Trace number 1048812

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
casper zaoUNSAT 0.297954 0.312622

DiagnosticValue
CHECKS134508

General information on the benchmark

Namecsp/pseudo/ssa/
normalized-ssa-0432-003.xml
MD5SUM18df51220fcedd2c3ae9966afd39fcd2
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 benchmark0.297954
Satisfiable
(Un)Satisfiability was proved
Number of variables870
Number of constraints1458
Maximum constraint arity5
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1458
Global constraints used (with number of constraints)

Solver Data (download as text)

0.18/0.21	c [ This is CaSPERzao (C) mvc@di.fct.unl.pt ]
0.18/0.21	c Parsing = 1
0.18/0.21	c Building = 1
0.18/0.21	c [ NumberOfVariables = 870 ]
0.18/0.21	c [ NumberOfConstraints = 1458 ]
0.18/0.21	c [ SizeOfSearchSpace(log2) = 662 ]
0.18/0.21	c SymmetrySearch = 1
0.18/0.21	c [ Found 288 symmetries ]
0.18/0.21	c InitialPropagation = 1
0.18/0.21	c [ SizeOfSearchSpace(log2) = 662 ]
0.18/0.21	c InitialSAC = 0
0.28/0.31	s UNSATISFIABLE
0.28/0.31	d CHECKS 134508
0.28/0.31	c [ TotalFails = 0 ]
0.28/0.31	c [ NumberOfRestarts = 0 ]
0.28/0.31	c [ TotalTime = 0.22816 secs ]

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.5 (c) roussel@cril.univ-artois.fr

command line: /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1048812-1215044115/watcher-1048812-1215044115 -o /tmp/evaluation-result-1048812-1215044115/solver-1048812-1215044115 -C 1800 -W 2200 -M 900 --output-limit 1,15 HOME/casperzao HOME/instance-1048812-1215044115.xml 997051976 

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): 2200 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 1.91 4/74 9676
/proc/meminfo: memFree=1854848/2055920 swapFree=4180288/4192956
[pid=9676] ppid=9674 vsize=1056 CPUtime=0
/proc/9676/stat : 9676 (casperzao) R 9674 9676 9024 0 -1 4194304 40 0 0 0 0 0 0 0 19 0 1 0 410028850 1081344 26 996147200 134512640 135477443 4294956224 18446744073709551615 3810084 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/9676/statm: 264 26 20 235 0 3 0

[startup+0.0904641 s]
/proc/loadavg: 2.00 2.00 1.91 4/74 9676
/proc/meminfo: memFree=1854848/2055920 swapFree=4180288/4192956
[pid=9676] ppid=9674 vsize=99728 CPUtime=0.06
/proc/9676/stat : 9676 (casperzao) R 9674 9676 9024 0 -1 4194304 1243 0 0 0 5 1 0 0 18 0 1 0 410028850 102121472 743 996147200 134512640 135477443 4294956224 18446744073709551615 4240796 0 0 4096 0 0 0 0 17 1 0 0
/proc/9676/statm: 24932 743 421 235 0 23633 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 99728

[startup+0.102463 s]
/proc/loadavg: 2.00 2.00 1.91 4/74 9676
/proc/meminfo: memFree=1854848/2055920 swapFree=4180288/4192956
[pid=9676] ppid=9674 vsize=99732 CPUtime=0.07
/proc/9676/stat : 9676 (casperzao) R 9674 9676 9024 0 -1 4194304 1502 0 0 0 5 2 0 0 18 0 1 0 410028850 102125568 761 996147200 134512640 135477443 4294956224 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/9676/statm: 24933 761 421 235 0 23634 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 99732

[startup+0.302489 s]
/proc/loadavg: 2.00 2.00 1.91 4/74 9676
/proc/meminfo: memFree=1854848/2055920 swapFree=4180288/4192956
[pid=9676] ppid=9674 vsize=101252 CPUtime=0.28
/proc/9676/stat : 9676 (casperzao) R 9674 9676 9024 0 -1 4194304 2879 0 0 0 23 5 0 0 19 0 1 0 410028850 103682048 1222 996147200 134512640 135477443 4294956224 18446744073709551615 134880290 0 0 4096 0 0 0 0 17 1 0 0
/proc/9676/statm: 25313 1222 479 235 0 24014 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 101252

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

Child status: 0
Real time (s): 0.312622
CPU time (s): 0.297954
CPU user time (s): 0.245962
CPU system time (s): 0.051992
CPU usage (%): 95.3081
Max. virtual memory (cumulated for all children) (KiB): 101252

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.245962
system time used= 0.051992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2885
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= 18
involuntary context switches= 16

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node49 at 2008-07-03 02:15:15
IDJOB=1048812
IDBENCH=54517
IDSOLVER=361
FILE ID=node49/1048812-1215044115
PBS_JOBID= 7875077
Free space on /tmp= 66540 MiB

SOLVER NAME= casper zao
BENCH NAME= CPAI08/csp/pseudo/ssa/normalized-ssa-0432-003.xml
COMMAND LINE= HOME/casperzao BENCHNAME RANDOMSEED 
RUNSOLVER COMMAND LINE= /home/evaluation/evaluation/pub/bin/runsolver --timestamp -w /tmp/evaluation-result-1048812-1215044115/watcher-1048812-1215044115 -o /tmp/evaluation-result-1048812-1215044115/solver-1048812-1215044115 -C 1800 -W 2200 -M 900 --output-limit 1,15  HOME/casperzao HOME/instance-1048812-1215044115.xml 997051976 

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB

MD5SUM BENCH= 18df51220fcedd2c3ae9966afd39fcd2
RANDOM SEED=997051976

node49.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		: 3000.249
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		: 3000.249
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:       1855328 kB
Buffers:         18696 kB
Cached:         104080 kB
SwapCached:       6084 kB
Active:          62668 kB
Inactive:        78168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1855328 kB
SwapTotal:     4192956 kB
SwapFree:      4180288 kB
Dirty:            3144 kB
Writeback:           0 kB
Mapped:          24660 kB
Slab:            44896 kB
Committed_AS:   708216 kB
PageTables:       1812 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66536 MiB
End job on node49 at 2008-07-03 02:15:15