Trace number 2075638

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 1.545UNSAT 2.81257 2.84909

DiagnosticValue
ASSIGNMENTS0
CHECKS26171
NODES0

General information on the benchmark

Namecsp/bmc/
normalized-bmc-ibm-07-04.xml
MD5SUMccfad6ca6d3ab1a88cfd688d6d76a1b2
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 benchmark2.81257
Satisfiable
(Un)Satisfiability was proved
Number of variables8710
Number of constraints48484
Maximum constraint arity33
Maximum domain size4
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 

0.18/0.23	c mistral version 1.545
2.47/2.56	s UNSATISFIABLE
2.47/2.56	d CHECKS 26171
2.47/2.56	d ASSIGNMENTS 0
2.47/2.56	d NODES 0 BACKTRACKS 0 FAILURES 0 RUNTIME 0.04 TOTALTIME 2.52 NODES/s 0 CHECKS/s 654275

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2075638-1247361844/watcher-2075638-1247361844 -o /tmp/evaluation-result-2075638-1247361844/solver-2075638-1247361844 -C 1800 -W 2000 -M 900 /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2075638-1247361844.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 4/84 21831
/proc/meminfo: memFree=1639496/2055924 swapFree=4192812/4192956
[pid=21831] ppid=21829 vsize=18576 CPUtime=0
/proc/21831/stat : 21831 (runsolver) R 21829 21831 17663 0 -1 4194368 15 0 0 0 0 0 0 0 19 0 1 0 23251895 19021824 284 996147200 4194304 4302564 548682068496 18446744073709551615 268582841639 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/21831/statm: 4644 284 249 26 0 2626 0

[startup+0.0709769 s]
/proc/loadavg: 2.00 2.00 2.00 4/84 21831
/proc/meminfo: memFree=1639496/2055924 swapFree=4192812/4192956
[pid=21831] ppid=21829 vsize=6404 CPUtime=0.05
/proc/21831/stat : 21831 (ld-linux.so.2) R 21829 21831 17663 0 -1 4194304 776 0 0 0 5 0 0 0 18 0 1 0 23251895 6557696 755 996147200 1448431616 1448550632 4294956208 18446744073709551615 134661455 0 0 4096 0 0 0 0 17 1 0 0
/proc/21831/statm: 1601 755 362 29 0 416 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 6404

[startup+0.101982 s]
/proc/loadavg: 2.00 2.00 2.00 4/84 21831
/proc/meminfo: memFree=1639496/2055924 swapFree=4192812/4192956
[pid=21831] ppid=21829 vsize=6672 CPUtime=0.08
/proc/21831/stat : 21831 (ld-linux.so.2) R 21829 21831 17663 0 -1 4194304 867 0 0 0 8 0 0 0 18 0 1 0 23251895 6832128 846 996147200 1448431616 1448550632 4294956208 18446744073709551615 134698815 0 0 4096 0 0 0 0 17 1 0 0
/proc/21831/statm: 1668 846 372 29 0 483 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 6672

[startup+0.302023 s]
/proc/loadavg: 2.00 2.00 2.00 4/84 21831
/proc/meminfo: memFree=1639496/2055924 swapFree=4192812/4192956
[pid=21831] ppid=21829 vsize=8868 CPUtime=0.28
/proc/21831/stat : 21831 (ld-linux.so.2) R 21829 21831 17663 0 -1 4194304 1396 0 0 0 28 0 0 0 19 0 1 0 23251895 9080832 1375 996147200 1448431616 1448550632 4294956208 18446744073709551615 134689418 0 0 4096 0 0 0 0 17 1 0 0
/proc/21831/statm: 2217 1375 372 29 0 1032 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 8868

[startup+0.7011 s]
/proc/loadavg: 2.00 2.00 2.00 4/84 21831
/proc/meminfo: memFree=1639496/2055924 swapFree=4192812/4192956
[pid=21831] ppid=21829 vsize=12088 CPUtime=0.68
/proc/21831/stat : 21831 (ld-linux.so.2) R 21829 21831 17663 0 -1 4194304 2209 0 0 0 67 1 0 0 23 0 1 0 23251895 12378112 2188 996147200 1448431616 1448550632 4294956208 18446744073709551615 134706006 0 0 4096 0 0 0 0 17 1 0 0
/proc/21831/statm: 3022 2188 378 29 0 1837 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 12088

