Trace number 1048665

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 19.1691 19.3346

DiagnosticValue
CHECKS7258600

General information on the benchmark

Namecsp/ramsey3/
normalized-ramsey-18-3.xml
MD5SUM14ec6612041bf1bae6341e725eab1bfc
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 benchmark19.1691
Satisfiable
(Un)Satisfiability was proved
Number of variables153
Number of constraints816
Maximum constraint arity3
Maximum domain size3
Number of constraints which are defined in extension0
Number of constraints which are defined in intension816
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.21	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.18/0.21	c Parsing = 1
0.18/0.21	c Building = 1
0.28/0.38	c [ NumberOfVariables = 153 ]
0.28/0.38	c [ NumberOfConstraints = 816 ]
0.28/0.38	c [ SizeOfSearchSpace(log2) = 242.499 ]
0.28/0.38	c SymmetrySearch = 1
0.38/0.43	c [ Found 6.40237e+15 symmetries ]
0.38/0.43	c InitialPropagation = 1
0.38/0.44	c [ SizeOfSearchSpace(log2) = 242.499 ]
0.38/0.44	c InitialSAC = 1
0.38/0.46	c [ SizeOfSearchSpace(log2) = 242.499 ]
0.38/0.46	c Search(SampleFF) : 
17.34/17.54	c [ Sampling domwdeg ]
17.34/17.54	c [ stopped restarting at (1.60065,2.77935) ]
19.13/19.33	c Search(SampleFF) = 0
19.13/19.33	s UNSATISFIABLE
19.13/19.33	d CHECKS 7258605
19.13/19.33	c [ TotalFails = 47918 ]
19.13/19.33	c [ NumberOfRestarts = 19 ]
19.13/19.33	c [ TotalTime = 17.996 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-1048665-1215043622/watcher-1048665-1215043622 -o /tmp/evaluation-result-1048665-1215043622/solver-1048665-1215043622 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1048665-1215043622.xml 2070719221 

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 1.91 4/72 2724
/proc/meminfo: memFree=1882512/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=1056 CPUtime=0
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 40 0 0 0 0 0 0 0 19 0 1 0 1983337821 1081344 26 996147200 134512640 135477443 4294956224 18446744073709551615 5829412 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 264 26 20 235 0 3 0

[startup+0.0746439 s]
/proc/loadavg: 2.00 2.00 1.91 4/72 2724
/proc/meminfo: memFree=1882512/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=287636 CPUtime=0.05
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 1319 0 0 0 5 0 0 0 18 0 1 0 1983337821 294539264 809 996147200 134512640 135477443 4294956224 18446744073709551615 135268320 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 71909 809 459 235 0 70610 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 287636

[startup+0.101649 s]
/proc/loadavg: 2.00 2.00 1.91 4/72 2724
/proc/meminfo: memFree=1882512/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=288164 CPUtime=0.08
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 1969 0 0 0 7 1 0 0 18 0 1 0 1983337821 295079936 997 996147200 134512640 135477443 4294956224 18446744073709551615 134695855 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 72041 997 459 235 0 70742 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 288164

[startup+0.301693 s]
/proc/loadavg: 2.00 2.00 1.91 4/72 2724
/proc/meminfo: memFree=1882512/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=292388 CPUtime=0.28
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 6810 0 0 0 23 5 0 0 19 0 1 0 1983337821 299405312 2387 996147200 134512640 135477443 4294956224 18446744073709551615 6264443 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 73097 2387 459 235 0 71798 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 292388

[startup+0.701769 s]
/proc/loadavg: 2.00 2.00 1.91 4/72 2724
/proc/meminfo: memFree=1882512/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=107592 CPUtime=0.67
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 9228 0 0 0 60 7 0 0 23 0 1 0 1983337821 110174208 3449 996147200 134512640 135477443 4294956224 18446744073709551615 135208680 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 26898 3449 511 235 0 25599 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 107592

[startup+1.50193 s]
/proc/loadavg: 2.00 2.00 1.91 3/73 2725
/proc/meminfo: memFree=1869896/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=107592 CPUtime=1.47
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 9228 0 0 0 140 7 0 0 25 0 1 0 1983337821 110174208 3449 996147200 134512640 135477443 4294956224 18446744073709551615 135208694 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 26898 3449 511 235 0 25599 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 107592

[startup+3.10124 s]
/proc/loadavg: 2.00 2.00 1.91 3/73 2725
/proc/meminfo: memFree=1869768/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=107592 CPUtime=3.06
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 9229 0 0 0 299 7 0 0 25 0 1 0 1983337821 110174208 3450 996147200 134512640 135477443 4294956224 18446744073709551615 134923105 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 26898 3450 511 235 0 25599 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 107592

[startup+6.30187 s]
/proc/loadavg: 2.00 2.00 1.91 3/73 2725
/proc/meminfo: memFree=1869512/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=107592 CPUtime=6.23
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 9229 0 0 0 616 7 0 0 25 0 1 0 1983337821 110174208 3450 996147200 134512640 135477443 4294956224 18446744073709551615 135208694 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 26898 3450 511 235 0 25599 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 107592

