Trace number 237432

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
sugar 0.40? 1.28 1.42621

General information on the benchmark

Namehaystacks/
haystacks_23.xml
MD5SUMa8b878f0696c83c0267b81bf01728e7a
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 benchmark10.4514
SatisfiableNO
(Un)Satisfiability was proved
Number of variables529
Number of constraints5841
Maximum constraint arity2
Maximum domain size23
Number of constraints which are defined in extension0
Number of constraints which are defined in intension5841
Global constraints used (with number of constraints)

Solver Data (download as text)

0.05	c # Sugar v0-40 (/tmp/evaluation/237432-1170108546/sugar-v0-40.jar)
0.05	
0.05	c # MAIN  BEGIN : /tmp/evaluation/237432-1170108546/unknown.xml [Mon Jan 29 23:09:07 2007]
0.05	c # CONVERT_XML  BEGIN : /tmp/evaluation/237432-1170108546/unknown.xml /tmp/evaluation/237432-1170108546/sugar1046.csp [Mon Jan 29 23:09:07 2007]
0.05	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/237432-1170108546/sugar-v0-40.jar -convert /tmp/evaluation/237432-1170108546/unknown.xml /tmp/evaluation/237432-1170108546/sugar1046.csp
0.18	c BEGIN convert /tmp/evaluation/237432-1170108546/unknown.xml
0.91	c END convert (0.733196 seconds)
0.92	c # CONVERT_XML  END : /tmp/evaluation/237432-1170108546/sugar1046.csp 173083 bytes (1 seconds) [Mon Jan 29 23:09:08 2007]
0.92	c # CONVERT_XML  CPU : 0 = 0 + 0 + 0 + 0
0.92	
0.92	c # GENERATE_SAT  BEGIN : /tmp/evaluation/237432-1170108546/sugar1046.bcnf [Mon Jan 29 23:09:08 2007]
0.92	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/237432-1170108546/sugar-v0-40.jar -bcnf -map /tmp/evaluation/237432-1170108546/sugar1046.map /tmp/evaluation/237432-1170108546/sugar1046.csp /tmp/evaluation/237432-1170108546/sugar1046.bcnf
1.04	c BEGIN parse /tmp/evaluation/237432-1170108546/sugar1046.csp
1.36	c jp.ac.kobe_u.cs.sugar.SugarException: mul(sub(V508, V279), sub(V279, V508)) is not coef linear expression
1.36	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.toLinearExpression(LinearExpression.java:97)
1.36	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.toLinearExpression(LinearExpression.java:77)
1.36	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.toLinearExpression(LinearExpression.java:80)
1.36	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.(LinearExpression.java:56)
1.36	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parseLE(CSPParser.java:312)
1.36	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parseComparison(CSPParser.java:386)
1.36	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:469)
1.36	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:541)
1.36	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:568)
1.36	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:586)
1.36	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:600)
1.36	c 	at jp.ac.kobe_u.cs.sugar.Sugar.encode(Sugar.java:187)
1.36	c 	at jp.ac.kobe_u.cs.sugar.Sugar.execute(Sugar.java:435)
1.36	c 	at jp.ac.kobe_u.cs.sugar.Sugar.main(Sugar.java:451)
1.42	s UNKNOWN
1.42	c # ERROR /tmp/evaluation/237432-1170108546/sugar1046.bcnf is not generated, at /tmp/evaluation/237432-1170108546/sugar line 310.
1.42	
1.42	c # MAIN  END :  (1 seconds) [Mon Jan 29 23:09:08 2007]
1.42	c # MAIN  CPU : 0.42 = 0 + 0 + 0.37 + 0.05
1.42

Verifier Data (download as text)

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

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node10/watcher-237432-1170108546 -o ROOT/results/node10/solver-237432-1170108546 -C 1800 -M 900 /tmp/evaluation/237432-1170108546/solver /tmp/evaluation/237432-1170108546 /tmp/evaluation/237432-1170108546/unknown.xml 

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: 1.92 1.99 2.09 5/87 1047
/proc/meminfo: memFree=1400784/2055920 swapFree=4192812/4192956
[pid=1046] ppid=1044 vsize=18540 CPUtime=0
/proc/1046/stat : 1046 (runsolver) R 1044 1046 507 0 -1 4194368 16 0 0 0 0 0 0 0 21 0 1 0 30809690 18984960 279 18446744073709551615 4194304 4267372 548682069040 18446744073709551615 214919867687 0 0 4096 24578 0 0 0 17 1 0 0
/proc/1046/statm: 4635 279 244 17 0 2626 0

[startup+0.110337 s]
/proc/loadavg: 1.92 1.99 2.09 5/87 1047
/proc/meminfo: memFree=1400784/2055920 swapFree=4192812/4192956
[pid=1046] ppid=1044 vsize=13724 CPUtime=0.04
/proc/1046/stat : 1046 (sugar) S 1044 1046 507 0 -1 4194304 1112 0 0 0 3 1 0 0 18 0 1 0 30809690 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 214928765026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/1046/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+0.518388 s]
/proc/loadavg: 1.92 1.99 2.09 5/87 1047
/proc/meminfo: memFree=1400784/2055920 swapFree=4192812/4192956
[pid=1046] ppid=1044 vsize=13724 CPUtime=0.04
/proc/1046/stat : 1046 (sugar) S 1044 1046 507 0 -1 4194304 1121 0 0 0 3 1 0 0 16 0 1 0 30809690 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 214928765026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/1046/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 13724

