Trace number 3293854

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
Lingeling 587UNSAT 1.87471 1.87471

General information on the benchmark

NameSAT-Race-2010-CNF/software-verification/
nec/hard-25-U-7061.cnf
MD5SUM23c04ef615431bf15ef9eafe9b944fb8
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.571912
Satisfiable
(Un)Satisfiability was proved
Number of variables541150
Number of clauses1645836
Sum of the clauses size4001876
Maximum clause length1576
Minimum clause length1
Number of clauses of size 1141
Number of clauses of size 21092306
Number of clauses of size 3543262
Number of clauses of size 44256
Number of clauses of size 51339
Number of clauses of size over 54532

Solver Data 

1.79/1.86	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-3293854-1303790042/watcher-3293854-1303790042 -o /tmp/evaluation-result-3293854-1303790042/solver-3293854-1303790042 -C 2400 -W 1300 -M 7680 lingeling HOME/instance-3293854-1303790042.cnf 

running on 2 cores: 4,6

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: 3.73 3.92 3.91 4/189 8148
/proc/meminfo: memFree=19419980/32951124 swapFree=67111464/67111528
[pid=8148] ppid=8146 vsize=11124 CPUtime=0 cores=4,6
/proc/8148/stat : 8148 (lingeling) R 8146 8148 6373 0 -1 4202496 1362 0 0 0 0 0 0 0 19 0 1 0 490602171 11390976 1305 33554432000 4194304 4409164 140733513764592 18446744073709551615 228244348672 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/8148/statm: 2781 1305 112 53 0 1204 0

[startup+0.095527 s]
/proc/loadavg: 3.73 3.92 3.91 4/189 8148
/proc/meminfo: memFree=19419980/32951124 swapFree=67111464/67111528
[pid=8148] ppid=8146 vsize=31820 CPUtime=0.08 cores=4,6
/proc/8148/stat : 8148 (lingeling) R 8146 8148 6373 0 -1 4202496 6551 0 0 0 8 0 0 0 19 0 1 0 490602171 32583680 6480 33554432000 4194304 4409164 140733513764592 18446744073709551615 228244348672 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/8148/statm: 7955 6480 113 53 0 6378 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 31820

[startup+0.100532 s]
/proc/loadavg: 3.73 3.92 3.91 4/189 8148
/proc/meminfo: memFree=19419980/32951124 swapFree=67111464/67111528
[pid=8148] ppid=8146 vsize=31820 CPUtime=0.09 cores=4,6
/proc/8148/stat : 8148 (lingeling) R 8146 8148 6373 0 -1 4202496 6551 0 0 0 9 0 0 0 19 0 1 0 490602171 32583680 6480 33554432000 4194304 4409164 140733513764592 18446744073709551615 228244348672 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/8148/statm: 7955 6480 113 53 0 6378 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 31820

[startup+0.300488 s]
/proc/loadavg: 3.73 3.92 3.91 4/189 8148
/proc/meminfo: memFree=19419980/32951124 swapFree=67111464/67111528
[pid=8148] ppid=8146 vsize=55084 CPUtime=0.29 cores=4,6
/proc/8148/stat : 8148 (lingeling) R 8146 8148 6373 0 -1 4202496 12376 0 0 0 28 1 0 0 20 0 1 0 490602171 56406016 12296 33554432000 4194304 4409164 140733513764592 18446744073709551615 228244348672 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/8148/statm: 13771 12296 113 53 0 12194 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 55084

[startup+0.70039 s]
/proc/loadavg: 3.73 3.92 3.91 4/189 8148
/proc/meminfo: memFree=19419980/32951124 swapFree=67111464/67111528
[pid=8148] ppid=8146 vsize=86060 CPUtime=0.69 cores=4,6
/proc/8148/stat : 8148 (lingeling) R 8146 8148 6373 0 -1 4202496 20120 0 0 0 66 3 0 0 20 0 1 0 490602171 88125440 20040 33554432000 4194304 4409164 140733513764592 18446744073709551615 228244348672 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/8148/statm: 21515 20040 113 53 0 19938 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 86060

