Trace number 1081537

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 zitoUNSAT 5.43617 5.4701

DiagnosticValue
CHECKS1980860

General information on the benchmark

Namecsp/knights/
normalized-knights-25-5.xml
MD5SUM7db82ba6d255c2ecb99a834eebcb3238
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 benchmark0.825873
Satisfiable
(Un)Satisfiability was proved
Number of variables5
Number of constraints10
Maximum constraint arity2
Maximum domain size625
Number of constraints which are defined in extension0
Number of constraints which are defined in intension10
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.21	c [ This is CaSPERzito (C) mvc@di.fct.unl.pt ]
0.18/0.21	c Parsing = 1
0.18/0.21	c Building = 1
0.18/0.21	c [ NumberOfVariables = 5 ]
0.18/0.21	c [ NumberOfConstraints = 10 ]
0.18/0.21	c [ SizeOfSearchSpace(log2) = 46.4386 ]
0.18/0.21	c SymmetrySearch = 1
0.18/0.21	c [ Found 10 symmetries ]
0.18/0.21	c InitialPropagation = 1
0.18/0.21	c [ SizeOfSearchSpace(log2) = 46.427 ]
0.18/0.21	c InitialSAC = 1
0.18/0.21	c [ SizeOfSearchSpace(log2) = 46.427 ]
0.18/0.21	c Search(SampleFF) : 
5.36/5.46	c [ Sampling domwdeg ]
5.36/5.46	c Search(SampleFF) = 0
5.36/5.46	s UNSATISFIABLE
5.36/5.46	d CHECKS 1980865
5.36/5.46	c [ TotalFails = 38617 ]
5.36/5.46	c [ NumberOfRestarts = 11 ]
5.36/5.46	c [ TotalTime = 5.09117 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-1081537-1215217394/watcher-1081537-1215217394 -o /tmp/evaluation-result-1081537-1215217394/solver-1081537-1215217394 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzito HOME/instance-1081537-1215217394.xml 2086770961 

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: 1.99 2.00 2.00 4/80 13360
/proc/meminfo: memFree=1737232/2055920 swapFree=4180424/4192956
[pid=13360] ppid=13358 vsize=1052 CPUtime=0
/proc/13360/stat : 13360 (casperzito) R 13358 13360 11861 0 -1 4194304 40 0 0 0 0 0 0 0 19 0 1 0 2000712944 1077248 26 996147200 134512640 135472138 4294956224 18446744073709551615 10945316 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/13360/statm: 263 26 20 234 0 3 0

[startup+0.10602 s]
/proc/loadavg: 1.99 2.00 2.00 4/80 13360
/proc/meminfo: memFree=1737232/2055920 swapFree=4180424/4192956
[pid=13360] ppid=13358 vsize=99196 CPUtime=0.09
/proc/13360/stat : 13360 (casperzito) R 13358 13360 11861 0 -1 4194304 617 0 0 0 9 0 0 0 18 0 1 0 2000712944 101576704 577 996147200 134512640 135472138 4294956224 18446744073709551615 135262944 0 0 4096 0 0 0 0 17 1 0 0
/proc/13360/statm: 24799 577 498 234 0 23501 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 99196

[startup+0.202027 s]
/proc/loadavg: 1.99 2.00 2.00 4/80 13360
/proc/meminfo: memFree=1737232/2055920 swapFree=4180424/4192956
[pid=13360] ppid=13358 vsize=99196 CPUtime=0.18
/proc/13360/stat : 13360 (casperzito) R 13358 13360 11861 0 -1 4194304 623 0 0 0 18 0 0 0 18 0 1 0 2000712944 101576704 583 996147200 134512640 135472138 4294956224 18446744073709551615 134936049 0 0 4096 0 0 0 0 17 1 0 0
/proc/13360/statm: 24799 583 499 234 0 23501 0
Current children cumulated CPU time (s) 0.18
Current children cumulated vsize (KiB) 99196

[startup+0.302039 s]
/proc/loadavg: 1.99 2.00 2.00 4/80 13360
/proc/meminfo: memFree=1737232/2055920 swapFree=4180424/4192956
[pid=13360] ppid=13358 vsize=99196 CPUtime=0.28
/proc/13360/stat : 13360 (casperzito) R 13358 13360 11861 0 -1 4194304 623 0 0 0 28 0 0 0 19 0 1 0 2000712944 101576704 583 996147200 134512640 135472138 4294956224 18446744073709551615 134934858 0 0 4096 0 0 0 0 17 1 0 0
/proc/13360/statm: 24799 583 499 234 0 23501 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 99196

[startup+0.702087 s]
/proc/loadavg: 1.99 2.00 2.00 4/80 13360
/proc/meminfo: memFree=1737232/2055920 swapFree=4180424/4192956
[pid=13360] ppid=13358 vsize=99196 CPUtime=0.68
/proc/13360/stat : 13360 (casperzito) R 13358 13360 11861 0 -1 4194304 633 0 0 0 68 0 0 0 22 0 1 0 2000712944 101576704 593 996147200 134512640 135472138 4294956224 18446744073709551615 134672509 0 0 4096 0 0 0 0 17 1 0 0
/proc/13360/statm: 24799 593 499 234 0 23501 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 99196

[startup+1.50118 s]
/proc/loadavg: 1.99 2.00 2.00 3/81 13361
/proc/meminfo: memFree=1736776/2055920 swapFree=4180424/4192956
[pid=13360] ppid=13358 vsize=99196 CPUtime=1.47
/proc/13360/stat : 13360 (casperzito) R 13358 13360 11861 0 -1 4194304 643 0 0 0 147 0 0 0 25 0 1 0 2000712944 101576704 603 996147200 134512640 135472138 4294956224 18446744073709551615 134578091 0 0 4096 0 0 0 0 17 1 0 0
/proc/13360/statm: 24799 603 499 234 0 23501 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 99196

