Trace number 3421328

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
RestartSAT B95UNSAT 0.896862 0.898556

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 benchmark0.096984
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 

0.79/0.89	c WARNING: for repeatability, setting FPU to use double precision
0.79/0.89	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: 961)

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-3421328-1306627146/watcher-3421328-1306627146 -o /tmp/evaluation-result-3421328-1306627146/solver-3421328-1306627146 -C 5000 -W 5100 -M 15500 HOME/RestartSAT -rfirst=1 -var-decay=0.95 HOME/instance-3421328-1306627146.cnf 

running on 4 cores: 0,2,4,6

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 5100 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: 2.09 1.82 1.47 2/436 12652
/proc/meminfo: memFree=11644548/32951124 swapFree=62199376/67111528
[pid=12652] ppid=12650 vsize=14760 CPUtime=0.01 cores=0,2,4,6
/proc/12652/stat : 12652 (RestartSAT) R 12650 12652 11904 0 -1 4202496 377 0 0 0 1 0 0 0 25 0 1 0 774312503 15114240 316 33554432000 4194304 4291949 140733810302848 18446744073709551615 4255676 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/12652/statm: 3690 316 247 24 0 324 0

[startup+0.112857 s]
/proc/loadavg: 2.09 1.82 1.47 2/436 12652
/proc/meminfo: memFree=11644548/32951124 swapFree=62199376/67111528
[pid=12652] ppid=12650 vsize=14908 CPUtime=0.11 cores=0,2,4,6
/proc/12652/stat : 12652 (RestartSAT) R 12650 12652 11904 0 -1 4202496 407 0 0 0 11 0 0 0 25 0 1 0 774312503 15265792 343 33554432000 4194304 4291949 140733810302848 18446744073709551615 4256186 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/12652/statm: 3727 343 248 24 0 361 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 14908

[startup+0.200857 s]
/proc/loadavg: 2.09 1.82 1.47 2/436 12652
/proc/meminfo: memFree=11644548/32951124 swapFree=62199376/67111528
[pid=12652] ppid=12650 vsize=14908 CPUtime=0.19 cores=0,2,4,6
/proc/12652/stat : 12652 (RestartSAT) R 12650 12652 11904 0 -1 4202496 415 0 0 0 19 0 0 0 25 0 1 0 774312503 15265792 351 33554432000 4194304 4291949 140733810302848 18446744073709551615 4262626 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/12652/statm: 3727 351 248 24 0 361 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 14908

[startup+0.300861 s]
/proc/loadavg: 2.09 1.82 1.47 2/436 12652
/proc/meminfo: memFree=11644548/32951124 swapFree=62199376/67111528
[pid=12652] ppid=12650 vsize=15076 CPUtime=0.29 cores=0,2,4,6
/proc/12652/stat : 12652 (RestartSAT) R 12650 12652 11904 0 -1 4202496 422 0 0 0 29 0 0 0 25 0 1 0 774312503 15437824 357 33554432000 4194304 4291949 140733810302848 18446744073709551615 4255698 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/12652/statm: 3769 357 248 24 0 403 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 15076

[startup+0.700786 s]
/proc/loadavg: 2.09 1.82 1.47 2/436 12652
/proc/meminfo: memFree=11644548/32951124 swapFree=62199376/67111528
[pid=12652] ppid=12650 vsize=15076 CPUtime=0.69 cores=0,2,4,6
/proc/12652/stat : 12652 (RestartSAT) R 12650 12652 11904 0 -1 4202496 445 0 0 0 69 0 0 0 25 0 1 0 774312503 15437824 380 33554432000 4194304 4291949 140733810302848 18446744073709551615 4261535 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/12652/statm: 3769 380 248 24 0 403 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15076

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

[startup+0.800768 s]
/proc/loadavg: 2.09 1.82 1.47 2/436 12652
/proc/meminfo: memFree=11644548/32951124 swapFree=62199376/67111528
[pid=12652] ppid=12650 vsize=15076 CPUtime=0.79 cores=0,2,4,6
/proc/12652/stat : 12652 (RestartSAT) R 12650 12652 11904 0 -1 4202496 445 0 0 0 79 0 0 0 25 0 1 0 774312503 15437824 380 33554432000 4194304 4291949 140733810302848 18446744073709551615 4276258 0 0 4096 8388610 0 0 0 17 4 0 0 0
/proc/12652/statm: 3769 380 248 24 0 403 0
Current children cumulated CPU time (s) 0.79
Current children cumulated vsize (KiB) 15076

Child status: 20
Real time (s): 0.898556
CPU time (s): 0.896862
CPU user time (s): 0.895863
CPU system time (s): 0.000999
CPU usage (%): 99.8115
Max. virtual memory (cumulated for all children) (KiB): 15076

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.895863
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 450
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= 2

runsolver used 0.003999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node135 at 2011-05-29 01:59:06
IDJOB=3421328
IDBENCH=85447
IDSOLVER=1911
FILE ID=node135/3421328-1306627146
RUNJOBID= node135-1306626706-12566
PBS_JOBID= 13471616
Free space on /tmp= 73532 MiB

SOLVER NAME= RestartSAT B95
BENCH NAME= SAT05/crafted/sabharwal05/counting/php/unsat/easier/php-010-008.shuffled-as.sat05-1171.cnf
COMMAND LINE= HOME/RestartSAT -rfirst=1 -var-decay=0.95 BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3421328-1306627146/watcher-3421328-1306627146 -o /tmp/evaluation-result-3421328-1306627146/solver-3421328-1306627146 -C 5000 -W 5100 -M 15500  HOME/RestartSAT -rfirst=1 -var-decay=0.95 HOME/instance-3421328-1306627146.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 421970908f111607c59182237109849e
RANDOM SEED=646379631

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:      11644712 kB
Buffers:        352996 kB
Cached:        7870516 kB
SwapCached:      84472 kB
Active:       14151844 kB
Inactive:      6856960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     32951124 kB
LowFree:      11644712 kB
SwapTotal:    67111528 kB
SwapFree:     62199376 kB
Dirty:             436 kB
Writeback:           0 kB
AnonPages:    12706276 kB
Mapped:          26484 kB
Slab:           164616 kB
PageTables:      65992 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:  83587088 kB
Committed_AS: 124659148 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= 73532 MiB
End job on node135 at 2011-05-29 01:59:07