Trace number 4101495

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 NameAnswerobjective functionCPU timeWall clock time
cdcl-cuttingplanes OPT binary search 2016-05-01OPT262288 0.279957 0.281694

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/
miplib/normalized-reduced-mps-v2-20-10-misc01.opb
MD5SUMc2934cbe264e98064d53d09fc14b43dc
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark262288
Best CPU time to get the best result obtained on this benchmark0.240962
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 262288
Optimality of the best value was proved YES
Number of variables113
Total number of constraints54
Number of constraints which are clauses15
Number of constraints which are cardinality constraints (but not clauses)6
Number of constraints which are nor clauses,nor cardinality constraints33
Minimum length of a constraint5
Maximum length of a constraint101
Number of terms in the objective function 31
Biggest coefficient in the objective function 262145
Number of bits for the biggest coefficient in the objective function 19
Sum of the numbers in the objective function 524318
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262145
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 524336
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.01	c OPTIONS:
0.00/0.01	c - Resolve (`-resolve-always' or `-resolve-skip'): -resolve-skip
0.00/0.01	c * #variable= 113 #constraint= 54
0.00/0.01	c * #variable= 113 #constraint= 54
0.09/0.10	c S1->S2
0.09/0.10	c S2->S1
0.09/0.10	c S2->S1
0.09/0.10	c S1->S2
0.09/0.10	c S1->S2
0.09/0.10	c S1->S2
0.09/0.10	c S1->S2
0.09/0.10	c S1->S2
0.09/0.10	c S1->S2
0.09/0.10	c S1->S2
0.09/0.10	c S1->S2
0.09/0.10	c S1->S2
0.09/0.10	c S1->S2
0.09/0.10	c S1->S2
0.09/0.10	c S2->S1
0.09/0.10	c #Conflicts:       1000 | #Learnt:        395 | 0.012
0.09/0.10	c total clause space: 4.25031MB
0.09/0.10	c total #watches: 5395
0.19/0.23	c total #propagations: 25566 / total #impl: 418539 (eff. 0.061)
0.19/0.23	c S2->S1
0.19/0.23	c S2->S1
0.19/0.23	c S1->S2
0.19/0.23	c S1->S2
0.19/0.23	c S1->S2
0.19/0.23	c #Conflicts:       2000 | #Learnt:        360 | 0.107
0.19/0.23	c total clause space: 4.25031MB
0.19/0.23	c total #watches: 9394
0.19/0.28	c total #propagations: 48168 / total #impl: 1350254 (eff. 0.036)
0.19/0.28	c GC COLLECT
0.19/0.28	c S2->S1
0.19/0.28	o 262288
0.19/0.28	s OPTIMUM FOUND
0.19/0.28	v -x1 -x2 -x3 x4 -x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 x22 -x23 -x24 -x25 -x26 -x27 -x28 -x29 -x30 x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 x47 -x48 -x49 x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 x73 x74 x75 -x76 x77 -x78 -x79 x80 -x81 x82 x83 x84 -x85 x86 x87 x88 x89 x90 x91 x92 x93 x94 -x95 x96 -x97 -x98 -x99 -x100 -x101 x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 -x111 -x112 x113
0.19/0.28	c CPU time              : 0.268959 s

Verifier Data 

OK	262288

Watcher Data 

runsolver Copyright (C) 2010-2013 Olivier ROUSSEL

This is runsolver version 3.3.7 (svn: 2553)

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-4101495-1466254399/watcher-4101495-1466254399 -o /tmp/evaluation-result-4101495-1466254399/solver-4101495-1466254399 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node134-1466240312-11240 --watchdog 1960 --input HOME/instance-4101495-1466254399.opb ./cdcl-cuttingplanes-opt-binarysearch-release 

pid=12761
running on 4 cores: 1,3,5,7

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: 2.39 2.32 2.28 3/178 12764
/proc/meminfo: memFree=29937800/32872528 swapFree=1482636/1662508
[pid=12764] ppid=12761 vsize=55976 CPUtime=0 cores=1,3,5,7
/proc/12764/stat : 12764 (cdcl-cuttingpla) R 12761 12764 11223 0 -1 4202496 255 0 0 0 0 0 0 0 20 0 1 0 27486359 57319424 6780 33554432000 4194304 6211289 140736820014272 140736820013576 4206551 0 0 4096 0 0 0 0 17 3 0 0 0 0 0
/proc/12764/statm: 13994 6780 98 493 0 13491 0

