Trace number 235675

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) 1.9737 2.00072

General information on the benchmark

Namefisher/
FISCHER8-7-fair.xml
MD5SUMbf1b56735afe01ba0467928f89499441
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 variables14823
Number of constraints14025
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension14025
Global constraints used (with number of constraints)

Solver Data (download as text)

0.20	c 
0.20	c Parsing xml file
0.20	c 	domains...............    0
0.20	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/node43/watcher-235675-1168339279 -o ROOT/results/node43/solver-235675-1168339279 -C 1800 -M 900 /tmp/evaluation/235675-1168339279/mistral/bin/solver /tmp/evaluation/235675-1168339279/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: 2.00 2.00 1.89 2/73 29688
/proc/meminfo: memFree=974104/2055920 swapFree=4192812/4192956
[pid=29687] ppid=29685 vsize=540 CPUtime=0
/proc/29687/stat : 29687 (solver) R 29685 29687 29034 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 182327118 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4731684 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/29687/statm: 135 26 21 92 0 18 0

[startup+0.103728 s]
/proc/loadavg: 2.00 2.00 1.89 2/73 29688
/proc/meminfo: memFree=974104/2055920 swapFree=4192812/4192956
[pid=29687] ppid=29685 vsize=50444 CPUtime=0.09
/proc/29687/stat : 29687 (solver) R 29685 29687 29034 0 -1 4194304 11624 0 0 0 2 7 0 0 18 0 1 0 182327118 51654656 11592 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 1 0 0
/proc/29687/statm: 12611 11592 692 92 0 10955 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 50444

[startup+0.515802 s]
/proc/loadavg: 2.00 2.00 1.89 2/73 29688
/proc/meminfo: memFree=974104/2055920 swapFree=4192812/4192956
[pid=29687] ppid=29685 vsize=258536 CPUtime=0.5
/proc/29687/stat : 29687 (solver) R 29685 29687 29034 0 -1 4194304 63648 0 0 0 13 37 0 0 22 0 1 0 182327118 264740864 63616 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 1 0 0
/proc/29687/statm: 64634 63616 692 92 0 62978 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 258536

[startup+1.34093 s]
/proc/loadavg: 2.00 2.00 1.89 3/73 29688
/proc/meminfo: memFree=412248/2055920 swapFree=4192812/4192956
[pid=29687] ppid=29685 vsize=670916 CPUtime=1.32
/proc/29687/stat : 29687 (solver) R 29685 29687 29034 0 -1 4194304 166774 0 0 0 33 99 0 0 25 0 1 0 182327118 687017984 166742 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 1 0 0
/proc/29687/statm: 167729 166742 692 92 0 166073 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 670916



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+1.85101 s]
/proc/loadavg: 2.00 2.00 1.89 3/73 29688
/proc/meminfo: memFree=52504/2055920 swapFree=4192812/4192956
[pid=29687] ppid=29685 vsize=926544 CPUtime=1.82
/proc/29687/stat : 29687 (solver) R 29685 29687 29034 0 -1 4194304 230659 0 0 0 47 135 0 0 25 0 1 0 182327118 948781056 230627 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 1 0 0
/proc/29687/statm: 231636 230627 692 92 0 229980 0
Current children cumulated CPU time (s) 1.82
Current children cumulated vsize (KiB) 926544

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 2.00072
CPU time (s): 1.9737
CPU user time (s): 0.478927
CPU system time (s): 1.49477
CPU usage (%): 98.6496
Max. virtual memory (cumulated for all children) (KiB): 926544

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.478927
system time used= 1.49477
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230659
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= 44

runsolver used 0.005999 s user time and 0.011998 s system time

The end

Launcher Data (download as text)

Begin job on node43 on Tue Jan  9 10:41:20 UTC 2007


IDJOB= 235675
IDBENCH= 6788
FILE ID= node43/235675-1168339279

PBS_JOBID= 3503379

Free space on /tmp= 66496 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fisher/FISCHER8-7-fair.xml
COMMAND LINE= /tmp/evaluation/235675-1168339279/mistral/bin/solver /tmp/evaluation/235675-1168339279/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node43/watcher-235675-1168339279 -o ROOT/results/node43/solver-235675-1168339279 -C 1800 -M 900  /tmp/evaluation/235675-1168339279/mistral/bin/solver /tmp/evaluation/235675-1168339279/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  bf1b56735afe01ba0467928f89499441

RANDOM SEED= 248492598

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		: 3000.278
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		: 3000.278
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:        974520 kB
Buffers:         10496 kB
Cached:         110204 kB
SwapCached:          0 kB
Active:         967808 kB
Inactive:        64272 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        974520 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            5520 kB
Writeback:           0 kB
Mapped:         922340 kB
Slab:            33028 kB
Committed_AS:  5146184 kB
PageTables:       3436 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= 66496 MiB



End job on node43 on Tue Jan  9 10:41:23 UTC 2007