Trace number 3170355

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 4.35134 4.35254

General information on the benchmark

Namerandom/medium/
unif-k3-r4.26-v250-c1065-S860541986-078.UNKNOWN.cnf
MD5SUM71604c5ae90cca76a60cbb9c7e772fe9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.268958
Satisfiable
(Un)Satisfiability was proved
Number of variables250
Number of clauses1065
Sum of the clauses size3195
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31065
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

4.30/4.35	c WARNING: for repeatability, setting FPU to use double precision
4.30/4.35	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-3170355-1302822672/watcher-3170355-1302822672 -o /tmp/evaluation-result-3170355-1302822672/solver-3170355-1302822672 -C 2400 -W 1300 -M 7680 HOME/RestartSAT -rfirst=1 -var-decay=0.95 HOME/instance-3170355-1302822672.cnf 

running on 2 cores: 0,2

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: 4.00 4.00 3.94 2/183 18264
/proc/meminfo: memFree=14647608/32951124 swapFree=67111528/67111528
[pid=18264] ppid=18262 vsize=14916 CPUtime=0 cores=0,2
/proc/18264/stat : 18264 (RestartSAT) R 18262 18264 17614 0 -1 4202496 391 0 0 0 0 0 0 0 25 0 1 0 374683441 15273984 325 33554432000 4194304 4291949 140735477392400 18446744073709551615 212039321112 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/18264/statm: 3729 325 247 24 0 363 0

[startup+0.013802 s]
/proc/loadavg: 4.00 4.00 3.94 2/183 18264
/proc/meminfo: memFree=14647608/32951124 swapFree=67111528/67111528
[pid=18264] ppid=18262 vsize=14916 CPUtime=0.01 cores=0,2
/proc/18264/stat : 18264 (RestartSAT) R 18262 18264 17614 0 -1 4202496 406 0 0 0 1 0 0 0 25 0 1 0 374683441 15273984 340 33554432000 4194304 4291949 140735477392400 18446744073709551615 4255590 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/18264/statm: 3729 340 247 24 0 363 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 14916

[startup+0.100857 s]
/proc/loadavg: 4.00 4.00 3.94 2/183 18264
/proc/meminfo: memFree=14647608/32951124 swapFree=67111528/67111528
[pid=18264] ppid=18262 vsize=15084 CPUtime=0.09 cores=0,2
/proc/18264/stat : 18264 (RestartSAT) R 18262 18264 17614 0 -1 4202496 456 0 0 0 9 0 0 0 25 0 1 0 374683441 15446016 385 33554432000 4194304 4291949 140735477392400 18446744073709551615 4255925 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/18264/statm: 3771 385 248 24 0 405 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 15084

[startup+0.300812 s]
/proc/loadavg: 4.00 4.00 3.94 2/183 18264
/proc/meminfo: memFree=14647608/32951124 swapFree=67111528/67111528
[pid=18264] ppid=18262 vsize=15084 CPUtime=0.29 cores=0,2
/proc/18264/stat : 18264 (RestartSAT) R 18262 18264 17614 0 -1 4202496 470 0 0 0 29 0 0 0 25 0 1 0 374683441 15446016 397 33554432000 4194304 4291949 140735477392400 18446744073709551615 4255658 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/18264/statm: 3771 397 248 24 0 405 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15084

[startup+0.70074 s]
/proc/loadavg: 4.00 4.00 3.94 2/183 18264
/proc/meminfo: memFree=14647608/32951124 swapFree=67111528/67111528
[pid=18264] ppid=18262 vsize=15296 CPUtime=0.69 cores=0,2
/proc/18264/stat : 18264 (RestartSAT) R 18262 18264 17614 0 -1 4202496 504 0 0 0 69 0 0 0 25 0 1 0 374683441 15663104 429 33554432000 4194304 4291949 140735477392400 18446744073709551615 4255847 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/18264/statm: 3824 429 248 24 0 458 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15296

[startup+1.5006 s]
/proc/loadavg: 4.00 4.00 3.94 5/190 18283
/proc/meminfo: memFree=14643424/32951124 swapFree=67111528/67111528
[pid=18264] ppid=18262 vsize=15468 CPUtime=1.49 cores=0,2
/proc/18264/stat : 18264 (RestartSAT) R 18262 18264 17614 0 -1 4202496 551 0 0 0 149 0 0 0 25 0 1 0 374683441 15839232 475 33554432000 4194304 4291949 140735477392400 18446744073709551615 4255698 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/18264/statm: 3867 475 248 24 0 501 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 15468

