Trace number 236156

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 2006-12-04? (MO) 1.66775 1.69089

General information on the benchmark

Namefisher/
FISCHER8-12-fair.xml
MD5SUMf95e87c54758f759695a9b62cac0abd9
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 benchmark1569.6
SatisfiableNO
(Un)Satisfiability was proved
Number of variables24963
Number of constraints23630
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension23630
Global constraints used (with number of constraints)

Solver Data (download as text)

0.10	c 
0.10	c Parsing xml file
0.10	c 	domains...............    0
0.10	c 	variables.....

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/node14/watcher-236156-1168341811 -o ROOT/results/node14/solver-236156-1168341811 -C 1800 -M 900 /tmp/evaluation/236156-1168341811/mistral/bin/solver /tmp/evaluation/236156-1168341811/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: 1.86 1.97 1.99 2/87 2905
/proc/meminfo: memFree=1430160/2055920 swapFree=4163780/4192956
[pid=2904] ppid=2902 vsize=540 CPUtime=0
/proc/2904/stat : 2904 (solver) R 2902 2904 1510 0 -1 4194304 41 0 0 0 0 0 0 0 20 0 1 0 182576102 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 6927140 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/2904/statm: 135 26 21 92 0 18 0

[startup+0.102638 s]
/proc/loadavg: 1.86 1.97 1.99 2/87 2905
/proc/meminfo: memFree=1430160/2055920 swapFree=4163780/4192956
[pid=2904] ppid=2902 vsize=61260 CPUtime=0.09
/proc/2904/stat : 2904 (solver) R 2902 2904 1510 0 -1 4194304 14339 0 0 0 3 6 0 0 20 0 1 0 182576102 62730240 14307 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 1 0 0
/proc/2904/statm: 15315 14307 692 92 0 13659 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 61260

[startup+0.51068 s]
/proc/loadavg: 1.86 1.97 1.99 2/87 2905
/proc/meminfo: memFree=1430160/2055920 swapFree=4163780/4192956
[pid=2904] ppid=2902 vsize=322924 CPUtime=0.49
/proc/2904/stat : 2904 (solver) R 2902 2904 1510 0 -1 4194304 79730 0 0 0 15 34 0 0 25 0 1 0 182576102 330674176 79698 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 1 0 0
/proc/2904/statm: 80731 79698 692 92 0 79075 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 322924

[startup+1.33175 s]
/proc/loadavg: 1.86 1.97 1.99 3/87 2905
/proc/meminfo: memFree=724240/2055920 swapFree=4163780/4192956
[pid=2904] ppid=2902 vsize=841816 CPUtime=1.3
/proc/2904/stat : 2904 (solver) R 2902 2904 1510 0 -1 4194304 209489 0 0 0 40 90 0 0 25 0 1 0 182576102 862019584 209457 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4158332385 0 0 4096 0 0 0 0 17 1 0 0
/proc/2904/statm: 210454 209457 692 92 0 208798 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 841816



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+1.53577 s]
/proc/loadavg: 1.86 1.97 1.99 3/87 2905
/proc/meminfo: memFree=462736/2055920 swapFree=4163780/4192956
[pid=2904] ppid=2902 vsize=972332 CPUtime=1.51
/proc/2904/stat : 2904 (solver) R 2902 2904 1510 0 -1 4194304 242096 0 0 0 47 104 0 0 25 0 1 0 182576102 995667968 242064 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 1 0 0
/proc/2904/statm: 243083 242064 692 92 0 241427 0
Current children cumulated CPU time (s) 1.51
Current children cumulated vsize (KiB) 972332

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 1.69089
CPU time (s): 1.66775
CPU user time (s): 0.470928
CPU system time (s): 1.19682
CPU usage (%): 98.6313
Max. virtual memory (cumulated for all children) (KiB): 972332

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.470928
system time used= 1.19682
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 242096
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= 13
involuntary context switches= 71

runsolver used 0.006998 s user time and 0.011998 s system time

The end

Launcher Data (download as text)

Begin job on node14 on Tue Jan  9 11:23:32 UTC 2007


IDJOB= 236156
IDBENCH= 6825
FILE ID= node14/236156-1168341811

PBS_JOBID= 3503161

Free space on /tmp= 66552 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fisher/FISCHER8-12-fair.xml
COMMAND LINE= /tmp/evaluation/236156-1168341811/mistral/bin/solver /tmp/evaluation/236156-1168341811/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node14/watcher-236156-1168341811 -o ROOT/results/node14/solver-236156-1168341811 -C 1800 -M 900  /tmp/evaluation/236156-1168341811/mistral/bin/solver /tmp/evaluation/236156-1168341811/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  f95e87c54758f759695a9b62cac0abd9

RANDOM SEED= 247390010

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		: 3000.227
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		: 3000.227
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:       1430576 kB
Buffers:         73516 kB
Cached:         418732 kB
SwapCached:       4084 kB
Active:         278608 kB
Inactive:       274892 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1430576 kB
SwapTotal:     4192956 kB
SwapFree:      4163780 kB
Dirty:            7260 kB
Writeback:           0 kB
Mapped:          71028 kB
Slab:            56576 kB
Committed_AS:  6247820 kB
PageTables:       2200 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= 66552 MiB



End job on node14 on Tue Jan  9 11:23:33 UTC 2007