Trace number 3266501

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
synit_sat 2011-03-03UNSAT 6.63899 6.63992

General information on the benchmark

NameSAT02/handmade/zhang-lintao/
xor-chain/x1_80.shuffled.cnf
MD5SUM53a7d1541ad9c0dde902ec3a505ae8fc
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.001998
Satisfiable
(Un)Satisfiability was proved
Number of variables238
Number of clauses634
Sum of the clauses size1900
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22
Number of clauses of size 3632
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 start  0 total 0
0.00/0.00	c Find Units :          0
0.00/0.00	c Find Invs  :          1
0.00/0.00	c Find Ands  :          0 AvgFaninNum: nan
0.00/0.00	c Find Xors  :        158 AvgFaninNum: 2
0.00/0.00	c Find Ite   :          0
0.00/0.00	c UnDirect variable: 238
0.00/0.00	c UnDirect to Direct Gate: 142
0.00/0.00	c Forced Direct Gate: 117 Unuse unDirect Gate: 120
0.00/0.00	c Break Cycle : 0
0.00/0.00	c Total Root : 12 Undef Var: 96
0.00/0.00	c After covering, Total Root: 12 Leaf: 91
0.00/0.00	c Variable( cover/uncovered/unused ): 233 5 0
0.00/0.00	c Unit Clauses: 0
0.00/0.00	c Binary Clauses( cover/uncovered ): 2 0
0.00/0.00	c Clauses( cover/uncovered ): 564 68
0.00/0.00	c Total Clauses( cover/uncovered ): 566 68 89.2744%
0.00/0.00	c Covered Ands: 0 Invs: 1 Xors: 141 Ites: 0
0.00/0.00	c Uncover Clauses avg size: 3 max size: 3
0.00/0.00	c Final circuit: i/l/o/s      96       0      68       559
0.00/0.00	c cover rate 89.2744
0.00/0.00	c rocky end  0 total 0
0.00/0.00	c covering time  0 total 0
6.59/6.63	c solve time  6.62 total 6.62
6.59/6.63	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-3266501-1303582855/watcher-3266501-1303582855 -o /tmp/evaluation-result-3266501-1303582855/solver-3266501-1303582855 -C 2400 -W 1300 -M 7680 HOME/synit_sat HOME/instance-3266501-1303582855.cnf 1194011983 

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: 2.19 3.53 3.80 2/174 12791
/proc/meminfo: memFree=14486704/32951124 swapFree=67111528/67111528
[pid=12791] ppid=12789 vsize=29716 CPUtime=0 cores=5,7
/proc/12791/stat : 12791 (synit_sat) R 12789 12791 12159 0 -1 4202496 2050 0 0 0 0 0 0 0 23 0 1 0 469886404 30429184 1984 33554432000 4194304 4947581 140733258379088 18446744073709551615 270624937360 0 0 4096 0 0 0 0 17 5 0 0 0
/proc/12791/statm: 7429 1984 334 184 0 2304 0

[startup+0.068836 s]
/proc/loadavg: 2.19 3.53 3.80 2/174 12791
/proc/meminfo: memFree=14486704/32951124 swapFree=67111528/67111528
[pid=12791] ppid=12789 vsize=48388 CPUtime=0.06 cores=5,7
/proc/12791/stat : 12791 (synit_sat) R 12789 12791 12159 0 -1 4202496 2729 0 0 0 6 0 0 0 23 0 1 0 469886404 49549312 2663 33554432000 4194304 4947581 140733258379088 18446744073709551615 4352400 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/12791/statm: 12097 2663 463 184 0 6972 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 48388

[startup+0.100821 s]
/proc/loadavg: 2.19 3.53 3.80 2/174 12791
/proc/meminfo: memFree=14486704/32951124 swapFree=67111528/67111528
[pid=12791] ppid=12789 vsize=48388 CPUtime=0.09 cores=5,7
/proc/12791/stat : 12791 (synit_sat) R 12789 12791 12159 0 -1 4202496 2840 0 0 0 9 0 0 0 23 0 1 0 469886404 49549312 2774 33554432000 4194304 4947581 140733258379088 18446744073709551615 4398445 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/12791/statm: 12097 2774 463 184 0 6972 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 48388

[startup+0.300783 s]
/proc/loadavg: 2.19 3.53 3.80 2/174 12791
/proc/meminfo: memFree=14486704/32951124 swapFree=67111528/67111528
[pid=12791] ppid=12789 vsize=74484 CPUtime=0.29 cores=5,7
/proc/12791/stat : 12791 (synit_sat) R 12789 12791 12159 0 -1 4202496 3659 0 0 0 29 0 0 0 25 0 1 0 469886404 76271616 3593 33554432000 4194304 4947581 140733258379088 18446744073709551615 4353731 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/12791/statm: 18621 3593 467 184 0 13496 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 74484

[startup+0.700715 s]
/proc/loadavg: 2.19 3.53 3.80 2/174 12791
/proc/meminfo: memFree=14486704/32951124 swapFree=67111528/67111528
[pid=12791] ppid=12789 vsize=92140 CPUtime=0.69 cores=5,7
/proc/12791/stat : 12791 (synit_sat) R 12789 12791 12159 0 -1 4202496 4369 0 0 0 69 0 0 0 25 0 1 0 469886404 94351360 4303 33554432000 4194304 4947581 140733258379088 18446744073709551615 4398566 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/12791/statm: 23035 4304 469 184 0 17910 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 92140

