Trace number 3299463

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
claspmt 2.0-R4095UNSAT 0.378941 0.380176

General information on the benchmark

NameSAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/
grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
MD5SUM384c65902b197ca2c64d2ee8a3c64089
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.374942
Satisfiable
(Un)Satisfiability was proved
Number of variables62750
Number of clauses124752
Sum of the clauses size498502
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2250
Number of clauses of size 30
Number of clauses of size 4124500
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c clasp version 2.0.0-RC2
0.00/0.00	c Reading from ...105365/instance-3299463-1304105365.cnf
0.29/0.37	s UNSATISFIABLE
0.29/0.37	
0.29/0.37	c Models        : 0     
0.29/0.37	c Time          : 0.345s (Solving: 0.00s 1st Model: 0.00s Unsat: 0.00s)
0.29/0.37	c CPU Time      : 0.340s

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 935)

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-3299463-1304105365/watcher-3299463-1304105365 -o /tmp/evaluation-result-3299463-1304105365/solver-3299463-1304105365 -C 4800 -W 1300 -M 15500 HOME/claspmt -t4 -p HOME/sat11-port.txt --distribute=all,2 HOME/instance-3299463-1304105365.cnf 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 4800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 4830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 15872000 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 15923200 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 7.48 7.96 7.99 5/180 3114
/proc/meminfo: memFree=29387760/32950928 swapFree=67111352/67111528
[pid=3114] ppid=3112 vsize=28900 CPUtime=0 cores=0,2,4,6
/proc/3114/stat : 3114 (claspmt) R 3112 3114 1986 0 -1 4202496 1083 0 0 0 0 0 0 0 21 0 1 0 600767220 29593600 1012 33554432000 4194304 4964704 140734416456336 18446744073709551615 4700332 0 0 4096 18946 0 0 0 17 4 0 0 0
/proc/3114/statm: 7225 1020 375 189 0 2099 0

[startup+0.023254 s]
/proc/loadavg: 7.48 7.96 7.99 5/180 3114
/proc/meminfo: memFree=29387760/32950928 swapFree=67111352/67111528
[pid=3114] ppid=3112 vsize=34860 CPUtime=0.01 cores=0,2,4,6
/proc/3114/stat : 3114 (claspmt) R 3112 3114 1986 0 -1 4202496 4511 0 0 0 1 0 0 0 21 0 1 0 600767220 35696640 3860 33554432000 4194304 4964704 140734416456336 18446744073709551615 251367207621 0 0 4096 18946 0 0 0 17 4 0 0 0
/proc/3114/statm: 8715 3862 385 189 0 3589 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 34860

[startup+0.100237 s]
/proc/loadavg: 7.48 7.96 7.99 5/180 3114
/proc/meminfo: memFree=29387760/32950928 swapFree=67111352/67111528
[pid=3114] ppid=3112 vsize=48152 CPUtime=0.09 cores=0,2,4,6
/proc/3114/stat : 3114 (claspmt) R 3112 3114 1986 0 -1 4202496 8718 0 0 0 8 1 0 0 21 0 1 0 600767220 49307648 7072 33554432000 4194304 4964704 140734416456336 18446744073709551615 4615747 0 0 4096 18946 0 0 0 17 4 0 0 0
/proc/3114/statm: 12038 7072 398 189 0 6912 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 48152

[startup+0.300199 s]
/proc/loadavg: 7.48 7.96 7.99 5/180 3114
/proc/meminfo: memFree=29387760/32950928 swapFree=67111352/67111528
[pid=3114] ppid=3112 vsize=50020 CPUtime=0.29 cores=0,2,4,6
/proc/3114/stat : 3114 (claspmt) R 3112 3114 1986 0 -1 4202496 9231 0 0 0 28 1 0 0 22 0 1 0 600767220 51220480 7585 33554432000 4194304 4964704 140734416456336 18446744073709551615 4615020 0 0 4096 18946 0 0 0 17 4 0 0 0
/proc/3114/statm: 12505 7585 403 189 0 7379 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 50020

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

Child status: 20
Real time (s): 0.380176
CPU time (s): 0.378941
CPU user time (s): 0.362944
CPU system time (s): 0.015997
CPU usage (%): 99.6752
Max. virtual memory (cumulated for all children) (KiB): 50020

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.362944
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9243
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= 5
involuntary context switches= 1

runsolver used 0.000999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node113 at 2011-04-29 21:29:26
IDJOB=3299463
IDBENCH=85572
IDSOLVER=1683
FILE ID=node113/3299463-1304105365
RUNJOBID= node113-1304105365-3090
PBS_JOBID= 13170618
Free space on /tmp= 71164 MiB

SOLVER NAME= claspmt 2.0-R4095
BENCH NAME= SAT05/crafted/sabharwal05/pebbling/grid-pebbling/unsat/grid-pbl-0250.shuffled-as.sat05-1349.shuffled-as.sat05-1349.cnf
COMMAND LINE= HOME/claspmt -tNBCORE -p HOME/sat11-port.txt --distribute=all,2 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3299463-1304105365/watcher-3299463-1304105365 -o /tmp/evaluation-result-3299463-1304105365/solver-3299463-1304105365 -C 4800 -W 1300 -M 15500  HOME/claspmt -t4 -p HOME/sat11-port.txt --distribute=all,2 HOME/instance-3299463-1304105365.cnf

TIME LIMIT= 4800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 384c65902b197ca2c64d2ee8a3c64089
RANDOM SEED=1148641379

node113.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		: 2666.846
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	: 5333.69
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		: 2666.846
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	: 5332.76
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		: 2666.846
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	: 5332.74
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		: 2666.846
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	: 5332.75
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		: 2666.846
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	: 5332.74
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		: 2666.846
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	: 5332.75
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		: 2666.846
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	: 5332.83
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		: 2666.846
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32950928 kB
MemFree:      29388040 kB
Buffers:        714040 kB
Cached:        2260452 kB
SwapCached:         12 kB
Active:         157348 kB
Inactive:      2888148 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32950928 kB
LowFree:      29388040 kB
SwapTotal:    67111528 kB
SwapFree:     67111352 kB
Dirty:            5628 kB
Writeback:           0 kB
AnonPages:       70100 kB
Mapped:          15172 kB
Slab:           453180 kB
PageTables:       4496 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83586992 kB
Committed_AS:   228036 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= 71160 MiB
End job on node113 at 2011-04-29 21:29:26