Trace number 238136

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? 3.33 3.48622

General information on the benchmark

Namehaystacks/
haystacks_40.xml
MD5SUM8b5182a49a250a29e8348f72e42d7007
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 benchmark641.278
SatisfiableNO
(Un)Satisfiability was proved
Number of variables1600
Number of constraints31239
Maximum constraint arity2
Maximum domain size40
Number of constraints which are defined in extension0
Number of constraints which are defined in intension31239
Global constraints used (with number of constraints)

Solver Data (download as text)

0.04	c # Sugar v0-40 (/tmp/evaluation/238136-1170108600/sugar-v0-40.jar)
0.04	
0.04	c # MAIN  BEGIN : /tmp/evaluation/238136-1170108600/unknown.xml [Mon Jan 29 23:10:03 2007]
0.04	c # CONVERT_XML  BEGIN : /tmp/evaluation/238136-1170108600/unknown.xml /tmp/evaluation/238136-1170108600/sugar25550.csp [Mon Jan 29 23:10:03 2007]
0.04	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/238136-1170108600/sugar-v0-40.jar -convert /tmp/evaluation/238136-1170108600/unknown.xml /tmp/evaluation/238136-1170108600/sugar25550.csp
0.16	c BEGIN convert /tmp/evaluation/238136-1170108600/unknown.xml
2.23	c END convert (2.068904 seconds)
2.26	c # CONVERT_XML  END : /tmp/evaluation/238136-1170108600/sugar25550.csp 942553 bytes (2 seconds) [Mon Jan 29 23:10:05 2007]
2.26	c # CONVERT_XML  CPU : 0.01 = 0 + 0.01 + 0 + 0
2.26	
2.26	c # GENERATE_SAT  BEGIN : /tmp/evaluation/238136-1170108600/sugar25550.bcnf [Mon Jan 29 23:10:05 2007]
2.26	c # CMD : java -Xms200M -Xmx600M -jar /tmp/evaluation/238136-1170108600/sugar-v0-40.jar -bcnf -map /tmp/evaluation/238136-1170108600/sugar25550.map /tmp/evaluation/238136-1170108600/sugar25550.csp /tmp/evaluation/238136-1170108600/sugar25550.bcnf
2.37	c BEGIN parse /tmp/evaluation/238136-1170108600/sugar25550.csp
3.46	c jp.ac.kobe_u.cs.sugar.SugarException: mul(sub(V266, V1424), sub(V1424, V266)) is not coef linear expression
3.46	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.toLinearExpression(LinearExpression.java:97)
3.46	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.toLinearExpression(LinearExpression.java:77)
3.46	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.toLinearExpression(LinearExpression.java:80)
3.46	c 	at jp.ac.kobe_u.cs.sugar.LinearExpression.(LinearExpression.java:56)
3.46	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parseLE(CSPParser.java:312)
3.46	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parseComparison(CSPParser.java:386)
3.46	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:469)
3.46	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:541)
3.46	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:568)
3.46	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:586)
3.46	c 	at jp.ac.kobe_u.cs.sugar.CSPParser.parse(CSPParser.java:600)
3.46	c 	at jp.ac.kobe_u.cs.sugar.Sugar.encode(Sugar.java:187)
3.46	c 	at jp.ac.kobe_u.cs.sugar.Sugar.execute(Sugar.java:435)
3.46	c 	at jp.ac.kobe_u.cs.sugar.Sugar.main(Sugar.java:451)
3.48	s UNKNOWN
3.48	c # ERROR /tmp/evaluation/238136-1170108600/sugar25550.bcnf is not generated, at /tmp/evaluation/238136-1170108600/sugar line 310.
3.48	
3.48	c # MAIN  END :  (4 seconds) [Mon Jan 29 23:10:07 2007]
3.48	c # MAIN  CPU : 1.22 = 0 + 0.01 + 1.16 + 0.05
3.48

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/node21/watcher-238136-1170108600 -o ROOT/results/node21/solver-238136-1170108600 -C 1800 -M 900 /tmp/evaluation/238136-1170108600/solver /tmp/evaluation/238136-1170108600 /tmp/evaluation/238136-1170108600/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: 3.58 3.82 3.03 5/82 25551
/proc/meminfo: memFree=1886704/2055920 swapFree=4192812/4192956
[pid=25550] ppid=25548 vsize=12272 CPUtime=0
/proc/25550/stat : 25550 (sugar) R 25548 25550 25280 0 -1 4194304 652 0 0 0 0 0 0 0 20 0 1 0 30814237 12566528 371 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 221249871278 0 0 4224 0 0 0 0 17 1 0 0
/proc/25550/statm: 3068 372 275 3 0 168 0

