Trace number 1048905

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
MDG-probe 2008-06-27UNSAT 2.51962 2.55272

DiagnosticValue
ASSIGNMENTS0
CHECKS45234

General information on the benchmark

Namecsp/pseudo/ssa/
normalized-ssa-6288-047.xml
MD5SUMdd00c5def4c55b065ec455ee1bcb23cb
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 benchmark2.51962
Satisfiable
(Un)Satisfiability was proved
Number of variables20820
Number of constraints44644
Maximum constraint arity6
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension44644
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.21	c mistral-prime version 1.313
0.18/0.21	c 
0.18/0.21	c Parsing xml file
0.18/0.21	c          domains...............     0	(2 domains)
0.18/0.21	c          variables.............  0.13	(20820 variables)
0.18/0.21	c          predicates............  0.01	(6 predicates)
0.18/0.21	c          constraints...........  1.87	(44644 constraints)
1.97/2.03	c Parsing time:   2.01
1.97/2.03	c
1.97/2.03	c Building model
1.97/2.08	c         0 AllDifferent constraints infered
2.17/2.26	c         0 constants
2.17/2.26	c     20816 Boolean variables    (+0)
2.17/2.26	c         0 range variables      (+0)
2.17/2.26	c         0 domain (b) variables (+0)
2.17/2.26	c         0 domain (l) variables (+0)
2.17/2.26	c     44644 constraints          (+0)
2.17/2.26	c         0 values 
2.17/2.26	c Building time:   0.22
2.17/2.26	c
2.17/2.26	c Solving instance
2.17/2.26	c          heuristic = dom/wdeg
2.17/2.26	c          Randomized probing iteration = 100
2.17/2.26	c          probing limit = 30
2.17/2.26	c          level based weights = no
2.17/2.26	c          impact probing = no
2.17/2.26	c          restart policy = No restart
2.17/2.26	c          probing   0.08
2.27/2.35	c          Probing Nodes     0
2.27/2.35	c Solving time:   0.08
2.27/2.35	c
2.27/2.35	s UNSATISFIABLE
2.27/2.35	d CHECKS 45234
2.27/2.35	d ASSIGNMENTS 0

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-1048905-1215044222/watcher-1048905-1215044222 -o /tmp/evaluation-result-1048905-1215044222/solver-1048905-1215044222 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/xsolve HOME/instance-1048905-1215044222.xml -v 1 -rs 734197987 -probe 1 -ph 0 -heu dom/wdeg -res no 

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: 1.97 1.98 1.99 4/82 23374
/proc/meminfo: memFree=1863088/2055920 swapFree=4180812/4192956
[pid=23374] ppid=23372 vsize=18572 CPUtime=0
/proc/23374/stat : 23374 (runsolver) R 23372 23374 21001 0 -1 4194368 15 0 0 0 0 0 0 0 19 0 1 0 238896020 19017728 292 996147200 4194304 4296836 548682068352 18446744073709551615 224264776999 0 0 4096 24578 0 0 0 17 0 0 0
/proc/23374/statm: 4643 292 257 25 0 2626 0

[startup+0.0505061 s]
/proc/loadavg: 1.97 1.98 1.99 4/82 23374
/proc/meminfo: memFree=1863088/2055920 swapFree=4180812/4192956
[pid=23374] ppid=23372 vsize=6380 CPUtime=0.03
/proc/23374/stat : 23374 (xsolve) R 23372 23374 21001 0 -1 4194304 816 0 0 0 3 0 0 0 18 0 1 0 238896020 6533120 782 996147200 134512640 135239859 4294956144 18446744073709551615 134618075 0 0 4096 0 0 0 0 17 1 0 0
/proc/23374/statm: 1595 782 368 177 0 498 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 6380

[startup+0.101515 s]
/proc/loadavg: 1.97 1.98 1.99 4/82 23374
/proc/meminfo: memFree=1863088/2055920 swapFree=4180812/4192956
[pid=23374] ppid=23372 vsize=7964 CPUtime=0.08
/proc/23374/stat : 23374 (xsolve) R 23372 23374 21001 0 -1 4194304 1253 0 0 0 8 0 0 0 18 0 1 0 238896020 8155136 1219 996147200 134512640 135239859 4294956144 18446744073709551615 6983375 0 0 4096 0 0 0 0 17 1 0 0
/proc/23374/statm: 1991 1219 368 177 0 894 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 7964

[startup+0.301536 s]
/proc/loadavg: 1.97 1.98 1.99 4/82 23374
/proc/meminfo: memFree=1863088/2055920 swapFree=4180812/4192956
[pid=23374] ppid=23372 vsize=11628 CPUtime=0.28
/proc/23374/stat : 23374 (xsolve) R 23372 23374 21001 0 -1 4194304 2208 0 0 0 27 1 0 0 19 0 1 0 238896020 11907072 2174 996147200 134512640 135239859 4294956144 18446744073709551615 134649476 0 0 4096 0 0 0 0 17 1 0 0
/proc/23374/statm: 2907 2174 396 177 0 1810 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 11628

