Trace number 211051

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
Tramontane 2006-12-04? (MO) 2.44663 2.48213

General information on the benchmark

NamepseudoSeries/uclid/
blast-floppy1-8.xml
MD5SUM8328244b358bbf1855daa0e2f4003947
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark432.145
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables3618
Number of constraints3930
Maximum constraint arity25
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3930
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............. 0.07
0.20	c 	predicates............    0
0.20	c 	constraints........... 0.86
0.96	c Allocating memory
0.96	c 
0.96	c time limit = -1
0.96	c heuristic = dom/wdeg
0.96	c restart policy = Geometric increment
0.96	c restart base = 2411
0.96	c restart factor = 1.33
0.96	c 
0.96	c Solving
0.96	c

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/node55/watcher-211051-1168204705 -o ROOT/results/node55/solver-211051-1168204705 -C 1800 -M 900 /tmp/evaluation/211051-1168204705/tramontane/bin/solver /tmp/evaluation/211051-1168204705/unknown.xml -res geom -f 3 -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: 2.53 1.86 1.43 4/81 20877
/proc/meminfo: memFree=806456/2055920 swapFree=4192812/4192956
[pid=20876] ppid=20874 vsize=540 CPUtime=0
/proc/20876/stat : 20876 (solver) R 20874 20876 20036 0 -1 4194304 41 0 0 0 0 0 0 0 18 0 1 0 168868815 552960 26 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 6849316 0 2147483391 4096 0 0 0 0 17 0 0 0
/proc/20876/statm: 135 26 21 92 0 18 0

[startup+0.103585 s]
/proc/loadavg: 2.53 1.86 1.43 4/81 20877
/proc/meminfo: memFree=806456/2055920 swapFree=4192812/4192956
[pid=20876] ppid=20874 vsize=7848 CPUtime=0.09
/proc/20876/stat : 20876 (solver) R 20874 20876 20036 0 -1 4194304 1049 0 0 0 9 0 0 0 18 0 1 0 168868815 8036352 1017 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 7282346 0 0 4096 0 0 0 0 17 1 0 0
/proc/20876/statm: 1962 1017 703 92 0 306 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7848

[startup+0.511629 s]
/proc/loadavg: 2.53 1.86 1.43 4/81 20877
/proc/meminfo: memFree=806456/2055920 swapFree=4192812/4192956
[pid=20876] ppid=20874 vsize=21384 CPUtime=0.49
/proc/20876/stat : 20876 (solver) R 20874 20876 20036 0 -1 4194304 4426 0 0 0 47 2 0 0 22 0 1 0 168868815 21897216 4394 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 134604347 0 0 4096 0 0 0 0 17 1 0 0
/proc/20876/statm: 5346 4394 712 92 0 3690 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 21384

[startup+1.33271 s]
/proc/loadavg: 2.53 1.86 1.43 3/81 20877
/proc/meminfo: memFree=668856/2055920 swapFree=4192812/4192956
[pid=20876] ppid=20874 vsize=387400 CPUtime=1.31
/proc/20876/stat : 20876 (solver) R 20874 20876 20036 0 -1 4194304 65597 0 0 0 98 33 0 0 25 0 1 0 168868815 396697600 65475 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 134543906 0 0 4096 0 0 0 0 17 1 0 0
/proc/20876/statm: 96850 65475 719 92 0 95194 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 387400



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+2.35881 s]
/proc/loadavg: 2.57 1.88 1.44 3/81 20877
/proc/meminfo: memFree=74104/2055920 swapFree=4192812/4192956
[pid=20876] ppid=20874 vsize=958788 CPUtime=2.32
/proc/20876/stat : 20876 (solver) R 20874 20876 20036 0 -1 4194304 183362 0 0 0 135 97 0 0 25 0 1 0 168868815 981798912 183240 18446744073709551615 134512640 134893233 4294956656 18446744073709551615 7290597 0 0 4096 0 0 0 0 17 1 0 0
/proc/20876/statm: 239697 183240 720 92 0 238041 0
Current children cumulated CPU time (s) 2.32
Current children cumulated vsize (KiB) 958788

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 2.48213
CPU time (s): 2.44663
CPU user time (s): 1.35379
CPU system time (s): 1.09283
CPU usage (%): 98.5695
Max. virtual memory (cumulated for all children) (KiB): 958788

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.35379
system time used= 1.09283
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 183362
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= 11
involuntary context switches= 115

runsolver used 0.007998 s user time and 0.016997 s system time

The end

Launcher Data (download as text)

Begin job on node55 on Sun Jan  7 21:18:25 UTC 2007


IDJOB= 211051
IDBENCH= 4664
FILE ID= node55/211051-1168204705

PBS_JOBID= 3480773

Free space on /tmp= 66554 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pseudoSeries/uclid/blast-floppy1-8.xml
COMMAND LINE= /tmp/evaluation/211051-1168204705/tramontane/bin/solver /tmp/evaluation/211051-1168204705/unknown.xml -res geom -f 3 -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-211051-1168204705 -o ROOT/results/node55/solver-211051-1168204705 -C 1800 -M 900  /tmp/evaluation/211051-1168204705/tramontane/bin/solver /tmp/evaluation/211051-1168204705/unknown.xml -res geom -f 3 -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  8328244b358bbf1855daa0e2f4003947

RANDOM SEED= 473114464

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		: 3000.218
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	: 5931.00
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		: 3000.218
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:        806872 kB
Buffers:         40688 kB
Cached:         480328 kB
SwapCached:          0 kB
Active:         802088 kB
Inactive:       388520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        806872 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3928 kB
Writeback:           0 kB
Mapped:         687768 kB
Slab:            42540 kB
Committed_AS:  4271476 kB
PageTables:       3068 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= 66554 MiB



End job on node55 on Sun Jan  7 21:18:28 UTC 2007