Trace number 3266578

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
ttsth 5-4UNSAT 1.39779 0.961474

General information on the benchmark

NameSAT02/handmade/zhang-lintao/
xor-chain/x1_40.shuffled.cnf
MD5SUM15f5068fb216bf26d5385140ce74faaf
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.000999
Satisfiable
(Un)Satisfiability was proved
Number of variables118
Number of clauses314
Sum of the clauses size940
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22
Number of clauses of size 3312
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c Command: HOME/ttsth-5-4 -num-threads 4 HOME/instance-3266578-1304105580.cnf 
0.00/0.00	c Using SATTIMEOUT of 4800
0.00/0.00	c Using SATRAM of 15500
0.00/0.00	c Size of subset node = 32
0.00/0.00	c Variables = 118
0.00/0.00	c Clauses = 314
0.00/0.00	c Literals = 940
0.00/0.00	c Reduced size:
0.00/0.00	c Variables = 118
0.00/0.00	c Clauses = 314
0.00/0.00	c Literals = 940
0.00/0.00	c a2
0.00/0.00	c a1
0.79/0.80	c Independent sub-problems = 1
0.79/0.80	c Sub-problem with 118 variables and 314 clauses
0.79/0.80	c using permutation method 3
0.79/0.80	c Ordering finished 0.800 seconds
0.79/0.80	c mapped 0.800 seconds
0.79/0.80	c permuted 0.800 seconds
0.79/0.80	c about to sort
0.79/0.80	c sorted
0.79/0.80	c clauses now 314
0.79/0.80	c init finished 0.800 seconds
0.79/0.80	c tree built 0.800 seconds
0.79/0.80	c 
0.79/0.80	c PA progress                      | CPU progress Partial assignments | improvements                 ucps  CPU time       PA/sec  nodes
0.79/0.80	c ---------------------------------|----------------------------------|--------------------------------------------------------------------
0.79/0.80	c ................................ | ..........                    |                                  0.8         0.0             
0.79/0.80	c ................................ | ..........                  1 |                                  0.8         1.2             
0.79/0.80	c ................................ | ..........                  2 |                                  0.8         2.5             
0.79/0.80	c ................................ | ..........                  3 |                                  0.8         3.8             
0.79/0.80	c ................................ | ..........                  4 |                                  0.8         5.0             
0.79/0.80	c ................................ | ..........                  5 |                                  0.8         6.2             
0.79/0.81	c ................................ | ..........               1000 | 180          64                  0.8      1234.6        19608
1.15/0.95	c **.............................. | ..........              44243 | 13313        146                 1.4     31829.5       560352
1.15/0.95	c **.............................. | ..........              44244 | 13313        146                 1.4     31830.2       560472
1.15/0.95	c ********........................ | ..........              44272 | 13324        146                 1.4     31850.4       560722
1.15/0.95	c ********........................ | ..........              44273 | 13324        146                 1.4     31851.1       560738
1.15/0.95	c ********........................ | ..........              44274 | 13324        146                 1.4     31851.8       560749
1.15/0.95	c **********...................... | ..........              44275 | 13325        146                 1.4     31852.5       560762
1.15/0.95	c Thread 2 result 0
1.15/0.95	c Thread 2 found (nil)
1.15/0.95	c ****************................ | ..........              44276 | 13326        146                 1.4     31853.2       560790
1.15/0.95	c Thread 1 result 0
1.15/0.95	c Thread 0 result 0
1.15/0.96	c Partial assignments = 44277, improvements = 13326  ucps = 146 PA/sec = 31853.96, subset nodes = 560790
1.15/0.96	s UNSATISFIABLE
1.15/0.96	c CPU time = 1.39 seconds
1.15/0.96	c Elapsed time = 1 seconds

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-3266578-1304105580/watcher-3266578-1304105580 -o /tmp/evaluation-result-3266578-1304105580/solver-3266578-1304105580 -C 4800 -W 1300 -M 15500 HOME/ttsth-5-4 -num-threads 4 HOME/instance-3266578-1304105580.cnf 

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

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 4800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 4830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1300 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: 6.93 7.86 7.96 2/176 3030
/proc/meminfo: memFree=30916932/32951124 swapFree=67105204/67111528
[pid=3028] ppid=3025 vsize=8708 CPUtime=0 cores=1,3,5,7
/proc/3028/stat : 3028 (ttsth-5-4) R 3025 3028 2468 0 -1 4202496 279 0 0 0 0 0 0 0 18 0 1 0 502973920 8916992 222 33554432000 4194304 4338100 140735230228112 18446744073709551615 4245888 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/3028/statm: 2177 222 163 36 0 82 0

[startup+0.08189 s]
/proc/loadavg: 6.93 7.86 7.96 2/176 3030
/proc/meminfo: memFree=30916932/32951124 swapFree=67105204/67111528
[pid=3028] ppid=3025 vsize=8708 CPUtime=0.08 cores=1,3,5,7
/proc/3028/stat : 3028 (ttsth-5-4) R 3025 3028 2468 0 -1 4202496 279 0 0 0 8 0 0 0 18 0 1 0 502973920 8916992 222 33554432000 4194304 4338100 140735230228112 18446744073709551615 4245865 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/3028/statm: 2177 222 163 36 0 82 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 8708

