Trace number 2699616

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
PB/CT 0.1Wrong UNSAT 0.111982 0.111683

General information on the benchmark

Name/PARTIAL-SMALLINT-LIN/wcsp/academics/
normalized-16wqueens_wcsp.wbo
MD5SUM0eca1cee1f66f0b91a7a0aa842de562c
Bench CategoryPARTIAL-SMALLINT-LIN (both soft and hard constraints, small integers, linear constraints)
Best result obtained on this benchmarkMOPT
Best cost obtained on this benchmark2
Best CPU time to get the best result obtained on this benchmark4.99424
Max-Satisfiable
Max-(Un)Satisfiability was proved
Best value of the cost
Optimality of the best cost was proved
Number of variables256
Total number of constraints4608
Number of soft constraints4592
Number of constraints which are clauses4592
Number of constraints which are cardinality constraints (but not clauses)16
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint16
Top cost 17
Min constraint cost 1
Max constraint cost 17
Sum of constraints costs 74992
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 17
Number of bits of the biggest sum of numbers5
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.04/0.09	c constraints 16/0 clauses 0/267 units 192
0.04/0.09	c vars 256
0.04/0.09	c Setting top cost 17
0.10/0.10	c 0.107983 5.84375 44 414
0.10/0.11	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2699616-1278533797/watcher-2699616-1278533797 -o /tmp/evaluation-result-2699616-1278533797/solver-2699616-1278533797 -C 1800 -W 2000 -M 3800 HOME/pbct --model HOME/instance-2699616-1278533797.wbo 

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): 3891200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 3942400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.08 0.02 0.01 4/178 21758
/proc/meminfo: memFree=28711268/32951124 swapFree=67111528/67111528
[pid=21758] ppid=21756 vsize=2136 CPUtime=0
/proc/21758/stat : 21758 (pbct) R 21756 21758 21667 0 -1 4202496 259 0 0 0 0 0 0 0 25 0 1 0 21592237 2187264 179 4089446400 134512640 136421960 4287435776 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/21758/statm: 534 179 144 467 0 65 0

[startup+0.0500449 s]
/proc/loadavg: 0.08 0.02 0.01 4/178 21758
/proc/meminfo: memFree=28711268/32951124 swapFree=67111528/67111528
[pid=21758] ppid=21756 vsize=2532 CPUtime=0.04
/proc/21758/stat : 21758 (pbct) R 21756 21758 21667 0 -1 4202496 342 0 0 0 4 0 0 0 25 0 1 0 21592237 2592768 262 4089446400 134512640 136421960 4287435776 18446744073709551615 134545321 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/21758/statm: 633 262 145 467 0 164 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2532

[startup+0.101038 s]
/proc/loadavg: 0.08 0.02 0.01 4/178 21758
/proc/meminfo: memFree=28711268/32951124 swapFree=67111528/67111528
[pid=21758] ppid=21756 vsize=4248 CPUtime=0.1
/proc/21758/stat : 21758 (pbct) R 21756 21758 21667 0 -1 4202496 756 0 0 0 10 0 0 0 25 0 1 0 21592237 4349952 676 4089446400 134512640 136421960 4287435776 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 5 0 0 0
/proc/21758/statm: 1062 680 194 467 0 593 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4248

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

Child status: 0
Real time (s): 0.111683
CPU time (s): 0.111982
CPU user time (s): 0.109983
CPU system time (s): 0.001999
CPU usage (%): 100.268
Max. virtual memory (cumulated for all children) (KiB): 4248

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.109983
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1228
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= 1
involuntary context switches= 2

runsolver used 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node139 at 2010-07-07 22:16:37
IDJOB=2699616
IDBENCH=79359
IDSOLVER=1208
FILE ID=node139/2699616-1278533797
PBS_JOBID= 11239200
Free space on /tmp= 73684 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB10/normalized-PB10/PARTIAL-SMALLINT-LIN/wcsp/academics/normalized-16wqueens_wcsp.wbo
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2699616-1278533797/watcher-2699616-1278533797 -o /tmp/evaluation-result-2699616-1278533797/solver-2699616-1278533797 -C 1800 -W 2000 -M 3800  HOME/pbct --model HOME/instance-2699616-1278533797.wbo

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 3800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 0eca1cee1f66f0b91a7a0aa842de562c
RANDOM SEED=1319439072

node139.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5333.68
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2666.841
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
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 rdtscp lm constant_tsc ida nonstop_tsc pni monitor ds_cpl vmx est tm2 cx16 xtpr popcnt lahf_lm
bogomips	: 5332.82
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      28711664 kB
Buffers:        140288 kB
Cached:        3880392 kB
SwapCached:          0 kB
Active:        1156904 kB
Inactive:      2935484 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      28711664 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            4772 kB
Writeback:           0 kB
AnonPages:       70896 kB
Mapped:          15096 kB
Slab:            84012 kB
PageTables:       4660 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   214896 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    296008 kB
VmallocChunk: 34359440975 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 73684 MiB
End job on node139 at 2010-07-07 22:16:38