[startup+3.10138 s]
/proc/loadavg: 1.99 2.00 2.00 3/81 13361
/proc/meminfo: memFree=1736648/2055920 swapFree=4180424/4192956
[pid=13360] ppid=13358 vsize=99196 CPUtime=3.07
/proc/13360/stat : 13360 (casperzito) R 13358 13360 11861 0 -1 4194304 672 0 0 0 307 0 0 0 25 0 1 0 2000712944 101576704 632 996147200 134512640 135472138 4294956224 18446744073709551615 134935894 0 0 4096 0 0 0 0 17 1 0 0
/proc/13360/statm: 24799 632 499 234 0 23501 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 99196

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

[startup+3.20139 s]
/proc/loadavg: 1.99 2.00 2.00 3/81 13361
/proc/meminfo: memFree=1736648/2055920 swapFree=4180424/4192956
[pid=13360] ppid=13358 vsize=99196 CPUtime=3.17
/proc/13360/stat : 13360 (casperzito) R 13358 13360 11861 0 -1 4194304 672 0 0 0 317 0 0 0 25 0 1 0 2000712944 101576704 632 996147200 134512640 135472138 4294956224 18446744073709551615 134578193 0 0 4096 0 0 0 0 17 1 0 0
/proc/13360/statm: 24799 632 499 234 0 23501 0
Current children cumulated CPU time (s) 3.17
Current children cumulated vsize (KiB) 99196

[startup+4.80158 s]
/proc/loadavg: 1.99 2.00 2.00 3/81 13361
/proc/meminfo: memFree=1736520/2055920 swapFree=4180424/4192956
[pid=13360] ppid=13358 vsize=99196 CPUtime=4.76
/proc/13360/stat : 13360 (casperzito) R 13358 13360 11861 0 -1 4194304 702 0 0 0 476 0 0 0 25 0 1 0 2000712944 101576704 662 996147200 134512640 135472138 4294956224 18446744073709551615 134913102 0 0 4096 0 0 0 0 17 1 0 0
/proc/13360/statm: 24799 662 499 234 0 23501 0
Current children cumulated CPU time (s) 4.76
Current children cumulated vsize (KiB) 99196

[startup+5.20163 s]
/proc/loadavg: 1.99 2.00 2.00 3/81 13361
/proc/meminfo: memFree=1736520/2055920 swapFree=4180424/4192956
[pid=13360] ppid=13358 vsize=99196 CPUtime=5.16
/proc/13360/stat : 13360 (casperzito) R 13358 13360 11861 0 -1 4194304 702 0 0 0 516 0 0 0 25 0 1 0 2000712944 101576704 662 996147200 134512640 135472138 4294956224 18446744073709551615 134672481 0 0 4096 0 0 0 0 17 1 0 0
/proc/13360/statm: 24799 662 499 234 0 23501 0
Current children cumulated CPU time (s) 5.16
Current children cumulated vsize (KiB) 99196

[startup+5.40165 s]
/proc/loadavg: 1.99 2.00 2.00 3/81 13361
/proc/meminfo: memFree=1736520/2055920 swapFree=4180424/4192956
[pid=13360] ppid=13358 vsize=99196 CPUtime=5.36
/proc/13360/stat : 13360 (casperzito) R 13358 13360 11861 0 -1 4194304 712 0 0 0 536 0 0 0 25 0 1 0 2000712944 101576704 672 996147200 134512640 135472138 4294956224 18446744073709551615 134913073 0 0 4096 0 0 0 0 17 1 0 0
/proc/13360/statm: 24799 672 499 234 0 23501 0
Current children cumulated CPU time (s) 5.36
Current children cumulated vsize (KiB) 99196

Child status: 0
Real time (s): 5.4701
CPU time (s): 5.43617
CPU user time (s): 5.42917
CPU system time (s): 0.006998
CPU usage (%): 99.3798
Max. virtual memory (cumulated for all children) (KiB): 99196

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.42917
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 720
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= 77

runsolver used 0.012998 second user time and 0.016997 second system time

The end

Launcher Data (download as text)

Begin job on node33 at 2008-07-05 02:23:14
IDJOB=1081537
IDBENCH=57109
IDSOLVER=362
FILE ID=node33/1081537-1215217394
PBS_JOBID= 7881745
Free space on /tmp= 66468 MiB

SOLVER NAME= casper zito
BENCH NAME= CPAI08/csp/knights/normalized-knights-25-5.xml
COMMAND LINE= HOME/casperzito BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1081537-1215217394/watcher-1081537-1215217394 -o /tmp/evaluation-result-1081537-1215217394/solver-1081537-1215217394 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzito HOME/instance-1081537-1215217394.xml 2086770961 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 7db82ba6d255c2ecb99a834eebcb3238
RANDOM SEED=2086770961

node33.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		: 3000.231
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		: 3000.231
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:       1737712 kB
Buffers:         31860 kB
Cached:         142916 kB
SwapCached:       6444 kB
Active:         213184 kB
Inactive:        46636 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1737712 kB
SwapTotal:     4192956 kB
SwapFree:      4180424 kB
Dirty:            2880 kB
Writeback:           0 kB
Mapped:         101376 kB
Slab:            43448 kB
Committed_AS:  4379952 kB
PageTables:       1968 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= 66468 MiB
End job on node33 at 2008-07-05 02:23:20