Trace number 205493

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, and are wall clock time (not CPU 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
Diarmuid-wtdi 2006-12-21? (MO) 31.02 31.2258

General information on the benchmark

Namehanoi/
hanoi-7_ext.xml
MD5SUMc08c67f756fce77fe7d340c44cf2c4b9
Bench Category2-ARY-EXT (binary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.00685
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables126
Number of constraints125
Maximum constraint arity2
Maximum domain size2187
Number of constraints which are defined in extension125
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

c 
c 
c 
c conversion script
c 
c

Verifier Data (download as text)

ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-205493-1168167693 -o ROOT/results/node2/solver-205493-1168167693 -C 1800 -M 900 /tmp/evaluation/205493-1168167693/solver 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 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

/proc/loadavg: 1.46 1.55 1.86 3/83 5493
/proc/meminfo: memFree=1469664/2055920 swapFree=4191880/4192956
[pid=5492] ppid=5489 vsize=5352 CPUtime=0
/proc/5492/stat : 5492 (solver) S 5489 5492 4790 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 165174116 5480448 229 18446744073709551615 4194304 4889804 548682069392 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/5492/statm: 1338 229 192 169 0 49 0
[pid=5494] ppid=5492 vsize=0 CPUtime=0
/proc/5494/stat : 5494 (cp) D 5492 5492 4790 0 -1 4194308 174 0 0 0 0 0 0 0 20 0 1 0 165174116 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100051646 0 0 17 1 0 0
/proc/5494/statm: 0 0 0 0 0 0 0

[startup+0.102585 s]
/proc/loadavg: 1.46 1.55 1.86 3/83 5493
/proc/meminfo: memFree=1469664/2055920 swapFree=4191880/4192956
[pid=5492] ppid=5489 vsize=5352 CPUtime=0
/proc/5492/stat : 5492 (solver) S 5489 5492 4790 0 -1 4194304 313 174 0 0 0 0 0 0 18 0 1 0 165174116 5480448 229 18446744073709551615 4194304 4889804 548682069392 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/5492/statm: 1338 229 192 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+0.510662 s]
/proc/loadavg: 1.46 1.55 1.86 3/83 5493
/proc/meminfo: memFree=1469664/2055920 swapFree=4191880/4192956
[pid=5492] ppid=5489 vsize=5352 CPUtime=0
/proc/5492/stat : 5492 (solver) S 5489 5492 4790 0 -1 4194304 313 174 0 0 0 0 0 0 18 0 1 0 165174116 5480448 229 18446744073709551615 4194304 4889804 548682069392 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/5492/statm: 1338 229 192 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+1.33281 s]
/proc/loadavg: 1.46 1.55 1.86 3/87 5498
/proc/meminfo: memFree=1320384/2055920 swapFree=4191880/4192956
[pid=5492] ppid=5489 vsize=5352 CPUtime=0
/proc/5492/stat : 5492 (solver) S 5489 5492 4790 0 -1 4194304 313 174 0 0 0 0 0 0 18 0 1 0 165174116 5480448 229 18446744073709551615 4194304 4889804 548682069392 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/5492/statm: 1338 229 192 169 0 49 0
[pid=5497] ppid=5492 vsize=107556 CPUtime=1.28
/proc/5497/stat : 5497 (xlisp) R 5492 5492 4790 0 -1 4194304 26396 0 0 0 115 13 0 0 25 0 1 0 165174118 110137344 26356 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134865597 0 0 4096 130 0 0 0 17 1 0 0
/proc/5497/statm: 26889 26356 241 197 0 26129 0
[pid=5498] ppid=5492 vsize=2600 CPUtime=0
/proc/5498/stat : 5498 (sed) S 5492 5492 4790 0 -1 4194304 146 0 0 0 0 0 0 0 19 0 1 0 165174118 2662400 119 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 206381482066 0 0 4096 0 18446744071563648864 0 0 17 1 0 0
/proc/5498/statm: 650 119 96 11 0 54 0
Current children cumulated CPU time (s) 1.28
Current children cumulated vsize (KiB) 115508

