Trace number 2080498

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 v1.14.6+minisatUNSAT 1.00785 1.1308

General information on the benchmark

Namecsp/queensKnights/
normalized-queensKnights-15-5-add.xml
MD5SUMf79a29efc9f65a8d195d10c1647254fc
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 benchmark1.00785
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints115
Maximum constraint arity2
Maximum domain size225
Number of constraints which are defined in extension0
Number of constraints which are defined in intension115
Global constraints used (with number of constraints)

Solver Data 

0.03/0.07	c 0	Sugar v1-14-6 + HOME/minisat
0.03/0.07	c 0	BEGIN Sun Jul 12 05:40:16 2009
0.03/0.07	c 0	PID 22708
0.03/0.08	c 0	HOST node47.alineos.net
0.03/0.08	c 0	CONVERTING HOME/instance-2080498-1247370015.xml TO HOME/temp.csp
0.03/0.08	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-14-6.jar' jp.ac.kobe_u.cs.sugar.XML2CSP -v -v 'HOME/instance-2080498-1247370015.xml' 'HOME/temp.csp'
0.06/0.30	c 0	2 domains, 20 variables, 3 predicates, 0 relations, 115 constraints
0.06/0.34	c 0	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.06/0.34	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-14-6.jar' jp.ac.kobe_u.cs.sugar.SugarMain -v -v -competition -encode 'HOME/temp.csp' 'HOME/temp.cnf' 'HOME/temp.map'
0.26/0.42	c 0	Parsing HOME/temp.csp
0.26/0.45	c 0	parsed 140 expressions
0.26/0.46	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.26/0.46	c 0	Converting to clausal form CSP
0.26/0.48	c 0	converted 14 (10%) expressions
0.26/0.50	c 0	converted 28 (20%) expressions
0.26/0.52	c 0	converted 42 (30%) expressions
0.26/0.54	c 0	converted 56 (40%) expressions
0.26/0.55	c 0	converted 70 (50%) expressions
0.26/0.56	c 0	converted 84 (60%) expressions
0.26/0.58	c 0	converted 98 (70%) expressions
0.26/0.65	c 0	converted 112 (80%) expressions
0.26/0.66	c 0	converted 126 (90%) expressions
0.26/0.67	c 0	converted 140 (100%) expressions
0.26/0.67	c 0	CSP : 40 integers, 115 booleans, 510 clauses, largest domain size 225
0.26/0.67	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.26/0.67	c 0	Propagation in CSP
0.26/0.68	c 0	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.26/0.68	c 0	CSP : 40 integers, 115 booleans, 510 clauses, largest domain size 225
0.26/0.68	c 0	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.26/0.69	c 0	Simplifing CSP by introducing new Boolean variables
0.26/0.70	c 0	CSP : 40 integers, 583 booleans, 978 clauses, largest domain size 225
0.26/0.70	c 0	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.26/0.73	c 0	Encoding CSP to SAT : HOME/temp.cnf
0.26/0.73	c 0	4 (10%) CSP integer variables are encoded (52 clauses, 515 bytes)
0.26/0.73	c 0	8 (20%) CSP integer variables are encoded (104 clauses, 1008 bytes)
0.26/0.73	c 0	12 (30%) CSP integer variables are encoded (156 clauses, 1580 bytes)
0.26/0.74	c 0	16 (40%) CSP integer variables are encoded (418 clauses, 4462 bytes)
0.26/0.74	c 0	20 (50%) CSP integer variables are encoded (1310 clauses, 14933 bytes)
0.26/0.74	c 0	24 (60%) CSP integer variables are encoded (1362 clauses, 15609 bytes)
0.26/0.74	c 0	28 (70%) CSP integer variables are encoded (1414 clauses, 16285 bytes)
0.26/0.74	c 0	32 (80%) CSP integer variables are encoded (1466 clauses, 16961 bytes)
0.26/0.75	c 0	36 (90%) CSP integer variables are encoded (1518 clauses, 17637 bytes)
0.26/0.75	c 0	40 (100%) CSP integer variables are encoded (1570 clauses, 18313 bytes)
0.26/0.76	c 0	98 (10%) CSP clauses are encoded (2392 clauses, 30111 bytes)
