Trace number 252370

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
CSPtoSAT+minisat 0.3UNSAT 8.22575 8.31541

General information on the benchmark

Namebmc/
bmc-ibm-07-02.xml
MD5SUMa142a61235129899052aa59942dd469c
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 benchmark2.56561
SatisfiableNO
(Un)Satisfiability was proved
Number of variables8710
Number of constraints48484
Maximum constraint arity33
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension48484
Global constraints used (with number of constraints)

Solver Data (download as text)

0.20	c This is CSPtoSAT+minisat version 0.3
0.20	c (c) 2006 roussel@cril.univ-artois.fr
0.20	
0.20	c This solver internally uses a modified version of MiniSat2 version 061112
0.20	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.20	
0.20	c parsing...
3.41	c ...done
3.41	c #SATvar=17422 #SATclauses=17420 #CSPpredicates=48484
8.30	c SAT problem is solved
8.30	restarts              : 8
8.30	conflicts             : 3391           (414 /sec)
8.30	decisions             : 773188         (1.92 % random) (94386 /sec)
8.30	propagations          : 3560444        (434638 /sec)
8.30	conflict literals     : 6016           (0.03 % deleted)
8.30	Memory used           : 18.56 MB
8.30	CPU time              : 8.19175 s
8.30	
8.30	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node17/watcher-252370-1168095652 -o ROOT/results/node17/solver-252370-1168095652 -C 1800 -M 900 /tmp/evaluation/252370-1168095652/CSPtoSAT+minisat /tmp/evaluation/252370-1168095652/unknown.xml 

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: 1.91 1.97 1.91 5/86 18381
/proc/meminfo: memFree=1595672/2055920 swapFree=4192812/4192956
[pid=18380] ppid=18378 vsize=18540 CPUtime=0
/proc/18380/stat : 18380 (runsolver) R 18378 18380 18325 0 -1 4194368 16 0 0 0 0 0 0 0 20 0 1 0 157959989 18984960 279 18446744073709551615 4194304 4267372 548682069072 18446744073709551615 245482712359 0 0 4096 24578 0 0 0 17 1 0 0
/proc/18380/statm: 4635 279 244 17 0 2626 0

[startup+0.108059 s]
/proc/loadavg: 1.91 1.97 1.91 5/86 18381
/proc/meminfo: memFree=1595672/2055920 swapFree=4192812/4192956
[pid=18380] ppid=18378 vsize=7484 CPUtime=0.09
/proc/18380/stat : 18380 (CSPtoSAT+minisa) R 18378 18380 18325 0 -1 4194304 952 0 0 0 9 0 0 0 18 0 1 0 157959989 7663616 920 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4158353850 0 0 4096 0 0 0 0 17 1 0 0
/proc/18380/statm: 1871 920 691 52 0 239 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7484

[startup+0.51709 s]
/proc/loadavg: 1.91 1.97 1.91 5/86 18381
/proc/meminfo: memFree=1595672/2055920 swapFree=4192812/4192956
[pid=18380] ppid=18378 vsize=10900 CPUtime=0.49
/proc/18380/stat : 18380 (CSPtoSAT+minisa) R 18378 18380 18325 0 -1 4194304 1801 0 0 0 49 0 0 0 22 0 1 0 157959989 11161600 1769 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4159310421 0 0 4096 0 0 0 0 17 1 0 0
/proc/18380/statm: 2725 1769 704 52 0 1093 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 10900

[startup+1.33818 s]
/proc/loadavg: 1.91 1.97 1.91 3/86 18381
/proc/meminfo: memFree=1589528/2055920 swapFree=4192812/4192956
[pid=18380] ppid=18378 vsize=13324 CPUtime=1.31
/proc/18380/stat : 18380 (CSPtoSAT+minisa) R 18378 18380 18325 0 -1 4194304 2384 0 0 0 130 1 0 0 25 0 1 0 157959989 13643776 2352 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4158439857 0 0 4096 0 0 0 0 17 1 0 0
/proc/18380/statm: 3331 2352 704 52 0 1699 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 13324

[startup+2.97535 s]
/proc/loadavg: 1.91 1.97 1.91 3/86 18381
/proc/meminfo: memFree=1586392/2055920 swapFree=4192812/4192956
[pid=18380] ppid=18378 vsize=17908 CPUtime=2.93
/proc/18380/stat : 18380 (CSPtoSAT+minisa) R 18378 18380 18325 0 -1 4194304 3574 0 0 0 291 2 0 0 25 0 1 0 157959989 18337792 3470 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134652215 0 0 4096 0 0 0 0 17 1 0 0
/proc/18380/statm: 4477 3470 704 52 0 2845 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 17908

[startup+6.2547 s]
/proc/loadavg: 1.92 1.97 1.91 3/86 18381
/proc/meminfo: memFree=1583256/2055920 swapFree=4192812/4192956
[pid=18380] ppid=18378 vsize=18872 CPUtime=6.18
/proc/18380/stat : 18380 (CSPtoSAT+minisa) R 18378 18380 18325 0 -1 4194304 3945 0 0 0 616 2 0 0 25 0 1 0 157959989 19324928 3767 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134533128 0 0 4096 0 0 0 0 17 1 0 0
/proc/18380/statm: 4718 3767 721 52 0 3086 0
Current children cumulated CPU time (s) 6.18
Current children cumulated vsize (KiB) 18872

Child status: 0
Real time (s): 8.31541
CPU time (s): 8.22575
CPU user time (s): 8.19575
CPU system time (s): 0.029995
CPU usage (%): 98.9218
Max. virtual memory (cumulated for all children) (KiB): 19004

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.19575
system time used= 0.029995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3972
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= 380

runsolver used 0.013997 s user time and 0.031995 s system time

The end

Launcher Data (download as text)

Begin job on node17 on Sat Jan  6 15:00:52 UTC 2007


IDJOB= 252370
IDBENCH= 12928
FILE ID= node17/252370-1168095652

PBS_JOBID= 3476452

Free space on /tmp= 66313 MiB

BENCH NAME= HOME/pub/bench/CPAI06/bmc/bmc-ibm-07-02.xml
COMMAND LINE= /tmp/evaluation/252370-1168095652/CSPtoSAT+minisat /tmp/evaluation/252370-1168095652/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node17/watcher-252370-1168095652 -o ROOT/results/node17/solver-252370-1168095652 -C 1800 -M 900  /tmp/evaluation/252370-1168095652/CSPtoSAT+minisat /tmp/evaluation/252370-1168095652/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  a142a61235129899052aa59942dd469c

RANDOM SEED= 813850967

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		: 3000.236
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		: 3000.236
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:       1596152 kB
Buffers:         39264 kB
Cached:         248580 kB
SwapCached:          0 kB
Active:         187800 kB
Inactive:       180724 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1596152 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            8232 kB
Writeback:           0 kB
Mapped:         103148 kB
Slab:            76176 kB
Committed_AS:  3929672 kB
PageTables:       2252 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= 66313 MiB



End job on node17 on Sat Jan  6 15:01:00 UTC 2007