize=540 CPUtime=0
/proc/5939/stat : 5939 (solver) R 5937 5939 4967 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 181278524 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 7918372 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/5939/statm: 135 26 21 92 0 18 0

[startup+0.104318 s]
/proc/loadavg: 2.03 1.47 1.17 5/85 5940
/proc/meminfo: memFree=1000480/2055920 swapFree=4191892/4192956
[pid=5939] ppid=5937 vsize=8500 CPUtime=0.09
/proc/5939/stat : 5939 (solver) R 5937 5939 4967 0 -1 4194304 1202 0 0 0 9 0 0 0 19 0 1 0 181278524 8704000 1170 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134785568 0 0 4096 0 0 0 0 17 1 0 0
/proc/5939/statm: 2125 1170 716 92 0 469 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8500

[startup+0.512377 s]
/proc/loadavg: 2.03 1.47 1.17 5/85 5940
/proc/meminfo: memFree=1000480/2055920 swapFree=4191892/4192956
[pid=5939] ppid=5937 vsize=8500 CPUtime=0.5
/proc/5939/stat : 5939 (solver) R 5937 5939 4967 0 -1 4194304 1202 0 0 0 50 0 0 0 23 0 1 0 181278524 8704000 1170 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134727366 0 0 4096 0 0 0 0 17 1 0 0
/proc/5939/statm: 2125 1170 716 92 0 469 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 8500

Child status: 0
Real time (s): 0.570337
CPU time (s): 0.562914
CPU user time (s): 0.557915
CPU system time (s): 0.004999
CPU usage (%): 98.6985
Max. virtual memory (cumulated for all children) (KiB): 8500

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.557915
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= 1213
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= 17

runsolver used 0.005999 s user time and 0.003999 s system time

The end

Launcher Data (download as text)

Begin job on node50 on Tue Jan  9 07:46:40 UTC 2007


IDJOB= 233869
IDBENCH= 6642
FILE ID= node50/233869-1168328799

PBS_JOBID= 3503250

Free space on /tmp= 66557 MiB

BENCH NAME= HOME/pub/bench/CPAI06/taillard/os-taillard-7/os-taillard-7-95-2.xml
COMMAND LINE= /tmp/evaluation/233869-1168328799/mistral/bin/solver /tmp/evaluation/233869-1168328799/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node50/watcher-233869-1168328799 -o ROOT/results/node50/solver-233869-1168328799 -C 1800 -M 900  /tmp/evaluation/233869-1168328799/mistral/bin/solver /tmp/evaluation/233869-1168328799/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  570f4f3187c9b9f5121439d9a96fe2a4

RANDOM SEED= 997922925

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		: 3000.263
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	: 5931.00
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		: 3000.263
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:       1000960 kB
Buffers:         72080 kB
Cached:         400192 kB
SwapCached:        396 kB
Active:         689412 kB
Inactive:       307236 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1000960 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:            3000 kB
Writeback:           0 kB
Mapped:         543700 kB
Slab:            42712 kB
Committed_AS:  5222148 kB
PageTables:       2880 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= 66557 MiB



End job on node50 on Tue Jan  9 07:46:40 UTC 2007