Trace number 1081557

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 94.5886 94.9637

DiagnosticValue
CHECKS1187040

General information on the benchmark

Namecsp/knights/
normalized-knights-25-9.xml
MD5SUM2c2a315f78e02a36f39cc2b3c6ab1a62
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 benchmark2.45263
Satisfiable
(Un)Satisfiability was proved
Number of variables9
Number of constraints36
Maximum constraint arity2
Maximum domain size625
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)

0.00/0.00	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.00/0.00	c Parsing = 1
0.00/0.00	c Building = 1
92.13/92.53	c [ NumberOfVariables = 9 ]
92.13/92.53	c [ NumberOfConstraints = 36 ]
92.13/92.53	c [ SizeOfSearchSpace(log2) = 83.5894 ]
92.13/92.53	c SymmetrySearch = 1
92.13/92.53	c [ Found 18 symmetries ]
92.13/92.53	c InitialPropagation = 1
92.13/92.53	c [ SizeOfSearchSpace(log2) = 83.5686 ]
92.13/92.53	c InitialSAC = 0
94.52/94.96	s UNSATISFIABLE
94.52/94.96	d CHECKS 1187043
94.52/94.96	c [ TotalFails = 0 ]
94.52/94.96	c [ NumberOfRestarts = 0 ]
94.52/94.96	c [ TotalTime = 94.9368 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-1081557-1215217456/watcher-1081557-1215217456 -o /tmp/evaluation-result-1081557-1215217456/solver-1081557-1215217456 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1081557-1215217456.xml 90657337 

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: 1.92 1.98 1.99 4/73 28806
/proc/meminfo: memFree=1490856/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=5352 CPUtime=0
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 215 0 0 0 0 0 0 0 18 0 1 0 254733591 5480448 190 996147200 134512640 135477443 4294956224 18446744073709551615 5530773 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 1338 191 157 235 0 27 0

[startup+0.0122419 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 28806
/proc/meminfo: memFree=1490856/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=0
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 575 0 0 0 0 0 0 0 18 0 1 0 254733591 293593088 534 996147200 134512640 135477443 4294956224 18446744073709551615 134927459 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 534 460 235 0 70379 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 286712

[startup+0.10125 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 28806
/proc/meminfo: memFree=1490856/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=0.09
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 591 0 0 0 9 0 0 0 18 0 1 0 254733591 293593088 550 996147200 134512640 135477443 4294956224 18446744073709551615 134583601 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 550 460 235 0 70379 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 286712

[startup+0.301272 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 28806
/proc/meminfo: memFree=1490856/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=0.29
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 607 0 0 0 29 0 0 0 20 0 1 0 254733591 293593088 566 996147200 134512640 135477443 4294956224 18446744073709551615 134919102 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 566 460 235 0 70379 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 286712

[startup+0.701314 s]
/proc/loadavg: 1.92 1.98 1.99 4/73 28806
/proc/meminfo: memFree=1490856/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=0.69
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 628 0 0 0 69 0 0 0 24 0 1 0 254733591 293593088 587 996147200 134512640 135477443 4294956224 18446744073709551615 134919063 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 587 460 235 0 70379 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 286712

[startup+1.5014 s]
/proc/loadavg: 1.92 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1490208/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=1.49
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 651 0 0 0 149 0 0 0 25 0 1 0 254733591 293593088 610 996147200 134512640 135477443 4294956224 18446744073709551615 135270899 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 610 460 235 0 70379 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 286712

[startup+3.10157 s]
/proc/loadavg: 1.92 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489888/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=3.08
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 683 0 0 0 308 0 0 0 25 0 1 0 254733591 293593088 642 996147200 134512640 135477443 4294956224 18446744073709551615 135269552 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 642 460 235 0 70379 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 286712

[startup+6.30192 s]
/proc/loadavg: 1.93 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489632/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=6.27
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 723 0 0 0 627 0 0 0 25 0 1 0 254733591 293593088 682 996147200 134512640 135477443 4294956224 18446744073709551615 134940651 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 682 460 235 0 70379 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 286712

[startup+12.7016 s]
/proc/loadavg: 1.93 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489768/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=12.64
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 875 0 0 0 1264 0 0 0 25 0 1 0 254733591 293593088 628 996147200 134512640 135477443 4294956224 18446744073709551615 134586802 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 628 460 235 0 70379 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 286712

[startup+25.502 s]
/proc/loadavg: 1.95 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489576/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=25.39
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 1114 0 0 0 2539 0 0 0 25 0 1 0 254733591 293593088 667 996147200 134512640 135477443 4294956224 18446744073709551615 135269768 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 667 460 235 0 70379 0
Current children cumulated CPU time (s) 25.39
Current children cumulated vsize (KiB) 286712

