Trace number 1092793

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
Sugar v1.13+minisatUNSAT 1.13083 1.21808

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 benchmark0.028995
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 (download as text)

0.00/0.04	c 0	Sugar v1-13 + HOME/minisat
0.00/0.04	c 0	BEGIN Tue Jul  8 03:06:02 2008
0.00/0.04	c 0	PID 3235
0.00/0.05	c 0	HOST node1.alineos.net
0.00/0.05	c 0	CONVERTING HOME/instance-1092793-1215479161.xml TO HOME/temp.csp
0.00/0.05	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-13.jar' jp.ac.kobe_u.cs.sugar.XML2CSP 'HOME/instance-1092793-1215479161.xml' 'HOME/temp.csp'
0.04/0.39	c 0	1 domains, 32 variables, 2 predicates, 0 relations, 520 constraints
0.04/0.42	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.04/0.42	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-13.jar' jp.ac.kobe_u.cs.sugar.SugarMain -competition -encode 'HOME/temp.csp' 'HOME/temp.cnf' 'HOME/temp.map'
0.38/0.50	c 0	Parsing HOME/temp.csp
0.38/0.62	c 0	parsed 555 expressions
0.38/0.63	c 0	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
0.38/0.63	c 0	Converting to clausal form CSP
0.38/0.67	c 0	converted 56 (10%) expressions
0.38/0.69	c 0	converted 111 (20%) expressions
0.38/0.71	c 0	converted 167 (30%) expressions
0.38/0.72	c 0	converted 222 (40%) expressions
0.38/0.74	c 0	converted 278 (50%) expressions
0.38/0.80	c 0	converted 333 (60%) expressions
0.38/0.81	c 0	converted 389 (70%) expressions
0.38/0.83	c 0	converted 444 (80%) expressions
0.38/0.83	c 0	converted 500 (90%) expressions
0.38/0.83	c 0	converted 555 (100%) expressions
0.38/0.83	c 0	CSP : 32 integers, 0 booleans, 544 clauses, largest domain size 32
0.38/0.83	c 0	Heap : 1 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.38/0.83	c 0	Propagation in CSP
0.38/0.87	c 0	528 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.38/0.87	c 0	CSP : 32 integers, 0 booleans, 544 clauses, largest domain size 26
0.38/0.87	c 0	Heap : 0 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.38/0.87	c 0	Simplifing CSP by introducing new Boolean variables
0.38/0.89	c 0	CSP : 32 integers, 992 booleans, 1536 clauses, largest domain size 26
0.38/0.89	c 0	Heap : 1 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.38/0.92	c 0	Encoding CSP to SAT : HOME/temp.cnf
0.38/0.93	c 1	4 (10%) CSP integer variables are encoded (78 clauses, 749 bytes)
0.38/0.93	c 1	7 (20%) CSP integer variables are encoded (105 clauses, 1015 bytes)
0.38/0.93	c 1	10 (30%) CSP integer variables are encoded (153 clauses, 1543 bytes)
0.38/0.93	c 1	13 (40%) CSP integer variables are encoded (198 clauses, 2038 bytes)
0.38/0.93	c 1	16 (50%) CSP integer variables are encoded (216 clauses, 2236 bytes)
0.38/0.93	c 1	20 (60%) CSP integer variables are encoded (294 clauses, 3094 bytes)
0.38/0.93	c 1	23 (70%) CSP integer variables are encoded (321 clauses, 3391 bytes)
0.38/0.93	c 1	26 (80%) CSP integer variables are encoded (369 clauses, 3919 bytes)
0.38/0.93	c 1	29 (90%) CSP integer variables are encoded (414 clauses, 4414 bytes)
0.38/0.93	c 1	32 (100%) CSP integer variables are encoded (432 clauses, 4612 bytes)
0.38/0.96	c 1	154 (10%) CSP clauses are encoded (1929 clauses, 25394 bytes)
0.38/0.96	c 1	308 (20%) CSP clauses are encoded (2978 clauses, 39980 bytes)
0.38/0.97	c 1	461 (30%) CSP clauses are encoded (3597 clauses, 48500 bytes)
0.38/0.97	c 1	615 (40%) CSP clauses are encoded (3867 clauses, 51887 bytes)
0.38/0.99	c 1	768 (50%) CSP clauses are encoded (4812 clauses, 65962 bytes)
0.38/0.99	c 1	922 (60%) CSP clauses are encoded (6053 clauses, 85228 bytes)
0.38/0.99	c 1	1076 (70%) CSP clauses are encoded (6752 clauses, 96123 bytes)
0.38/1.00	c 1	1229 (80%) CSP clauses are encoded (7623 clauses, 109804 bytes)
0.38/1.00	c 1	1383 (90%) CSP clauses are encoded (8768 clauses, 127739 bytes)
0.38/1.01	c 1	1536 (100%) CSP clauses are encoded (9650 clauses, 141651 bytes)
0.38/1.01	c 1	1536 CSP clauses encoded
0.38/1.01	c 1	Writing map file : HOME/temp.map
0.38/1.01	c 1	Heap : 1 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.38/1.01	c 1	SAT : 1456 SAT variables, 9650 SAT clauses, 141651 bytes
0.38/1.01	c 1	Heap : 1 MB used (max 728 MB), NonHeap : 14 MB used (max 121 MB)
0.38/1.05	c 1	SOLVING HOME/temp.cnf
0.38/1.05	c 1	CMD HOME/minisat 'HOME/temp.cnf' 'HOME/temp.out'
0.38/1.06	c 1	This is MiniSat 2.0 beta
0.38/1.06	c 1	WARNING: for repeatability, setting FPU to use double precision
0.38/1.06	c 1	============================[ Problem Statistics ]=============================
0.38/1.06	c 1	|                                                                             |
0.38/1.06	c 1	|  Number of variables:  1456                                                 |
0.38/1.06	c 1	|  Number of clauses:    9650                                                 |
0.38/1.06	c 1	|  Parsing time:         0.00         s                                       |
0.38/1.06	c 1	============================[ Search Statistics ]==============================
0.38/1.06	c 1	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.38/1.06	c 1	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.38/1.06	c 1	===============================================================================
0.38/1.06	c 1	|         0 |    1240     9434    25938 |     3144        0    nan |  0.000 % |
0.38/1.08	c 1	|       101 |    1240     9434    25938 |     3459      101      6 | 14.835 % |
0.38/1.10	c 1	===============================================================================
0.38/1.10	c 1	restarts              : 2
0.38/1.10	c 1	conflicts             : 228            (6001 /sec)
0.38/1.10	c 1	decisions             : 374            (1.07 % random) (9844 /sec)
0.38/1.10	c 1	propagations          : 78343          (2061983 /sec)
0.38/1.10	c 1	conflict literals     : 1151           (41.69 % deleted)
0.38/1.10	c 1	Memory used           : 2.18 MB
0.38/1.10	c 1	CPU time              : 0.037994 s
0.38/1.10	c 1	
0.38/1.10	c 1	UNSATISFIABLE
0.38/1.10	c 1	DECODING HOME/temp.out WITH HOME/temp.map
0.38/1.10	c 1	CMD java -Xmx700M -cp 'HOME/sugar-v1-13.jar' jp.ac.kobe_u.cs.sugar.SugarMain -competition -decode 'HOME/temp.out' 'HOME/temp.map'
1.00/1.18	c 1	Decoding HOME/temp.out
1.00/1.20	s UNSATISFIABLE
1.00/1.21	c 1	Heap : 0 MB used (max 728 MB), NonHeap : 13 MB used (max 121 MB)
1.00/1.21	c 1	CPU 1 (0.03 0.01 0.97 0.1)
1.00/1.21	c 1	END Tue Jul  8 03:06:03 2008