[startup+1.50126 s]
/proc/loadavg: 2.00 2.00 2.00 3/85 21832
/proc/meminfo: memFree=1629824/2055924 swapFree=4192812/4192956
[pid=21831] ppid=21829 vsize=18180 CPUtime=1.47
/proc/21831/stat : 21831 (ld-linux.so.2) R 21829 21831 17663 0 -1 4194304 3699 0 0 0 146 1 0 0 25 0 1 0 23251895 18616320 3678 996147200 1448431616 1448550632 4294956208 18446744073709551615 4159732854 0 0 4096 0 0 0 0 17 1 0 0
/proc/21831/statm: 4545 3678 378 29 0 3360 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 18180

Solver just ended. Dumping a history of the last processes samples

[startup+2.30142 s]
/proc/loadavg: 2.00 2.00 2.00 3/85 21832
/proc/meminfo: memFree=1621120/2055924 swapFree=4192812/4192956
[pid=21831] ppid=21829 vsize=25616 CPUtime=2.26
/proc/21831/stat : 21831 (ld-linux.so.2) R 21829 21831 17663 0 -1 4194304 5578 0 0 0 224 2 0 0 25 0 1 0 23251895 26230784 5557 996147200 1448431616 1448550632 4294956208 18446744073709551615 134975088 0 0 4096 0 0 0 0 17 1 0 0
/proc/21831/statm: 6404 5557 386 29 0 5219 0
Current children cumulated CPU time (s) 2.26
Current children cumulated vsize (KiB) 25616

[startup+2.70257 s]
/proc/loadavg: 2.00 2.00 2.00 3/85 21832
/proc/meminfo: memFree=1621120/2055924 swapFree=4192812/4192956
[pid=21831] ppid=21829 vsize=56604 CPUtime=2.65
/proc/21831/stat : 21831 (ld-linux.so.2) R 21829 21831 17663 0 -1 4194304 13776 0 0 0 259 6 0 0 25 0 1 0 23251895 57962496 9256 996147200 1448431616 1448550632 4294956208 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/21831/statm: 14151 9256 455 29 0 12966 0
Current children cumulated CPU time (s) 2.65
Current children cumulated vsize (KiB) 56604

[startup+2.80252 s]
/proc/loadavg: 2.00 2.00 2.00 3/85 21832
/proc/meminfo: memFree=1621120/2055924 swapFree=4192812/4192956
[pid=21831] ppid=21829 vsize=26144 CPUtime=2.76
/proc/21831/stat : 21831 (ld-linux.so.2) R 21829 21831 17663 0 -1 4194304 13783 0 0 0 269 7 0 0 25 0 1 0 23251895 26771456 5788 996147200 1448431616 1448550632 4294956208 18446744073709551615 4157373414 0 0 4096 0 0 0 0 17 1 0 0
/proc/21831/statm: 6536 5788 462 29 0 5351 0
Current children cumulated CPU time (s) 2.76
Current children cumulated vsize (KiB) 26144

Child status: 0
Real time (s): 2.84909
CPU time (s): 2.81257
CPU user time (s): 2.73758
CPU system time (s): 0.074988
CPU usage (%): 98.7182
Max. virtual memory (cumulated for all children) (KiB): 57420

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.73758
system time used= 0.074988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 13784
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= 24
involuntary context switches= 122

runsolver used 0.005999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node6 at 2009-07-12 03:24:05
IDJOB=2075638
IDBENCH=56331
IDSOLVER=769
FILE ID=node6/2075638-1247361844
PBS_JOBID= 9506832
Free space on /tmp= 66388 MiB

SOLVER NAME= Mistral 1.545
BENCH NAME= CPAI08/csp/bmc/normalized-bmc-ibm-07-04.xml
COMMAND LINE= /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2075638-1247361844/watcher-2075638-1247361844 -o /tmp/evaluation-result-2075638-1247361844/solver-2075638-1247361844 -C 1800 -W 2000 -M 900  /home/evaluation/evaluation/libc32/lib/ld-linux.so.2 ./xsolve HOME/instance-2075638-1247361844.xml

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= ccfad6ca6d3ab1a88cfd688d6d76a1b2
RANDOM SEED=496690450

node6.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.263
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		: 3000.263
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:       1639976 kB
Buffers:         25300 kB
Cached:         106212 kB
SwapCached:          0 kB
Active:         324952 kB
Inactive:        43824 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1639976 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            7816 kB
Writeback:           0 kB
Mapped:         252960 kB
Slab:            32136 kB
Committed_AS:   873152 kB
PageTables:       2292 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= 66388 MiB
End job on node6 at 2009-07-12 03:24:08