[startup+0.100883 s]
/proc/loadavg: 6.93 7.86 7.96 2/176 3030
/proc/meminfo: memFree=30916932/32951124 swapFree=67105204/67111528
[pid=3028] ppid=3025 vsize=8708 CPUtime=0.09 cores=1,3,5,7
/proc/3028/stat : 3028 (ttsth-5-4) R 3025 3028 2468 0 -1 4202496 279 0 0 0 9 0 0 0 18 0 1 0 502973920 8916992 222 33554432000 4194304 4338100 140735230228112 18446744073709551615 220815885426 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/3028/statm: 2177 222 163 36 0 82 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8708

[startup+0.300848 s]
/proc/loadavg: 6.93 7.86 7.96 2/176 3030
/proc/meminfo: memFree=30916932/32951124 swapFree=67105204/67111528
[pid=3028] ppid=3025 vsize=8708 CPUtime=0.29 cores=1,3,5,7
/proc/3028/stat : 3028 (ttsth-5-4) R 3025 3028 2468 0 -1 4202496 290 0 0 0 29 0 0 0 18 0 1 0 502973920 8916992 233 33554432000 4194304 4338100 140735230228112 18446744073709551615 220815895940 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/3028/statm: 2177 233 173 36 0 82 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8708

[startup+0.700775 s]
/proc/loadavg: 6.93 7.86 7.96 2/176 3030
/proc/meminfo: memFree=30916932/32951124 swapFree=67105204/67111528
[pid=3028] ppid=3025 vsize=8708 CPUtime=0.69 cores=1,3,5,7
/proc/3028/stat : 3028 (ttsth-5-4) R 3025 3028 2468 0 -1 4202496 292 0 0 0 69 0 0 0 18 0 1 0 502973920 8916992 235 33554432000 4194304 4338100 140735230228112 18446744073709551615 220815901417 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/3028/statm: 2177 235 175 36 0 82 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 8708

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

[startup+0.900703 s]
/proc/loadavg: 6.93 7.86 7.96 2/176 3030
/proc/meminfo: memFree=30916932/32951124 swapFree=67105204/67111528
[pid=3028] ppid=3025 vsize=194720 CPUtime=1.15 cores=1,3,5,7
/proc/3028/stat : 3028 (ttsth-5-4) S 3025 3028 2468 0 -1 4202496 3432 0 0 0 115 0 0 0 19 0 5 0 502973920 199393280 3375 33554432000 4194304 4338100 140735230228112 18446744073709551615 220828039141 0 0 4096 0 18446744073709551615 0 0 17 1 0 0 0
/proc/3028/statm: 48680 3377 196 36 0 46585 0
Current children cumulated CPU time (s) 1.15
Current children cumulated vsize (KiB) 194720

Child status: 20
Real time (s): 0.961474
CPU time (s): 1.39779
CPU user time (s): 1.37479
CPU system time (s): 0.022996
CPU usage (%): 145.38
Max. virtual memory (cumulated for all children) (KiB): 194720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.37479
system time used= 0.022996
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5224
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= 647
involuntary context switches= 13

runsolver used 0.003999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node147 at 2011-04-29 21:33:00
IDJOB=3266578
IDBENCH=87817
IDSOLVER=1654
FILE ID=node147/3266578-1304105580
RUNJOBID= node147-1304105580-3012
PBS_JOBID= 13170622
Free space on /tmp= 72660 MiB

SOLVER NAME= ttsth 5-4
BENCH NAME= SAT02/handmade/zhang-lintao/xor-chain/x1_40.shuffled.cnf
COMMAND LINE= DIR/ttsth-5-4 -num-threads NBCORE BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3266578-1304105580/watcher-3266578-1304105580 -o /tmp/evaluation-result-3266578-1304105580/solver-3266578-1304105580 -C 4800 -W 1300 -M 15500  HOME/ttsth-5-4 -num-threads 4 HOME/instance-3266578-1304105580.cnf

TIME LIMIT= 4800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 15f5068fb216bf26d5385140ce74faaf
RANDOM SEED=185487937

node147.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		: 2666.836
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		: 2666.836
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		: 2666.836
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	: 5332.82
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		: 2666.836
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		: 2666.836
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	: 5332.82
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		: 2666.836
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	: 5332.76
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		: 2666.836
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		: 2666.836
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:      30917088 kB
Buffers:        282800 kB
Cached:        1365400 kB
SwapCached:       3064 kB
Active:         136864 kB
Inactive:      1572672 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      30917088 kB
SwapTotal:    67111528 kB
SwapFree:     67105204 kB
Dirty:              96 kB
Writeback:           4 kB
AnonPages:       59208 kB
Mapped:          14400 kB
Slab:           260840 kB
PageTables:       4740 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   183628 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= 72656 MiB
End job on node147 at 2011-04-29 21:33:01