Trace number 3265173

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
SApperloT 2011-03-23UNSAT 1.22681 1.22832

General information on the benchmark

NameSAT05/crafted/sabharwal05/counting/php/unsat/
easier/php-010-008.shuffled-as.sat05-1171.cnf
MD5SUM421970908f111607c59182237109849e
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.029994
Satisfiable
(Un)Satisfiability was proved
Number of variables80
Number of clauses370
Sum of the clauses size800
Maximum clause length8
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2360
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 510

Solver Data 

1.19/1.22	
1.19/1.22	s UNSATISFIABLE
1.19/1.22	c Reason for Unsat: Learned empty clause

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-3265173-1303578964/watcher-3265173-1303578964 -o /tmp/evaluation-result-3265173-1303578964/solver-3265173-1303578964 -C 2400 -W 1300 -M 7680 SApperloT HOME/instance-3265173-1303578964.cnf 

running on 2 cores: 5,7

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: 3.84 4.01 3.92 1/181 21983
/proc/meminfo: memFree=14509572/32951124 swapFree=67111528/67111528
[pid=21983] ppid=21981 vsize=12008 CPUtime=0 cores=5,7
/proc/21983/stat : 21983 (SApperloT) R 21981 21983 21784 0 -1 4202496 395 0 0 0 0 0 0 0 25 0 1 0 469494278 12296192 329 33554432000 4194304 4465733 140737065368736 18446744073709551615 4270788 0 0 4096 2 0 0 0 17 5 0 0 0
/proc/21983/statm: 3002 329 255 67 0 125 0

[startup+0.052967 s]
/proc/loadavg: 3.84 4.01 3.92 1/181 21983
/proc/meminfo: memFree=14509572/32951124 swapFree=67111528/67111528
[pid=21983] ppid=21981 vsize=13084 CPUtime=0.05 cores=5,7
/proc/21983/stat : 21983 (SApperloT) R 21981 21983 21784 0 -1 4202496 677 0 0 0 5 0 0 0 25 0 1 0 469494278 13398016 527 33554432000 4194304 4465733 140737065368736 18446744073709551615 4343207 0 0 4096 2 0 0 0 17 5 0 0 0
/proc/21983/statm: 3271 527 271 67 0 394 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 13084

[startup+0.100955 s]
/proc/loadavg: 3.84 4.01 3.92 1/181 21983
/proc/meminfo: memFree=14509572/32951124 swapFree=67111528/67111528
[pid=21983] ppid=21981 vsize=12992 CPUtime=0.09 cores=5,7
/proc/21983/stat : 21983 (SApperloT) R 21981 21983 21784 0 -1 4202496 859 0 0 0 9 0 0 0 25 0 1 0 469494278 13303808 550 33554432000 4194304 4465733 140737065368736 18446744073709551615 4255265 0 0 4096 2 0 0 0 17 5 0 0 0
/proc/21983/statm: 3248 550 280 67 0 371 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12992

[startup+0.300918 s]
/proc/loadavg: 3.84 4.01 3.92 1/181 21983
/proc/meminfo: memFree=14509572/32951124 swapFree=67111528/67111528
[pid=21983] ppid=21981 vsize=16468 CPUtime=0.29 cores=5,7
/proc/21983/stat : 21983 (SApperloT) R 21981 21983 21784 0 -1 4202496 1455 0 0 0 29 0 0 0 25 0 1 0 469494278 16863232 1056 33554432000 4194304 4465733 140737065368736 18446744073709551615 4358656 0 0 4096 2 0 0 0 17 5 0 0 0
/proc/21983/statm: 4117 1056 283 67 0 1240 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16468

