Trace number 2079568

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 285.789 286.984

DiagnosticValue
ASSIGNMENTS95306

General information on the benchmark

Namecsp/rand-3-20-20/
normalized-rand-3-20-20-60-632-21_ext.xml
MD5SUMe6069f044f2ee9f97974a9c83f351574
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark17.9673
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints58
Maximum constraint arity3
Maximum domain size20
Number of constraints which are defined in extension58
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
0.00/0.03	c Seed is 1179710054
0.00/0.03	c Constructing HOME/instance-2079568-1247716814.xml  with 58 constraints
0.36/0.46	c Solving 95306 backtracks 19 restarts
285.68/286.98	s UNSATISFIABLE
285.68/286.98	d ASSIGNMENTS 95306

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-2079568-1247716814/watcher-2079568-1247716814 -o /tmp/evaluation-result-2079568-1247716814/solver-2079568-1247716814 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 1179710054 HOME/instance-2079568-1247716814.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: 1.97 2.03 2.00 4/84 18201
/proc/meminfo: memFree=1432736/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=5256 CPUtime=0
/proc/18201/stat : 18201 (pcssolve) R 18199 18201 16378 0 -1 4194304 61 0 0 0 0 0 0 0 22 0 1 0 58744092 5382144 46 996147200 4194304 4889804 548682068800 18446744073709551615 209557963072 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 1314 46 35 169 0 13 0

[startup+0.0373111 s]
/proc/loadavg: 1.97 2.03 2.00 4/84 18201
/proc/meminfo: memFree=1432736/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=4376 CPUtime=0.01
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 819 822 0 0 1 0 0 0 25 0 1 0 58744092 4481024 428 996147200 134512640 135095119 4294956304 18446744073709551615 134681641 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 1094 428 362 142 0 48 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4376

[startup+0.10132 s]
/proc/loadavg: 1.97 2.03 2.00 4/84 18201
/proc/meminfo: memFree=1432736/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=5372 CPUtime=0.07
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 950 822 0 0 7 0 0 0 25 0 1 0 58744092 5500928 559 996147200 134512640 135095119 4294956304 18446744073709551615 9199238 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 1343 559 375 142 0 297 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 5372

[startup+0.301355 s]
/proc/loadavg: 1.97 2.03 2.00 4/84 18201
/proc/meminfo: memFree=1432736/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=7980 CPUtime=0.26
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 1275 822 0 0 26 0 0 0 25 0 1 0 58744092 8171520 884 996147200 134512640 135095119 4294956304 18446744073709551615 9199198 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 1995 884 375 142 0 949 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 7980

[startup+0.701425 s]
/proc/loadavg: 1.97 2.03 2.00 4/84 18201
/proc/meminfo: memFree=1432736/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=10160 CPUtime=0.66
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 1579 822 0 0 66 0 0 0 25 0 1 0 58744092 10403840 1188 996147200 134512640 135095119 4294956304 18446744073709551615 134926999 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 2540 1188 389 142 0 1494 0
Current children cumulated CPU time (s) 0.66
Current children cumulated vsize (KiB) 10160

[startup+1.50156 s]
/proc/loadavg: 1.97 2.03 2.00 3/85 18207
/proc/meminfo: memFree=1429400/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=10160 CPUtime=1.45
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 1590 822 0 0 145 0 0 0 25 0 1 0 58744092 10403840 1199 996147200 134512640 135095119 4294956304 18446744073709551615 134554987 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 2540 1199 389 142 0 1494 0
Current children cumulated CPU time (s) 1.45
Current children cumulated vsize (KiB) 10160

[startup+3.10183 s]
/proc/loadavg: 1.97 2.03 2.00 3/85 18207
/proc/meminfo: memFree=1429208/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=10292 CPUtime=3.04
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 1621 822 0 0 304 0 0 0 25 0 1 0 58744092 10539008 1230 996147200 134512640 135095119 4294956304 18446744073709551615 134926973 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 2573 1230 389 142 0 1527 0
Current children cumulated CPU time (s) 3.04
Current children cumulated vsize (KiB) 10292

