Trace number 2079700

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
pcs 0.3.2UNSAT 234.559 235.514

DiagnosticValue
ASSIGNMENTS73377

General information on the benchmark

Namecsp/rand-3-20-20/
normalized-rand-3-20-20-60-632-45_ext.xml
MD5SUMe796ae923cb124c016369356469dc7e4
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark11.6062
Satisfiable
(Un)Satisfiability was proved
Number of variables20
Number of constraints57
Maximum constraint arity3
Maximum domain size20
Number of constraints which are defined in extension57
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data 

0.00/0.01	c small-domain mode
0.00/0.02	c Seed is 873706731
0.00/0.02	c Constructing HOME/instance-2079700-1247716959.xml  with 57 constraints
0.37/0.40	c Solving 73377 backtracks 19 restarts
234.52/235.51	s UNSATISFIABLE
234.52/235.51	d ASSIGNMENTS 73377

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-2079700-1247716959/watcher-2079700-1247716959 -o /tmp/evaluation-result-2079700-1247716959/solver-2079700-1247716959 -C 1800 -W 2000 -M 900 HOME/pcssolve -s 873706731 HOME/instance-2079700-1247716959.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: 2.06 2.17 2.08 4/73 18254
/proc/meminfo: memFree=1622728/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=5356 CPUtime=0
/proc/18254/stat : 18254 (pcssolve) R 18252 18254 17322 0 -1 4194304 348 649 0 0 0 0 0 0 16 0 1 0 58760983 5484544 243 996147200 4194304 4889804 548682068800 18446744073709551615 251279239839 0 65538 4100 65536 0 0 0 17 1 0 0
/proc/18254/statm: 1339 243 202 169 0 50 0
[pid=18259] ppid=18254 vsize=3688 CPUtime=0
/proc/18259/stat : 18259 (grep) R 18254 18254 17322 0 -1 4194304 165 0 0 0 0 0 0 0 16 0 1 0 58760984 3776512 133 996147200 4194304 4274172 548682068960 18446744073709551615 251279086305 0 0 4096 0 0 0 0 17 1 0 0
/proc/18259/statm: 922 133 98 19 0 46 0

[startup+0.081526 s]
/proc/loadavg: 2.06 2.17 2.08 4/73 18254
/proc/meminfo: memFree=1622728/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=5216 CPUtime=0.06
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 936 822 0 0 6 0 0 0 18 0 1 0 58760983 5341184 545 996147200 134512640 135095119 4294956304 18446744073709551615 4484844 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 1304 545 375 142 0 258 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 5216

[startup+0.101521 s]
/proc/loadavg: 2.06 2.17 2.08 4/73 18254
/proc/meminfo: memFree=1622728/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=5620 CPUtime=0.08
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 974 822 0 0 8 0 0 0 18 0 1 0 58760983 5754880 583 996147200 134512640 135095119 4294956304 18446744073709551615 134739554 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 1405 583 375 142 0 359 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 5620

[startup+0.30155 s]
/proc/loadavg: 2.06 2.17 2.08 4/73 18254
/proc/meminfo: memFree=1622728/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=8444 CPUtime=0.27
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 1347 822 0 0 27 0 0 0 19 0 1 0 58760983 8646656 956 996147200 134512640 135095119 4294956304 18446744073709551615 134944940 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 2111 956 375 142 0 1065 0
Current children cumulated CPU time (s) 0.27
Current children cumulated vsize (KiB) 8444

[startup+0.701603 s]
/proc/loadavg: 2.06 2.17 2.08 4/73 18254
/proc/meminfo: memFree=1622728/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=9976 CPUtime=0.67
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 1554 822 0 0 67 0 0 0 23 0 1 0 58760983 10215424 1163 996147200 134512640 135095119 4294956304 18446744073709551615 134927075 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 2494 1163 389 142 0 1448 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 9976

[startup+1.5017 s]
/proc/loadavg: 2.06 2.17 2.08 3/74 18260
/proc/meminfo: memFree=1619392/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=9976 CPUtime=1.47
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 1558 822 0 0 147 0 0 0 25 0 1 0 58760983 10215424 1167 996147200 134512640 135095119 4294956304 18446744073709551615 134918271 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 2494 1167 389 142 0 1448 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 9976

