Trace number 2074392

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+picosatUNSAT 1.37579 1.48395

General information on the benchmark

Namecsp/
chessboardColoration/normalized-cc-6-6-2.xml
MD5SUM6d331089ced3fa3643a4429b2fd23353
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 benchmark0.18897
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of constraints225
Maximum constraint arity4
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension225
Global constraints used (with number of constraints)

Solver Data 

0.00/0.07	c 0	Sugar v1-14-6 + HOME/picosat
0.00/0.07	c 0	BEGIN Sun Jul 12 02:39:48 2009
0.00/0.07	c 0	PID 18560
0.00/0.07	c 0	HOST node82.alineos.net
0.00/0.07	c 0	CONVERTING HOME/instance-2074392-1247359188.xml TO HOME/temp.csp
0.00/0.07	c 0	CMD java -Xmx700M -cp 'HOME/sugar-v1-14-6.jar' jp.ac.kobe_u.cs.sugar.XML2CSP -v -v 'HOME/instance-2074392-1247359188.xml' 'HOME/temp.csp'
0.06/0.34	c 1	1 domains, 36 variables, 1 predicates, 0 relations, 225 constraints
0.06/0.38	c 1	ENCODING HOME/temp.csp TO HOME/temp.cnf
0.06/0.38	c 1	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'
0.33/0.45	c 1	Parsing HOME/temp.csp
0.33/0.49	c 1	parsed 263 expressions
0.33/0.50	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.33/0.50	c 1	Converting to clausal form CSP
0.33/0.52	c 1	converted 27 (10%) expressions
0.33/0.56	c 1	converted 53 (20%) expressions
0.33/0.60	c 1	converted 79 (30%) expressions
0.33/0.68	c 1	converted 106 (40%) expressions
0.33/0.69	c 1	converted 132 (50%) expressions
0.33/0.70	c 1	converted 158 (60%) expressions
0.33/0.71	c 1	converted 185 (70%) expressions
0.33/0.72	c 1	converted 211 (80%) expressions
0.33/0.72	c 1	converted 237 (90%) expressions
0.33/0.73	c 1	converted 263 (100%) expressions
0.33/0.73	c 1	CSP : 36 integers, 0 booleans, 225 clauses, largest domain size 2
0.33/0.73	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.33/0.73	c 1	Propagation in CSP
0.33/0.73	c 1	0 values, 0 unsatisfiable literals, and 0 valid clauses are removed
0.33/0.73	c 1	CSP : 36 integers, 0 booleans, 225 clauses, largest domain size 2
0.33/0.73	c 1	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.33/0.74	c 1	Simplifing CSP by introducing new Boolean variables
0.33/0.77	c 1	CSP : 36 integers, 2700 booleans, 2925 clauses, largest domain size 2
0.33/0.77	c 1	Heap : 1 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.33/0.80	c 1	Encoding CSP to SAT : HOME/temp.cnf
0.33/0.80	c 1	4 (10%) CSP integer variables are encoded (0 clauses, 64 bytes)
0.33/0.80	c 1	8 (20%) CSP integer variables are encoded (0 clauses, 64 bytes)
0.33/0.80	c 1	11 (30%) CSP integer variables are encoded (0 clauses, 64 bytes)
0.33/0.80	c 1	15 (40%) CSP integer variables are encoded (0 clauses, 64 bytes)
0.33/0.80	c 1	18 (50%) CSP integer variables are encoded (0 clauses, 64 bytes)
0.33/0.80	c 1	22 (60%) CSP integer variables are encoded (0 clauses, 64 bytes)
0.33/0.80	c 1	26 (70%) CSP integer variables are encoded (0 clauses, 64 bytes)
0.33/0.80	c 1	29 (80%) CSP integer variables are encoded (0 clauses, 64 bytes)
0.33/0.80	c 1	33 (90%) CSP integer variables are encoded (0 clauses, 64 bytes)
0.33/0.80	c 1	36 (100%) CSP integer variables are encoded (0 clauses, 64 bytes)
0.33/0.82	c 1	293 (10%) CSP clauses are encoded (564 clauses, 6351 bytes)
0.33/0.85	c 1	585 (20%) CSP clauses are encoded (1125 clauses, 12853 bytes)
0.33/0.86	c 1	878 (30%) CSP clauses are encoded (1689 clauses, 19353 bytes)
0.33/0.86	c 1	1170 (40%) CSP clauses are encoded (2250 clauses, 26278 bytes)
0.33/0.87	c 1	1463 (50%) CSP clauses are encoded (2814 clauses, 33713 bytes)
0.33/0.88	c 1	1755 (60%) CSP clauses are encoded (3375 clauses, 41266 bytes)
0.33/0.88	c 1	2048 (70%) CSP clauses are encoded (3939 clauses, 48863 bytes)
0.33/0.88	c 1	2340 (80%) CSP clauses are encoded (4500 clauses, 56476 bytes)
0.33/0.89	c 1	2633 (90%) CSP clauses are encoded (5064 clauses, 64073 bytes)
0.33/0.89	c 1	2925 (100%) CSP clauses are encoded (5625 clauses, 71686 bytes)
0.33/0.89	c 1	2925 CSP clauses encoded
0.33/0.89	c 1	Writing map file : HOME/temp.map
0.33/0.89	c 1	Heap : 2 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.33/0.89	c 1	SAT : 2736 SAT variables, 5625 SAT clauses, 71686 bytes
0.33/0.89	c 1	Heap : 2 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
0.33/0.91	c 1	SOLVING HOME/temp.cnf
0.33/0.91	c 1	CMD HOME/picosat 'HOME/temp.cnf' -o 'HOME/temp.out'
1.21/1.32	c 2	DECODING HOME/temp.out WITH HOME/temp.map
1.21/1.32	c 2	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'
1.21/1.40	c 2	Decoding HOME/temp.out
1.24/1.41	s UNSATISFIABLE
1.24/1.43	c 2	Heap : 0 MiB used (max 694 MiB), NonHeap : 13 MiB used (max 116 MiB)
1.24/1.48	c 2	CPU 1.35 (0.05 0.01 1.18 0.11)
1.24/1.48	c 2	END Sun Jul 12 02:39:50 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-2074392-1247359188/watcher-2074392-1247359188 -o /tmp/evaluation-result-2074392-1247359188/solver-2074392-1247359188 -C 1800 -W 2000 -M 900 HOME/sugar -c -vv -memlimit=900 -jar=HOME/sugar-v1-14-6.jar -solver=HOME/picosat -tmp=HOME/temp HOME/instance-2074392-1247359188.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: 1.15 1.39 1.74 4/85 18560
/proc/meminfo: memFree=1735528/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=12272 CPUtime=0
/proc/18560/stat : 18560 (sugar) R 18558 18560 16402 0 -1 4194304 359 0 0 0 0 0 0 0 18 0 1 0 22983806 12566528 327 996147200 4194304 4206940 548682068608 18446744073709551615 224273677310 0 0 4224 0 0 0 0 17 1 0 0
/proc/18560/statm: 3068 327 246 3 0 168 0