[startup+6.30137 s]
/proc/loadavg: 1.97 2.03 2.00 3/85 18207
/proc/meminfo: memFree=1428952/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=10420 CPUtime=6.21
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 1689 822 0 0 621 0 0 0 25 0 1 0 58744092 10670080 1265 996147200 134512640 135095119 4294956304 18446744073709551615 134916487 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 2605 1265 389 142 0 1559 0
Current children cumulated CPU time (s) 6.21
Current children cumulated vsize (KiB) 10420

[startup+12.7015 s]
/proc/loadavg: 2.05 2.04 2.01 3/85 18207
/proc/meminfo: memFree=1428248/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=10808 CPUtime=12.55
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 1866 822 0 0 1255 0 0 0 25 0 1 0 58744092 11067392 1377 996147200 134512640 135095119 4294956304 18446744073709551615 134927029 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 2702 1377 389 142 0 1656 0
Current children cumulated CPU time (s) 12.55
Current children cumulated vsize (KiB) 10808

[startup+25.5016 s]
/proc/loadavg: 2.11 2.06 2.01 3/85 18207
/proc/meminfo: memFree=1427672/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=11448 CPUtime=25.24
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 2227 822 0 0 2523 1 0 0 25 0 1 0 58744092 11722752 1576 996147200 134512640 135095119 4294956304 18446744073709551615 134918159 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 2862 1576 389 142 0 1816 0
Current children cumulated CPU time (s) 25.24
Current children cumulated vsize (KiB) 11448

[startup+51.102 s]
/proc/loadavg: 2.07 2.05 2.01 3/85 18213
/proc/meminfo: memFree=1426072/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=12728 CPUtime=50.57
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 2945 822 0 0 5056 1 0 0 25 0 1 0 58744092 13033472 1972 996147200 134512640 135095119 4294956304 18446744073709551615 134909778 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 3182 1972 389 142 0 2136 0
Current children cumulated CPU time (s) 50.57
Current children cumulated vsize (KiB) 12728

[startup+102.307 s]
/proc/loadavg: 2.12 2.07 2.02 3/85 18213
/proc/meminfo: memFree=1422616/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=15420 CPUtime=101.29
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 4405 822 0 0 10126 3 0 0 25 0 1 0 58744092 15790080 2790 996147200 134512640 135095119 4294956304 18446744073709551615 134617043 0 0 4096 0 0 0 0 17 1 0 0
/proc/18201/statm: 3855 2790 389 142 0 2809 0
Current children cumulated CPU time (s) 101.29
Current children cumulated vsize (KiB) 15420

[startup+162.302 s]
/proc/loadavg: 2.12 2.09 2.02 3/85 18256
/proc/meminfo: memFree=1594592/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=19452 CPUtime=161.14
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 5995 822 0 0 16108 6 0 0 25 0 1 0 58744092 19918848 4090 996147200 134512640 135095119 4294956304 18446744073709551615 134927086 0 0 4096 0 0 0 0 17 0 0 0
/proc/18201/statm: 4863 4090 389 142 0 3817 0
Current children cumulated CPU time (s) 161.14
Current children cumulated vsize (KiB) 19452

[startup+222.303 s]
/proc/loadavg: 2.12 2.10 2.03 3/85 18298
/proc/meminfo: memFree=1587424/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=29408 CPUtime=221.11
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 9117 822 0 0 22103 8 0 0 25 0 1 0 58744092 30113792 5609 996147200 134512640 135095119 4294956304 18446744073709551615 134911304 0 0 4096 0 0 0 0 17 0 0 0
/proc/18201/statm: 7352 5609 389 142 0 6306 0
Current children cumulated CPU time (s) 221.11
Current children cumulated vsize (KiB) 29408

[startup+282.301 s]
/proc/loadavg: 2.04 2.08 2.02 3/85 18298
/proc/meminfo: memFree=1583264/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=30852 CPUtime=281.08
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 10002 822 0 0 28099 9 0 0 25 0 1 0 58744092 31592448 6494 996147200 134512640 135095119 4294956304 18446744073709551615 134918190 0 0 4096 0 0 0 0 17 0 0 0
/proc/18201/statm: 7713 6494 389 142 0 6667 0
Current children cumulated CPU time (s) 281.08
Current children cumulated vsize (KiB) 30852

