Trace number 3263953

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
RestartSAT B95UNSAT 3.52546 3.52695

General information on the benchmark

NameSAT03/handmade/bevan/cnf/
marg3x3add8.shuffled-as.sat03-1449.cnf
MD5SUMb91fa4fe3fb0fdf9c902d36266504764
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.000999
Satisfiable
(Un)Satisfiability was proved
Number of variables41
Number of clauses224
Sum of the clauses size1056
Maximum clause length5
Minimum clause length4
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 464
Number of clauses of size 5160
Number of clauses of size over 50

Solver Data 

3.49/3.52	c WARNING: for repeatability, setting FPU to use double precision
3.49/3.52	s UNSATISFIABLE

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-3263953-1303568270/watcher-3263953-1303568270 -o /tmp/evaluation-result-3263953-1303568270/solver-3263953-1303568270 -C 2400 -W 1300 -M 7680 HOME/RestartSAT -rfirst=1 -var-decay=0.95 HOME/instance-3263953-1303568270.cnf 

running on 2 cores: 1,3

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 2400 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 2430 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 7864320 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 7915520 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.39 4.26 5.32 3/179 19210
/proc/meminfo: memFree=18509084/32951124 swapFree=67111528/67111528
[pid=19210] ppid=19208 vsize=14756 CPUtime=0 cores=1,3
/proc/19210/stat : 19210 (RestartSAT) R 19208 19210 19170 0 -1 4202496 359 0 0 0 0 0 0 0 22 0 1 0 468425557 15110144 297 33554432000 4194304 4291949 140737105474256 18446744073709551615 4255843 0 0 4096 8388610 0 0 0 17 1 0 0 0
/proc/19210/statm: 3689 297 247 24 0 323 0

[startup+0.08997 s]
/proc/loadavg: 0.39 4.26 5.32 3/179 19210
/proc/meminfo: memFree=18509084/32951124 swapFree=67111528/67111528
[pid=19210] ppid=19208 vsize=14756 CPUtime=0.08 cores=1,3
/proc/19210/stat : 19210 (RestartSAT) R 19208 19210 19170 0 -1 4202496 368 0 0 0 8 0 0 0 22 0 1 0 468425557 15110144 305 33554432000 4194304 4291949 140737105474256 18446744073709551615 4256100 0 0 4096 8388610 0 0 0 17 1 0 0 0
/proc/19210/statm: 3689 305 247 24 0 323 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 14756

[startup+0.100971 s]
/proc/loadavg: 0.39 4.26 5.32 3/179 19210
/proc/meminfo: memFree=18509084/32951124 swapFree=67111528/67111528
[pid=19210] ppid=19208 vsize=14756 CPUtime=0.09 cores=1,3
/proc/19210/stat : 19210 (RestartSAT) R 19208 19210 19170 0 -1 4202496 368 0 0 0 9 0 0 0 22 0 1 0 468425557 15110144 305 33554432000 4194304 4291949 140737105474256 18446744073709551615 4261651 0 0 4096 8388610 0 0 0 17 1 0 0 0
/proc/19210/statm: 3689 305 247 24 0 323 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 14756

[startup+0.300936 s]
/proc/loadavg: 0.39 4.26 5.32 3/179 19210
/proc/meminfo: memFree=18509084/32951124 swapFree=67111528/67111528
[pid=19210] ppid=19208 vsize=14756 CPUtime=0.29 cores=1,3
/proc/19210/stat : 19210 (RestartSAT) R 19208 19210 19170 0 -1 4202496 378 0 0 0 29 0 0 0 23 0 1 0 468425557 15110144 315 33554432000 4194304 4291949 140737105474256 18446744073709551615 4255656 0 0 4096 8388610 0 0 0 17 1 0 0 0
/proc/19210/statm: 3689 315 248 24 0 323 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 14756

[startup+0.700866 s]
/proc/loadavg: 0.39 4.26 5.32 3/179 19210
/proc/meminfo: memFree=18509084/32951124 swapFree=67111528/67111528
[pid=19210] ppid=19208 vsize=14888 CPUtime=0.69 cores=1,3
/proc/19210/stat : 19210 (RestartSAT) R 19208 19210 19170 0 -1 4202496 388 0 0 0 69 0 0 0 25 0 1 0 468425557 15245312 325 33554432000 4194304 4291949 140737105474256 18446744073709551615 4255624 0 0 4096 8388610 0 0 0 17 1 0 0 0
/proc/19210/statm: 3722 325 248 24 0 356 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14888

