Trace number 237001

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
Mistral 2006-12-04Signal 5.56515 19.9025

General information on the benchmark

Namefisher/
FISCHER6-4-fair.xml
MD5SUM5c29ca3293692d8d9468bb75ba681658
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables6523
Number of constraints6162
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension6162
Global constraints used (with number of constraints)

Solver Data (download as text)

0.23	c 
0.23	c Parsing xml file
0.23	c 	domains...............    0
0.23	c 	variables............. 1.45
1.47	c 	predicates...test
1.47	..test
1.47	test
1.47	.test
1.47	test
1.47	.test
1.47	test
1.47	...test
1.47	test
1.47	..    0
1.47	c 	constraints.

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/node61/watcher-237001-1168718015 -o ROOT/results/node61/solver-237001-1168718015 -C 1800 -M 900 /tmp/evaluation/237001-1168718015/mistral/bin/solver /tmp/evaluation/237001-1168718015/unknown.xml -v 1 

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: 3.37 2.04 1.91 5/81 15172
/proc/meminfo: memFree=1309776/2055920 swapFree=4191892/4192956
[pid=15171] ppid=15169 vsize=18540 CPUtime=0
/proc/15171/stat : 15171 (runsolver) R 15169 15171 14387 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 220199439 18984960 279 18446744073709551615 4194304 4267372 548682069056 18446744073709551615 246406507815 0 0 4096 24578 0 0 0 17 1 0 0
/proc/15171/statm: 4635 279 244 17 0 2626 0

[startup+0.108116 s]
/proc/loadavg: 3.37 2.04 1.91 5/81 15172
/proc/meminfo: memFree=1309776/2055920 swapFree=4191892/4192956
[pid=15171] ppid=15169 vsize=63980 CPUtime=0.09
/proc/15171/stat : 15171 (solver) R 15169 15171 14387 0 -1 4194304 15053 0 0 0 3 6 0 0 18 0 1 0 220199439 65515520 15021 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 1 0 0
/proc/15171/statm: 15995 15021 692 92 0 14339 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 63980

[startup+0.516185 s]
/proc/loadavg: 3.37 2.04 1.91 5/81 15172
/proc/meminfo: memFree=1309776/2055920 swapFree=4191892/4192956
[pid=15171] ppid=15169 vsize=318336 CPUtime=0.5
/proc/15171/stat : 15171 (solver) R 15169 15171 14387 0 -1 4194304 78649 0 0 0 17 33 0 0 21 0 1 0 220199439 325976064 78617 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 1 0 0
/proc/15171/statm: 79584 78617 692 92 0 77928 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 318336

[startup+1.33732 s]
/proc/loadavg: 3.37 2.04 1.91 3/81 15172
/proc/meminfo: memFree=584080/2055920 swapFree=4191892/4192956
[pid=15171] ppid=15169 vsize=824504 CPUtime=1.32
/proc/15171/stat : 15171 (solver) R 15169 15171 14387 0 -1 4194304 205195 0 0 0 42 90 0 0 25 0 1 0 220199439 844292096 205163 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804815 0 0 4096 0 0 0 0 17 1 0 0
/proc/15171/statm: 206126 205163 692 92 0 204470 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 824504

[startup+2.97662 s]
/proc/loadavg: 3.37 2.04 1.91 3/81 15172
/proc/meminfo: memFree=162512/2055920 swapFree=4191892/4192956
[pid=15171] ppid=15169 vsize=895532 CPUtime=2.78
/proc/15171/stat : 15171 (solver) R 15169 15171 14387 0 -1 4195840 222959 0 0 0 47 231 0 0 25 0 1 0 220199439 917024768 222926 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134559939 0 0 4096 0 0 0 0 17 1 0 0
/proc/15171/statm: 223883 222926 712 92 0 222227 0
Current children cumulated CPU time (s) 2.78
Current children cumulated vsize (KiB) 895532

[startup+6.25718 s]
/proc/loadavg: 3.50 2.09 1.93 1/81 15172
/proc/meminfo: memFree=15632/2055920 swapFree=4191892/4192956
[pid=15171] ppid=15169 vsize=895532 CPUtime=3.06
/proc/15171/stat : 15171 (solver) D 15169 15171 14387 0 -1 4195840 222959 0 0 0 47 259 0 0 25 0 1 0 220199439 917024768 222926 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134559939 0 0 4096 0 18446744071563608069 0 0 17 0 0 0
/proc/15171/statm: 223883 222926 712 92 0 222227 0
Current children cumulated CPU time (s) 3.06
Current children cumulated vsize (KiB) 895532

[startup+12.7181 s]
/proc/loadavg: 3.62 2.13 1.94 3/83 15174
/proc/meminfo: memFree=15616/2055920 swapFree=4191892/4192956
[pid=15171] ppid=15169 vsize=895532 CPUtime=3.85
/proc/15171/stat : 15171 (solver) R 15169 15171 14387 0 -1 4195840 222959 0 0 0 47 338 0 0 25 0 1 0 220199439 917024768 222926 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134559939 0 0 4096 0 0 0 0 17 1 0 0
/proc/15171/statm: 223883 222926 712 92 0 222227 0
Current children cumulated CPU time (s) 3.85
Current children cumulated vsize (KiB) 895532

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 19.9025
CPU time (s): 5.56515
CPU user time (s): 0.473927
CPU system time (s): 5.09123
CPU usage (%): 27.9621
Max. virtual memory (cumulated for all children) (KiB): 895532

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.473927
system time used= 5.09123
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 223023
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 65
involuntary context switches= 638

runsolver used 0.023996 s user time and 0.057991 s system time

The end

Launcher Data (download as text)

Begin job on node61 on Sat Jan 13 19:53:36 UTC 2007


IDJOB= 237001
IDBENCH= 6890
IDSOLVER= 84
FILE ID= node61/237001-1168718015

PBS_JOBID= 3547623

Free space on /tmp= 65754 MiB

SOLVER NAME= Mistral 2006-12-04
BENCH NAME= HOME/pub/bench/CPAI06/fisher/FISCHER6-4-fair.xml
COMMAND LINE= /tmp/evaluation/237001-1168718015/mistral/bin/solver /tmp/evaluation/237001-1168718015/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-237001-1168718015 -o ROOT/results/node61/solver-237001-1168718015 -C 1800 -M 900  /tmp/evaluation/237001-1168718015/mistral/bin/solver /tmp/evaluation/237001-1168718015/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  5c29ca3293692d8d9468bb75ba681658

RANDOM SEED= 708315026

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		: 3000.259
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		: 3000.259
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:       1312496 kB
Buffers:          3956 kB
Cached:         545636 kB
SwapCached:        256 kB
Active:         162328 kB
Inactive:       521768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1312496 kB
SwapTotal:     4192956 kB
SwapFree:      4191892 kB
Dirty:           71612 kB
Writeback:           0 kB
Mapped:         150020 kB
Slab:            44536 kB
Committed_AS:  5104184 kB
PageTables:       2048 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= 64718 MiB



End job on node61 on Sat Jan 13 19:53:56 UTC 2007