[startup+0.0942789 s]
/proc/loadavg: 1.15 1.39 1.74 4/85 18560
/proc/meminfo: memFree=1735528/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=16868 CPUtime=0.06
/proc/18560/stat : 18560 (sugar) S 18558 18560 16402 0 -1 4194304 1227 128 0 0 5 1 0 0 16 0 1 0 22983806 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 224273674338 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18560/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.101278 s]
/proc/loadavg: 1.15 1.39 1.74 4/85 18560
/proc/meminfo: memFree=1735528/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=16868 CPUtime=0.06
/proc/18560/stat : 18560 (sugar) S 18558 18560 16402 0 -1 4194304 1227 128 0 0 5 1 0 0 16 0 1 0 22983806 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 224273674338 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18560/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.301315 s]
/proc/loadavg: 1.15 1.39 1.74 4/85 18560
/proc/meminfo: memFree=1735528/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=16868 CPUtime=0.06
/proc/18560/stat : 18560 (sugar) S 18558 18560 16402 0 -1 4194304 1227 128 0 0 5 1 0 0 16 0 1 0 22983806 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 224273674338 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18560/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 16868

[startup+0.70139 s]
/proc/loadavg: 1.15 1.39 1.74 4/85 18560
/proc/meminfo: memFree=1735528/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=16868 CPUtime=0.33
/proc/18560/stat : 18560 (sugar) S 18558 18560 16402 0 -1 4194304 1309 4539 0 1 5 1 24 3 15 0 1 0 22983806 17272832 1111 996147200 4194304 4206940 548682068608 18446744073709551615 224273674338 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18560/statm: 4217 1111 409 3 0 796 0
Current children cumulated CPU time (s) 0.33
Current children cumulated vsize (KiB) 16868

