Trace number 202125

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
VALCSP 3.0? (MO) 80.3218 80.8284

General information on the benchmark

Namefapp/fapp21-25/fapp24/
fapp24-2000-9.xml
MD5SUM99b4a6f18c5a7267e849490799459a8e
Bench Category2-ARY-INT (binary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark11.0943
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables2000
Number of constraints26753
Maximum constraint arity2
Maximum domain size302
Number of constraints which are defined in extension0
Number of constraints which are defined in intension26753
Global constraints used (with number of constraints)

Solver Data (download as text)



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/node61/watcher-202125-1168150589 -o ROOT/results/node61/solver-202125-1168150589 -C 1800 -M 900 /tmp/evaluation/202125-1168150589/VALCSP /tmp/evaluation/202125-1168150589/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: 0.05 0.62 1.24 4/69 1237
/proc/meminfo: memFree=1752392/2055920 swapFree=4192812/4192956
[pid=1236] ppid=1233 vsize=3612 CPUtime=0
/proc/1236/stat : 1236 (VALCSP) R 1233 1236 1050 0 -1 4194304 628 0 0 0 0 0 0 0 18 0 1 0 163458010 3698688 606 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134534827 0 0 4096 0 0 0 0 17 1 0 0
/proc/1236/statm: 903 613 62 8 0 575 0

[startup+0.107276 s]
/proc/loadavg: 0.05 0.62 1.24 4/69 1237
/proc/meminfo: memFree=1752392/2055920 swapFree=4192812/4192956
[pid=1236] ppid=1233 vsize=61100 CPUtime=0.1
/proc/1236/stat : 1236 (VALCSP) R 1233 1236 1050 0 -1 4194304 14859 0 0 0 4 6 0 0 18 0 1 0 163458010 62566400 14837 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 1 0 0
/proc/1236/statm: 15275 14837 65 8 0 14947 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 61100

[startup+0.516338 s]
/proc/loadavg: 0.05 0.62 1.24 4/69 1237
/proc/meminfo: memFree=1752392/2055920 swapFree=4192812/4192956
[pid=1236] ppid=1233 vsize=65192 CPUtime=0.51
/proc/1236/stat : 1236 (VALCSP) R 1233 1236 1050 0 -1 4194304 15898 0 0 0 45 6 0 0 21 0 1 0 163458010 66756608 15876 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/1236/statm: 16298 15876 65 8 0 15970 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 65192

[startup+1.34248 s]
/proc/loadavg: 0.05 0.62 1.24 2/68 1270
/proc/meminfo: memFree=1673736/2055920 swapFree=4192812/4192956
[pid=1236] ppid=1233 vsize=74168 CPUtime=1.33
/proc/1236/stat : 1236 (VALCSP) R 1233 1236 1050 0 -1 4194304 18151 0 0 0 126 7 0 0 25 0 1 0 163458010 75948032 18129 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530283 0 0 4096 0 0 0 0 17 1 0 0
/proc/1236/statm: 18542 18129 65 8 0 18214 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 74168

[startup+2.97877 s]
/proc/loadavg: 0.05 0.62 1.24 2/68 1270
/proc/meminfo: memFree=1662152/2055920 swapFree=4192812/4192956
[pid=1236] ppid=1233 vsize=90140 CPUtime=2.96
/proc/1236/stat : 1236 (VALCSP) R 1233 1236 1050 0 -1 4194304 22140 0 0 0 287 9 0 0 25 0 1 0 163458010 92303360 22118 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530957 0 0 4096 0 0 0 0 17 1 0 0
/proc/1236/statm: 22535 22118 65 8 0 22207 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 90140

[startup+6.26135 s]
/proc/loadavg: 0.13 0.62 1.24 3/72 1274
/proc/meminfo: memFree=1591336/2055920 swapFree=4192812/4192956
[pid=1236] ppid=1233 vsize=120632 CPUtime=6.24
/proc/1236/stat : 1236 (VALCSP) R 1233 1236 1050 0 -1 4194304 29759 0 0 0 612 12 0 0 25 0 1 0 163458010 123527168 29737 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530962 0 0 4096 0 0 0 0 17 1 0 0
/proc/1236/statm: 30158 29737 65 8 0 29830 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 120632

