Trace number 1081662

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
casper zaoUNSAT 10.3064 10.4096

DiagnosticValue
CHECKS355527

General information on the benchmark

Namecsp/knights/
normalized-knights-15-9.xml
MD5SUM4ca04c2b4cff6eaa31c1b1eda93cff1e
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 benchmark0.547916
Satisfiable
(Un)Satisfiability was proved
Number of variables9
Number of constraints36
Maximum constraint arity2
Maximum domain size225
Number of constraints which are defined in extension0
Number of constraints which are defined in intension36
Global constraints used (with number of constraints)

Solver Data (download as text)

0.00/0.21	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.00/0.21	c Parsing = 1
0.00/0.21	c Building = 1
9.50/9.65	c [ NumberOfVariables = 9 ]
9.50/9.65	c [ NumberOfConstraints = 36 ]
9.50/9.65	c [ SizeOfSearchSpace(log2) = 70.324 ]
9.50/9.65	c SymmetrySearch = 1
9.50/9.65	c [ Found 18 symmetries ]
9.50/9.65	c InitialPropagation = 1
9.50/9.65	c [ SizeOfSearchSpace(log2) = 70.2662 ]
9.50/9.65	c InitialSAC = 1
9.50/9.65	c [ SizeOfSearchSpace(log2) = 70.2662 ]
9.50/9.65	c Search(SampleFF) : 
10.29/10.40	c [ Sampling domwdeg ]
10.29/10.40	c Search(SampleFF) = 0
10.29/10.40	s UNSATISFIABLE
10.29/10.40	d CHECKS 355527
10.29/10.40	c [ TotalFails = 4438 ]
10.29/10.40	c [ NumberOfRestarts = 3 ]
10.29/10.40	c [ TotalTime = 9.69907 secs ]

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1081662-1215218228/watcher-1081662-1215218228 -o /tmp/evaluation-result-1081662-1215218228/solver-1081662-1215218228 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1081662-1215218228.xml 213128425 

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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 16741
/proc/meminfo: memFree=1793160/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=18572 CPUtime=0
/proc/16741/stat : 16741 (runsolver) R 16739 16741 13008 0 -1 4194368 15 0 0 0 0 0 0 0 22 0 1 0 2000795495 19017728 292 996147200 4194304 4296836 548682068480 18446744073709551615 234211568935 0 0 4096 24578 0 0 0 17 1 0 0
/proc/16741/statm: 4643 292 257 25 0 2626 0

[startup+0.21896 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 16741
/proc/meminfo: memFree=1793160/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=286712 CPUtime=0.2
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 601 0 0 0 20 0 0 0 19 0 1 0 2000795495 293593088 560 996147200 134512640 135477443 4294956224 18446744073709551615 134962000 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 71678 560 460 235 0 70379 0
Current children cumulated CPU time (s) 0.2
Current children cumulated vsize (KiB) 286712

[startup+0.301859 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 16741
/proc/meminfo: memFree=1793160/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=286712 CPUtime=0.28
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 606 0 0 0 28 0 0 0 19 0 1 0 2000795495 293593088 565 996147200 134512640 135477443 4294956224 18446744073709551615 134942067 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 71678 565 460 235 0 70379 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 286712

[startup+0.401879 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 16741
/proc/meminfo: memFree=1793160/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=286712 CPUtime=0.38
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 611 0 0 0 38 0 0 0 20 0 1 0 2000795495 293593088 570 996147200 134512640 135477443 4294956224 18446744073709551615 134585521 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 71678 570 460 235 0 70379 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 286712

[startup+0.701941 s]
/proc/loadavg: 2.00 2.00 2.00 4/73 16741
/proc/meminfo: memFree=1793160/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=286712 CPUtime=0.68
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 624 0 0 0 68 0 0 0 23 0 1 0 2000795495 293593088 583 996147200 134512640 135477443 4294956224 18446744073709551615 134919309 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 71678 583 460 235 0 70379 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 286712

[startup+1.50111 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 16742
/proc/meminfo: memFree=1792576/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=286712 CPUtime=1.47
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 701 0 0 0 147 0 0 0 25 0 1 0 2000795495 293593088 571 996147200 134512640 135477443 4294956224 18446744073709551615 134585553 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 71678 571 460 235 0 70379 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 286712

[startup+3.10144 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 16742
/proc/meminfo: memFree=1792448/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=286712 CPUtime=3.06
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 802 0 0 0 306 0 0 0 25 0 1 0 2000795495 293593088 589 996147200 134512640 135477443 4294956224 18446744073709551615 134585538 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 71678 589 460 235 0 70379 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 286712

