Trace number 3426783

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
sattime2011 2011-03-02SAT 0.695893 0.695826

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v50-c4450-S1430772875-039.SATISFIABLE.cnf
MD5SUMef1a26ad366fa6cdd721df0a7f8f760c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.035993
Satisfiable
(Un)Satisfiability was proved
Number of variables50
Number of clauses4450
Sum of the clauses size31150
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54450

Solver Data 

0.59/0.69	c 0 clauses are redundant and removed
0.59/0.69	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.59/0.69	c 0 vars are fixed and 0 clauses are removed after lookahead
0.59/0.69	c initial seed is 1751323291
0.59/0.69	c try=1 flip j=62536 walk=43198 seed 1751323308
0.59/0.69	c A solution is found
0.59/0.69	s SATISFIABLE
0.59/0.69	v 1 -2 3 4 5 6 7 -8 -9 -10 -11 12 13 -14 -15 16 -17 -18 19 20 -21 22 23 -24 -25 26 -27 28 -29 -30 31 -32 33 34 35 -36 -37 38 -39 -40 41 -42 -43 44 -45 46 47 48 -49 50 
0.59/0.69	v 0 
0.59/0.69	c Done (mycputime is 0 seconds)

Verifier Data 

OK

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.0 (svn: 961)

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-3426783-1306771765/watcher-3426783-1306771765 -o /tmp/evaluation-result-3426783-1306771765/solver-3426783-1306771765 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426783-1306771765.cnf 1751319834 

running on 4 cores: 1,3,5,7

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 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: 1.92 2.00 1.99 3/489 29928
/proc/meminfo: memFree=3481740/32951124 swapFree=63649292/67111528
[pid=29928] ppid=29926 vsize=1186240 CPUtime=0.01 cores=1,3,5,7
/proc/29928/stat : 29928 (sattime2011) R 29926 29928 29397 0 -1 4202496 418 0 0 0 1 0 0 0 22 0 1 0 788774996 1214709760 362 33554432000 4194304 4230460 140736157722800 18446744073709551615 4207850 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29928/statm: 296560 362 103 9 0 293717 0

[startup+0.095848 s]
/proc/loadavg: 1.92 2.00 1.99 3/489 29928
/proc/meminfo: memFree=3481740/32951124 swapFree=63649292/67111528
[pid=29928] ppid=29926 vsize=1186240 CPUtime=0.09 cores=1,3,5,7
/proc/29928/stat : 29928 (sattime2011) R 29926 29928 29397 0 -1 4202496 418 0 0 0 9 0 0 0 22 0 1 0 788774996 1214709760 362 33554432000 4194304 4230460 140736157722800 18446744073709551615 4207690 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29928/statm: 296560 362 103 9 0 293717 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1186240

[startup+0.100843 s]
/proc/loadavg: 1.92 2.00 1.99 3/489 29928
/proc/meminfo: memFree=3481740/32951124 swapFree=63649292/67111528
[pid=29928] ppid=29926 vsize=1186240 CPUtime=0.09 cores=1,3,5,7
/proc/29928/stat : 29928 (sattime2011) R 29926 29928 29397 0 -1 4202496 418 0 0 0 9 0 0 0 22 0 1 0 788774996 1214709760 362 33554432000 4194304 4230460 140736157722800 18446744073709551615 4207663 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29928/statm: 296560 362 103 9 0 293717 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1186240

[startup+0.300813 s]
/proc/loadavg: 1.92 2.00 1.99 3/489 29928
/proc/meminfo: memFree=3481740/32951124 swapFree=63649292/67111528
[pid=29928] ppid=29926 vsize=1186240 CPUtime=0.29 cores=1,3,5,7
/proc/29928/stat : 29928 (sattime2011) R 29926 29928 29397 0 -1 4202496 418 0 0 0 29 0 0 0 23 0 1 0 788774996 1214709760 362 33554432000 4194304 4230460 140736157722800 18446744073709551615 4207678 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29928/statm: 296560 362 103 9 0 293717 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1186240

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

[startup+0.500779 s]
/proc/loadavg: 1.92 2.00 1.99 3/489 29928
/proc/meminfo: memFree=3481740/32951124 swapFree=63649292/67111528
[pid=29928] ppid=29926 vsize=1186376 CPUtime=0.49 cores=1,3,5,7
/proc/29928/stat : 29928 (sattime2011) R 29926 29928 29397 0 -1 4202496 554 0 0 0 49 0 0 0 25 0 1 0 788774996 1214849024 497 33554432000 4194304 4230460 140736157722800 18446744073709551615 4220853 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29928/statm: 296594 497 117 9 0 293751 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 1186376

[startup+0.600762 s]
/proc/loadavg: 1.92 2.00 1.99 3/489 29928
/proc/meminfo: memFree=3481740/32951124 swapFree=63649292/67111528
[pid=29928] ppid=29926 vsize=1186376 CPUtime=0.59 cores=1,3,5,7
/proc/29928/stat : 29928 (sattime2011) R 29926 29928 29397 0 -1 4202496 554 0 0 0 59 0 0 0 25 0 1 0 788774996 1214849024 497 33554432000 4194304 4230460 140736157722800 18446744073709551615 4220442 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29928/statm: 296594 497 117 9 0 293751 0
Current children cumulated CPU time (s) 0.59
Current children cumulated vsize (KiB) 1186376

Child status: 10
Real time (s): 0.695826
CPU time (s): 0.695893
CPU user time (s): 0.693894
CPU system time (s): 0.001999
CPU usage (%): 100.01
Max. virtual memory (cumulated for all children) (KiB): 1186376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.693894
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= 558
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= 2
involuntary context switches= 3

runsolver used 0.005999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node130 at 2011-05-30 18:09:25
IDJOB=3426783
IDBENCH=82755
IDSOLVER=1924
FILE ID=node130/3426783-1306771765
RUNJOBID= node130-1306761759-29416
PBS_JOBID= 13474993
Free space on /tmp= 55384 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k7-r89-v50-c4450-S1430772875-039.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426783-1306771765/watcher-3426783-1306771765 -o /tmp/evaluation-result-3426783-1306771765/solver-3426783-1306771765 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426783-1306771765.cnf 1751319834

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= ef1a26ad366fa6cdd721df0a7f8f760c
RANDOM SEED=1751319834

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:       3482020 kB
Buffers:        357592 kB
Cached:       23546780 kB
SwapCached:      10120 kB
Active:       20699608 kB
Inactive:      7990916 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       3482020 kB
SwapTotal:    67111528 kB
SwapFree:     63649292 kB
Dirty:            7792 kB
Writeback:          20 kB
AnonPages:     4784244 kB
Mapped:          30732 kB
Slab:           657132 kB
PageTables:      54200 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 146275396 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= 55376 MiB
End job on node130 at 2011-05-30 18:09:26