Trace number 204402

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
buggy_2_5 2007-01-08UNSAT 2.04969 2.07001

General information on the benchmark

Namefapp/fapp16-20/fapp20/
fapp20-0420-4.xml
MD5SUMf874a5ab86ad025cdd8a1aac040ad57b
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 benchmark2.04969
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables420
Number of constraints4737
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4737
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c solution file
c 
c 

UNSAT

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/node13/watcher-204402-1168293438 -o ROOT/results/node13/solver-204402-1168293438 -C 1800 -M 900 /tmp/evaluation/204402-1168293438/solver /tmp/evaluation/204402-1168293438/unknown 1800 

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: 1.28 1.44 1.21 5/82 551
/proc/meminfo: memFree=1516360/2055920 swapFree=4192812/4192956
[pid=550] ppid=546 vsize=5352 CPUtime=0
/proc/550/stat : 550 (solver) R 546 550 31649 0 -1 4194304 280 0 0 0 0 0 0 0 19 0 1 0 177739092 5480448 231 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 269757246111 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/550/statm: 1338 231 193 169 0 49 0
[pid=552] ppid=550 vsize=0 CPUtime=0
/proc/552/stat : 552 (solver) Z 550 550 31649 0 -1 4194380 26 0 0 0 0 0 0 0 15 0 1 0 177739093 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 65538 18446744071563351923 0 0 17 0 0 0
/proc/552/statm: 0 0 0 0 0 0 0
[pid=553] ppid=550 vsize=5352 CPUtime=0
/proc/553/stat : 553 (solver) R 550 550 31649 0 -1 4194368 0 0 0 0 0 0 0 0 19 0 1 0 177739093 5480448 231 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 269757246111 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/553/statm: 1338 231 193 169 0 49 0

[startup+0.104128 s]
/proc/loadavg: 1.28 1.44 1.21 5/82 551
/proc/meminfo: memFree=1516360/2055920 swapFree=4192812/4192956
[pid=550] ppid=546 vsize=5352 CPUtime=0.08
/proc/550/stat : 550 (solver) S 546 550 31649 0 -1 4194304 376 2312 0 0 0 0 6 2 16 0 1 0 177739092 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 269757244228 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/550/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5352

[startup+0.51618 s]
/proc/loadavg: 1.28 1.44 1.21 5/82 551
/proc/meminfo: memFree=1516360/2055920 swapFree=4192812/4192956
[pid=550] ppid=546 vsize=5352 CPUtime=0.08
/proc/550/stat : 550 (solver) S 546 550 31649 0 -1 4194304 376 2312 0 0 0 0 6 2 16 0 1 0 177739092 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 269757244228 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/550/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5352

[startup+1.3443 s]
/proc/loadavg: 1.28 1.44 1.21 3/88 593
/proc/meminfo: memFree=1452888/2055920 swapFree=4192812/4192956
[pid=550] ppid=546 vsize=5352 CPUtime=0.08
/proc/550/stat : 550 (solver) S 546 550 31649 0 -1 4194304 376 2312 0 0 0 0 6 2 16 0 1 0 177739092 5480448 242 18446744073709551615 4194304 4889804 548682069328 18446744073709551615 269757244228 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/550/statm: 1338 242 203 169 0 49 0
[pid=586] ppid=550 vsize=28660 CPUtime=1.22
/proc/586/stat : 586 (bordewijk) R 550 550 31649 0 -1 4194304 7400 0 0 0 49 73 0 0 18 0 1 0 177739102 29347840 6537 18446744073709551615 134512640 134912576 4294956768 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/586/statm: 7165 6537 217 97 0 6446 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 34012

Child status: 0
Real time (s): 2.07001
CPU time (s): 2.04969
CPU user time (s): 0.881865
CPU system time (s): 1.16782
CPU usage (%): 99.0184
Max. virtual memory (cumulated for all children) (KiB): 34012

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.881865
system time used= 1.16782
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13016
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= 172
involuntary context switches= 203

runsolver used 0.003999 s user time and 0.008998 s system time

The end

Launcher Data (download as text)

Begin job on node13 on Mon Jan  8 21:57:21 UTC 2007


IDJOB= 204402
IDBENCH= 4019
FILE ID= node13/204402-1168293438

PBS_JOBID= 3501807

Free space on /tmp= 66307 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp16-20/fapp20/fapp20-0420-4.xml
COMMAND LINE= /tmp/evaluation/204402-1168293438/solver /tmp/evaluation/204402-1168293438/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-204402-1168293438 -o ROOT/results/node13/solver-204402-1168293438 -C 1800 -M 900  /tmp/evaluation/204402-1168293438/solver /tmp/evaluation/204402-1168293438/unknown 1800

META MD5SUM SOLVER= 6c84d9851726bfff2e2bc2bb5530c705
MD5SUM BENCH=  f874a5ab86ad025cdd8a1aac040ad57b

RANDOM SEED= 835792061

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:       1516440 kB
Buffers:         74376 kB
Cached:         353480 kB
SwapCached:          0 kB
Active:         254644 kB
Inactive:       223192 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1516440 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           22860 kB
Writeback:           0 kB
Mapped:          68920 kB
Slab:            46436 kB
Committed_AS:  4775196 kB
PageTables:       2324 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= 66300 MiB



End job on node13 on Mon Jan  8 21:57:24 UTC 2007