0.26/0.77	c 0	196 (20%) CSP clauses are encoded (3176 clauses, 41826 bytes)
0.26/0.77	c 0	294 (30%) CSP clauses are encoded (3968 clauses, 53770 bytes)
0.26/0.78	c 0	392 (40%) CSP clauses are encoded (4790 clauses, 66248 bytes)
0.26/0.78	c 0	489 (50%) CSP clauses are encoded (5627 clauses, 78968 bytes)
0.26/0.79	c 0	587 (60%) CSP clauses are encoded (6535 clauses, 93053 bytes)
0.26/0.80	c 0	685 (70%) CSP clauses are encoded (7439 clauses, 107706 bytes)
0.26/0.80	c 0	783 (80%) CSP clauses are encoded (8415 clauses, 123797 bytes)
0.26/0.81	c 0	881 (90%) CSP clauses are encoded (12841 clauses, 199730 bytes)
0.26/0.82	c 0	978 (100%) CSP clauses are encoded (16828 clauses, 269948 bytes)
0.26/0.82	c 0	978 CSP clauses encoded
0.26/0.82	c 0	Writing map file : HOME/temp.map
0.26/0.82	c 0	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.26/0.82	c 0	SAT : 2193 SAT variables, 16828 SAT clauses, 269948 bytes
0.26/0.82	c 0	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.26/0.88	c 0	SOLVING HOME/temp.cnf
0.26/0.88	c 0	CMD HOME/minisat 'HOME/temp.cnf' 'HOME/temp.out'
0.26/0.88	c 0	This is MiniSat 2.0 beta
0.26/0.88	c 0	WARNING: for repeatability, setting FPU to use double precision
0.26/0.88	c 0	============================[ Problem Statistics ]=============================
0.26/0.88	c 0	|                                                                             |
0.26/0.88	c 0	|  Number of variables:  2193                                                 |
0.26/0.88	c 0	|  Number of clauses:    16828                                                |
0.26/0.89	c 0	|  Parsing time:         0.01         s                                       |
0.26/0.89	c 0	============================[ Search Statistics ]==============================
0.26/0.89	c 0	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.26/0.89	c 0	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.26/0.89	c 0	===============================================================================
0.26/0.89	c 0	|         0 |    2192    16827    47298 |     5609        0    nan |  0.000 % |
0.75/0.90	c 0	|       101 |    2191    16827    47298 |     6169      100     21 |  0.092 % |
0.75/0.90	c 0	|       252 |    2191    16827    47298 |     6786      251     14 |  0.092 % |
0.75/0.92	c 0	|       478 |    2191    16827    47298 |     7465      477     11 |  0.091 % |
0.75/0.94	c 0	|       815 |    2191    16799    47214 |     8212      813      9 |  0.091 % |
0.75/0.97	c 1	|      1321 |    2191    16799    47214 |     9033     1319      8 |  0.091 % |
0.86/1.01	c 1	===============================================================================
0.86/1.01	c 1	restarts              : 6
0.86/1.01	c 1	conflicts             : 1878           (15147 /sec)
0.86/1.01	c 1	decisions             : 2746           (1.17 % random) (22149 /sec)
0.86/1.01	c 1	propagations          : 370111         (2985224 /sec)
0.86/1.01	c 1	conflict literals     : 14146          (18.07 % deleted)
0.86/1.01	c 1	Memory used           : 2.62 MB
0.86/1.01	c 1	CPU time              : 0.123981 s
0.86/1.01	c 1	
0.86/1.01	c 1	UNSATISFIABLE
0.86/1.01	c 1	DECODING HOME/temp.out WITH HOME/temp.map
0.86/1.01	c 1	CMD java -Xmx700M -cp 'HOME/sugar-v1-14-6.jar' jp.ac.kobe_u.cs.sugar.SugarMain -v -v -competition -decode 'HOME/temp.out' 'HOME/temp.map'
0.86/1.09	c 1	Decoding HOME/temp.out
0.88/1.11	s UNSATISFIABLE
0.88/1.12	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.88/1.13	c 1	CPU 0.98 (0.06 0.01 0.82 0.09)
0.88/1.13	c 1	END Sun Jul 12 05:40:17 2009