[startup+3.10032 s]
/proc/loadavg: 4.00 4.00 3.94 5/190 18283
/proc/meminfo: memFree=14641220/32951124 swapFree=67111528/67111528
[pid=18264] ppid=18262 vsize=15600 CPUtime=3.09 cores=0,2
/proc/18264/stat : 18264 (RestartSAT) R 18262 18264 17614 0 -1 4202496 591 0 0 0 309 0 0 0 25 0 1 0 374683441 15974400 511 33554432000 4194304 4291949 140735477392400 18446744073709551615 4255673 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/18264/statm: 3900 511 248 24 0 534 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 15600

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

[startup+3.90018 s]
/proc/loadavg: 4.00 4.00 3.94 5/190 18283
/proc/meminfo: memFree=14639856/32951124 swapFree=67111528/67111528
[pid=18264] ppid=18262 vsize=15756 CPUtime=3.89 cores=0,2
/proc/18264/stat : 18264 (RestartSAT) R 18262 18264 17614 0 -1 4202496 627 0 0 0 389 0 0 0 25 0 1 0 374683441 16134144 544 33554432000 4194304 4291949 140735477392400 18446744073709551615 4262388 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/18264/statm: 3939 544 248 24 0 573 0
Current children cumulated CPU time (s) 3.89
Current children cumulated vsize (KiB) 15756

[startup+4.3011 s]
/proc/loadavg: 4.00 4.00 3.94 5/190 18283
/proc/meminfo: memFree=14638980/32951124 swapFree=67111528/67111528
[pid=18264] ppid=18262 vsize=15756 CPUtime=4.3 cores=0,2
/proc/18264/stat : 18264 (RestartSAT) R 18262 18264 17614 0 -1 4202496 627 0 0 0 430 0 0 0 25 0 1 0 374683441 16134144 544 33554432000 4194304 4291949 140735477392400 18446744073709551615 4255935 0 0 4096 8388610 0 0 0 17 0 0 0 0
/proc/18264/statm: 3939 544 248 24 0 573 0
Current children cumulated CPU time (s) 4.3
Current children cumulated vsize (KiB) 15756

Child status: 20
Real time (s): 4.35254
CPU time (s): 4.35134
CPU user time (s): 4.35034
CPU system time (s): 0.000999
CPU usage (%): 99.9724
Max. virtual memory (cumulated for all children) (KiB): 15756

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.35034
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 633
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= 4
involuntary context switches= 15

runsolver used 0.004999 second user time and 0.021996 second system time

The end

Launcher Data 

Begin job on node146 at 2011-04-15 01:11:12
IDJOB=3170355
IDBENCH=82773
IDSOLVER=1580
FILE ID=node146/3170355-1302822672
RUNJOBID= node146-1302817462-17632
PBS_JOBID= 13006654
Free space on /tmp= 71476 MiB

SOLVER NAME= RestartSAT B95
BENCH NAME= SAT11/random/medium/unif-k3-r4.26-v250-c1065-S860541986-078.UNKNOWN.cnf
COMMAND LINE= HOME/RestartSAT -rfirst=1 -var-decay=0.95 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3170355-1302822672/watcher-3170355-1302822672 -o /tmp/evaluation-result-3170355-1302822672/solver-3170355-1302822672 -C 2400 -W 1300 -M 7680  HOME/RestartSAT -rfirst=1 -var-decay=0.95 HOME/instance-3170355-1302822672.cnf

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

MD5SUM BENCH= 71604c5ae90cca76a60cbb9c7e772fe9
RANDOM SEED=745656713

node146.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		: 2666.830
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	: 5333.66
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		: 2666.830
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	: 5332.75
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		: 2666.830
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		: 2666.830
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	: 5332.86
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		: 2666.830
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		: 2666.830
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		: 2666.830
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		: 2666.830
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	: 5332.75
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      14647888 kB
Buffers:        692624 kB
Cached:       17178884 kB
SwapCached:          0 kB
Active:        8641440 kB
Inactive:      9295780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      14647888 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             976 kB
Writeback:         100 kB
AnonPages:       65872 kB
Mapped:          15240 kB
Slab:           302624 kB
PageTables:       5268 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   208652 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= 71476 MiB
End job on node146 at 2011-04-15 01:11:16