[startup+12.7225 s]
/proc/loadavg: 0.28 0.64 1.24 3/72 1274
/proc/meminfo: memFree=1397104/2055920 swapFree=4192812/4192956
[pid=1236] ppid=1233 vsize=180560 CPUtime=12.7
/proc/1236/stat : 1236 (VALCSP) R 1233 1236 1050 0 -1 4194304 44732 0 0 0 1251 19 0 0 25 0 1 0 163458010 184893440 44710 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530945 0 0 4096 0 0 0 0 17 1 0 0
/proc/1236/statm: 45140 44710 65 8 0 44812 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 180560

[startup+25.5337 s]
/proc/loadavg: 0.66 0.71 1.26 3/73 1281
/proc/meminfo: memFree=1387944/2055920 swapFree=4192812/4192956
[pid=1236] ppid=1233 vsize=311768 CPUtime=25.47
/proc/1236/stat : 1236 (VALCSP) R 1233 1236 1050 0 -1 4194304 77534 0 0 0 2515 32 0 0 25 0 1 0 163458010 319250432 77512 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530307 0 0 4096 0 0 0 0 17 0 0 0
/proc/1236/statm: 77942 77512 65 8 0 77614 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 311768

[startup+51.1652 s]
/proc/loadavg: 1.11 0.81 1.28 3/74 1282
/proc/meminfo: memFree=1044000/2055920 swapFree=4192812/4192956
[pid=1236] ppid=1233 vsize=593720 CPUtime=50.9
/proc/1236/stat : 1236 (VALCSP) R 1233 1236 1050 0 -1 4194304 148044 0 0 0 5031 59 0 0 25 0 1 0 163458010 607969280 148022 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530220 0 0 4096 0 0 0 0 17 0 0 0
/proc/1236/statm: 148430 148022 65 8 0 148102 0
Current children cumulated CPU time (s) 50.9
Current children cumulated vsize (KiB) 593720



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+80.6894 s]
/proc/loadavg: 1.46 0.92 1.30 3/74 1282
/proc/meminfo: memFree=710304/2055920 swapFree=4192812/4192956
[pid=1236] ppid=1233 vsize=922012 CPUtime=80.17
/proc/1236/stat : 1236 (VALCSP) R 1233 1236 1050 0 -1 4194304 230118 0 0 0 7926 91 0 0 25 0 1 0 163458010 944140288 230096 18446744073709551615 134512640 134548440 4294956736 18446744073709551615 134530955 0 0 4096 0 0 0 0 17 0 0 0
/proc/1236/statm: 230503 230096 65 8 0 230175 0
Current children cumulated CPU time (s) 80.17
Current children cumulated vsize (KiB) 922012

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 80.8284
CPU time (s): 80.3218
CPU user time (s): 79.2699
CPU system time (s): 1.05184
CPU usage (%): 99.3732
Max. virtual memory (cumulated for all children) (KiB): 922012

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 79.2699
system time used= 1.05184
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 230118
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= 6
involuntary context switches= 1507

runsolver used 0.069989 s user time and 0.228965 s system time

The end



Launcher Data (download as text)




Begin job on node61 on Sun Jan  7 06:16:38 UTC 2007


IDJOB= 202125
IDBENCH= 3814
FILE ID= node61/202125-1168150589

PBS_JOBID= 3478440

Free space on /tmp= 66516 MiB

BENCH NAME= HOME/pub/bench/CPAI06/fapp/fapp21-25/fapp24/fapp24-2000-9.xml
COMMAND LINE= /tmp/evaluation/202125-1168150589/VALCSP /tmp/evaluation/202125-1168150589/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node61/watcher-202125-1168150589 -o ROOT/results/node61/solver-202125-1168150589 -C 1800 -M 900  /tmp/evaluation/202125-1168150589/VALCSP /tmp/evaluation/202125-1168150589/unknown.xml

META MD5SUM SOLVER= 6fc756be3a7e45a17a81a19ce431bc48
MD5SUM BENCH=  99b4a6f18c5a7267e849490799459a8e

RANDOM SEED= 833819656

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		: 3000.259
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		: 3000.259
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:       1753264 kB
Buffers:         41064 kB
Cached:         178712 kB
SwapCached:          0 kB
Active:         127116 kB
Inactive:       112724 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1753264 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3780 kB
Writeback:           0 kB
Mapped:          30252 kB
Slab:            48624 kB
Committed_AS:  3355104 kB
PageTables:       1588 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= 66509 MiB



End job on node61 on Sun Jan  7 06:18:03 UTC 2007