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-1092793-1215479161/watcher-1092793-1215479161 -o /tmp/evaluation-result-1092793-1215479161/solver-1092793-1215479161 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/sugar -c -vv -java=java -Xmx700M -jar=HOME/sugar-v1-13.jar -solver=HOME/minisat -tmp=HOME/temp HOME/instance-1092793-1215479161.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): 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: 1.86 1.97 1.87 4/81 3235
/proc/meminfo: memFree=1831896/2055920 swapFree=4192812/4192956
[pid=3235] ppid=3233 vsize=18572 CPUtime=0
/proc/3235/stat : 3235 (runsolver) R 3233 3235 2734 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 4619650 19017728 292 996147200 4194304 4296836 548682068272 18446744073709551615 259353275687 0 0 4096 24578 0 0 0 17 1 0 0
/proc/3235/statm: 4643 292 257 25 0 2626 0

[startup+0.102618 s]
/proc/loadavg: 1.86 1.97 1.87 4/81 3235
/proc/meminfo: memFree=1831896/2055920 swapFree=4192812/4192956
[pid=3235] ppid=3233 vsize=13600 CPUtime=0.04
/proc/3235/stat : 3235 (sugar) S 3233 3235 2734 0 -1 4194304 900 127 0 0 3 1 0 0 21 0 1 0 4619650 13926400 796 996147200 4194304 4206940 548682068608 18446744073709551615 259362173026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/3235/statm: 3400 796 370 3 0 500 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13600