[startup+0.108538 s]
/proc/loadavg: 3.58 3.82 3.03 5/82 25551
/proc/meminfo: memFree=1886704/2055920 swapFree=4192812/4192956
[pid=25550] ppid=25548 vsize=13724 CPUtime=0.03
/proc/25550/stat : 25550 (sugar) S 25548 25550 25280 0 -1 4194304 1112 0 0 0 3 0 0 0 16 0 1 0 30814237 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 221245386850 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25550/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+0.516591 s]
/proc/loadavg: 3.58 3.82 3.03 5/82 25551
/proc/meminfo: memFree=1886704/2055920 swapFree=4192812/4192956
[pid=25550] ppid=25548 vsize=13724 CPUtime=0.03
/proc/25550/stat : 25550 (sugar) S 25548 25550 25280 0 -1 4194304 1121 0 0 0 3 0 0 0 16 0 1 0 30814237 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 221245386850 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25550/statm: 3431 805 368 3 0 531 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 13724

[startup+1.33768 s]
/proc/loadavg: 3.37 3.77 3.02 2/89 25559
/proc/meminfo: memFree=1833464/2055920 swapFree=4192812/4192956
[pid=25550] ppid=25548 vsize=13724 CPUtime=0.03
/proc/25550/stat : 25550 (sugar) S 25548 25550 25280 0 -1 4194304 1121 0 0 0 3 0 0 0 16 0 1 0 30814237 14053376 805 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 221245386850 0 0 4224 16386 18446744071563648864 0 0 17 1 0 0
/proc/25550/statm: 3431 805 368 3 0 531 0
[pid=25552] ppid=25550 vsize=807288 CPUtime=1.27
/proc/25552/stat : 25552 (java) R 25550 25550 25280 0 -1 0 18100 0 1 0 119 8 0 0 17 0 8 0 30814242 826662912 17845 18446744073709551615 134512640 134570532 4294956528 18446744073709551615 4073687761 0 4 0 23759 18446744073709551615 0 0 17 1 0 0
/proc/25552/statm: 201822 17845 1690 14 0 189100 0
[pid=25552/tid=25553] ppid=25550 vsize=807288 CPUtime=0.26
/proc/25552/task/25553/stat : 25553 (java) S 25550 25550 25280 0 -1 64 11541 0 0 0 23 3 0 0 16 0 8 0 30814245 826662912 17845 18446744073709551615 134512640 134570532 4294956528 18446744073709551615 4294960144 0 0 0 23759 0 0 0 -1 0 0 0
[pid=25552/tid=25554] ppid=25550 vsize=807288 CPUtime=0
/proc/25552/task/25554/stat : 25554 (java) S 25550 25550 25280 0 -1 64 9 0 0 0 0 0 0 0 20 0 8 0 30814246 826662912 17845 18446744073709551615 134512640 134570532 4294956528 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=25552/tid=25555] ppid=25550 vsize=807288 CPUtime=0
/proc/25552/task/25555/stat : 25555 (java) S 25550 25550 25280 0 -1 64 4 0 0 0 0 0 0 0 21 0 8 0 30814246 826662912 17845 18446744073709551615 134512640 134570532 4294956528 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=25552/tid=25556] ppid=25550 vsize=807288 CPUtime=0
/proc/25552/task/25556/stat : 25556 (java) S 25550 25550 25280 0 -1 64 1 0 0 0 0 0 0 0 22 0 8 0 30814249 826662912 17845 18446744073709551615 134512640 134570532 4294956528 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=25552/tid=25557] ppid=25550 vsize=807288 CPUtime=0.12
/proc/25552/task/25557/stat : 25557 (java) S 25550 25550 25280 0 -1 64 394 0 0 0 12 0 0 0 16 0 8 0 30814249 826662912 17845 18446744073709551615 134512640 134570532 4294956528 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=25552/tid=25558] ppid=25550 vsize=807288 CPUtime=0
/proc/25552/task/25558/stat : 25558 (java) S 25550 25550 25280 0 -1 64 3 0 0 0 0 0 0 0 23 0 8 0 30814249 826662912 17845 18446744073709551615 134512640 134570532 4294956528 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 0 0 0
[pid=25552/tid=25559] ppid=25550 vsize=807288 CPUtime=0
/proc/25552/task/25559/stat : 25559 (java) S 25550 25550 25280 0 -1 64 1 0 0 0 0 0 0 0 15 0 8 0 30814249 826662912 17845 18446744073709551615 134512640 134570532 4294956528 18446744073709551615 4294960144 0 4 0 23759 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 821012

