Trace number 3266577

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
tts 5-4UNSAT 1.25181 1.25685

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/tts-5-4 HOME/instance-3266577-1303586890.cnf 
0.00/0.00	c Using SATTIMEOUT of 2400
0.00/0.00	c Using SATRAM of 7680
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
0.69/0.76	c Independent sub-problems = 1
0.69/0.76	c Sub-problem with 118 variables and 314 clauses
0.69/0.76	c using permutation method 3
0.69/0.76	c Ordering finished 0.750 seconds
0.69/0.76	c mapped 0.750 seconds
0.69/0.76	c permuted 0.750 seconds
0.69/0.76	c about to sort
0.69/0.76	c sorted
0.69/0.76	c clauses now 314
0.69/0.76	c init finished 0.750 seconds
0.69/0.76	c tree built 0.750 seconds
0.69/0.76	c 
0.69/0.76	c PA progress                      | CPU progress Partial assignments | improvements                 ucps  CPU time       PA/sec  nodes
0.69/0.76	c ---------------------------------|----------------------------------|--------------------------------------------------------------------
0.69/0.76	c ................................ | ..........                    |                                  0.8         0.0             
0.69/0.76	c ................................ | ..........                  1 |                                  0.8         1.3             
0.69/0.76	c ................................ | ..........                  2 |                                  0.8         2.7             
0.69/0.76	c ................................ | ..........                  3 |                                  0.8         4.0             
0.69/0.76	c ................................ | ..........                  4 |                                  0.8         5.3             
0.69/0.76	c ................................ | ..........                  5 |                                  0.8         6.7             
0.69/0.76	c ................................ | ..........               1000 | 104          64                  0.8      1333.3         4452
1.19/1.23	c **.............................. | ..........             166478 | 49904        128                 1.2    136457.4       556223
1.19/1.23	c **.............................. | ..........             166479 | 49904        128                 1.2    136458.2       556223
1.19/1.25	c ********........................ | ..........             174040 | 52384        128                 1.2    140354.8       580149
1.19/1.25	c ********........................ | ..........             174041 | 52384        128                 1.2    140355.6       580149
1.19/1.25	c ********........................ | ..........             174042 | 52384        128                 1.2    140356.5       580149
1.19/1.25	c ********........................ | ..........             174043 | 52384        128                 1.2    140357.3       580149
1.19/1.25	c **********...................... | ..........             174060 | 52392        128                 1.2    140371.0       580188
1.19/1.25	c **********...................... | ..........             174061 | 52392        128                 1.2    140371.8       580188
1.19/1.25	c ****************................ | ..........             174078 | 52400        128                 1.2    140385.5       580231
1.19/1.25	c ****************................ | ..........             174079 | 52400        128                 1.2    140386.3       580231
1.19/1.25	c ****************................ | ..........             174080 | 52400        128                 1.2    140387.1       580231
1.19/1.25	c ****************................ | ..........             174081 | 52400        128                 1.2    140387.9       580231
1.19/1.25	c ****************................ | ..........             174082 | 52400        128                 1.2    140388.7       580231
1.19/1.25	c ******************.............. | ..........             174603 | 52576        128                 1.2    140808.9       581812
1.19/1.25	c ******************.............. | ..........             174604 | 52576        128                 1.2    140809.7       581812
1.19/1.25	c ************************........ | ..........             175125 | 52752        128                 1.2    141229.8       583321
1.19/1.25	c ************************........ | ..........             175126 | 52752        128                 1.2    141230.6       583321
1.19/1.25	c ************************........ | ..........             175127 | 52752        128                 1.2    141231.5       583321
1.19/1.25	c ************************........ | ..........             175128 | 52752        128                 1.2    141232.3       583321
1.19/1.25	c **************************...... | ..........             175145 | 52760        128                 1.2    141246.0       583360
1.19/1.25	c **************************...... | ..........             175146 | 52760        128                 1.2    141246.8       583360
1.19/1.25	c Thread 0 result 0
1.19/1.25	c Thread 0 found (nil)
1.19/1.25	c Partial assignments = 175163, improvements = 52768  ucps = 128 PA/sec = 141260.48, subset nodes = 583402
1.19/1.25	s UNSATISFIABLE
1.19/1.25	c CPU time = 1.24 seconds
1.19/1.25	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-3266577-1303586890/watcher-3266577-1303586890 -o /tmp/evaluation-result-3266577-1303586890/solver-3266577-1303586890 -C 2400 -W 1300 -M 7680 HOME/tts-5-4 HOME/instance-3266577-1303586890.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: 0.92 1.35 2.28 7/188 2556
/proc/meminfo: memFree=16610380/32951124 swapFree=67111528/67111528
[pid=2556] ppid=2554 vsize=11800 CPUtime=0 cores=4,6
/proc/2556/stat : 2556 (runsolver) R 2554 2556 1921 0 -1 4202560 41 0 0 0 0 0 0 0 21 0 1 0 470289488 12083200 52 33554432000 4194304 5434984 140737415578464 18446744073709551615 4881607 0 2147483391 4096 24578 0 0 0 17 6 0 0 0
/proc/2556/statm: 2950 52 31 303 0 2644 0

[startup+0.00897806 s]
/proc/loadavg: 0.92 1.35 2.28 7/188 2556
/proc/meminfo: memFree=16610380/32951124 swapFree=67111528/67111528
[pid=2556] ppid=2554 vsize=6544 CPUtime=0 cores=4,6
/proc/2556/stat : 2556 (tts-5-4) R 2554 2556 1921 0 -1 4202496 255 0 0 0 0 0 0 0 21 0 1 0 470289488 6701056 200 33554432000 4194304 4337412 140735890286912 18446744073709551615 4245087 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2556/statm: 1636 200 146 35 0 77 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 6544