[startup+0.701575 s]
/proc/loadavg: 1.97 1.98 1.99 4/82 23374
/proc/meminfo: memFree=1863088/2055920 swapFree=4180812/4192956
[pid=23374] ppid=23372 vsize=17472 CPUtime=0.68
/proc/23374/stat : 23374 (xsolve) R 23372 23374 21001 0 -1 4194304 3700 0 0 0 66 2 0 0 23 0 1 0 238896020 17891328 3633 996147200 134512640 135239859 4294956144 18446744073709551615 134618072 0 0 4096 0 0 0 0 17 1 0 0
/proc/23374/statm: 4368 3633 396 177 0 3271 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 17472

[startup+1.50167 s]
/proc/loadavg: 1.97 1.98 1.99 3/83 23375
/proc/meminfo: memFree=1843688/2055920 swapFree=4180812/4192956
[pid=23374] ppid=23372 vsize=27996 CPUtime=1.47
/proc/23374/stat : 23374 (xsolve) R 23372 23374 21001 0 -1 4194304 6432 0 0 0 143 4 0 0 25 0 1 0 238896020 28667904 6202 996147200 134512640 135239859 4294956144 18446744073709551615 134622735 0 0 4096 0 0 0 0 17 1 0 0
/proc/23374/statm: 6999 6202 396 177 0 5902 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 27996

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

[startup+2.30175 s]
/proc/loadavg: 1.97 1.98 1.99 3/83 23375
/proc/meminfo: memFree=1826536/2055920 swapFree=4180812/4192956
[pid=23374] ppid=23372 vsize=63392 CPUtime=2.27
/proc/23374/stat : 23374 (xsolve) R 23372 23374 21001 0 -1 4194304 15195 0 0 0 219 8 0 0 25 0 1 0 238896020 64913408 14932 996147200 134512640 135239859 4294956144 18446744073709551615 134543107 0 0 4096 0 0 0 0 17 1 0 0
/proc/23374/statm: 15848 14932 417 177 0 14751 0
Current children cumulated CPU time (s) 2.27
Current children cumulated vsize (KiB) 63392

[startup+2.50178 s]
/proc/loadavg: 1.97 1.98 1.99 3/83 23375
/proc/meminfo: memFree=1826536/2055920 swapFree=4180812/4192956
[pid=23374] ppid=23372 vsize=34440 CPUtime=2.46
/proc/23374/stat : 23374 (xsolve) R 23372 23374 21001 0 -1 4194304 15286 0 0 0 238 8 0 0 25 0 1 0 238896020 35266560 7790 996147200 134512640 135239859 4294956144 18446744073709551615 134615337 0 0 4096 0 0 0 0 17 1 0 0
/proc/23374/statm: 8610 7790 426 177 0 7513 0
Current children cumulated CPU time (s) 2.46
Current children cumulated vsize (KiB) 34440

Child status: 0
Real time (s): 2.55272
CPU time (s): 2.51962
CPU user time (s): 2.42663
CPU system time (s): 0.092985
CPU usage (%): 98.7031
Max. virtual memory (cumulated for all children) (KiB): 63788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.42663
system time used= 0.092985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 15288
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= 7
involuntary context switches= 143

runsolver used 0.007998 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node82 at 2008-07-03 02:17:02
IDJOB=1048905
IDBENCH=54522
IDSOLVER=342
FILE ID=node82/1048905-1215044222
PBS_JOBID= 7875014
Free space on /tmp= 66472 MiB

SOLVER NAME= MDG-probe 2008-06-27
BENCH NAME= CPAI08/csp/pseudo/ssa/normalized-ssa-6288-047.xml
COMMAND LINE= HOME/xsolve BENCHNAME -v 1 -rs RANDOMSEED -probe 1 -ph 0 -heu dom/wdeg -res no
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1048905-1215044222/watcher-1048905-1215044222 -o /tmp/evaluation-result-1048905-1215044222/solver-1048905-1215044222 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/xsolve HOME/instance-1048905-1215044222.xml -v 1 -rs 734197987 -probe 1 -ph 0 -heu dom/wdeg -res no

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= dd00c5def4c55b065ec455ee1bcb23cb
RANDOM SEED=734197987

node82.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		: 3000.239
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	: 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		: 3000.239
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1863632 kB
Buffers:          8184 kB
Cached:         105744 kB
SwapCached:       5412 kB
Active:          91496 kB
Inactive:        45820 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1863632 kB
SwapTotal:     4192956 kB
SwapFree:      4180812 kB
Dirty:           15684 kB
Writeback:           0 kB
Mapped:          39792 kB
Slab:            40220 kB
Committed_AS:   470556 kB
PageTables:       1848 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= 66472 MiB
End job on node82 at 2008-07-03 02:17:05