[startup+2.97986 s]
/proc/loadavg: 3.37 3.77 3.02 2/83 25559
/proc/meminfo: memFree=1878840/2055920 swapFree=4192812/4192956
[pid=25550] ppid=25548 vsize=13724 CPUtime=0.04
/proc/25550/stat : 25550 (sugar) S 25548 25550 25280 0 -1 4194304 1190 0 0 0 3 1 0 0 15 0 1 0 30814237 14053376 809 18446744073709551615 4194304 4206940 548682069232 18446744073709551615 221245386850 0 0 4224 16386 18446744071563648864 0 0 17 0 0 0
/proc/25550/statm: 3431 809 371 3 0 531 0
[pid=25552] ppid=25550 vsize=0 CPUtime=2.16
/proc/25552/stat : 25552 (java) Z 25550 25550 25280 0 -1 1036 19943 0 1 0 206 10 0 0 16 0 1 0 30814242 0 0 18446744073709551615 0 0 0 0 0 0 4 0 23759 18446744071563351923 0 0 17 1 0 0
/proc/25552/statm: 0 0 0 0 0 0 0
[pid=25560] ppid=25550 vsize=807064 CPUtime=0.71
/proc/25560/stat : 25560 (java) R 25550 25550 25280 0 -1 0 8328 0 1 0 68 3 0 0 17 0 8 0 30814463 826433536 8075 18446744073709551615 134512640 134570532 4294956480 18446744073709551615 4073481404 0 4 0 23759 18446744073709551615 0 0 17 0 0 0
/proc/25560/statm: 201766 8075 1494 14 0 189044 0
Current children cumulated CPU time (s) 2.91
Current children cumulated vsize (KiB) 820788

Child status: 1

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 25550 and gives childrusage.ru_utime.tv_sec=1 childrusage.ru_utime.tv_usec=201817 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=65989
CPU time returned by wait4() is 1.26781
while last known CPU time is 3.33

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

Real time (s): 3.48622
CPU time (s): 3.33
CPU user time (s): 3.18
CPU system time (s): 0.15
CPU usage (%): 95.5189
Max. virtual memory (cumulated for all children) (KiB): 821136

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.20182
system time used= 0.065989
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 11517
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= 372
involuntary context switches= 127

runsolver used 0.008998 s user time and 0.015997 s system time

The end

Launcher Data (download as text)

Begin job on node21 on Mon Jan 29 22:10:01 UTC 2007


IDJOB= 238136
IDBENCH= 6984
IDSOLVER= 86
FILE ID= node21/238136-1170108600

PBS_JOBID= 3689950

Free space on /tmp= 66560 MiB

SOLVER NAME= sugar 0.40
BENCH NAME= HOME/pub/bench/CPAI06/haystacks/haystacks_40.xml
COMMAND LINE= /tmp/evaluation/238136-1170108600/solver /tmp/evaluation/238136-1170108600 /tmp/evaluation/238136-1170108600/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-238136-1170108600 -o ROOT/results/node21/solver-238136-1170108600 -C 1800 -M 900  /tmp/evaluation/238136-1170108600/solver /tmp/evaluation/238136-1170108600 /tmp/evaluation/238136-1170108600/unknown.xml

META MD5SUM SOLVER= 0a27e717dfe98d83d9802fe0eea45073
MD5SUM BENCH=  8b5182a49a250a29e8348f72e42d7007

RANDOM SEED= 463873460

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		: 3000.245
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		: 3000.245
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:       1887896 kB
Buffers:         10532 kB
Cached:          51688 kB
SwapCached:          0 kB
Active:          98564 kB
Inactive:        23632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1887896 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5152 kB
Writeback:           0 kB
Mapped:          78356 kB
Slab:            31184 kB
Committed_AS:   517064 kB
PageTables:       1852 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= 66560 MiB



End job on node21 on Mon Jan 29 22:10:09 UTC 2007