[startup+0.100985 s]
/proc/loadavg: 0.92 1.35 2.28 7/188 2556
/proc/meminfo: memFree=16610380/32951124 swapFree=67111528/67111528
[pid=2556] ppid=2554 vsize=6544 CPUtime=0.09 cores=4,6
/proc/2556/stat : 2556 (tts-5-4) R 2554 2556 1921 0 -1 4202496 255 0 0 0 9 0 0 0 21 0 1 0 470289488 6701056 200 33554432000 4194304 4337412 140735890286912 18446744073709551615 4304093 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2556/statm: 1636 200 146 35 0 77 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6544

[startup+0.300958 s]
/proc/loadavg: 0.92 1.35 2.28 7/188 2556
/proc/meminfo: memFree=16610380/32951124 swapFree=67111528/67111528
[pid=2556] ppid=2554 vsize=6544 CPUtime=0.29 cores=4,6
/proc/2556/stat : 2556 (tts-5-4) R 2554 2556 1921 0 -1 4202496 267 0 0 0 29 0 0 0 22 0 1 0 470289488 6701056 212 33554432000 4194304 4337412 140735890286912 18446744073709551615 4290294 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2556/statm: 1636 212 157 35 0 77 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6544

[startup+0.700888 s]
/proc/loadavg: 0.92 1.35 2.28 7/188 2556
/proc/meminfo: memFree=16610380/32951124 swapFree=67111528/67111528
[pid=2556] ppid=2554 vsize=6544 CPUtime=0.69 cores=4,6
/proc/2556/stat : 2556 (tts-5-4) R 2554 2556 1921 0 -1 4202496 269 0 0 0 69 0 0 0 24 0 1 0 470289488 6701056 214 33554432000 4194304 4337412 140735890286912 18446744073709551615 4245640 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2556/statm: 1636 214 159 35 0 77 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6544

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

[startup+1.10677 s]
/proc/loadavg: 0.92 1.35 2.28 5/190 2558
/proc/meminfo: memFree=16561540/32951124 swapFree=67111528/67111528
[pid=2556] ppid=2554 vsize=22712 CPUtime=1.09 cores=4,6
/proc/2556/stat : 2556 (tts-5-4) R 2554 2556 1921 0 -1 4202496 3558 0 0 0 109 0 0 0 25 0 1 0 470289488 23257088 3503 33554432000 4194304 4337412 140735890286912 18446744073709551615 244446340122 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2556/statm: 5678 3504 176 35 0 4119 0
Current children cumulated CPU time (s) 1.09
Current children cumulated vsize (KiB) 22712

[startup+1.20078 s]
/proc/loadavg: 0.92 1.35 2.28 5/190 2558
/proc/meminfo: memFree=16561540/32951124 swapFree=67111528/67111528
[pid=2556] ppid=2554 vsize=25840 CPUtime=1.19 cores=4,6
/proc/2556/stat : 2556 (tts-5-4) R 2554 2556 1921 0 -1 4202496 4406 0 0 0 119 0 0 0 25 0 1 0 470289488 26460160 4351 33554432000 4194304 4337412 140735890286912 18446744073709551615 4233676 0 0 4096 0 0 0 0 17 4 0 0 0
/proc/2556/statm: 6460 4351 176 35 0 4901 0
Current children cumulated CPU time (s) 1.19
Current children cumulated vsize (KiB) 25840

Child status: 20
Real time (s): 1.25685
CPU time (s): 1.25181
CPU user time (s): 1.24481
CPU system time (s): 0.006998
CPU usage (%): 99.5987
Max. virtual memory (cumulated for all children) (KiB): 25840

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.24481
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 4972
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= 17

runsolver used 0.005999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node105 at 2011-04-23 21:28:10
IDJOB=3266577
IDBENCH=87817
IDSOLVER=1653
FILE ID=node105/3266577-1303586890
RUNJOBID= node105-1303586890-2516
PBS_JOBID= 13150357
Free space on /tmp= 71756 MiB

SOLVER NAME= tts 5-4
BENCH NAME= SAT02/handmade/zhang-lintao/xor-chain/x1_40.shuffled.cnf
COMMAND LINE= DIR/tts-5-4 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3266577-1303586890/watcher-3266577-1303586890 -o /tmp/evaluation-result-3266577-1303586890/solver-3266577-1303586890 -C 2400 -W 1300 -M 7680  HOME/tts-5-4 HOME/instance-3266577-1303586890.cnf

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

MD5SUM BENCH= 15f5068fb216bf26d5385140ce74faaf
RANDOM SEED=255457304

node105.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		: 2666.825
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	: 5333.65
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		: 2666.825
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	: 5226.15
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		: 2666.825
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		: 2666.825
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		: 2666.825
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	: 5410.70
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		: 2666.825
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	: 5332.74
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		: 2666.825
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		: 2666.825
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:      16610784 kB
Buffers:       2271172 kB
Cached:       13431476 kB
SwapCached:          0 kB
Active:        8328576 kB
Inactive:      7447904 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      16610784 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:             408 kB
Writeback:           0 kB
AnonPages:       71928 kB
Mapped:          15268 kB
Slab:           501664 kB
PageTables:       5508 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   248120 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= 71756 MiB
End job on node105 at 2011-04-23 21:28:12