[startup+1.50025 s]
/proc/loadavg: 3.73 3.92 3.91 5/190 8149
/proc/meminfo: memFree=19337024/32951124 swapFree=67111464/67111528
[pid=8148] ppid=8146 vsize=113720 CPUtime=1.49 cores=4,6
/proc/8148/stat : 8148 (lingeling) R 8146 8148 6373 0 -1 4202496 41750 0 0 0 144 5 0 0 23 0 1 0 490602171 116449280 26943 33554432000 4194304 4409164 140733513764592 18446744073709551615 4280047 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/8148/statm: 28430 26943 125 53 0 26853 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 113720

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

[startup+1.70025 s]
/proc/loadavg: 3.73 3.92 3.91 5/190 8149
/proc/meminfo: memFree=19337024/32951124 swapFree=67111464/67111528
[pid=8148] ppid=8146 vsize=113720 CPUtime=1.69 cores=4,6
/proc/8148/stat : 8148 (lingeling) R 8146 8148 6373 0 -1 4202496 41750 0 0 0 164 5 0 0 24 0 1 0 490602171 116449280 26943 33554432000 4194304 4409164 140733513764592 18446744073709551615 4278576 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/8148/statm: 28430 26943 125 53 0 26853 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 113720

[startup+1.80024 s]
/proc/loadavg: 3.73 3.92 3.91 5/190 8149
/proc/meminfo: memFree=19337024/32951124 swapFree=67111464/67111528
[pid=8148] ppid=8146 vsize=113720 CPUtime=1.79 cores=4,6
/proc/8148/stat : 8148 (lingeling) R 8146 8148 6373 0 -1 4202496 41754 0 0 0 174 5 0 0 25 0 1 0 490602171 116449280 26947 33554432000 4194304 4409164 140733513764592 18446744073709551615 4285884 0 0 4096 17506 0 0 0 17 4 0 0 0
/proc/8148/statm: 28430 26947 129 53 0 26853 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 113720

Child status: 20
Real time (s): 1.87471
CPU time (s): 1.87471
CPU user time (s): 1.81372
CPU system time (s): 0.06099
CPU usage (%): 100
Max. virtual memory (cumulated for all children) (KiB): 115244

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.81372
system time used= 0.06099
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 41758
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= 6

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node136 at 2011-04-26 05:54:02
IDJOB=3293854
IDBENCH=88185
IDSOLVER=1606
FILE ID=node136/3293854-1303790042
RUNJOBID= node136-1303790021-8084
PBS_JOBID= 13157229
Free space on /tmp= 72116 MiB

SOLVER NAME= Lingeling 587
BENCH NAME= SAT-Race-2010-CNF/software-verification/nec/hard-25-U-7061.cnf
COMMAND LINE= lingeling BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3293854-1303790042/watcher-3293854-1303790042 -o /tmp/evaluation-result-3293854-1303790042/solver-3293854-1303790042 -C 2400 -W 1300 -M 7680  lingeling HOME/instance-3293854-1303790042.cnf

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

MD5SUM BENCH= 23c04ef615431bf15ef9eafe9b944fb8
RANDOM SEED=1205623788

node136.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		: 2666.809
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	: 5333.61
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.76
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		: 2666.809
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		: 2666.809
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		: 2666.809
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		: 2666.809
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	: 5332.74
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      19420012 kB
Buffers:       1726320 kB
Cached:       10363156 kB
SwapCached:         60 kB
Active:        5861852 kB
Inactive:      7084972 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      19420012 kB
SwapTotal:    67111528 kB
SwapFree:     67111464 kB
Dirty:          350360 kB
Writeback:          32 kB
AnonPages:      856544 kB
Mapped:          15696 kB
Slab:           517868 kB
PageTables:       6812 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:  1043576 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= 72116 MiB
End job on node136 at 2011-04-26 05:54:04