Trace number 236078

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) 1.56976 1.58544

General information on the benchmark

Namefisher/
FISCHER6-9-fair.xml
MD5SUM0d771d6ff98823fb4d1a9a2377463478
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 benchmark1569.57
SatisfiableNO
(Un)Satisfiability was proved
Number of variables14103
Number of constraints13337
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension13337
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/node76/watcher-236078-1168341285 -o ROOT/results/node76/solver-236078-1168341285 -C 1800 -M 900 /tmp/evaluation/236078-1168341285/mistral/bin/solver /tmp/evaluation/236078-1168341285/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: 1.02 1.00 1.22 4/86 31149
/proc/meminfo: memFree=1755640/2055888 swapFree=4095388/4096564
[pid=31148] ppid=31146 vsize=5528 CPUtime=0
/proc/31148/stat : 31148 (solver) R 31146 31148 30760 0 -1 4194304 67 0 0 0 0 0 0 0 20 0 1 0 182525655 5660672 51 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4817972 0 0 4096 0 0 0 0 17 1 0 0
/proc/31148/statm: 1382 51 39 92 0 24 0

[startup+0.107426 s]
/proc/loadavg: 1.02 1.00 1.22 4/86 31149
/proc/meminfo: memFree=1755640/2055888 swapFree=4095388/4096564
[pid=31148] ppid=31146 vsize=66492 CPUtime=0.09
/proc/31148/stat : 31148 (solver) R 31146 31148 30760 0 -1 4194304 15669 0 0 0 3 6 0 0 21 0 1 0 182525655 68087808 15638 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 5308881 0 0 4096 0 0 0 0 17 0 0 0
/proc/31148/statm: 16623 15638 692 92 0 14966 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 66492

[startup+0.515515 s]
/proc/loadavg: 1.02 1.00 1.22 4/86 31149
/proc/meminfo: memFree=1755640/2055888 swapFree=4095388/4096564
[pid=31148] ppid=31146 vsize=333568 CPUtime=0.5
/proc/31148/stat : 31148 (solver) R 31146 31148 30760 0 -1 4194304 82439 0 0 0 15 35 0 0 25 0 1 0 182525655 341573632 82408 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 0 0 0
/proc/31148/statm: 83392 82408 692 92 0 81735 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 333568

[startup+1.33667 s]
/proc/loadavg: 1.26 1.05 1.23 3/86 31149
/proc/meminfo: memFree=1027448/2055888 swapFree=4095388/4096564
[pid=31148] ppid=31146 vsize=867244 CPUtime=1.31
/proc/31148/stat : 31148 (solver) R 31146 31148 30760 0 -1 4194304 215864 0 0 0 42 89 0 0 25 0 1 0 182525655 888057856 215833 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 0 0 0
/proc/31148/statm: 216811 215833 692 92 0 215154 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 867244



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+1.43869 s]
/proc/loadavg: 1.26 1.05 1.23 3/86 31149
/proc/meminfo: memFree=826744/2055888 swapFree=4095388/4096564
[pid=31148] ppid=31146 vsize=934008 CPUtime=1.42
/proc/31148/stat : 31148 (solver) R 31146 31148 30760 0 -1 4194304 232526 0 0 0 46 96 0 0 25 0 1 0 182525655 956424192 232495 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804793 0 0 4096 0 0 0 0 17 0 0 0
/proc/31148/statm: 233502 232495 692 92 0 231845 0
Current children cumulated CPU time (s) 1.42
Current children cumulated vsize (KiB) 934008

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 1.58544
CPU time (s): 1.56976
CPU user time (s): 0.464929
CPU system time (s): 1.10483
CPU usage (%): 99.0108
Max. virtual memory (cumulated for all children) (KiB): 934008

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.464929
system time used= 1.10483
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 232526
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= 57

runsolver used 0.004999 s user time and 0.012998 s system time

The end

Launcher Data (download as text)

Begin job on node76 on Tue Jan  9 11:14:46 UTC 2007


IDJOB= 236078
IDBENCH= 6819
FILE ID= node76/236078-1168341285

PBS_JOBID= 3503487

Free space on /tmp= 66638 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fisher/FISCHER6-9-fair.xml
COMMAND LINE= /tmp/evaluation/236078-1168341285/mistral/bin/solver /tmp/evaluation/236078-1168341285/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node76/watcher-236078-1168341285 -o ROOT/results/node76/solver-236078-1168341285 -C 1800 -M 900  /tmp/evaluation/236078-1168341285/mistral/bin/solver /tmp/evaluation/236078-1168341285/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  0d771d6ff98823fb4d1a9a2377463478

RANDOM SEED= 9603826

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		: 3000.254
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	: 6006.17
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		: 3000.254
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	: 5999.42
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055888 kB
MemFree:       1755992 kB
Buffers:         30276 kB
Cached:         132648 kB
SwapCached:        276 kB
Active:         127992 kB
Inactive:       102256 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055888 kB
LowFree:       1755992 kB
SwapTotal:     4096564 kB
SwapFree:      4095388 kB
Dirty:           10716 kB
Writeback:           0 kB
Mapped:          85164 kB
Slab:            55084 kB
Committed_AS:  7569392 kB
PageTables:       1972 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66638 MiB



End job on node76 on Tue Jan  9 11:14:47 UTC 2007