Trace number 245915

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
buggy_2_5_s 2007-01-08? (MO) 6.19206 32.5542

General information on the benchmark

NamelargeQueens/
queens-1000.xml
MD5SUM24563206a3688bcf26d5cd66cbbda335
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark440.78
SatisfiableYES
(Un)Satisfiability was proved
Number of variables1000
Number of constraints499500
Maximum constraint arity2
Maximum domain size1000
Number of constraints which are defined in extension0
Number of constraints which are defined in intension499500
Global constraints used (with number of constraints)

Solver Data (download as text)



Verifier Data (download as text)




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



Watcher Data (download as text)




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

command line: runsolver --timestamp -w ROOT/results/node26/watcher-245915-1168703604 -o ROOT/results/node26/solver-245915-1168703604 -C 1800 -M 900 /tmp/evaluation/245915-1168703604/solver2 /tmp/evaluation/245915-1168703604/unknown 1800 

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: 0.47 0.83 0.85 4/78 22021
/proc/meminfo: memFree=1671112/2055920 swapFree=4191880/4192956
[pid=22020] ppid=22018 vsize=5352 CPUtime=0
/proc/22020/stat : 22020 (solver2) S 22018 22020 20974 0 -1 4194304 295 0 0 0 0 0 0 0 18 0 1 0 218756371 5480448 232 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 269028483908 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/22020/statm: 1338 232 194 169 0 49 0
[pid=22022] ppid=22020 vsize=0 CPUtime=0
/proc/22022/stat : 22022 (solver2) R 22020 22020 20974 0 -1 4194372 26 0 0 0 0 0 0 0 15 0 1 0 218756371 0 0 18446744073709551615 0 0 0 0 0 0 2147483391 4096 65538 0 0 0 17 1 0 0
/proc/22022/statm: 0 0 0 0 0 0 0
[pid=22023] ppid=22020 vsize=0 CPUtime=0
/proc/22023/stat : 22023 (grep) D 22020 22020 20974 0 -1 4194308 164 0 0 0 0 0 0 0 20 0 1 0 218756372 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 18446744072100037788 0 0 17 1 0 0
/proc/22023/statm: 0 0 0 0 0 0 0

[startup+0.10599 s]
/proc/loadavg: 0.47 0.83 0.85 4/78 22021
/proc/meminfo: memFree=1671112/2055920 swapFree=4191880/4192956
[pid=22020] ppid=22018 vsize=5352 CPUtime=0
/proc/22020/stat : 22020 (solver2) S 22018 22020 20974 0 -1 4194304 353 334 0 0 0 0 0 0 16 0 1 0 218756371 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 269028483908 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22020/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+0.514025 s]
/proc/loadavg: 0.47 0.83 0.85 4/78 22021
/proc/meminfo: memFree=1671112/2055920 swapFree=4191880/4192956
[pid=22020] ppid=22018 vsize=5352 CPUtime=0
/proc/22020/stat : 22020 (solver2) S 22018 22020 20974 0 -1 4194304 353 334 0 0 0 0 0 0 16 0 1 0 218756371 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 269028483908 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22020/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 5352

[startup+1.3351 s]
/proc/loadavg: 0.51 0.83 0.85 2/80 22026
/proc/meminfo: memFree=1662392/2055920 swapFree=4191880/4192956
[pid=22020] ppid=22018 vsize=5352 CPUtime=0
/proc/22020/stat : 22020 (solver2) S 22018 22020 20974 0 -1 4194304 353 334 0 0 0 0 0 0 16 0 1 0 218756371 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 269028483908 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22020/statm: 1338 242 203 169 0 49 0
[pid=22025] ppid=22020 vsize=5352 CPUtime=0
/proc/22025/stat : 22025 (XML2BORD) S 22020 22020 20974 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 218756372 5480448 228 18446744073709551615 4194304 4889804 548682069440 18446744073709551615 269028483908 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/22025/statm: 1338 228 191 169 0 49 0
[pid=22026] ppid=22025 vsize=1488 CPUtime=1.31
/proc/22026/stat : 22026 (Xml2Bord) R 22025 22020 20974 0 -1 4194304 128 0 0 0 127 4 0 0 25 0 1 0 218756372 1523712 104 18446744073709551615 134512640 134544448 4294956832 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/22026/statm: 372 104 82 7 0 45 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 12192

[startup+2.97126 s]
/proc/loadavg: 0.51 0.83 0.85 2/80 22026
/proc/meminfo: memFree=1653240/2055920 swapFree=4191880/4192956
[pid=22020] ppid=22018 vsize=5352 CPUtime=0
/proc/22020/stat : 22020 (solver2) S 22018 22020 20974 0 -1 4194304 353 334 0 0 0 0 0 0 16 0 1 0 218756371 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 269028483908 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22020/statm: 1338 242 203 169 0 49 0
[pid=22025] ppid=22020 vsize=5352 CPUtime=0
/proc/22025/stat : 22025 (XML2BORD) S 22020 22020 20974 0 -1 4194304 280 0 0 0 0 0 0 0 18 0 1 0 218756372 5480448 228 18446744073709551615 4194304 4889804 548682069440 18446744073709551615 269028483908 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/22025/statm: 1338 228 191 169 0 49 0
[pid=22026] ppid=22025 vsize=1488 CPUtime=2.95
/proc/22026/stat : 22026 (Xml2Bord) R 22025 22020 20974 0 -1 4194304 128 0 0 0 287 8 0 0 25 0 1 0 218756372 1523712 104 18446744073709551615 134512640 134544448 4294956832 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/22026/statm: 372 104 82 7 0 45 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 12192

