Trace number 2058976

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
pcs 0.3.2UNSAT 0.492924 0.504053

DiagnosticValue
ASSIGNMENTS995

General information on the benchmark

Namecsp/QCP-25/
normalized-qcp-25-264-12_ext.xml
MD5SUMb3fd40cb3c979dcb57fec69fff68dd9c
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.492924
Satisfiable
(Un)Satisfiability was proved
Number of variables625
Number of constraints10142
Maximum constraint arity2
Maximum domain size25
Number of constraints which are defined in extension10142
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.02	c small-domain mode
0.00/0.02	c Seed is 2053275108
0.00/0.02	c Constructing HOME/instance-2058976-1247694402.xml  with 70862 constraints
0.28/0.30	c Solving 995 backtracks 8 restarts
0.47/0.50	s UNSATISFIABLE
0.47/0.50	d ASSIGNMENTS 995

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-2058976-1247694402/watcher-2058976-1247694402 -o /tmp/evaluation-result-2058976-1247694402/solver-2058976-1247694402 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 2053275108 HOME/instance-2058976-1247694402.xml 

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: 1.86 0.88 0.33 4/72 12780
/proc/meminfo: memFree=995992/2055920 swapFree=4192812/4192956
[pid=12780] ppid=12778 vsize=5356 CPUtime=0
/proc/12780/stat : 12780 (pcssolve) R 12778 12780 12631 0 -1 4194304 290 0 0 0 0 0 0 0 23 0 1 0 56506569 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 266134416031 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12780/statm: 1339 241 200 169 0 50 0
[pid=12781] ppid=12780 vsize=3676 CPUtime=0
/proc/12781/stat : 12781 (fgrep) R 12780 12780 12631 0 -1 4194304 123 0 0 0 0 0 0 0 24 0 1 0 56506570 3764224 90 996147200 4194304 4274172 548682068976 18446744073709551615 266134544688 0 0 4096 0 0 0 0 17 1 0 0
/proc/12781/statm: 919 90 72 19 0 43 0
[pid=12782] ppid=12780 vsize=5356 CPUtime=0
/proc/12782/stat : 12782 (pcssolve) R 12780 12780 12631 0 -1 4194368 0 0 0 0 0 0 0 0 23 0 1 0 56506570 5484544 241 996147200 4194304 4889804 548682068800 18446744073709551615 266134416031 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/12782/statm: 1339 241 200 169 0 50 0

[startup+0.0743209 s]
/proc/loadavg: 1.86 0.88 0.33 4/72 12780
/proc/meminfo: memFree=995992/2055920 swapFree=4192812/4192956
[pid=12780] ppid=12778 vsize=6152 CPUtime=0.04
/proc/12780/stat : 12780 (pcs.small) R 12778 12780 12631 0 -1 4194304 1300 824 0 0 4 0 0 0 25 0 1 0 56506569 6299648 811 996147200 134512640 135095119 4294956304 18446744073709551615 134644989 0 0 4096 0 0 0 0 17 1 0 0
/proc/12780/statm: 1538 811 367 142 0 492 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 6152

[startup+0.10233 s]
/proc/loadavg: 1.86 0.88 0.33 4/72 12780
/proc/meminfo: memFree=995992/2055920 swapFree=4192812/4192956
[pid=12780] ppid=12778 vsize=7324 CPUtime=0.07
/proc/12780/stat : 12780 (pcs.small) R 12778 12780 12631 0 -1 4194304 1667 824 0 0 7 0 0 0 25 0 1 0 56506569 7499776 1049 996147200 134512640 135095119 4294956304 18446744073709551615 134705538 0 0 4096 0 0 0 0 17 1 0 0
/proc/12780/statm: 1831 1049 367 142 0 785 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 7324

[startup+0.302351 s]
/proc/loadavg: 1.86 0.88 0.33 4/72 12780
/proc/meminfo: memFree=995992/2055920 swapFree=4192812/4192956
[pid=12780] ppid=12778 vsize=15928 CPUtime=0.28
/proc/12780/stat : 12780 (pcs.small) R 12778 12780 12631 0 -1 4194304 4243 824 0 0 26 2 0 0 25 0 1 0 56506569 16310272 2757 996147200 134512640 135095119 4294956304 18446744073709551615 134716661 0 0 4096 0 0 0 0 17 1 0 0
/proc/12780/statm: 3982 2757 367 142 0 2936 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 15928

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

[startup+0.502506 s]
/proc/loadavg: 1.86 0.88 0.33 4/72 12780
/proc/meminfo: memFree=995992/2055920 swapFree=4192812/4192956
[pid=12780] ppid=12778 vsize=8416 CPUtime=0.47
/proc/12780/stat : 12780 (pcs.small) R 12778 12780 12631 0 -1 4194304 4310 824 0 0 45 2 0 0 25 0 1 0 56506569 8617984 1397 996147200 134512640 135095119 4294956304 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/12780/statm: 2104 1397 378 142 0 1058 0
Current children cumulated CPU time (s) 0.47
Current children cumulated vsize (KiB) 8416

Child status: 0
Real time (s): 0.504053
CPU time (s): 0.492924
CPU user time (s): 0.460929
CPU system time (s): 0.031995
CPU usage (%): 97.7921
Max. virtual memory (cumulated for all children) (KiB): 16092

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.460929
system time used= 0.031995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5137
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= 21
involuntary context switches= 23

runsolver used 0.002999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node35 at 2009-07-15 23:46:42
IDJOB=2058976
IDBENCH=53540
IDSOLVER=733
FILE ID=node35/2058976-1247694402
PBS_JOBID= 9521241
Free space on /tmp= 66156 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/QCP-25/normalized-qcp-25-264-12_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2058976-1247694402/watcher-2058976-1247694402 -o /tmp/evaluation-result-2058976-1247694402/solver-2058976-1247694402 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 2053275108 HOME/instance-2058976-1247694402.xml

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

MD5SUM BENCH= b3fd40cb3c979dcb57fec69fff68dd9c
RANDOM SEED=2053275108

node35.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		: 3000.213
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		: 3000.213
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:        996472 kB
Buffers:         58484 kB
Cached:         896032 kB
SwapCached:          0 kB
Active:          46944 kB
Inactive:       937380 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        996472 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2448 kB
Writeback:           0 kB
Mapped:          41200 kB
Slab:            60532 kB
Committed_AS:   565376 kB
PageTables:       1768 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= 66156 MiB
End job on node35 at 2009-07-15 23:46:42