[startup+12.7011 s]
/proc/loadavg: 2.00 2.00 1.91 3/73 2725
/proc/meminfo: memFree=1869320/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=107592 CPUtime=12.58
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 9246 0 0 0 1251 7 0 0 25 0 1 0 1983337821 110174208 3467 996147200 134512640 135477443 4294956224 18446744073709551615 135270265 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 26898 3467 511 235 0 25599 0
Current children cumulated CPU time (s) 12.58
Current children cumulated vsize (KiB) 107592

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

[startup+15.9018 s]
/proc/loadavg: 2.00 2.00 1.91 3/73 2725
/proc/meminfo: memFree=1869384/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=107592 CPUtime=15.75
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 9248 0 0 0 1568 7 0 0 25 0 1 0 1983337821 110174208 3469 996147200 134512640 135477443 4294956224 18446744073709551615 134606692 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 26898 3469 511 235 0 25599 0
Current children cumulated CPU time (s) 15.75
Current children cumulated vsize (KiB) 107592

[startup+17.5021 s]
/proc/loadavg: 2.00 2.00 1.91 3/73 2725
/proc/meminfo: memFree=1869384/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=107592 CPUtime=17.34
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 9249 0 0 0 1727 7 0 0 25 0 1 0 1983337821 110174208 3470 996147200 134512640 135477443 4294956224 18446744073709551615 135208689 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 26898 3470 511 235 0 25599 0
Current children cumulated CPU time (s) 17.34
Current children cumulated vsize (KiB) 107592

[startup+18.3012 s]
/proc/loadavg: 2.00 2.00 1.91 3/73 2725
/proc/meminfo: memFree=1869384/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=107592 CPUtime=18.13
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 9249 0 0 0 1806 7 0 0 25 0 1 0 1983337821 110174208 3470 996147200 134512640 135477443 4294956224 18446744073709551615 134688808 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 26898 3470 511 235 0 25599 0
Current children cumulated CPU time (s) 18.13
Current children cumulated vsize (KiB) 107592

[startup+19.1014 s]
/proc/loadavg: 2.00 2.00 1.91 3/73 2725
/proc/meminfo: memFree=1869384/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=107592 CPUtime=18.93
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 9249 0 0 0 1886 7 0 0 25 0 1 0 1983337821 110174208 3470 996147200 134512640 135477443 4294956224 18446744073709551615 134589069 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 26898 3470 511 235 0 25599 0
Current children cumulated CPU time (s) 18.93
Current children cumulated vsize (KiB) 107592

[startup+19.3014 s]
/proc/loadavg: 2.00 2.00 1.91 3/73 2725
/proc/meminfo: memFree=1869384/2055920 swapFree=4179472/4192956
[pid=2724] ppid=2722 vsize=107592 CPUtime=19.13
/proc/2724/stat : 2724 (casperzao) R 2722 2724 1842 0 -1 4194304 9249 0 0 0 1906 7 0 0 25 0 1 0 1983337821 110174208 3470 996147200 134512640 135477443 4294956224 18446744073709551615 135208674 0 0 4096 0 0 0 0 17 1 0 0
/proc/2724/statm: 26898 3470 511 235 0 25599 0
Current children cumulated CPU time (s) 19.13
Current children cumulated vsize (KiB) 107592

Child status: 0
Real time (s): 19.3346
CPU time (s): 19.1691
CPU user time (s): 19.0901
CPU system time (s): 0.078987
CPU usage (%): 99.1439
Max. virtual memory (cumulated for all children) (KiB): 292388

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.0901
system time used= 0.078987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9251
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= 20
involuntary context switches= 472

runsolver used 0.015997 second user time and 0.06399 second system time

The end

Launcher Data (download as text)

Begin job on node1 at 2008-07-03 02:07:02
IDJOB=1048665
IDBENCH=54434
IDSOLVER=361
FILE ID=node1/1048665-1215043622
PBS_JOBID= 7875172
Free space on /tmp= 66548 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/ramsey3/normalized-ramsey-18-3.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1048665-1215043622/watcher-1048665-1215043622 -o /tmp/evaluation-result-1048665-1215043622/solver-1048665-1215043622 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1048665-1215043622.xml 2070719221 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 14ec6612041bf1bae6341e725eab1bfc
RANDOM SEED=2070719221

node1.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		: 3000.265
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		: 3000.265
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:       1882992 kB
Buffers:          5392 kB
Cached:          99996 kB
SwapCached:       7288 kB
Active:          50224 kB
Inactive:        67052 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1882992 kB
SwapTotal:     4192956 kB
SwapFree:      4179472 kB
Dirty:            4236 kB
Writeback:           0 kB
Mapped:          19648 kB
Slab:            41188 kB
Committed_AS:  3009488 kB
PageTables:       1784 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= 66544 MiB
End job on node1 at 2008-07-03 02:07:21