[startup+2.97812 s]
/proc/loadavg: 1.50 1.56 1.86 3/87 5498
/proc/meminfo: memFree=1199744/2055920 swapFree=4191880/4192956
[pid=5492] ppid=5489 vsize=5352 CPUtime=0
/proc/5492/stat : 5492 (solver) S 5489 5492 4790 0 -1 4194304 313 174 0 0 0 0 0 0 18 0 1 0 165174116 5480448 229 18446744073709551615 4194304 4889804 548682069392 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/5492/statm: 1338 229 192 169 0 49 0
[pid=5497] ppid=5492 vsize=200976 CPUtime=2.93
/proc/5497/stat : 5497 (xlisp) R 5492 5492 4790 0 -1 4194304 49751 0 0 0 268 25 0 0 25 0 1 0 165174118 205799424 49711 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134684809 0 0 4096 130 0 0 0 17 1 0 0
/proc/5497/statm: 50244 49711 241 197 0 49484 0
[pid=5498] ppid=5492 vsize=2600 CPUtime=0
/proc/5498/stat : 5498 (sed) S 5492 5492 4790 0 -1 4194304 146 0 0 0 0 0 0 0 19 0 1 0 165174118 2662400 119 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 206381482066 0 0 4096 0 18446744071563648864 0 0 17 1 0 0
/proc/5498/statm: 650 119 96 11 0 54 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 208928

[startup+6.25972 s]
/proc/loadavg: 1.50 1.56 1.86 3/87 5498
/proc/meminfo: memFree=952064/2055920 swapFree=4191880/4192956
[pid=5492] ppid=5489 vsize=5352 CPUtime=0
/proc/5492/stat : 5492 (solver) S 5489 5492 4790 0 -1 4194304 313 174 0 0 0 0 0 0 18 0 1 0 165174116 5480448 229 18446744073709551615 4194304 4889804 548682069392 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/5492/statm: 1338 229 192 169 0 49 0
[pid=5497] ppid=5492 vsize=350448 CPUtime=6.19
/proc/5497/stat : 5497 (xlisp) R 5492 5492 4790 0 -1 4194304 87119 0 0 0 576 43 0 0 25 0 1 0 165174118 358858752 87079 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134627531 0 0 4096 130 0 0 0 17 1 0 0
/proc/5497/statm: 87612 87079 241 197 0 86852 0
[pid=5498] ppid=5492 vsize=2600 CPUtime=0
/proc/5498/stat : 5498 (sed) S 5492 5492 4790 0 -1 4194304 146 0 0 0 0 0 0 0 19 0 1 0 165174118 2662400 119 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 206381482066 0 0 4096 0 18446744071563648864 0 0 17 1 0 0
/proc/5498/statm: 650 119 96 11 0 54 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 358400

[startup+12.7389 s]
/proc/loadavg: 1.65 1.59 1.87 4/87 5498
/proc/meminfo: memFree=663168/2055920 swapFree=4191880/4192956
[pid=5492] ppid=5489 vsize=5352 CPUtime=0
/proc/5492/stat : 5492 (solver) S 5489 5492 4790 0 -1 4194304 313 174 0 0 0 0 0 0 18 0 1 0 165174116 5480448 229 18446744073709551615 4194304 4889804 548682069392 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/5492/statm: 1338 229 192 169 0 49 0
[pid=5497] ppid=5492 vsize=537288 CPUtime=12.64
/proc/5497/stat : 5497 (xlisp) R 5492 5492 4790 0 -1 4194304 133829 0 0 0 1197 67 0 0 25 0 1 0 165174118 550182912 133789 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134684584 0 0 4096 130 0 0 0 17 1 0 0
/proc/5497/statm: 134322 133789 241 197 0 133562 0
[pid=5498] ppid=5492 vsize=2600 CPUtime=0
/proc/5498/stat : 5498 (sed) S 5492 5492 4790 0 -1 4194304 146 0 0 0 0 0 0 0 19 0 1 0 165174118 2662400 119 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 206381482066 0 0 4096 0 18446744071563648864 0 0 17 1 0 0
/proc/5498/statm: 650 119 96 11 0 54 0
Current children cumulated CPU time (s) 12.64
Current children cumulated vsize (KiB) 545240

