Trace number 235727

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) 1.66675 1.69564

General information on the benchmark

Namefisher/
FISCHER8-9-fair.xml
MD5SUMa4b9bd9b5b6d4e4def8021cb3260aab4
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 benchmark1569.32
SatisfiableNO
(Un)Satisfiability was proved
Number of variables18879
Number of constraints17867
Maximum constraint arity3
Maximum domain size20001
Number of constraints which are defined in extension0
Number of constraints which are defined in intension17867
Global constraints used (with number of constraints)

Solver Data (download as text)

0.11	c 
0.11	c Parsing xml file
0.11	c 	domains...............    0
0.11	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/node6/watcher-235727-1168339473 -o ROOT/results/node6/solver-235727-1168339473 -C 1800 -M 900 /tmp/evaluation/235727-1168339473/mistral/bin/solver /tmp/evaluation/235727-1168339473/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: 2.06 2.00 2.00 5/87 23267
/proc/meminfo: memFree=1246040/2055924 swapFree=4165672/4192956
[pid=23266] ppid=23264 vsize=540 CPUtime=0
/proc/23266/stat : 23266 (solver) R 23264 23266 22898 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 182342802 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 2188068 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/23266/statm: 135 26 21 92 0 18 0

[startup+0.103633 s]
/proc/loadavg: 2.06 2.00 2.00 5/87 23267
/proc/meminfo: memFree=1246040/2055924 swapFree=4165672/4192956
[pid=23266] ppid=23264 vsize=61712 CPUtime=0.09
/proc/23266/stat : 23266 (solver) R 23264 23266 22898 0 -1 4194304 14413 0 0 0 3 6 0 0 19 0 1 0 182342802 63193088 14381 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 1 0 0
/proc/23266/statm: 15428 14381 692 92 0 13772 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 61712

[startup+0.514683 s]
/proc/loadavg: 2.06 2.00 2.00 5/87 23267
/proc/meminfo: memFree=1246040/2055924 swapFree=4165672/4192956
[pid=23266] ppid=23264 vsize=318772 CPUtime=0.49
/proc/23266/stat : 23266 (solver) R 23264 23266 22898 0 -1 4194304 78716 0 0 0 18 31 0 0 24 0 1 0 182342802 326422528 78684 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 2655198 0 0 4096 0 0 0 0 17 1 0 0
/proc/23266/statm: 79693 78684 692 92 0 78037 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 318772

[startup+1.33577 s]
/proc/loadavg: 2.06 2.00 2.00 3/87 23267
/proc/meminfo: memFree=545752/2055924 swapFree=4165672/4192956
[pid=23266] ppid=23264 vsize=832100 CPUtime=1.3
/proc/23266/stat : 23266 (solver) R 23264 23266 22898 0 -1 4194304 207024 0 0 0 46 84 0 0 25 0 1 0 182342802 852070400 206992 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804786 0 0 4096 0 0 0 0 17 1 0 0
/proc/23266/statm: 208025 206992 692 92 0 206369 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 832100



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+1.5398 s]
/proc/loadavg: 2.06 2.00 2.00 3/87 23267
/proc/meminfo: memFree=290072/2055924 swapFree=4165672/4192956
[pid=23266] ppid=23264 vsize=960864 CPUtime=1.5
/proc/23266/stat : 23266 (solver) R 23264 23266 22898 0 -1 4194304 239239 0 0 0 55 95 0 0 25 0 1 0 182342802 983924736 239207 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134804809 0 0 4096 0 0 0 0 17 1 0 0
/proc/23266/statm: 240216 239207 692 92 0 238560 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 960864

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 1.69564
CPU time (s): 1.66675
CPU user time (s): 0.557915
CPU system time (s): 1.10883
CPU usage (%): 98.2963
Max. virtual memory (cumulated for all children) (KiB): 960864

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.557915
system time used= 1.10883
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 239239
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= 12
involuntary context switches= 41

runsolver used 0.004999 s user time and 0.014997 s system time

The end

Launcher Data (download as text)

Begin job on node6 on Tue Jan  9 10:44:34 UTC 2007


IDJOB= 235727
IDBENCH= 6792
FILE ID= node6/235727-1168339473

PBS_JOBID= 3503156

Free space on /tmp= 66542 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fisher/FISCHER8-9-fair.xml
COMMAND LINE= /tmp/evaluation/235727-1168339473/mistral/bin/solver /tmp/evaluation/235727-1168339473/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-235727-1168339473 -o ROOT/results/node6/solver-235727-1168339473 -C 1800 -M 900  /tmp/evaluation/235727-1168339473/mistral/bin/solver /tmp/evaluation/235727-1168339473/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  a4b9bd9b5b6d4e4def8021cb3260aab4

RANDOM SEED= 668419205

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		: 3000.240
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		: 3000.240
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:      2055924 kB
MemFree:       1246520 kB
Buffers:        103856 kB
Cached:         546680 kB
SwapCached:       2944 kB
Active:         409960 kB
Inactive:       312936 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1246520 kB
SwapTotal:     4192956 kB
SwapFree:      4165672 kB
Dirty:            6360 kB
Writeback:           0 kB
Mapped:          82856 kB
Slab:            71156 kB
Committed_AS:  5998544 kB
PageTables:       2404 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= 66542 MiB



End job on node6 on Tue Jan  9 10:44:35 UTC 2007