Trace number 3751158

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
npSolver inc-topdown-quickBound (fixed)UNSAT 1.08 1.18045

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/
normalized-ooo.burch_dill.3.accl.ucl.opb
MD5SUM03090e2b7426cc03a4be73b62ee3d658
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.670897
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables4622
Total number of constraints12569
Number of constraints which are clauses11753
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints816
Minimum length of a constraint1
Maximum length of a constraint11
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 36
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 130
Number of bits of the biggest sum of numbers8
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.06	c run inc solver
0.00/0.06	c [INC SYSTEM] run initial solver
0.00/0.06	c [INC SYSTEM] preprocess with white file
0.00/0.24	c [INC SYSTEM] finished preprocessing in 0 s
0.00/0.24	c [INC SYSTEM] execute solver
1.08/1.17	c [INC SEARCH] formula is UNSAT
1.08/1.17	c [INC SYSTEM] solved the initial formula
1.08/1.17	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver Copyright (C) 2010-2011 Olivier ROUSSEL

This is runsolver version 3.3.1 (svn: 989)

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-3751158-1339112986/watcher-3751158-1339112986 -o /tmp/evaluation-result-3751158-1339112986/solver-3751158-1339112986 -C 1800 -W 1900 -M 15500 HOME/npSolver-pbo-Itdqb.sh HOME/instance-3751158-1339112986.opb 1013204241 HOME HOME 

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

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1900 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: 2.08 2.09 2.01 3/176 15068
/proc/meminfo: memFree=25378092/32873624 swapFree=7112/7112
[pid=15068] ppid=15066 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/15068/stat : 15068 (npSolver-pbo-It) S 15066 15068 12376 0 -1 4202496 356 0 0 0 0 0 0 0 20 0 1 0 377424087 9367552 274 33554432000 4194304 5064252 140736253463968 140736253462880 227512313422 0 65536 4100 65538 18446744071579302229 0 0 17 4 0 0 0 0 0
/proc/15068/statm: 2287 274 233 213 0 72 0

[startup+0.058902 s]
/proc/loadavg: 2.08 2.09 2.01 3/176 15068
/proc/meminfo: memFree=25378092/32873624 swapFree=7112/7112
[pid=15068] ppid=15066 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/15068/stat : 15068 (npSolver-pbo-It) S 15066 15068 12376 0 -1 4202496 356 0 0 0 0 0 0 0 20 0 1 0 377424087 9367552 274 33554432000 4194304 5064252 140736253463968 140736253462880 227512313422 0 65536 4100 65538 18446744071579302229 0 0 17 4 0 0 0 0 0
/proc/15068/statm: 2287 274 233 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

[startup+0.100225 s]
/proc/loadavg: 2.08 2.09 2.01 3/176 15068
/proc/meminfo: memFree=25378092/32873624 swapFree=7112/7112
[pid=15068] ppid=15066 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/15068/stat : 15068 (npSolver-pbo-It) S 15066 15068 12376 0 -1 4202496 356 0 0 0 0 0 0 0 20 0 1 0 377424087 9367552 274 33554432000 4194304 5064252 140736253463968 140736253462880 227512313422 0 65536 4100 65538 18446744071579302229 0 0 17 4 0 0 0 0 0
/proc/15068/statm: 2287 274 233 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

[startup+0.300211 s]
/proc/loadavg: 2.08 2.09 2.01 3/176 15068
/proc/meminfo: memFree=25378092/32873624 swapFree=7112/7112
[pid=15068] ppid=15066 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/15068/stat : 15068 (npSolver-pbo-It) S 15066 15068 12376 0 -1 4202496 356 0 0 0 0 0 0 0 20 0 1 0 377424087 9367552 274 33554432000 4194304 5064252 140736253463968 140736253462880 227512313422 0 65536 4100 65538 18446744071579302229 0 0 17 4 0 0 0 0 0
/proc/15068/statm: 2287 274 233 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

[startup+0.700218 s]
/proc/loadavg: 2.08 2.09 2.01 3/176 15068
/proc/meminfo: memFree=25378092/32873624 swapFree=7112/7112
[pid=15068] ppid=15066 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/15068/stat : 15068 (npSolver-pbo-It) S 15066 15068 12376 0 -1 4202496 356 0 0 0 0 0 0 0 20 0 1 0 377424087 9367552 274 33554432000 4194304 5064252 140736253463968 140736253462880 227512313422 0 65536 4100 65538 18446744071579302229 0 0 17 4 0 0 0 0 0
/proc/15068/statm: 2287 274 233 213 0 72 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 9148