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

[startup+284.702 s]
/proc/loadavg: 2.04 2.08 2.02 3/85 18298
/proc/meminfo: memFree=1583136/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=30980 CPUtime=283.48
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 10047 822 0 0 28339 9 0 0 25 0 1 0 58744092 31723520 6539 996147200 134512640 135095119 4294956304 18446744073709551615 134926956 0 0 4096 0 0 0 0 17 0 0 0
/proc/18201/statm: 7745 6539 389 142 0 6699 0
Current children cumulated CPU time (s) 283.48
Current children cumulated vsize (KiB) 30980

[startup+286.302 s]
/proc/loadavg: 2.04 2.08 2.02 3/85 18298
/proc/meminfo: memFree=1582944/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=30980 CPUtime=285.08
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 10075 822 0 0 28499 9 0 0 25 0 1 0 58744092 31723520 6567 996147200 134512640 135095119 4294956304 18446744073709551615 134918271 0 0 4096 0 0 0 0 17 0 0 0
/proc/18201/statm: 7745 6567 389 142 0 6699 0
Current children cumulated CPU time (s) 285.08
Current children cumulated vsize (KiB) 30980

[startup+286.702 s]
/proc/loadavg: 2.04 2.08 2.02 3/85 18298
/proc/meminfo: memFree=1582944/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=30980 CPUtime=285.48
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 10083 822 0 0 28539 9 0 0 25 0 1 0 58744092 31723520 6575 996147200 134512640 135095119 4294956304 18446744073709551615 134927263 0 0 4096 0 0 0 0 17 0 0 0
/proc/18201/statm: 7745 6575 389 142 0 6699 0
Current children cumulated CPU time (s) 285.48
Current children cumulated vsize (KiB) 30980

[startup+286.902 s]
/proc/loadavg: 2.04 2.08 2.02 3/85 18298
/proc/meminfo: memFree=1582944/2055920 swapFree=4192812/4192956
[pid=18201] ppid=18199 vsize=31112 CPUtime=285.68
/proc/18201/stat : 18201 (pcs.small) R 18199 18201 16378 0 -1 4194304 10087 822 0 0 28559 9 0 0 25 0 1 0 58744092 31858688 6579 996147200 134512640 135095119 4294956304 18446744073709551615 134927073 0 0 4096 0 0 0 0 17 0 0 0
/proc/18201/statm: 7778 6579 389 142 0 6732 0
Current children cumulated CPU time (s) 285.68
Current children cumulated vsize (KiB) 31112

Child status: 0
Real time (s): 286.984
CPU time (s): 285.789
CPU user time (s): 285.678
CPU system time (s): 0.110983
CPU usage (%): 99.5835
Max. virtual memory (cumulated for all children) (KiB): 31112

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 285.678
system time used= 0.110983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 10912
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= 5251

runsolver used 0.378942 second user time and 0.931858 second system time

The end

Launcher Data 

Begin job on node68 at 2009-07-16 06:00:14
IDJOB=2079568
IDBENCH=56917
IDSOLVER=733
FILE ID=node68/2079568-1247716814
PBS_JOBID= 9521347
Free space on /tmp= 66420 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/rand-3-20-20/normalized-rand-3-20-20-60-632-21_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2079568-1247716814/watcher-2079568-1247716814 -o /tmp/evaluation-result-2079568-1247716814/solver-2079568-1247716814 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 1179710054 HOME/instance-2079568-1247716814.xml

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

MD5SUM BENCH= e6069f044f2ee9f97974a9c83f351574
RANDOM SEED=1179710054

node68.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		: 3000.258
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		: 3000.258
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:       1433216 kB
Buffers:         69044 kB
Cached:         266400 kB
SwapCached:          0 kB
Active:         290388 kB
Inactive:       262624 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1433216 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3196 kB
Writeback:           0 kB
Mapped:         238268 kB
Slab:            52996 kB
Committed_AS:   819296 kB
PageTables:       3488 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= 66416 MiB
End job on node68 at 2009-07-16 06:05:01