[startup+1.34151 s]
/proc/loadavg: 1.92 1.99 2.09 3/96 1063
/proc/meminfo: memFree=1392840/2055920 swapFree=4192812/4192956
[pid=1046] ppid=1044 vsize=13724 CPUtime=0.04
/proc/1046/stat : 1046 (sugar) S 1044 1046 507 0 -1 4194304 1188 0 0 0 3 1 0 0 16 0 1 0 30809690 14053376 808 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 214928765026 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/1046/statm: 3431 808 370 3 0 531 0
[pid=1048] ppid=1046 vsize=0 CPUtime=0.84
/proc/1048/stat : 1048 (java) Z 1046 1046 507 0 -1 1036 8917 0 1 0 78 6 0 0 16 0 1 0 30809695 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/1048/statm: 0 0 0 0 0 0 0
[pid=1056] ppid=1046 vsize=807064 CPUtime=0.4
/proc/1056/stat : 1056 (java) R 1046 1046 507 0 -1 0 6559 0 1 0 35 5 0 0 21 0 8 0 30809783 826433536 6309 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4073479415 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/1056/statm: 201766 6309 1494 14 0 189044 0
[pid=1056/tid=1057] ppid=1046 vsize=807064 CPUtime=0.02
/proc/1056/task/1057/stat : 1057 (java) S 1046 1046 507 0 -1 64 506 0 0 0 2 0 0 0 16 0 8 0 30809786 826433536 6309 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 1 0 0
[pid=1056/tid=1058] ppid=1046 vsize=807064 CPUtime=0
/proc/1056/task/1058/stat : 1058 (java) S 1046 1046 507 0 -1 64 11 0 0 0 0 0 0 0 16 0 8 0 30809786 826433536 6309 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=1056/tid=1059] ppid=1046 vsize=807064 CPUtime=0
/proc/1056/task/1059/stat : 1059 (java) S 1046 1046 507 0 -1 64 5 0 0 0 0 0 0 0 15 0 8 0 30809786 826433536 6309 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=1056/tid=1060] ppid=1046 vsize=807064 CPUtime=0
/proc/1056/task/1060/stat : 1060 (java) S 1046 1046 507 0 -1 64 1 0 0 0 0 0 0 0 18 0 8 0 30809790 826433536 6309 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=1056/tid=1061] ppid=1046 vsize=807064 CPUtime=0.05
/proc/1056/task/1061/stat : 1061 (java) S 1046 1046 507 0 -1 64 292 0 0 0 5 0 0 0 16 0 8 0 30809790 826433536 6309 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=1056/tid=1062] ppid=1046 vsize=807064 CPUtime=0
/proc/1056/task/1062/stat : 1062 (java) S 1046 1046 507 0 -1 64 3 0 0 0 0 0 0 0 19 0 8 0 30809790 826433536 6309 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
[pid=1056/tid=1063] ppid=1046 vsize=807064 CPUtime=0
/proc/1056/task/1063/stat : 1063 (java) S 1046 1046 507 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 30809790 826433536 6309 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.28
Current children cumulated vsize (KiB) 820788

Child status: 1

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 1046 and gives childrusage.ru_utime.tv_sec=0 childrusage.ru_utime.tv_usec=413937 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=70989
CPU time returned by wait4() is 0.484926
while last known CPU time is 1.28

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

Real time (s): 1.42621
CPU time (s): 1.28
CPU user time (s): 1.16
CPU system time (s): 0.12
CPU usage (%): 89.748
Max. virtual memory (cumulated for all children) (KiB): 820788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.413937
system time used= 0.070989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 7863
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 325
involuntary context switches= 277

runsolver used 0.001999 s user time and 0.012998 s system time

The end

Launcher Data (download as text)

Begin job on node10 on Mon Jan 29 22:09:06 UTC 2007


IDJOB= 237432
IDBENCH= 6940
IDSOLVER= 86
FILE ID= node10/237432-1170108546

PBS_JOBID= 3689891

Free space on /tmp= 66446 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_23.xml
COMMAND LINE= /tmp/evaluation/237432-1170108546/solver /tmp/evaluation/237432-1170108546 /tmp/evaluation/237432-1170108546/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node10/watcher-237432-1170108546 -o ROOT/results/node10/solver-237432-1170108546 -C 1800 -M 900  /tmp/evaluation/237432-1170108546/solver /tmp/evaluation/237432-1170108546 /tmp/evaluation/237432-1170108546/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  a8b878f0696c83c0267b81bf01728e7a

RANDOM SEED= 822263100

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		: 3000.232
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		: 3000.232
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:       1401264 kB
Buffers:         41764 kB
Cached:         182092 kB
SwapCached:          0 kB
Active:         536008 kB
Inactive:        60928 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1401264 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1456 kB
Writeback:           0 kB
Mapped:         392820 kB
Slab:            41976 kB
Committed_AS:  1139192 kB
PageTables:       2836 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= 66446 MiB



End job on node10 on Mon Jan 29 22:09:09 UTC 2007