Trace number 235844

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) 1.68374 1.71222

General information on the benchmark

Namefisher/
FISCHER6-10-fair.xml
MD5SUM5fb3fb1136e985c5df629509984b9500
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 variables15619
Number of constraints14772
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension14772
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c 
0.01	c Parsing xml file
0.01	c 	domains...............    0
0.01	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/node40/watcher-235844-1168340067 -o ROOT/results/node40/solver-235844-1168340067 -C 1800 -M 900 /tmp/evaluation/235844-1168340067/mistral/bin/solver /tmp/evaluation/235844-1168340067/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: 0.92 0.98 1.07 6/84 28540
/proc/meminfo: memFree=1643904/2055920 swapFree=4192812/4192956
[pid=28539] ppid=28537 vsize=40600 CPUtime=0.06
/proc/28539/stat : 28539 (solver) R 28537 28539 28251 0 -1 4194304 9184 0 0 0 2 4 0 0 18 0 1 0 182406085 41574400 9152 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 1 0 0
/proc/28539/statm: 10150 9158 692 92 0 8494 0

[startup+0.103621 s]
/proc/loadavg: 0.92 0.98 1.07 6/84 28540
/proc/meminfo: memFree=1643904/2055920 swapFree=4192812/4192956
[pid=28539] ppid=28537 vsize=62220 CPUtime=0.09
/proc/28539/stat : 28539 (solver) R 28537 28539 28251 0 -1 4194304 14567 0 0 0 3 6 0 0 18 0 1 0 182406085 63713280 14535 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 1 0 0
/proc/28539/statm: 15555 14545 692 92 0 13899 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 62220

[startup+0.511677 s]
/proc/loadavg: 0.92 0.98 1.07 6/84 28540
/proc/meminfo: memFree=1643904/2055920 swapFree=4192812/4192956
[pid=28539] ppid=28537 vsize=313716 CPUtime=0.49
/proc/28539/stat : 28539 (solver) R 28537 28539 28251 0 -1 4194304 77463 0 0 0 16 33 0 0 22 0 1 0 182406085 321245184 77431 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 1 0 0
/proc/28539/statm: 78429 77443 692 92 0 76773 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 313716

[startup+1.33278 s]
/proc/loadavg: 0.92 0.98 1.07 4/84 28540
/proc/meminfo: memFree=958272/2055920 swapFree=4192812/4192956
[pid=28539] ppid=28537 vsize=818296 CPUtime=1.31
/proc/28539/stat : 28539 (solver) R 28537 28539 28251 0 -1 4194304 203628 0 0 0 42 89 0 0 25 0 1 0 182406085 837935104 203596 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 7345787 0 0 4096 0 0 0 0 17 1 0 0
/proc/28539/statm: 204614 203607 692 92 0 202958 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 818296



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+1.53681 s]
/proc/loadavg: 1.01 1.00 1.08 3/84 28540
/proc/meminfo: memFree=699840/2055920 swapFree=4192812/4192956
[pid=28539] ppid=28537 vsize=948180 CPUtime=1.53
/proc/28539/stat : 28539 (solver) R 28537 28539 28251 0 -1 4194304 236073 0 0 0 48 105 0 0 25 0 1 0 182406085 970936320 236042 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 1 0 0
/proc/28539/statm: 237045 236048 692 92 0 235389 0
Current children cumulated CPU time (s) 1.53
Current children cumulated vsize (KiB) 948180

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 1.71222
CPU time (s): 1.68374
CPU user time (s): 0.481926
CPU system time (s): 1.20182
CPU usage (%): 98.337
Max. virtual memory (cumulated for all children) (KiB): 948180

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.481926
system time used= 1.20182
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 236103
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= 34

runsolver used 0.004999 s user time and 0.012998 s system time

The end

Launcher Data (download as text)

Begin job on node40 on Tue Jan  9 10:54:27 UTC 2007


IDJOB= 235844
IDBENCH= 6801
FILE ID= node40/235844-1168340067

PBS_JOBID= 3503428

Free space on /tmp= 66544 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fisher/FISCHER6-10-fair.xml
COMMAND LINE= /tmp/evaluation/235844-1168340067/mistral/bin/solver /tmp/evaluation/235844-1168340067/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node40/watcher-235844-1168340067 -o ROOT/results/node40/solver-235844-1168340067 -C 1800 -M 900  /tmp/evaluation/235844-1168340067/mistral/bin/solver /tmp/evaluation/235844-1168340067/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  5fb3fb1136e985c5df629509984b9500

RANDOM SEED= 64780039

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		: 3000.239
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		: 3000.239
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:       1645344 kB
Buffers:         42708 kB
Cached:         256084 kB
SwapCached:          0 kB
Active:         125644 kB
Inactive:       205832 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1645344 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           10676 kB
Writeback:           0 kB
Mapped:          52144 kB
Slab:            64476 kB
Committed_AS:  4774976 kB
PageTables:       1848 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= 66544 MiB



End job on node40 on Tue Jan  9 10:54:29 UTC 2007