Trace number 2075927

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
pcs 0.3.2UNSAT 1.53377 1.55218

DiagnosticValue
ASSIGNMENTS105

General information on the benchmark

Namecsp/modifiedRenault/
normalized-renault-mod-26_ext.xml
MD5SUMb293a6e9ef6ec50d1e7960cf9d2110e2
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.468928
Satisfiable
(Un)Satisfiability was proved
Number of variables111
Number of constraints159
Maximum constraint arity10
Maximum domain size42
Number of constraints which are defined in extension159
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.03	c has big domains
0.00/0.03	c big-domain mode
0.00/0.05	c Seed is 301106265
0.00/0.05	c Constructing HOME/instance-2075927-1247713982.xml  with 637 constraints
1.17/1.28	c Solving 105 backtracks 3 restarts
1.46/1.55	s UNSATISFIABLE
1.46/1.55	d ASSIGNMENTS 105

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2075927-1247713982/watcher-2075927-1247713982 -o /tmp/evaluation-result-2075927-1247713982/solver-2075927-1247713982 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 301106265 HOME/instance-2075927-1247713982.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 12578
/proc/meminfo: memFree=1553096/2055920 swapFree=4192812/4192956
[pid=12578] ppid=12576 vsize=5356 CPUtime=0
/proc/12578/stat : 12578 (pcssolve) R 12576 12578 11752 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 58464715 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 221236488863 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12578/statm: 1339 241 200 169 0 50 0
[pid=12579] ppid=12578 vsize=0 CPUtime=0
/proc/12579/stat : 12579 (pcssolve) R 12578 12578 11752 0 -1 4194368 22 0 0 0 0 0 0 0 22 0 1 0 58464716 0 0 996147200 0 0 0 18446744073709551615 221236489511 0 0 4096 0 0 0 0 17 1 0 0
/proc/12579/statm: 0 0 0 0 0 0 0
[pid=12580] ppid=12578 vsize=5356 CPUtime=0
/proc/12580/stat : 12580 (pcssolve) R 12578 12578 11752 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 58464716 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 221236488863 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12580/statm: 1339 241 200 169 0 50 0

[startup+0.223208 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 12578
/proc/meminfo: memFree=1553096/2055920 swapFree=4192812/4192956
[pid=12578] ppid=12576 vsize=6364 CPUtime=0.19
/proc/12578/stat : 12578 (pcs.big) R 12576 12578 11752 0 -1 4194304 1158 1661 0 0 18 0 0 1 19 0 1 0 58464715 6516736 789 996147200 134512640 135215973 4294956304 18446744073709551615 134597343 0 0 4096 0 0 0 0 17 1 0 0
/proc/12578/statm: 1591 789 385 171 0 516 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 6364

[startup+0.301215 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 12578
/proc/meminfo: memFree=1553096/2055920 swapFree=4192812/4192956
[pid=12578] ppid=12576 vsize=7632 CPUtime=0.27
/proc/12578/stat : 12578 (pcs.big) R 12576 12578 11752 0 -1 4194304 1325 1661 0 0 26 0 0 1 19 0 1 0 58464715 7815168 956 996147200 134512640 135215973 4294956304 18446744073709551615 134736036 0 0 4096 0 0 0 0 17 1 0 0
/proc/12578/statm: 1908 956 385 171 0 833 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 7632

[startup+0.401232 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 12578
/proc/meminfo: memFree=1553096/2055920 swapFree=4192812/4192956
[pid=12578] ppid=12576 vsize=8820 CPUtime=0.37
/proc/12578/stat : 12578 (pcs.big) R 12576 12578 11752 0 -1 4194304 1744 1661 0 0 35 1 0 1 20 0 1 0 58464715 9031680 1375 996147200 134512640 135215973 4294956304 18446744073709551615 8871381 0 0 4096 0 0 0 0 17 1 0 0
/proc/12578/statm: 2205 1375 385 171 0 1130 0
Current children cumulated CPU time (s) 0.37
Current children cumulated vsize (KiB) 8820

[startup+0.701262 s]
/proc/loadavg: 2.00 2.00 2.00 4/72 12578
/proc/meminfo: memFree=1553096/2055920 swapFree=4192812/4192956
[pid=12578] ppid=12576 vsize=11320 CPUtime=0.67
/proc/12578/stat : 12578 (pcs.big) R 12576 12578 11752 0 -1 4194304 2488 1661 0 0 65 1 0 1 23 0 1 0 58464715 11591680 1681 996147200 134512640 135215973 4294956304 18446744073709551615 135040440 0 0 4096 0 0 0 0 17 1 0 0
/proc/12578/statm: 2830 1681 385 171 0 1755 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 11320

[startup+1.50134 s]
/proc/loadavg: 2.00 2.00 2.00 3/73 12583
/proc/meminfo: memFree=1545280/2055920 swapFree=4192812/4192956
[pid=12578] ppid=12576 vsize=13080 CPUtime=1.46
/proc/12578/stat : 12578 (pcs.big) R 12576 12578 11752 0 -1 4194304 3479 1661 0 0 144 1 0 1 25 0 1 0 58464715 13393920 2447 996147200 134512640 135215973 4294956304 18446744073709551615 135026898 0 0 4096 0 0 0 0 17 1 0 0
/proc/12578/statm: 3270 2447 403 171 0 2195 0
Current children cumulated CPU time (s) 1.46
Current children cumulated vsize (KiB) 13080

Solver just ended. Dumping a history of the last processes samples

Child status: 0
Real time (s): 1.55218
CPU time (s): 1.53377
CPU user time (s): 1.50077
CPU system time (s): 0.032994
CPU usage (%): 98.8136
Max. virtual memory (cumulated for all children) (KiB): 15224

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.50077
system time used= 0.032994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5143
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= 18
involuntary context switches= 42

runsolver used 0.000999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node21 at 2009-07-16 05:13:02
IDJOB=2075927
IDBENCH=56362
IDSOLVER=733
FILE ID=node21/2075927-1247713982
PBS_JOBID= 9521405
Free space on /tmp= 66320 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/modifiedRenault/normalized-renault-mod-26_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2075927-1247713982/watcher-2075927-1247713982 -o /tmp/evaluation-result-2075927-1247713982/solver-2075927-1247713982 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 301106265 HOME/instance-2075927-1247713982.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= b293a6e9ef6ec50d1e7960cf9d2110e2
RANDOM SEED=301106265

node21.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.240
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		: 3000.240
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:       1553576 kB
Buffers:         65760 kB
Cached:         289744 kB
SwapCached:          0 kB
Active:         144104 kB
Inactive:       282492 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1553576 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4640 kB
Writeback:           0 kB
Mapped:          82524 kB
Slab:            60904 kB
Committed_AS:   525336 kB
PageTables:       1868 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= 66320 MiB
End job on node21 at 2009-07-16 05:13:04