Trace number 2117136

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
Choco2.1.1b 2009-07-16UNSAT 1.16382 1.20726

DiagnosticValue
CHECKS0
NODES27

General information on the benchmark

Namecsp/langford4/
normalized-langford-4-8.xml
MD5SUMe02ab284be8165bbf8650c2ca610d92a
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 benchmark0.033994
Satisfiable
(Un)Satisfiability was proved
Number of variables32
Number of constraints520
Maximum constraint arity2
Maximum domain size32
Number of constraints which are defined in extension0
Number of constraints which are defined in intension520
Global constraints used (with number of constraints)

Solver Data 

1.09/1.16	s UNSATISFIABLE
1.09/1.16	d AC 32
1.09/1.16	d RUNTIME 1.055
1.09/1.16	d NODES 27
1.09/1.16	d NODES/s 26
1.09/1.16	d BACKTRACKS 50
1.09/1.16	d BACKTRACKS/s 47
1.09/1.16	d CHECKS 0
1.09/1.16	d CHECKS/s 0
1.09/1.16	c UNSAT 1.055 TIME      27 NDS    416 PARSTIME      138 BUILDPB       236 CONFIG        265 RES       true RESTART       1 HEURISTIC       true RANDVAL

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-2117136-1248033251/watcher-2117136-1248033251 -o /tmp/evaluation-result-2117136-1248033251/solver-2117136-1248033251 -C 1800 -W 2000 -M 900 java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2117136-1248033251.xml -randval true -h 1 -ac 32 -saclim 60 -s true -verb 0 -seed 11041979 

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: 2.06 2.03 2.00 3/80 28798
/proc/meminfo: memFree=524848/2055920 swapFree=4192812/4192956
[pid=28798] ppid=28796 vsize=140 CPUtime=0
/proc/28798/stat : 28798 (java) R 28796 28798 27940 0 -1 0 18 0 0 0 0 0 0 0 20 0 1 0 90391320 143360 3 996147200 134512640 134550932 4294956064 18446744073709551615 10618816 0 0 4096 0 0 0 0 17 0 0 0
/proc/28798/statm: 35 3 0 9 0 1 0

[startup+0.0751959 s]
/proc/loadavg: 2.06 2.03 2.00 3/80 28798
/proc/meminfo: memFree=524848/2055920 swapFree=4192812/4192956
[pid=28798] ppid=28796 vsize=862204 CPUtime=0.06
/proc/28798/stat : 28798 (java) S 28796 28798 27940 0 -1 0 2973 0 1 0 4 2 0 0 18 0 9 0 90391320 882896896 2465 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28798/statm: 215551 2465 1187 9 0 210421 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 862204

[startup+0.101201 s]
/proc/loadavg: 2.06 2.03 2.00 3/80 28798
/proc/meminfo: memFree=524848/2055920 swapFree=4192812/4192956
[pid=28798] ppid=28796 vsize=864072 CPUtime=0.08
/proc/28798/stat : 28798 (java) S 28796 28798 27940 0 -1 0 3727 0 1 0 6 2 0 0 18 0 9 0 90391320 884809728 3192 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28798/statm: 216018 3192 1664 9 0 210487 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 864072

[startup+0.301237 s]
/proc/loadavg: 2.06 2.03 2.00 3/80 28798
/proc/meminfo: memFree=524848/2055920 swapFree=4192812/4192956
[pid=28798] ppid=28796 vsize=864988 CPUtime=0.28
/proc/28798/stat : 28798 (java) S 28796 28798 27940 0 -1 0 4788 0 1 0 25 3 0 0 18 0 9 0 90391320 885747712 4210 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28798/statm: 216247 4210 1866 9 0 210716 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 864988

[startup+0.701309 s]
/proc/loadavg: 2.06 2.03 2.00 3/80 28798
/proc/meminfo: memFree=524848/2055920 swapFree=4192812/4192956
[pid=28798] ppid=28796 vsize=865100 CPUtime=0.68
/proc/28798/stat : 28798 (java) S 28796 28798 27940 0 -1 0 6680 0 1 0 64 4 0 0 18 0 9 0 90391320 885862400 6074 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28798/statm: 216275 6074 1953 9 0 210744 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 865100

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

[startup+1.10639 s]
/proc/loadavg: 2.06 2.03 2.00 3/89 28807
/proc/meminfo: memFree=503272/2055920 swapFree=4192812/4192956
[pid=28798] ppid=28796 vsize=865100 CPUtime=1.09
/proc/28798/stat : 28798 (java) S 28796 28798 27940 0 -1 0 8053 0 1 0 103 6 0 0 18 0 9 0 90391320 885862400 7432 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28798/statm: 216275 7432 1974 9 0 210744 0
[pid=28798/tid=28800] ppid=28796 vsize=865100 CPUtime=0.8
/proc/28798/task/28800/stat : 28800 (java) R 28796 28798 27940 0 -1 64 6711 0 1 0 76 4 0 0 25 0 9 0 90391321 885862400 7432 996147200 134512640 134550932 4294955888 18446744073709551615 4126970718 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28801] ppid=28796 vsize=865100 CPUtime=0
/proc/28798/task/28801/stat : 28801 (java) S 28796 28798 27940 0 -1 64 4 0 0 0 0 0 0 0 16 0 9 0 90391323 885862400 7432 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28802] ppid=28796 vsize=865100 CPUtime=0
/proc/28798/task/28802/stat : 28802 (java) S 28796 28798 27940 0 -1 64 11 0 0 0 0 0 0 0 19 0 9 0 90391323 885862400 7432 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28803] ppid=28796 vsize=865100 CPUtime=0
/proc/28798/task/28803/stat : 28803 (java) S 28796 28798 27940 0 -1 64 4 0 0 0 0 0 0 0 20 0 9 0 90391323 885862400 7432 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28804] ppid=28796 vsize=865100 CPUtime=0
/proc/28798/task/28804/stat : 28804 (java) S 28796 28798 27940 0 -1 64 1 0 0 0 0 0 0 0 18 0 9 0 90391325 885862400 7432 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28805] ppid=28796 vsize=865100 CPUtime=0.26
/proc/28798/task/28805/stat : 28805 (java) S 28796 28798 27940 0 -1 64 612 0 0 0 26 0 0 0 15 0 9 0 90391325 885862400 7432 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28806] ppid=28796 vsize=865100 CPUtime=0
/proc/28798/task/28806/stat : 28806 (java) S 28796 28798 27940 0 -1 64 0 0 0 0 0 0 0 0 19 0 9 0 90391325 885862400 7432 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28807] ppid=28796 vsize=865100 CPUtime=0
/proc/28798/task/28807/stat : 28807 (java) S 28796 28798 27940 0 -1 64 0 0 0 0 0 0 0 0 15 0 9 0 90391325 885862400 7432 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 865100