[startup+0.100133 s]
/proc/loadavg: 2.39 2.32 2.28 3/178 12764
/proc/meminfo: memFree=29937800/32872528 swapFree=1482636/1662508
[pid=12764] ppid=12761 vsize=64980 CPUtime=0.09 cores=1,3,5,7
/proc/12764/stat : 12764 (cdcl-cuttingpla) R 12761 12764 11223 0 -1 4202496 978 0 0 0 9 0 0 0 20 0 1 0 27486359 66539520 13455 33554432000 4194304 6211289 140736820014272 140736820012552 4246379 0 0 4096 8388610 0 0 0 17 3 0 0 0 0 0
/proc/12764/statm: 16245 13455 204 493 0 15742 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 64980

[startup+0.200352 s]
/proc/loadavg: 2.39 2.32 2.28 3/178 12764
/proc/meminfo: memFree=29937800/32872528 swapFree=1482636/1662508
[pid=12764] ppid=12761 vsize=64980 CPUtime=0.19 cores=1,3,5,7
/proc/12764/stat : 12764 (cdcl-cuttingpla) R 12761 12764 11223 0 -1 4202496 1083 0 0 0 19 0 0 0 20 0 1 0 27486359 66539520 13527 33554432000 4194304 6211289 140736820014272 140736820012552 4209495 0 0 4096 8388610 0 0 0 17 3 0 0 0 0 0
/proc/12764/statm: 16245 13527 214 493 0 15742 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 64980

Solver just ended.
??? exit watcher main loop
??? sigkill at end of watcher main loop
??? kill 12764 sig 9
??? end of watcher thread
Dumping a history of the last processes samples

Child status: 30
Real time (s): 0.281694
CPU time (s): 0.279957
CPU user time (s): 0.273958
CPU system time (s): 0.005999
CPU usage (%): 99.3834
Max. virtual memory (cumulated for all children) (KiB): 64980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.273958
system time used= 0.005999
maximum resident set size= 54132
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1090
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= 3
involuntary context switches= 4

??? join timestamper begins
??? join timestamper ends
??? end of timestamper thread
runsolver used 0.004999 second user time and 0.005999 second system time

The end

Launcher Data 

Begin job on node134 at 2016-06-18 14:53:19
IDJOB=4101495
IDBENCH=1756
IDSOLVER=2549
FILE ID=node134/4101495-1466254399
RUNJOBID= node134-1466240312-11240
PBS_JOBID= 19918182
Free space on /tmp= 71716 MiB

SOLVER NAME= cdcl-cuttingplanes OPT binary search 2016-05-01
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib/normalized-reduced-mps-v2-20-10-misc01.opb
COMMAND LINE= ./cdcl-cuttingplanes-opt-binarysearch-release
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-4101495-1466254399/watcher-4101495-1466254399 -o /tmp/evaluation-result-4101495-1466254399/solver-4101495-1466254399 -C 1800 -W 1900 -M 15500 --bin-var /tmp/runsolver-exch-node134-1466240312-11240 --watchdog 1960 --input HOME/instance-4101495-1466254399.opb ./cdcl-cuttingplanes-opt-binarysearch-release

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

MD5SUM BENCH= c2934cbe264e98064d53d09fc14b43dc
RANDOM SEED=755002455

node134.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		: 2667.020
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	: 5334.04
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		: 2667.020
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	: 7358.89
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		: 2667.020
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	: 5332.55
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		: 2667.020
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	: 5332.55
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		: 2667.020
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	: 5332.55
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		: 2667.020
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	: 5332.54
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		: 2667.020
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	: 5332.55
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		: 2667.020
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	: 5332.55
clflush size	: 64
cache_alignment	: 64
address sizes	: 40 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:       32872528 kB
MemFree:        29938776 kB
Buffers:          144960 kB
Cached:           166924 kB
SwapCached:         1008 kB
Active:           295448 kB
Inactive:         242532 kB
Active(anon):     226728 kB
Inactive(anon):     1616 kB
Active(file):      68720 kB
Inactive(file):   240916 kB
Unevictable:     1662508 kB
Mlocked:         1482636 kB
SwapTotal:      67108856 kB
SwapFree:       67100112 kB
Dirty:              2340 kB
Writeback:             0 kB
AnonPages:       1979616 kB
Mapped:             7868 kB
Shmem:                 0 kB
Slab:             601548 kB
SReclaimable:      45548 kB
SUnreclaim:       556000 kB
KernelStack:        1488 kB
PageTables:         7416 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:    83545120 kB
Committed_AS:    2087028 kB
VmallocTotal:   34359738367 kB
VmallocUsed:      346412 kB
VmallocChunk:   34341987908 kB
HardwareCorrupted:     0 kB
AnonHugePages:    462848 kB
HugePages_Total:       0
HugePages_Free:        0
HugePages_Rsvd:        0
HugePages_Surp:        0
Hugepagesize:       2048 kB
DirectMap4k:        7552 kB
DirectMap2M:    33538048 kB

Free space on /tmp at the end= 71716 MiB
End job on node134 at 2016-06-18 14:53:20