[startup+3.1029 s]
/proc/loadavg: 2.06 2.17 2.08 3/74 18260
/proc/meminfo: memFree=1619136/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=10108 CPUtime=3.07
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 1597 822 0 0 307 0 0 0 25 0 1 0 58760983 10350592 1206 996147200 134512640 135095119 4294956304 18446744073709551615 134918187 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 2527 1206 389 142 0 1481 0
Current children cumulated CPU time (s) 3.07
Current children cumulated vsize (KiB) 10108

[startup+6.3013 s]
/proc/loadavg: 2.05 2.16 2.08 3/74 18260
/proc/meminfo: memFree=1618688/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=10236 CPUtime=6.25
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 1670 822 0 0 625 0 0 0 25 0 1 0 58760983 10481664 1246 996147200 134512640 135095119 4294956304 18446744073709551615 134916454 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 2559 1246 389 142 0 1513 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 10236

[startup+12.7011 s]
/proc/loadavg: 2.05 2.16 2.08 3/74 18260
/proc/meminfo: memFree=1618048/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=10624 CPUtime=12.62
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 1852 822 0 0 1262 0 0 0 25 0 1 0 58760983 10878976 1363 996147200 134512640 135095119 4294956304 18446744073709551615 134911427 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 2656 1363 389 142 0 1610 0
Current children cumulated CPU time (s) 12.62
Current children cumulated vsize (KiB) 10624

[startup+25.5017 s]
/proc/loadavg: 2.19 2.18 2.09 3/74 18260
/proc/meminfo: memFree=1616640/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=11264 CPUtime=25.37
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 2237 822 0 0 2536 1 0 0 25 0 1 0 58760983 11534336 1586 996147200 134512640 135095119 4294956304 18446744073709551615 134926990 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 2816 1586 389 142 0 1770 0
Current children cumulated CPU time (s) 25.37
Current children cumulated vsize (KiB) 11264

[startup+51.1019 s]
/proc/loadavg: 2.20 2.18 2.09 3/74 18260
/proc/meminfo: memFree=1613056/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=12544 CPUtime=50.87
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 3009 822 0 0 5085 2 0 0 25 0 1 0 58760983 12845056 2036 996147200 134512640 135095119 4294956304 18446744073709551615 134927011 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 3136 2036 389 142 0 2090 0
Current children cumulated CPU time (s) 50.87
Current children cumulated vsize (KiB) 12544

[startup+102.306 s]
/proc/loadavg: 2.14 2.17 2.09 3/74 18260
/proc/meminfo: memFree=1605312/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=16020 CPUtime=101.87
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 4620 822 0 0 10184 3 0 0 25 0 1 0 58760983 16404480 3005 996147200 134512640 135095119 4294956304 18446744073709551615 134927091 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 4005 3005 389 142 0 2959 0
Current children cumulated CPU time (s) 101.87
Current children cumulated vsize (KiB) 16020

[startup+162.302 s]
/proc/loadavg: 2.13 2.17 2.09 3/74 18260
/proc/meminfo: memFree=1596224/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=23756 CPUtime=161.62
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 7128 822 0 0 16158 4 0 0 25 0 1 0 58760983 24326144 4198 996147200 134512640 135095119 4294956304 18446744073709551615 134927082 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 5939 4198 389 142 0 4893 0
Current children cumulated CPU time (s) 161.62
Current children cumulated vsize (KiB) 23756

[startup+222.302 s]
/proc/loadavg: 2.10 2.15 2.09 3/74 18260
/proc/meminfo: memFree=1584768/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=30536 CPUtime=221.38
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 9452 822 0 0 22132 6 0 0 25 0 1 0 58760983 31268864 5944 996147200 134512640 135095119 4294956304 18446744073709551615 134927008 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 7634 5944 389 142 0 6588 0
Current children cumulated CPU time (s) 221.38
Current children cumulated vsize (KiB) 30536

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

[startup+223.902 s]
/proc/loadavg: 2.10 2.15 2.09 3/74 18260
/proc/meminfo: memFree=1584640/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=30536 CPUtime=222.97
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 9466 822 0 0 22291 6 0 0 25 0 1 0 58760983 31268864 5958 996147200 134512640 135095119 4294956304 18446744073709551615 134918224 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 7634 5958 389 142 0 6588 0
Current children cumulated CPU time (s) 222.97
Current children cumulated vsize (KiB) 30536