[startup+6.17356 s]
/proc/loadavg: 0.51 0.83 0.85 3/82 22032
/proc/meminfo: memFree=1562024/2055920 swapFree=4191880/4192956
[pid=22020] ppid=22018 vsize=5352 CPUtime=6.18
/proc/22020/stat : 22020 (solver2) S 22018 22020 20974 0 -1 4194304 376 8890 0 25 0 0 562 56 16 0 1 0 218756371 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 269028483908 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22020/statm: 1338 242 203 169 0 49 0
Current children cumulated CPU time (s) 6.18
Current children cumulated vsize (KiB) 5352

[startup+12.6372 s]
/proc/loadavg: 0.66 0.85 0.86 2/79 22033
/proc/meminfo: memFree=1306592/2055920 swapFree=4191880/4192956
[pid=22020] ppid=22018 vsize=5352 CPUtime=6.18
/proc/22020/stat : 22020 (solver2) S 22018 22020 20974 0 -1 4194304 376 8890 0 25 0 0 562 56 16 0 1 0 218756371 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 269028483908 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22020/statm: 1338 242 203 169 0 49 0
[pid=22033] ppid=22020 vsize=236084 CPUtime=6.34
/proc/22033/stat : 22033 (bordewijk) R 22020 22020 20974 0 -1 4194304 58513 0 4 0 584 50 0 0 25 0 1 0 218756979 241750016 58489 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 13026939 0 0 4096 0 0 0 0 17 0 0 0
/proc/22033/statm: 59021 58489 204 97 0 58302 0
Current children cumulated CPU time (s) 12.52
Current children cumulated vsize (KiB) 241436

[startup+25.4634 s]
/proc/loadavg: 0.78 0.87 0.86 2/79 22033
/proc/meminfo: memFree=778368/2055920 swapFree=4191880/4192956
[pid=22020] ppid=22018 vsize=5352 CPUtime=6.18
/proc/22020/stat : 22020 (solver2) S 22018 22020 20974 0 -1 4194304 376 8890 0 25 0 0 562 56 16 0 1 0 218756371 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 269028483908 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22020/statm: 1338 242 203 169 0 49 0
[pid=22033] ppid=22020 vsize=677888 CPUtime=19.16
/proc/22033/stat : 22033 (bordewijk) R 22020 22020 20974 0 -1 4194304 168947 0 4 0 1765 151 0 0 25 0 1 0 218756979 694157312 168923 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 13026939 0 0 4096 0 0 0 0 17 0 0 0
/proc/22033/statm: 169472 168923 204 97 0 168753 0
Current children cumulated CPU time (s) 25.34
Current children cumulated vsize (KiB) 683240



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+32.541 s]
/proc/loadavg: 0.90 0.89 0.87 2/79 22033
/proc/meminfo: memFree=457728/2055920 swapFree=4191880/4192956
[pid=22020] ppid=22018 vsize=5352 CPUtime=6.18
/proc/22020/stat : 22020 (solver2) S 22018 22020 20974 0 -1 4194304 376 8890 0 25 0 0 562 56 16 0 1 0 218756371 5480448 242 18446744073709551615 4194304 4889804 548682069280 18446744073709551615 269028483908 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/22020/statm: 1338 242 203 169 0 49 0
[pid=22033] ppid=22020 vsize=917732 CPUtime=26.23
/proc/22033/stat : 22033 (bordewijk) R 22020 22020 20974 0 -1 4194304 228934 0 4 0 2418 205 0 0 25 0 1 0 218756979 939757568 228910 18446744073709551615 134512640 134912576 4294956720 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/22033/statm: 229433 228910 204 97 0 228714 0
Current children cumulated CPU time (s) 32.41
Current children cumulated vsize (KiB) 923084

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Child ended because it received signal 15 (SIGTERM)
Real time (s): 32.5542
CPU time (s): 6.19206
CPU user time (s): 5.62115
CPU system time (s): 0.570913
CPU usage (%): 19.0208
Max. virtual memory (cumulated for all children) (KiB): 923084

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.62115
system time used= 0.570913
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9266
page faults= 25
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8631
involuntary context switches= 1615

runsolver used 0.021996 s user time and 0.106983 s system time

The end



Launcher Data (download as text)




Begin job on node26 on Sat Jan 13 15:53:41 UTC 2007


IDJOB= 245915
IDBENCH= 10312
IDSOLVER= 82
FILE ID= node26/245915-1168703604

PBS_JOBID= 3547207

Free space on /tmp= 66490 MiB

SOLVER NAME= buggy_2_5_s 2007-01-08
BENCH NAME= HOME/pub/bench/CPAI06/largeQueens/queens-1000.xml
COMMAND LINE= /tmp/evaluation/245915-1168703604/solver2 /tmp/evaluation/245915-1168703604/unknown 1800
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-245915-1168703604 -o ROOT/results/node26/solver-245915-1168703604 -C 1800 -M 900  /tmp/evaluation/245915-1168703604/solver2 /tmp/evaluation/245915-1168703604/unknown 1800

META MD5SUM SOLVER= 2182e29fee250f6e45b9a85a6429fa3a
MD5SUM BENCH=  24563206a3688bcf26d5cd66cbbda335

RANDOM SEED= 271979475

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		: 3000.236
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		: 3000.236
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:       1671272 kB
Buffers:         37956 kB
Cached:         213716 kB
SwapCached:        268 kB
Active:         167852 kB
Inactive:       142824 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1671272 kB
SwapTotal:     4192956 kB
SwapFree:      4191880 kB
Dirty:           75932 kB
Writeback:           0 kB
Mapped:          76704 kB
Slab:            59348 kB
Committed_AS:  4117904 kB
PageTables:       1912 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= 66209 MiB



End job on node26 on Sat Jan 13 15:54:17 UTC 2007