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-2080498-1247370015/watcher-2080498-1247370015 -o /tmp/evaluation-result-2080498-1247370015/solver-2080498-1247370015 -C 1800 -W 2000 -M 900 HOME/sugar -c -vv -memlimit=900 -jar=HOME/sugar-v1-14-6.jar -solver=HOME/minisat -tmp=HOME/temp HOME/instance-2080498-1247370015.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: 2.21 2.17 2.07 4/73 22708
/proc/meminfo: memFree=1369352/2055920 swapFree=4192820/4192956
[pid=22708] ppid=22706 vsize=18576 CPUtime=0
/proc/22708/stat : 22708 (runsolver) R 22706 22708 20860 0 -1 4194368 15 0 0 0 0 0 0 0 20 0 1 0 24065262 19021824 284 996147200 4194304 4302564 548682068304 18446744073709551615 208717540647 0 0 4096 24578 0 0 0 17 1 0 0
/proc/22708/statm: 4644 284 249 26 0 2626 0

[startup+0.046775 s]
/proc/loadavg: 2.21 2.17 2.07 4/73 22708
/proc/meminfo: memFree=1369352/2055920 swapFree=4192820/4192956
[pid=22708] ppid=22706 vsize=13468 CPUtime=0.03
/proc/22708/stat : 22708 (sugar) R 22706 22708 20860 0 -1 4194304 761 0 0 0 2 1 0 0 20 0 1 0 24065262 13791232 729 996147200 4194304 4206940 548682068608 18446744073709551615 208735529969 0 0 4224 0 0 0 0 17 1 0 0
/proc/22708/statm: 3367 729 338 3 0 467 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13468

[startup+0.104987 s]
/proc/loadavg: 2.21 2.17 2.07 4/73 22708
/proc/meminfo: memFree=1369352/2055920 swapFree=4192820/4192956
[pid=22708] ppid=22706 vsize=16868 CPUtime=0.06
/proc/22708/stat : 22708 (sugar) S 22706 22708 20860 0 -1 4194304 1227 128 0 0 5 1 0 0 21 0 1 0 24065262 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 208726437986 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/22708/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.301796 s]
/proc/loadavg: 2.21 2.17 2.07 4/73 22708
/proc/meminfo: memFree=1369352/2055920 swapFree=4192820/4192956
[pid=22708] ppid=22706 vsize=16868 CPUtime=0.06
/proc/22708/stat : 22708 (sugar) S 22706 22708 20860 0 -1 4194304 1245 128 0 0 5 1 0 0 15 0 1 0 24065262 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 208726437986 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/22708/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.701842 s]
/proc/loadavg: 2.21 2.17 2.07 4/73 22708
/proc/meminfo: memFree=1369352/2055920 swapFree=4192820/4192956
[pid=22708] ppid=22706 vsize=16868 CPUtime=0.26
/proc/22708/stat : 22708 (sugar) S 22706 22708 20860 0 -1 4194304 1310 4200 0 1 5 1 18 2 15 0 1 0 24065262 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 208726437986 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/22708/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.26
Current children cumulated vsize (KiB) 16868

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

[startup+1.10689 s]
/proc/loadavg: 2.21 2.17 2.07 3/76 22732
/proc/meminfo: memFree=1364592/2055920 swapFree=4192820/4192956
[pid=22708] ppid=22706 vsize=16868 CPUtime=0.88
/proc/22708/stat : 22708 (sugar) S 22706 22708 20860 0 -1 4194304 1445 11460 0 2 6 1 73 8 16 0 1 0 24065262 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 208726437986 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/22708/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 0.88
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 1.1308
CPU time (s): 1.00785
CPU user time (s): 0.887865
CPU system time (s): 0.119981
CPU usage (%): 89.1268
Max. virtual memory (cumulated for all children) (KiB): 24900

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.887865
system time used= 0.119981
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16659
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= 1134
involuntary context switches= 1051

runsolver used 0.005999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node47 at 2009-07-12 05:40:16
IDJOB=2080498
IDBENCH=57096
IDSOLVER=739
FILE ID=node47/2080498-1247370015
PBS_JOBID= 9507139
Free space on /tmp= 66468 MiB

SOLVER NAME= Sugar v1.14.6+minisat
BENCH NAME= CPAI08/csp/queensKnights/normalized-queensKnights-15-5-add.xml
COMMAND LINE= DIR/sugar -c -vv -memlimit=MEMLIMIT -jar="DIR/sugar-v1-14-6.jar" -solver="DIR/minisat" -tmp="TMPDIR/temp" BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080498-1247370015/watcher-2080498-1247370015 -o /tmp/evaluation-result-2080498-1247370015/solver-2080498-1247370015 -C 1800 -W 2000 -M 900  HOME/sugar -c -vv -memlimit=900 -jar="HOME/sugar-v1-14-6.jar" -solver="HOME/minisat" -tmp="HOME/temp" HOME/instance-2080498-1247370015.xml

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

MD5SUM BENCH= f79a29efc9f65a8d195d10c1647254fc
RANDOM SEED=1334305267

node47.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		: 3000.218
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		: 3000.218
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:       1369832 kB
Buffers:         67476 kB
Cached:         527932 kB
SwapCached:        136 kB
Active:          76600 kB
Inactive:       540260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1369832 kB
SwapTotal:     4192956 kB
SwapFree:      4192820 kB
Dirty:            1412 kB
Writeback:           0 kB
Mapped:          32032 kB
Slab:            54416 kB
Committed_AS:   245132 kB
PageTables:       1840 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= 66468 MiB
End job on node47 at 2009-07-12 05:40:17