Trace number 2065060

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-restart 0.3.2UNSAT 1.71874 1.73514

DiagnosticValue
ASSIGNMENTS444

General information on the benchmark

Namecsp/fischer/
normalized-fischer-8-2-fair.xml
MD5SUM3e56d59c7d80b7d2709032b217c8cabc
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.15782
Satisfiable
(Un)Satisfiability was proved
Number of variables4683
Number of constraints4420
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension4420
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c has big domains
0.00/0.01	c big-domain mode
0.17/0.21	c Seed is 1808642407
0.17/0.21	c Constructing HOME/instance-2065060-1247703307.xml  with 6136 constraints
0.17/0.26	c Solving 444 backtracks 5 restarts
1.67/1.73	s UNSATISFIABLE
1.67/1.73	d ASSIGNMENTS 444

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-2065060-1247703307/watcher-2065060-1247703307 -o /tmp/evaluation-result-2065060-1247703307/solver-2065060-1247703307 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1808642407 HOME/instance-2065060-1247703307.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: 2.25 2.11 1.92 4/72 12753
/proc/meminfo: memFree=1381472/2055920 swapFree=4192812/4192956
[pid=12753] ppid=12751 vsize=5356 CPUtime=0
/proc/12753/stat : 12753 (pcssolve) R 12751 12753 11915 0 -1 4194304 290 0 0 0 0 0 0 0 21 0 1 0 57022440 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 209135921823 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12753/statm: 1339 241 200 169 0 50 0
[pid=12754] ppid=12753 vsize=3676 CPUtime=0
/proc/12754/stat : 12754 (fgrep) R 12753 12753 11915 0 -1 4194304 143 0 0 0 0 0 0 0 22 0 1 0 57022441 3764224 110 996147200 4194304 4274172 548682068976 18446744073709551615 209136091218 0 0 4096 0 0 0 0 17 1 0 0
/proc/12754/statm: 919 110 85 19 0 43 0
[pid=12755] ppid=12753 vsize=5356 CPUtime=0
/proc/12755/stat : 12755 (pcssolve) R 12753 12753 11915 0 -1 4194368 0 0 0 0 0 0 0 0 21 0 1 0 57022441 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 209135921823 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12755/statm: 1339 241 200 169 0 50 0

[startup+0.101591 s]
/proc/loadavg: 2.25 2.11 1.92 4/72 12753
/proc/meminfo: memFree=1381472/2055920 swapFree=4192812/4192956
[pid=12753] ppid=12751 vsize=6672 CPUtime=0.08
/proc/12753/stat : 12753 (pcs.big) R 12751 12753 11915 0 -1 4194304 1346 657 0 0 8 0 0 0 18 0 1 0 57022440 6832128 890 996147200 134512640 135215973 4294956304 18446744073709551615 134763506 0 0 4096 0 0 0 0 17 1 0 0
/proc/12753/statm: 1668 890 387 171 0 593 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6672

[startup+0.201595 s]
/proc/loadavg: 2.25 2.11 1.92 4/72 12753
/proc/meminfo: memFree=1381472/2055920 swapFree=4192812/4192956
[pid=12753] ppid=12751 vsize=7184 CPUtime=0.17
/proc/12753/stat : 12753 (pcs.big) R 12751 12753 11915 0 -1 4194304 1493 657 0 0 17 0 0 0 18 0 1 0 57022440 7356416 1004 996147200 134512640 135215973 4294956304 18446744073709551615 134763550 0 0 4096 0 0 0 0 17 1 0 0
/proc/12753/statm: 1796 1004 389 171 0 721 0
Current children cumulated CPU time (s) 0.17
Current children cumulated vsize (KiB) 7184

[startup+0.301611 s]
/proc/loadavg: 2.25 2.11 1.92 4/72 12753
/proc/meminfo: memFree=1381472/2055920 swapFree=4192812/4192956
[pid=12753] ppid=12751 vsize=8468 CPUtime=0.27
/proc/12753/stat : 12753 (pcs.big) R 12751 12753 11915 0 -1 4194304 1936 657 0 0 27 0 0 0 19 0 1 0 57022440 8671232 1390 996147200 134512640 135215973 4294956304 18446744073709551615 134599830 0 0 4096 0 0 0 0 17 1 0 0
/proc/12753/statm: 2117 1390 406 171 0 1042 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 8468