[startup+1.20139 s]
/proc/loadavg: 2.06 2.03 2.00 3/89 28807
/proc/meminfo: memFree=503272/2055920 swapFree=4192812/4192956
[pid=28798] ppid=28796 vsize=865552 CPUtime=1.15
/proc/28798/stat : 28798 (java) S 28796 28798 27940 0 -1 0 8193 0 1 0 109 6 0 0 18 0 9 0 90391320 886325248 7569 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/28798/statm: 216388 7569 1981 9 0 210857 0
[pid=28798/tid=28800] ppid=28796 vsize=865552 CPUtime=0.86
/proc/28798/task/28800/stat : 28800 (java) S 28796 28798 27940 0 -1 64 6842 0 1 0 82 4 0 0 25 0 9 0 90391321 886325248 7569 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28801] ppid=28796 vsize=865552 CPUtime=0
/proc/28798/task/28801/stat : 28801 (java) S 28796 28798 27940 0 -1 64 4 0 0 0 0 0 0 0 16 0 9 0 90391323 886325248 7569 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28802] ppid=28796 vsize=865552 CPUtime=0
/proc/28798/task/28802/stat : 28802 (java) S 28796 28798 27940 0 -1 64 11 0 0 0 0 0 0 0 19 0 9 0 90391323 886325248 7569 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28803] ppid=28796 vsize=865552 CPUtime=0
/proc/28798/task/28803/stat : 28803 (java) S 28796 28798 27940 0 -1 64 4 0 0 0 0 0 0 0 20 0 9 0 90391323 886325248 7569 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28804] ppid=28796 vsize=865552 CPUtime=0
/proc/28798/task/28804/stat : 28804 (java) S 28796 28798 27940 0 -1 64 1 0 0 0 0 0 0 0 18 0 9 0 90391325 886325248 7569 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28805] ppid=28796 vsize=865552 CPUtime=0.27
/proc/28798/task/28805/stat : 28805 (java) S 28796 28798 27940 0 -1 64 615 0 0 0 27 0 0 0 15 0 9 0 90391325 886325248 7569 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28806] ppid=28796 vsize=865552 CPUtime=0
/proc/28798/task/28806/stat : 28806 (java) S 28796 28798 27940 0 -1 64 0 0 0 0 0 0 0 0 19 0 9 0 90391325 886325248 7569 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=28798/tid=28807] ppid=28796 vsize=865552 CPUtime=0
/proc/28798/task/28807/stat : 28807 (java) S 28796 28798 27940 0 -1 64 0 0 0 0 0 0 0 0 15 0 9 0 90391325 886325248 7569 996147200 134512640 134550932 4294955888 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.15
Current children cumulated vsize (KiB) 865552

Child status: 0
Real time (s): 1.20726
CPU time (s): 1.16382
CPU user time (s): 1.09683
CPU system time (s): 0.066989
CPU usage (%): 96.4023
Max. virtual memory (cumulated for all children) (KiB): 865552

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.09683
system time used= 0.066989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8196
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1351
involuntary context switches= 1323

runsolver used 0.001999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node27 at 2009-07-19 21:54:11
IDJOB=2117136
IDBENCH=58657
IDSOLVER=780
FILE ID=node27/2117136-1248033251
PBS_JOBID= 9528993
Free space on /tmp= 66236 MiB

SOLVER NAME= Choco2.1.1b 2009-07-16
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-8.xml
COMMAND LINE= java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file BENCHNAME -randval true -h 1 -ac 32 -saclim 60 -s true -verb 0 -seed 11041979
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2117136-1248033251/watcher-2117136-1248033251 -o /tmp/evaluation-result-2117136-1248033251/solver-2117136-1248033251 -C 1800 -W 2000 -M 900  java -Xms700M -Xmx700M -jar HOME/choco2.1.1.b.jar -file HOME/instance-2117136-1248033251.xml -randval true -h 1 -ac 32 -saclim 60 -s true -verb 0 -seed 11041979

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

MD5SUM BENCH= e02ab284be8165bbf8650c2ca610d92a
RANDOM SEED=91857019

node27.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		: 2800.239
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	: 5521.40
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		: 2800.239
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:        525328 kB
Buffers:        103216 kB
Cached:         717136 kB
SwapCached:          0 kB
Active:         815880 kB
Inactive:       607640 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        525328 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5272 kB
Writeback:           0 kB
Mapped:         621008 kB
Slab:            91232 kB
Committed_AS:  1331136 kB
PageTables:       2904 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264948 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66228 MiB
End job on node27 at 2009-07-19 21:54:12