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

[startup+1.10646 s]
/proc/loadavg: 1.15 1.39 1.74 3/88 18584
/proc/meminfo: memFree=1731720/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=16868 CPUtime=0.84
/proc/18560/stat : 18560 (sugar) S 18558 18560 16402 0 -1 4194304 1364 11351 0 2 5 1 71 7 16 0 1 0 22983806 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 224273674338 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18560/statm: 4217 1112 409 3 0 796 0
[pid=18583] ppid=18560 vsize=5356 CPUtime=0
/proc/18583/stat : 18583 (sh) S 18560 18560 16402 0 -1 4194304 277 0 0 0 0 0 0 0 18 0 1 0 22983898 5484544 232 996147200 4194304 4889804 548682068832 18446744073709551615 224264774468 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/18583/statm: 1339 232 193 169 0 50 0
[pid=18584] ppid=18583 vsize=980 CPUtime=0.18
/proc/18584/stat : 18584 (picosat) R 18583 18560 16402 0 -1 4194304 191 0 0 0 16 2 0 0 20 0 1 0 22983898 1003520 175 996147200 134512640 134931368 4294956256 18446744073709551615 134523087 0 0 4096 0 0 0 0 17 1 0 0
/proc/18584/statm: 245 175 48 102 0 140 0
Current children cumulated CPU time (s) 1.02
Current children cumulated vsize (KiB) 23204

[startup+1.3015 s]
/proc/loadavg: 1.15 1.39 1.74 3/88 18584
/proc/meminfo: memFree=1731720/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=16868 CPUtime=0.84
/proc/18560/stat : 18560 (sugar) S 18558 18560 16402 0 -1 4194304 1364 11351 0 2 5 1 71 7 16 0 1 0 22983806 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 224273674338 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/18560/statm: 4217 1112 409 3 0 796 0
[pid=18583] ppid=18560 vsize=5356 CPUtime=0
/proc/18583/stat : 18583 (sh) S 18560 18560 16402 0 -1 4194304 277 0 0 0 0 0 0 0 18 0 1 0 22983898 5484544 232 996147200 4194304 4889804 548682068832 18446744073709551615 224264774468 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/18583/statm: 1339 232 193 169 0 50 0
[pid=18584] ppid=18583 vsize=980 CPUtime=0.37
/proc/18584/stat : 18584 (picosat) R 18583 18560 16402 0 -1 4194304 191 0 0 0 35 2 0 0 22 0 1 0 22983898 1003520 175 996147200 134512640 134931368 4294956256 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/18584/statm: 245 175 48 102 0 140 0
Current children cumulated CPU time (s) 1.21
Current children cumulated vsize (KiB) 23204

[startup+1.40152 s]
/proc/loadavg: 1.15 1.39 1.74 3/88 18584
/proc/meminfo: memFree=1731720/2055920 swapFree=4192812/4192956
[pid=18560] ppid=18558 vsize=16868 CPUtime=1.24
/proc/18560/stat : 18560 (sugar) S 18558 18560 16402 0 -1 4194304 1443 11831 0 2 5 1 109 9 15 0 1 0 22983806 17272832 1112 996147200 4194304 4206940 548682068608 18446744073709551615 224273674338 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/18560/statm: 4217 1112 409 3 0 796 0
Current children cumulated CPU time (s) 1.24
Current children cumulated vsize (KiB) 16868

Child status: 0
Real time (s): 1.48395
CPU time (s): 1.37579
CPU user time (s): 1.24081
CPU system time (s): 0.134979
CPU usage (%): 92.7113
Max. virtual memory (cumulated for all children) (KiB): 23204

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.24081
system time used= 0.134979
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17044
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= 1174
involuntary context switches= 1038

runsolver used 0.006998 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node82 at 2009-07-12 02:39:48
IDJOB=2074392
IDBENCH=56094
IDSOLVER=738
FILE ID=node82/2074392-1247359188
PBS_JOBID= 9506947
Free space on /tmp= 66140 MiB

SOLVER NAME= Sugar v1.14.6+picosat
BENCH NAME= CPAI08/csp/chessboardColoration/normalized-cc-6-6-2.xml
COMMAND LINE= DIR/sugar -c -vv -memlimit=MEMLIMIT -jar="DIR/sugar-v1-14-6.jar" -solver="DIR/picosat" -tmp="TMPDIR/temp" BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2074392-1247359188/watcher-2074392-1247359188 -o /tmp/evaluation-result-2074392-1247359188/solver-2074392-1247359188 -C 1800 -W 2000 -M 900  HOME/sugar -c -vv -memlimit=900 -jar="HOME/sugar-v1-14-6.jar" -solver="HOME/picosat" -tmp="HOME/temp" HOME/instance-2074392-1247359188.xml

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

MD5SUM BENCH= 6d331089ced3fa3643a4429b2fd23353
RANDOM SEED=52960273

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		: 3000.265
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		: 3000.265
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:       1736008 kB
Buffers:         22076 kB
Cached:          91892 kB
SwapCached:          0 kB
Active:         233500 kB
Inactive:        34584 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1736008 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1524 kB
Writeback:           0 kB
Mapped:         167708 kB
Slab:            36856 kB
Committed_AS:   860988 kB
PageTables:       2040 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= 66140 MiB
End job on node82 at 2009-07-12 02:39:50