[startup+0.700843 s]
/proc/loadavg: 3.84 4.01 3.92 1/181 21983
/proc/meminfo: memFree=14509572/32951124 swapFree=67111528/67111528
[pid=21983] ppid=21981 vsize=14884 CPUtime=0.69 cores=5,7
/proc/21983/stat : 21983 (SApperloT) R 21981 21983 21784 0 -1 4202496 1658 0 0 0 69 0 0 0 25 0 1 0 469494278 15241216 1022 33554432000 4194304 4465733 140737065368736 18446744073709551615 4296154 0 0 4096 2 0 0 0 17 5 0 0 0
/proc/21983/statm: 3721 1022 281 67 0 844 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 14884

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

[startup+1.10677 s]
/proc/loadavg: 3.84 4.01 3.92 5/191 22025
/proc/meminfo: memFree=14491168/32951124 swapFree=67111528/67111528
[pid=21983] ppid=21981 vsize=16212 CPUtime=1.1 cores=5,7
/proc/21983/stat : 21983 (SApperloT) R 21981 21983 21784 0 -1 4202496 2001 0 0 0 110 0 0 0 25 0 1 0 469494278 16601088 1303 33554432000 4194304 4465733 140737065368736 18446744073709551615 4270831 0 0 4096 2 0 0 0 17 5 0 0 0
/proc/21983/statm: 4053 1303 281 67 0 1176 0
Current children cumulated CPU time (s) 1.1
Current children cumulated vsize (KiB) 16212

[startup+1.20076 s]
/proc/loadavg: 3.84 4.01 3.92 5/191 22025
/proc/meminfo: memFree=14491168/32951124 swapFree=67111528/67111528
[pid=21983] ppid=21981 vsize=16212 CPUtime=1.19 cores=5,7
/proc/21983/stat : 21983 (SApperloT) R 21981 21983 21784 0 -1 4202496 2011 0 0 0 119 0 0 0 25 0 1 0 469494278 16601088 1308 33554432000 4194304 4465733 140737065368736 18446744073709551615 4271856 0 0 4096 2 0 0 0 17 5 0 0 0
/proc/21983/statm: 4053 1308 281 67 0 1176 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 16212

Child status: 20
Real time (s): 1.22832
CPU time (s): 1.22681
CPU user time (s): 1.22381
CPU system time (s): 0.002999
CPU usage (%): 99.8772
Max. virtual memory (cumulated for all children) (KiB): 16468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.22381
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= 2016
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= 7
involuntary context switches= 5

runsolver used 0.001999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node135 at 2011-04-23 19:16:04
IDJOB=3265173
IDBENCH=85447
IDSOLVER=1657
FILE ID=node135/3265173-1303578964
RUNJOBID= node135-1303577662-21805
PBS_JOBID= 13150331
Free space on /tmp= 71376 MiB

SOLVER NAME= SApperloT 2011-03-23
BENCH NAME= SAT05/crafted/sabharwal05/counting/php/unsat/easier/php-010-008.shuffled-as.sat05-1171.cnf
COMMAND LINE= SApperloT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3265173-1303578964/watcher-3265173-1303578964 -o /tmp/evaluation-result-3265173-1303578964/solver-3265173-1303578964 -C 2400 -W 1300 -M 7680  SApperloT HOME/instance-3265173-1303578964.cnf

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

MD5SUM BENCH= 421970908f111607c59182237109849e
RANDOM SEED=455911735

node135.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		: 2666.851
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	: 5333.70
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		: 2666.851
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		: 2666.851
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		: 2666.851
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	: 6640.14
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		: 2666.851
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	: 5332.78
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		: 2666.851
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		: 2666.851
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	: 5332.74
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		: 2666.851
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	: 5332.76
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      14509728 kB
Buffers:       2057952 kB
Cached:       15719960 kB
SwapCached:          0 kB
Active:        7308732 kB
Inactive:     10537240 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      14509728 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             416 kB
Writeback:           0 kB
AnonPages:       67744 kB
Mapped:          15104 kB
Slab:           530620 kB
PageTables:       4884 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   225312 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= 71376 MiB
End job on node135 at 2011-04-23 19:16:05