[startup+51.1017 s]
/proc/loadavg: 1.96 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489384/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=50.89
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 1568 0 0 0 5088 1 0 0 25 0 1 0 254733591 293593088 710 996147200 134512640 135477443 4294956224 18446744073709551615 134919217 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 710 460 235 0 70379 0
Current children cumulated CPU time (s) 50.89
Current children cumulated vsize (KiB) 286712

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

[startup+76.7015 s]
/proc/loadavg: 1.97 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489384/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=76.39
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 2138 0 0 0 7638 1 0 0 25 0 1 0 254733591 293593088 671 996147200 134512640 135477443 4294956224 18446744073709551615 135269590 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 671 460 235 0 70379 0
Current children cumulated CPU time (s) 76.39
Current children cumulated vsize (KiB) 286712

[startup+83.1012 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489512/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=82.77
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 2265 0 0 0 8276 1 0 0 25 0 1 0 254733591 293593088 597 996147200 134512640 135477443 4294956224 18446744073709551615 134593876 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 597 460 235 0 70379 0
Current children cumulated CPU time (s) 82.77
Current children cumulated vsize (KiB) 286712

[startup+89.5019 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489064/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=286712 CPUtime=89.14
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 2370 0 0 0 8913 1 0 0 25 0 1 0 254733591 293593088 702 996147200 134512640 135477443 4294956224 18446744073709551615 134585526 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 71678 702 460 235 0 70379 0
Current children cumulated CPU time (s) 89.14
Current children cumulated vsize (KiB) 286712

[startup+92.7012 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489000/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=99332 CPUtime=92.32
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 2480 0 0 0 9231 1 0 0 25 0 1 0 254733591 101715968 613 996147200 134512640 135477443 4294956224 18446744073709551615 134673664 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 24833 613 508 235 0 23534 0
Current children cumulated CPU time (s) 92.32
Current children cumulated vsize (KiB) 99332

[startup+94.3014 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489384/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=99332 CPUtime=93.92
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 2596 0 0 0 9391 1 0 0 25 0 1 0 254733591 101715968 729 996147200 134512640 135477443 4294956224 18446744073709551615 134942065 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 24833 729 508 235 0 23534 0
Current children cumulated CPU time (s) 93.92
Current children cumulated vsize (KiB) 99332

[startup+94.7014 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489064/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=99332 CPUtime=94.32
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 2631 0 0 0 9431 1 0 0 25 0 1 0 254733591 101715968 764 996147200 134512640 135477443 4294956224 18446744073709551615 134585520 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 24833 764 508 235 0 23534 0
Current children cumulated CPU time (s) 94.32
Current children cumulated vsize (KiB) 99332

[startup+94.9015 s]
/proc/loadavg: 1.98 1.98 1.99 3/74 28807
/proc/meminfo: memFree=1489064/2055920 swapFree=4179588/4192956
[pid=28806] ppid=28804 vsize=99332 CPUtime=94.52
/proc/28806/stat : 28806 (casperzao) R 28804 28806 28028 0 -1 4194304 2654 0 0 0 9451 1 0 0 25 0 1 0 254733591 101715968 787 996147200 134512640 135477443 4294956224 18446744073709551615 134673670 0 0 4096 0 0 0 0 17 1 0 0
/proc/28806/statm: 24833 787 508 235 0 23534 0
Current children cumulated CPU time (s) 94.52
Current children cumulated vsize (KiB) 99332

Child status: 0
Real time (s): 94.9637
CPU time (s): 94.5886
CPU user time (s): 94.5726
CPU system time (s): 0.015997
CPU usage (%): 99.6051
Max. virtual memory (cumulated for all children) (KiB): 286712

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 94.5726
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2664
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= 1231

runsolver used 0.080987 second user time and 0.272958 second system time

The end

Launcher Data (download as text)

Begin job on node81 at 2008-07-05 02:24:16
IDJOB=1081557
IDBENCH=57112
IDSOLVER=361
FILE ID=node81/1081557-1215217456
PBS_JOBID= 7881768
Free space on /tmp= 126816 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/knights/normalized-knights-25-9.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1081557-1215217456/watcher-1081557-1215217456 -o /tmp/evaluation-result-1081557-1215217456/solver-1081557-1215217456 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1081557-1215217456.xml 90657337 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 2c2a315f78e02a36f39cc2b3c6ab1a62
RANDOM SEED=90657337

node81.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		: 3000.236
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		: 3000.236
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1491336 kB
Buffers:         78448 kB
Cached:         379928 kB
SwapCached:       6404 kB
Active:         241684 kB
Inactive:       252128 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1491336 kB
SwapTotal:     4192956 kB
SwapFree:      4179588 kB
Dirty:            2864 kB
Writeback:           0 kB
Mapped:          43628 kB
Slab:            56284 kB
Committed_AS:   590920 kB
PageTables:       1616 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= 126812 MiB
End job on node81 at 2008-07-05 02:25:52