Trace number 3426930

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 0.574912 0.574568

General information on the benchmark

Namerandom/medium/
unif-k7-r89-v50-c4450-S864690872-081.SATISFIABLE.cnf
MD5SUM6689be7bde9914194ce4bfa20183e3c5
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.020996
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 

0.49/0.57	c 0 clauses are redundant and removed
0.49/0.57	c 0 vars are fixed and 0 clauses are removed after unit propagation
0.49/0.57	c 0 vars are fixed and 0 clauses are removed after lookahead
0.49/0.57	c initial seed is 1690738975
0.49/0.57	c try=1 flip j=33079 walk=23106 seed 1690738992
0.49/0.57	c A solution is found
0.49/0.57	s SATISFIABLE
0.49/0.57	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 
0.49/0.57	v 0 
0.49/0.57	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-3426930-1306781770/watcher-3426930-1306781770 -o /tmp/evaluation-result-3426930-1306781770/solver-3426930-1306781770 -C 5000 -W 5100 -M 15500 sattime2011 HOME/instance-3426930-1306781770.cnf 1690735518 

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: 1.84 2.00 1.99 3/457 15460
/proc/meminfo: memFree=9219972/32951124 swapFree=60688864/67111528
[pid=15460] ppid=15458 vsize=1186240 CPUtime=0 cores=1,3,5,7
/proc/15460/stat : 15460 (sattime2011) R 15458 15460 14575 0 -1 4202496 418 0 0 0 0 0 0 0 20 0 1 0 789775139 1214709760 363 33554432000 4194304 4230460 140733761070320 18446744073709551615 4207656 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/15460/statm: 296560 363 103 9 0 293717 0

[startup+0.0235301 s]
/proc/loadavg: 1.84 2.00 1.99 3/457 15460
/proc/meminfo: memFree=9219972/32951124 swapFree=60688864/67111528
[pid=15460] ppid=15458 vsize=1186240 CPUtime=0.02 cores=1,3,5,7
/proc/15460/stat : 15460 (sattime2011) R 15458 15460 14575 0 -1 4202496 418 0 0 0 2 0 0 0 20 0 1 0 789775139 1214709760 363 33554432000 4194304 4230460 140733761070320 18446744073709551615 4207750 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/15460/statm: 296560 363 103 9 0 293717 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1186240

[startup+0.100515 s]
/proc/loadavg: 1.84 2.00 1.99 3/457 15460
/proc/meminfo: memFree=9219972/32951124 swapFree=60688864/67111528
[pid=15460] ppid=15458 vsize=1186240 CPUtime=0.09 cores=1,3,5,7
/proc/15460/stat : 15460 (sattime2011) R 15458 15460 14575 0 -1 4202496 418 0 0 0 9 0 0 0 20 0 1 0 789775139 1214709760 363 33554432000 4194304 4230460 140733761070320 18446744073709551615 4207748 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/15460/statm: 296560 363 103 9 0 293717 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1186240

[startup+0.300488 s]
/proc/loadavg: 1.84 2.00 1.99 3/457 15460
/proc/meminfo: memFree=9219972/32951124 swapFree=60688864/67111528
[pid=15460] ppid=15458 vsize=1186240 CPUtime=0.29 cores=1,3,5,7
/proc/15460/stat : 15460 (sattime2011) R 15458 15460 14575 0 -1 4202496 418 0 0 0 29 0 0 0 21 0 1 0 789775139 1214709760 363 33554432000 4194304 4230460 140733761070320 18446744073709551615 4207928 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/15460/statm: 296560 363 103 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+0.500454 s]
/proc/loadavg: 1.84 2.00 1.99 3/457 15460
/proc/meminfo: memFree=9219972/32951124 swapFree=60688864/67111528
[pid=15460] ppid=15458 vsize=1186376 CPUtime=0.49 cores=1,3,5,7
/proc/15460/stat : 15460 (sattime2011) R 15458 15460 14575 0 -1 4202496 554 0 0 0 49 0 0 0 21 0 1 0 789775139 1214849024 498 33554432000 4194304 4230460 140733761070320 18446744073709551615 4219586 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/15460/statm: 296594 498 117 9 0 293751 0
Current children cumulated CPU time (s) 0.49
Current children cumulated vsize (KiB) 1186376

Child status: 10
Real time (s): 0.574568
CPU time (s): 0.574912
CPU user time (s): 0.571913
CPU system time (s): 0.002999
CPU usage (%): 100.06
Max. virtual memory (cumulated for all children) (KiB): 1186376

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.571913
system time used= 0.002999
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= 1

runsolver used 0.005999 second user time and 0.011998 second system time

The end

Launcher Data 

Begin job on node132 at 2011-05-30 20:56:10
IDJOB=3426930
IDBENCH=82902
IDSOLVER=1924
FILE ID=node132/3426930-1306781770
RUNJOBID= node132-1306781770-15442
PBS_JOBID= 13474992
Free space on /tmp= 56756 MiB

SOLVER NAME= sattime2011 2011-03-02
BENCH NAME= SAT11/random/medium/unif-k7-r89-v50-c4450-S864690872-081.SATISFIABLE.cnf
COMMAND LINE= sattime2011 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3426930-1306781770/watcher-3426930-1306781770 -o /tmp/evaluation-result-3426930-1306781770/solver-3426930-1306781770 -C 5000 -W 5100 -M 15500  sattime2011 HOME/instance-3426930-1306781770.cnf 1690735518

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

MD5SUM BENCH= 6689be7bde9914194ce4bfa20183e3c5
RANDOM SEED=1690735518

node132.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		: 2666.833
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		: 2666.833
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	: 5332.74
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		: 2666.833
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	: 5332.76
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		: 2666.833
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		: 2666.833
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	: 5332.77
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		: 2666.833
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	: 5332.67
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		: 2666.833
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	: 5332.82
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		: 2666.833
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:       9220408 kB
Buffers:        253540 kB
Cached:       19733552 kB
SwapCached:      14980 kB
Active:       17969396 kB
Inactive:      5075584 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:       9220408 kB
SwapTotal:    67111528 kB
SwapFree:     60688864 kB
Dirty:           15560 kB
Writeback:           8 kB
AnonPages:     3050080 kB
Mapped:          18324 kB
Slab:           570220 kB
PageTables:      49964 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 109202088 kB
VmallocTotal: 34359738367 kB
VmallocUsed:     33868 kB
VmallocChunk: 34359703231 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 56740 MiB
End job on node132 at 2011-05-30 20:56:10