[startup+0.701645 s]
/proc/loadavg: 2.25 2.11 1.92 4/72 12753
/proc/meminfo: memFree=1381472/2055920 swapFree=4192812/4192956
[pid=12753] ppid=12751 vsize=9484 CPUtime=0.68
/proc/12753/stat : 12753 (pcs.big) R 12751 12753 11915 0 -1 4194304 2330 657 0 0 67 1 0 0 23 0 1 0 57022440 9711616 1626 996147200 134512640 135215973 4294956304 18446744073709551615 134592229 0 0 4096 0 0 0 0 17 1 0 0
/proc/12753/statm: 2371 1626 409 171 0 1296 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 9484

[startup+1.50171 s]
/proc/loadavg: 2.25 2.11 1.92 3/73 12758
/proc/meminfo: memFree=1374616/2055920 swapFree=4192812/4192956
[pid=12753] ppid=12751 vsize=10844 CPUtime=1.47
/proc/12753/stat : 12753 (pcs.big) R 12751 12753 11915 0 -1 4194304 2748 657 0 0 146 1 0 0 25 0 1 0 57022440 11104256 1835 996147200 134512640 135215973 4294956304 18446744073709551615 4158853402 0 0 4096 0 0 0 0 17 1 0 0
/proc/12753/statm: 2711 1835 409 171 0 1636 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 10844

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

[startup+1.60172 s]
/proc/loadavg: 2.25 2.11 1.92 3/73 12758
/proc/meminfo: memFree=1374616/2055920 swapFree=4192812/4192956
[pid=12753] ppid=12751 vsize=10988 CPUtime=1.57
/proc/12753/stat : 12753 (pcs.big) R 12751 12753 11915 0 -1 4194304 2811 657 0 0 156 1 0 0 25 0 1 0 57022440 11251712 1898 996147200 134512640 135215973 4294956304 18446744073709551615 134592478 0 0 4096 0 0 0 0 17 1 0 0
/proc/12753/statm: 2747 1898 409 171 0 1672 0
Current children cumulated CPU time (s) 1.57
Current children cumulated vsize (KiB) 10988

[startup+1.70173 s]
/proc/loadavg: 2.25 2.11 1.92 3/73 12758
/proc/meminfo: memFree=1374616/2055920 swapFree=4192812/4192956
[pid=12753] ppid=12751 vsize=10988 CPUtime=1.67
/proc/12753/stat : 12753 (pcs.big) R 12751 12753 11915 0 -1 4194304 2892 657 0 0 166 1 0 0 25 0 1 0 57022440 11251712 1979 996147200 134512640 135215973 4294956304 18446744073709551615 134532952 0 0 4096 0 0 0 0 17 1 0 0
/proc/12753/statm: 2747 1979 409 171 0 1672 0
Current children cumulated CPU time (s) 1.67
Current children cumulated vsize (KiB) 10988

Child status: 0
Real time (s): 1.73514
CPU time (s): 1.71874
CPU user time (s): 1.69474
CPU system time (s): 0.023996
CPU usage (%): 99.0546
Max. virtual memory (cumulated for all children) (KiB): 10988

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.69474
system time used= 0.023996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3579
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= 19
involuntary context switches= 53

runsolver used 0.006998 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node41 at 2009-07-16 02:15:07
IDJOB=2065060
IDBENCH=54271
IDSOLVER=734
FILE ID=node41/2065060-1247703307
PBS_JOBID= 9521228
Free space on /tmp= 65788 MiB

SOLVER NAME= pcs-restart 0.2.restart
BENCH NAME= CPAI08/csp/fischer/normalized-fischer-8-2-fair.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2065060-1247703307/watcher-2065060-1247703307 -o /tmp/evaluation-result-2065060-1247703307/solver-2065060-1247703307 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1808642407 HOME/instance-2065060-1247703307.xml

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

MD5SUM BENCH= 3e56d59c7d80b7d2709032b217c8cabc
RANDOM SEED=1808642407

node41.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		: 3000.212
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		: 3000.212
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:       1381888 kB
Buffers:         58752 kB
Cached:         388892 kB
SwapCached:          0 kB
Active:         190572 kB
Inactive:       405760 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1381888 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2484 kB
Writeback:           0 kB
Mapped:         160220 kB
Slab:            62996 kB
Committed_AS:   586484 kB
PageTables:       1952 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= 65788 MiB
End job on node41 at 2009-07-16 02:15:09