[startup+6.3011 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 16742
/proc/meminfo: memFree=1792384/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=286712 CPUtime=6.23
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 1068 0 0 0 623 0 0 0 25 0 1 0 2000795495 293593088 591 996147200 134512640 135477443 4294956224 18446744073709551615 134586797 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 71678 591 460 235 0 70379 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 286712

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

[startup+6.50114 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 16742
/proc/meminfo: memFree=1792384/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=286712 CPUtime=6.43
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 1111 0 0 0 643 0 0 0 25 0 1 0 2000795495 293593088 548 996147200 134512640 135477443 4294956224 18446744073709551615 134940872 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 71678 548 460 235 0 70379 0
Current children cumulated CPU time (s) 6.43
Current children cumulated vsize (KiB) 286712

[startup+8.10147 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 16742
/proc/meminfo: memFree=1792448/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=286712 CPUtime=8.01
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 1234 0 0 0 801 0 0 0 25 0 1 0 2000795495 293593088 586 996147200 134512640 135477443 4294956224 18446744073709551615 135270207 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 71678 586 460 235 0 70379 0
Current children cumulated CPU time (s) 8.01
Current children cumulated vsize (KiB) 286712

[startup+9.70281 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 16742
/proc/meminfo: memFree=1792448/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=99332 CPUtime=9.6
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 1427 0 0 0 960 0 0 0 25 0 1 0 2000795495 101715968 613 996147200 134512640 135477443 4294956224 18446744073709551615 134942065 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 24833 613 510 235 0 23534 0
Current children cumulated CPU time (s) 9.6
Current children cumulated vsize (KiB) 99332

[startup+10.1069 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 16742
/proc/meminfo: memFree=1792448/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=99332 CPUtime=10
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 1451 0 0 0 1000 0 0 0 25 0 1 0 2000795495 101715968 637 996147200 134512640 135477443 4294956224 18446744073709551615 134673665 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 24833 637 511 235 0 23534 0
Current children cumulated CPU time (s) 10
Current children cumulated vsize (KiB) 99332

[startup+10.3019 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 16742
/proc/meminfo: memFree=1792448/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=99332 CPUtime=10.19
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 1455 0 0 0 1019 0 0 0 25 0 1 0 2000795495 101715968 641 996147200 134512640 135477443 4294956224 18446744073709551615 134585563 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 24833 641 511 235 0 23534 0
Current children cumulated CPU time (s) 10.19
Current children cumulated vsize (KiB) 99332

[startup+10.4019 s]
/proc/loadavg: 2.00 2.00 2.00 3/74 16742
/proc/meminfo: memFree=1792448/2055920 swapFree=4179680/4192956
[pid=16741] ppid=16739 vsize=99332 CPUtime=10.29
/proc/16741/stat : 16741 (casperzao) R 16739 16741 13008 0 -1 4194304 1463 0 0 0 1029 0 0 0 25 0 1 0 2000795495 101715968 649 996147200 134512640 135477443 4294956224 18446744073709551615 134919610 0 0 4096 0 0 0 0 17 1 0 0
/proc/16741/statm: 24833 649 511 235 0 23534 0
Current children cumulated CPU time (s) 10.29
Current children cumulated vsize (KiB) 99332

Child status: 0
Real time (s): 10.4096
CPU time (s): 10.3064
CPU user time (s): 10.2974
CPU system time (s): 0.008998
CPU usage (%): 99.0091
Max. virtual memory (cumulated for all children) (KiB): 286712

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 10.2974
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1466
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= 16
involuntary context switches= 252

runsolver used 0.019996 second user time and 0.037994 second system time

The end

Launcher Data (download as text)

Begin job on node54 at 2008-07-05 02:37:08
IDJOB=1081662
IDBENCH=57121
IDSOLVER=361
FILE ID=node54/1081662-1215218228
PBS_JOBID= 7881665
Free space on /tmp= 66528 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/knights/normalized-knights-15-9.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1081662-1215218228/watcher-1081662-1215218228 -o /tmp/evaluation-result-1081662-1215218228/solver-1081662-1215218228 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1081662-1215218228.xml 213128425 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 4ca04c2b4cff6eaa31c1b1eda93cff1e
RANDOM SEED=213128425

node54.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		: 3000.279
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		: 3000.279
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:       1793640 kB
Buffers:         30240 kB
Cached:         140096 kB
SwapCached:       6328 kB
Active:         168364 kB
Inactive:        38200 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1793640 kB
SwapTotal:     4192956 kB
SwapFree:      4179680 kB
Dirty:            3284 kB
Writeback:           0 kB
Mapped:          43988 kB
Slab:            41044 kB
Committed_AS:  3921960 kB
PageTables:       1740 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66524 MiB
End job on node54 at 2008-07-05 02:37:19