[startup+1.50057 s]
/proc/loadavg: 2.19 3.53 3.80 5/190 12817
/proc/meminfo: memFree=14411296/32951124 swapFree=67111528/67111528
[pid=12791] ppid=12789 vsize=101304 CPUtime=1.49 cores=5,7
/proc/12791/stat : 12791 (synit_sat) R 12789 12791 12159 0 -1 4202496 5858 0 0 0 149 0 0 0 25 0 1 0 469886404 103735296 5792 33554432000 4194304 4947581 140733258379088 18446744073709551615 4398646 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/12791/statm: 25326 5792 469 184 0 20201 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 101304

[startup+3.10029 s]
/proc/loadavg: 2.19 3.53 3.80 5/190 12871
/proc/meminfo: memFree=14217848/32951124 swapFree=67111528/67111528
[pid=12791] ppid=12789 vsize=101304 CPUtime=3.09 cores=5,7
/proc/12791/stat : 12791 (synit_sat) R 12789 12791 12159 0 -1 4202496 8301 0 0 0 308 1 0 0 25 0 1 0 469886404 103735296 8235 33554432000 4194304 4947581 140733258379088 18446744073709551615 4343664 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/12791/statm: 25326 8235 469 184 0 20201 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 101304

[startup+6.30073 s]
/proc/loadavg: 2.34 3.53 3.80 5/190 12871
/proc/meminfo: memFree=13469532/32951124 swapFree=67111528/67111528
[pid=12791] ppid=12789 vsize=101304 CPUtime=6.29 cores=5,7
/proc/12791/stat : 12791 (synit_sat) R 12789 12791 12159 0 -1 4202496 9943 0 0 0 628 1 0 0 25 0 1 0 469886404 103735296 9877 33554432000 4194304 4947581 140733258379088 18446744073709551615 4491840 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/12791/statm: 25326 9877 469 184 0 20201 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 101304

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

[startup+6.50069 s]
/proc/loadavg: 2.34 3.53 3.80 5/190 12871
/proc/meminfo: memFree=13468912/32951124 swapFree=67111528/67111528
[pid=12791] ppid=12789 vsize=101304 CPUtime=6.49 cores=5,7
/proc/12791/stat : 12791 (synit_sat) R 12789 12791 12159 0 -1 4202496 9943 0 0 0 648 1 0 0 25 0 1 0 469886404 103735296 9877 33554432000 4194304 4947581 140733258379088 18446744073709551615 4491864 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/12791/statm: 25326 9877 469 184 0 20201 0
Current children cumulated CPU time (s) 6.49
Current children cumulated vsize (KiB) 101304

[startup+6.60668 s]
/proc/loadavg: 2.34 3.53 3.80 5/190 12871
/proc/meminfo: memFree=13468912/32951124 swapFree=67111528/67111528
[pid=12791] ppid=12789 vsize=101304 CPUtime=6.59 cores=5,7
/proc/12791/stat : 12791 (synit_sat) R 12789 12791 12159 0 -1 4202496 9943 0 0 0 658 1 0 0 25 0 1 0 469886404 103735296 9877 33554432000 4194304 4947581 140733258379088 18446744073709551615 4491870 0 0 4096 24578 0 0 0 17 5 0 0 0
/proc/12791/statm: 25326 9877 469 184 0 20201 0
Current children cumulated CPU time (s) 6.59
Current children cumulated vsize (KiB) 101304

Child status: 0
Real time (s): 6.63992
CPU time (s): 6.63899
CPU user time (s): 6.62099
CPU system time (s): 0.017997
CPU usage (%): 99.986
Max. virtual memory (cumulated for all children) (KiB): 101304

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 6.62099
system time used= 0.017997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9949
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= 11
involuntary context switches= 6

runsolver used 0.010998 second user time and 0.031995 second system time

The end

Launcher Data 

Begin job on node108 at 2011-04-23 20:20:55
IDJOB=3266501
IDBENCH=87811
IDSOLVER=1571
FILE ID=node108/3266501-1303582855
RUNJOBID= node108-1303582855-12777
PBS_JOBID= 13150338
Free space on /tmp= 71400 MiB

SOLVER NAME= synit_sat 2011-03-03
BENCH NAME= SAT02/handmade/zhang-lintao/xor-chain/x1_80.shuffled.cnf
COMMAND LINE= HOME/synit_sat BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3266501-1303582855/watcher-3266501-1303582855 -o /tmp/evaluation-result-3266501-1303582855/solver-3266501-1303582855 -C 2400 -W 1300 -M 7680  HOME/synit_sat HOME/instance-3266501-1303582855.cnf 1194011983

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

MD5SUM BENCH= 53a7d1541ad9c0dde902ec3a505ae8fc
RANDOM SEED=1194011983

node108.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		: 2666.820
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	: 5333.64
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.77
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		: 2666.820
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		: 2666.820
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		: 2666.820
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		: 2666.820
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	: 5332.83
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management: [8]


/proc/meminfo:
MemTotal:     32951124 kB
MemFree:      14487232 kB
Buffers:       2252936 kB
Cached:       15577108 kB
SwapCached:          0 kB
Active:        9912636 kB
Inactive:      7981420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      14487232 kB
SwapTotal:    67111528 kB
SwapFree:     67111528 kB
Dirty:            4408 kB
Writeback:           0 kB
AnonPages:       62680 kB
Mapped:          14492 kB
Slab:           505832 kB
PageTables:       5136 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS:   189384 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= 71376 MiB
End job on node108 at 2011-04-23 20:21:01