[startup+230.302 s]
/proc/loadavg: 2.08 2.14 2.09 3/74 18260
/proc/meminfo: memFree=1583936/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=30536 CPUtime=229.34
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 9525 822 0 0 22928 6 0 0 25 0 1 0 58760983 31268864 6017 996147200 134512640 135095119 4294956304 18446744073709551615 134918185 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 7634 6017 389 142 0 6588 0
Current children cumulated CPU time (s) 229.34
Current children cumulated vsize (KiB) 30536

[startup+233.502 s]
/proc/loadavg: 2.08 2.14 2.09 3/74 18260
/proc/meminfo: memFree=1583552/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=30536 CPUtime=232.53
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 9554 822 0 0 23247 6 0 0 25 0 1 0 58760983 31268864 6046 996147200 134512640 135095119 4294956304 18446744073709551615 134918166 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 7634 6046 389 142 0 6588 0
Current children cumulated CPU time (s) 232.53
Current children cumulated vsize (KiB) 30536

[startup+234.307 s]
/proc/loadavg: 2.08 2.14 2.09 3/74 18260
/proc/meminfo: memFree=1583424/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=30536 CPUtime=233.33
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 9561 822 0 0 23327 6 0 0 25 0 1 0 58760983 31268864 6053 996147200 134512640 135095119 4294956304 18446744073709551615 134918266 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 7634 6053 389 142 0 6588 0
Current children cumulated CPU time (s) 233.33
Current children cumulated vsize (KiB) 30536

[startup+235.101 s]
/proc/loadavg: 2.08 2.14 2.09 3/74 18260
/proc/meminfo: memFree=1583424/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=30536 CPUtime=234.13
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 9569 822 0 0 23407 6 0 0 25 0 1 0 58760983 31268864 6061 996147200 134512640 135095119 4294956304 18446744073709551615 134916450 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 7634 6061 389 142 0 6588 0
Current children cumulated CPU time (s) 234.13
Current children cumulated vsize (KiB) 30536

[startup+235.501 s]
/proc/loadavg: 2.07 2.14 2.09 3/74 18260
/proc/meminfo: memFree=1583296/2055920 swapFree=4192812/4192956
[pid=18254] ppid=18252 vsize=26436 CPUtime=234.52
/proc/18254/stat : 18254 (pcs.small) R 18252 18254 17322 0 -1 4194304 9572 822 0 0 23446 6 0 0 25 0 1 0 58760983 27070464 5490 996147200 134512640 135095119 4294956304 18446744073709551615 4472984 0 0 4096 0 0 0 0 17 0 0 0
/proc/18254/statm: 6609 5490 389 142 0 5563 0
Current children cumulated CPU time (s) 234.52
Current children cumulated vsize (KiB) 26436

Child status: 0
Real time (s): 235.514
CPU time (s): 234.559
CPU user time (s): 234.484
CPU system time (s): 0.074988
CPU usage (%): 99.5948
Max. virtual memory (cumulated for all children) (KiB): 30536

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 234.484
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= 10397
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= 21
involuntary context switches= 3344

runsolver used 0.242963 second user time and 0.622905 second system time

The end

Launcher Data 

Begin job on node92 at 2009-07-16 06:02:40
IDJOB=2079700
IDBENCH=56939
IDSOLVER=733
FILE ID=node92/2079700-1247716959
PBS_JOBID= 9521414
Free space on /tmp= 66304 MiB

SOLVER NAME= pcs 0.2
BENCH NAME= CPAI08/csp/rand-3-20-20/normalized-rand-3-20-20-60-632-45_ext.xml
COMMAND LINE= HOME/pcssolve -s RANDOMSEED BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2079700-1247716959/watcher-2079700-1247716959 -o /tmp/evaluation-result-2079700-1247716959/solver-2079700-1247716959 -C 1800 -W 2000 -M 900  HOME/pcssolve -s 873706731 HOME/instance-2079700-1247716959.xml

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

MD5SUM BENCH= e796ae923cb124c016369356469dc7e4
RANDOM SEED=873706731

node92.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		: 3000.216
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		: 3000.216
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1623208 kB
Buffers:         74440 kB
Cached:         227344 kB
SwapCached:          0 kB
Active:         133504 kB
Inactive:       229632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1623208 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3012 kB
Writeback:           0 kB
Mapped:          72804 kB
Slab:            54840 kB
Committed_AS:   528824 kB
PageTables:       1936 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= 66300 MiB
End job on node92 at 2009-07-16 06:06:35