[startup+1.50075 s]
/proc/loadavg: 0.52 4.23 5.30 3/180 19211
/proc/meminfo: memFree=18507956/32951124 swapFree=67111528/67111528
[pid=19210] ppid=19208 vsize=14888 CPUtime=1.49 cores=1,3
/proc/19210/stat : 19210 (RestartSAT) R 19208 19210 19170 0 -1 4202496 390 0 0 0 149 0 0 0 25 0 1 0 468425557 15245312 327 33554432000 4194304 4291949 140737105474256 18446744073709551615 4255673 0 0 4096 8388610 0 0 0 17 1 0 0 0
/proc/19210/statm: 3722 327 248 24 0 356 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 14888

[startup+3.10048 s]
/proc/loadavg: 0.52 4.23 5.30 3/180 19211
/proc/meminfo: memFree=18507460/32951124 swapFree=67111528/67111528
[pid=19210] ppid=19208 vsize=14888 CPUtime=3.09 cores=1,3
/proc/19210/stat : 19210 (RestartSAT) R 19208 19210 19170 0 -1 4202496 414 0 0 0 309 0 0 0 25 0 1 0 468425557 15245312 347 33554432000 4194304 4291949 140737105474256 18446744073709551615 4262090 0 0 4096 8388610 0 0 0 17 1 0 0 0
/proc/19210/statm: 3722 347 248 24 0 356 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 14888

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

[startup+3.5004 s]
/proc/loadavg: 0.52 4.23 5.30 3/180 19211
/proc/meminfo: memFree=18507512/32951124 swapFree=67111528/67111528
[pid=19210] ppid=19208 vsize=15052 CPUtime=3.49 cores=1,3
/proc/19210/stat : 19210 (RestartSAT) R 19208 19210 19170 0 -1 4202496 420 0 0 0 349 0 0 0 25 0 1 0 468425557 15413248 353 33554432000 4194304 4291949 140737105474256 18446744073709551615 4255843 0 0 4096 8388610 0 0 0 17 1 0 0 0
/proc/19210/statm: 3763 353 248 24 0 397 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 15052

Child status: 20
Real time (s): 3.52695
CPU time (s): 3.52546
CPU user time (s): 3.52546
CPU system time (s): 0
CPU usage (%): 99.9578
Max. virtual memory (cumulated for all children) (KiB): 15052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.52546
system time used= 0
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 425
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= 11

runsolver used 0.006998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node130 at 2011-04-23 16:17:51
IDJOB=3263953
IDBENCH=84072
IDSOLVER=1580
FILE ID=node130/3263953-1303568270
RUNJOBID= node130-1303568266-19190
PBS_JOBID= 13150296
Free space on /tmp= 71844 MiB

SOLVER NAME= RestartSAT B95
BENCH NAME= SAT03/handmade/bevan/cnf/marg3x3add8.shuffled-as.sat03-1449.cnf
COMMAND LINE= HOME/RestartSAT -rfirst=1 -var-decay=0.95 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3263953-1303568270/watcher-3263953-1303568270 -o /tmp/evaluation-result-3263953-1303568270/solver-3263953-1303568270 -C 2400 -W 1300 -M 7680  HOME/RestartSAT -rfirst=1 -var-decay=0.95 HOME/instance-3263953-1303568270.cnf

TIME LIMIT= 2400 seconds
MEMORY LIMIT= 7680 MiB
NBCORE= 2

MD5SUM BENCH= b91fa4fe3fb0fdf9c902d36266504764
RANDOM SEED=1249717105

node130.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		: 2666.838
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	: 5333.67
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		: 2666.838
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		: 2666.838
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		: 2666.838
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	: 5332.81
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		: 2666.838
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		: 2666.838
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		: 2666.838
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		: 2666.838
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	: 5332.81
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      18509224 kB
Buffers:       2090752 kB
Cached:       11741100 kB
SwapCached:          0 kB
Active:        6331004 kB
Inactive:      7566060 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      18509224 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             800 kB
Writeback:           0 kB
AnonPages:       64440 kB
Mapped:          14996 kB
Slab:           480104 kB
PageTables:       5156 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   211676 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= 71844 MiB
End job on node130 at 2011-04-23 16:17:54