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

[startup+1.10626 s]
/proc/loadavg: 2.08 2.09 2.01 3/179 15074
/proc/meminfo: memFree=25365916/32873624 swapFree=7112/7112
[pid=15068] ppid=15066 vsize=9148 CPUtime=0 cores=0,2,4,6
/proc/15068/stat : 15068 (npSolver-pbo-It) S 15066 15068 12376 0 -1 4202496 356 0 0 0 0 0 0 0 20 0 1 0 377424087 9367552 274 33554432000 4194304 5064252 140736253463968 140736253462880 227512313422 0 65536 4100 65538 18446744071579302229 0 0 17 4 0 0 0 0 0
/proc/15068/statm: 2287 274 233 213 0 72 0
[pid=15069] ppid=15068 vsize=7804 CPUtime=0.22 cores=0,2,4,6
/proc/15069/stat : 15069 (npSolver-pbo) S 15068 15068 12376 0 -1 4202496 3703 4550 0 0 4 1 16 1 20 0 1 0 377424087 7991296 1581 33554432000 4194304 6004724 140736226181200 140736226167480 5190736 0 0 4096 0 18446744071580380219 0 0 17 0 0 0 0 0 0
/proc/15069/statm: 1951 1581 152 442 0 1505 0
[pid=15074] ppid=15069 vsize=8540 CPUtime=0.86 cores=0,2,4,6
/proc/15074/stat : 15074 (glucosInc) R 15069 15068 12376 0 -1 4202496 2299 0 0 0 86 0 0 0 20 0 1 0 377424111 8744960 1633 33554432000 4194304 5654031 140736674032096 140736674029976 4232767 0 0 4096 0 0 0 0 17 4 0 0 0 0 0
/proc/15074/statm: 2135 1633 138 357 0 1775 0
Current children cumulated CPU time (s) 1.08
Current children cumulated vsize (KiB) 25492

Child status: 0

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 15068 and gives
#  childrusage.ru_utime.tv_sec=0
#  childrusage.ru_utime.tv_usec=213967
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=29995
# CPU time returned by wait4() is 0.243962
# while last known CPU time is 1.08
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 1.18045
CPU time (s): 1.08
CPU user time (s): 1.06
CPU system time (s): 0.02
CPU usage (%): 91.4902
Max. virtual memory (cumulated for all children) (KiB): 25492

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.213967
system time used= 0.029995
maximum resident set size= 33616
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9439
page faults= 0
swaps= 0
block input operations= 0
block output operations= 1840
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 12
involuntary context switches= 9

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data 

Begin job on node121 at 2012-06-08 01:49:46
IDJOB=3751158
IDBENCH=1467
IDSOLVER=2335
FILE ID=node121/3751158-1339112986
RUNJOBID= node121-1339111019-14194
PBS_JOBID= 14643732
Free space on /tmp= 71152 MiB

SOLVER NAME= npSolver inc-topdown-quickBound
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/web/uclid_pb_benchmarks/normalized-ooo.burch_dill.3.accl.ucl.opb
COMMAND LINE= DIR/npSolver-pbo-Itdqb.sh BENCHNAME RANDOMSEED TMPDIR DIR
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-3751158-1339112986/watcher-3751158-1339112986 -o /tmp/evaluation-result-3751158-1339112986/solver-3751158-1339112986 -C 1800 -W 1900 -M 15500  HOME/npSolver-pbo-Itdqb.sh HOME/instance-3751158-1339112986.opb 1013204241 HOME HOME

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 15500 MiB
NBCORE= 4

MD5SUM BENCH= 03090e2b7426cc03a4be73b62ee3d658
RANDOM SEED=1013204241

node121.alineos.net Linux 2.6.32-71.29.1.el6.x86_64 #1 SMP Mon Jun 27 19:49:27 BST 2011

/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		: 2667.042
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 0
initial apicid	: 0
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5334.08
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.042
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 0
cpu cores	: 4
apicid		: 16
initial apicid	: 16
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 2
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.042
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 2
initial apicid	: 2
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.92
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 3
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.042
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 1
cpu cores	: 4
apicid		: 18
initial apicid	: 18
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 4
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.042
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 4
initial apicid	: 4
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 5
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.042
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 2
cpu cores	: 4
apicid		: 20
initial apicid	: 20
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 6
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.042
cache size	: 8192 KB
physical id	: 0
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 6
initial apicid	: 6
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5438.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:

processor	: 7
vendor_id	: GenuineIntel
cpu family	: 6
model		: 26
model name	: Intel(R) Xeon(R) CPU           X5550  @ 2.67GHz
stepping	: 5
cpu MHz		: 2667.042
cache size	: 8192 KB
physical id	: 1
siblings	: 4
core id		: 3
cpu cores	: 4
apicid		: 22
initial apicid	: 22
fpu		: yes
fpu_exception	: yes
cpuid level	: 11
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good xtopology nonstop_tsc aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 sse4_2 popcnt lahf_lm ida tpr_shadow vnmi flexpriority ept vpid
bogomips	: 5331.91
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32873624 kB
MemFree:        25378736 kB
Buffers:          709284 kB
Cached:          4961332 kB
SwapCached:            0 kB
Active:          3200852 kB
Inactive:        3388548 kB
Active(anon):     907608 kB
Inactive(anon):    10736 kB
Active(file):    2293244 kB
Inactive(file):  3377812 kB
Unevictable:        7112 kB
Mlocked:            7112 kB
SwapTotal:      67108856 kB
SwapFree:       67108856 kB
Dirty:              8564 kB
Writeback:             0 kB
AnonPages:        947336 kB
Mapped:            15492 kB
Shmem:               200 kB
Slab:             764632 kB
SReclaimable:     208512 kB
SUnreclaim:       556120 kB
KernelStack:        1488 kB
PageTables:         6036 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545668 kB
Committed_AS:    1275664 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346400 kB
VmallocChunk:   34341988052 kB
HardwareCorrupted:     0 kB
AnonHugePages:    509952 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7680 kB
DirectMap2M:    33538048 kB

Free space on /tmp at the end= 71140 MiB
End job on node121 at 2012-06-08 01:49:47