[startup+25.5663 s]
/proc/loadavg: 1.71 1.60 1.87 4/87 5498
/proc/meminfo: memFree=329472/2055920 swapFree=4191880/4192956
[pid=5492] ppid=5489 vsize=5352 CPUtime=0
/proc/5492/stat : 5492 (solver) S 5489 5492 4790 0 -1 4194304 313 174 0 0 0 0 0 0 18 0 1 0 165174116 5480448 229 18446744073709551615 4194304 4889804 548682069392 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/5492/statm: 1338 229 192 169 0 49 0
[pid=5497] ppid=5492 vsize=817548 CPUtime=25.4
/proc/5497/stat : 5497 (xlisp) R 5492 5492 4790 0 -1 4194304 203894 0 0 0 2439 101 0 0 25 0 1 0 165174118 837169152 203854 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134684584 0 0 4096 130 0 0 0 17 1 0 0
/proc/5497/statm: 204387 203854 241 197 0 203627 0
[pid=5498] ppid=5492 vsize=2600 CPUtime=0
/proc/5498/stat : 5498 (sed) S 5492 5492 4790 0 -1 4194304 146 0 0 0 0 0 0 0 19 0 1 0 165174118 2662400 119 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 206381482066 0 0 4096 0 18446744071563648864 0 0 17 1 0 0
/proc/5498/statm: 650 119 96 11 0 54 0
Current children cumulated CPU time (s) 25.4
Current children cumulated vsize (KiB) 825500



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+31.2143 s]
/proc/loadavg: 1.73 1.61 1.87 3/87 5498
/proc/meminfo: memFree=196544/2055920 swapFree=4191880/4192956
[pid=5492] ppid=5489 vsize=5352 CPUtime=0
/proc/5492/stat : 5492 (solver) S 5489 5492 4790 0 -1 4194304 313 174 0 0 0 0 0 0 18 0 1 0 165174116 5480448 229 18446744073709551615 4194304 4889804 548682069392 18446744073709551615 206381310788 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/5492/statm: 1338 229 192 169 0 49 0
[pid=5497] ppid=5492 vsize=929652 CPUtime=31.02
/proc/5497/stat : 5497 (xlisp) R 5492 5492 4790 0 -1 4194304 231920 0 0 0 2989 113 0 0 25 0 1 0 165174118 951963648 231880 18446744073709551615 134512640 135322396 4294956848 18446744073709551615 134866209 0 0 4096 130 0 0 0 17 1 0 0
/proc/5497/statm: 232413 231880 241 197 0 231653 0
[pid=5498] ppid=5492 vsize=2600 CPUtime=0
/proc/5498/stat : 5498 (sed) S 5492 5492 4790 0 -1 4194304 146 0 0 0 0 0 0 0 19 0 1 0 165174118 2662400 119 18446744073709551615 4194304 4240196 548682069504 18446744073709551615 206381482066 0 0 4096 0 18446744071563648864 0 0 17 1 0 0
/proc/5498/statm: 650 119 96 11 0 54 0
Current children cumulated CPU time (s) 31.02
Current children cumulated vsize (KiB) 937604

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 5492 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=3999 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=999
CPU time returned by wait4() is 0.004998
while last known CPU time is 31.02

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 31.2258
CPU time (s): 31.02
CPU user time (s): 29.89
CPU system time (s): 1.13
CPU usage (%): 99.341
Max. virtual memory (cumulated for all children) (KiB): 937604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.003999
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 633
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= 4

runsolver used 0.048992 s user time and 0.091986 s system time

The end

Launcher Data (download as text)

Begin job on node2 on Sun Jan  7 11:01:38 UTC 2007


IDJOB= 205493
IDBENCH= 4134
FILE ID= node2/205493-1168167693

PBS_JOBID= 3478709

Free space on /tmp= 66332 MiB

BENCH NAME= HOME/pub/bench/CPAI06/hanoi/hanoi-7_ext.xml
COMMAND LINE= /tmp/evaluation/205493-1168167693/solver
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node2/convwatcher-205493-1168167693 -o ROOT/results/node2/conversion-205493-1168167693 -C 600 -M 900 /tmp/evaluation/205493-1168167693/conversion /tmp/evaluation/205493-1168167693/unknown
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-205493-1168167693 -o ROOT/results/node2/solver-205493-1168167693 -C 1800 -M 900  /tmp/evaluation/205493-1168167693/solver

META MD5SUM SOLVER= d524ecf1110edbc743abd2f199c280bf
MD5SUM BENCH=  c08c67f756fce77fe7d340c44cf2c4b9

RANDOM SEED= 660236121

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1486808 kB
Buffers:         46708 kB
Cached:         395932 kB
SwapCached:        448 kB
Active:         110368 kB
Inactive:       392836 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1486808 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           11740 kB
Writeback:           0 kB
Mapped:          78704 kB
Slab:            50916 kB
Committed_AS:  3938956 kB
PageTables:       2212 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= 66310 MiB



End job on node2 on Sun Jan  7 11:03:41 UTC 2007