[startup+0.202639 s]
/proc/loadavg: 1.86 1.97 1.87 4/81 3235
/proc/meminfo: memFree=1831896/2055920 swapFree=4192812/4192956
[pid=3235] ppid=3233 vsize=13600 CPUtime=0.04
/proc/3235/stat : 3235 (sugar) S 3233 3235 2734 0 -1 4194304 900 127 0 0 3 1 0 0 21 0 1 0 4619650 13926400 796 996147200 4194304 4206940 548682068608 18446744073709551615 259362173026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/3235/statm: 3400 796 370 3 0 500 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13600

[startup+0.302646 s]
/proc/loadavg: 1.86 1.97 1.87 4/81 3235
/proc/meminfo: memFree=1831896/2055920 swapFree=4192812/4192956
[pid=3235] ppid=3233 vsize=13600 CPUtime=0.04
/proc/3235/stat : 3235 (sugar) S 3233 3235 2734 0 -1 4194304 900 127 0 0 3 1 0 0 21 0 1 0 4619650 13926400 796 996147200 4194304 4206940 548682068608 18446744073709551615 259362173026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/3235/statm: 3400 796 370 3 0 500 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13600

[startup+0.701686 s]
/proc/loadavg: 1.86 1.97 1.87 4/81 3235
/proc/meminfo: memFree=1831896/2055920 swapFree=4192812/4192956
[pid=3235] ppid=3233 vsize=13600 CPUtime=0.38
/proc/3235/stat : 3235 (sugar) S 3233 3235 2734 0 -1 4194304 973 4536 0 1 3 1 30 4 15 0 1 0 4619650 13926400 797 996147200 4194304 4206940 548682068608 18446744073709551615 259362173026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/3235/statm: 3400 797 370 3 0 500 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 13600

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

[startup+0.801701 s]
/proc/loadavg: 1.86 1.97 1.87 4/81 3235
/proc/meminfo: memFree=1831896/2055920 swapFree=4192812/4192956
[pid=3235] ppid=3233 vsize=13600 CPUtime=0.38
/proc/3235/stat : 3235 (sugar) S 3233 3235 2734 0 -1 4194304 973 4536 0 1 3 1 30 4 15 0 1 0 4619650 13926400 797 996147200 4194304 4206940 548682068608 18446744073709551615 259362173026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/3235/statm: 3400 797 370 3 0 500 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 13600

[startup+1.20675 s]
/proc/loadavg: 1.86 1.97 1.87 3/82 3260
/proc/meminfo: memFree=1829448/2055920 swapFree=4192812/4192956
[pid=3235] ppid=3233 vsize=13600 CPUtime=1
/proc/3235/stat : 3235 (sugar) S 3233 3235 2734 0 -1 4194304 1089 11650 0 2 3 1 88 8 16 0 1 0 4619650 13926400 798 996147200 4194304 4206940 548682068608 18446744073709551615 259362173026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/3235/statm: 3400 798 370 3 0 500 0
Current children cumulated CPU time (s) 1
Current children cumulated vsize (KiB) 13600

Child status: 0
Real time (s): 1.21808
CPU time (s): 1.13083
CPU user time (s): 1.00785
CPU system time (s): 0.122981
CPU usage (%): 92.8369
Max. virtual memory (cumulated for all children) (KiB): 13600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.00785
system time used= 0.122981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16416
page faults= 3
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1651
involuntary context switches= 1607

runsolver used 0.007998 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node1 at 2008-07-08 03:06:02
IDJOB=1092793
IDBENCH=58657
IDSOLVER=346
FILE ID=node1/1092793-1215479161
PBS_JOBID= 7888637
Free space on /tmp= 66512 MiB

SOLVER NAME= Sugar v1.13+minisat
BENCH NAME= CPAI08/csp/langford4/normalized-langford-4-8.xml
COMMAND LINE= DIR/sugar -c -vv -java="java -Xmx700M" -jar="DIR/sugar-v1-13.jar" -solver="DIR/minisat" -tmp="TMPDIR/temp" BENCHNAME
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1092793-1215479161/watcher-1092793-1215479161 -o /tmp/evaluation-result-1092793-1215479161/solver-1092793-1215479161 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/sugar -c -vv -java="java -Xmx700M" -jar="HOME/sugar-v1-13.jar" -solver="HOME/minisat" -tmp="HOME/temp" HOME/instance-1092793-1215479161.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= e02ab284be8165bbf8650c2ca610d92a
RANDOM SEED=125439950

node1.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		: 3000.244
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		: 3000.244
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:       1832376 kB
Buffers:          5692 kB
Cached:         112624 kB
SwapCached:        140 kB
Active:         142920 kB
Inactive:        47276 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1832376 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1592 kB
Writeback:           0 kB
Mapped:          91948 kB
Slab:            18480 kB
Committed_AS:   173404 kB
PageTables:       2016 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= 66512 MiB
End job on node1 at 2008-07-08 03:06:03